Remove unused leaflet.draw.override.js

Switch map provider from Mapbox to OSM
Update release.yml
2026-01-01 10:48:06 -05:00 · 2025-05-19 17:18:15 +02:00 · 2025-05-19 17:11:33 +02:00 · 2025-05-18 16:48:02 +02:00 · 2025-05-18 16:24:25 +02:00 · 2025-05-18 16:23:59 +02:00
53 changed files with 3123 additions and 1190 deletions
--- a/.github/ISSUE_TEMPLATE/bug_report.md
+++ b/.github/ISSUE_TEMPLATE/bug_report.md
@@ -20,4 +20,4 @@ Please tell us what version of Arnis and Minecraft you used.
 If applicable, add screenshots to help explain your problem.

 **Additional context**
-Add any other context about the problem here. If you used any more custom settings, please provide them here too.
+Add any other context about the problem here. If you used any more custom settings, please provide them here too. If you experienced any issue with the application itself like a crash, please provide the log file which can be found at C:\Users\USERNAME\AppData\Local\com.louisdev.arnis\logs
--- a/.github/workflows/prerelease.yml.disabled
+++ b/.github/workflows/prerelease.yml.disabled
@@ -0,0 +1,92 @@
+name: [DISABLED] Pre-release Dev Build
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  build:
+    strategy:
+      matrix:
+        include:
+          - os: windows-latest
+            target: x86_64-pc-windows-msvc
+            binary_name: arnis.exe
+            asset_name: arnis-windows-x64.exe
+          - os: ubuntu-latest
+            target: x86_64-unknown-linux-gnu
+            binary_name: arnis
+            asset_name: arnis-linux-x64
+
+    runs-on: ${{ matrix.os }}
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Set up Rust
+        uses: dtolnay/rust-toolchain@v1
+        with:
+          toolchain: stable
+          targets: ${{ matrix.target }}
+
+      - name: Install Linux dependencies
+        if: matrix.os == 'ubuntu-latest'
+        run: |
+          sudo apt update
+          sudo apt install -y software-properties-common
+          sudo add-apt-repository universe
+          echo "deb http://archive.ubuntu.com/ubuntu $(lsb_release -sc)-backports main restricted universe multiverse" | sudo tee -a /etc/apt/sources.list
+          sudo apt update
+          sudo apt install -y libgtk-3-dev build-essential pkg-config libglib2.0-dev libsoup-3.0-dev libwebkit2gtk-4.1-dev
+          echo "PKG_CONFIG_PATH=/usr/lib/x86_64-linux-gnu/pkgconfig" >> $GITHUB_ENV
+
+      - name: Install dependencies
+        run: cargo fetch --locked
+
+      - name: Build
+        run: cargo build --frozen --release
+
+      - name: Upload artifact
+        uses: actions/upload-artifact@v3
+        with:
+          name: ${{ matrix.os }}-build
+          path: target/release/${{ matrix.binary_name }}
+
+  prerelease:
+    needs: build
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Download Windows build artifact
+        uses: actions/download-artifact@v3
+        with:
+          name: windows-latest-build
+          path: ./builds/windows
+
+      - name: Download Linux build artifact
+        uses: actions/download-artifact@v3
+        with:
+          name: ubuntu-latest-build
+          path: ./builds/linux
+
+      - name: Make Linux binary executable
+        run: chmod +x ./builds/linux/arnis
+
+      - name: Create Pre-release on GitHub
+        uses: ncipollo/release-action@v1
+        with:
+          tag: "dev-build-${{ github.run_number }}"
+          name: "Experimental Development Build #${{ github.run_number }}"
+          body: "Automated pre-release built from the main branch for testing purposes. This build may contain experimental features. For the latest official version, please download the latest stable release."
+          draft: false
+          prerelease: true
+          makeLatest: false
+          files: |
+            builds/windows/arnis.exe
+            builds/linux/arnis
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -12,17 +12,21 @@ jobs:
          - os: windows-latest
            target: x86_64-pc-windows-msvc
            binary_name: arnis.exe
-            asset_name: arnis-windows-x64.exe
+            asset_name: arnis-windows.exe
          - os: ubuntu-latest
            target: x86_64-unknown-linux-gnu
            binary_name: arnis
-            asset_name: arnis-linux-x64
+            asset_name: arnis-linux
+          - os: macos-latest
+            target: x86_64-apple-darwin
+            binary_name: arnis
+            asset_name: arnis-mac

    runs-on: ${{ matrix.os }}

    steps:
    - name: Checkout code
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4

    - name: Set up Rust
      uses: dtolnay/rust-toolchain@v1
@@ -47,11 +51,42 @@ jobs:
    - name: Build
      run: cargo build --release

+    - name: Rename binary for release
+      run: mv target/release/${{ matrix.binary_name }} target/release/${{ matrix.asset_name }}
+
+    - name: Install Windows SDK
+      if: matrix.os == 'windows-latest'
+      run: |
+        choco install windows-sdk-10.1 -y
+        $env:Path += ";C:\Program Files (x86)\Windows Kits\10\bin\x64"
+      shell: powershell
+
+    - name: Locate signtool.exe
+      if: matrix.os == 'windows-latest'
+      id: locate_signtool
+      run: |
+        $env:ProgramFilesX86 = [System.Environment]::GetFolderPath('ProgramFilesX86')
+        $signtoolPath = Get-ChildItem -Path "$env:ProgramFilesX86\Windows Kits\10\bin" -Recurse -Filter signtool.exe | Where-Object { $_.FullName -match '\\x64\\' } | Select-Object -First 1 -ExpandProperty FullName
+        if (-not $signtoolPath) { throw "signtool.exe not found." }
+        echo "signtool=$signtoolPath" | Out-File -FilePath $env:GITHUB_ENV -Encoding utf8 -Append
+      shell: powershell
+    
+    - name: Self-sign Windows executable
+      if: matrix.os == 'windows-latest'
+      run: |
+        $password = ConvertTo-SecureString -String $env:WINDOWS_CERT_PASSWORD -Force -AsPlainText
+        $cert = New-SelfSignedCertificate -Type CodeSigningCert -Subject 'CN=Arnis' -CertStoreLocation Cert:\CurrentUser\My -NotAfter (Get-Date).AddYears(5)
+        Export-PfxCertificate -Cert $cert -FilePath arnis-cert.pfx -Password $password
+        & $env:signtool sign /f arnis-cert.pfx /p $env:WINDOWS_CERT_PASSWORD /t http://timestamp.digicert.com target/release/${{ matrix.asset_name }}
+      env:
+        WINDOWS_CERT_PASSWORD: ${{ secrets.WINDOWS_CERT_PASSWORD }}
+      shell: powershell
+
    - name: Upload artifact
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
      with:
        name: ${{ matrix.os }}-build
-        path: target/release/${{ matrix.binary_name }}
+        path: target/release/${{ matrix.asset_name }}

  release:
    needs: build
@@ -61,25 +96,34 @@ jobs:
      uses: actions/checkout@v3

    - name: Download Windows build artifact
-      uses: actions/download-artifact@v3
+      uses: actions/download-artifact@v4
      with:
        name: windows-latest-build
        path: ./builds/windows

    - name: Download Linux build artifact
-      uses: actions/download-artifact@v3
+      uses: actions/download-artifact@v4
      with:
        name: ubuntu-latest-build
        path: ./builds/linux

-    - name: Make Linux binary executable
-      run: chmod +x ./builds/linux/arnis
+    - name: Download macOS build artifact
+      uses: actions/download-artifact@v4
+      with:
+        name: macos-latest-build
+        path: ./builds/macos
+
+    - name: Make Linux and macOS binaries executable
+      run: |
+        chmod +x ./builds/linux/arnis-linux
+        chmod +x ./builds/macos/arnis-mac

    - name: Create GitHub Release
-      uses: softprops/action-gh-release@v1
+      uses: softprops/action-gh-release@v2
      with:
        files: |
-          builds/windows/arnis.exe
-          builds/linux/arnis
+          builds/windows/arnis-windows.exe
+          builds/linux/arnis-linux
+          builds/macos/arnis-mac
      env:
-        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        GITHUB_TOKEN: ${{ secrets.RELEASE_TOKEN }}
--- a/.gitignore
+++ b/.gitignore
@@ -27,6 +27,7 @@ Thumbs.db
 # Generated files
 /export.json
 /parsed_osm_data.txt
+/elevation_debug.png
 /gen/
 /build/
 *.rmeta
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -168,7 +168,7 @@ dependencies = [

 [[package]]
 name = "arnis"
-version = "2.1.2"
+version = "2.2.1"
 dependencies = [
 "clap",
 "colored",
@@ -179,11 +179,13 @@ dependencies = [
 "fnv",
 "fs2",
 "geo",
+ "image 0.24.9",
 "indicatif",
 "itertools 0.14.0",
 "log",
 "once_cell",
 "rand 0.8.5",
+ "rayon",
 "reqwest",
 "rfd",
 "semver",
@@ -194,6 +196,7 @@ dependencies = [
 "tauri-plugin-log",
 "tauri-plugin-shell",
 "tokio",
+ "windows 0.59.0",
 ]

 [[package]]
@@ -984,6 +987,12 @@ version = "0.8.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d0a5c400df2834b80a4c3327b3aad3a4c4cd4de0629063962b03235697506a28"

+[[package]]
+name = "crunchy"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7a81dae078cea95a014a339291cec439d2f232ebe854a9d672b796c6afafa9b7"
+
 [[package]]
 name = "crypto-common"
 version = "0.1.6"
@@ -1346,6 +1355,21 @@ dependencies = [
 "pin-project-lite",
 ]

+[[package]]
+name = "exr"
+version = "1.73.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f83197f59927b46c04a183a619b7c29df34e63e63c7869320862268c0ef687e0"
+dependencies = [
+ "bit_field",
+ "half",
+ "lebe",
+ "miniz_oxide",
+ "rayon-core",
+ "smallvec",
+ "zune-inflate",
+]
+
 [[package]]
 name = "fastanvil"
 version = "0.31.0"
@@ -1356,7 +1380,7 @@ dependencies = [
 "byteorder",
 "fastnbt",
 "flate2",
- "image",
+ "image 0.23.14",
 "log",
 "num_enum 0.5.11",
 "once_cell",
@@ -1788,6 +1812,16 @@ dependencies = [
 "wasi 0.11.0+wasi-snapshot-preview1",
 ]

+[[package]]
+name = "gif"
+version = "0.13.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3fb2d69b19215e18bb912fa30f7ce15846e301408695e44e0ef719f1da9e19f2"
+dependencies = [
+ "color_quant",
+ "weezl",
+]
+
 [[package]]
 name = "gimli"
 version = "0.31.1"
@@ -1961,6 +1995,16 @@ dependencies = [
 "tracing",
 ]

+[[package]]
+name = "half"
+version = "2.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6dd08c532ae367adf81c312a4580bc67f1d0fe8bc9c460520283f4c0ff277888"
+dependencies = [
+ "cfg-if",
+ "crunchy",
+]
+
 [[package]]
 name = "hash32"
 version = "0.3.1"
@@ -2391,6 +2435,24 @@ dependencies = [
 "num-traits",
 ]

+[[package]]
+name = "image"
+version = "0.24.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5690139d2f55868e080017335e4b94cb7414274c74f1669c84fb5feba2c9f69d"
+dependencies = [
+ "bytemuck",
+ "byteorder",
+ "color_quant",
+ "exr",
+ "gif",
+ "jpeg-decoder",
+ "num-traits",
+ "png",
+ "qoi",
+ "tiff",
+]
+
 [[package]]
 name = "indexmap"
 version = "1.9.3"
@@ -2541,6 +2603,15 @@ version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8eaf4bc02d17cbdd7ff4c7438cafcdf7fb9a4613313ad11b4f8fefe7d3fa0130"

+[[package]]
+name = "jpeg-decoder"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f5d4a7da358eff58addd2877a45865158f0d78c911d43a5784ceb7bbf52833b0"
+dependencies = [
+ "rayon",
+]
+
 [[package]]
 name = "js-sys"
 version = "0.3.76"
@@ -2603,6 +2674,12 @@ version = "1.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bbd2bcb4c963f2ddae06a2efc7e9f3591312473c50c6685e1f298068316e66fe"

+[[package]]
+name = "lebe"
+version = "0.5.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "03087c2bad5e1034e8cace5926dec053fb3790248370865f5117a7d0213354c8"
+
 [[package]]
 name = "libappindicator"
 version = "0.9.0"
@@ -3689,6 +3766,15 @@ dependencies = [
 "syn 1.0.109",
 ]

+[[package]]
+name = "qoi"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7f6d64c71eb498fe9eae14ce4ec935c555749aef511cca85b5568910d6e48001"
+dependencies = [
+ "bytemuck",
+]
+
 [[package]]
 name = "quick-xml"
 version = "0.32.0"
@@ -4694,7 +4780,7 @@ dependencies = [
 "tao-macros",
 "unicode-segmentation",
 "url",
- "windows",
+ "windows 0.58.0",
 "windows-core 0.58.0",
 "windows-version",
 "x11-dl",
@@ -4780,7 +4866,7 @@ dependencies = [
 "webkit2gtk",
 "webview2-com",
 "window-vibrancy",
- "windows",
+ "windows 0.58.0",
 ]

 [[package]]
@@ -4922,7 +5008,7 @@ dependencies = [
 "tauri-utils",
 "thiserror 2.0.9",
 "url",
- "windows",
+ "windows 0.58.0",
 ]

 [[package]]
@@ -4947,7 +5033,7 @@ dependencies = [
 "url",
 "webkit2gtk",
 "webview2-com",
- "windows",
+ "windows 0.58.0",
 "wry",
 ]

@@ -5069,6 +5155,17 @@ dependencies = [
 "syn 2.0.95",
 ]

+[[package]]
+name = "tiff"
+version = "0.9.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ba1310fcea54c6a9a4fd1aad794ecc02c31682f6bfbecdf460bf19533eed1e3e"
+dependencies = [
+ "flate2",
+ "jpeg-decoder",
+ "weezl",
+]
+
 [[package]]
 name = "time"
 version = "0.3.37"
@@ -5789,10 +5886,10 @@ checksum = "823e7ebcfaea51e78f72c87fc3b65a1e602c321f407a0b36dbb327d7bb7cd921"
 dependencies = [
 "webview2-com-macros",
 "webview2-com-sys",
- "windows",
+ "windows 0.58.0",
 "windows-core 0.58.0",
- "windows-implement",
- "windows-interface",
+ "windows-implement 0.58.0",
+ "windows-interface 0.58.0",
 ]

 [[package]]
@@ -5813,10 +5910,16 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7a82bce72db6e5ee83c68b5de1e2cd6ea195b9fbff91cb37df5884cbe3222df4"
 dependencies = [
 "thiserror 1.0.69",
- "windows",
+ "windows 0.58.0",
 "windows-core 0.58.0",
 ]

+[[package]]
+name = "weezl"
+version = "0.1.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "53a85b86a771b1c87058196170769dd264f66c0782acf1ae6cc51bfd64b39082"
+
 [[package]]
 name = "winapi"
 version = "0.3.9"
@@ -5872,6 +5975,16 @@ dependencies = [
 "windows-targets 0.52.6",
 ]

+[[package]]
+name = "windows"
+version = "0.59.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7f919aee0a93304be7f62e8e5027811bbba96bcb1de84d6618be56e43f8a32a1"
+dependencies = [
+ "windows-core 0.59.0",
+ "windows-targets 0.53.0",
+]
+
 [[package]]
 name = "windows-core"
 version = "0.52.0"
@@ -5887,13 +6000,26 @@ version = "0.58.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6ba6d44ec8c2591c134257ce647b7ea6b20335bf6379a27dac5f1641fcf59f99"
 dependencies = [
- "windows-implement",
- "windows-interface",
- "windows-result",
- "windows-strings",
+ "windows-implement 0.58.0",
+ "windows-interface 0.58.0",
+ "windows-result 0.2.0",
+ "windows-strings 0.1.0",
 "windows-targets 0.52.6",
 ]

+[[package]]
+name = "windows-core"
+version = "0.59.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "810ce18ed2112484b0d4e15d022e5f598113e220c53e373fb31e67e21670c1ce"
+dependencies = [
+ "windows-implement 0.59.0",
+ "windows-interface 0.59.0",
+ "windows-result 0.3.0",
+ "windows-strings 0.3.0",
+ "windows-targets 0.53.0",
+]
+
 [[package]]
 name = "windows-implement"
 version = "0.58.0"
@@ -5905,6 +6031,17 @@ dependencies = [
 "syn 2.0.95",
 ]

+[[package]]
+name = "windows-implement"
+version = "0.59.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "83577b051e2f49a058c308f17f273b570a6a758386fc291b5f6a934dd84e48c1"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.95",
+]
+
 [[package]]
 name = "windows-interface"
 version = "0.58.0"
@@ -5916,14 +6053,25 @@ dependencies = [
 "syn 2.0.95",
 ]

+[[package]]
+name = "windows-interface"
+version = "0.59.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cb26fd936d991781ea39e87c3a27285081e3c0da5ca0fcbc02d368cc6f52ff01"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.95",
+]
+
 [[package]]
 name = "windows-registry"
 version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e400001bb720a623c1c69032f8e3e4cf09984deec740f007dd2b03ec864804b0"
 dependencies = [
- "windows-result",
- "windows-strings",
+ "windows-result 0.2.0",
+ "windows-strings 0.1.0",
 "windows-targets 0.52.6",
 ]

@@ -5936,16 +6084,34 @@ dependencies = [
 "windows-targets 0.52.6",
 ]

+[[package]]
+name = "windows-result"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d08106ce80268c4067c0571ca55a9b4e9516518eaa1a1fe9b37ca403ae1d1a34"
+dependencies = [
+ "windows-targets 0.53.0",
+]
+
 [[package]]
 name = "windows-strings"
 version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4cd9b125c486025df0eabcb585e62173c6c9eddcec5d117d3b6e8c30e2ee4d10"
 dependencies = [
- "windows-result",
+ "windows-result 0.2.0",
 "windows-targets 0.52.6",
 ]

+[[package]]
+name = "windows-strings"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b888f919960b42ea4e11c2f408fadb55f78a9f236d5eef084103c8ce52893491"
+dependencies = [
+ "windows-targets 0.53.0",
+]
+
 [[package]]
 name = "windows-sys"
 version = "0.45.0"
@@ -6021,13 +6187,29 @@ dependencies = [
 "windows_aarch64_gnullvm 0.52.6",
 "windows_aarch64_msvc 0.52.6",
 "windows_i686_gnu 0.52.6",
- "windows_i686_gnullvm",
+ "windows_i686_gnullvm 0.52.6",
 "windows_i686_msvc 0.52.6",
 "windows_x86_64_gnu 0.52.6",
 "windows_x86_64_gnullvm 0.52.6",
 "windows_x86_64_msvc 0.52.6",
 ]

+[[package]]
+name = "windows-targets"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b1e4c7e8ceaaf9cb7d7507c974735728ab453b67ef8f18febdd7c11fe59dca8b"
+dependencies = [
+ "windows_aarch64_gnullvm 0.53.0",
+ "windows_aarch64_msvc 0.53.0",
+ "windows_i686_gnu 0.53.0",
+ "windows_i686_gnullvm 0.53.0",
+ "windows_i686_msvc 0.53.0",
+ "windows_x86_64_gnu 0.53.0",
+ "windows_x86_64_gnullvm 0.53.0",
+ "windows_x86_64_msvc 0.53.0",
+]
+
 [[package]]
 name = "windows-version"
 version = "0.1.1"
@@ -6055,6 +6237,12 @@ version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "32a4622180e7a0ec044bb555404c800bc9fd9ec262ec147edd5989ccd0c02cd3"

+[[package]]
+name = "windows_aarch64_gnullvm"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "86b8d5f90ddd19cb4a147a5fa63ca848db3df085e25fee3cc10b39b6eebae764"
+
 [[package]]
 name = "windows_aarch64_msvc"
 version = "0.42.2"
@@ -6073,6 +6261,12 @@ version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "09ec2a7bb152e2252b53fa7803150007879548bc709c039df7627cabbd05d469"

+[[package]]
+name = "windows_aarch64_msvc"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c7651a1f62a11b8cbd5e0d42526e55f2c99886c77e007179efff86c2b137e66c"
+
 [[package]]
 name = "windows_i686_gnu"
 version = "0.42.2"
@@ -6091,12 +6285,24 @@ version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8e9b5ad5ab802e97eb8e295ac6720e509ee4c243f69d781394014ebfe8bbfa0b"

+[[package]]
+name = "windows_i686_gnu"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c1dc67659d35f387f5f6c479dc4e28f1d4bb90ddd1a5d3da2e5d97b42d6272c3"
+
 [[package]]
 name = "windows_i686_gnullvm"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0eee52d38c090b3caa76c563b86c3a4bd71ef1a819287c19d586d7334ae8ed66"

+[[package]]
+name = "windows_i686_gnullvm"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9ce6ccbdedbf6d6354471319e781c0dfef054c81fbc7cf83f338a4296c0cae11"
+
 [[package]]
 name = "windows_i686_msvc"
 version = "0.42.2"
@@ -6115,6 +6321,12 @@ version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "240948bc05c5e7c6dabba28bf89d89ffce3e303022809e73deaefe4f6ec56c66"

+[[package]]
+name = "windows_i686_msvc"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "581fee95406bb13382d2f65cd4a908ca7b1e4c2f1917f143ba16efe98a589b5d"
+
 [[package]]
 name = "windows_x86_64_gnu"
 version = "0.42.2"
@@ -6133,6 +6345,12 @@ version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "147a5c80aabfbf0c7d901cb5895d1de30ef2907eb21fbbab29ca94c5b08b1a78"

+[[package]]
+name = "windows_x86_64_gnu"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2e55b5ac9ea33f2fc1716d1742db15574fd6fc8dadc51caab1c16a3d3b4190ba"
+
 [[package]]
 name = "windows_x86_64_gnullvm"
 version = "0.42.2"
@@ -6151,6 +6369,12 @@ version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "24d5b23dc417412679681396f2b49f3de8c1473deb516bd34410872eff51ed0d"

+[[package]]
+name = "windows_x86_64_gnullvm"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0a6e035dd0599267ce1ee132e51c27dd29437f63325753051e71dd9e42406c57"
+
 [[package]]
 name = "windows_x86_64_msvc"
 version = "0.42.2"
@@ -6169,6 +6393,12 @@ version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "589f6da84c646204747d1270a2a5661ea66ed1cced2631d546fdfb155959f9ec"

+[[package]]
+name = "windows_x86_64_msvc"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "271414315aff87387382ec3d271b52d7ae78726f5d44ac98b4f4030c91880486"
+
 [[package]]
 name = "winnow"
 version = "0.5.40"
@@ -6246,7 +6476,7 @@ dependencies = [
 "webkit2gtk",
 "webkit2gtk-sys",
 "webview2-com",
- "windows",
+ "windows 0.58.0",
 "windows-core 0.58.0",
 "windows-version",
 "x11-dl",
@@ -6449,6 +6679,15 @@ dependencies = [
 "syn 2.0.95",
 ]

+[[package]]
+name = "zune-inflate"
+version = "0.2.54"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "73ab332fe2f6680068f3582b16a24f90ad7096d5d39b974d1c0aff0125116f02"
+dependencies = [
+ "simd-adler32",
+]
+
 [[package]]
 name = "zvariant"
 version = "5.1.0"
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "arnis"
-version = "2.1.3"
+version = "2.2.1"
 edition = "2021"
 description = "Arnis - Generate real life cities in Minecraft"
 homepage = "https://github.com/louis-e/arnis"
@@ -11,6 +11,10 @@ readme = "README.md"
 [profile.release]
 lto = "thin"

+[features]
+default = ["gui"]
+gui = ["dep:tauri", "dep:tauri-plugin-log", "dep:tauri-plugin-shell"]
+
 [build-dependencies]
 tauri-build = "2"

@@ -24,17 +28,22 @@ flate2 = "1.0"
 fnv = "1.0.7"
 fs2 = "0.4"
 geo = "0.29.3"
+image = "0.24"
 indicatif = "0.17.8"
 itertools = "0.14.0"
 log = "0.4.22"
 once_cell = "1.19.0"
 rand = "0.8.5"
+rayon = "1.10.0"
 reqwest = { version = "0.12.7", features = ["blocking", "json"] }
 rfd = "0.15.1"
 semver = "1.0.23"
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
-tauri = "2"
-tauri-plugin-log = { version = "2.2.0" }
-tauri-plugin-shell = "2"
+tauri = { version = "2", optional = true }
+tauri-plugin-log = { version = "2.2.0", optional = true }
+tauri-plugin-shell = { version = "2", optional = true }
 tokio = { version = "1.42.0", features = ["full"] }
+
+[target.'cfg(windows)'.dependencies]
+windows = { version = "0.59.0", features = ["Win32_System_Console"] }
--- a/README.md
+++ b/README.md
@@ -1,5 +1,5 @@
 <p align="center">
-  <img width="456" height="125" src="https://github.com/louis-e/arnis/blob/main/gitassets/logo.png?raw=true">
+  <img width="456" height="125" src="https://github.com/louis-e/arnis/blob/main/gui-src/images/logo.png?raw=true">
 </p>

 # Arnis [![CI Build Status](https://github.com/louis-e/arnis/actions/workflows/ci-build.yml/badge.svg)](https://github.com/louis-e/arnis/actions) [<img alt="GitHub Release" src="https://img.shields.io/github/v/release/louis-e/arnis" />](https://github.com/louis-e/arnis/releases) [<img alt="GitHub Downloads (all assets, all releases" src="https://img.shields.io/github/downloads/louis-e/arnis/total" />](https://github.com/louis-e/arnis/releases)
@@ -22,9 +22,10 @@ Download the [latest release](https://github.com/louis-e/arnis/releases/) or [co
 Choose your area in Arnis using the rectangle tool and select your Minecraft world - then simply click on 'Start Generation'!
 The world will always be generated starting from the Minecraft coordinates 0 0 0 (/tp 0 0 0). This is the top left of your selected area.

-If you choose to select an own world, make sure to generate a new flat world in advance in Minecraft.
+To generate your world with terrain, make sure to enable the corresponding feature in the generation settings.

 Minecraft version 1.16.5 and below is currently not supported, but we are working on it! For the best results, use Minecraft version 1.21.4.
+If you choose to select an own world, be aware that Arnis will overwrite certain areas.

 ## :floppy_disk: How it works
 ![CLI Generation](https://github.com/louis-e/arnis/blob/main/gitassets/cli.gif?raw=true)
@@ -43,7 +44,7 @@ The raw data obtained from the API *[(see FAQ)](#question-faq)* includes each el
 - *Wasn't this written in Python before?*<br>
 Yes! Arnis was initially developed in Python, which benefited from Python's open-source friendliness and ease of readability. This is why we strive for clear, well-documented code in the Rust port of this project to find the right balance. I decided to port the project to Rust to learn more about the language and push the algorithm's performance further. We were nearing the limits of optimization in Python, and Rust's capabilities allow for even better performance and efficiency. The old Python implementation is still available in the python-legacy branch.
 - *Where does the data come from?*<br>
-The geographic data is sourced from OpenStreetMap (OSM)[^1], a free, collaborative mapping project that serves as an open-source alternative to commercial mapping services. The data is accessed via the Overpass API, which queries OSM's database.
+The geographic data is sourced from OpenStreetMap (OSM)[^1], a free, collaborative mapping project that serves as an open-source alternative to commercial mapping services. The data is accessed via the Overpass API, which queries OSM's database. Other services like Google Maps do not provide data like this, which makes OSM perfect for this project.
 - *How does the Minecraft world generation work?*<br>
 The script uses the [fastnbt](https://github.com/owengage/fastnbt) cargo package to interact with Minecraft's world format. This library allows Arnis to manipulate Minecraft region files, enabling the generation of real-world locations. The section 'Processing Pipeline' goes a bit further into the details and steps of the generation process itself.
 - *Where does the name come from?*<br>
@@ -56,6 +57,13 @@ If you're on Windows, please install the [Evergreen Bootstrapper from Microsoft]
 Please use Minecraft version 1.21.4 for the best results. Minecraft version 1.16.5 and below is currently not supported, but we are working on it!
 - *The generation did finish, but there's nothing in the world!*<br>
 Make sure to teleport to the generation starting point (/tp 0 0 0). If there is still nothing, you might need to travel a bit further into the positive X and positive Z direction.
+- *What features are in the world generation settings?*<br>
+**Terrain:** Make sure to enable this feature to generate your world with elevation data included.<br>
+**Winter Mode:** This setting changes the generation style to a snowy theme and adds snow layers to the ground.<br>
+**Scale Factor:** The scale factor determines the size of the generated world.<br>
+**Custom BBOX Input:** This setting allows you to manually input the bounding box coordinates for the area you want to generate.<br>
+**Floodfill-Timeout (Sec):** This setting determines the maximum time the floodfill algorithm is allowed to run before being terminated. Increasing this value may improve the generation of large water areas but may also increase processing time.<br>
+**Ground Height:** This setting determines the base height of the generated world and can be adjusted to create different terrain types.

 ## :memo: ToDo and Known Bugs
 Feel free to choose an item from the To-Do or Known Bugs list, or bring your own idea to the table. Bug reports shall be raised as a Github issue. Contributions are highly welcome and appreciated!
@@ -67,18 +75,18 @@ Feel free to choose an item from the To-Do or Known Bugs list, or bring your own
 - [ ] Mapping real coordinates to Minecraft coordinates (https://github.com/louis-e/arnis/issues/29)
 - [ ] Add interior to buildings
 - [ ] Implement house roof types
- [ ] Evaluate and implement elevation (https://github.com/louis-e/arnis/issues/66)
 - [ ] Add support for inner attribute in multipolygons and multipolygon elements other than buildings
- [ ] Fix Github Action Workflow for releasing MacOS Binary
- [ ] Evaluate and implement faster region saving
 - [ ] Refactor bridges implementation
- [ ] Refactor railway implementation
 - [ ] Better code documentation
 - [ ] Refactor fountain structure implementation
 - [ ] Luanti Support (https://github.com/louis-e/arnis/issues/120)
 - [ ] Minecraft Bedrock Edition Support (https://github.com/louis-e/arnis/issues/148)
+- [x] Evaluate and implement elevation (https://github.com/louis-e/arnis/issues/66)
+- [x] Refactor railway implementation
+- [x] Evaluate and implement faster region saving
 - [x] Support multipolygons (https://github.com/louis-e/arnis/issues/112, https://github.com/louis-e/arnis/issues/114)
 - [x] Memory optimization
+- [x] Fix Github Action Workflow for releasing MacOS Binary
 - [x] Design and implement a GUI
 - [x] Automatic new world creation instead of using an existing world
 - [x] Fix faulty empty chunks ([https://github.com/owengage/fastnbt/issues/120](https://github.com/owengage/fastnbt/issues/120)) (workaround found)
@@ -95,7 +103,7 @@ Feel free to choose an item from the To-Do or Known Bugs list, or bring your own
 #### How to contribute
 This project is open source and welcomes contributions from everyone! Whether you're interested in fixing bugs, improving performance, adding new features, or enhancing documentation, your input is valuable. Simply fork the repository, make your changes, and submit a pull request. We encourage discussions and suggestions to ensure the project remains modular, optimized, and easy to use for the community. You can use the parameter --debug to get a more detailed output of the processed values, which can be helpful for debugging and development. Contributions of all levels are appreciated, and your efforts help improve this tool for everyone.

