Created
September 20, 2024 01:39
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Animation Rigging Distance Constraint
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| public class DistanceConstraint : RigConstraint<DistanceConstraint.Job, DistanceConstraint.Data, DistanceConstraint.Binder> | |
| { | |
| public struct Job : IWeightedAnimationJob | |
| { | |
| public FloatProperty jobWeight { get; set; } | |
| public ReadOnlyTransformHandle source; | |
| public ReadWriteTransformHandle target; | |
| public Vector3 initialTargetLocalPos; | |
| public float distance; | |
| public void ProcessRootMotion(AnimationStream stream){} | |
| public void ProcessAnimation(AnimationStream stream) | |
| { | |
| var totalWeight = jobWeight.Get(stream); | |
| if (totalWeight <= 0f) | |
| return; | |
| target.SetLocalPosition(stream, initialTargetLocalPos); | |
| var sourcePos = source.GetPosition(stream); | |
| var targetPos = target.GetPosition(stream); | |
| var currentOffset = targetPos - sourcePos; | |
| var currentDirection = currentOffset.normalized; | |
| var newTargetPos = sourcePos + currentDirection * distance; | |
| target.SetPosition(stream, newTargetPos); | |
| } | |
| } | |
| [System.Serializable] | |
| public struct Data : IAnimationJobData | |
| { | |
| [SyncSceneToStream] | |
| public Transform source; | |
| [SyncSceneToStream] | |
| public Transform target; | |
| public bool IsValid() => true; | |
| public void SetDefaultValues() | |
| { | |
| } | |
| } | |
| public class Binder : AnimationJobBinder<Job, Data> | |
| { | |
| public override Job Create(Animator animator, ref Data data, Component component) | |
| { | |
| var job = new Job | |
| { | |
| source = ReadOnlyTransformHandle.Bind(animator, data.source), | |
| target = ReadWriteTransformHandle.Bind(animator, data.target), | |
| distance = Vector3.Distance(data.target.position, data.source.position), | |
| initialTargetLocalPos = data.target.localPosition, | |
| }; | |
| return job; | |
| } | |
| public override void Destroy(Job job) | |
| { | |
| } | |
| } | |
| } |
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