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source: code/branches/physics/src/bullet/BulletCollision/CollisionShapes/btTriangleIndexVertexArray.cpp @ 1963

Last change on this file since 1963 was 1963, checked in by rgrieder, 15 years ago

Added Bullet physics engine.

  • Property svn:eol-style set to native
File size: 3.4 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#include "btTriangleIndexVertexArray.h"
17
18btTriangleIndexVertexArray::btTriangleIndexVertexArray(int numTriangles,int* triangleIndexBase,int triangleIndexStride,int numVertices,btScalar* vertexBase,int vertexStride)
19: m_hasAabb(0)
20{
21        btIndexedMesh mesh;
22
23        mesh.m_numTriangles = numTriangles;
24        mesh.m_triangleIndexBase = (const unsigned char *)triangleIndexBase;
25        mesh.m_triangleIndexStride = triangleIndexStride;
26        mesh.m_numVertices = numVertices;
27        mesh.m_vertexBase = (const unsigned char *)vertexBase;
28        mesh.m_vertexStride = vertexStride;
29
30        addIndexedMesh(mesh);
31
32}
33
34btTriangleIndexVertexArray::~btTriangleIndexVertexArray()
35{
36
37}
38
39void    btTriangleIndexVertexArray::getLockedVertexIndexBase(unsigned char **vertexbase, int& numverts,PHY_ScalarType& type, int& vertexStride,unsigned char **indexbase,int & indexstride,int& numfaces,PHY_ScalarType& indicestype,int subpart)
40{
41        btAssert(subpart< getNumSubParts() );
42
43        btIndexedMesh& mesh = m_indexedMeshes[subpart];
44
45        numverts = mesh.m_numVertices;
46        (*vertexbase) = (unsigned char *) mesh.m_vertexBase;
47        #ifdef BT_USE_DOUBLE_PRECISION
48        type = PHY_DOUBLE;
49        #else
50        type = PHY_FLOAT;
51        #endif
52        vertexStride = mesh.m_vertexStride;
53
54        numfaces = mesh.m_numTriangles;
55
56        (*indexbase) = (unsigned char *)mesh.m_triangleIndexBase;
57        indexstride = mesh.m_triangleIndexStride;
58        indicestype = mesh.m_indexType;
59}
60
61void    btTriangleIndexVertexArray::getLockedReadOnlyVertexIndexBase(const unsigned char **vertexbase, int& numverts,PHY_ScalarType& type, int& vertexStride,const unsigned char **indexbase,int & indexstride,int& numfaces,PHY_ScalarType& indicestype,int subpart) const
62{
63        const btIndexedMesh& mesh = m_indexedMeshes[subpart];
64
65        numverts = mesh.m_numVertices;
66        (*vertexbase) = (const unsigned char *)mesh.m_vertexBase;
67        #ifdef BT_USE_DOUBLE_PRECISION
68        type = PHY_DOUBLE;
69        #else
70        type = PHY_FLOAT;
71        #endif
72        vertexStride = mesh.m_vertexStride;
73
74        numfaces = mesh.m_numTriangles;
75        (*indexbase) = (const unsigned char *)mesh.m_triangleIndexBase;
76        indexstride = mesh.m_triangleIndexStride;
77        indicestype = mesh.m_indexType;
78}
79
80bool    btTriangleIndexVertexArray::hasPremadeAabb() const
81{
82        return (m_hasAabb == 1);
83}
84
85void    btTriangleIndexVertexArray::setPremadeAabb(const btVector3& aabbMin, const btVector3& aabbMax )
86{
87        m_aabbMin = aabbMin;
88        m_aabbMax = aabbMax;
89        m_hasAabb = 1; // this is intentionally an int see notes in header
90}
91
92void    btTriangleIndexVertexArray::getPremadeAabb(btVector3* aabbMin, btVector3* aabbMax ) const
93{
94        *aabbMin = m_aabbMin;
95        *aabbMax = m_aabbMax;
96}
97
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