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);
                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];
                    }
                }

                handle = new ObiHeightFieldHandle(source, headers.count);
                handles.Add(source, handle);
                headers.Add(new HeightFieldHeader(samples.count, buffer.Length));

                samples.AddRange(buffer);
            }

            return(handle);
        }
示例#2
0
        public override bool 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.phase                 = source.Phase;
            shape.flags                 = terrain.isTrigger ? 1 : 0;
            shape.rigidbodyIndex        = source.Rigidbody != null ? source.Rigidbody.handle.index : -1;
            shape.materialIndex         = source.CollisionMaterial != null ? source.CollisionMaterial.handle.index : -1;
            shape.contactOffset         = terrain.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.FromTransform(terrain.transform);
            world.colliderTransforms[index] = trfm;

            return(true);
        }
        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 DestroyHeightField(ObiHeightFieldHandle hfHandle)
 {
     heightFieldContainer.DestroyHeightField(hfHandle);
 }