[1985] | 1 | /*************************************************************************** |
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| 2 | |
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| 3 | This source file is part of OGREBULLET |
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| 4 | (Object-oriented Graphics Rendering Engine Bullet Wrapper) |
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| 5 | For the latest info, see http://www.ogre3d.org/phpBB2addons/viewforum.php?f=10 |
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| 6 | |
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| 7 | Copyright (c) 2007 tuan.kuranes@gmail.com (Use it Freely, even Statically, but have to contribute any changes) |
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| 8 | |
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| 9 | |
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| 10 | |
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| 11 | This program is free software; you can redistribute it and/or modify it under |
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| 12 | the terms of the GPL General Public License with runtime exception as published by the Free Software |
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| 13 | Foundation; either version 2 of the License, or (at your option) any later |
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| 14 | version. |
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| 15 | |
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| 16 | This program is distributed in the hope that it will be useful, but WITHOUT |
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| 17 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS |
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| 18 | FOR A PARTICULAR PURPOSE. See the GPL General Public License with runtime exception for more details. |
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| 19 | |
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| 20 | You should have received a copy of the GPL General Public License with runtime exception along with |
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| 21 | this program; if not, write to the Free Software Foundation, Inc., 59 Temple |
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| 22 | Place - Suite 330, Boston, MA 02111-1307, USA, or go to |
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| 23 | http://www.gnu.org/licenses/old-licenses/gpl-2.0.html |
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| 24 | ----------------------------------------------------------------------------- |
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| 25 | */ |
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| 26 | |
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| 27 | #include "OgreBulletCollisions.h" |
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| 28 | |
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| 29 | #include "Shapes/OgreBulletCollisionsTrimeshShape.h" |
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| 30 | #include "Debug/OgreBulletCollisionsDebugLines.h" |
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| 31 | #include "Utils/OgreBulletConverter.h" |
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| 32 | |
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| 33 | using namespace Ogre; |
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| 34 | using namespace OgreBulletCollisions; |
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| 35 | |
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| 36 | namespace OgreBulletCollisions |
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| 37 | { |
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| 38 | // ------------------------------------------------------------------------- |
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| 39 | TriangleMeshCollisionShape::TriangleMeshCollisionShape( |
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| 40 | Vector3 *vertices, |
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| 41 | unsigned int vertexCount, |
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| 42 | unsigned int *indices, |
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| 43 | unsigned int indexCount, |
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| 44 | bool use32bitsIndices) : |
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| 45 | CollisionShape(), |
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| 46 | mTriMesh(0) |
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| 47 | { |
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| 48 | unsigned int numFaces = indexCount / 3; |
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| 49 | |
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| 50 | mTriMesh = new btTriangleMesh(use32bitsIndices); |
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| 51 | |
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| 52 | btVector3 vertexPos[3]; |
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| 53 | for (unsigned int n = 0; n < numFaces; ++n) |
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| 54 | { |
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| 55 | { |
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| 56 | const Vector3 &vec = vertices[*indices]; |
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| 57 | vertexPos[0][0] = vec.x; |
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| 58 | vertexPos[0][1] = vec.y; |
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| 59 | vertexPos[0][2] = vec.z; |
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| 60 | } |
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| 61 | { |
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| 62 | const Vector3 &vec = vertices[*(indices + 1)]; |
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| 63 | vertexPos[1][0] = vec.x; |
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| 64 | vertexPos[1][1] = vec.y; |
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| 65 | vertexPos[1][2] = vec.z; |
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| 66 | } |
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| 67 | { |
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| 68 | const Vector3 &vec = vertices[*(indices + 2)]; |
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| 69 | vertexPos[2][0] = vec.x; |
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| 70 | vertexPos[2][1] = vec.y; |
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| 71 | vertexPos[2][2] = vec.z; |
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| 72 | } |
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| 73 | |
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| 74 | indices += 3; |
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| 75 | |
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| 76 | mTriMesh->addTriangle(vertexPos[0], vertexPos[1], vertexPos[2]); |