-Build and run it using: ```cargo run --release -- --path="C:/YOUR_PATH/.minecraft/saves/worldname" --bbox="min_lng,min_lat,max_lng,max_lat"```<br>
+Build and run it using: ```cargo run --release --no-default-features -- --path="C:/YOUR_PATH/.minecraft/saves/worldname" --bbox="min_lng,min_lat,max_lng,max_lat"```<br>
 For the GUI: ```cargo run --release```<br>

 After your pull request was merged, I will take care of regularly creating update releases which will include your changes.
@@ -111,11 +119,25 @@ After your pull request was merged, I will take care of regularly creating updat
 </a>

 ## :copyright: License Information
-This project is licensed under the Apache 2.0 License.[^3]
-This GitHub repository is the only official source for the Arnis project. Websites or distributions that claim to be official sources or use the Arnis name, logo, or branding without explicit permission are not allowed and violate the terms of the Apache 2.0 License.
-
 Copyright (c) 2022-2025 Louis Erbkamm (louis-e)

+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.[^3]
+
+Download Arnis only from the official source (https://github.com/louis-e/arnis/). Every other website providing a download and claiming to be affiliated with the project is unofficial and may be malicious.
+
+The logo was made by @nxfx21.
+
+
 [^1]: https://en.wikipedia.org/wiki/OpenStreetMap

 [^2]: https://en.wikipedia.org/wiki/Arnis,_Germany
--- a/build.rs
+++ b/build.rs
@@ -1,3 +1,4 @@
 fn main() {
+    #[cfg(feature = "gui")]
    tauri_build::build()
 }
--- a/gitassets/logo.png
+++ b/gitassets/logo.png
--- a/gui-src/css/styles.css
+++ b/gui-src/css/styles.css
@@ -186,6 +186,7 @@ button:hover {
  button {
    color: #ffffff;
    background-color: #0f0f0f98;
+    border-style: inherit;
  }
  button:active {
    background-color: #0f0f0f69;
@@ -202,39 +203,6 @@ button:hover {
  width: 100%;
 }

-.tooltip .tooltiptext {
-  visibility: hidden;
-  width: 90%;
-  background-color: #808080;
-  color: #fff;
-  text-align: center;
-  padding: 5px 0;
-  border-radius: 6px;
-
-  position: absolute;
-  z-index: 1;
-  bottom: -100%;
-  left: 5%;
-  opacity: 0;
-  transition: opacity 0.3s;
-}
-
-.tooltip .tooltiptext::after {
-  content: "";
-  position: absolute;
-  top: -10px;
-  left: 50%;
-  margin-left: -5px;
-  border-width: 5px;
-  border-style: solid;
-  border-color: transparent transparent #808080 transparent;
-}
-
-.tooltip:hover .tooltiptext {
-  visibility: visible;
-  opacity: 1;
-}
-
 .controls-box button {
  width: 100%;
 }
@@ -275,6 +243,14 @@ button:hover {
  color: #ffffff;
 }

+#terrain-toggle {
+  accent-color: #fecc44;
+}
+
+.terrain-toggle-container, .scale-slider-container {
+  margin: 15px 0;
+}
+
 #winter-toggle {
  accent-color: #fecc44;
 }
@@ -356,3 +332,24 @@ button:hover {
  content: "⚙️";
  font-size: 18px;
 }
+
+/* Logo Animation */
+#arnis-logo {
+  width: 35%;
+  height: auto;
+  opacity: 0;
+  transform: scale(0);
+  animation: zoomInLogo 1s ease-out forwards;
+}
+
+/* Keyframe Animation */
+@keyframes zoomInLogo {
+  0% {
+    transform: scale(0);
+    opacity: 0;
+  }
+  100% {
+    transform: scale(1);
+    opacity: 1;
+  }
+}
--- a/gui-src/images/logo.png
+++ b/gui-src/images/logo.png
--- a/gui-src/index.html
+++ b/gui-src/index.html
@@ -7,13 +7,14 @@
  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
  <title>Arnis</title>
  <script type="module" src="./js/main.js" defer></script>
+  <script type="module" src="./js/license.js" defer></script>
 </head>

 <body>
  <main class="container">
    <div class="row">
      <a href="https://github.com/louis-e/arnis" target="_blank">
-        <img src="./images/logo.png" class="logo arnis" alt="Arnis Logo" />
+        <img src="./images/logo.png" id="arnis-logo" class="logo arnis" alt="Arnis Logo" style="width: 35%; height: auto;" />
      </a>
    </div>

@@ -37,16 +38,13 @@

          <!-- Updated Tooltip Structure -->
          <div class="tooltip" style="width: 100%;">
-            <button type="button" onclick="openWorldPicker()" style="padding: 10px; line-height: 1.2; width: 100%;" data-localize="choose_world">
-              Choose World
+            <button type="button" onclick="openWorldPicker()" style="padding: 10px; line-height: 1.2; width: 100%;">
+              <span id="choose_world">Choose World</span>
              <br>
              <span id="selected-world" style="font-size: 0.8em; color: #fecc44; display: block; margin-top: 4px;" data-localize="no_world_selected">
                No world selected
              </span>
            </button>
-            <span class="tooltiptext" style="font-size: 0.8em; line-height: 1.2;">
-              Please select a Minecraft world that can be overwritten, as the generation process will replace existing structures in the chosen world!
-            </span>
          </div>
          
          <div class="button-container">
@@ -88,6 +86,12 @@
        <span class="close-button" onclick="closeSettings()">&times;</span>
        <h2 data-localize="customization_settings">Customization Settings</h2>

+        <!-- Terrain Toggle Button -->
+        <div class="terrain-toggle-container">
+          <label for="terrain-toggle" data-localize="terrain">Terrain:</label>
+          <input type="checkbox" id="terrain-toggle" name="terrain-toggle">
+        </div>
+
        <!-- Winter Mode Toggle Button -->
        <div class="winter-toggle-container">
          <label for="winter-toggle" data-localize="winter_mode">Winter Mode:</label>
@@ -104,7 +108,7 @@
        <!-- Bounding Box Input -->
        <div class="bbox-input-container">
          <label for="bbox-coords" data-localize="custom_bounding_box">Custom Bounding Box:</label>
-          <input type="text" id="bbox-coords" name="bbox-coords" maxlength="55" style="width: 280px;" autocomplete="one-time-code" placeholder="Format: lat,lng,lat,lng">
+          <input type="text" id="bbox-coords" name="bbox-coords" maxlength="55" style="width: 280px;" placeholder="Format: lat,lng,lat,lng">
        </div>

        <!-- Floodfill Timeout Input -->
@@ -118,16 +122,30 @@
          <label for="ground-level" data-localize="ground_level">Ground Level:</label>
          <input type="number" id="ground-level" name="ground-level" min="-64" max="290" value="-62" style="width: 100px;" placeholder="Ground Level">
        </div>
+
+        <!-- License and Credits Button -->
+        <button type="button" id="license-button" class="license-button" onclick="openLicense()" data-localize="license_and_credits">License and Credits</button>
+      </div>
+    </div>
+
+    <!-- License Modal -->
+    <div id="license-modal" class="modal" style="display: none;">
+      <div class="modal-content">
+        <span class="close-button" onclick="closeLicense()">&times;</span>
+        <h2 data-localize="license_and_credits">License and Credits</h2>
+        <div id="license-content" style="overflow-y: auto; max-height: 300px; font-size: 0.85em; line-height: 1.3; padding: 10px; border: 1px solid #ccc; border-radius: 4px;">
+          Loading...
+        </div>
      </div>
    </div>

    <!-- Footer -->
    <footer class="footer">
      <a href="https://github.com/louis-e/arnis" target="_blank" class="footer-link" data-localize="footer_text">
-        © <span id="current-year"></span> Arnis v<span id="version-placeholder">x.x.x</span> by louis-e
+        © {year} Arnis v{version} by louis-e
      </a>
    </footer>
  </main>
 </body>

-</html>
+</html>
--- a/gui-src/js/bbox.js
+++ b/gui-src/js/bbox.js
@@ -322,7 +322,7 @@ function addLayer(layer, name, title, zIndex, on) {
    }
    link.innerHTML = name;
    link.title = title;
-    link.onclick = function(e) {
+    link.onclick = function (e) {
        e.preventDefault();
        e.stopPropagation();

@@ -456,13 +456,19 @@ $(document).ready(function () {
    **  on top of your DOM
    **
    */
-    $('input[type="textarea"]').on('click', function (evt) { this.select() });

-    // Have to init the projection input box as it is used to format the initial values
+    // init the projection input box as it is used to format the initial values
+    $('input[type="textarea"]').on('click', function (evt) { this.select() });
    $("#projection").val(currentproj);

-    L.mapbox.accessToken = 'pk.eyJ1IjoiY3Vnb3MiLCJhIjoiY2p4Nm43MzA3MDFmZDQwcGxsMjB4Z3hnNiJ9.SQbnMASwdqZe6G4n6OMvVw';
-    map = L.mapbox.map('map').setView([50.114768, 8.687322], 4).addLayer(L.mapbox.styleLayer('mapbox://styles/mapbox/streets-v11'));
+    // Initialize map with OpenStreetMap tiles
+    map = L.map('map').setView([50.114768, 8.687322], 4);
+
+    // Add OpenStreetMap tile layer (free to use with attribution)
+    L.tileLayer('https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', {
+        attribution: '&copy; Map data from <a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a>',
+        maxZoom: 19
+    }).addTo(map);

    rsidebar = L.control.sidebar('rsidebar', {
        position: 'right',
@@ -498,14 +504,25 @@ $(document).ready(function () {

    // Initialize the FeatureGroup to store editable layers
    drawnItems = new L.FeatureGroup();
-    map.addLayer(drawnItems);
-
-    // Initialize the draw control and pass it the FeatureGroup of editable layers
+    map.addLayer(drawnItems);    // Initialize the draw control and pass it the FeatureGroup of editable layers
    drawControl = new L.Control.Draw({
        edit: {
            featureGroup: drawnItems
        },
        draw: {
+            rectangle: {
+                shapeOptions: {
+                    color: '#fe57a1',
+                    opacity: 0.6,
+                    weight: 3,
+                    fillColor: '#fe57a1',
+                    fillOpacity: 0.1,
+                    dashArray: '10, 10',
+                    lineCap: 'round',
+                    lineJoin: 'round'
+                },
+                repeatMode: false
+            },
            polyline: false,
            polygon: false,
            circle: false,
@@ -513,7 +530,6 @@ $(document).ready(function () {
        }
    });
    map.addControl(drawControl);
-
    /*
    **
    **  create bounds layer
@@ -523,17 +539,22 @@ $(document).ready(function () {
    **
    */
    startBounds = new L.LatLngBounds([0.0, 0.0], [0.0, 0.0]);
-    var bounds = new L.Rectangle(startBounds,
-        {
-            fill: false,
-            opacity: 1.0,
-            color: '#000'
-        }
-    );
+    var bounds = new L.Rectangle(startBounds, {
+        color: '#3778d4',
+        opacity: 1.0,
+        weight: 3,
+        fill: '#3778d4',
+        lineCap: 'round',
+        lineJoin: 'round'
+    });
+
    bounds.on('bounds-set', function (e) {
-        // move it to the end of the parent
-        var parent = e.target._renderer._container.parentElement;
-        $(parent).append(e.target._renderer._container);
+        // move it to the end of the parent if renderer exists
+        if (e.target._renderer && e.target._renderer._container) {
+            var parent = e.target._renderer._container.parentElement;
+            $(parent).append(e.target._renderer._container);
+        }
+
        // Set the hash
        var southwest = this.getBounds().getSouthWest();
        var northeast = this.getBounds().getNorthEast();
@@ -543,8 +564,21 @@ $(document).ready(function () {
        var ymax = northeast.lat.toFixed(6);
        location.hash = ymin + ',' + xmin + ',' + ymax + ',' + xmax;
    });
-    map.addLayer(bounds)
+    map.addLayer(bounds);
+
    map.on('draw:created', function (e) {
+        // Check if it's a rectangle and set proper styles before adding it to the layer
+        if (e.layerType === 'rectangle') {
+            e.layer.setStyle({
+                color: '#3778d4',
+                opacity: 1.0,
+                weight: 3,
+                fill: '#3778d4',
+                lineCap: 'round',
+                lineJoin: 'round'
+            });
+        }
+
        drawnItems.addLayer(e.layer);
        bounds.setBounds(drawnItems.getBounds())
        $('#boxbounds').text(formatBounds(bounds.getBounds(), '4326'));
@@ -629,7 +663,14 @@ $(document).ready(function () {
            var splitBounds = initialBBox.split(',');
            startBounds = new L.LatLngBounds([splitBounds[0], splitBounds[1]],
                [splitBounds[2], splitBounds[3]]);
-            var lyr = new L.Rectangle(startBounds);
+            var lyr = new L.Rectangle(startBounds, {
+                color: '#3778d4',
+                opacity: 1.0,
+                weight: 3,
+                fill: '#3778d4',
+                lineCap: 'round',
+                lineJoin: 'round'
+            });
            var evt = {
                layer: lyr,
                layerType: "polygon",
@@ -654,4 +695,4 @@ $(document).ready(function () {
 function notifyBboxUpdate() {
    const bboxText = document.getElementById('boxbounds').textContent;
    window.parent.postMessage({ bboxText: bboxText }, '*');
-}
+}
--- a/gui-src/js/license.js
+++ b/gui-src/js/license.js
@@ -0,0 +1,81 @@
+export const licenseText = `
+<p><b>Contributors:</b></p>
+louis-e (Louis Erbkamm)<br>
+scd31<br>
+amir16yp<br>
+vfosnar<br>
+TheComputerGuy96<br>
+zer0-dev<br>
+RedAuburn<br>
+daniil2327<br>
+benjamin051000<br>
+
+<p>For a full list of contributors, please refer to the <a href="https://github.com/louis-e/arnis" style="color: inherit;" target="_blank">Github page</a>. Logo made by nxfx21. Map data from <a href="https://www.openstreetmap.org/copyright" style="color: inherit;" target="_blank">OpenStreetMap</a>.</p>
+
+<p style="color: #ff7070;"><b>Download Arnis only from the official source:</b> <a href="https://github.com/louis-e/arnis" style="color: inherit;" target="_blank">https://github.com/louis-e/arnis/</a>. Every other website providing a download and claiming to be affiliated with the project is unofficial and may be malicious.</p>
+
+<p><b>License:</b></p>
+<pre style="white-space: pre-wrap; font-family: inherit;">
+Apache License
+Version 2.0, January 2004
+http://www.apache.org/licenses/
+
+TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+1. Definitions.
+
+"License" shall mean the terms and conditions for use, reproduction,and distribution as defined by Sections 1 through 9 of this document.
+
+"Licensor" shall mean the copyright owner or entity authorized bythe copyright owner that is granting the License.
+
+"Legal Entity" shall mean the union of the acting entity and allother entities that control, are controlled by, or are under commoncontrol with that entity. For the purposes of this definition,"control" means (i) the power, direct or indirect, to cause thedirection or management of such entity, whether by contract orotherwise, or (ii) ownership of fifty percent (50%) or more of theoutstanding shares, or (iii) beneficial ownership of such entity.
+
+"You" (or "Your") shall mean an individual or Legal Entityexercising permissions granted by this License.
+
+"Source" form shall mean the preferred form for making modifications,including but not limited to software source code, documentationsource, and configuration files.
+
+"Object" form shall mean any form resulting from mechanicaltransformation or translation of a Source form, including butnot limited to compiled object code, generated documentation,and conversions to other media types.
+
+"Work" shall mean the work of authorship, whether in Source orObject form, made available under the License, as indicated by acopyright notice that is included in or attached to the work(an example is provided in the Appendix below).
+
+"Derivative Works" shall mean any work, whether in Source or Objectform, that is based on (or derived from) the Work and for which theeditorial revisions, annotations, elaborations, or other modificationsrepresent, as a whole, an original work of authorship. For the purposesof this License, Derivative Works shall not include works that remainseparable from, or merely link (or bind by name) to the interfaces of,the Work and Derivative Works thereof.
+
+"Contribution" shall mean any work of authorship, includingthe original version of the Work and any modifications or additionsto that Work or Derivative Works thereof, that is intentionallysubmitted to Licensor for inclusion in the Work by the copyright owneror by an individual or Legal Entity authorized to submit on behalf ofthe copyright owner. For the purposes of this definition, "submitted"means any form of electronic, verbal, or written communication sentto the Licensor or its representatives, including but not limited tocommunication on electronic mailing lists, source code control systems,and issue tracking systems that are managed by, or on behalf of, theLicensor for the purpose of discussing and improving the Work, butexcluding communication that is conspicuously marked or otherwisedesignated in writing by the copyright owner as "Not a Contribution."
+
+"Contributor" shall mean Licensor and any individual or Legal Entityon behalf of whom a Contribution has been received by Licensor andsubsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions ofthis License, each Contributor hereby grants to You a perpetual,worldwide, non-exclusive, no-charge, royalty-free, irrevocablecopyright license to reproduce, prepare Derivative Works of,publicly display, publicly perform, sublicense, and distribute theWork and such Derivative Works in Source or Object form.
+
+   3. Grant of Patent License. Subject to the terms and conditions ofthis License, each Contributor hereby grants to You a perpetual,worldwide, non-exclusive, no-charge, royalty-free, irrevocable(except as stated in this section) patent license to make, have made,use, offer to sell, sell, import, and otherwise transfer the Work,where such license applies only to those patent claims licensableby such Contributor that are necessarily infringed by theirContribution(s) alone or by combination of their Contribution(s)with the Work to which such Contribution(s) was submitted. If Youinstitute patent litigation against any entity (including across-claim or counterclaim in a lawsuit) alleging that the Workor a Contribution incorporated within the Work constitutes director contributory patent infringement, then any patent licensesgranted to You under this License for that Work shall terminateas of the date such litigation is filed.
+
+   4. Redistribution. You may reproduce and distribute copies of theWork or Derivative Works thereof in any medium, with or withoutmodifications, and in Source or Object form, provided that Youmeet the following conditions:
+
+(a) You must give any other recipients of the Work or    Derivative Works a copy of this License; and
+
+(b) You must cause any modified files to carry prominent notices    stating that You changed the files; and
+
+(c) You must retain, in the Source form of any Derivative Works    that You distribute, all copyright, patent, trademark, and    attribution notices from the Source form of the Work,    excluding those notices that do not pertain to any part of    the Derivative Works; and
+
+(d) If the Work includes a "NOTICE" text file as part of its    distribution, then any Derivative Works that You distribute must    include a readable copy of the attribution notices contained    within such NOTICE file, excluding those notices that do not    pertain to any part of the Derivative Works, in at least one    of the following places: within a NOTICE text file distributed    as part of the Derivative Works; within the Source form or    documentation, if provided along with the Derivative Works; or,    within a display generated by the Derivative Works, if and    wherever such third-party notices normally appear. The contents    of the NOTICE file are for informational purposes only and    do not modify the License. You may add Your own attribution    notices within Derivative Works that You distribute, alongside    or as an addendum to the NOTICE text from the Work, provided    that such additional attribution notices cannot be construed    as modifying the License.
+
+You may add Your own copyright statement to Your modifications andmay provide additional or different license terms and conditionsfor use, reproduction, or distribution of Your modifications, orfor any such Derivative Works as a whole, provided Your use,reproduction, and distribution of the Work otherwise complies withthe conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,any Contribution intentionally submitted for inclusion in the Workby You to the Licensor shall be under the terms and conditions ofthis License, without any additional terms or conditions.Notwithstanding the above, nothing herein shall supersede or modifythe terms of any separate license agreement you may have executedwith Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the tradenames, trademarks, service marks, or product names of the Licensor,except as required for reasonable and customary use in describing theorigin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law oragreed to in writing, Licensor provides the Work (and eachContributor provides its Contributions) on an "AS IS" BASIS,WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express orimplied, including, without limitation, any warranties or conditionsof TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR APARTICULAR PURPOSE. You are solely responsible for determining theappropriateness of using or redistributing the Work and assume anyrisks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,whether in tort (including negligence), contract, or otherwise,unless required by applicable law (such as deliberate and grosslynegligent acts) or agreed to in writing, shall any Contributor beliable to You for damages, including any direct, indirect, special,incidental, or consequential damages of any character arising as aresult of this License or out of the use or inability to use theWork (including but not limited to damages for loss of goodwill,work stoppage, computer failure or malfunction, or any and allother commercial damages or losses), even if such Contributorhas been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributingthe Work or Derivative Works thereof, You may choose to offer,and charge a fee for, acceptance of support, warranty, indemnity,or other liability obligations and/or rights consistent with thisLicense. However, in accepting such obligations, You may act onlyon Your own behalf and on Your sole responsibility, not on behalfof any other Contributor, and only if You agree to indemnify,defend, and hold each Contributor harmless for any liabilityincurred by, or claims asserted against, such Contributor by reasonof your accepting any such warranty or additional liability.
+
+END OF TERMS AND CONDITIONS
+
+Copyright ${new Date().getFullYear()} Louis Erbkamm
+
+Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License athttp://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS,WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions andlimitations under the License.
+</pre>
+`;
--- a/gui-src/js/main.js
+++ b/gui-src/js/main.js
@@ -1,4 +1,15 @@
-const { invoke } = window.__TAURI__.core;
+import { licenseText } from './license.js';
+
+let invoke;
+if (window.__TAURI__) {
+  invoke = window.__TAURI__.core.invoke;
+} else {
+  function dummyFunc() {}
+  window.__TAURI__ = { event: { listen: dummyFunc } };
+  invoke = dummyFunc;
+}
+
+const DEFAULT_LOCALE_PATH = `./locales/en.json`;

 // Initialize elements and start the demo progress
 window.addEventListener("DOMContentLoaded", async () => {
@@ -9,151 +20,123 @@ window.addEventListener("DOMContentLoaded", async () => {
  initSettings();
  initWorldPicker();
  handleBboxInput();
-  const language = detectLanguage();
-  const localization = await loadLocalization(language);
+  const localization = await getLocalization();
  await applyLocalization(localization);
  initFooter();
  await checkForUpdates();
 });

-async function loadLocalization(language) {
-  const response = await fetch(`./locales/${language}.json`);
+/**
+ * Checks if a JSON response is invalid or falls back to HTML
+ * @param {Response} response - The fetch response object
+ * @returns {boolean} True if the response is invalid JSON
+ */
+function invalidJSON(response) {
+  // Workaround for Tauri always falling back to index.html for asset loading
+  return !response.ok || response.headers.get("Content-Type") === "text/html";
+}
+
+/**
+ * Fetches and returns localization data based on user's language
+ * Falls back to English if requested language is not available
+ * @returns {Promise<Object>} The localization JSON object
+ */
+async function getLocalization() {
+  const lang = navigator.language;
+  let response = await fetch(`./locales/${lang}.json`);
+
+  // Try with only first part of language code
+  if (invalidJSON(response)) {
+    response = await fetch(`./locales/${lang.split('-')[0]}.json`);
+
+    // Fallback to default English localization
+    if (invalidJSON(response)) {
+      response = await fetch(DEFAULT_LOCALE_PATH);
+    }
+  }
+
  const localization = await response.json();
  return localization;
 }

+/**
+ * Updates an HTML element with localized text
+ * @param {Object} json - Localization data
+ * @param {Object} elementObject - Object containing element or selector
+ * @param {string} localizedStringKey - Key for the localized string
+ */
+async function localizeElement(json, elementObject, localizedStringKey) {
+  const element =
+    (!elementObject.element || elementObject.element === "")
+    ? document.querySelector(elementObject.selector) : elementObject.element;
+  const attribute = localizedStringKey.startsWith("placeholder_") ? "placeholder" : "textContent";
+
+  if (element) {
+    if (localizedStringKey in json) {
+      element[attribute] = json[localizedStringKey];
+    } else {
+      // Fallback to default (English) string
+      const response = await fetch(DEFAULT_LOCALE_PATH);
+      const defaultJson = await response.json();
+      element[attribute] = defaultJson[localizedStringKey];
+    }
+  }
+}
+
 async function applyLocalization(localization) {
-  const selectLocationElement = document.querySelector("h2[data-localize='select_location']");
-  if (selectLocationElement) {
-    selectLocationElement.textContent = localization.select_location;
-  }
+  const localizationElements = {
+    "h2[data-localize='select_location']": "select_location",
+    "#bbox-text": "zoom_in_and_choose",
+    "h2[data-localize='select_world']": "select_world",
+    "span[id='choose_world']": "choose_world",
+    "#selected-world": "no_world_selected",
+    "#start-button": "start_generation",
+    "h2[data-localize='progress']": "progress",
+    "h2[data-localize='choose_world_modal_title']": "choose_world_modal_title",
+    "button[data-localize='select_existing_world']": "select_existing_world",
+    "button[data-localize='generate_new_world']": "generate_new_world",
+    "h2[data-localize='customization_settings']": "customization_settings",
+    "label[data-localize='winter_mode']": "winter_mode",
+    "label[data-localize='world_scale']": "world_scale",
+    "label[data-localize='custom_bounding_box']": "custom_bounding_box",
+    "label[data-localize='floodfill_timeout']": "floodfill_timeout",
+    "label[data-localize='ground_level']": "ground_level",
+    ".footer-link": "footer_text",
+    "button[data-localize='license_and_credits']": "license_and_credits",
+    "h2[data-localize='license_and_credits']": "license_and_credits",

-  const bboxTextElement = document.getElementById("bbox-text");
-  if (bboxTextElement) {
-    bboxTextElement.textContent = localization.zoom_in_and_choose;
-  }
+    // Placeholder strings
+    "input[id='bbox-coords']": "placeholder_bbox",
+    "input[id='floodfill-timeout']": "placeholder_floodfill",
+    "input[id='ground-level']": "placeholder_ground"
+  };

-  const selectWorldElement = document.querySelector("h2[data-localize='select_world']");
-  if (selectWorldElement) {
-    selectWorldElement.textContent = localization.select_world;
-  }
-
-  const chooseWorldButton = document.querySelector("button[data-localize='choose_world']");
-  if (chooseWorldButton) {
-    chooseWorldButton.firstChild.textContent = localization.choose_world;
-  }
-
-  const selectedWorldElement = document.getElementById("selected-world");
-  if (selectedWorldElement) {
-    selectedWorldElement.textContent = localization.no_world_selected;
-  }
-
-  const startButtonElement = document.getElementById("start-button");
-  if (startButtonElement) {
-    startButtonElement.textContent = localization.start_generation;
-  }
-
-  const progressElement = document.querySelector("h2[data-localize='progress']");
-  if (progressElement) {
-    progressElement.textContent = localization.progress;
-  }
-
-  const chooseWorldModalTitle = document.querySelector("h2[data-localize='choose_world_modal_title']");
-  if (chooseWorldModalTitle) {
-    chooseWorldModalTitle.textContent = localization.choose_world_modal_title;
-  }
-
-  const selectExistingWorldButton = document.querySelector("button[data-localize='select_existing_world']");
-  if (selectExistingWorldButton) {
-    selectExistingWorldButton.textContent = localization.select_existing_world;
-  }
-
-  const generateNewWorldButton = document.querySelector("button[data-localize='generate_new_world']");
-  if (generateNewWorldButton) {
-    generateNewWorldButton.textContent = localization.generate_new_world;
-  }
-
-  const customizationSettingsTitle = document.querySelector("h2[data-localize='customization_settings']");
-  if (customizationSettingsTitle) {
-    customizationSettingsTitle.textContent = localization.customization_settings;
-  }
-
-  const winterModeLabel = document.querySelector("label[data-localize='winter_mode']");
-  if (winterModeLabel) {
-    winterModeLabel.textContent = localization.winter_mode;
-  }
-
-  const worldScaleLabel = document.querySelector("label[data-localize='world_scale']");
-  if (worldScaleLabel) {
-    worldScaleLabel.textContent = localization.world_scale;
-  }
-
-  const customBoundingBoxLabel = document.querySelector("label[data-localize='custom_bounding_box']");
-  if (customBoundingBoxLabel) {
-    customBoundingBoxLabel.textContent = localization.custom_bounding_box;
-  }
-
-  const floodfillTimeoutLabel = document.querySelector("label[data-localize='floodfill_timeout']");
-  if (floodfillTimeoutLabel) {
-    floodfillTimeoutLabel.textContent = localization.floodfill_timeout;
-  }
-
-  const groundLevelLabel = document.querySelector("label[data-localize='ground_level']");
-  if (groundLevelLabel) {
-    groundLevelLabel.textContent = localization.ground_level;
-  }
-
-  const footerLinkElement = document.querySelector(".footer-link");
-  if (footerLinkElement) {
-    footerLinkElement.innerHTML = localization.footer_text.replace("{year}", '<span id="current-year"></span>').replace("{version}", '<span id="version-placeholder"></span>');
+  for (const selector in localizationElements) {
+    localizeElement(localization, { selector: selector }, localizationElements[selector]);
  }

  // Update error messages
  window.localization = localization;
 }

-function detectLanguage() {
-  const lang = navigator.language || navigator.userLanguage;
-  const langCode = lang.split('-')[0];
-  switch (langCode) {
-    case 'es':
-      return 'es';
-    case 'ru':
-      return 'ru';
-    case 'de':
-      return 'de';
-    case 'zh':
-      return 'zh';
-    case 'uk':
-      return 'ua';
-    case 'pl':
-      return 'pl';
-    case 'ko':
-      return 'ko';
-    case 'sv':
-      return 'sv';
-    default:
-      return 'en';
-  }
-}
-
 // Function to initialize the footer with the current year and version
 async function initFooter() {
  const currentYear = new Date().getFullYear();
-  const currentYearElement = document.getElementById("current-year");
-  if (currentYearElement) {
-    currentYearElement.textContent = currentYear;
-  }
+  let version = "x.x.x";

  try {
-    const version = await invoke('gui_get_version');
-    const versionPlaceholder = document.getElementById("version-placeholder");
-    if (versionPlaceholder) {
-      versionPlaceholder.textContent = version;
-    }
+    version = await invoke('gui_get_version');
  } catch (error) {
    console.error("Failed to fetch version:", error);
  }
+
+  const footerElement = document.querySelector(".footer-link");
+  if (footerElement) {
+    footerElement.textContent =
+      footerElement.textContent
+        .replace("{year}", currentYear)
+        .replace("{version}", version);
+  }
 }

 // Function to check for updates and display a notification if available
@@ -171,7 +154,7 @@ async function checkForUpdates() {
      updateMessage.style.display = "block";
      updateMessage.style.textDecoration = "none";

-      updateMessage.textContent = window.localization.new_version_available;
+      localizeElement(window.localization, { element: updateMessage }, "new_version_available");
      footer.style.marginTop = "15px";
      footer.appendChild(updateMessage);
    }
@@ -247,6 +230,29 @@ function initSettings() {
  slider.addEventListener("input", () => {
    sliderValue.textContent = parseFloat(slider.value).toFixed(2);
  });
+
+
+  /// License and Credits
+  function openLicense() {
+    const licenseModal = document.getElementById("license-modal");
+    const licenseContent = document.getElementById("license-content");
+
+    // Render the license text as HTML
+    licenseContent.innerHTML = licenseText;
+
+    // Show the modal
+    licenseModal.style.display = "flex";
+    licenseModal.style.justifyContent = "center";
+    licenseModal.style.alignItems = "center";
+  }
+
+  function closeLicense() {
+    const licenseModal = document.getElementById("license-modal");
+    licenseModal.style.display = "none";
+  }
+
+  window.openLicense = openLicense;
+  window.closeLicense = closeLicense;
 }

 function initWorldPicker() {
@@ -269,7 +275,11 @@ function initWorldPicker() {
  window.closeWorldPicker = closeWorldPicker;
 }

-// Function to validate and handle bbox input
+/**
+ * Validates and processes bounding box coordinates input
+ * Supports both comma and space-separated formats
+ * Updates the map display when valid coordinates are entered
+ */
 function handleBboxInput() {
  const inputBox = document.getElementById("bbox-coords");
  const bboxInfo = document.getElementById("bbox-info");
@@ -307,25 +317,38 @@ function handleBboxInput() {
              const bboxText = `${lat1} ${lng1} ${lat2} ${lng2}`;
              window.dispatchEvent(new MessageEvent('message', { data: { bboxText } }));

+              // Show custom bbox on the map
+              let map_container = document.querySelector('.map-container');
+              map_container.setAttribute('src', `maps.html#${lat1},${lng1},${lat2},${lng2}`);
+              map_container.contentWindow.location.reload();
+
              // Update the info text
-              bboxInfo.textContent = window.localization.custom_selection_confirmed;
+              localizeElement(window.localization, { element: bboxInfo }, "custom_selection_confirmed");
              bboxInfo.style.color = "#7bd864";
          } else {
              // Valid numbers but invalid order or range
-              bboxInfo.textContent = window.localization.error_coordinates_out_of_range;
+              localizeElement(window.localization, { element: bboxInfo }, "error_coordinates_out_of_range");
              bboxInfo.style.color = "#fecc44";
              selectedBBox = "";
          }
      } else {
          // Input doesn't match the required format
-          bboxInfo.textContent = window.localization.invalid_format;
+          localizeElement(window.localization, { element: bboxInfo }, "invalid_format");
          bboxInfo.style.color = "#fecc44";
          selectedBBox = "";
      }
  });
 }

-// Function to calculate the bounding box "size" in square meters based on latitude and longitude
+/**
+ * Calculates the approximate area of a bounding box in square meters
+ * Uses the Haversine formula for geodesic calculations
+ * @param {number} lng1 - First longitude coordinate
+ * @param {number} lat1 - First latitude coordinate
+ * @param {number} lng2 - Second longitude coordinate
+ * @param {number} lat2 - Second latitude coordinate
+ * @returns {number} Area in square meters
+ */
 function calculateBBoxSize(lng1, lat1, lng2, lat2) {
  // Approximate distance calculation using Haversine formula or geodesic formula
  const toRad = (angle) => (angle * Math.PI) / 180;
@@ -346,7 +369,11 @@ function calculateBBoxSize(lng1, lat1, lng2, lat2) {
  return Math.abs(width * height);
 }

-// Function to normalize longitude to the range [-180, 180]
+/**
+ * Normalizes a longitude value to the range [-180, 180]
+ * @param {number} lon - Longitude value to normalize
+ * @returns {number} Normalized longitude value
+ */
 function normalizeLongitude(lon) {
  return ((lon + 180) % 360 + 360) % 360 - 180;
 }
@@ -377,13 +404,13 @@ function displayBboxInfoText(bboxText) {
  const selectedSize = calculateBBoxSize(lng1, lat1, lng2, lat2);

  if (selectedSize > threshold2) {
-    bboxInfo.textContent = window.localization.area_too_large;
+    localizeElement(window.localization, { element: bboxInfo }, "area_too_large");
    bboxInfo.style.color = "#fa7878";
  } else if (selectedSize > threshold1) {
-    bboxInfo.textContent = window.localization.area_extensive;
+    localizeElement(window.localization, { element: bboxInfo }, "area_extensive");
    bboxInfo.style.color = "#fecc44";
  } else {
-    bboxInfo.textContent = window.localization.selection_confirmed;
+    localizeElement(window.localization, { element: bboxInfo }, "selection_confirmed");
    bboxInfo.style.color = "#7bd864";
  }
 }
@@ -405,22 +432,32 @@ async function selectWorld(generate_new_world) {
  closeWorldPicker();
 }

