去掉obi，使用自写绳索

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

@@ -1,114 +0,0 @@
-using System;
-using System.Collections.Generic;
-using UnityEngine;
-
-namespace Obi
-{
-    public class ObiHeightFieldHandle : ObiResourceHandle<TerrainData>
-    {
-        public ObiHeightFieldHandle(TerrainData data, int index = -1) : base(index) { owner = data; }
-    }
-
-    public struct HeightFieldHeader //we need to use the header in the backend, so it must be a struct.
-    {
-        public int firstSample;
-        public int sampleCount;
-
-        public HeightFieldHeader(int firstSample, int sampleCount)
-        {
-            this.firstSample = firstSample;
-            this.sampleCount = sampleCount;
-        }
-    }
-
-    public class ObiHeightFieldContainer
-    {
-        public Dictionary<TerrainData, ObiHeightFieldHandle> handles;  /**< dictionary indexed by asset, so that we don't generate data for the same distance field multiple times.*/
-
-        public ObiNativeHeightFieldHeaderList headers; /**< One header per distance field.*/
-        public ObiNativeFloatList samples;
-
-        public ObiHeightFieldContainer()
-        {
-            handles = new Dictionary<TerrainData, ObiHeightFieldHandle>();
-            headers = new ObiNativeHeightFieldHeaderList();
-            samples = new ObiNativeFloatList();
-        }
-
-        public ObiHeightFieldHandle GetOrCreateHeightField(TerrainData source)
-        {
-            ObiHeightFieldHandle handle;
-
-            if (!handles.TryGetValue(source, out handle))
-            {
-                // Get the heighfield into a 1d array:
-                int width = source.heightmapResolution;
-                int height = source.heightmapResolution;
-
-                float[,] heights = source.GetHeights(0, 0, width, height);
-                bool[,] holes = source.GetHoles(0, 0, width-1, height-1);
-
-                float[] buffer = new float[width * height];
-
-                for (int y = 0; y < height; ++y)
-                    for (int x = 0; x < width; ++x)
-                        buffer[y * width + x] = heights[y, x] * (holes[Mathf.Min(y,height - 2), Mathf.Min(x, width - 2)] ? 1:-1);
-
-                handle = new ObiHeightFieldHandle(source, headers.count);
-                handles.Add(source, handle);
-                headers.Add(new HeightFieldHeader(samples.count, buffer.Length));
-
-                samples.AddRange(buffer);
-            }
-
-            return handle;
-        }
-
-        public void DestroyHeightField(ObiHeightFieldHandle 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.firstSample > header.firstSample)
-                    {
-                        h.firstSample -= header.sampleCount;
-                        headers[i] = h;
-                    }
-                }
-
-                // update handles:
-                foreach (var pair in handles)
-                {
-                    if (pair.Value.index > handle.index)
-                        pair.Value.index--;
-                }
-
-                // Remove nodes
-                samples.RemoveRange(header.firstSample, header.sampleCount);
-
-                // remove header:
-                headers.RemoveAt(handle.index);
-
-                // remove the heightfield from the dictionary:
-                handles.Remove(handle.owner);
-
-                // Invalidate our handle:
-                handle.Invalidate();
-            }
-        }
-
-        public void Dispose()
-        {
-            if (headers != null)
-                headers.Dispose();
-            if (samples != null)
-                samples.Dispose();
-        }
-
-    }
-}