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btConvexHullShape.cpp - Hosted on DriveHQ Cloud IT Platform
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Ruta de la carpeta: \\game3dprogramming\materials\DarkPuzzle\libs\bullet_sdk\src\BulletCollision\CollisionShapes\btConvexHullShape.cpp
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/* Bullet Continuous Collision Detection and Physics Library Copyright (c) 2003-2006 Erwin Coumans http://continuousphysics.com/Bullet/ This software is provided 'as-is', without any express or implied warranty. In no event will the authors be held liable for any damages arising from the use of this software. Permission is granted to anyone to use this software for any purpose, including commercial applications, and to alter it and redistribute it freely, subject to the following restrictions: 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. 2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. 3. This notice may not be removed or altered from any source distribution. */ #include "btConvexHullShape.h" #include "BulletCollision/CollisionShapes/btCollisionMargin.h" #include "LinearMath/btQuaternion.h" btConvexHullShape ::btConvexHullShape (const btScalar* points,int numPoints,int stride) { m_points.resize(numPoints); unsigned char* pointsBaseAddress = (unsigned char*)points; for (int i=0;i
maxDot) { maxDot = newDot; supVec = vtx; } } return supVec; } void btConvexHullShape::batchedUnitVectorGetSupportingVertexWithoutMargin(const btVector3* vectors,btVector3* supportVerticesOut,int numVectors) const { btScalar newDot; //use 'w' component of supportVerticesOut? { for (int i=0;i
supportVerticesOut[j][3]) { //WARNING: don't swap next lines, the w component would get overwritten! supportVerticesOut[j] = vtx; supportVerticesOut[j][3] = newDot; } } } } btVector3 btConvexHullShape::localGetSupportingVertex(const btVector3& vec)const { btVector3 supVertex = localGetSupportingVertexWithoutMargin(vec); if ( getMargin()!=btScalar(0.) ) { btVector3 vecnorm = vec; if (vecnorm .length2() < (SIMD_EPSILON*SIMD_EPSILON)) { vecnorm.setValue(btScalar(-1.),btScalar(-1.),btScalar(-1.)); } vecnorm.normalize(); supVertex+= getMargin() * vecnorm; } return supVertex; } //currently just for debugging (drawing), perhaps future support for algebraic continuous collision detection //Please note that you can debug-draw btConvexHullShape with the Raytracer Demo int btConvexHullShape::getNumVertices() const { return m_points.size(); } int btConvexHullShape::getNumEdges() const { return m_points.size(); } void btConvexHullShape::getEdge(int i,btPoint3& pa,btPoint3& pb) const { int index0 = i%m_points.size(); int index1 = (i+1)%m_points.size(); pa = m_points[index0]*m_localScaling; pb = m_points[index1]*m_localScaling; } void btConvexHullShape::getVertex(int i,btPoint3& vtx) const { vtx = m_points[i]*m_localScaling; } int btConvexHullShape::getNumPlanes() const { return 0; } void btConvexHullShape::getPlane(btVector3& ,btPoint3& ,int ) const { btAssert(0); } //not yet bool btConvexHullShape::isInside(const btPoint3& ,btScalar ) const { assert(0); return false; }
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