+/**
+ * Handles world selection errors and displays appropriate messages
+ * @param {number} errorCode - Error code from the backend
+ */
 function handleWorldSelectionError(errorCode) {
-  const errorMessages = {
-    1: window.localization.minecraft_directory_not_found,
-    2: window.localization.world_in_use,
-    3: window.localization.failed_to_create_world,
-    4: window.localization.no_world_selected_error
+  const errorKeys = {
+    1: "minecraft_directory_not_found",
+    2: "world_in_use",
+    3: "failed_to_create_world",
+    4: "no_world_selected_error"
  };

-  const errorMessage = errorMessages[errorCode] || "Unknown error";
-  document.getElementById('selected-world').textContent = errorMessage;
-  document.getElementById('selected-world').style.color = "#fa7878";
+  const errorKey = errorKeys[errorCode] || "unknown_error";
+  const selectedWorld = document.getElementById('selected-world');
+  localizeElement(window.localization, { element: selectedWorld }, errorKey);
+  selectedWorld.style.color = "#fa7878";
  worldPath = "";
-  console.error(error);
+  console.error(errorCode);
 }

 let generationButtonEnabled = true;
+/**
+ * Initiates the world generation process
+ * Validates required inputs and sends generation parameters to the backend
+ * @returns {Promise<void>}
+ */
 async function startGeneration() {
  try {
    if (generationButtonEnabled === false) {
@@ -428,17 +465,20 @@ async function startGeneration() {
    }

    if (!selectedBBox || selectedBBox == "0.000000 0.000000 0.000000 0.000000") {
-      document.getElementById('bbox-info').textContent = window.localization.select_location_first;
-      document.getElementById('bbox-info').style.color = "#fa7878";
+      const bboxInfo = document.getElementById('bbox-info');
+      localizeElement(window.localization, { element: bboxInfo }, "select_location_first");
+      bboxInfo.style.color = "#fa7878";
      return;
    }

    if (!worldPath || worldPath === "") {
-      document.getElementById('selected-world').textContent = window.localization.select_minecraft_world_first;
-      document.getElementById('selected-world').style.color = "#fa7878";
+      const selectedWorld = document.getElementById('selected-world');
+      localizeElement(window.localization, { element: selectedWorld }, "select_minecraft_world_first");
+      selectedWorld.style.color = "#fa7878";
      return;
    }

+    var terrain = document.getElementById("terrain-toggle").checked;
    var winter_mode = document.getElementById("winter-toggle").checked;
    var scale = parseFloat(document.getElementById("scale-value-slider").value);
    var floodfill_timeout = parseInt(document.getElementById("floodfill-timeout").value, 10);
@@ -456,6 +496,7 @@ async function startGeneration() {
        groundLevel: ground_level,
        winterMode: winter_mode,
        floodfillTimeout: floodfill_timeout,
+        terrainEnabled: terrain
    });

    console.log("Generation process started.");
--- a/gui-src/js/maps/mapbox.v3.2.0.js
+++ b/gui-src/js/maps/mapbox.v3.2.0.js
--- a/gui-src/locales/de.json
+++ b/gui-src/locales/de.json
@@ -9,8 +9,6 @@
  "custom_selection_confirmed": "Benutzerdefinierte Auswahl bestätigt!",
  "error_coordinates_out_of_range": "Fehler: Koordinaten sind außerhalb des Bereichs oder falsch geordnet (Lat vor Lng erforderlich).",
  "invalid_format": "Ungültiges Format. Bitte verwende 'lat,lng,lat,lng' oder 'lat lng lat lng'.",
-  "select_a_location_first": "Wähle zuerst einen Standort aus!",
-  "select_a_minecraft_world_first": "Wähle zuerst eine Minecraft Welt aus!",
  "generation_process_started": "Generierungsprozess gestartet.",
  "winter_mode": "Wintermodus:",
  "world_scale": "Weltmaßstab:",
@@ -31,5 +29,10 @@
  "select_location_first": "Wähle zuerst einen Standort aus!",
  "area_too_large": "Dieses Gebiet ist sehr groß und könnte das Berechnungslimit überschreiten.",
  "area_extensive": "Diese Gebietsgröße könnte längere Zeit für die Generierung benötigen.",
-  "selection_confirmed": "Auswahl bestätigt!"
+  "selection_confirmed": "Auswahl bestätigt!",
+  "unknown_error": "Unknown error",
+  "license_and_credits": "License and Credits",
+  "placeholder_bbox": "Format: lat,lng,lat,lng",
+  "placeholder_floodfill": "Sekunden",
+  "placeholder_ground": "Bodenhöhe"
 }
--- a/gui-src/locales/en-US.json
+++ b/gui-src/locales/en-US.json
@@ -0,0 +1,38 @@
+{
+  "select_location": "Select Location",
+  "zoom_in_and_choose": "Zoom in and choose your area using the rectangle tool",
+  "select_world": "Select World",
+  "choose_world": "Choose World",
+  "no_world_selected": "No world selected",
+  "start_generation": "Start Generation",
+  "progress": "Progress",
+  "custom_selection_confirmed": "Custom selection confirmed!",
+  "error_coordinates_out_of_range": "Error: Coordinates are out of range or incorrectly ordered (Lat before Lng required).",
+  "invalid_format": "Invalid format. Please use 'lat,lng,lat,lng' or 'lat lng lat lng'.",
+  "generation_process_started": "Generation process started.",
+  "winter_mode": "Winter Mode:",
+  "world_scale": "World Scale:",
+  "custom_bounding_box": "Custom Bounding Box:",
+  "floodfill_timeout": "Floodfill Timeout (sec):",
+  "ground_level": "Ground Level:",
+  "choose_world_modal_title": "Choose World",
+  "select_existing_world": "Select existing world",
+  "generate_new_world": "Generate new world",
+  "customization_settings": "Customization Settings",
+  "footer_text": "© {year} Arnis v{version} by louis-e",
+  "new_version_available": "There's a new version available! Click here to download it.",
+  "minecraft_directory_not_found": "Minecraft directory not found",
+  "world_in_use": "The selected world is currently in use",
+  "failed_to_create_world": "Failed to create new world",
+  "no_world_selected_error": "No world selected",
+  "select_minecraft_world_first": "Select a Minecraft world first!",
+  "select_location_first": "Select a location first!",
+  "area_too_large": "This area is very large and could exceed typical computing limits.",
+  "area_extensive": "The area is quite extensive and may take significant time and resources.",
+  "selection_confirmed": "Selection confirmed!",
+  "unknown_error": "Unknown error",
+  "license_and_credits": "License and Credits",
+  "placeholder_bbox": "Format: lat,lng,lat,lng",
+  "placeholder_floodfill": "Seconds",
+  "placeholder_ground": "Ground Level"
+}
--- a/gui-src/locales/en.json
+++ b/gui-src/locales/en.json
@@ -1,35 +0,0 @@
-{
-  "select_location": "Select Location",
-  "zoom_in_and_choose": "Zoom in and choose your area using the rectangle tool",
-  "select_world": "Select World",
-  "choose_world": "Choose World",
-  "no_world_selected": "No world selected",
-  "start_generation": "Start Generation",
-  "progress": "Progress",
-  "custom_selection_confirmed": "Custom selection confirmed!",
-  "error_coordinates_out_of_range": "Error: Coordinates are out of range or incorrectly ordered (Lat before Lng required).",
-  "invalid_format": "Invalid format. Please use 'lat,lng,lat,lng' or 'lat lng lat lng'.",
-  "select_a_location_first": "Select a location first!",
-  "select_a_minecraft_world_first": "Select a Minecraft world first!",
-  "generation_process_started": "Generation process started.",
-  "winter_mode": "Winter Mode:",
-  "world_scale": "World Scale:",
-  "custom_bounding_box": "Custom Bounding Box:",
-  "floodfill_timeout": "Floodfill Timeout (sec):",
-  "ground_level": "Ground Level:",
-  "choose_world_modal_title": "Choose World",
-  "select_existing_world": "Select existing world",
-  "generate_new_world": "Generate new world",
-  "customization_settings": "Customization Settings",
-  "footer_text": "© {year} Arnis v{version} by louis-e",
-  "new_version_available": "There's a new version available! Click here to download it.",
-  "minecraft_directory_not_found": "Minecraft directory not found",
-  "world_in_use": "The selected world is currently in use",
-  "failed_to_create_world": "Failed to create new world",
-  "no_world_selected_error": "No world selected",
-  "select_minecraft_world_first": "Select a Minecraft world first!",
-  "select_location_first": "Select a location first!",
-  "area_too_large": "This area is very large and could exceed typical computing limits.",
-  "area_extensive": "The area is quite extensive and may take significant time and resources.",
-  "selection_confirmed": "Selection confirmed!"
-}
--- a/gui-src/locales/en.json
+++ b/gui-src/locales/en.json
@@ -0,0 +1 @@
+en-US.json
--- a/gui-src/locales/es.json
+++ b/gui-src/locales/es.json
@@ -9,8 +9,6 @@
  "custom_selection_confirmed": "¡Selección personalizada confirmada!",
  "error_coordinates_out_of_range": "Error: Las coordenadas están fuera de rango o están ordenadas incorrectamente (Lat antes de Lng requerido).",
  "invalid_format": "Formato inválido. Por favor, use 'lat,lng,lat,lng' o 'lat lng lat lng'.",
-  "select_a_location_first": "¡Seleccione una ubicación primero!",
-  "select_a_minecraft_world_first": "¡Seleccione un mundo de Minecraft primero!",
  "generation_process_started": "Proceso de generación iniciado.",
  "winter_mode": "Modo invierno:",
  "world_scale": "Escala del mundo:",
@@ -31,5 +29,10 @@
  "select_location_first": "¡Seleccione una ubicación primero!",
  "area_too_large": "Esta área es muy grande y podría exceder los límites típicos de computación.",
  "area_extensive": "El área es bastante extensa y puede requerir mucho tiempo y recursos.",
-  "selection_confirmed": "¡Selección confirmada!"
+  "selection_confirmed": "¡Selección confirmada!",
+  "unknown_error": "Unknown error",
+  "license_and_credits": "License and Credits",
+  "placeholder_bbox": "Format: lat,lng,lat,lng",
+  "placeholder_floodfill": "Seconds",
+  "placeholder_ground": "Ground Level"
 }
--- a/gui-src/locales/fi.json
+++ b/gui-src/locales/fi.json
@@ -0,0 +1,38 @@
+{
+  "select_location": "Valitse paikka",
+  "zoom_in_and_choose": "Zoomaa ja valitse paikka käyttämällä suorakulmatyökalua.",
+  "select_world": "Valitse maailma",
+  "choose_world": "Valitse maailma",
+  "no_world_selected": "Maailmaa ei valittu",
+  "start_generation": "Aloita generointi",
+  "progress": "Edistys",
+  "custom_selection_confirmed": "Mukautettu valinta vahvistettu!",
+  "error_coordinates_out_of_range": "Virhe: Koordinaatit ovat kantaman ulkopuolella tai vääriin aseteltu (Lat ennen Lng vaadittu).",
+  "invalid_format": "Väärä formaatti. Käytä 'lat,lng,lat,lng' tai 'lat lng lat lng'.",
+  "generation_process_started": "Luontiprosessi aloitettu.",
+  "winter_mode": "Talvitila:",
+  "world_scale": "Maailmanskaalaus:",
+  "custom_bounding_box": "Mukautettu rajoituslaatikko:",
+  "floodfill_timeout": "Täytön aikakatkaisu (sec):",
+  "ground_level": "Maataso:",
+  "choose_world_modal_title": "Valitse maailma",
+  "select_existing_world": "Valitse olemassa oleva maailma",
+  "generate_new_world": "Luo uusi maailma",
+  "customization_settings": "Kustomisaatio-asetukset",
+  "footer_text": "© {year} Arnis v{version} tekijänä louis-e",
+  "new_version_available": "Uusi versio on saatavilla! Paina tästä ladataksesi sen.",
+  "minecraft_directory_not_found": "Minecraft-hakemistoa ei löytynyt",
+  "world_in_use": "Valittu maailma käytössä.",
+  "failed_to_create_world": "Uuden maailman luonti epäonnistui",
+  "no_world_selected_error": "Maailmaa ei valittu",
+  "select_minecraft_world_first": "Valitse Minecraft-maailma ensin!",
+  "select_location_first": "Valitse paikka ensin!",
+  "area_too_large": "Tämä alue on todella iso ja voi ylittää tyypilliset laskentarajat.",
+  "area_extensive": "Alue on aika laaja ja voi viedä pitkän ajan ja resursseja.",
+  "selection_confirmed": "Valinta vahvistettu!",
+  "unknown_error": "Unknown error",
+  "license_and_credits": "License and Credits",
+  "placeholder_bbox": "Format: lat,lng,lat,lng",
+  "placeholder_floodfill": "Seconds",
+  "placeholder_ground": "Ground Level"
+}
--- a/gui-src/locales/ko.json
+++ b/gui-src/locales/ko.json
@@ -1,35 +1,38 @@
 {
-"select_location": "장소 선택",
-"zoom_in_and_choose": "줌 인하고 직사각형 도구를 사용하여 영역을 선택하세요.",
-"select_world": "세계 선택",
-"choose_world": "세계 선택",
-"no_world_selected": "선택된 세계 없음",
-"start_generation": "생성 시작",
-"progress": "진행",
-"custom_selection_confirmed": "사용자 지정 선택이 확인되었습니다!",
-"error_coordinates_out_of_range": "오류: 좌표가 범위를 벗어나거나 잘못된 순서입니다 (Lat이 Lng보다 먼저 필요합니다).",
-"invalid_format": "잘못된 형식입니다. 'lat,lng,lat,lng' 또는 'lat lng lat lng' 형식을 사용하세요.",
-"select_a_location_first": "먼저 위치를 선택하세요!",
-"select_a_minecraft_world_first": "먼저 마인크래프트 세계를 선택하세요!",
-"generation_process_started": "생성 프로세스가 시작되었습니다.",
-"winter_mode": "겨울 모드:",
-"world_scale": "세계 규모:",
-"custom_bounding_box": "사용자 지정 경계 상자:",
-"floodfill_timeout": "채우기 시간 초과 (초):",
-"ground_level": "지면 레벨:",
-"choose_world_modal_title": "세계 선택",
-"select_existing_world": "이미 존재하는 세계 선택",
-"generate_new_world": "새 세계 생성",
-"customization_settings": "사용자 지정 설정",
-"footer_text": "© {year} Arnis v{version} by louis-e",
-"new_version_available": "새로운 버전이 있습니다! 여기를 클릭하여 다운로드하세요.",
-"minecraft_directory_not_found": "마인크래프트 디렉토리가 발견되지 않았습니다",
-"world_in_use": "선택한 세계가 현재 사용 중입니다",
-"failed_to_create_world": "새 세계 생성에 실패했습니다",
-"no_world_selected_error": "선택된 세계 없음 오류",
-"select_minecraft_world_first": "먼저 마인크래프트 세계를 선택하세요!",
-"select_location_first": "먼저 위치를 선택하세요!",
-"area_too_large": "이 지역은 매우 크고, 일반적인 계산 한계를 초과할 수 있습니다.",
-"area_extensive": "이 지역은 꽤 광범위하여 значитель한 시간과 자원이 필요할 수 있습니다.",
-"selection_confirmed": "선택이 확인되었습니다!"
+  "select_location": "장소 선택",
+  "zoom_in_and_choose": "줌 인하고 직사각형 도구를 사용하여 영역을 선택하세요.",
+  "select_world": "세계 선택",
+  "choose_world": "세계 선택",
+  "no_world_selected": "선택된 세계 없음",
+  "start_generation": "생성 시작",
+  "progress": "진행",
+  "custom_selection_confirmed": "사용자 지정 선택이 확인되었습니다!",
+  "error_coordinates_out_of_range": "오류: 좌표가 범위를 벗어나거나 잘못된 순서입니다 (Lat이 Lng보다 먼저 필요합니다).",
+  "invalid_format": "잘못된 형식입니다. 'lat,lng,lat,lng' 또는 'lat lng lat lng' 형식을 사용하세요.",
+  "generation_process_started": "생성 프로세스가 시작되었습니다.",
+  "winter_mode": "겨울 모드:",
+  "world_scale": "세계 규모:",
+  "custom_bounding_box": "사용자 지정 경계 상자:",
+  "floodfill_timeout": "채우기 시간 초과 (초):",
+  "ground_level": "지면 레벨:",
+  "choose_world_modal_title": "세계 선택",
+  "select_existing_world": "이미 존재하는 세계 선택",
+  "generate_new_world": "새 세계 생성",
+  "customization_settings": "사용자 지정 설정",
+  "footer_text": "© {year} Arnis v{version} by louis-e",
+  "new_version_available": "새로운 버전이 있습니다! 여기를 클릭하여 다운로드하세요.",
+  "minecraft_directory_not_found": "마인크래프트 디렉토리가 발견되지 않았습니다",
+  "world_in_use": "선택한 세계가 현재 사용 중입니다",
+  "failed_to_create_world": "새 세계 생성에 실패했습니다",
+  "no_world_selected_error": "선택된 세계 없음 오류",
+  "select_minecraft_world_first": "먼저 마인크래프트 세계를 선택하세요!",
+  "select_location_first": "먼저 위치를 선택하세요!",
+  "area_too_large": "이 지역은 매우 크고, 일반적인 계산 한계를 초과할 수 있습니다.",
+  "area_extensive": "이 지역은 꽤 광범위하여 значитель한 시간과 자원이 필요할 수 있습니다.",
+  "selection_confirmed": "선택이 확인되었습니다!",
+  "unknown_error": "Unknown error",
+  "license_and_credits": "License and Credits",
+  "placeholder_bbox": "Format: lat,lng,lat,lng",
+  "placeholder_floodfill": "Seconds",
+  "placeholder_ground": "Ground Level"
 }
--- a/gui-src/locales/lt.json
+++ b/gui-src/locales/lt.json
@@ -0,0 +1,38 @@
+{
+  "select_location": "Vietos pasirinkimas",
+  "zoom_in_and_choose": "Pasididinkite žemėlapį ir pasirinkite plotą su kvadrato įrankiu",
+  "select_world": "Pasaulio pasirinkimas",
+  "choose_world": "Pasirinkti pasaulį",
+  "no_world_selected": "Pasaulis nepasirinktas",
+  "start_generation": "Pradėti generaciją",
+  "progress": "Progresas",
+  "custom_selection_confirmed": "Rėmo pasirinkimas patvirtintas!",
+  "error_coordinates_out_of_range": "Klaida: Koordinatės yra už ribų arba neteisingai išdėstytos (plat turi būti prieš ilg).",
+  "invalid_format": "Neteisingas formatas. Prašome naudoti 'plat,ilg,plat,ilg' arba 'plat ilg plat ilg'.",
+  "generation_process_started": "Generacijos procesas pradėtas.",
+  "winter_mode": "Žiemos režimas:",
+  "world_scale": "Pasaulio mastelis:",
+  "custom_bounding_box": "Pasirinktinis ribos rėmas:",
+  "floodfill_timeout": "Užpildymo laiko limitas (sek.):",
+  "ground_level": "Žemės lygis:",
+  "choose_world_modal_title": "Pasaulio pasirinkimas",
+  "select_existing_world": "Pasirinkti esamą pasaulį",
+  "generate_new_world": "Sugeneruoti naują pasaulį",
+  "customization_settings": "Generacijos nustatymai",
+  "footer_text": "© {year} „Arnis“ v{version} sukurta louis-e",
+  "new_version_available": "Surasta nauja versija! Spauskite čia kad ją atsisiųstumėte.",
+  "minecraft_directory_not_found": "Nerastas „Minecraft“ aplankas",
+  "world_in_use": "Pasirinktas pasaulis dabar užimtas",
+  "failed_to_create_world": "Klaida sukuriant naują pasaulį",
+  "no_world_selected_error": "Nėra pasirinktas pasaulis",
+  "select_minecraft_world_first": "Pirma pasirinkite „Minecraft“ pasaulį!",
+  "select_location_first": "Pirma pasirinkite vietą!",
+  "area_too_large": "Šis plotas yra labai didelis ir gali viršyti tipinius resursų limitus.",
+  "area_extensive": "Šis plotas yra pakankamai didelis kuriam reikėtų daug laiko ir resursų.",
+  "selection_confirmed": "Pasirinkimas patvirtintas!",
+  "unknown_error": "Nežinoma klaida",
+  "license_and_credits": "Licencija ir padėkos",
+  "placeholder_bbox": "Formatas: plat,lyg,plat,lyg",
+  "placeholder_floodfill": "Sekundės",
+  "placeholder_ground": "Žemės lygis"
+}
--- a/gui-src/locales/pl.json
+++ b/gui-src/locales/pl.json
@@ -1,35 +1,38 @@
 {
-    "select_location": "Wybierz lokalizację",
-    "zoom_in_and_choose": "Przybliż i zaznacz obszar za pomocą prostokątnego narzędzia",
-    "select_world": "Wybierz świat",
-    "choose_world": "Wybierz świat",
-    "no_world_selected": "Nie wybrano świata",
-    "start_generation": "Rozpocznij generowanie",
-    "progress": "Postęp",
-    "custom_selection_confirmed": "Niestandardowy wybór potwierdzony!",
-    "error_coordinates_out_of_range": "Błąd: Współrzędne są poza zakresem lub nieprawidłowo uporządkowane (wymagane Lat przed Lng).",
-    "invalid_format": "Nieprawidłowy format. Użyj 'lat,lng,lat,lng' lub 'lat lng lat lng'.",
-    "select_a_location_first": "Najpierw wybierz lokalizację!",
-    "select_a_minecraft_world_first": "Najpierw wybierz świat Minecrafta!",
-    "generation_process_started": "Proces generowania rozpoczęty.",
-    "winter_mode": "Tryb zimowy:",
-    "world_scale": "Skala świata:",
-    "custom_bounding_box": "Niestandardowe obramowanie obszaru:",
-    "floodfill_timeout": "Limit czasu wypełniania (sek):",
-    "ground_level": "Wysokość obszaru:",
-    "choose_world_modal_title": "Wybierz świat",
-    "select_existing_world": "Wybierz istniejący świat",
-    "generate_new_world": "Generuj nowy świat",
-    "customization_settings": "Ustawienia personalizacji",
-    "footer_text": "© {year} Arnis v{version} przez louis-e",
-    "new_version_available": "Dostępna jest nowa wersja! Kliknij tutaj, aby ją pobrać.",
-    "minecraft_directory_not_found": "Nie znaleziono katalogu Minecrafta",
-    "world_in_use": "Wybrany świat jest obecnie używany",
-    "failed_to_create_world": "Nie udało się utworzyć nowego świata",
-    "no_world_selected_error": "Nie wybrano świata",
-    "select_minecraft_world_first": "Najpierw wybierz świat Minecrafta!",
-    "select_location_first": "Najpierw wybierz lokalizację!",
-    "area_too_large": "Ten obszar jest bardzo duży i może przekroczyć typowe limity obliczeniowe.",
-    "area_extensive": "Ten obszar jest dość rozległy i może wymagać znacznego czasu i zasobów.",
-    "selection_confirmed": "Wybór potwierdzony!"
-  }
+  "select_location": "Wybierz lokalizację",
+  "zoom_in_and_choose": "Przybliż i zaznacz obszar za pomocą prostokąta",
+  "select_world": "Wybierz świat",
+  "choose_world": "Wybierz świat",
+  "no_world_selected": "Nie wybrano świata",
+  "start_generation": "Rozpocznij generowanie",
+  "progress": "Postęp",
+  "custom_selection_confirmed": "Niestandardowy wybór potwierdzony!",
+  "error_coordinates_out_of_range": "Błąd: Współrzędne są poza zakresem lub w złej kolejności (wymagana szerokość przed długością).",
+  "invalid_format": "Nieprawidłowy format. Użyj 'szer.,dł.,szer.,dł.' lub 'szer. dł. szer. dł.'.",
+  "generation_process_started": "Proces generowania rozpoczęty.",
+  "winter_mode": "Tryb Zimowy:",
+  "world_scale": "Skala świata:",
+  "custom_bounding_box": "Niestandardowy obszar:",
+  "floodfill_timeout": "Limit czasu wypełniania (sek):",
+  "ground_level": "Wysokość obszaru:",
+  "choose_world_modal_title": "Wybierz świat",
+  "select_existing_world": "Wybierz istniejący świat",
+  "generate_new_world": "Generuj nowy świat",
+  "customization_settings": "Ustawienia personalizacji",
+  "footer_text": "© {year} Arnis v{version} autorstwa louis-e",
+  "new_version_available": "Dostępna jest nowa wersja! Kliknij tutaj, aby ją pobrać.",
+  "minecraft_directory_not_found": "Nie znaleziono katalogu Minecrafta",
+  "world_in_use": "Wybrany świat jest obecnie używany",
+  "failed_to_create_world": "Nie udało się utworzyć świata",
+  "no_world_selected_error": "Nie wybrano świata",
+  "select_minecraft_world_first": "Najpierw wybierz świat Minecrafta!",
+  "select_location_first": "Najpierw wybierz lokalizację!",
+  "area_too_large": "Ten obszar jest bardzo duży i może przekroczyć limity obliczeniowe.",
+  "area_extensive": "Ten obszar jest rozległy i może pochłonąć dużo czasu oraz zasobów.",
+  "selection_confirmed": "Wybór potwierdzony!",
+  "unknown_error": "Unknown error",
+  "license_and_credits": "License and Credits",
+  "placeholder_bbox": "Format: lat,lng,lat,lng",
+  "placeholder_floodfill": "Seconds",
+  "placeholder_ground": "Ground Level"
+}
--- a/gui-src/locales/ru.json
+++ b/gui-src/locales/ru.json
@@ -1,6 +1,6 @@
 {
  "select_location": "Выбрать местоположение",
-  "zoom_in_and_choose": "Приблизьте и выберите область с помощью инструмента прямоугольника",
+  "zoom_in_and_choose": "Приблизьте и выберите область",
  "select_world": "Выбрать мир",
  "choose_world": "Выбрать мир",
  "no_world_selected": "Мир не выбран",
@@ -9,8 +9,6 @@
  "custom_selection_confirmed": "Пользовательский выбор подтвержден!",
  "error_coordinates_out_of_range": "Ошибка: Координаты находятся вне зоны действия или указаны в неправильном порядке (сначала широта, затем долгота)",
  "invalid_format": "Неверный формат. Используйте 'широта,долгота,широта,долгота' или 'широта долгота широта долгота'",
-  "select_a_location_first": "Сначала выберите местоположение!",
-  "select_a_minecraft_world_first": "Сначала выберите мир Minecraft!",
  "generation_process_started": "Процесс генерации начат",
  "winter_mode": "Зимний режим:",
  "world_scale": "Масштаб мира:",
@@ -31,5 +29,10 @@
  "select_location_first": "Сначала выберите местоположение!",
  "area_too_large": "Эта область слишком велика и может превысить типичные вычислительные ограничения",
  "area_extensive": "Область довольно обширна и может потребовать значительного времени и ресурсов",
-  "selection_confirmed": "Выбор подтвержден!"
-}
+  "selection_confirmed": "Выбор подтвержден!",
+  "unknown_error": "Unknown error",
+  "license_and_credits": "License and Credits",
+  "placeholder_bbox": "Format: lat,lng,lat,lng",
+  "placeholder_floodfill": "Seconds",
+  "placeholder_ground": "Ground Level"
+}
--- a/gui-src/locales/sv.json
+++ b/gui-src/locales/sv.json
@@ -9,8 +9,6 @@
  "custom_selection_confirmed": "Anpassad markering bekräftad!",
  "error_coordinates_out_of_range": "Fel: Koordinater är utanför området eller felaktigt ordnade (Lat före Lng krävs).",
  "invalid_format": "Ogiltigt format. Använd 'lat,lng,lat,lng' eller 'lat lng lat lng'.",
-  "select_a_location_first": "Välj en plats först!",
-  "select_a_minecraft_world_first": "Välj en Minecraft-värld först!",
  "generation_process_started": "Genereringsprocessen startad.",
  "winter_mode": "Vinterläge:",
  "world_scale": "Världsskala:",
@@ -31,5 +29,10 @@
  "select_location_first": "Välj plats först!",
  "area_too_large": "Detta område är mycket stort och kan överskrida vanliga beräkningsgränser.",
  "area_extensive": "Området är ganska extensivt och kan ta betydande tid och resurser.",
-  "selection_confirmed": "Val bekräftat!"
+  "selection_confirmed": "Val bekräftat!",
+  "unknown_error": "Unknown error",
+  "license_and_credits": "License and Credits",
+  "placeholder_bbox": "Format: lat,lng,lat,lng",
+  "placeholder_floodfill": "Seconds",
+  "placeholder_ground": "Ground Level"
 }
--- a/gui-src/locales/ua.json
+++ b/gui-src/locales/ua.json
@@ -9,8 +9,6 @@
  "custom_selection_confirmed": "Користувацький вибір підтверджено!",
  "error_coordinates_out_of_range": "Помилка: Координати поза діапазоном або неправильно впорядковані (потрібно широта перед довгота)",
  "invalid_format": "Неправильний формат. Будь ласка, використовуйте 'широта,довгота,широта,довгота' або 'широта довгота широта довгота'",
-  "select_a_location_first": "Спочатку оберіть місцезнахождення!",
-  "select_a_minecraft_world_first": "Спочатку оберіть світ Minecraft!",
  "generation_process_started": "Процес генерації розпочато",
  "winter_mode": "Зимовий режим:",
  "world_scale": "Масштаб світу:",
@@ -31,5 +29,10 @@
  "select_location_first": "Спочатку виберіть місцезнаходження!",
  "area_too_large": "Ця область дуже велика і може перевищити типові обчислювальні межі",
  "area_extensive": "Область досить велика і може вимагати значного часу та ресурсів",
-  "selection_confirmed": "Вибір підтверджено!"
-}
+  "selection_confirmed": "Вибір підтверджено!",
+  "unknown_error": "Unknown error",
+  "license_and_credits": "License and Credits",
+  "placeholder_bbox": "Format: lat,lng,lat,lng",
+  "placeholder_floodfill": "Seconds",
+  "placeholder_ground": "Ground Level"
+}
--- a/gui-src/locales/zh-CN.json
+++ b/gui-src/locales/zh-CN.json
@@ -9,8 +9,6 @@
  "custom_selection_confirmed": "自定义选择已确认！",
  "error_coordinates_out_of_range": "错误：坐标超出范围或顺序不正确（需要先纬度后经度）。",
  "invalid_format": "格式无效。请使用 'lat,lng,lat,lng' 或 'lat lng lat lng'。",
-  "select_a_location_first": "请先选择一个位置！",
-  "select_a_minecraft_world_first": "请先选择一个 Minecraft 世界！",
  "generation_process_started": "生成过程已开始。",
  "winter_mode": "冬季模式：",
  "world_scale": "世界比例：",
@@ -31,5 +29,10 @@
  "select_location_first": "请先选择一个位置！",
  "area_too_large": "该区域非常大，可能会超出典型的计算限制。",
  "area_extensive": "该区域相当广泛，可能需要大量时间和资源。",
-  "selection_confirmed": "选择已确认！"
+  "selection_confirmed": "选择已确认！",
+  "unknown_error": "Unknown error",
+  "license_and_credits": "License and Credits",
+  "placeholder_bbox": "Format: lat,lng,lat,lng",
+  "placeholder_floodfill": "Seconds",
+  "placeholder_ground": "Ground Level"
 }
--- a/gui-src/maps.html
+++ b/gui-src/maps.html
@@ -7,13 +7,11 @@
    <link rel="stylesheet" href="css/maps/leaflet.css" />
    <link rel="stylesheet" href="css/maps/leaflet.draw.css" />
    <link rel="stylesheet" href="css/maps/leaflet.sidebar.css" />
-    <link rel="stylesheet" href="css/maps/mapbox.v3.2.0.css" />
    <link rel="stylesheet" href="css/bbox.css" />
    
    <script src="js/libs/jquery-1.9.1.min.js"></script>
    <script src="js/libs/jquery-ui-1.10.3.custom.js"></script>
    <script src="js/maps/leaflet.js"></script>
-    <script src="js/maps/mapbox.v3.2.0.js"></script>
    <script src="js/maps/leaflet.draw.js"></script>
    <script src="js/maps/leaflet.sidebar.js"></script>
    <script src="js/maps/wkt.parser.js"></script>
--- a/src/args.rs
+++ b/src/args.rs
@@ -41,6 +41,10 @@ pub struct Args {
    #[arg(long, default_value_t = false)]
    pub winter: bool,

