mirror of
https://github.com/Facepunch/sbox-public.git
synced 2026-08-01 16:28:36 -04:00
d6a63a1b07
* dont calculate scane bounds for every trace * add trace ground parallel * Use Jittered Grid instead of random points - Less placement misses(more performant) - More uniforma placement + Added TraceParallel to place clutter all at once instead of sequentially https://files.facepunch.com/antopilo/1b1011b1/UQcbpBEvwg.png * Save proxy recreation with transform physics body - Add clutter tag to physics body itself * forgot this part * TerrainScatterer now uses traceGroundParallel * Clean up some garbage in scatterer functions * dotnet format * rename TraceGroundParallel -> BatchTraceGround
89 lines
2.2 KiB
C#
89 lines
2.2 KiB
C#
namespace Sandbox.Clutter;
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[Expose]
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public class SimpleScatterer : Scatterer
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{
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/// <summary>
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/// Scale range for spawned objects.
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/// </summary>
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[Property]
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public RangedFloat Scale { get; set; } = new RangedFloat( 0.8f, 1.2f );
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/// <summary>
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/// Points per square meter. 0.05 = sparse trees, 0.5 = dense grass.
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/// </summary>
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[Property, Range( 0.001f, 2f )]
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public float Density { get; set; } = 0.05f;
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[Property, Group( "Placement" )]
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public bool PlaceOnGround { get; set; } = true;
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[Property, Group( "Placement" ), ShowIf( nameof( PlaceOnGround ), true )]
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public float HeightOffset { get; set; }
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[Property, Group( "Placement" ), ShowIf( nameof( PlaceOnGround ), true )]
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public bool AlignToNormal { get; set; }
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protected override List<ClutterInstance> Generate( BBox bounds, ClutterDefinition clutter, Scene scene = null )
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{
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scene ??= Game.ActiveScene;
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if ( scene == null || clutter == null )
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return [];
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var pointCount = CalculatePointCount( bounds, Density );
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var points = JitteredGridPoints( bounds, pointCount );
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var totalPoints = points.Length;
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var instances = new List<ClutterInstance>( totalPoints );
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if ( totalPoints == 0 )
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return instances;
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var scales = new float[totalPoints];
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var yaws = new float[totalPoints];
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for ( int i = 0; i < totalPoints; i++ )
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{
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scales[i] = Random.Float( Scale.Min, Scale.Max );
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yaws[i] = Random.Float( 0f, 360f );
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}
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SceneTraceResult[] traces = null;
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if ( PlaceOnGround )
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{
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var sceneBounds = scene.GetBounds();
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traces = BatchTraceGround( scene, points, sceneBounds );
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}
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for ( int i = 0; i < totalPoints; i++ )
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{
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var point = points[i];
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var yaw = yaws[i];
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var rotation = Rotation.FromYaw( yaw );
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if ( PlaceOnGround )
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{
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var trace = traces[i];
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if ( !trace.Hit )
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continue;
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point = trace.HitPosition + trace.Normal * HeightOffset;
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rotation = AlignToNormal
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? GetAlignedRotation( trace.Normal, yaw )
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: Rotation.FromYaw( yaw );
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}
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var entry = GetRandomEntry( clutter );
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if ( entry == null )
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continue;
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instances.Add( new ClutterInstance
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{
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Transform = new Transform( point, rotation, scales[i] ),
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Entry = entry
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} );
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}
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return instances;
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}
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}
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