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source: code/trunk/src/bullet/BulletCollision/CollisionShapes/btTriangleIndexVertexMaterialArray.h @ 5703

Last change on this file since 5703 was 2662, checked in by rgrieder, 16 years ago

Merged presentation branch back to trunk.

  • Property svn:eol-style set to native
File size: 3.9 KB
Line 
1/*
2Bullet Continuous Collision Detection and Physics Library
3Copyright (c) 2003-2006 Erwin Coumans  http://continuousphysics.com/Bullet/
4
5This software is provided 'as-is', without any express or implied warranty.
6In no event will the authors be held liable for any damages arising from the use of this software.
7Permission is granted to anyone to use this software for any purpose,
8including commercial applications, and to alter it and redistribute it freely,
9subject to the following restrictions:
10
111. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
122. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
133. This notice may not be removed or altered from any source distribution.
14*/
15
16///This file was created by Alex Silverman
17
18#ifndef BT_MULTIMATERIAL_TRIANGLE_INDEX_VERTEX_ARRAY_H
19#define BT_MULTIMATERIAL_TRIANGLE_INDEX_VERTEX_ARRAY_H
20
21#include "btTriangleIndexVertexArray.h"
22
23
24ATTRIBUTE_ALIGNED16( struct)    btMaterialProperties
25{
26    ///m_materialBase ==========> 2 btScalar values make up one material, friction then restitution
27    int m_numMaterials;
28    const unsigned char * m_materialBase;
29    int m_materialStride;
30    PHY_ScalarType m_materialType;
31    ///m_numTriangles <=========== This exists in the btIndexedMesh object for the same subpart, but since we're
32    ///                           padding the structure, it can be reproduced at no real cost
33    ///m_triangleMaterials =====> 1 integer value makes up one entry
34    ///                           eg: m_triangleMaterials[1] = 5; // This will set triangle 2 to use material 5
35    int m_numTriangles; 
36    const unsigned char * m_triangleMaterialsBase;
37    int m_triangleMaterialStride;
38    ///m_triangleType <========== Automatically set in addMaterialProperties
39    PHY_ScalarType m_triangleType;
40};
41
42typedef btAlignedObjectArray<btMaterialProperties>      MaterialArray;
43
44///Teh btTriangleIndexVertexMaterialArray is built on TriangleIndexVertexArray
45///The addition of a material array allows for the utilization of the partID and
46///triangleIndex that are returned in the ContactAddedCallback.  As with
47///TriangleIndexVertexArray, no duplicate is made of the material data, so it
48///is the users responsibility to maintain the array during the lifetime of the
49///TriangleIndexVertexMaterialArray.
50ATTRIBUTE_ALIGNED16(class) btTriangleIndexVertexMaterialArray : public btTriangleIndexVertexArray
51{
52protected:
53    MaterialArray       m_materials;
54               
55public:
56        BT_DECLARE_ALIGNED_ALLOCATOR();
57
58    btTriangleIndexVertexMaterialArray()
59        {
60        }
61
62    btTriangleIndexVertexMaterialArray(int numTriangles,int* triangleIndexBase,int triangleIndexStride,
63        int numVertices,btScalar* vertexBase,int vertexStride,
64        int numMaterials, unsigned char* materialBase, int materialStride,
65        int* triangleMaterialsBase, int materialIndexStride);
66
67    virtual ~btTriangleIndexVertexMaterialArray() {}
68
69    void        addMaterialProperties(const btMaterialProperties& mat, PHY_ScalarType triangleType = PHY_INTEGER)
70    {
71        m_materials.push_back(mat);
72        m_materials[m_materials.size()-1].m_triangleType = triangleType;
73    }
74
75    virtual void getLockedMaterialBase(unsigned char **materialBase, int& numMaterials, PHY_ScalarType& materialType, int& materialStride,
76        unsigned char ** triangleMaterialBase, int& numTriangles, int& triangleMaterialStride, PHY_ScalarType& triangleType ,int subpart = 0);
77
78    virtual void getLockedReadOnlyMaterialBase(const unsigned char **materialBase, int& numMaterials, PHY_ScalarType& materialType, int& materialStride,
79        const unsigned char ** triangleMaterialBase, int& numTriangles, int& triangleMaterialStride, PHY_ScalarType& triangleType, int subpart = 0);
80
81}
82;
83
84#endif //BT_MULTIMATERIAL_TRIANGLE_INDEX_VERTEX_ARRAY_H
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