+    /// Enable terrain (optional)
+    #[arg(long, default_value_t = false, action = clap::ArgAction::SetFalse)]
+    pub terrain: bool,
+
    /// Enable debug mode (optional)
    #[arg(long, default_value_t = false, action = clap::ArgAction::SetTrue)]
    pub debug: bool,
--- a/src/block_definitions.rs
+++ b/src/block_definitions.rs
@@ -141,6 +141,9 @@ impl Block {
            111 => "snow_block",
            112 => "snow",
            113 => "oak_sign",
+            114 => "andesite_wall",
+            115 => "stone_brick_wall",
+            116..=125 => "rail",
            _ => panic!("Invalid id"),
        }
    }
@@ -187,6 +190,80 @@ impl Block {
                map
            })),

+            116 => Some(Value::Compound({
+                let mut map = HashMap::new();
+                map.insert(
+                    "shape".to_string(),
+                    Value::String("north_south".to_string()),
+                );
+                map
+            })),
+
+            117 => Some(Value::Compound({
+                let mut map = HashMap::new();
+                map.insert("shape".to_string(), Value::String("east_west".to_string()));
+                map
+            })),
+
+            118 => Some(Value::Compound({
+                let mut map = HashMap::new();
+                map.insert(
+                    "shape".to_string(),
+                    Value::String("ascending_east".to_string()),
+                );
+                map
+            })),
+
+            119 => Some(Value::Compound({
+                let mut map = HashMap::new();
+                map.insert(
+                    "shape".to_string(),
+                    Value::String("ascending_west".to_string()),
+                );
+                map
+            })),
+
+            120 => Some(Value::Compound({
+                let mut map = HashMap::new();
+                map.insert(
+                    "shape".to_string(),
+                    Value::String("ascending_north".to_string()),
+                );
+                map
+            })),
+
+            121 => Some(Value::Compound({
+                let mut map = HashMap::new();
+                map.insert(
+                    "shape".to_string(),
+                    Value::String("ascending_south".to_string()),
+                );
+                map
+            })),
+
+            122 => Some(Value::Compound({
+                let mut map = HashMap::new();
+                map.insert("shape".to_string(), Value::String("north_east".to_string()));
+                map
+            })),
+
+            123 => Some(Value::Compound({
+                let mut map = HashMap::new();
+                map.insert("shape".to_string(), Value::String("north_west".to_string()));
+                map
+            })),
+
+            124 => Some(Value::Compound({
+                let mut map = HashMap::new();
+                map.insert("shape".to_string(), Value::String("south_east".to_string()));
+                map
+            })),
+
+            125 => Some(Value::Compound({
+                let mut map = HashMap::new();
+                map.insert("shape".to_string(), Value::String("south_west".to_string()));
+                map
+            })),
            _ => None,
        }
    }
@@ -301,6 +378,8 @@ pub const YELLOW_TERRACOTTA: Block = Block::new(104);
 pub const SNOW_BLOCK: Block = Block::new(111);
 pub const SNOW_LAYER: Block = Block::new(112);
 pub const SIGN: Block = Block::new(113);
+pub const ANDESITE_WALL: Block = Block::new(114);
+pub const STONE_BRICK_WALL: Block = Block::new(115);

 pub const CARROTS: Block = Block::new(105);
 pub const DARK_OAK_DOOR_LOWER: Block = Block::new(106);
@@ -310,6 +389,17 @@ pub const WHEAT: Block = Block::new(109);

 pub const BEDROCK: Block = Block::new(110);

+pub const RAIL_NORTH_SOUTH: Block = Block::new(116);
+pub const RAIL_EAST_WEST: Block = Block::new(117);
+pub const RAIL_ASCENDING_EAST: Block = Block::new(118);
+pub const RAIL_ASCENDING_WEST: Block = Block::new(119);
+pub const RAIL_ASCENDING_NORTH: Block = Block::new(120);
+pub const RAIL_ASCENDING_SOUTH: Block = Block::new(121);
+pub const RAIL_NORTH_EAST: Block = Block::new(122);
+pub const RAIL_NORTH_WEST: Block = Block::new(123);
+pub const RAIL_SOUTH_EAST: Block = Block::new(124);
+pub const RAIL_SOUTH_WEST: Block = Block::new(125);
+
 // Variations for building corners
 pub fn building_corner_variations() -> Vec<Block> {
    vec![
--- a/src/bresenham.rs
+++ b/src/bresenham.rs
@@ -8,26 +8,32 @@ pub fn bresenham_line(
    y2: i32,
    z2: i32,
 ) -> Vec<(i32, i32, i32)> {
-    let mut points: Vec<(i32, i32, i32)> = Vec::new();
+    // Calculate max possible points needed
+    let dx = if x2 > x1 { x2 - x1 } else { x1 - x2 };
+    let dy = if y2 > y1 { y2 - y1 } else { y1 - y2 };
+    let dz = if z2 > z1 { z2 - z1 } else { z1 - z2 };

-    let dx: i32 = (x2 - x1).abs();
-    let dy: i32 = (y2 - y1).abs();
-    let dz: i32 = (z2 - z1).abs();
+    // Pre-allocate vector with exact size needed
+    let capacity = dx.max(dy).max(dz) + 1;
+    let mut points = Vec::with_capacity(capacity as usize);
+    points.reserve_exact(capacity as usize);

-    let xs: i32 = if x1 < x2 { 1 } else { -1 };
-    let ys: i32 = if y1 < y2 { 1 } else { -1 };
-    let zs: i32 = if z1 < z2 { 1 } else { -1 };
+    let xs = if x1 < x2 { 1 } else { -1 };
+    let ys = if y1 < y2 { 1 } else { -1 };
+    let zs = if z1 < z2 { 1 } else { -1 };

-    let mut x: i32 = x1;
-    let mut y: i32 = y1;
-    let mut z: i32 = z1;
+    let mut x = x1;
+    let mut y = y1;
+    let mut z = z1;

+    // Determine dominant axis once, outside the loop
    if dx >= dy && dx >= dz {
-        let mut p1: i32 = 2 * dy - dx;
-        let mut p2: i32 = 2 * dz - dx;
+        let mut p1 = 2 * dy - dx;
+        let mut p2 = 2 * dz - dx;

        while x != x2 {
            points.push((x, y, z));
+
            if p1 >= 0 {
                y += ys;
                p1 -= 2 * dx;
@@ -41,11 +47,12 @@ pub fn bresenham_line(
            x += xs;
        }
    } else if dy >= dx && dy >= dz {
-        let mut p1: i32 = 2 * dx - dy;
-        let mut p2: i32 = 2 * dz - dy;
+        let mut p1 = 2 * dx - dy;
+        let mut p2 = 2 * dz - dy;

        while y != y2 {
            points.push((x, y, z));
+
            if p1 >= 0 {
                x += xs;
                p1 -= 2 * dy;
@@ -59,11 +66,12 @@ pub fn bresenham_line(
            y += ys;
        }
    } else {
-        let mut p1: i32 = 2 * dy - dz;
-        let mut p2: i32 = 2 * dx - dz;
+        let mut p1 = 2 * dy - dz;
+        let mut p2 = 2 * dx - dz;

        while z != z2 {
            points.push((x, y, z));
+
            if p1 >= 0 {
                y += ys;
                p1 -= 2 * dz;
--- a/src/cartesian.rs
+++ b/src/cartesian.rs
@@ -0,0 +1,12 @@
+#[derive(Copy, Clone)]
+pub struct XZPoint {
+    pub x: i32,
+    pub z: i32,
+}
+
+impl XZPoint {
+    #[inline]
+    pub fn new(x: i32, z: i32) -> Self {
+        Self { x, z }
+    }
+}
--- a/src/data_processing.rs
+++ b/src/data_processing.rs
@@ -1,36 +1,32 @@
 use crate::args::Args;
 use crate::block_definitions::{DIRT, GRASS_BLOCK, SNOW_BLOCK};
+use crate::cartesian::XZPoint;
 use crate::element_processing::*;
+use crate::ground::Ground;
 use crate::osm_parser::ProcessedElement;
 use crate::progress::emit_gui_progress_update;
 use crate::world_editor::WorldEditor;
 use colored::Colorize;
 use indicatif::{ProgressBar, ProgressStyle};

+const MIN_Y: i32 = -64;
+
 pub fn generate_world(
    elements: Vec<ProcessedElement>,
    args: &Args,
    scale_factor_x: f64,
    scale_factor_z: f64,
 ) -> Result<(), String> {
-    println!("{} Processing data...", "[3/5]".bold());
-    emit_gui_progress_update(10.0, "Processing data...");
-
-    let ground_level: i32 = args.ground_level;
    let region_dir: String = format!("{}/region", args.path);
-    let mut editor: WorldEditor =
-        WorldEditor::new(&region_dir, scale_factor_x, scale_factor_z, args);
+    let mut editor: WorldEditor = WorldEditor::new(&region_dir, scale_factor_x, scale_factor_z);

-    editor.set_sign(
-        "↑".to_string(),
-        "Generated World".to_string(),
-        "This direction".to_string(),
-        "".to_string(),
-        9,
-        -61,
-        9,
-        6,
-    );
+    println!("{} Processing data...", "[3/5]".bold());
+    if args.terrain {
+        emit_gui_progress_update(10.0, "Fetching elevation...");
+    }
+    let ground: Ground = Ground::new(args);
+
+    emit_gui_progress_update(11.0, "Processing terrain...");

    // Process data
    let elements_count: usize = elements.len();
@@ -40,9 +36,10 @@ pub fn generate_world(
        .unwrap()
        .progress_chars("█▓░"));

-    let progress_increment_prcs: f64 = 50.0 / elements_count as f64;
-    let mut current_progress_prcs: f64 = 10.0;
+    let progress_increment_prcs: f64 = 49.0 / elements_count as f64;
+    let mut current_progress_prcs: f64 = 11.0;
    let mut last_emitted_progress: f64 = current_progress_prcs;
+
    for element in &elements {
        process_pb.inc(1);
        current_progress_prcs += progress_increment_prcs;
@@ -64,59 +61,56 @@ pub fn generate_world(
        match element {
            ProcessedElement::Way(way) => {
                if way.tags.contains_key("building") || way.tags.contains_key("building:part") {
-                    buildings::generate_buildings(&mut editor, way, ground_level, args, None);
+                    buildings::generate_buildings(&mut editor, way, &ground, args, None);
                } else if way.tags.contains_key("highway") {
-                    highways::generate_highways(&mut editor, element, ground_level, args);
+                    highways::generate_highways(&mut editor, element, &ground, args);
                } else if way.tags.contains_key("landuse") {
-                    landuse::generate_landuse(&mut editor, way, ground_level, args);
+                    landuse::generate_landuse(&mut editor, way, &ground, args);
                } else if way.tags.contains_key("natural") {
-                    natural::generate_natural(&mut editor, element, ground_level, args);
+                    natural::generate_natural(&mut editor, element, &ground, args);
                } else if way.tags.contains_key("amenity") {
-                    amenities::generate_amenities(&mut editor, element, ground_level, args);
+                    amenities::generate_amenities(&mut editor, element, &ground, args);
                } else if way.tags.contains_key("leisure") {
-                    leisure::generate_leisure(&mut editor, way, ground_level, args);
+                    leisure::generate_leisure(&mut editor, way, &ground, args);
                } else if way.tags.contains_key("barrier") {
-                    barriers::generate_barriers(&mut editor, element, ground_level);
+                    barriers::generate_barriers(&mut editor, element, &ground);
                } else if way.tags.contains_key("waterway") {
-                    waterways::generate_waterways(&mut editor, way, ground_level);
+                    waterways::generate_waterways(&mut editor, way, &ground);
                } else if way.tags.contains_key("bridge") {
                    //bridges::generate_bridges(&mut editor, way, ground_level); // TODO FIX
                } else if way.tags.contains_key("railway") {
-                    railways::generate_railways(&mut editor, way, ground_level);
+                    railways::generate_railways(&mut editor, way, &ground);
                } else if way.tags.contains_key("aeroway") || way.tags.contains_key("area:aeroway")
                {
-                    highways::generate_aeroway(&mut editor, way, ground_level);
+                    highways::generate_aeroway(&mut editor, way, &ground);
                } else if way.tags.get("service") == Some(&"siding".to_string()) {
-                    highways::generate_siding(&mut editor, way, ground_level);
+                    highways::generate_siding(&mut editor, way, &ground);
                }
            }
            ProcessedElement::Node(node) => {
                if node.tags.contains_key("door") || node.tags.contains_key("entrance") {
-                    doors::generate_doors(&mut editor, node, ground_level);
+                    doors::generate_doors(&mut editor, node, &ground);
                } else if node.tags.contains_key("natural")
                    && node.tags.get("natural") == Some(&"tree".to_string())
                {
-                    natural::generate_natural(&mut editor, element, ground_level, args);
+                    natural::generate_natural(&mut editor, element, &ground, args);
                } else if node.tags.contains_key("amenity") {
-                    amenities::generate_amenities(&mut editor, element, ground_level, args);
+                    amenities::generate_amenities(&mut editor, element, &ground, args);
                } else if node.tags.contains_key("barrier") {
-                    barriers::generate_barriers(&mut editor, element, ground_level);
+                    barriers::generate_barriers(&mut editor, element, &ground);
                } else if node.tags.contains_key("highway") {
-                    highways::generate_highways(&mut editor, element, ground_level, args);
+                    highways::generate_highways(&mut editor, element, &ground, args);
                } else if node.tags.contains_key("tourism") {
-                    tourisms::generate_tourisms(&mut editor, node, ground_level);
+                    tourisms::generate_tourisms(&mut editor, node, &ground);
                }
            }
            ProcessedElement::Relation(rel) => {
                if rel.tags.contains_key("building") || rel.tags.contains_key("building:part") {
-                    buildings::generate_building_from_relation(
-                        &mut editor,
-                        rel,
-                        ground_level,
-                        args,
-                    );
+                    buildings::generate_building_from_relation(&mut editor, rel, &ground, args);
                } else if rel.tags.contains_key("water") {
-                    water_areas::generate_water_areas(&mut editor, rel, ground_level);
+                    water_areas::generate_water_areas(&mut editor, rel, &ground);
+                } else if rel.tags.get("leisure") == Some(&"park".to_string()) {
+                    leisure::generate_leisure_from_relation(&mut editor, rel, &ground, args);
                }
            }
        }
@@ -131,8 +125,8 @@ pub fn generate_world(

    let mut block_counter: u64 = 0;

-    println!("{} Generating ground layer...", "[4/5]".bold());
-    emit_gui_progress_update(60.0, "Generating ground layer...");
+    println!("{} Generating ground...", "[4/5]".bold());
+    emit_gui_progress_update(60.0, "Generating ground...");

    let ground_pb: ProgressBar = ProgressBar::new(total_blocks);
    ground_pb.set_style(
@@ -149,24 +143,86 @@ pub fn generate_world(

    let groundlayer_block = if args.winter { SNOW_BLOCK } else { GRASS_BLOCK };

-    for x in 0..=(scale_factor_x as i32) {
-        for z in 0..=(scale_factor_z as i32) {
-            editor.set_block(groundlayer_block, x, ground_level, z, None, None);
-            editor.set_block(DIRT, x, ground_level - 1, z, None, None);
-
-            block_counter += 1;
-            if block_counter % batch_size == 0 {
-                ground_pb.inc(batch_size);
+    // Differentiate between terrain and non-terrain generation
+    if ground.elevation_enabled {
+        // Pre-calculate ground levels for all points
+        let mut ground_levels: Vec<Vec<i32>> = Vec::with_capacity(scale_factor_x as usize + 1);
+        for x in 0..=(scale_factor_x as i32) {
+            let mut row = Vec::with_capacity(scale_factor_z as usize + 1);
+            for z in 0..=(scale_factor_z as i32) {
+                row.push(ground.level(XZPoint::new(x, z)));
            }
+            ground_levels.push(row);
+        }

-            gui_progress_grnd += progress_increment_grnd;
-            if (gui_progress_grnd - last_emitted_progress).abs() > 0.25 {
-                emit_gui_progress_update(gui_progress_grnd, "");
-                last_emitted_progress = gui_progress_grnd;
+        // Process blocks in larger batches
+        for x in 0..=(scale_factor_x as i32) {
+            for z in 0..=(scale_factor_z as i32) {
+                let ground_level = ground_levels[x as usize][z as usize];
+
+                // Find the highest block in this column
+                let max_y = (MIN_Y..ground_level)
+                    .find(|y: &i32| editor.block_at(x, *y, z))
+                    .unwrap_or(ground_level)
+                    .min(ground_level);
+
+                // Set blocks in a single batch
+                editor.set_block(groundlayer_block, x, max_y, z, None, None);
+                editor.set_block(DIRT, x, max_y - 1, z, None, None);
+                editor.set_block(DIRT, x, max_y - 2, z, None, None);
+
+                block_counter += 1;
+                if block_counter % batch_size == 0 {
+                    ground_pb.inc(batch_size);
+                }
+
+                gui_progress_grnd += progress_increment_grnd;
+                if (gui_progress_grnd - last_emitted_progress).abs() > 0.25 {
+                    emit_gui_progress_update(gui_progress_grnd, "");
+                    last_emitted_progress = gui_progress_grnd;
+                }
+            }
+        }
+
+        // Set blocks at spawn location
+        for x in 0..=20 {
+            for z in 0..=20 {
+                editor.set_block(groundlayer_block, x, -62, z, None, None);
+            }
+        }
+    } else {
+        for x in 0..=(scale_factor_x as i32) {
+            for z in 0..=(scale_factor_z as i32) {
+                let ground_level = ground.level(XZPoint::new(x, z));
+                editor.set_block(groundlayer_block, x, ground_level, z, None, None);
+                editor.set_block(DIRT, x, ground_level - 1, z, None, None);
+
+                block_counter += 1;
+                if block_counter % batch_size == 0 {
+                    ground_pb.inc(batch_size);
+                }
+
+                gui_progress_grnd += progress_increment_grnd;
+                if (gui_progress_grnd - last_emitted_progress).abs() > 0.25 {
+                    emit_gui_progress_update(gui_progress_grnd, "");
+                    last_emitted_progress = gui_progress_grnd;
+                }
            }
        }
    }

+    // Set sign for player orientation
+    /*editor.set_sign(
+        "↑".to_string(),
+        "Generated World".to_string(),
+        "This direction".to_string(),
+        "".to_string(),
+        9,
+        -61,
+        9,
+        6,
+    );*/
+
    ground_pb.inc(block_counter % batch_size);
    ground_pb.finish();

--- a/src/element_processing/amenities.rs
+++ b/src/element_processing/amenities.rs
@@ -1,14 +1,16 @@
 use crate::args::Args;
 use crate::block_definitions::*;
 use crate::bresenham::bresenham_line;
+use crate::cartesian::XZPoint;
 use crate::floodfill::flood_fill_area;
+use crate::ground::Ground;
 use crate::osm_parser::ProcessedElement;
 use crate::world_editor::WorldEditor;

 pub fn generate_amenities(
    editor: &mut WorldEditor,
    element: &ProcessedElement,
-    ground_level: i32,
+    ground: &Ground,
    args: &Args,
 ) {
    // Skip if 'layer' or 'level' is negative in the tags
@@ -25,21 +27,23 @@ pub fn generate_amenities(
    }

    if let Some(amenity_type) = element.tags().get("amenity") {
-        let first_node: Option<(i32, i32)> = element
+        let first_node: Option<XZPoint> = element
            .nodes()
-            .map(|n: &crate::osm_parser::ProcessedNode| (n.x, n.z))
+            .map(|n: &crate::osm_parser::ProcessedNode| XZPoint::new(n.x, n.z))
            .next();
        match amenity_type.as_str() {
            "waste_disposal" | "waste_basket" => {
                // Place a cauldron for waste disposal or waste basket
-                if let Some((x, z)) = first_node {
-                    editor.set_block(CAULDRON, x, ground_level + 1, z, None, None);
+                if let Some(pt) = first_node {
+                    editor.set_block(CAULDRON, pt.x, ground.level(pt) + 1, pt.z, None, None);
                }
            }
            "vending_machine" | "atm" => {
-                if let Some((x, z)) = first_node {
-                    editor.set_block(IRON_BLOCK, x, ground_level + 1, z, None, None);
-                    editor.set_block(IRON_BLOCK, x, ground_level + 2, z, None, None);
+                if let Some(pt) = first_node {
+                    let y = ground.level(pt);
+
+                    editor.set_block(IRON_BLOCK, pt.x, y + 1, pt.z, None, None);
+                    editor.set_block(IRON_BLOCK, pt.x, y + 2, pt.z, None, None);
                }
            }
            "bicycle_parking" => {
@@ -53,9 +57,18 @@ pub fn generate_amenities(
                let floor_area: Vec<(i32, i32)> =
                    flood_fill_area(&polygon_coords, args.timeout.as_ref());

+                let pts: Vec<_> = floor_area.iter().map(|c| XZPoint::new(c.0, c.1)).collect();
+
+                if pts.is_empty() {
+                    return;
+                }
+
+                let y_min = ground.min_level(pts.iter().cloned()).unwrap();
+                let roof_y = ground.max_level(pts.iter().cloned()).unwrap() + 5;
+
                // Fill the floor area
                for (x, z) in floor_area.iter() {
-                    editor.set_block(ground_block, *x, ground_level, *z, None, None);
+                    editor.set_block(ground_block, *x, y_min, *z, None, None);
                }

                // Place fences and roof slabs at each corner node directly
@@ -63,37 +76,79 @@ pub fn generate_amenities(
                    let x: i32 = node.x;
                    let z: i32 = node.z;

-                    for y in 1..=4 {
-                        editor.set_block(ground_block, x, ground_level, z, None, None);
-                        editor.set_block(OAK_FENCE, x, ground_level + y, z, None, None);
+                    let pt = XZPoint::new(x, z);
+
+                    let y = ground.level(pt);
+                    editor.set_block(ground_block, x, y, z, None, None);
+
+                    for cur_y in (y_min + 1)..roof_y {
+                        editor.set_block(OAK_FENCE, x, cur_y, z, None, None);
                    }
-                    editor.set_block(roof_block, x, ground_level + 5, z, None, None);
+                    editor.set_block(roof_block, x, roof_y, z, None, None);
                }

                // Flood fill the roof area
-                let roof_height: i32 = ground_level + 5;
                for (x, z) in floor_area.iter() {
-                    editor.set_block(roof_block, *x, roof_height, *z, None, None);
+                    editor.set_block(roof_block, *x, roof_y, *z, None, None);
                }
            }
            "bench" => {
                // Place a bench
-                if let Some((x, z)) = first_node {
-                    editor.set_block(SMOOTH_STONE, x, ground_level + 1, z, None, None);
-                    editor.set_block(OAK_LOG, x + 1, ground_level + 1, z, None, None);
-                    editor.set_block(OAK_LOG, x - 1, ground_level + 1, z, None, None);
+                if let Some(pt) = first_node {
+                    let y = ground.level(pt) + 1;
+
+                    editor.set_block(SMOOTH_STONE, pt.x, y, pt.z, None, None);
+                    editor.set_block(OAK_LOG, pt.x + 1, y, pt.z, None, None);
+                    editor.set_block(OAK_LOG, pt.x - 1, y, pt.z, None, None);
                }
            }
            "vending" => {
                // Place vending machine blocks
-                if let Some((x, z)) = first_node {
-                    editor.set_block(IRON_BLOCK, x, ground_level + 1, z, None, None);
-                    editor.set_block(IRON_BLOCK, x, ground_level + 2, z, None, None);
+                if let Some(pt) = first_node {
+                    let y = ground.level(pt);
+
+                    editor.set_block(IRON_BLOCK, pt.x, y + 1, pt.z, None, None);
+                    editor.set_block(IRON_BLOCK, pt.x, y + 2, pt.z, None, None);
+                }
+            }
+            "shelter" => {
+                let roof_block: Block = STONE_BRICK_SLAB;
+
+                let polygon_coords: Vec<(i32, i32)> = element
+                    .nodes()
+                    .map(|n: &crate::osm_parser::ProcessedNode| (n.x, n.z))
+                    .collect();
+                let roof_area: Vec<(i32, i32)> =
+                    flood_fill_area(&polygon_coords, args.timeout.as_ref());
+
+                // Place fences and roof slabs at each corner node directly
+                for node in element.nodes() {
+                    let x: i32 = node.x;
+                    let z: i32 = node.z;
+
+                    let Some(y) = ground.min_level(element.nodes().map(|n| n.xz())) else {
+                        return;
+                    };
+
+                    for fence_height in 1..=4 {
+                        editor.set_block(OAK_FENCE, x, y + fence_height, z, None, None);
+                    }
+                    editor.set_block(roof_block, x, y + 5, z, None, None);
+                }
+
+                // Flood fill the roof area
+                let Some(y) = ground.min_level(element.nodes().map(|n| n.xz())) else {
+                    return;
+                };
+
+                let roof_height: i32 = y + 5;
+                for (x, z) in roof_area.iter() {
+                    editor.set_block(roof_block, *x, roof_height, *z, None, None);
                }
            }
            "parking" | "fountain" => {
                // Process parking or fountain areas
-                let mut previous_node: Option<(i32, i32)> = None;
+                let mut previous_node: Option<XZPoint> = None;
                let mut corner_addup: (i32, i32, i32) = (0, 0, 0);
                let mut current_amenity: Vec<(i32, i32)> = vec![];

@@ -102,23 +157,18 @@ pub fn generate_amenities(
                    "parking" => GRAY_CONCRETE,
                    _ => GRAY_CONCRETE,
                };
+
                for node in element.nodes() {
-                    let x: i32 = node.x;
-                    let z: i32 = node.z;
+                    let pt: XZPoint = node.xz();
+                    let y = ground.level(pt);

                    if let Some(prev) = previous_node {
                        // Create borders for fountain or parking area
+                        let prev_y = ground.level(prev);
                        let bresenham_points: Vec<(i32, i32, i32)> =
-                            bresenham_line(prev.0, ground_level, prev.1, x, ground_level, z);
-                        for (bx, _, bz) in bresenham_points {
-                            editor.set_block(
-                                block_type,
-                                bx,
-                                ground_level,
-                                bz,
-                                Some(&[BLACK_CONCRETE]),
-                                None,
-                            );
+                            bresenham_line(prev.x, prev_y, prev.z, pt.x, y, pt.z);
+                        for (bx, by, bz) in bresenham_points {
+                            editor.set_block(block_type, bx, by, bz, Some(&[BLACK_CONCRETE]), None);

                            // Decorative border around fountains
                            if amenity_type == "fountain" {
@@ -128,7 +178,7 @@ pub fn generate_amenities(
                                            editor.set_block(
                                                LIGHT_GRAY_CONCRETE,
                                                bx + dx,
-                                                ground_level,
+                                                by,
                                                bz + dz,
                                                None,
                                                None,
@@ -144,7 +194,7 @@ pub fn generate_amenities(
                            corner_addup.2 += 1;
                        }
                    }
-                    previous_node = Some((x, z));
+                    previous_node = Some(pt);
                }

                // Flood-fill the interior area for parking or fountains
@@ -154,10 +204,12 @@ pub fn generate_amenities(
                        flood_fill_area(&polygon_coords, args.timeout.as_ref());

                    for (x, z) in flood_area {
+                        let pt = XZPoint::new(x, z);
+                        let y = ground.level(pt);
                        editor.set_block(
                            block_type,
                            x,
-                            ground_level,
+                            y,
                            z,
                            Some(&[BLACK_CONCRETE, GRAY_CONCRETE]),
                            None,
@@ -168,7 +220,7 @@ pub fn generate_amenities(
                            editor.set_block(
                                LIGHT_GRAY_CONCRETE,
                                x,
-                                ground_level,
+                                y,
                                z,
                                Some(&[BLACK_CONCRETE, GRAY_CONCRETE]),
                                None,
--- a/src/element_processing/barriers.rs
+++ b/src/element_processing/barriers.rs
@@ -1,63 +1,117 @@
 use crate::block_definitions::*;
 use crate::bresenham::bresenham_line;
+use crate::cartesian::XZPoint;
+use crate::ground::Ground;
 use crate::osm_parser::ProcessedElement;
 use crate::world_editor::WorldEditor;

-pub fn generate_barriers(editor: &mut WorldEditor, element: &ProcessedElement, ground_level: i32) {
-    if let Some(barrier_type) = element.tags().get("barrier") {
-        if barrier_type == "bollard" {
+pub fn generate_barriers(editor: &mut WorldEditor, element: &ProcessedElement, ground: &Ground) {
+    // Default values
+    let mut barrier_material: Block = COBBLESTONE_WALL;
+    let mut barrier_height: i32 = 2;
+
+    match element.tags().get("barrier").map(|s| s.as_str()) {
+        Some("bollard") => {
            if let ProcessedElement::Node(node) = element {
                editor.set_block(
                    COBBLESTONE_WALL,
                    node.x,
-                    ground_level + 1,
+                    ground.level(node.xz()) + 1,
                    node.z,
                    None,
                    None,
                );
                // Place bollard
            }
-        } else if let ProcessedElement::Way(way) = element {
-            // Determine wall height
-            let wall_height: i32 = element
-                .tags()
-                .get("height")
-                .and_then(|height: &String| height.parse::<f32>().ok())
-                .map(|height: f32| f32::min(3.0, height).round() as i32)
-                .unwrap_or(2); // Default height is 2 if not specified or invalid
+            return;
+        }
+        Some("kerb") => {
+            // Ignore kerbs
+            return;
+        }
+        Some("hedge") => {
+            barrier_material = OAK_LEAVES;
+            barrier_height = 2;
+        }
+        Some("fence") => {
+            // Handle fence sub-types
+            match element.tags().get("fence_type").map(|s| s.as_str()) {
+                Some("railing" | "bars" | "krest") => {
+                    barrier_material = STONE_BRICK_WALL;
+                    barrier_height = 1;
+                }
+                Some("chain_link" | "metal" | "wire" | "barbed_wire" | "corrugated_metal") => {
+                    barrier_material = STONE_BRICK_WALL;
+                    barrier_height = 2;
+                }
+                Some("slatted" | "paling") => {
+                    barrier_material = OAK_FENCE;
+                    barrier_height = 1;
+                }
+                Some("wood" | "split_rail" | "panel" | "pole") => {
+                    barrier_material = OAK_FENCE;
+                    barrier_height = 2;
+                }
+                Some("concrete") => {
+                    barrier_material = ANDESITE_WALL;
+                    barrier_height = 2;
+                }
+                Some("glass") => {
+                    barrier_material = GLASS;
+                    barrier_height = 1;
+                }
+                _ => {}
+            }
+        }
+        _ => {}
+    }
+    // Tagged material takes priority over inferred
+    if let Some(barrier_mat) = element.tags().get("material") {
+        if barrier_mat == "brick" {
+            barrier_material = BRICK;
+        }
+    }

-            // Process nodes to create the barrier wall
-            for i in 1..way.nodes.len() {
-                let prev: &crate::osm_parser::ProcessedNode = &way.nodes[i - 1];
-                let x1: i32 = prev.x;
-                let z1: i32 = prev.z;
+    if let ProcessedElement::Way(way) = element {
+        // Determine wall height
+        let wall_height: i32 = element
+            .tags()
+            .get("height")
+            .and_then(|height: &String| height.parse::<f32>().ok())
+            .map(|height: f32| f32::min(3.0, height).round() as i32)
+            .unwrap_or(barrier_height);

-                let cur: &crate::osm_parser::ProcessedNode = &way.nodes[i];
-                let x2: i32 = cur.x;
-                let z2: i32 = cur.z;
+        // Process nodes to create the barrier wall
+        for i in 1..way.nodes.len() {
+            let prev: &crate::osm_parser::ProcessedNode = &way.nodes[i - 1];
+            let x1: i32 = prev.x;
+            let z1: i32 = prev.z;

-                // Generate the line of coordinates between the two nodes
-                let bresenham_points: Vec<(i32, i32, i32)> =
-                    bresenham_line(x1, ground_level, z1, x2, ground_level, z2);
+            let cur: &crate::osm_parser::ProcessedNode = &way.nodes[i];
+            let x2: i32 = cur.x;
+            let z2: i32 = cur.z;

-                for (bx, _, bz) in bresenham_points {
-                    // Build the barrier wall to the specified height
-                    for y in (ground_level + 1)..=(ground_level + wall_height) {
-                        editor.set_block(COBBLESTONE_WALL, bx, y, bz, None, None);
-                        // Barrier wall
-                    }
+            // Generate the line of coordinates between the two nodes
+            let bresenham_points: Vec<(i32, i32, i32)> = bresenham_line(x1, 0, z1, x2, 0, z2);

