Pull up material disposal to MeshBase.

Assets/Cryville/Crtr/Components/SectionalGameObject.cs

@@ -22,10 +22,6 @@ namespace Cryville.Crtr.Components {
 			SubmitProperty("part", new PropOp.Enum<Part>(v => part = v, v => (Part)v), 1);
 		}
 
-		protected override void OnDestroy() {
-			mesh.Destroy();
-		}
-
 		public override void Init() {
 			Reset();
 		}
@@ -103,7 +99,6 @@ namespace Cryville.Crtr.Components {
 		public SpriteInfo body = new SpriteInfo();
 		public SpriteInfo tail = new SpriteInfo();
 
-		Material[] mats;
 		List<Vector3> vertices;
 		List<float> lengths;
 		float sumLength = 0;
@@ -112,23 +107,25 @@ namespace Cryville.Crtr.Components {
 			base.Init();
 			mesh.Init(transform);
 
-			mats = mesh.Renderer.materials = new Material[] { mesh.NewMaterial, mesh.NewMaterial, mesh.NewMaterial };
-			head.Bind(mats[0]);
-			body.Bind(mats[1]);
-			tail.Bind(mats[2]);
+			mesh.Renderer.materials = materials = new Material[] {
+				MeshWrapper.NewMaterial(),
+				MeshWrapper.NewMaterial(),
+				MeshWrapper.NewMaterial(),
+			};
+			head.Bind(materials[0]);
+			body.Bind(materials[1]);
+			tail.Bind(materials[2]);
 
 			UpdateZIndex();
 		}
 
 		protected override void OnDestroy() {
-			base.OnDestroy();
-			Reset();
-			foreach (var m in mats) Material.Destroy(m);
 			if (_shape != null) _shapePool.Return(_shape);
 			if (vertices != null) {
 				_ptPool.Return(vertices);
 				_lPool.Return(lengths);
 			}
+			base.OnDestroy();
 		}
 
 		protected override void AppendPointInternal(Vector3 p, Quaternion r) {