去掉obi，使用自写绳索

Assets/Obi/Scripts/Common/Collisions/ObiDistanceFieldContainer.cs

@@ -1,103 +0,0 @@
-using System;
-using System.Collections.Generic;
-using UnityEngine;
-
-namespace Obi
-{
-
-    public class ObiDistanceFieldHandle : ObiResourceHandle<ObiDistanceField>
-    {
-        public ObiDistanceFieldHandle(ObiDistanceField field, int index = -1) : base(index) { owner = field; }
-    }
-
-    public struct DistanceFieldHeader //we need to use the header in the backend, so it must be a struct.
-    {
-        public int firstNode;
-        public int nodeCount;
-  
-        public DistanceFieldHeader(int firstNode, int nodeCount)
-        {
-            this.firstNode = firstNode;
-            this.nodeCount = nodeCount;
-        }
-    }
-
-    public class ObiDistanceFieldContainer
-    {
-        public Dictionary<ObiDistanceField, ObiDistanceFieldHandle> handles;  /**< dictionary indexed by asset, so that we don't generate data for the same distance field multiple times.*/
-
-        public ObiNativeDistanceFieldHeaderList headers; /**< One header per distance field.*/
-        public ObiNativeDFNodeList dfNodes;
-
-        public ObiDistanceFieldContainer()
-        {
-            handles = new Dictionary<ObiDistanceField, ObiDistanceFieldHandle>();
-            headers = new ObiNativeDistanceFieldHeaderList();
-            dfNodes = new ObiNativeDFNodeList();
-        }
-
-        public ObiDistanceFieldHandle GetOrCreateDistanceField(ObiDistanceField source)
-        {
-            ObiDistanceFieldHandle handle;
-
-            if (!handles.TryGetValue(source, out handle))
-            {
-
-                handle = new ObiDistanceFieldHandle(source, headers.count);
-                handles.Add(source, handle);
-                headers.Add(new DistanceFieldHeader(dfNodes.count, source.nodes.Count));
-
-                dfNodes.AddRange(source.nodes);
-            }
-
-            return handle;
-        }
-
-        public void DestroyDistanceField(ObiDistanceFieldHandle handle)
-        {
-            if (handle != null && handle.isValid && handle.index < handles.Count)
-            {
-                var header = headers[handle.index];
-
-                // Update headers:
-                for (int i = 0; i < headers.count; ++i)
-                {
-                    var h = headers[i];
-                    if (h.firstNode > header.firstNode)
-                    {
-                        h.firstNode -= header.nodeCount;
-                        headers[i] = h;
-                    }
-                }
-
-                // update handles:
-                foreach (var pair in handles)
-                {
-                    if (pair.Value.index > handle.index)
-                        pair.Value.index--;
-                }
-
-                // Remove nodes
-                dfNodes.RemoveRange(header.firstNode, header.nodeCount);
-
-                // remove header:
-                headers.RemoveAt(handle.index);
-
-                // remove the mesh from the dictionary:
-                handles.Remove(handle.owner);
-
-                // Invalidate our handle:
-                handle.Invalidate();
-            }
-        }
-
-        public void Dispose()
-        {
-            if (headers != null)
-                headers.Dispose();
-            if (dfNodes != null)
-                dfNodes.Dispose();
-        }
-
-    }
-}