-                    // Add an optional top to the barrier if the height is more than 1
-                    if wall_height > 1 {
-                        editor.set_block(
-                            STONE_BRICK_SLAB,
-                            bx,
-                            ground_level + wall_height + 1,
-                            bz,
-                            None,
-                            None,
-                        ); // Top of the barrier
-                    }
+            for (bx, _, bz) in bresenham_points {
+                // Build the barrier wall to the specified height
+                let ground_level = ground.level(XZPoint::new(bx, bz));
+                for y in (ground_level + 1)..=(ground_level + wall_height) {
+                    editor.set_block(barrier_material, bx, y, bz, None, None);
+                    // Barrier wall
+                }
+
+                // Add an optional top to the barrier if the height is more than 1
+                if wall_height > 1 {
+                    editor.set_block(
+                        STONE_BRICK_SLAB,
+                        bx,
+                        ground_level + wall_height + 1,
+                        bz,
+                        None,
+                        None,
+                    ); // Top of the barrier
                }
            }
        }
--- a/src/element_processing/bridges.rs
+++ b/src/element_processing/bridges.rs
@@ -1,5 +1,6 @@
 use crate::block_definitions::*;
 use crate::bresenham::bresenham_line;
+//use crate::ground::Ground;
 use crate::osm_parser::ProcessedWay;
 use crate::world_editor::WorldEditor;

--- a/src/element_processing/buildings.rs
+++ b/src/element_processing/buildings.rs
@@ -1,8 +1,10 @@
 use crate::args::Args;
 use crate::block_definitions::*;
 use crate::bresenham::bresenham_line;
+use crate::cartesian::XZPoint;
 use crate::colors::{color_text_to_rgb_tuple, rgb_distance, RGBTuple};
 use crate::floodfill::flood_fill_area;
+use crate::ground::Ground;
 use crate::osm_parser::{ProcessedMemberRole, ProcessedRelation, ProcessedWay};
 use crate::world_editor::WorldEditor;
 use rand::Rng;
@@ -12,21 +14,24 @@ use std::time::Duration;
 pub fn generate_buildings(
    editor: &mut WorldEditor,
    element: &ProcessedWay,
-    ground_level: i32,
+    ground: &Ground,
    args: &Args,
    relation_levels: Option<i32>,
 ) {
-    // Adjust starting height based on building:min_level
-    let start_level = if let Some(min_level_str) = element.tags.get("building:min_level") {
-        if let Ok(min_level) = min_level_str.parse::<i32>() {
-            ground_level + (min_level * 4) // Each level is 4 blocks high
-        } else {
-            ground_level
-        }
-    } else {
-        ground_level
+    let Some(base_y) = ground.min_level(element.nodes.iter().map(|n| n.xz())) else {
+        return;
    };

+    // Get min_level first so we can use it both for start_level and building height calculations
+    let min_level = if let Some(min_level_str) = element.tags.get("building:min_level") {
+        min_level_str.parse::<i32>().unwrap_or(0)
+    } else {
+        0
+    };
+
+    // Calculate starting level using base_y and min_level
+    let start_level = base_y + (min_level * 4);
+
    let mut previous_node: Option<(i32, i32)> = None;
    let mut corner_addup: (i32, i32, i32) = (0, 0, 0);
    let mut current_building: Vec<(i32, i32)> = vec![];
@@ -57,7 +62,23 @@ pub fn generate_buildings(
            })
        })
        .flatten()
-        .unwrap_or_else(|| building_floor_variations()[variation_index_floor]);
+        .unwrap_or_else(|| {
+            if let Some(building_type) = element
+                .tags
+                .get("building")
+                .or_else(|| element.tags.get("building:part"))
+            {
+                //Random roof color only for single houses
+                match building_type.as_str() {
+                    "yes" | "house" | "detached" | "static_caravan" | "semidetached_house"
+                    | "bungalow" | "manor" | "villa" => {
+                        return building_floor_variations()[variation_index_floor];
+                    }
+                    _ => return LIGHT_GRAY_CONCRETE,
+                }
+            }
+            LIGHT_GRAY_CONCRETE
+        });
    let window_block: Block = WHITE_STAINED_GLASS;

    // Set to store processed flood fill points
@@ -81,8 +102,10 @@ pub fn generate_buildings(
    // Determine building height from tags
    if let Some(levels_str) = element.tags.get("building:levels") {
        if let Ok(levels) = levels_str.parse::<i32>() {
-            if levels >= 1 {
-                building_height = ((levels * 4 + 2) as f64 * scale_factor) as i32;
+            let lev = levels - min_level;
+
+            if lev >= 1 {
+                building_height = ((lev * 4 + 2) as f64 * scale_factor) as i32;
                building_height = building_height.max(3);
            }
        }
@@ -117,14 +140,22 @@ pub fn generate_buildings(
                let x: i32 = node.x;
                let z: i32 = node.z;

-                for y in 1..=4 {
-                    editor.set_block(OAK_FENCE, x, ground_level + y, z, None, None);
+                let Some(y) = ground.min_level(element.nodes.iter().map(|n| n.xz())) else {
+                    return;
+                };
+
+                for shelter_y in 1..=4 {
+                    editor.set_block(OAK_FENCE, x, shelter_y + y, z, None, None);
                }
-                editor.set_block(roof_block, x, ground_level + 5, z, None, None);
+                editor.set_block(roof_block, x, y + 5, z, None, None);
            }

            // Flood fill the roof area
-            let roof_height: i32 = ground_level + 5;
+            let Some(y) = ground.min_level(element.nodes.iter().map(|n| n.xz())) else {
+                return;
+            };
+
+            let roof_height: i32 = y + 5;
            for (x, z) in roof_area.iter() {
                editor.set_block(roof_block, *x, roof_height, *z, None, None);
            }
@@ -151,9 +182,13 @@ pub fn generate_buildings(
                let floor_area: Vec<(i32, i32)> =
                    flood_fill_area(&polygon_coords, args.timeout.as_ref());

+                let Some(y) = ground.min_level(element.nodes.iter().map(|n| n.xz())) else {
+                    return;
+                };
+
                // Fill the floor area
                for (x, z) in floor_area.iter() {
-                    editor.set_block(ground_block, *x, ground_level, *z, None, None);
+                    editor.set_block(ground_block, *x, y, *z, None, None);
                }

                // Place fences and roof slabs at each corner node directly
@@ -161,15 +196,14 @@ pub fn generate_buildings(
                    let x: i32 = node.x;
                    let z: i32 = node.z;

-                    for y in 1..=4 {
-                        editor.set_block(ground_block, x, ground_level, z, None, None);
-                        editor.set_block(OAK_FENCE, x, ground_level + y, z, None, None);
+                    for dy in 1..=4 {
+                        editor.set_block(OAK_FENCE, x, y + dy, z, None, None);
                    }
-                    editor.set_block(roof_block, x, ground_level + 5, z, None, None);
+                    editor.set_block(roof_block, x, y + 5, z, None, None);
                }

                // Flood fill the roof area
-                let roof_height: i32 = ground_level + 5;
+                let roof_height: i32 = y + 5;
                for (x, z) in floor_area.iter() {
                    editor.set_block(roof_block, *x, roof_height, *z, None, None);
                }
@@ -180,7 +214,7 @@ pub fn generate_buildings(
            || element
                .tags
                .get("parking")
-                .map_or(false, |p| p == "multi-storey")
+                .is_some_and(|p| p == "multi-storey")
        {
            // Parking building structure

@@ -195,6 +229,10 @@ pub fn generate_buildings(
            let floor_area: Vec<(i32, i32)> =
                flood_fill_area(&polygon_coords, args.timeout.as_ref());

+            let Some(ground_level) = ground.min_level(element.nodes.iter().map(|n| n.xz())) else {
+                return;
+            };
+
            for level in 0..=(building_height / 4) {
                let current_level = ground_level + level * 4;

@@ -267,6 +305,9 @@ pub fn generate_buildings(

            return;
        } else if building_type == "roof" {
+            let Some(ground_level) = ground.min_level(element.nodes.iter().map(|n| n.xz())) else {
+                return;
+            };
            let roof_height: i32 = ground_level + 5;

            // Iterate through the nodes to create the roof edges using Bresenham's line algorithm
@@ -317,7 +358,7 @@ pub fn generate_buildings(
                building_height = ((23.0 * scale_factor) as i32).max(3);
            }
        } else if building_type == "bridge" {
-            generate_bridge(editor, element, ground_level, args.timeout.as_ref());
+            generate_bridge(editor, element, ground, args.timeout.as_ref());
            return;
        }
    }
@@ -329,24 +370,22 @@ pub fn generate_buildings(

        if let Some(prev) = previous_node {
            // Calculate walls and corners using Bresenham line
-            let bresenham_points: Vec<(i32, i32, i32)> =
-                bresenham_line(prev.0, start_level, prev.1, x, start_level, z);
+            let bresenham_points = bresenham_line(prev.0, start_level, prev.1, x, start_level, z);
            for (bx, _, bz) in bresenham_points {
                for h in (start_level + 1)..=(start_level + building_height) {
                    if element.nodes[0].x == bx && element.nodes[0].x == bz {
-                        editor.set_block(corner_block, bx, h, bz, None, None); // Corner block
+                        // Corner Block
+                        editor.set_block(corner_block, bx, h, bz, None, None);
                    } else {
                        // Add windows to the walls at intervals
                        if h > start_level + 1 && h % 4 != 0 && (bx + bz) % 6 < 3 {
                            editor.set_block(window_block, bx, h, bz, None, None);
-                        // Window block
                        } else {
                            editor.set_block(wall_block, bx, h, bz, None, None);
-                            // Wall block
                        }
                    }
                }
-                // Ceiling cobblestone
+
                editor.set_block(
                    COBBLESTONE,
                    bx,
@@ -359,9 +398,9 @@ pub fn generate_buildings(
                if args.winter {
                    editor.set_block(
                        SNOW_LAYER,
-                        x,
+                        bx,
                        start_level + building_height + 2,
-                        z,
+                        bz,
                        None,
                        None,
                    );
@@ -386,23 +425,24 @@ pub fn generate_buildings(

        for (x, z) in floor_area {
            if processed_points.insert((x, z)) {
-                editor.set_block(floor_block, x, start_level, z, None, None); // Set floor
+                // Set floor at start_level
+                editor.set_block(floor_block, x, start_level, z, None, None);

                // Set level ceilings if height > 4
                if building_height > 4 {
                    for h in (start_level + 2 + 4..start_level + building_height).step_by(4) {
                        if x % 6 == 0 && z % 6 == 0 {
-                            editor.set_block(GLOWSTONE, x, h, z, None, None); // Light fixtures
+                            // Light fixtures
+                            editor.set_block(GLOWSTONE, x, h, z, None, None);
                        } else {
                            editor.set_block(floor_block, x, h, z, None, None);
                        }
                    }
                } else if x % 6 == 0 && z % 6 == 0 {
                    editor.set_block(GLOWSTONE, x, start_level + building_height, z, None, None);
-                    // Light fixtures
                }

-                // Set the house ceiling
+                // Set ceiling at proper height
                editor.set_block(
                    floor_block,
                    x,
@@ -430,7 +470,7 @@ pub fn generate_buildings(
 pub fn generate_building_from_relation(
    editor: &mut WorldEditor,
    relation: &ProcessedRelation,
-    ground_level: i32,
+    ground: &Ground,
    args: &Args,
 ) {
    // Extract levels from relation tags
@@ -443,13 +483,7 @@ pub fn generate_building_from_relation(
    // Process the outer way to create the building walls
    for member in &relation.members {
        if member.role == ProcessedMemberRole::Outer {
-            generate_buildings(
-                editor,
-                &member.way,
-                ground_level,
-                args,
-                Some(relation_levels),
-            );
+            generate_buildings(editor, &member.way, ground, args, Some(relation_levels));
        }
    }

@@ -483,17 +517,9 @@ fn find_nearest_block_in_color_map(
 fn generate_bridge(
    editor: &mut WorldEditor,
    element: &ProcessedWay,
-    base_level: i32,
+    ground: &Ground,
    floodfill_timeout: Option<&Duration>,
 ) {
-    // Calculate the bridge level
-    let mut bridge_level: i32 = base_level;
-    if let Some(level_str) = element.tags.get("level") {
-        if let Ok(level) = level_str.parse::<i32>() {
-            bridge_level += (level * 3) + 1; // Adjust height by levels
-        }
-    }
-
    let floor_block: Block = STONE;
    let railing_block: Block = STONE_BRICKS;

@@ -503,26 +529,56 @@ fn generate_bridge(
        let x: i32 = node.x;
        let z: i32 = node.z;

+        // Calculate the dynamic bridge level based on the ground level
+        let mut bridge_level = ground.level(XZPoint::new(x, z));
+
+        // Adjust the bridge level based on the "level" tag
+        if let Some(level_str) = element.tags.get("level") {
+            if let Ok(level) = level_str.parse::<i32>() {
+                bridge_level += (level * 3) + 1;
+            }
+        }
+
        // Create bridge path using Bresenham's line
        if let Some(prev) = previous_node {
            let bridge_points: Vec<(i32, i32, i32)> =
                bresenham_line(prev.0, bridge_level, prev.1, x, bridge_level, z);
+
            for (bx, by, bz) in bridge_points {
+                // Place railing blocks
                editor.set_block(railing_block, bx, by + 1, bz, None, None);
                editor.set_block(railing_block, bx, by, bz, None, None);
            }
        }
+
        previous_node = Some((x, z));
    }

    // Flood fill the area between the bridge path nodes
-    let polygon_coords: Vec<(i32, i32)> = element
-        .nodes
-        .iter()
-        .map(|n: &crate::osm_parser::ProcessedNode| (n.x, n.z))
-        .collect();
-    let bridge_area: Vec<(i32, i32)> = flood_fill_area(&polygon_coords, floodfill_timeout);
-    for (x, z) in bridge_area {
-        editor.set_block(floor_block, x, bridge_level, z, None, None);
+    let polygon_coords: Vec<XZPoint> = element.nodes.iter().map(|n| n.xz()).collect();
+    let bridge_area: Vec<XZPoint> = flood_fill_area(
+        &polygon_coords
+            .iter()
+            .map(|pt| (pt.x, pt.z))
+            .collect::<Vec<_>>(),
+        floodfill_timeout,
+    )
+    .into_iter()
+    .map(|(x, z)| XZPoint::new(x, z))
+    .collect();
+
+    for pt in bridge_area {
+        // Calculate the bridge's floor level dynamically
+        let mut bridge_level = ground.level(pt);
+
+        // Adjust the bridge level based on the "level" tag
+        if let Some(level_str) = element.tags.get("level") {
+            if let Ok(level) = level_str.parse::<i32>() {
+                bridge_level += (level * 3) + 1;
+            }
+        }
+
+        // Place floor blocks
+        editor.set_block(floor_block, pt.x, bridge_level, pt.z, None, None);
    }
 }
--- a/src/element_processing/doors.rs
+++ b/src/element_processing/doors.rs
@@ -1,8 +1,10 @@
 use crate::block_definitions::*;
+use crate::cartesian::XZPoint;
+use crate::ground::Ground;
 use crate::osm_parser::ProcessedNode;
 use crate::world_editor::WorldEditor;

-pub fn generate_doors(editor: &mut WorldEditor, element: &ProcessedNode, ground_level: i32) {
+pub fn generate_doors(editor: &mut WorldEditor, element: &ProcessedNode, ground: &Ground) {
    // Check if the element is a door or entrance
    if element.tags.contains_key("door") || element.tags.contains_key("entrance") {
        // Check for the "level" tag and skip doors that are not at ground level
@@ -17,6 +19,9 @@ pub fn generate_doors(editor: &mut WorldEditor, element: &ProcessedNode, ground_
        let x: i32 = element.x;
        let z: i32 = element.z;

+        // Calculate the dynamic ground level
+        let ground_level = ground.level(XZPoint::new(x, z));
+
        // Set the ground block and the door blocks
        editor.set_block(GRAY_CONCRETE, x, ground_level, z, None, None);
        editor.set_block(DARK_OAK_DOOR_LOWER, x, ground_level + 1, z, None, None);
--- a/src/element_processing/highways.rs
+++ b/src/element_processing/highways.rs
@@ -1,14 +1,16 @@
 use crate::args::Args;
 use crate::block_definitions::*;
 use crate::bresenham::bresenham_line;
+use crate::cartesian::XZPoint;
 use crate::floodfill::flood_fill_area;
+use crate::ground::Ground;
 use crate::osm_parser::{ProcessedElement, ProcessedWay};
 use crate::world_editor::WorldEditor;

 pub fn generate_highways(
    editor: &mut WorldEditor,
    element: &ProcessedElement,
-    ground_level: i32,
+    ground: &Ground,
    args: &Args,
 ) {
    if let Some(highway_type) = element.tags().get("highway") {
@@ -16,11 +18,12 @@ pub fn generate_highways(
            // Handle street lamps
            if let ProcessedElement::Node(first_node) = element {
                let x: i32 = first_node.x;
+                let y: i32 = ground.level(first_node.xz());
                let z: i32 = first_node.z;
-                for y in 1..=4 {
-                    editor.set_block(OAK_FENCE, x, ground_level + y, z, None, None);
+                for dy in 1..=4 {
+                    editor.set_block(OAK_FENCE, x, y + dy, z, None, None);
                }
-                editor.set_block(GLOWSTONE, x, ground_level + 5, z, None, None);
+                editor.set_block(GLOWSTONE, x, y + 5, z, None, None);
            }
        } else if highway_type == "crossing" {
            // Handle traffic signals for crossings
@@ -28,17 +31,19 @@ pub fn generate_highways(
                if crossing_type == "traffic_signals" {
                    if let ProcessedElement::Node(node) = element {
                        let x: i32 = node.x;
+                        let y: i32 = ground.level(node.xz());
                        let z: i32 = node.z;
-                        for y in 1..=3 {
-                            editor.set_block(COBBLESTONE_WALL, x, ground_level + y, z, None, None);
+
+                        for dy in 1..=3 {
+                            editor.set_block(COBBLESTONE_WALL, x, y + dy, z, None, None);
                        }

-                        editor.set_block(GREEN_WOOL, x, ground_level + 4, z, None, None);
-                        editor.set_block(YELLOW_WOOL, x, ground_level + 5, z, None, None);
-                        editor.set_block(RED_WOOL, x, ground_level + 6, z, None, None);
+                        editor.set_block(GREEN_WOOL, x, y + 4, z, None, None);
+                        editor.set_block(YELLOW_WOOL, x, y + 5, z, None, None);
+                        editor.set_block(RED_WOOL, x, y + 6, z, None, None);

                        if args.winter {
-                            editor.set_block(SNOW_LAYER, x, ground_level + 7, z, None, None);
+                            editor.set_block(SNOW_LAYER, x, y + 7, z, None, None);
                        }
                    }
                }
@@ -46,19 +51,20 @@ pub fn generate_highways(
        } else if highway_type == "bus_stop" {
            // Handle bus stops
            if let ProcessedElement::Node(node) = element {
-                let x: i32 = node.x;
-                let z: i32 = node.z;
-                for y in 1..=3 {
-                    editor.set_block(COBBLESTONE_WALL, x, ground_level + y, z, None, None);
+                let x = node.x;
+                let y = ground.level(node.xz());
+                let z = node.z;
+                for dy in 1..=3 {
+                    editor.set_block(COBBLESTONE_WALL, x, y + dy, z, None, None);
                }

-                editor.set_block(WHITE_WOOL, x, ground_level + 4, z, None, None);
-                editor.set_block(WHITE_WOOL, x + 1, ground_level + 4, z, None, None);
+                editor.set_block(WHITE_WOOL, x, y + 4, z, None, None);
+                editor.set_block(WHITE_WOOL, x + 1, y + 4, z, None, None);
            }
        } else if element
            .tags()
            .get("area")
-            .map_or(false, |v: &String| v == "yes")
+            .is_some_and(|v: &String| v == "yes")
        {
            let ProcessedElement::Way(way) = element else {
                return;
@@ -99,7 +105,14 @@ pub fn generate_highways(
                flood_fill_area(&polygon_coords, args.timeout.as_ref());

            for (x, z) in filled_area {
-                editor.set_block(surface_block, x, ground_level, z, None, None);
+                editor.set_block(
+                    surface_block,
+                    x,
+                    ground.level(XZPoint::new(x, z)),
+                    z,
+                    None,
+                    None,
+                );
            }
        } else {
            let mut previous_node: Option<(i32, i32)> = None;
@@ -132,7 +145,10 @@ pub fn generate_highways(
                }
                "motorway" | "primary" => {
                    block_range = 5;
-                    add_stripe = true; // Add stripes for motorways and primary roads
+                    add_stripe = true;
+                }
+                "tertiary" => {
+                    add_stripe = true;
                }
                "track" => {
                    block_range = 1;
@@ -166,8 +182,10 @@ pub fn generate_highways(
                    let z2: i32 = node.z;

                    // Generate the line of coordinates between the two nodes
+                    // we don't care about the y because it's going to get overwritten
+                    // I'm not sure if we'll keep it this way
                    let bresenham_points: Vec<(i32, i32, i32)> =
-                        bresenham_line(x1, ground_level, z1, x2, ground_level, z2);
+                        bresenham_line(x1, 0, z1, x2, 0, z2);

                    // Variables to manage dashed line pattern
                    let mut stripe_length: i32 = 0;
@@ -192,7 +210,7 @@ pub fn generate_highways(
                                            editor.set_block(
                                                WHITE_CONCRETE,
                                                set_x,
-                                                ground_level,
+                                                ground.level(XZPoint::new(set_x, set_z)),
                                                set_z,
                                                Some(&[BLACK_CONCRETE]),
                                                None,
@@ -201,7 +219,7 @@ pub fn generate_highways(
                                            editor.set_block(
                                                BLACK_CONCRETE,
                                                set_x,
-                                                ground_level,
+                                                ground.level(XZPoint::new(set_x, set_z)),
                                                set_z,
                                                None,
                                                None,
@@ -211,7 +229,7 @@ pub fn generate_highways(
                                        editor.set_block(
                                            WHITE_CONCRETE,
                                            set_x,
-                                            ground_level,
+                                            ground.level(XZPoint::new(set_x, set_z)),
                                            set_z,
                                            Some(&[BLACK_CONCRETE]),
                                            None,
@@ -220,7 +238,7 @@ pub fn generate_highways(
                                        editor.set_block(
                                            BLACK_CONCRETE,
                                            set_x,
-                                            ground_level,
+                                            ground.level(XZPoint::new(set_x, set_z)),
                                            set_z,
                                            None,
                                            None,
@@ -230,7 +248,7 @@ pub fn generate_highways(
                                    editor.set_block(
                                        block_type,
                                        set_x,
-                                        ground_level,
+                                        ground.level(XZPoint::new(set_x, set_z)),
                                        set_z,
                                        None,
                                        Some(&[BLACK_CONCRETE, WHITE_CONCRETE]),
@@ -247,7 +265,7 @@ pub fn generate_highways(
                                editor.set_block(
                                    WHITE_CONCRETE,
                                    stripe_x,
-                                    ground_level,
+                                    ground.level(XZPoint::new(stripe_x, stripe_z)),
                                    stripe_z,
                                    Some(&[BLACK_CONCRETE]),
                                    None,
@@ -269,48 +287,62 @@ pub fn generate_highways(
 }

 /// Generates a siding using stone brick slabs
-pub fn generate_siding(editor: &mut WorldEditor, element: &ProcessedWay, ground_level: i32) {
-    let mut previous_node: Option<(i32, i32)> = None;
+pub fn generate_siding(editor: &mut WorldEditor, element: &ProcessedWay, ground: &Ground) {
+    let mut previous_node: Option<XZPoint> = None;
    let siding_block: Block = STONE_BRICK_SLAB;

    for node in &element.nodes {
-        let x: i32 = node.x;
-        let z: i32 = node.z;
+        let current_node = node.xz();

        // Draw the siding using Bresenham's line algorithm between nodes
-        if let Some(prev) = previous_node {
-            let bresenham_points: Vec<(i32, i32, i32)> =
-                bresenham_line(prev.0, ground_level + 1, prev.1, x, ground_level + 1, z);
-            for (bx, by, bz) in bresenham_points {
+        if let Some(prev_node) = previous_node {
+            let bresenham_points: Vec<(i32, i32, i32)> = bresenham_line(
+                prev_node.x,
+                0,
+                prev_node.z,
+                current_node.x,
+                0,
+                current_node.z,
+            );
+
+            for (bx, _, bz) in bresenham_points {
+                let ground_level = ground.level(XZPoint::new(bx, bz)) + 1;
+
                if !editor.check_for_block(
                    bx,
-                    by - 1,
+                    ground_level - 1,
                    bz,
                    None,
                    Some(&[BLACK_CONCRETE, WHITE_CONCRETE]),
                ) {
-                    editor.set_block(siding_block, bx, by, bz, None, None);
+                    editor.set_block(siding_block, bx, ground_level, bz, None, None);
                }
            }
        }

-        previous_node = Some((x, z));
+        previous_node = Some(current_node);
    }
 }

 /// Generates an aeroway
-pub fn generate_aeroway(editor: &mut WorldEditor, way: &ProcessedWay, ground_level: i32) {
+pub fn generate_aeroway(editor: &mut WorldEditor, way: &ProcessedWay, ground: &Ground) {
    let mut previous_node: Option<(i32, i32)> = None;
    let surface_block = LIGHT_GRAY_CONCRETE;

    for node in &way.nodes {
        if let Some(prev) = previous_node {
-            let points = bresenham_line(prev.0, ground_level, prev.1, node.x, ground_level, node.z);
+            let (x1, z1) = prev;
+            let x2 = node.x;
+            let z2 = node.z;
+            let points = bresenham_line(x1, 0, z1, x2, 0, z2);

-            for (x, y, z) in points {
-                for dx in -12..=1 {
-                    for dz in -12..=1 {
-                        editor.set_block(surface_block, x + dx, y, z + dz, None, None);
+            for (x, _, z) in points {
+                for dx in -12..=12 {
+                    for dz in -12..=12 {
+                        let set_x = x + dx;
+                        let set_z = z + dz;
+                        let y = ground.level(XZPoint::new(set_x, set_z));
+                        editor.set_block(surface_block, set_x, y, set_z, None, None);
                    }
                }
            }
--- a/src/element_processing/landuse.rs
+++ b/src/element_processing/landuse.rs
@@ -1,8 +1,9 @@
 use crate::args::Args;
 use crate::block_definitions::*;
-use crate::bresenham::bresenham_line;
+use crate::cartesian::XZPoint;
 use crate::element_processing::tree::create_tree;
 use crate::floodfill::flood_fill_area;
+use crate::ground::Ground;
 use crate::osm_parser::ProcessedWay;
 use crate::world_editor::WorldEditor;
 use rand::Rng;
@@ -10,13 +11,9 @@ use rand::Rng;
 pub fn generate_landuse(
    editor: &mut WorldEditor,
    element: &ProcessedWay,
-    ground_level: i32,
+    ground: &Ground,
    args: &Args,
 ) {
-    let mut previous_node: Option<(i32, i32)> = None;
-    let mut corner_addup: (i32, i32, i32) = (0, 0, 0);
-    let mut current_landuse: Vec<(i32, i32)> = vec![];
-
    // Determine block type based on landuse tag
    let binding: String = "".to_string();
    let landuse_tag: &String = element.tags.get("landuse").unwrap_or(&binding);
@@ -56,318 +53,293 @@ pub fn generate_landuse(
        }
    };

-    let bresenham_block: Block = if args.winter { SNOW_BLOCK } else { GRASS_BLOCK };
+    // Get the area of the landuse element
+    let polygon_coords: Vec<(i32, i32)> = element.nodes.iter().map(|n| (n.x, n.z)).collect();
+    let floor_area: Vec<(i32, i32)> = flood_fill_area(&polygon_coords, args.timeout.as_ref());

-    // Process landuse nodes to fill the area
-    for node in &element.nodes {
-        let x: i32 = node.x;
-        let z: i32 = node.z;
+    let mut rng: rand::prelude::ThreadRng = rand::thread_rng();

-        if let Some(prev) = previous_node {
-            // Generate the line of coordinates between the two nodes
-            let bresenham_points: Vec<(i32, i32, i32)> =
-                bresenham_line(prev.0, ground_level, prev.1, x, ground_level, z);
-            for (bx, _, bz) in bresenham_points {
-                editor.set_block(bresenham_block, bx, ground_level, bz, None, None);
-            }
-
-            current_landuse.push((x, z));
-            corner_addup = (corner_addup.0 + x, corner_addup.1 + z, corner_addup.2 + 1);
+    for (x, z) in floor_area {
+        let ground_level = ground.level(XZPoint::new(x, z));
+        if landuse_tag == "traffic_island" {
+            editor.set_block(block_type, x, ground_level + 1, z, None, None);
+        } else if landuse_tag == "construction" || landuse_tag == "railway" {
+            editor.set_block(block_type, x, ground_level, z, None, Some(&[SPONGE]));
+        } else {
+            editor.set_block(block_type, x, ground_level, z, None, None);
        }

