mirror of
https://github.com/Facepunch/sbox-public.git
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71f266059a
This commit imports the C# engine code and game files, excluding C++ source code. [Source-Commit: ceb3d758046e50faa6258bc3b658a30c97743268]
137 lines
3.5 KiB
C#
137 lines
3.5 KiB
C#
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namespace Sandbox;
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partial class ModelPhysics
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{
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/// <summary>
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/// Represents a <see cref="Rigidbody"/> attached to a specific bone with a local transform.
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/// </summary>
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public readonly record struct Body( Rigidbody Component, int Bone, Transform LocalTransform );
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/// <summary>
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/// Represents a <see cref="Sandbox.Joint"/> between two bodies with local frames for each.
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/// </summary>
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public readonly record struct Joint( Sandbox.Joint Component, Body Body1, Body Body2, Transform LocalFrame1, Transform LocalFrame2 );
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/// <summary>
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/// Networked list of bodies.
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/// </summary>
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[Sync, Property, Hide] public List<Body> Bodies { get; set; } = [];
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/// <summary>
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/// Networked list of joints.
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/// </summary>
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[Sync, Property, Hide] public List<Joint> Joints { get; set; } = [];
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/// <summary>
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/// Networked <see cref="Rigidbody"/> transforms.
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/// </summary>
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[Sync] private NetworkTransforms BodyTransforms { get; set; } = new();
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/// <summary>
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/// Sync visual transforms to physics transforms.
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/// </summary>
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void UpdateProxyTransforms()
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{
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if ( !Renderer.IsValid() )
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return;
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var so = Renderer.SceneModel;
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if ( !so.IsValid() )
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return;
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Renderer.ClearPhysicsBones();
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var world = WorldTransform;
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foreach ( var (component, boneIndex, _) in Bodies )
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{
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if ( !component.IsValid() )
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continue;
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var body = component.PhysicsBody;
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if ( !body.IsValid() )
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continue;
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// Set transform to lerped physics transform.
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var bodyTransform = body.GetLerpedTransform( Time.Now ).WithScale( component.WorldScale );
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component.WorldTransform = bodyTransform;
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// Bone overrides are in modelspace, strip off our world transform from body world transform.
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var boneTransform = world.ToLocal( bodyTransform );
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so.SetBoneOverride( boneIndex, boneTransform );
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}
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}
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/// <summary>
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/// Send body transforms.
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/// </summary>
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void SetBodyTransforms()
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{
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for ( var i = 0; i < Bodies.Count; i++ )
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{
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var component = Bodies[i].Component;
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if ( !component.IsValid() )
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continue;
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// If someone enabled networking on this body gameobject then it doesn't need to be sent.
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if ( component.GameObject.NetworkMode == NetworkMode.Object )
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continue;
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var body = component.PhysicsBody;
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if ( !body.IsValid() )
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continue;
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// Physics has gone to sleep, so it's not moving.
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if ( body.Sleeping )
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continue;
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// Mark transform as changed so it gets networked over.
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BodyTransforms.Set( i, body.Transform.WithScale( component.WorldScale ) );
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}
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}
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/// <summary>
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/// Move proxy bodies to networked body transforms.
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/// </summary>
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void MoveProxyBodies()
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{
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var transforms = BodyTransforms.Entries;
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foreach ( var (bodyIndex, transform) in transforms )
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{
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var component = Bodies[bodyIndex].Component;
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if ( !component.IsValid() )
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continue;
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component.WorldScale = transform.Scale;
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var body = component.PhysicsBody;
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if ( !body.IsValid() )
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continue;
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// Take a bit longer to reach target to smooth it out a bit.
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body.Move( transform, Time.Delta * 2.0f );
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}
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}
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protected override void OnRefresh()
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{
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if ( !IsProxy )
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return;
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var transforms = BodyTransforms.Entries;
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foreach ( var (bodyIndex, transform) in transforms )
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{
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var component = Bodies[bodyIndex].Component;
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if ( !component.IsValid() )
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continue;
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// Set transform to initial networked transform so physics get created there.
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component.GameObject.Flags = GameObjectFlags.Absolute;
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component.WorldTransform = transform;
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}
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}
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}
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