去掉obi，使用自写绳索

Assets/Obi/Scripts/Common/Collisions/ColliderTrackers/Trackers3D/ObiTerrainShapeTracker.cs

@@ -1,75 +0,0 @@
-using System;
-using UnityEngine;
-using System.Runtime.InteropServices;
-
-namespace Obi{
-
-	public class ObiTerrainShapeTracker : ObiShapeTracker
-	{
-        ObiHeightFieldHandle handle;
-
-        public ObiTerrainShapeTracker(ObiCollider source, TerrainCollider collider){
-
-            this.source = source;
-			this.collider = collider;
-		}		
-
-		public void UpdateHeightData()
-        {
-            ObiColliderWorld.GetInstance().DestroyHeightField(handle);
-        }
-	
-		public override void UpdateIfNeeded ()
-        {
-
-            TerrainCollider terrain = collider as TerrainCollider;
-
-            // retrieve collision world and index:
-            var world = ObiColliderWorld.GetInstance();
-            int index = source.Handle.index;
-
-            int resolution = terrain.terrainData.heightmapResolution;
-
-            // get or create the heightfield:
-            if (handle == null || !handle.isValid)
-            {
-                handle = world.GetOrCreateHeightField(terrain.terrainData);
-                handle.Reference();
-            }
-
-            // update collider:
-            var shape = world.colliderShapes[index];
-            shape.type = ColliderShape.ShapeType.Heightmap;
-            shape.filter = source.Filter;
-            shape.SetSign(source.Inverted);
-            shape.isTrigger = terrain.isTrigger;
-            shape.rigidbodyIndex = source.Rigidbody != null ? source.Rigidbody.Handle.index : -1;
-            shape.materialIndex = source.CollisionMaterial != null ? source.CollisionMaterial.handle.index : -1;
-            shape.forceZoneIndex = source.ForceZone != null ? source.ForceZone.Handle.index : -1;
-            shape.contactOffset = source.Thickness;
-            shape.dataIndex = handle.index;
-            shape.size = terrain.terrainData.size;
-            shape.center = new Vector4(resolution, resolution, resolution, resolution);
-            world.colliderShapes[index] = shape;
-
-            // update bounds:
-            var aabb = world.colliderAabbs[index];
-            aabb.FromBounds(terrain.bounds, shape.contactOffset);
-            world.colliderAabbs[index] = aabb;
-
-            // update transform:
-            var trfm = world.colliderTransforms[index];
-            trfm.FromTransform3D(terrain.transform, source.Rigidbody as ObiRigidbody);
-            world.colliderTransforms[index] = trfm;
-        }
-
-		public override void Destroy()
-        {
-			base.Destroy();
-
-            if (handle != null && handle.Dereference())
-                ObiColliderWorld.GetInstance().DestroyHeightField(handle);
-        }
-	}
-}
-