-        previous_node = Some((x, z));
-    }
-
-    // If there are landuse nodes, flood-fill the area
-    if !current_landuse.is_empty() {
-        let polygon_coords: Vec<(i32, i32)> = element.nodes.iter().map(|n| (n.x, n.z)).collect();
-        let floor_area: Vec<(i32, i32)> = flood_fill_area(&polygon_coords, args.timeout.as_ref());
-
-        let mut rng: rand::prelude::ThreadRng = rand::thread_rng();
-
-        for (x, z) in floor_area {
-            if landuse_tag == "traffic_island" {
-                editor.set_block(block_type, x, ground_level + 1, z, None, None);
-            } else if landuse_tag == "construction" || landuse_tag == "railway" {
-                editor.set_block(block_type, x, ground_level, z, None, Some(&[SPONGE]));
-            } else {
-                editor.set_block(block_type, x, ground_level, z, None, None);
-            }
-
-            // Add specific features for different landuse types
-            match landuse_tag.as_str() {
-                "cemetery" => {
-                    if (x % 3 == 0) && (z % 3 == 0) {
-                        let random_choice: i32 = rng.gen_range(0..100);
-                        if random_choice < 15 {
-                            // Place graves
-                            if editor.check_for_block(x, ground_level, z, Some(&[PODZOL]), None) {
-                                if rng.gen_bool(0.5) {
-                                    editor.set_block(
-                                        COBBLESTONE,
-                                        x - 1,
-                                        ground_level + 1,
-                                        z,
-                                        None,
-                                        None,
-                                    );
-                                    editor.set_block(
-                                        STONE_BRICK_SLAB,
-                                        x - 1,
-                                        ground_level + 2,
-                                        z,
-                                        None,
-                                        None,
-                                    );
-                                    editor.set_block(
-                                        STONE_BRICK_SLAB,
-                                        x,
-                                        ground_level + 1,
-                                        z,
-                                        None,
-                                        None,
-                                    );
-                                    editor.set_block(
-                                        STONE_BRICK_SLAB,
-                                        x + 1,
-                                        ground_level + 1,
-                                        z,
-                                        None,
-                                        None,
-                                    );
-                                } else {
-                                    editor.set_block(
-                                        COBBLESTONE,
-                                        x,
-                                        ground_level + 1,
-                                        z - 1,
-                                        None,
-                                        None,
-                                    );
-                                    editor.set_block(
-                                        STONE_BRICK_SLAB,
-                                        x,
-                                        ground_level + 2,
-                                        z - 1,
-                                        None,
-                                        None,
-                                    );
-                                    editor.set_block(
-                                        STONE_BRICK_SLAB,
-                                        x,
-                                        ground_level + 1,
-                                        z,
-                                        None,
-                                        None,
-                                    );
-                                    editor.set_block(
-                                        STONE_BRICK_SLAB,
-                                        x,
-                                        ground_level + 1,
-                                        z + 1,
-                                        None,
-                                        None,
-                                    );
-                                }
-                            }
-                        } else if random_choice < 30 {
-                            if editor.check_for_block(x, ground_level, z, Some(&[PODZOL]), None) {
-                                editor.set_block(RED_FLOWER, x, ground_level + 1, z, None, None);
-                            }
-                        } else if random_choice < 33 {
-                            create_tree(
-                                editor,
-                                x,
-                                ground_level + 1,
-                                z,
-                                rng.gen_range(1..=3),
-                                args.winter,
-                            );
-                        }
-                    }
-                }
-                "forest" => {
-                    if !editor.check_for_block(x, ground_level, z, None, Some(&[WATER])) {
-                        let random_choice: i32 = rng.gen_range(0..21);
-                        if random_choice == 20 {
-                            create_tree(
-                                editor,
-                                x,
-                                ground_level + 1,
-                                z,
-                                rng.gen_range(1..=3),
-                                args.winter,
-                            );
-                        } else if random_choice == 2 {
-                            let flower_block: Block = match rng.gen_range(1..=4) {
-                                1 => RED_FLOWER,
-                                2 => BLUE_FLOWER,
-                                3 => YELLOW_FLOWER,
-                                _ => WHITE_FLOWER,
-                            };
-                            editor.set_block(flower_block, x, ground_level + 1, z, None, None);
-                        } else if random_choice <= 1 {
-                            editor.set_block(GRASS, x, ground_level + 1, z, None, None);
-                        }
-                    }
-                }
-                "farmland" => {
-                    // Check if the current block is not water or another undesired block
-                    if !editor.check_for_block(x, ground_level, z, None, Some(&[WATER])) {
-                        if x % 15 == 0 || z % 15 == 0 {
-                            // Place water on the edges
-                            editor.set_block(WATER, x, ground_level, z, Some(&[FARMLAND]), None);
-                            editor.set_block(
-                                AIR,
-                                x,
-                                ground_level + 1,
-                                z,
-                                Some(&[GRASS, WHEAT, CARROTS, POTATOES]),
-                                None,
-                            );
-                        } else {
-                            // Set the block below as farmland
-                            editor.set_block(FARMLAND, x, ground_level, z, None, None);
-
-                            // If a random condition is met, place a special object
-                            if rng.gen_range(0..76) == 0 {
-                                let special_choice: i32 = rng.gen_range(1..=10);
-                                if special_choice <= 2 {
-                                    create_tree(
-                                        editor,
-                                        x,
-                                        ground_level + 1,
-                                        z,
-                                        rng.gen_range(1..=3),
-                                        args.winter,
-                                    );
-                                } else if special_choice <= 6 {
-                                    editor.set_block(HAY_BALE, x, ground_level + 1, z, None, None);
-                                } else {
-                                    editor.set_block(
-                                        OAK_LEAVES,
-                                        x,
-                                        ground_level + 1,
-                                        z,
-                                        None,
-                                        None,
-                                    );
-                                }
-                            } else {
-                                // Set crops only if the block below is farmland
-                                if editor.check_for_block(
-                                    x,
-                                    ground_level,
+        // Add specific features for different landuse types
+        match landuse_tag.as_str() {
+            "cemetery" => {
+                if (x % 3 == 0) && (z % 3 == 0) {
+                    let random_choice: i32 = rng.gen_range(0..100);
+                    if random_choice < 15 {
+                        // Place graves
+                        if editor.check_for_block(x, ground_level, z, Some(&[PODZOL]), None) {
+                            if rng.gen_bool(0.5) {
+                                editor.set_block(
+                                    COBBLESTONE,
+                                    x - 1,
+                                    ground_level + 1,
                                    z,
-                                    Some(&[FARMLAND]),
                                    None,
-                                ) {
-                                    let crop_choice =
-                                        [WHEAT, CARROTS, POTATOES][rng.gen_range(0..3)];
-                                    editor.set_block(
-                                        crop_choice,
-                                        x,
-                                        ground_level + 1,
-                                        z,
-                                        None,
-                                        None,
-                                    );
-                                }
+                                    None,
+                                );
+                                editor.set_block(
+                                    STONE_BRICK_SLAB,
+                                    x - 1,
+                                    ground_level + 2,
+                                    z,
+                                    None,
+                                    None,
+                                );
+                                editor.set_block(
+                                    STONE_BRICK_SLAB,
+                                    x,
+                                    ground_level + 1,
+                                    z,
+                                    None,
+                                    None,
+                                );
+                                editor.set_block(
+                                    STONE_BRICK_SLAB,
+                                    x + 1,
+                                    ground_level + 1,
+                                    z,
+                                    None,
+                                    None,
+                                );
+                            } else {
+                                editor.set_block(
+                                    COBBLESTONE,
+                                    x,
+                                    ground_level + 1,
+                                    z - 1,
+                                    None,
+                                    None,
+                                );
+                                editor.set_block(
+                                    STONE_BRICK_SLAB,
+                                    x,
+                                    ground_level + 2,
+                                    z - 1,
+                                    None,
+                                    None,
+                                );
+                                editor.set_block(
+                                    STONE_BRICK_SLAB,
+                                    x,
+                                    ground_level + 1,
+                                    z,
+                                    None,
+                                    None,
+                                );
+                                editor.set_block(
+                                    STONE_BRICK_SLAB,
+                                    x,
+                                    ground_level + 1,
+                                    z + 1,
+                                    None,
+                                    None,
+                                );
                            }
                        }
-                    }
-                }
-                "construction" => {
-                    let random_choice: i32 = rng.gen_range(0..1501);
-                    if random_choice < 6 {
-                        editor.set_block(SCAFFOLDING, x, ground_level + 1, z, None, None);
-                        if random_choice < 2 {
-                            editor.set_block(SCAFFOLDING, x, ground_level + 2, z, None, None);
-                            editor.set_block(SCAFFOLDING, x, ground_level + 3, z, None, None);
-                        } else if random_choice < 4 {
-                            editor.set_block(SCAFFOLDING, x, ground_level + 2, z, None, None);
-                            editor.set_block(SCAFFOLDING, x, ground_level + 3, z, None, None);
-                            editor.set_block(SCAFFOLDING, x, ground_level + 4, z, None, None);
-                            editor.set_block(SCAFFOLDING, x, ground_level + 1, z + 1, None, None);
-                        } else {
-                            editor.set_block(SCAFFOLDING, x, ground_level + 2, z, None, None);
-                            editor.set_block(SCAFFOLDING, x, ground_level + 3, z, None, None);
-                            editor.set_block(SCAFFOLDING, x, ground_level + 4, z, None, None);
-                            editor.set_block(SCAFFOLDING, x, ground_level + 5, z, None, None);
-                            editor.set_block(SCAFFOLDING, x - 1, ground_level + 1, z, None, None);
-                            editor.set_block(
-                                SCAFFOLDING,
-                                x + 1,
-                                ground_level + 1,
-                                z - 1,
-                                None,
-                                None,
-                            );
-                        }
                    } else if random_choice < 30 {
-                        let construction_items: [Block; 11] = [
-                            OAK_LOG,
-                            COBBLESTONE,
-                            GRAVEL,
-                            GLOWSTONE,
-                            STONE,
-                            COBBLESTONE_WALL,
-                            BLACK_CONCRETE,
-                            SAND,
-                            OAK_PLANKS,
-                            DIRT,
-                            BRICK,
-                        ];
-                        editor.set_block(
-                            construction_items[rng.gen_range(0..construction_items.len())],
+                        if editor.check_for_block(x, ground_level, z, Some(&[PODZOL]), None) {
+                            editor.set_block(RED_FLOWER, x, ground_level + 1, z, None, None);
+                        }
+                    } else if random_choice < 33 {
+                        create_tree(
+                            editor,
                            x,
                            ground_level + 1,
                            z,
-                            None,
-                            None,
+                            rng.gen_range(1..=3),
+                            args.winter,
                        );
-                    } else if random_choice < 35 {
-                        if random_choice < 30 {
-                            editor.set_block(DIRT, x, ground_level + 1, z, None, None);
-                            editor.set_block(DIRT, x, ground_level + 2, z, None, None);
-                            editor.set_block(DIRT, x + 1, ground_level + 1, z, None, None);
-                            editor.set_block(DIRT, x, ground_level + 1, z + 1, None, None);
-                        } else {
-                            editor.set_block(DIRT, x, ground_level + 1, z, None, None);
-                            editor.set_block(DIRT, x, ground_level + 2, z, None, None);
-                            editor.set_block(DIRT, x - 1, ground_level + 1, z, None, None);
-                            editor.set_block(DIRT, x, ground_level + 1, z - 1, None, None);
-                        }
-                    } else if random_choice < 150 {
-                        editor.set_block(AIR, x, ground_level, z, None, Some(&[SPONGE]));
                    }
                }
-                "grass" => {
-                    if rng.gen_range(1..=7) != 1
-                        && !editor.check_for_block(x, ground_level, z, None, Some(&[WATER]))
-                    {
+            }
+            "forest" => {
+                if !editor.check_for_block(x, ground_level, z, None, Some(&[WATER])) {
+                    let random_choice: i32 = rng.gen_range(0..21);
+                    if random_choice == 20 {
+                        create_tree(
+                            editor,
+                            x,
+                            ground_level + 1,
+                            z,
+                            rng.gen_range(1..=3),
+                            args.winter,
+                        );
+                    } else if random_choice == 2 {
+                        let flower_block: Block = match rng.gen_range(1..=4) {
+                            1 => RED_FLOWER,
+                            2 => BLUE_FLOWER,
+                            3 => YELLOW_FLOWER,
+                            _ => WHITE_FLOWER,
+                        };
+                        editor.set_block(flower_block, x, ground_level + 1, z, None, None);
+                    } else if random_choice <= 1 {
                        editor.set_block(GRASS, x, ground_level + 1, z, None, None);
                    }
                }
-                "meadow" => {
-                    if !editor.check_for_block(x, ground_level, z, None, Some(&[WATER])) {
-                        let random_choice: i32 = rng.gen_range(0..1001);
-                        if random_choice < 5 {
-                            create_tree(
-                                editor,
-                                x,
-                                ground_level + 1,
-                                z,
-                                rng.gen_range(1..=3),
-                                args.winter,
-                            );
-                        } else if random_choice < 800 {
-                            editor.set_block(GRASS, x, ground_level + 1, z, None, None);
+            }
+            "farmland" => {
+                // Check if the current block is not water or another undesired block
+                if !editor.check_for_block(x, ground_level, z, None, Some(&[WATER])) {
+                    if x % 15 == 0 || z % 15 == 0 {
+                        // Place water on the edges
+                        editor.set_block(WATER, x, ground_level, z, Some(&[FARMLAND]), None);
+                        editor.set_block(
+                            AIR,
+                            x,
+                            ground_level + 1,
+                            z,
+                            Some(&[GRASS, WHEAT, CARROTS, POTATOES]),
+                            None,
+                        );
+                    } else {
+                        // Set the block below as farmland
+                        editor.set_block(FARMLAND, x, ground_level, z, None, None);
+
+                        // If a random condition is met, place a special object
+                        if rng.gen_range(0..76) == 0 {
+                            let special_choice: i32 = rng.gen_range(1..=10);
+                            if special_choice <= 2 {
+                                create_tree(
+                                    editor,
+                                    x,
+                                    ground_level + 1,
+                                    z,
+                                    rng.gen_range(1..=3),
+                                    args.winter,
+                                );
+                            } else if special_choice <= 6 {
+                                editor.set_block(
+                                    HAY_BALE,
+                                    x,
+                                    ground_level + 1,
+                                    z,
+                                    None,
+                                    Some(&[SPONGE]),
+                                );
+                            } else {
+                                editor.set_block(
+                                    OAK_LEAVES,
+                                    x,
+                                    ground_level + 1,
+                                    z,
+                                    None,
+                                    Some(&[SPONGE]),
+                                );
+                            }
+                        } else {
+                            // Set crops only if the block below is farmland
+                            if editor.check_for_block(x, ground_level, z, Some(&[FARMLAND]), None) {
+                                let crop_choice = [WHEAT, CARROTS, POTATOES][rng.gen_range(0..3)];
+                                editor.set_block(crop_choice, x, ground_level + 1, z, None, None);
+                            }
                        }
                    }
                }
-                _ => {}
            }
+            "construction" => {
+                let random_choice: i32 = rng.gen_range(0..1501);
+                if random_choice < 6 {
+                    editor.set_block(SCAFFOLDING, x, ground_level + 1, z, None, None);
+                    if random_choice < 2 {
+                        editor.set_block(SCAFFOLDING, x, ground_level + 2, z, None, None);
+                        editor.set_block(SCAFFOLDING, x, ground_level + 3, z, None, None);
+                    } else if random_choice < 4 {
+                        editor.set_block(SCAFFOLDING, x, ground_level + 2, z, None, None);
+                        editor.set_block(SCAFFOLDING, x, ground_level + 3, z, None, None);
+                        editor.set_block(SCAFFOLDING, x, ground_level + 4, z, None, None);
+                        editor.set_block(SCAFFOLDING, x, ground_level + 1, z + 1, None, None);
+                    } else {
+                        editor.set_block(SCAFFOLDING, x, ground_level + 2, z, None, None);
+                        editor.set_block(SCAFFOLDING, x, ground_level + 3, z, None, None);
+                        editor.set_block(SCAFFOLDING, x, ground_level + 4, z, None, None);
+                        editor.set_block(SCAFFOLDING, x, ground_level + 5, z, None, None);
+                        editor.set_block(SCAFFOLDING, x - 1, ground_level + 1, z, None, None);
+                        editor.set_block(SCAFFOLDING, x + 1, ground_level + 1, z - 1, None, None);
+                    }
+                } else if random_choice < 30 {
+                    let construction_items: [Block; 11] = [
+                        OAK_LOG,
+                        COBBLESTONE,
+                        GRAVEL,
+                        GLOWSTONE,
+                        STONE,
+                        COBBLESTONE_WALL,
+                        BLACK_CONCRETE,
+                        SAND,
+                        OAK_PLANKS,
+                        DIRT,
+                        BRICK,
+                    ];
+                    editor.set_block(
+                        construction_items[rng.gen_range(0..construction_items.len())],
+                        x,
+                        ground_level + 1,
+                        z,
+                        None,
+                        None,
+                    );
+                } else if random_choice < 35 {
+                    if random_choice < 30 {
+                        editor.set_block(DIRT, x, ground_level + 1, z, None, None);
+                        editor.set_block(DIRT, x, ground_level + 2, z, None, None);
+                        editor.set_block(DIRT, x + 1, ground_level + 1, z, None, None);
+                        editor.set_block(DIRT, x, ground_level + 1, z + 1, None, None);
+                    } else {
+                        editor.set_block(DIRT, x, ground_level + 1, z, None, None);
+                        editor.set_block(DIRT, x, ground_level + 2, z, None, None);
+                        editor.set_block(DIRT, x - 1, ground_level + 1, z, None, None);
+                        editor.set_block(DIRT, x, ground_level + 1, z - 1, None, None);
+                    }
+                } else if random_choice < 150 {
+                    editor.set_block(AIR, x, ground_level, z, None, Some(&[SPONGE]));
+                }
+            }
+            "grass" => {
+                if rng.gen_range(1..=7) != 1
+                    && editor.check_for_block(
+                        x,
+                        ground_level,
+                        z,
+                        Some(&[GRASS_BLOCK, SNOW_BLOCK]),
+                        None,
+                    )
+                {
+                    editor.set_block(GRASS, x, ground_level + 1, z, None, None);
+                }
+            }
+            "meadow" => {
+                if editor.check_for_block(
+                    x,
+                    ground_level,
+                    z,
+                    Some(&[GRASS_BLOCK, SNOW_BLOCK]),
+                    None,
+                ) {
+                    let random_choice: i32 = rng.gen_range(0..1001);
+                    if random_choice < 5 {
+                        create_tree(
+                            editor,
+                            x,
+                            ground_level + 1,
+                            z,
+                            rng.gen_range(1..=3),
+                            args.winter,
+                        );
+                    } else if random_choice < 800 {
+                        editor.set_block(GRASS, x, ground_level + 1, z, None, None);
+                    }
+                }
+            }
+            _ => {}
        }
    }
 }
--- a/src/element_processing/leisure.rs
+++ b/src/element_processing/leisure.rs
@@ -1,16 +1,18 @@
 use crate::args::Args;
 use crate::block_definitions::*;
 use crate::bresenham::bresenham_line;
+use crate::cartesian::XZPoint;
 use crate::element_processing::tree::create_tree;
 use crate::floodfill::flood_fill_area;
-use crate::osm_parser::ProcessedWay;
+use crate::ground::Ground;
+use crate::osm_parser::{ProcessedMemberRole, ProcessedRelation, ProcessedWay};
 use crate::world_editor::WorldEditor;
 use rand::Rng;

 pub fn generate_leisure(
    editor: &mut WorldEditor,
    element: &ProcessedWay,
-    ground_level: i32,
+    ground: &Ground,
    args: &Args,
 ) {
    if let Some(leisure_type) = element.tags.get("leisure") {
@@ -61,12 +63,12 @@ pub fn generate_leisure(
            if let Some(prev) = previous_node {
                // Draw a line between the current and previous node
                let bresenham_points: Vec<(i32, i32, i32)> =
-                    bresenham_line(prev.0, ground_level, prev.1, node.x, ground_level, node.z);
+                    bresenham_line(prev.0, 0, prev.1, node.x, 0, node.z);
                for (bx, _, bz) in bresenham_points {
                    editor.set_block(
                        block_type,
                        bx,
-                        ground_level,
+                        ground.level(XZPoint::new(bx, bz)),
                        bz,
                        Some(&[
                            GRASS_BLOCK,
@@ -99,6 +101,7 @@ pub fn generate_leisure(
                flood_fill_area(&polygon_coords, args.timeout.as_ref());

            for (x, z) in filled_area {
+                let ground_level = ground.level(XZPoint::new(x, z));
                editor.set_block(block_type, x, ground_level, z, Some(&[GRASS_BLOCK]), None);

                // Add decorative elements for parks and gardens
@@ -192,3 +195,37 @@ pub fn generate_leisure(
        }
    }
 }
+
+pub fn generate_leisure_from_relation(
+    editor: &mut WorldEditor,
+    rel: &ProcessedRelation,
+    ground: &Ground,
+    args: &Args,
+) {
+    if rel.tags.get("leisure") == Some(&"park".to_string()) {
+        // First generate individual ways with their original tags
+        for member in &rel.members {
+            if member.role == ProcessedMemberRole::Outer {
+                generate_leisure(editor, &member.way, ground, args);
+            }
+        }
+
+        // Then combine all outer ways into one
+        let mut combined_nodes = Vec::new();
+        for member in &rel.members {
+            if member.role == ProcessedMemberRole::Outer {
+                combined_nodes.extend(member.way.nodes.clone());
+            }
+        }
+
+        // Create combined way with relation tags
+        let combined_way = ProcessedWay {
+            id: rel.id,
+            nodes: combined_nodes,
+            tags: rel.tags.clone(),
+        };
+
+        // Generate leisure area from combined way
+        generate_leisure(editor, &combined_way, ground, args);
+    }
+}
--- a/src/element_processing/natural.rs
+++ b/src/element_processing/natural.rs
@@ -1,8 +1,10 @@
 use crate::args::Args;
 use crate::block_definitions::*;
 use crate::bresenham::bresenham_line;
+use crate::cartesian::XZPoint;
 use crate::element_processing::tree::create_tree;
 use crate::floodfill::flood_fill_area;
+use crate::ground::Ground;
 use crate::osm_parser::ProcessedElement;
 use crate::world_editor::WorldEditor;
 use rand::Rng;
@@ -10,7 +12,7 @@ use rand::Rng;
 pub fn generate_natural(
    editor: &mut WorldEditor,
    element: &ProcessedElement,
-    ground_level: i32,
+    ground: &Ground,
    args: &Args,
 ) {
    if let Some(natural_type) = element.tags().get("natural") {
@@ -23,7 +25,7 @@ pub fn generate_natural(
                create_tree(
                    editor,
                    x,
-                    ground_level + 1,
+                    ground.level(node.xz()) + 1,
                    z,
                    rng.gen_range(1..=3),
                    args.winter,
@@ -73,9 +75,16 @@ pub fn generate_natural(
                if let Some(prev) = previous_node {
                    // Generate the line of coordinates between the two nodes
                    let bresenham_points: Vec<(i32, i32, i32)> =
-                        bresenham_line(prev.0, ground_level, prev.1, x, ground_level, z);
+                        bresenham_line(prev.0, 0, prev.1, x, 0, z);
                    for (bx, _, bz) in bresenham_points {
-                        editor.set_block(block_type, bx, ground_level, bz, None, None);
+                        editor.set_block(
+                            block_type,
+                            bx,
+                            ground.level(XZPoint::new(bx, bz)),
+                            bz,
+                            None,
+                            None,
+                        );
                    }

                    current_natural.push((x, z));
@@ -98,24 +107,19 @@ pub fn generate_natural(
                let mut rng: rand::prelude::ThreadRng = rand::thread_rng();

                for (x, z) in filled_area {
-                    editor.set_block(block_type, x, ground_level, z, None, None);
+                    let y = ground.level(XZPoint::new(x, z));
+
+                    editor.set_block(block_type, x, y, z, None, None);

                    // Generate elements for "wood" and "tree_row"
                    if natural_type == "wood" || natural_type == "tree_row" {
-                        if editor.check_for_block(x, ground_level, z, None, Some(&[WATER])) {
+                        if editor.check_for_block(x, y, z, None, Some(&[WATER])) {
                            continue;
                        }

                        let random_choice: i32 = rng.gen_range(0..26);
                        if random_choice == 25 {
-                            create_tree(
-                                editor,
-                                x,
-                                ground_level + 1,
-                                z,
-                                rng.gen_range(1..=3),
-                                args.winter,
-                            );
+                            create_tree(editor, x, y + 1, z, rng.gen_range(1..=3), args.winter);
                        } else if random_choice == 2 {
                            let flower_block = match rng.gen_range(1..=4) {
                                1 => RED_FLOWER,
@@ -123,9 +127,9 @@ pub fn generate_natural(
                                3 => YELLOW_FLOWER,
                                _ => WHITE_FLOWER,
                            };
-                            editor.set_block(flower_block, x, ground_level + 1, z, None, None);
+                            editor.set_block(flower_block, x, y + 1, z, None, None);
                        } else if random_choice <= 1 {
-                            editor.set_block(GRASS, x, ground_level + 1, z, None, None);
+                            editor.set_block(GRASS, x, y + 1, z, None, None);
                        }
                    }
                }
--- a/src/element_processing/railways.rs
+++ b/src/element_processing/railways.rs
@@ -1,11 +1,22 @@
 use crate::block_definitions::*;
 use crate::bresenham::bresenham_line;
+use crate::cartesian::XZPoint;
+use crate::ground::Ground;
 use crate::osm_parser::ProcessedWay;
 use crate::world_editor::WorldEditor;

-pub fn generate_railways(editor: &mut WorldEditor, element: &ProcessedWay, ground_level: i32) {
+pub fn generate_railways(editor: &mut WorldEditor, element: &ProcessedWay, ground: &Ground) {
    if let Some(railway_type) = element.tags.get("railway") {
-        if ["proposed", "abandoned", "subway", "construction"].contains(&railway_type.as_str()) {
+        if [
+            "proposed",
+            "abandoned",
+            "subway",
+            "construction",
+            "razed",
+            "turntable",
+        ]
+        .contains(&railway_type.as_str())
+        {
            return;
        }

@@ -22,22 +33,36 @@ pub fn generate_railways(editor: &mut WorldEditor, element: &ProcessedWay, groun
        }

        for i in 1..element.nodes.len() {
-            let prev: &crate::osm_parser::ProcessedNode = &element.nodes[i - 1];
-            let x1: i32 = prev.x;
-            let z1: i32 = prev.z;
+            let prev_node = element.nodes[i - 1].xz();
+            let cur_node = element.nodes[i].xz();

-            let cur: &crate::osm_parser::ProcessedNode = &element.nodes[i];
-            let x2: i32 = cur.x;
-            let z2: i32 = cur.z;
+            let points = bresenham_line(prev_node.x, 0, prev_node.z, cur_node.x, 0, cur_node.z);
+            let smoothed_points = smooth_diagonal_rails(&points);

-            // Generate the line of coordinates between the two nodes
-            let bresenham_points: Vec<(i32, i32, i32)> =
-                bresenham_line(x1, ground_level, z1, x2, ground_level, z2);
+            for j in 0..smoothed_points.len() {
+                let (bx, _, bz) = smoothed_points[j];
+                let ground_level = ground.level(XZPoint::new(bx, bz));

-            for (bx, _, bz) in bresenham_points {
-                // TODO: Set direction of rail
                editor.set_block(IRON_BLOCK, bx, ground_level, bz, None, None);
-                editor.set_block(RAIL, bx, ground_level + 1, bz, None, None);
+
+                let prev = if j > 0 {
+                    Some(smoothed_points[j - 1])
+                } else {
+                    None
+                };
+                let next = if j < smoothed_points.len() - 1 {
+                    Some(smoothed_points[j + 1])
+                } else {
+                    None
+                };
+
+                let rail_block = determine_rail_direction(
+                    (bx, bz),
+                    prev.map(|(x, _, z)| (x, z)),
+                    next.map(|(x, _, z)| (x, z)),
+                );
+
+                editor.set_block(rail_block, bx, ground_level + 1, bz, None, None);

                if bx % 4 == 0 {
                    editor.set_block(OAK_LOG, bx, ground_level, bz, None, None);
@@ -46,3 +71,109 @@ pub fn generate_railways(editor: &mut WorldEditor, element: &ProcessedWay, groun
        }
    }
 }
+
+fn smooth_diagonal_rails(points: &[(i32, i32, i32)]) -> Vec<(i32, i32, i32)> {
+    let mut smoothed = Vec::new();
+
+    for i in 0..points.len() {
+        let current = points[i];
+        smoothed.push(current);
+
+        if i + 1 >= points.len() {
+            continue;
+        }
+
+        let next = points[i + 1];
+        let (x1, y1, z1) = current;
+        let (x2, _, z2) = next;
+
+        // If points are diagonally adjacent
+        if (x2 - x1).abs() == 1 && (z2 - z1).abs() == 1 {
+            // Look ahead to determine best intermediate point
+            let look_ahead = if i + 2 < points.len() {
+                Some(points[i + 2])
+            } else {
+                None
+            };
+
+            // Look behind
+            let look_behind = if i > 0 { Some(points[i - 1]) } else { None };
+
+            // Choose intermediate point based on the overall curve direction
+            let intermediate = if let Some((prev_x, _, _prev_z)) = look_behind {
+                if prev_x == x1 {
+                    // Coming from vertical, keep x constant
+                    (x1, y1, z2)
+                } else {
+                    // Coming from horizontal, keep z constant
+                    (x2, y1, z1)
+                }
+            } else if let Some((next_x, _, _next_z)) = look_ahead {
+                if next_x == x2 {
+                    // Going to vertical, keep x constant
+                    (x2, y1, z1)
+                } else {
+                    // Going to horizontal, keep z constant
+                    (x1, y1, z2)
+                }
+            } else {
+                // Default to horizontal first if no context
+                (x2, y1, z1)
+            };
+
+            smoothed.push(intermediate);
+        }
+    }
+
+    smoothed
+}
+
+fn determine_rail_direction(
+    current: (i32, i32),
+    prev: Option<(i32, i32)>,
+    next: Option<(i32, i32)>,
+) -> Block {
+    let (x, z) = current;
+
+    match (prev, next) {
+        (Some((px, pz)), Some((nx, nz))) => {
+            if px == nx {
+                RAIL_NORTH_SOUTH
+            } else if pz == nz {
+                RAIL_EAST_WEST
+            } else {
+                // Calculate relative movements
+                let from_prev = (px - x, pz - z);
+                let to_next = (nx - x, nz - z);
+
+                match (from_prev, to_next) {
+                    // East to North or North to East
+                    ((-1, 0), (0, -1)) | ((0, -1), (-1, 0)) => RAIL_NORTH_WEST,
+                    // West to North or North to West
+                    ((1, 0), (0, -1)) | ((0, -1), (1, 0)) => RAIL_NORTH_EAST,
+                    // East to South or South to East
+                    ((-1, 0), (0, 1)) | ((0, 1), (-1, 0)) => RAIL_SOUTH_WEST,
+                    // West to South or South to West
+                    ((1, 0), (0, 1)) | ((0, 1), (1, 0)) => RAIL_SOUTH_EAST,
+                    _ => {
+                        if (px - x).abs() > (pz - z).abs() {
+                            RAIL_EAST_WEST
+                        } else {
+                            RAIL_NORTH_SOUTH
+                        }
+                    }
+                }
+            }
+        }
+        (Some((px, pz)), None) | (None, Some((px, pz))) => {
+            if px == x {
+                RAIL_NORTH_SOUTH
+            } else if pz == z {
+                RAIL_EAST_WEST
+            } else {
+                RAIL_NORTH_SOUTH
+            }
+        }
+        (None, None) => RAIL_NORTH_SOUTH,
+    }
+}
--- a/src/element_processing/tourisms.rs
+++ b/src/element_processing/tourisms.rs
@@ -1,8 +1,10 @@
 use crate::block_definitions::*;
+use crate::cartesian::XZPoint;
+use crate::ground::Ground;
 use crate::osm_parser::ProcessedNode;
 use crate::world_editor::WorldEditor;

-pub fn generate_tourisms(editor: &mut WorldEditor, element: &ProcessedNode, ground_level: i32) {
+pub fn generate_tourisms(editor: &mut WorldEditor, element: &ProcessedNode, ground: &Ground) {
    // Skip if 'layer' or 'level' is negative in the tags
    if let Some(layer) = element.tags.get("layer") {
        if layer.parse::<i32>().unwrap_or(0) < 0 {
@@ -20,10 +22,15 @@ pub fn generate_tourisms(editor: &mut WorldEditor, element: &ProcessedNode, grou
        let x: i32 = element.x;
        let z: i32 = element.z;

+        // Calculate the dynamic ground level
+        let ground_level = ground.level(XZPoint::new(x, z));
+
        if tourism_type == "information" {
            if let Some("board") = element.tags.get("information").map(|x: &String| x.as_str()) {
-                // TODO draw a sign
-                editor.set_block(OAK_PLANKS, x, ground_level + 1, z, None, None);
+                // Draw an information board
+                // TODO draw a sign with text
+                editor.set_block(COBBLESTONE_WALL, x, ground_level + 1, z, None, None);
+                editor.set_block(OAK_PLANKS, x, ground_level + 2, z, None, None);
            }
        }
    }
--- a/src/element_processing/water_areas.rs
+++ b/src/element_processing/water_areas.rs
@@ -3,6 +3,8 @@ use std::time::Instant;

 use crate::{
    block_definitions::WATER,
+    cartesian::XZPoint,
+    ground::Ground,
    osm_parser::{ProcessedMemberRole, ProcessedNode, ProcessedRelation},
    world_editor::WorldEditor,
 };
@@ -10,7 +12,7 @@ use crate::{
 pub fn generate_water_areas(
    editor: &mut WorldEditor,
    element: &ProcessedRelation,
-    ground_level: i32,
+    ground: &Ground,
 ) {
    let start_time = Instant::now();

@@ -18,7 +20,7 @@ pub fn generate_water_areas(
        return;
    }

-    // don't handle water below layer 0
+    // Don't handle water below layer 0
    if let Some(layer) = element.tags.get("layer") {
        if layer.parse::<i32>().map(|x| x < 0).unwrap_or(false) {
            return;
@@ -46,32 +48,16 @@ pub fn generate_water_areas(
    }

    let (max_x, max_z) = editor.get_max_coords();
-    let outers: Vec<Vec<(f64, f64)>> = outers
+    let outers: Vec<Vec<XZPoint>> = outers
        .iter()
-        .map(|x: &Vec<ProcessedNode>| {
-            x.iter()
-                .map(|y: &ProcessedNode| (y.x as f64, y.z as f64))
-                .collect()
-        })
+        .map(|x| x.iter().map(|y| y.xz()).collect::<Vec<_>>())
        .collect();
-    let inners: Vec<Vec<(f64, f64)>> = inners
+    let inners: Vec<Vec<XZPoint>> = inners
        .iter()
-        .map(|x: &Vec<ProcessedNode>| {
-            x.iter()
-                .map(|y: &ProcessedNode| (y.x as f64, y.z as f64))
-                .collect()
-        })
+        .map(|x| x.iter().map(|y| y.xz()).collect::<Vec<_>>())
        .collect();

-    inverse_floodfill(
-        max_x,
-        max_z,
-        outers,
-        inners,
-        editor,
-        ground_level,
-        start_time,
-    );
+    inverse_floodfill(max_x, max_z, outers, inners, editor, ground, start_time);
 }

 // Merges ways that share nodes into full loops
@@ -164,10 +150,10 @@ fn verify_loopy_loops(loops: &[Vec<ProcessedNode>]) -> bool {
 fn inverse_floodfill(
    max_x: i32,
    max_z: i32,
-    outers: Vec<Vec<(f64, f64)>>,
-    inners: Vec<Vec<(f64, f64)>>,
+    outers: Vec<Vec<XZPoint>>,
+    inners: Vec<Vec<XZPoint>>,
    editor: &mut WorldEditor,
-    ground_level: i32,
+    ground: &Ground,
    start_time: Instant,
 ) {
    let min_x: i32 = 0;
@@ -175,21 +161,39 @@ fn inverse_floodfill(

    let inners: Vec<_> = inners
        .into_iter()
-        .map(|x: Vec<(f64, f64)>| Polygon::new(LineString::from(x), vec![]))
+        .map(|x| {
+            Polygon::new(
+                LineString::from(
+                    x.iter()
+                        .map(|pt| (pt.x as f64, pt.z as f64))
+                        .collect::<Vec<_>>(),
+                ),
+                vec![],
+            )
+        })
        .collect();

    let outers: Vec<_> = outers
        .into_iter()
-        .map(|x: Vec<(f64, f64)>| Polygon::new(LineString::from(x), vec![]))
+        .map(|x| {
+            Polygon::new(
+                LineString::from(
+                    x.iter()
+                        .map(|pt| (pt.x as f64, pt.z as f64))
+                        .collect::<Vec<_>>(),
+                ),
+                vec![],
+            )
+        })
        .collect();

    inverse_floodfill_recursive(
        (min_x, min_z),
        (max_x, max_z),
-        ground_level,
        &outers,
        &inners,
        editor,
+        ground,
        start_time,
    );
 }
@@ -197,10 +201,10 @@ fn inverse_floodfill(
 fn inverse_floodfill_recursive(
    min: (i32, i32),
    max: (i32, i32),
-    ground_level: i32,
    outers: &[Polygon],
    inners: &[Polygon],
    editor: &mut WorldEditor,
+    ground: &Ground,
    start_time: Instant,
 ) {
    // Check if we've exceeded 25 seconds
@@ -215,8 +219,8 @@ fn inverse_floodfill_recursive(
    }

    if (max.0 - min.0) * (max.1 - min.1) < ITERATIVE_THRES {
+        let ground_level = ground.level(XZPoint::new(min.0, min.1));
        inverse_floodfill_iterative(min, max, ground_level, outers, inners, editor);
-
        return;
    }

