[1963] | 1 | /* |
---|
| 2 | Bullet Continuous Collision Detection and Physics Library |
---|
| 3 | Copyright (c) 2003-2006 Erwin Coumans http://continuousphysics.com/Bullet/ |
---|
| 4 | |
---|
| 5 | This software is provided 'as-is', without any express or implied warranty. |
---|
| 6 | In no event will the authors be held liable for any damages arising from the use of this software. |
---|
| 7 | Permission is granted to anyone to use this software for any purpose, |
---|
| 8 | including commercial applications, and to alter it and redistribute it freely, |
---|
| 9 | subject to the following restrictions: |
---|
| 10 | |
---|
| 11 | 1. 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. |
---|
| 12 | 2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. |
---|
| 13 | 3. 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 | |
---|
| 24 | ATTRIBUTE_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 | |
---|
| 42 | typedef 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. |
---|
| 50 | ATTRIBUTE_ALIGNED16(class) btTriangleIndexVertexMaterialArray : public btTriangleIndexVertexArray |
---|
| 51 | { |
---|
| 52 | protected: |
---|
| 53 | MaterialArray m_materials; |
---|
| 54 | |
---|
| 55 | public: |
---|
| 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 |
---|