diff options
Diffstat (limited to 'libraries/ModifiedBulletX/ModifiedBulletX/Collision/CollisionShapes/BvhTriangleMeshShape.cs')
-rw-r--r-- | libraries/ModifiedBulletX/ModifiedBulletX/Collision/CollisionShapes/BvhTriangleMeshShape.cs | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/libraries/ModifiedBulletX/ModifiedBulletX/Collision/CollisionShapes/BvhTriangleMeshShape.cs b/libraries/ModifiedBulletX/ModifiedBulletX/Collision/CollisionShapes/BvhTriangleMeshShape.cs new file mode 100644 index 0000000..00247a0 --- /dev/null +++ b/libraries/ModifiedBulletX/ModifiedBulletX/Collision/CollisionShapes/BvhTriangleMeshShape.cs | |||
@@ -0,0 +1,83 @@ | |||
1 | /* | ||
2 | Bullet for XNA Copyright (c) 2003-2007 Vsevolod Klementjev http://www.codeplex.com/xnadevru | ||
3 | Bullet original C++ version Copyright (c) 2003-2007 Erwin Coumans http://bulletphysics.com | ||
4 | |||
5 | This software is provided 'as-is', without any express or implied | ||
6 | warranty. In no event will the authors be held liable for any damages | ||
7 | arising from the use of this software. | ||
8 | |||
9 | Permission is granted to anyone to use this software for any purpose, | ||
10 | including commercial applications, and to alter it and redistribute it | ||
11 | freely, subject to the following restrictions: | ||
12 | |||
13 | 1. The origin of this software must not be misrepresented; you must not | ||
14 | claim that you wrote the original software. If you use this software | ||
15 | in a product, an acknowledgment in the product documentation would be | ||
16 | appreciated but is not required. | ||
17 | 2. Altered source versions must be plainly marked as such, and must not be | ||
18 | misrepresented as being the original software. | ||
19 | 3. This notice may not be removed or altered from any source distribution. | ||
20 | */ | ||
21 | |||
22 | using System; | ||
23 | using System.Collections.Generic; | ||
24 | using System.Text; | ||
25 | using MonoXnaCompactMaths; | ||
26 | |||
27 | namespace XnaDevRu.BulletX | ||
28 | { | ||
29 | class MyNodeOverlapCallback : INodeOverlapCallback | ||
30 | { | ||
31 | StridingMeshInterface _meshInterface; | ||
32 | ITriangleCallback _callback; | ||
33 | Vector3[] _triangle = new Vector3[3]; | ||
34 | |||
35 | public MyNodeOverlapCallback(ITriangleCallback callback, StridingMeshInterface meshInterface) | ||
36 | { | ||
37 | _meshInterface = meshInterface; | ||
38 | _callback = callback; | ||
39 | } | ||
40 | |||
41 | public void ProcessNode(OptimizedBvhNode node) | ||
42 | { | ||
43 | List<Vector3> verts; | ||
44 | List<int> indicies; | ||
45 | int numtriangles; | ||
46 | |||
47 | _meshInterface.GetLockedReadOnlyVertexIndexBase(out verts, out indicies, out numtriangles, node.SubPart); | ||
48 | Vector3 meshScaling = _meshInterface.Scaling; | ||
49 | |||
50 | for (int j = 0; j < 3; j++) | ||
51 | { | ||
52 | _triangle[j] = verts[indicies[j + node.TriangleIndex * 3]] * meshScaling; | ||
53 | } | ||
54 | |||
55 | _callback.ProcessTriangle(_triangle, node.SubPart, node.TriangleIndex); | ||
56 | _meshInterface.UnLockReadOnlyVertexBase(node.SubPart); | ||
57 | } | ||
58 | } | ||
59 | |||
60 | public class BvhTriangleMeshShape : TriangleMeshShape | ||
61 | { | ||
62 | OptimizedBvh _bvh = new OptimizedBvh(); | ||
63 | |||
64 | public BvhTriangleMeshShape(StridingMeshInterface meshInterface) : base(meshInterface) | ||
65 | { | ||
66 | _bvh.Build(meshInterface); | ||
67 | } | ||
68 | |||
69 | public override void ProcessAllTriangles(ITriangleCallback callback, Vector3 aabbMin, Vector3 aabbMax) | ||
70 | { | ||
71 | MyNodeOverlapCallback myNodeCallback = new MyNodeOverlapCallback(callback, MeshInterface); | ||
72 | _bvh.ReportAabbOverlappingNodex(myNodeCallback, aabbMin, aabbMax); | ||
73 | } | ||
74 | |||
75 | public override string Name | ||
76 | { | ||
77 | get | ||
78 | { | ||
79 | return "BvhTriangleMesh"; | ||
80 | } | ||
81 | } | ||
82 | } | ||
83 | } | ||