@@ -238,40 +242,30 @@ fn inverse_floodfill_recursive(
        if outers.iter().any(|outer: &Polygon| outer.contains(&rect))
            && !inners.iter().any(|inner: &Polygon| inner.intersects(&rect))
        {
-            // every block in rect is water
-            // so we can safely just set the whole thing to water
-
+            let ground_level = ground.level(XZPoint::new(min_x, min_z));
            rect_fill(min_x, max_x, min_z, max_z, ground_level, editor);
-
            continue;
        }

-        // When we recurse, we only really need the polygons we potentially intersect with
-        // This saves on processing time
        let outers_intersects: Vec<_> = outers
            .iter()
-            .filter(|poly: &&Polygon| poly.intersects(&rect))
+            .filter(|poly| poly.intersects(&rect))
            .cloned()
            .collect();
-
-        // Moving this inside the below `if` statement makes it slower for some reason.
-        // I assume it changes how the compiler is able to optimize it
        let inners_intersects: Vec<_> = inners
            .iter()
-            .filter(|poly: &&Polygon| poly.intersects(&rect))
+            .filter(|poly| poly.intersects(&rect))
            .cloned()
            .collect();

        if !outers_intersects.is_empty() {
-            // recurse
-
            inverse_floodfill_recursive(
                (min_x, min_z),
                (max_x, max_z),
-                ground_level,
                &outers_intersects,
                &inners_intersects,
                editor,
+                ground,
                start_time,
            );
        }
--- a/src/element_processing/waterways.rs
+++ b/src/element_processing/waterways.rs
@@ -1,11 +1,13 @@
 use crate::block_definitions::*;
 use crate::bresenham::bresenham_line;
+use crate::cartesian::XZPoint;
+use crate::ground::Ground;
 use crate::osm_parser::ProcessedWay;
 use crate::world_editor::WorldEditor;

-pub fn generate_waterways(editor: &mut WorldEditor, element: &ProcessedWay, ground_level: i32) {
+pub fn generate_waterways(editor: &mut WorldEditor, element: &ProcessedWay, ground: &Ground) {
    if let Some(_waterway_type) = element.tags.get("waterway") {
-        let mut previous_node: Option<(i32, i32)> = None;
+        let mut previous_node: Option<XZPoint> = None;
        let mut waterway_width: i32 = 4; // Default waterway width

        // Check for custom width in tags
@@ -20,6 +22,8 @@ pub fn generate_waterways(editor: &mut WorldEditor, element: &ProcessedWay, grou

        // Process nodes to create waterways
        for node in &element.nodes {
+            let current_node = node.xz();
+
            if let Some(prev) = previous_node {
                // Skip layers below the ground level
                if !matches!(
@@ -28,11 +32,16 @@ pub fn generate_waterways(editor: &mut WorldEditor, element: &ProcessedWay, grou
                ) {
                    // Draw a line between the current and previous node
                    let bresenham_points: Vec<(i32, i32, i32)> =
-                        bresenham_line(prev.0, ground_level, prev.1, node.x, ground_level, node.z);
+                        bresenham_line(prev.x, 0, prev.z, current_node.x, 0, current_node.z);
+
                    for (bx, _, bz) in bresenham_points {
+                        let ground_level = ground.level(XZPoint::new(bx, bz));
+
                        for x in (bx - waterway_width / 2)..=(bx + waterway_width / 2) {
                            for z in (bz - waterway_width / 2)..=(bz + waterway_width / 2) {
-                                editor.set_block(WATER, x, ground_level, z, None, None); // Set water block
+                                // Set water block at the ground level
+                                editor.set_block(WATER, x, ground_level, z, None, None);
+                                // Clear vegetation above the water
                                editor.set_block(
                                    AIR,
                                    x,
@@ -46,7 +55,7 @@ pub fn generate_waterways(editor: &mut WorldEditor, element: &ProcessedWay, grou
                    }
                }
            }
-            previous_node = Some((node.x, node.z));
+            previous_node = Some(current_node);
        }
    }
 }
--- a/src/ground.rs
+++ b/src/ground.rs
@@ -0,0 +1,424 @@
+use crate::cartesian::XZPoint;
+use image::{Rgb, RgbImage};
+
+/// Minimum Y coordinate in Minecraft (bedrock level)
+const MIN_Y: i32 = -62;
+/// Maximum Y coordinate in Minecraft (build height limit)
+const MAX_Y: i32 = 256;
+/// Scale factor for converting real elevation to Minecraft heights
+const BASE_HEIGHT_SCALE: f64 = 0.6;
+/// Mapbox API access token for terrain data
+const MAPBOX_PUBKEY: &str =
+    "pk.eyJ1IjoibG91aXMtZSIsImEiOiJjbWF0cWlycjEwYWNvMmtxeHFwdDQ5NnJoIn0.6A0AKg0iucvoGhYuCkeOjA";
+/// Minimum zoom level for terrain tiles
+const MIN_ZOOM: u8 = 10;
+/// Maximum zoom level for terrain tiles
+const MAX_ZOOM: u8 = 15;
+
+/// Represents terrain data and elevation settings
+pub struct Ground {
+    pub elevation_enabled: bool,
+    ground_level: i32,
+    elevation_data: Option<ElevationData>,
+}
+
+/// Holds processed elevation data and metadata
+#[derive(Clone)]
+struct ElevationData {
+    /// Height values in Minecraft Y coordinates
+    heights: Vec<Vec<i32>>,
+    /// Width of the elevation grid
+    width: usize,
+    /// Height of the elevation grid
+    height: usize,
+}
+
+impl Ground {
+    pub fn new(args: &crate::args::Args) -> Self {
+        let mut elevation_enabled: bool = args.terrain;
+        let elevation_data: Option<ElevationData> = if elevation_enabled && args.bbox.is_some() {
+            match Self::fetch_elevation_data(args.bbox.as_deref().unwrap(), args.scale) {
+                Ok(data) => {
+                    if args.debug {
+                        Self::save_debug_image(&data.heights, "elevation_debug");
+                    }
+                    Some(data)
+                }
+                Err(e) => {
+                    eprintln!("Warning: Failed to fetch elevation data: {}", e);
+                    elevation_enabled = false;
+                    None
+                }
+            }
+        } else {
+            None
+        };
+
+        Self {
+            elevation_enabled,
+            ground_level: args.ground_level,
+            elevation_data,
+        }
+    }
+
+    /// Returns the ground level at the given coordinates
+    #[inline(always)]
+    pub fn level(&self, coord: XZPoint) -> i32 {
+        if !self.elevation_enabled || self.elevation_data.is_none() {
+            return self.ground_level;
+        }
+
+        let data: &ElevationData = self.elevation_data.as_ref().unwrap();
+        let (x_ratio, z_ratio) = self.get_data_coordinates(coord, data);
+        self.interpolate_height(x_ratio, z_ratio, data)
+    }
+
+    #[inline(always)]
+    pub fn min_level<I: Iterator<Item = XZPoint>>(&self, coords: I) -> Option<i32> {
+        if !self.elevation_enabled {
+            return Some(self.ground_level);
+        }
+        coords.map(|c: XZPoint| self.level(c)).min()
+    }
+
+    #[inline(always)]
+    pub fn max_level<I: Iterator<Item = XZPoint>>(&self, coords: I) -> Option<i32> {
+        if !self.elevation_enabled {
+            return Some(self.ground_level);
+        }
+        coords.map(|c: XZPoint| self.level(c)).max()
+    }
+
+    /// Converts game coordinates to elevation data coordinates
+    #[inline(always)]
+    fn get_data_coordinates(&self, coord: XZPoint, data: &ElevationData) -> (f64, f64) {
+        let x_ratio: f64 = coord.x as f64 / data.width as f64;
+        let z_ratio: f64 = coord.z as f64 / data.height as f64;
+        (x_ratio.clamp(0.0, 1.0), z_ratio.clamp(0.0, 1.0))
+    }
+
+    /// Interpolates height value from the elevation grid
+    #[inline(always)]
+    fn interpolate_height(&self, x_ratio: f64, z_ratio: f64, data: &ElevationData) -> i32 {
+        let x: usize = ((x_ratio * (data.width - 1) as f64).round() as usize).min(data.width - 1);
+        let z: usize = ((z_ratio * (data.height - 1) as f64).round() as usize).min(data.height - 1);
+        data.heights[z][x]
+    }
+
+    /// Calculates appropriate zoom level for the given bounding box
+    fn calculate_zoom_level(bbox: (f64, f64, f64, f64)) -> u8 {
+        let lat_diff: f64 = (bbox.2 - bbox.0).abs();
+        let lng_diff: f64 = (bbox.3 - bbox.1).abs();
+        let max_diff: f64 = lat_diff.max(lng_diff);
+        let zoom: u8 = (-max_diff.log2() + 20.0) as u8;
+        zoom.clamp(MIN_ZOOM, MAX_ZOOM)
+    }
+
+    fn lat_lng_to_tile(lat: f64, lng: f64, zoom: u8) -> (u32, u32) {
+        let lat_rad: f64 = lat.to_radians();
+        let n: f64 = 2.0_f64.powi(zoom as i32);
+        let x: u32 = ((lng + 180.0) / 360.0 * n).floor() as u32;
+        let y: u32 =
+            ((1.0 - lat_rad.tan().asinh() / std::f64::consts::PI) / 2.0 * n).floor() as u32;
+        (x, y)
+    }
+
+    fn fetch_elevation_data(
+        bbox_str: &str,
+        scale: f64,
+    ) -> Result<ElevationData, Box<dyn std::error::Error>> {
+        let coords: Vec<f64> = bbox_str
+            .split_whitespace()
+            .map(|s: &str| s.parse::<f64>())
+            .collect::<Result<Vec<f64>, _>>()?;
+
+        let (min_lat, min_lng, max_lat, max_lng) = (coords[0], coords[1], coords[2], coords[3]);
+
+        // Use OSM parser's scale calculation and apply user scale factor
+        let (scale_factor_z, scale_factor_x) =
+            crate::osm_parser::geo_distance(min_lat, max_lat, min_lng, max_lng);
+        let scale_factor_x: f64 = scale_factor_x * scale;
+        let scale_factor_z: f64 = scale_factor_z * scale;
+
+        // Calculate zoom and tiles
+        let zoom: u8 = Self::calculate_zoom_level((min_lat, min_lng, max_lat, max_lng));
+        let tiles: Vec<(u32, u32)> =
+            Self::get_tile_coordinates(min_lat, min_lng, max_lat, max_lng, zoom);
+
+        // Calculate tile boundaries
+        let x_min: &u32 = tiles.iter().map(|(x, _)| x).min().unwrap();
+        let x_max: &u32 = tiles.iter().map(|(x, _)| x).max().unwrap();
+        let y_min: &u32 = tiles.iter().map(|(_, y)| y).min().unwrap();
+        let y_max: &u32 = tiles.iter().map(|(_, y)| y).max().unwrap();
+
+        // Match grid dimensions with Minecraft world size
+        let grid_width: usize = scale_factor_x.round() as usize;
+        let grid_height: usize = scale_factor_z.round() as usize;
+
+        // Calculate total tile dimensions
+        let total_tile_width: u32 = (x_max - x_min + 1) * 256;
+        let total_tile_height: u32 = (y_max - y_min + 1) * 256;
+
+        // Calculate scaling factors to match the desired grid dimensions
+        let x_scale: f64 = grid_width as f64 / total_tile_width as f64;
+        let y_scale: f64 = grid_height as f64 / total_tile_height as f64;
+
+        // Initialize height grid with proper dimensions
+        let mut height_grid: Vec<Vec<f64>> = vec![vec![f64::NAN; grid_width]; grid_height];
+
+        let client: reqwest::blocking::Client = reqwest::blocking::Client::new();
+        let access_token: &str = MAPBOX_PUBKEY;
+
+        // Fetch and process each tile
+        for (tile_x, tile_y) in &tiles {
+            let url: String = format!(
+                "https://api.mapbox.com/v4/mapbox.terrain-rgb/{}/{}/{}.pngraw?access_token={}",
+                zoom, tile_x, tile_y, access_token
+            );
+
+            let response: reqwest::blocking::Response = client.get(&url).send()?;
+            let img: image::DynamicImage = image::load_from_memory(&response.bytes()?)?;
+            let rgb_img: image::ImageBuffer<Rgb<u8>, Vec<u8>> = img.to_rgb8();
+
+            // Calculate position in the scaled grid
+            let base_x: f64 = ((*tile_x - x_min) * 256) as f64;
+            let base_y: f64 = ((*tile_y - y_min) * 256) as f64;
+
+            // Process tile data with scaling
+            for (y, row) in rgb_img.rows().enumerate() {
+                for (x, pixel) in row.enumerate() {
+                    let scaled_x: usize = ((base_x + x as f64) * x_scale) as usize;
+                    let scaled_y: usize = ((base_y + y as f64) * y_scale) as usize;
+
+                    if scaled_y >= grid_height || scaled_x >= grid_width {
+                        continue;
+                    }
+
+                    let height: f64 = -10000.0
+                        + ((pixel[0] as f64 * 256.0 * 256.0
+                            + pixel[1] as f64 * 256.0
+                            + pixel[2] as f64)
+                            * 0.1);
+
+                    height_grid[scaled_y][scaled_x] = height;
+                }
+            }
+        }
+
+        // Fill in any NaN values by interpolating from nearest valid values
+        Self::fill_nan_values(&mut height_grid);
+
+        // Continue with the existing blur and conversion to Minecraft heights...
+        let blurred_heights: Vec<Vec<f64>> = Self::apply_gaussian_blur(&height_grid, 1.0);
+
+        let mut mc_heights: Vec<Vec<i32>> = Vec::with_capacity(blurred_heights.len());
+
+        // Find min/max in raw data
+        let mut min_height: f64 = f64::MAX;
+        let mut max_height: f64 = f64::MIN;
+        for row in &blurred_heights {
+            for &height in row {
+                min_height = min_height.min(height);
+                max_height = max_height.max(height);
+            }
+        }
+
+        let height_range: f64 = max_height - min_height;
+        // Apply scale factor to height scaling
+        let height_scale: f64 = BASE_HEIGHT_SCALE * scale.sqrt(); // sqrt to make height scaling less extreme
+        let scaled_range: f64 = height_range * height_scale;
+
+        // Convert to scaled Minecraft Y coordinates
+        for row in blurred_heights {
+            let mc_row: Vec<i32> = row
+                .iter()
+                .map(|&h| {
+                    // Scale the height differences
+                    let relative_height: f64 = (h - min_height) / height_range;
+                    let scaled_height: f64 = relative_height * scaled_range;
+                    ((MIN_Y as f64 + scaled_height).round() as i32).clamp(MIN_Y, MAX_Y)
+                })
+                .collect();
+            mc_heights.push(mc_row);
+        }
+
+        Ok(ElevationData {
+            heights: mc_heights,
+            width: grid_width,
+            height: grid_height,
+        })
+    }
+
+    fn get_tile_coordinates(
+        min_lat: f64,
+        min_lng: f64,
+        max_lat: f64,
+        max_lng: f64,
+        zoom: u8,
+    ) -> Vec<(u32, u32)> {
+        // Convert lat/lng to tile coordinates
+        let (x1, y1) = Self::lat_lng_to_tile(min_lat, min_lng, zoom);
+        let (x2, y2) = Self::lat_lng_to_tile(max_lat, max_lng, zoom);
+
+        let mut tiles: Vec<(u32, u32)> = Vec::new();
+        for x in x1.min(x2)..=x1.max(x2) {
+            for y in y1.min(y2)..=y1.max(y2) {
+                tiles.push((x, y));
+            }
+        }
+        tiles
+    }
+
+    fn apply_gaussian_blur(heights: &[Vec<f64>], sigma: f64) -> Vec<Vec<f64>> {
+        let kernel_size: usize = (sigma * 3.0).ceil() as usize * 2 + 1;
+        let kernel: Vec<f64> = Self::create_gaussian_kernel(kernel_size, sigma);
+
+        // Apply blur
+        let mut blurred: Vec<Vec<f64>> = heights.to_owned();
+
+        // Horizontal pass
+        for row in blurred.iter_mut() {
+            let mut temp: Vec<f64> = row.clone();
+            for (i, val) in temp.iter_mut().enumerate() {
+                let mut sum: f64 = 0.0;
+                let mut weight_sum: f64 = 0.0;
+                for (j, k) in kernel.iter().enumerate() {
+                    let idx: i32 = i as i32 + j as i32 - kernel_size as i32 / 2;
+                    if idx >= 0 && idx < row.len() as i32 {
+                        sum += row[idx as usize] * k;
+                        weight_sum += k;
+                    }
+                }
+                *val = sum / weight_sum;
+            }
+            *row = temp;
+        }
+
+        // Vertical pass
+        let height: usize = blurred.len();
+        let width: usize = blurred[0].len();
+        for x in 0..width {
+            let temp: Vec<_> = blurred
+                .iter()
+                .take(height)
+                .map(|row: &Vec<f64>| row[x])
+                .collect();
+
+            for (y, row) in blurred.iter_mut().enumerate().take(height) {
+                let mut sum: f64 = 0.0;
+                let mut weight_sum: f64 = 0.0;
+                for (j, k) in kernel.iter().enumerate() {
+                    let idx: i32 = y as i32 + j as i32 - kernel_size as i32 / 2;
+                    if idx >= 0 && idx < height as i32 {
+                        sum += temp[idx as usize] * k;
+                        weight_sum += k;
+                    }
+                }
+                row[x] = sum / weight_sum;
+            }
+        }
+
+        blurred
+    }
+
+    fn create_gaussian_kernel(size: usize, sigma: f64) -> Vec<f64> {
+        let mut kernel: Vec<f64> = vec![0.0; size];
+        let center: f64 = size as f64 / 2.0;
+
+        for (i, value) in kernel.iter_mut().enumerate() {
+            let x: f64 = i as f64 - center;
+            *value = (-x * x / (2.0 * sigma * sigma)).exp();
+        }
+
+        let sum: f64 = kernel.iter().sum();
+        for k in kernel.iter_mut() {
+            *k /= sum;
+        }
+
+        kernel
+    }
+
+    fn fill_nan_values(height_grid: &mut [Vec<f64>]) {
+        let height: usize = height_grid.len();
+        let width: usize = height_grid[0].len();
+
+        let mut changes_made: bool = true;
+        while changes_made {
+            changes_made = false;
+
+            for y in 0..height {
+                for x in 0..width {
+                    if height_grid[y][x].is_nan() {
+                        let mut sum: f64 = 0.0;
+                        let mut count: i32 = 0;
+
+                        // Check neighboring cells
+                        for dy in -1..=1 {
+                            for dx in -1..=1 {
+                                let ny: i32 = y as i32 + dy;
+                                let nx: i32 = x as i32 + dx;
+
+                                if ny >= 0 && ny < height as i32 && nx >= 0 && nx < width as i32 {
+                                    let val: f64 = height_grid[ny as usize][nx as usize];
+                                    if !val.is_nan() {
+                                        sum += val;
+                                        count += 1;
+                                    }
+                                }
+                            }
+                        }
+
+                        if count > 0 {
+                            height_grid[y][x] = sum / count as f64;
+                            changes_made = true;
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    fn save_debug_image(heights: &Vec<Vec<i32>>, filename: &str) {
+        if heights.is_empty() || heights[0].is_empty() {
+            return;
+        }
+
+        let height: usize = heights.len();
+        let width: usize = heights[0].len();
+        let mut img: image::ImageBuffer<Rgb<u8>, Vec<u8>> =
+            RgbImage::new(width as u32, height as u32);
+
+        let mut min_height: i32 = i32::MAX;
+        let mut max_height: i32 = i32::MIN;
+
+        for row in heights {
+            for &h in row {
+                min_height = min_height.min(h);
+                max_height = max_height.max(h);
+            }
+        }
+
+        for (y, row) in heights.iter().enumerate() {
+            for (x, &h) in row.iter().enumerate() {
+                let normalized: u8 =
+                    (((h - min_height) as f64 / (max_height - min_height) as f64) * 255.0) as u8;
+                img.put_pixel(
+                    x as u32,
+                    y as u32,
+                    Rgb([normalized, normalized, normalized]),
+                );
+            }
+        }
+
+        // Ensure filename has .png extension
+        let filename: String = if !filename.ends_with(".png") {
+            format!("{}.png", filename)
+        } else {
+            filename.to_string()
+        };
+
+        if let Err(e) = img.save(&filename) {
+            eprintln!("Failed to save debug image: {}", e);
+        }
+    }
+}
--- a/src/main.rs
+++ b/src/main.rs
@@ -3,12 +3,24 @@
 mod args;
 mod block_definitions;
 mod bresenham;
+mod cartesian;
 mod colors;
 mod data_processing;
 mod element_processing;
 mod floodfill;
+mod ground;
 mod osm_parser;
+#[cfg(feature = "gui")]
 mod progress;
+// If the user does not want the GUI, it's easiest to just mock the progress module to do nothing
+#[cfg(not(feature = "gui"))]
+mod progress {
+    pub fn emit_gui_error(_message: &str) {}
+    pub fn emit_gui_progress_update(_progress: f64, _message: &str) {}
+    pub fn is_running_with_gui() -> bool {
+        false
+    }
+}
 mod retrieve_data;
 mod version_check;
 mod world_editor;
@@ -18,7 +30,6 @@ use clap::Parser;
 use colored::*;
 use fastnbt::Value;
 use flate2::read::GzDecoder;
-use fs2::FileExt;
 use log::{error, LevelFilter};
 use rfd::FileDialog;
 use std::{
@@ -28,7 +39,10 @@ use std::{
    panic,
    path::{Path, PathBuf},
 };
+#[cfg(feature = "gui")]
 use tauri_plugin_log::{Builder as LogBuilder, Target, TargetKind};
+#[cfg(target_os = "windows")]
+use windows::Win32::System::Console::{AttachConsole, FreeConsole, ATTACH_PARENT_PROCESS};

 fn print_banner() {
    let version: &str = env!("CARGO_PKG_VERSION");
@@ -54,6 +68,14 @@ fn print_banner() {
 }

 fn main() {
+    // If on Windows, free and reattach to the parent console when using as a CLI tool
+    // Either of these can fail, but if they do it is not an issue, so the return value is ignored
+    #[cfg(target_os = "windows")]
+    unsafe {
+        let _ = FreeConsole();
+        let _ = AttachConsole(ATTACH_PARENT_PROCESS);
+    }
+
    // Parse arguments to decide whether to launch the UI or CLI
    let raw_args: Vec<String> = std::env::args().collect();

@@ -121,47 +143,63 @@ fn main() {
        let _ =
            data_processing::generate_world(parsed_elements, &args, scale_factor_x, scale_factor_z);
    } else {
-        // Launch the UI
-        println!("Launching UI...");
+        #[cfg(not(feature = "gui"))]
+        {
+            panic!("This version of arnis was not built with GUI enabled");
+        }

-        // Set a custom panic hook to log panic information
-        panic::set_hook(Box::new(|panic_info| {
-            let message = format!("Application panicked: {:?}", panic_info);
-            error!("{}", message);
-            std::process::exit(1);
-        }));
+        #[cfg(feature = "gui")]
+        {
+            // Launch the UI
+            println!("Launching UI...");

-        tauri::Builder::default()
-            .plugin(
-                LogBuilder::default()
-                    .level(LevelFilter::Warn)
-                    .targets([
-                        Target::new(TargetKind::LogDir {
-                            file_name: Some("arnis".into()),
-                        }),
-                        Target::new(TargetKind::Stdout),
-                    ])
-                    .build(),
-            )
-            .plugin(tauri_plugin_shell::init())
-            .invoke_handler(tauri::generate_handler![
-                gui_select_world,
-                gui_start_generation,
-                gui_get_version,
-                gui_check_for_updates
-            ])
-            .setup(|app| {
-                let app_handle = app.handle();
-                let main_window = tauri::Manager::get_webview_window(app_handle, "main")
-                    .expect("Failed to get main window");
-                progress::set_main_window(main_window);
-                Ok(())
-            })
-            .run(tauri::generate_context!())
-            .expect("Error while starting the application UI (Tauri)");
+            // Set a custom panic hook to log panic information
+            panic::set_hook(Box::new(|panic_info| {
+                let message = format!("Application panicked: {:?}", panic_info);
+                error!("{}", message);
+                std::process::exit(1);
+            }));
+
+            // Workaround WebKit2GTK issue with NVIDIA drivers (likely explicit sync related?)
+            // Source: https://github.com/tauri-apps/tauri/issues/10702 (TODO: Remove this later)
+            #[cfg(target_os = "linux")]
+            unsafe {
+                env::set_var("WEBKIT_DISABLE_DMABUF_RENDERER", "1");
+            }
+
+            tauri::Builder::default()
+                .plugin(
+                    LogBuilder::default()
+                        .level(LevelFilter::Warn)
+                        .targets([
+                            Target::new(TargetKind::LogDir {
+                                file_name: Some("arnis".into()),
+                            }),
+                            Target::new(TargetKind::Stdout),
+                        ])
+                        .build(),
+                )
+                .plugin(tauri_plugin_shell::init())
+                .invoke_handler(tauri::generate_handler![
+                    gui_select_world,
+                    gui_start_generation,
+                    gui_get_version,
+                    gui_check_for_updates
+                ])
+                .setup(|app| {
+                    let app_handle = app.handle();
+                    let main_window = tauri::Manager::get_webview_window(app_handle, "main")
+                        .expect("Failed to get main window");
+                    progress::set_main_window(main_window);
+                    Ok(())
+                })
+                .run(tauri::generate_context!())
+                .expect("Error while starting the application UI (Tauri)");
+        }
    }
 }

+#[cfg(feature = "gui")]
 #[tauri::command]
 fn gui_select_world(generate_new: bool) -> Result<String, i32> {
    // Determine the default Minecraft 'saves' directory based on the OS
@@ -175,7 +213,14 @@ fn gui_select_world(generate_new: bool) -> Result<String, i32> {
                .join("saves")
        })
    } else if cfg!(target_os = "linux") {
-        dirs::home_dir().map(|home: PathBuf| home.join(".minecraft").join("saves"))
+        dirs::home_dir().map(|home| {
+            let flatpak_path = home.join(".var/app/com.mojang.Minecraft/.minecraft/saves");
+            if flatpak_path.exists() {
+                flatpak_path
+            } else {
+                home.join(".minecraft/saves")
+            }
+        })
    } else {
        None
    };
@@ -210,11 +255,11 @@ fn gui_select_world(generate_new: bool) -> Result<String, i32> {
                if session_lock_path.exists() {
                    // Try to acquire a lock on the session.lock file
                    if let Ok(file) = File::open(&session_lock_path) {
-                        if file.try_lock_shared().is_err() {
+                        if fs2::FileExt::try_lock_shared(&file).is_err() {
                            return Err(2); // Error code 2: The selected world is currently in use
                        } else {
                            // Release the lock immediately
-                            let _ = file.unlock();
+                            let _ = fs2::FileExt::unlock(&file);
                        }
                    }
                }
@@ -269,7 +314,7 @@ fn create_new_world(base_path: &Path) -> Result<String, String> {
    let mut level_data: Value = fastnbt::from_bytes(&decompressed_data)
        .map_err(|e| format!("Failed to parse level.dat template: {}", e))?;

-    // Modify the LevelName and LastPlayed fields
+    // Modify the LevelName, LastPlayed and player position fields
    if let Value::Compound(ref mut root) = level_data {
        if let Some(Value::Compound(ref mut data)) = root.get_mut("Data") {
            // Update LevelName
@@ -281,6 +326,27 @@ fn create_new_world(base_path: &Path) -> Result<String, String> {
                .map_err(|e| format!("Failed to get current time: {}", e))?;
            let current_time_millis = current_time.as_millis() as i64;
            data.insert("LastPlayed".to_string(), Value::Long(current_time_millis));
+
+            // Update player position and rotation
+            if let Some(Value::Compound(ref mut player)) = data.get_mut("Player") {
+                if let Some(Value::List(ref mut pos)) = player.get_mut("Pos") {
+                    if let Value::Double(ref mut x) = pos.get_mut(0).unwrap() {
+                        *x = -5.0;
+                    }
+                    if let Value::Double(ref mut y) = pos.get_mut(1).unwrap() {
+                        *y = -61.0;
+                    }
+                    if let Value::Double(ref mut z) = pos.get_mut(2).unwrap() {
+                        *z = -5.0;
+                    }
+                }
+
+                if let Some(Value::List(ref mut rot)) = player.get_mut("Rotation") {
+                    if let Value::Float(ref mut x) = rot.get_mut(0).unwrap() {
+                        *x = -45.0;
+                    }
+                }
+            }
        }
    }

@@ -309,11 +375,13 @@ fn create_new_world(base_path: &Path) -> Result<String, String> {
    Ok(new_world_path.display().to_string())
 }

+#[cfg(feature = "gui")]
 #[tauri::command]
 fn gui_get_version() -> String {
    env!("CARGO_PKG_VERSION").to_string()
 }

+#[cfg(feature = "gui")]
 #[tauri::command]
 fn gui_check_for_updates() -> Result<bool, String> {
    match version_check::check_for_updates() {
@@ -322,6 +390,7 @@ fn gui_check_for_updates() -> Result<bool, String> {
    }
 }

+#[cfg(feature = "gui")]
 #[tauri::command]
 fn gui_start_generation(
    bbox_text: String,
@@ -330,6 +399,7 @@ fn gui_start_generation(
    ground_level: i32,
    winter_mode: bool,
    floodfill_timeout: u64,
+    terrain_enabled: bool,
 ) -> Result<(), String> {
    tauri::async_runtime::spawn(async move {
        if let Err(e) = tokio::task::spawn_blocking(move || {
@@ -356,6 +426,7 @@ fn gui_start_generation(
                downloader: "requests".to_string(),
                scale: world_scale,
                ground_level,
+                terrain: terrain_enabled,
                winter: winter_mode,
                debug: false,
                timeout: Some(std::time::Duration::from_secs(floodfill_timeout)),
@@ -369,8 +440,17 @@ fn gui_start_generation(
                Ok(raw_data) => {
                    let (mut parsed_elements, scale_factor_x, scale_factor_z) =
                        osm_parser::parse_osm_data(&raw_data, reordered_bbox, &args);
-                    parsed_elements.sort_by_key(|element: &osm_parser::ProcessedElement| {
-                        osm_parser::get_priority(element)
+                    parsed_elements.sort_by(|el1, el2| {
+                        let (el1_priority, el2_priority) =
+                            (osm_parser::get_priority(el1), osm_parser::get_priority(el2));
+                        match (
+                            el1.tags().contains_key("landuse"),
+                            el2.tags().contains_key("landuse"),
+                        ) {
+                            (true, false) => std::cmp::Ordering::Greater,
+                            (false, true) => std::cmp::Ordering::Less,
+                            _ => el1_priority.cmp(&el2_priority),
+                        }
                    });

                    let _ = data_processing::generate_world(
--- a/src/osm_parser.rs
+++ b/src/osm_parser.rs
@@ -1,4 +1,4 @@
-use crate::{args::Args, progress::emit_gui_progress_update};
+use crate::{args::Args, cartesian::XZPoint, progress::emit_gui_progress_update};
 use colored::Colorize;
 use serde::Deserialize;
 use serde_json::Value;
@@ -44,6 +44,15 @@ pub struct ProcessedNode {
    pub z: i32,
 }

+impl ProcessedNode {
+    pub fn xz(&self) -> XZPoint {
+        XZPoint {
+            x: self.x,
+            z: self.z,
+        }
+    }
+}
+
 #[derive(Debug, Clone)]
 pub struct ProcessedWay {
    pub id: u64,
@@ -281,7 +290,8 @@ pub fn get_priority(element: &ProcessedElement) -> usize {
 }

 // (lat meters, lon meters)
-fn geo_distance(lat1: f64, lat2: f64, lon1: f64, lon2: f64) -> (f64, f64) {
+#[inline]
+pub fn geo_distance(lat1: f64, lat2: f64, lon1: f64, lon2: f64) -> (f64, f64) {
    let z: f64 = lat_distance(lat1, lat2);

    // distance between two lons depends on their latitude. In this case we'll just average them
--- a/src/retrieve_data.rs
+++ b/src/retrieve_data.rs
@@ -95,9 +95,10 @@ pub fn fetch_data(
        "https://z.overpass-api.de/api/interpreter",
        //"https://overpass.kumi.systems/api/interpreter", // This server is not reliable anymore
        //"https://overpass.private.coffee/api/interpreter", // This server is not reliable anymore
-        "https://overpass.osm.ch/api/interpreter",
    ];
-    let url: &&str = api_servers.choose(&mut rand::thread_rng()).unwrap();
+    let fallback_api_servers: Vec<&str> =
+        vec!["https://maps.mail.ru/osm/tools/overpass/api/interpreter"];
+    let mut url: &&str = api_servers.choose(&mut rand::thread_rng()).unwrap();

