TrueSync: TSMeshCollider.cs Source File

TrueSync

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 using System.Collections.Generic;
 using System.Linq;
 using UnityEngine;
 using TrueSync.Physics3D;
 
 namespace TrueSync {
 
  [AddComponentMenu("TrueSync/Physics/MeshCollider", 0)]
  public class TSMeshCollider : TSCollider {
 
  [SerializeField]
  private Mesh mesh;
 
  public Mesh Mesh {
  get { return mesh; }
  set {
  mesh = value;
  vertices = GetVertices();
  indices = GetIndices();
 
  if (_body != null) {
  _body.Shape = CreateShape();
  }
  }
  }
 
  private List<TSVector> vertices;
 
  public List<TSVector> Vertices {
  get {
  if (vertices == null)
  vertices = GetVertices();
  return vertices;
  }
  }
 
  private List<TriangleVertexIndices> indices;
 
  public List<TriangleVertexIndices> Indices {
  get {
  if (indices == null)
  indices = GetIndices();
  return indices;
  }
  }
 
  public void Reset() {
  if (mesh == null) {
  var meshFilter = GetComponent<MeshFilter>();
  mesh = meshFilter.sharedMesh;
  }
  }
 
  public override Shape CreateShape() {
  var octree = new Octree(Vertices, Indices);
  return new TriangleMeshShape(octree);
  }
 
  private List<TriangleVertexIndices> GetIndices() {
  var triangles = mesh.triangles;
  var result = new List<TriangleVertexIndices>();
  for (int i = 0; i < triangles.Length; i += 3)
  result.Add(new TriangleVertexIndices(triangles[i + 2], triangles[i + 1], triangles[i + 0]));
  return result;
  }
 
  private List<TSVector> GetVertices() {
  var result = mesh.vertices.Select(p => new TSVector(p.x * lossyScale.x, p.y * lossyScale.y, p.z * lossyScale.z)).ToList();
  return result;
  }
 
  protected override Vector3 GetGizmosSize() {
  return lossyScale.ToVector();
  }
 
  protected override void DrawGizmos() {
  Gizmos.DrawWireMesh(mesh);
  }
 
  }
 
 }
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