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| 77 | } |
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| 78 | |
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| 79 | const bool useQuantizedAABB = true; |
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| 80 | mShape = new btBvhTriangleMeshShape(mTriMesh, useQuantizedAABB); |
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| 81 | |
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| 82 | } |
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| 83 | // ------------------------------------------------------------------------- |
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| 84 | TriangleMeshCollisionShape::~TriangleMeshCollisionShape() |
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| 85 | { |
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| 86 | } |
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| 87 | // ------------------------------------------------------------------------- |
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| 88 | bool TriangleMeshCollisionShape::drawWireFrame(DebugLines *wire, |
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| 89 | const Ogre::Vector3 &pos, |
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| 90 | const Ogre::Quaternion &quat) const |
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| 91 | { |
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| 92 | const int numTris = mTriMesh->getNumTriangles (); |
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| 93 | if (numTris > 0) |
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| 94 | { |
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| 95 | |
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| 96 | const int numSubParts = mTriMesh->getNumSubParts (); |
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| 97 | for (int currSubPart = 0; currSubPart < numSubParts; currSubPart++) |
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| 98 | { |
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| 99 | const unsigned char* vertexBase = NULL; |
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| 100 | int numVerts; |
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| 101 | PHY_ScalarType vertexType; |
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| 102 | int vertexStride; |
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| 103 | const unsigned char* indexBase = NULL; |
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| 104 | int indexStride; |
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| 105 | int numFaces; |
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| 106 | PHY_ScalarType indexType; |
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| 107 | |
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| 108 | mTriMesh->getLockedReadOnlyVertexIndexBase (&vertexBase, numVerts, |
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| 109 | vertexType, vertexStride, |
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| 110 | &indexBase, indexStride, numFaces, indexType, currSubPart); |
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| 111 | |
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| 112 | float* p; |
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| 113 | btVector3 vert0; |
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| 114 | btVector3 vert1; |
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| 115 | btVector3 vert2; |
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| 116 | for (int t = 0; t < numFaces; t++) |
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| 117 | { |
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| 118 | #define setVector(A, B) {A.setX(B[0]);A.setY(B[1]);A.setZ(B[2]);}; |
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| 119 | |
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| 120 | if (indexType == PHY_SHORT) |
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| 121 | { |
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| 122 | short int* index = (short int*)(indexBase + t*indexStride); |
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| 123 | |
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| 124 | p = (float*)(vertexBase + index[0]*vertexStride); |
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| 125 | setVector(vert0, p); |
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| 126 | p = (float*)(vertexBase + index[1]*vertexStride); |
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| 127 | setVector(vert1, p); |
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| 128 | p = (float*)(vertexBase + index[2]*vertexStride); |
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| 129 | setVector(vert2, p); |
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| 130 | } |
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| 131 | else |
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| 132 | { |
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| 133 | int* index = (int*)(indexBase + t*indexStride); |
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| 134 | |
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| 135 | p = (float*)(vertexBase + index[0]*vertexStride); |
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| 136 | setVector(vert0, p); |
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| 137 | p = (float*)(vertexBase + index[1]*vertexStride); |
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| 138 | setVector(vert1, p); |
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| 139 | p = (float*)(vertexBase + index[2]*vertexStride); |
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| 140 | setVector(vert2, p); |
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| 141 | } |
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| 142 | #undef setVector |
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| 143 | |
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| 144 | wire->addLine (BtOgreConverter::to(vert0), BtOgreConverter::to(vert1)); |
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| 145 | wire->addLine (BtOgreConverter::to(vert1), BtOgreConverter::to(vert2)); |
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| 146 | wire->addLine (BtOgreConverter::to(vert2), BtOgreConverter::to(vert0)); |
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| 147 | } |
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| 148 | } |
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| 149 | return true; |
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| 150 | } |
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| 151 | return false; |
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| 152 | } |
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| 153 | } |
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| 154 | |
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