    // Generate Overpass API query for bounding box
    let query: String = format!(
@@ -140,11 +141,30 @@ pub fn fetch_data(
        Ok(data)
    } else {
        // Fetch data from Overpass API
-        let response: String = match download_method {
-            "requests" => download_with_reqwest(url, &query)?,
-            "curl" => download_with_curl(url, &query)?,
-            "wget" => download_with_wget(url, &query)?,
-            _ => download_with_reqwest(url, &query)?, // Default to requests
+        let mut attempt = 0;
+        let max_attempts = 1;
+        let response: String = loop {
+            let result = match download_method {
+                "requests" => download_with_reqwest(url, &query),
+                "curl" => download_with_curl(url, &query).map_err(|e| e.into()),
+                "wget" => download_with_wget(url, &query).map_err(|e| e.into()),
+                _ => download_with_reqwest(url, &query), // Default to requests
+            };
+
+            match result {
+                Ok(response) => break response,
+                Err(error) => {
+                    if attempt >= max_attempts {
+                        return Err(error);
+                    }
+
+                    println!("Request failed. Switching to fallback url...");
+                    url = fallback_api_servers
+                        .choose(&mut rand::thread_rng())
+                        .unwrap();
+                    attempt += 1;
+                }
+            }
        };

        let data: Value = serde_json::from_str(&response)?;
@@ -171,9 +191,11 @@ pub fn fetch_data(
                // General case for when there are no elements and no specific remark
                eprintln!(
                    "{}",
-                    "Error! No data available in this region.".red().bold()
+                    "Error! API returned no data. Please try again!"
+                        .red()
+                        .bold()
                );
-                emit_gui_error("No data available in this region.");
+                emit_gui_error("API returned no data. Please try again!");
            }

            if debug {
--- a/src/world_editor.rs
+++ b/src/world_editor.rs
@@ -1,4 +1,3 @@
-use crate::args::Args;
 use crate::block_definitions::*;
 use crate::progress::emit_gui_progress_update;
 use colored::Colorize;
@@ -6,10 +5,12 @@ use fastanvil::Region;
 use fastnbt::{LongArray, Value};
 use fnv::FnvHashMap;
 use indicatif::{ProgressBar, ProgressStyle};
+use rayon::prelude::*;
 use serde::{Deserialize, Serialize};
 use std::collections::HashMap;
 use std::fs::File;
 use std::io::Write;
+use std::sync::atomic::{AtomicU64, Ordering};

 #[derive(Serialize, Deserialize)]
 #[serde(rename_all = "camelCase")]
@@ -226,23 +227,21 @@ impl WorldToModify {
    }
 }

-pub struct WorldEditor<'a> {
+pub struct WorldEditor {
    region_dir: String,
    world: WorldToModify,
    scale_factor_x: f64,
    scale_factor_z: f64,
-    args: &'a Args,
 }

-impl<'a> WorldEditor<'a> {
+impl WorldEditor {
    /// Initializes the WorldEditor with the region directory and template region path.
-    pub fn new(region_dir: &str, scale_factor_x: f64, scale_factor_z: f64, args: &'a Args) -> Self {
+    pub fn new(region_dir: &str, scale_factor_x: f64, scale_factor_z: f64) -> Self {
        Self {
            region_dir: region_dir.to_string(),
            world: WorldToModify::default(),
            scale_factor_x,
            scale_factor_z,
-            args,
        }
    }

@@ -271,12 +270,11 @@ impl<'a> WorldEditor<'a> {
        (self.scale_factor_x as i32, self.scale_factor_x as i32)
    }

-    // Unused and not tested
-    /*pub fn block_at(&self, x: i32, y: i32, z: i32) -> bool {
+    pub fn block_at(&self, x: i32, y: i32, z: i32) -> bool {
        self.world.get_block(x, y, z).is_some()
-    }*/
+    }

-    #[allow(clippy::too_many_arguments)]
+    #[allow(clippy::too_many_arguments, dead_code)]
    pub fn set_sign(
        &mut self,
        line1: String,
@@ -432,15 +430,95 @@ impl<'a> WorldEditor<'a> {
        false
    }

+    /// Helper function to create a base chunk with grass blocks at Y -62
+    fn create_base_chunk(abs_chunk_x: i32, abs_chunk_z: i32) -> (Vec<u8>, bool) {
+        let mut chunk = ChunkToModify::default();
+
+        // Fill the bottom layer with grass blocks at Y -62
+        for x in 0..16 {
+            for z in 0..16 {
+                chunk.set_block(x, -62, z, GRASS_BLOCK);
+            }
+        }
+
+        // Prepare chunk data
+        let chunk_data = Chunk {
+            sections: chunk.sections().collect(),
+            x_pos: abs_chunk_x,
+            z_pos: abs_chunk_z,
+            is_light_on: 0,
+            other: chunk.other,
+        };
+
+        // Create the Level wrapper
+        let level_data = HashMap::from([(
+            "Level".to_string(),
+            Value::Compound(HashMap::from([
+                ("xPos".to_string(), Value::Int(abs_chunk_x)),
+                ("zPos".to_string(), Value::Int(abs_chunk_z)),
+                ("isLightOn".to_string(), Value::Byte(0)),
+                (
+                    "sections".to_string(),
+                    Value::List(
+                        chunk_data
+                            .sections
+                            .iter()
+                            .map(|section| {
+                                Value::Compound(HashMap::from([
+                                    ("Y".to_string(), Value::Byte(section.y)),
+                                    (
+                                        "block_states".to_string(),
+                                        Value::Compound(HashMap::from([
+                                            (
+                                                "palette".to_string(),
+                                                Value::List(
+                                                    section
+                                                        .block_states
+                                                        .palette
+                                                        .iter()
+                                                        .map(|item| {
+                                                            Value::Compound(HashMap::from([(
+                                                                "Name".to_string(),
+                                                                Value::String(item.name.clone()),
+                                                            )]))
+                                                        })
+                                                        .collect(),
+                                                ),
+                                            ),
+                                            (
+                                                "data".to_string(),
+                                                Value::LongArray(
+                                                    section
+                                                        .block_states
+                                                        .data
+                                                        .clone()
+                                                        .unwrap_or_else(|| LongArray::new(vec![])),
+                                                ),
+                                            ),
+                                        ])),
+                                    ),
+                                ]))
+                            })
+                            .collect(),
+                    ),
+                ),
+            ])),
+        )]);
+
+        // Serialize the chunk with Level wrapper
+        let mut ser_buffer = Vec::with_capacity(8192);
+        fastnbt::to_writer(&mut ser_buffer, &level_data).unwrap();
+
+        (ser_buffer, true)
+    }
+
    /// Saves all changes made to the world by writing modified chunks to the appropriate region files.
    pub fn save(&mut self) {
        println!("{} Saving world...", "[5/5]".bold());
        emit_gui_progress_update(90.0, "Saving world...");

-        let _debug: bool = self.args.debug;
-        let total_regions: u64 = self.world.regions.len() as u64;
-
-        let save_pb: ProgressBar = ProgressBar::new(total_regions);
+        let total_regions = self.world.regions.len() as u64;
+        let save_pb = ProgressBar::new(total_regions);
        save_pb.set_style(
            ProgressStyle::default_bar()
                .template(
@@ -452,50 +530,223 @@ impl<'a> WorldEditor<'a> {

        let total_steps: f64 = 9.0;
        let progress_increment_save: f64 = total_steps / total_regions as f64;
-        let mut current_progress_save: f64 = 90.0;
-        let mut last_emitted_progress: f64 = current_progress_save;
+        let current_progress = AtomicU64::new(900);
+        let regions_processed = AtomicU64::new(0);

-        for ((region_x, region_z), region_to_modify) in &self.world.regions {
-            let mut region: Region<File> = self.create_region(*region_x, *region_z);
+        self.world
+            .regions
+            .par_iter()
+            .for_each(|((region_x, region_z), region_to_modify)| {
+                let mut region = self.create_region(*region_x, *region_z);
+                let mut ser_buffer = Vec::with_capacity(8192);

-            for chunk_x in 0..32 {
-                for chunk_z in 0..32 {
-                    let data: Vec<u8> = region
-                        .read_chunk(chunk_x as usize, chunk_z as usize)
-                        .unwrap()
-                        .unwrap();
+                for (&(chunk_x, chunk_z), chunk_to_modify) in &region_to_modify.chunks {
+                    if !chunk_to_modify.sections.is_empty() || !chunk_to_modify.other.is_empty() {
+                        // Read existing chunk data if it exists
+                        let existing_data = region
+                            .read_chunk(chunk_x as usize, chunk_z as usize)
+                            .unwrap()
+                            .unwrap_or_default();

-                    let mut chunk: Chunk = fastnbt::from_bytes(&data).unwrap();
+                        // Parse existing chunk or create new one
+                        let mut chunk: Chunk = if !existing_data.is_empty() {
+                            fastnbt::from_bytes(&existing_data).unwrap()
+                        } else {
+                            Chunk {
+                                sections: Vec::new(),
+                                x_pos: chunk_x + (region_x * 32),
+                                z_pos: chunk_z + (region_z * 32),
+                                is_light_on: 0,
+                                other: FnvHashMap::default(),
+                            }
+                        };

-                    if let Some(chunk_to_modify) = region_to_modify.get_chunk(chunk_x, chunk_z) {
-                        chunk.sections = chunk_to_modify.sections().collect();
-                        chunk.other.extend(chunk_to_modify.other.clone());
+                        // Update sections while preserving existing data
+                        let new_sections: Vec<Section> = chunk_to_modify.sections().collect();
+                        for new_section in new_sections {
+                            if let Some(existing_section) =
+                                chunk.sections.iter_mut().find(|s| s.y == new_section.y)
+                            {
+                                // Merge block states
+                                existing_section.block_states.palette =
+                                    new_section.block_states.palette;
+                                existing_section.block_states.data = new_section.block_states.data;
+                            } else {
+                                // Add new section if it doesn't exist
+                                chunk.sections.push(new_section);
+                            }
+                        }
+
+                        // Preserve existing block entities and merge with new ones
+                        if let Some(existing_entities) = chunk.other.get_mut("block_entities") {
+                            if let Some(new_entities) = chunk_to_modify.other.get("block_entities")
+                            {
+                                if let (Value::List(existing), Value::List(new)) =
+                                    (existing_entities, new_entities)
+                                {
+                                    // Remove old entities that are replaced by new ones
+                                    existing.retain(|e| {
+                                        if let Value::Compound(map) = e {
+                                            let (x, y, z) = get_entity_coords(map);
+                                            !new.iter().any(|new_e| {
+                                                if let Value::Compound(new_map) = new_e {
+                                                    let (nx, ny, nz) = get_entity_coords(new_map);
+                                                    x == nx && y == ny && z == nz
+                                                } else {
+                                                    false
+                                                }
+                                            })
+                                        } else {
+                                            true
+                                        }
+                                    });
+                                    // Add new entities
+                                    existing.extend(new.clone());
+                                }
+                            }
+                        } else {
+                            // If no existing entities, just add the new ones
+                            if let Some(new_entities) = chunk_to_modify.other.get("block_entities")
+                            {
+                                chunk
+                                    .other
+                                    .insert("block_entities".to_string(), new_entities.clone());
+                            }
+                        }
+
+                        // Update chunk coordinates and flags
+                        chunk.x_pos = chunk_x + (region_x * 32);
+                        chunk.z_pos = chunk_z + (region_z * 32);
+
+                        // Create Level wrapper and save
+                        let level_data = create_level_wrapper(&chunk);
+                        ser_buffer.clear();
+                        fastnbt::to_writer(&mut ser_buffer, &level_data).unwrap();
+                        region
+                            .write_chunk(chunk_x as usize, chunk_z as usize, &ser_buffer)
+                            .unwrap();
                    }
-
-                    chunk.x_pos = chunk_x + region_x * 32;
-                    chunk.z_pos = chunk_z + region_z * 32;
-                    chunk.is_light_on = 0; // Force minecraft to recompute
-
-                    let ser: Vec<u8> = fastnbt::to_bytes(&chunk).unwrap();
-
-                    // Write chunk data back to the correct location, ensuring correct chunk coordinates
-                    let expected_chunk_location: (usize, usize) =
-                        ((chunk_x as usize) & 31, (chunk_z as usize) & 31);
-                    region
-                        .write_chunk(expected_chunk_location.0, expected_chunk_location.1, &ser)
-                        .unwrap();
                }
-            }

-            save_pb.inc(1);
+                // Second pass: ensure all chunks exist
+                for chunk_x in 0..32 {
+                    for chunk_z in 0..32 {
+                        let abs_chunk_x = chunk_x + (region_x * 32);
+                        let abs_chunk_z = chunk_z + (region_z * 32);

-            current_progress_save += progress_increment_save;
-            if (current_progress_save - last_emitted_progress).abs() > 0.25 {
-                emit_gui_progress_update(current_progress_save, "Saving world...");
-                last_emitted_progress = current_progress_save;
-            }
-        }
+                        // Check if chunk exists in our modifications
+                        let chunk_exists =
+                            region_to_modify.chunks.contains_key(&(chunk_x, chunk_z));
+
+                        // If chunk doesn't exist, create it with base layer
+                        if !chunk_exists {
+                            let (ser_buffer, _) = Self::create_base_chunk(abs_chunk_x, abs_chunk_z);
+                            region
+                                .write_chunk(chunk_x as usize, chunk_z as usize, &ser_buffer)
+                                .unwrap();
+                        }
+                    }
+                }
+
+                // Update progress
+                let regions_done = regions_processed.fetch_add(1, Ordering::SeqCst);
+                let new_progress = (90.0 + (regions_done as f64 * progress_increment_save)) * 10.0;
+                let prev_progress =
+                    current_progress.fetch_max(new_progress as u64, Ordering::SeqCst);
+
+                if new_progress as u64 - prev_progress > 1 {
+                    emit_gui_progress_update(new_progress / 10.0, "Saving world...");
+                }
+
+                save_pb.inc(1);
+            });

        save_pb.finish();
    }
 }
+
+// Helper function to get entity coordinates
+fn get_entity_coords(entity: &HashMap<String, Value>) -> (i32, i32, i32) {
+    let x = if let Value::Int(x) = entity.get("x").unwrap_or(&Value::Int(0)) {
+        *x
+    } else {
+        0
+    };
+    let y = if let Value::Int(y) = entity.get("y").unwrap_or(&Value::Int(0)) {
+        *y
+    } else {
+        0
+    };
+    let z = if let Value::Int(z) = entity.get("z").unwrap_or(&Value::Int(0)) {
+        *z
+    } else {
+        0
+    };
+    (x, y, z)
+}
+
+fn create_level_wrapper(chunk: &Chunk) -> HashMap<String, Value> {
+    HashMap::from([(
+        "Level".to_string(),
+        Value::Compound(HashMap::from([
+            ("xPos".to_string(), Value::Int(chunk.x_pos)),
+            ("zPos".to_string(), Value::Int(chunk.z_pos)),
+            (
+                "isLightOn".to_string(),
+                Value::Byte(i8::try_from(chunk.is_light_on).unwrap()),
+            ),
+            (
+                "sections".to_string(),
+                Value::List(
+                    chunk
+                        .sections
+                        .iter()
+                        .map(|section| {
+                            Value::Compound(HashMap::from([
+                                ("Y".to_string(), Value::Byte(section.y)),
+                                (
+                                    "block_states".to_string(),
+                                    Value::Compound(HashMap::from([
+                                        (
+                                            "palette".to_string(),
+                                            Value::List(
+                                                section
+                                                    .block_states
+                                                    .palette
+                                                    .iter()
+                                                    .map(|item| {
+                                                        let mut palette_item = HashMap::from([(
+                                                            "Name".to_string(),
+                                                            Value::String(item.name.clone()),
+                                                        )]);
+                                                        if let Some(props) = &item.properties {
+                                                            palette_item.insert(
+                                                                "Properties".to_string(),
+                                                                props.clone(),
+                                                            );
+                                                        }
+                                                        Value::Compound(palette_item)
+                                                    })
+                                                    .collect(),
+                                            ),
+                                        ),
+                                        (
+                                            "data".to_string(),
+                                            Value::LongArray(
+                                                section
+                                                    .block_states
+                                                    .data
+                                                    .clone()
+                                                    .unwrap_or_else(|| LongArray::new(vec![])),
+                                            ),
+                                        ),
+                                    ])),
+                                ),
+                            ]))
+                        })
+                        .collect(),
+                ),
+            ),
+        ])),
+    )])
+}
--- a/tauri.conf.json
+++ b/tauri.conf.json
@@ -1,7 +1,7 @@
 {
  "$schema": "https://schema.tauri.app/config/2",
  "productName": "Arnis",
-  "version": "2.1.3",
+  "version": "2.2.1",
  "identifier": "com.louisdev.arnis",
  "build": {
    "frontendDist": "gui-src"
Author	SHA1	Message	Date
louis-e	449fcc18bd	Remove unused leaflet.draw.override.js	2025-05-19 17:18:15 +02:00
louis-e	c69e124eb5	Switch map provider from Mapbox to OSM	2025-05-19 17:11:33 +02:00
Louis Erbkamm	7956826c07	Update release.yml	2025-05-18 16:48:02 +02:00
Louis Erbkamm	acbe9adedf	Update tauri.conf.json	2025-05-18 16:24:25 +02:00
Louis Erbkamm	4ec8f65e6f	Update version	2025-05-18 16:23:59 +02:00
louis-e	fd2d4b272b	Mapbox key hotfix	2025-05-18 16:21:06 +02:00
Louis Erbkamm	daf07bd743	Merge pull request #316 from louis-e/prepare-release-fmt Handle block properties in new saving logic	2025-01-21 23:36:26 +01:00
louis-e	163ab0407d	Handle block properties in new saving logic	2025-01-21 23:36:04 +01:00
Louis Erbkamm	0361e7d63d	Merge pull request #315 from louis-e/prepare-release Prepare release	2025-01-21 23:33:02 +01:00
louis-e	bc422460ff	Handle block properties in new saving logic	2025-01-21 23:28:55 +01:00
louis-e	53f0097884	Prepare Alpine Release	2025-01-21 23:28:04 +01:00
Louis Erbkamm	bbfb63886d	Update README.md	2025-01-21 22:37:38 +01:00
Louis Erbkamm	928f487a29	Merge pull request #260 from austenadler/feature/allow-disabling-gui Allow disabling gui at compile time	2025-01-21 22:34:57 +01:00
Louis Erbkamm	ff7a09061e	Merge branch 'main' into feature/allow-disabling-gui	2025-01-21 22:13:27 +01:00
Louis Erbkamm	911ec00ddb	Merge pull request #312 from louis-e/minor-tweaks Minor tweaks	2025-01-21 20:47:28 +01:00
louis-e	54137f2117	Updated README	2025-01-21 20:46:53 +01:00
louis-e	50d38a1dd4	Localization formatting changes	2025-01-21 20:44:08 +01:00
louis-e	e5ab62eb18	Added comments for better documentation	2025-01-21 20:36:39 +01:00
Louis Erbkamm	1a8a3114f4	Merge pull request #299 from HelleBenjamin/main Add Finnish translation	2025-01-21 20:31:58 +01:00
Louis Erbkamm	a52ba2bd39	Merge pull request #289 from TheComputerGuy96/klaipeda Translation support rework	2025-01-21 20:30:34 +01:00
Benjamin Helle	8195f0bc6e	Merge branch 'main' into main	2025-01-21 16:49:03 +02:00
Louis Erbkamm	4df4a3de32	Merge pull request #306 from wielandb/main Add "razed" to values of railway=* not rendered	2025-01-20 23:50:07 +01:00
Louis Erbkamm	e65a1ee37e	Merge branch 'main' into main	2025-01-20 23:47:10 +01:00
Louis Erbkamm	66e47e190a	Merge branch 'main' into klaipeda	2025-01-20 23:46:22 +01:00
Louis Erbkamm	8755fd3285	Merge pull request #308 from louis-e/elevation-wip Merge Elevation feature	2025-01-20 23:44:28 +01:00
louis-e	982ef56b29	Fix chunk in wrong location issue with unfinished region patch	2025-01-20 23:13:44 +01:00
louis-e	28070d3c51	Fix chunk in wrong location issue with unfinished region patch	2025-01-20 23:03:57 +01:00
louis-e	d9a0a4aa86	CI (fmt): Fix formatting	2025-01-20 22:45:02 +01:00
louis-e	1f0f6676ed	Added railway orientation blocks	2025-01-20 21:28:00 +01:00
louis-e	ff44fe4eda	Adapted update messages	2025-01-20 21:27:37 +01:00
louis-e	42976b0113	Fixed railway orientation	2025-01-20 21:27:07 +01:00
louis-e	55b170fb7d	TODO Edits	2025-01-20 21:26:54 +01:00
louis-e	852bbf2236	Added self signed signature to Windows release and added Mac release	2025-01-20 21:24:07 +01:00
louis-e	cc6080c0c3	Adapt aeroways to new elevation logic	2025-01-20 20:17:44 +01:00
louis-e	5672ca3f1e	Update player rotation in world generation and minor tweaks	2025-01-20 20:00:00 +01:00
Wieland	fc29544835	Fix indentation	2025-01-19 03:35:13 +01:00
Wieland	bf6ac1f61a	Add "turntable" to values that should not be rendered	2025-01-19 03:32:13 +01:00
louis-e	8c17a5b0bb	Modify player position for world generation	2025-01-19 02:53:37 +01:00
Wieland	bc6ffa3bf9	Change formatting	2025-01-19 02:22:58 +01:00
louis-e	dec0317790	Implement fixes for elevation	2025-01-19 01:46:58 +01:00
louis-e	091acd5849	Added dynamic year in license	2025-01-19 01:46:37 +01:00
Wieland	056203fb21	Add "razed" to values of railway=* not rendered	2025-01-19 01:41:28 +01:00
louis-e	415c9d33fe	Bresenham algorithm optimization	2025-01-19 00:14:23 +01:00
louis-e	1820112093	CI (fmt) fix: Merge main into elevation-wip	2025-01-19 00:08:26 +01:00
louis-e	c573a02fd6	Optimized cartesian	2025-01-18 23:52:08 +01:00
louis-e	4c6b9833eb	Optimized bresenham algorithm performance	2025-01-18 23:51:41 +01:00
louis-e	8cb8d76357	Set terrain toggle to not-default on	2025-01-18 23:51:17 +01:00
louis-e	fc105b84e0	Merge main into elevation-wip	2025-01-18 21:23:53 +01:00
louis-e	f873a7ab69	Merge branch 'main' into elevation-wip	2025-01-18 18:43:03 +01:00
louis-e	61a67240a6	WIP: Save changes before merging main	2025-01-18 18:35:39 +01:00
Austen Adler	c0753ab23e	Format with consistent style	2025-01-16 22:41:53 -05:00
Austen Adler	9461d1f46e	Merge remote-tracking branch 'origin/main' into feature/allow-disabling-gui	2025-01-16 22:41:22 -05:00
Austen Adler	3036237fdf	Free and reattach to console when running on Windows	2025-01-16 22:31:32 -05:00
Benjamin Helle	95e71b8da5	Added finnish language json	2025-01-17 00:57:53 +02:00
Echo J	255786bc93	Add Lithuanian translation This may be strange in some places though	2025-01-15 16:44:13 +02:00
Echo J	3c552fe5ed	Make placeholder strings translatable (and license one too) There's some strings coming from the Rust side though (which will require extra code work)	2025-01-15 16:44:13 +02:00
Echo J	49ff415316	Use localization helper function for JS-based HTML elements	2025-01-15 16:44:13 +02:00
Echo J	71315c60ea	Rework applyLocalization() function This removes all of the boilerplate for setting strings (now the strings are set by looping through an object and calling a helper function) The helper function also has an English string fallback if a translation doesn't have one And finally some functions/.html code were adjusted to simplify the localization helper function (this also means innerHTML is no longer used for safety)	2025-01-15 16:44:11 +02:00
Echo J	18b1ea0e0b	Don't hardcode language codes This will make adding a new translation a bit easier (this change also accepts full codes for language variations like en-UK or pt-BR) Also specify a full code for English and Chinese translations (Chinese variation was found with a translation tool's language detector so it might not be accurate)	2025-01-15 16:43:23 +02:00
Echo J	c6a8da0b40	Remove unused translation strings These 2 strings are a duplicate of existing ones (which should reduce translation boilerplate a bit)	2025-01-15 16:43:23 +02:00
Louis Erbkamm	308498550b	Merge pull request #290 from TheComputerGuy96/misc-fixes Miscellaneous fixes	2025-01-15 14:35:16 +01:00
Louis Erbkamm	f7e917edc7	Merge pull request #286 from RedAuburn/better-fences Support barrier / fence types	2025-01-15 14:32:09 +01:00
Echo J	8221da46e0	Add a NVIDIA WebKit workaround	2025-01-14 21:30:19 +02:00
Echo J	3645b7edd7	Fix wrong variable in an error handler	2025-01-14 21:01:17 +02:00
Echo J	606779f681	Set a border CSS property for buttons/input boxes For some reason the background color isn't applied on input boxes (only on WebKit) if I don't set this	2025-01-14 20:43:56 +02:00
Echo J	dce5f472f0	Make the GUI partially work in a web browser The lack of window.__TAURI__ object prevents most of the JS code from running (this change stubs it which allows the Tauri GUI to be tested in a web browser with a simple web server like PHP's one)	2025-01-14 20:39:08 +02:00
Harry Bond	f4bf8c1d3c	Support barrier / fence types	2025-01-13 22:22:28 +00:00
louis-e	686ac2c181	Fix rebasing issues	2025-01-12 22:45:50 +01:00
Louis Erbkamm	b334ed9841	Merge pull request #280 from krvstek/main simplification & fixes for Polish	2025-01-12 22:26:27 +01:00
louis-e	96dc9ced30	Merge branch 'main' into elevation-wip	2025-01-12 22:23:22 +01:00
krvstek.	03d86f4552	simplification & fixes for Polish	2025-01-12 21:03:15 +00:00
Louis Erbkamm	6e3406f117	Merge pull request #276 from zer0-dev/russia_overpass_workaround Add fallback api urls specifically for Russia	2025-01-12 20:05:16 +01:00
zer0-dev	7e929d5ef3	Add fallback api urls specifically for Russia	2025-01-12 21:27:18 +03:00
Louis Erbkamm	49a5ed8157	Merge pull request #272 from louis-e/park-relation-fix Park relation fix and faster saving	2025-01-12 18:01:05 +01:00
louis-e	f60170ef59	CI (fmt) fix: Fixed leisure generation for multipolygons	2025-01-12 17:50:13 +01:00
louis-e	b34bf4f646	CI (fmt) fix: Fixed leisure generation for multipolygons	2025-01-12 17:46:56 +01:00
Austen Adler	efc14821cf	Remove note about running with no-default-features	2025-01-12 11:46:30 -05:00
louis-e	ba9c7df5ff	Merge branch 'main' into park-relation-fix	2025-01-12 17:41:16 +01:00
louis-e	3eb29a0c21	Fixed leisure generation for multipolygons	2025-01-12 17:38:51 +01:00
louis-e	17ead3c2fc	Fixed leisure generation for multipolygons	2025-01-12 17:37:30 +01:00
louis-e	f661f174bd	Optimize world save with parallel chunks & buffer reuse	2025-01-12 17:15:09 +01:00
louis-e	7792930277	Optimize world save with parallel chunks & buffer reuse	2025-01-12 17:05:45 +01:00
louis-e	18d3e45d2c	Optimize world save with parallel chunks & buffer reuse	2025-01-12 17:05:32 +01:00
Louis Erbkamm	c2b9f87688	Update bug_report.md	2025-01-12 16:39:20 +01:00
Louis Erbkamm	0850bca4de	Update prerelease.yml	2025-01-12 16:32:31 +01:00
Louis Erbkamm	ef25c669c1	Merge pull request #270 from louis-e/prerelease-action Added prerelease workflow	2025-01-12 16:20:12 +01:00
louis-e	df09afe868	Added prerelease workflow	2025-01-12 16:19:42 +01:00
Louis Erbkamm	e9a2329e38	Update README.md	2025-01-12 16:10:56 +01:00
Louis Erbkamm	9cb919eeae	Merge pull request #269 from louis-e/readme-enhancement Readme enhancements and credits addition	2025-01-12 16:05:05 +01:00
Louis Erbkamm	e2c9b07e91	Merge branch 'main' into readme-enhancement	2025-01-12 16:04:14 +01:00
louis-e	3efb8460c1	Readme enhancements and credits addition	2025-01-12 16:02:56 +01:00
Louis Erbkamm	0efa681bb9	Merge pull request #253 from zer0-dev/main Fix tall grass generating on non-grass blocks. Colored roofs only for single houses	2025-01-12 01:27:08 +01:00
Louis Erbkamm	a92c5bb01f	Merge pull request #267 from zer0-dev/custom_bbox_show Show custom bbox on map-container	2025-01-12 00:18:33 +01:00
zer0-dev	408e182be2	Show custom bbox on map-container	2025-01-11 21:45:42 +03:00
zer0-dev	ea3cf80472	Add SNOW_BLOCK to whitelist for tall grass generation. Sort parsed_elements to put landuse elements in the end	2025-01-11 20:47:02 +03:00
zer0-dev	28ecbb58e7	Merge branch 'louis-e:main' into main	2025-01-11 19:47:08 +03:00
Louis Erbkamm	7b7ff6b534	Merge pull request #265 from louis-e/russian-line-breaking Simplified translation to avoid line breaking	2025-01-11 17:09:09 +01:00
louis-e	5e6eb0969b	Simplified translation to avoid line breaking	2025-01-11 17:06:44 +01:00
Louis Erbkamm	9d6c528438	Merge pull request #257 from zer0-dev/min_level_fix Fix building levels counting as difference between buildng:levels and building:min_level	2025-01-11 17:04:47 +01:00
Louis Erbkamm	920725d21f	Merge pull request #258 from RedAuburn/kerbs Ignore barrier=kerb	2025-01-11 17:04:16 +01:00
Louis Erbkamm	3689bfbf6d	Merge pull request #259 from RedAuburn/mc-flatpak Use Minecraft Flatpak directory if it exists	2025-01-11 17:04:05 +01:00
Louis Erbkamm	8ed864210f	Merge branch 'main' into main	2025-01-11 16:55:50 +01:00
Louis Erbkamm	a0d242716d	Merge branch 'main' into min_level_fix	2025-01-11 16:53:56 +01:00
Louis Erbkamm	a604e546a7	Merge branch 'main' into kerbs	2025-01-11 16:53:23 +01:00
Louis Erbkamm	3e88da384a	Merge branch 'main' into feature/allow-disabling-gui	2025-01-11 16:53:11 +01:00
Louis Erbkamm	3c5f5eff24	Merge branch 'main' into mc-flatpak	2025-01-11 16:52:55 +01:00
Louis Erbkamm	c750b90719	Merge pull request #264 from louis-e/clippy-fix Fixed CI Clippy warnings	2025-01-11 16:52:37 +01:00
louis-e	553dce3c3b	Fixed CI Clippy warnings	2025-01-11 16:50:31 +01:00
Harry Bond	24d7a7e3eb	Use Minecraft Flatpak directory if it exists	2025-01-11 12:05:42 +00:00
zer0-dev	b34a9c851c	Formatting	2025-01-11 11:38:36 +03:00
zer0-dev	1274781223	Formatting	2025-01-11 11:25:05 +03:00
Austen Adler	ab21b88c90	Allow disabling gui	2025-01-10 22:49:40 -05:00
Harry Bond	9470bbf87f	Ignore kerbs Signed-off-by: Harry Bond <me@hbond.xyz>	2025-01-10 23:11:54 +00:00
zer0-dev	c4e27b6059	Fix Github Actions CI	2025-01-10 23:01:54 +03:00
zer0-dev	c26cb933dc	Fix building levels counting as difference between buildng:levels and building:min_level	2025-01-10 22:58:00 +03:00
zer0-dev	83be3c7c64	Fix tall grass generating on non-grass blocks. Change random roof color to generate only on single houses	2025-01-09 23:04:17 +03:00
louis-e	ac8c5bf466	Enabled terrain by default	2025-01-06 23:13:48 +01:00
louis-e	e4c6208b22	Added elevation as settings feature	2025-01-06 23:12:42 +01:00
louis-e	f5144d7ba4	Added terrain logic to other element processors	2025-01-06 22:23:42 +01:00
louis-e	f50e10891b	Patched all remaining element processors to new elevation logic (except for bridges)	2025-01-06 20:13:31 +01:00
Louis Erbkamm	66819a577b	Merge pull request #209 from louis-e/main Bring elevation-wip up to date to main code base	2025-01-06 17:53:51 +01:00
louis-e	c0778c265f	Resolved merge conflicts between elevation-wip and main	2025-01-06 02:00:49 +01:00
Stephen D	c9c0cb2f2c	rivers	2024-10-24 19:24:40 -03:00
Stephen D	18de6ec808	very beginnings of elevation. Using a sinewave map and not everything has been moved onto the surface yet. Also, some things need better logic when placed on the surface (buildings go underground a bit)	2024-10-24 19:24:39 -03:00
Stephen D	9f521489ab	raise up world	2024-10-23 22:07:53 -03:00