diff options
Diffstat (limited to 'extern/bullet2/BulletCollision/CollisionShapes/btShapeHull.cpp')
| -rw-r--r-- | extern/bullet2/BulletCollision/CollisionShapes/btShapeHull.cpp | 170 |
1 files changed, 0 insertions, 170 deletions
diff --git a/extern/bullet2/BulletCollision/CollisionShapes/btShapeHull.cpp b/extern/bullet2/BulletCollision/CollisionShapes/btShapeHull.cpp deleted file mode 100644 index 3beaf865801..00000000000 --- a/extern/bullet2/BulletCollision/CollisionShapes/btShapeHull.cpp +++ /dev/null @@ -1,170 +0,0 @@ -/* -Bullet Continuous Collision Detection and Physics Library -Copyright (c) 2003-2009 Erwin Coumans http://bulletphysics.org - -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. -*/ - -//btShapeHull was implemented by John McCutchan. - - -#include "btShapeHull.h" -#include "LinearMath/btConvexHull.h" - -#define NUM_UNITSPHERE_POINTS 42 - -btShapeHull::btShapeHull (const btConvexShape* shape) -{ - m_shape = shape; - m_vertices.clear (); - m_indices.clear(); - m_numIndices = 0; -} - -btShapeHull::~btShapeHull () -{ - m_indices.clear(); - m_vertices.clear (); -} - -bool -btShapeHull::buildHull (btScalar /*margin*/) -{ - int numSampleDirections = NUM_UNITSPHERE_POINTS; - { - int numPDA = m_shape->getNumPreferredPenetrationDirections(); - if (numPDA) - { - for (int i=0;i<numPDA;i++) - { - btVector3 norm; - m_shape->getPreferredPenetrationDirection(i,norm); - getUnitSpherePoints()[numSampleDirections] = norm; - numSampleDirections++; - } - } - } - - btVector3 supportPoints[NUM_UNITSPHERE_POINTS+MAX_PREFERRED_PENETRATION_DIRECTIONS*2]; - int i; - for (i = 0; i < numSampleDirections; i++) - { - supportPoints[i] = m_shape->localGetSupportingVertex(getUnitSpherePoints()[i]); - } - - HullDesc hd; - hd.mFlags = QF_TRIANGLES; - hd.mVcount = static_cast<unsigned int>(numSampleDirections); - -#ifdef BT_USE_DOUBLE_PRECISION - hd.mVertices = &supportPoints[0]; - hd.mVertexStride = sizeof(btVector3); -#else - hd.mVertices = &supportPoints[0]; - hd.mVertexStride = sizeof (btVector3); -#endif - - HullLibrary hl; - HullResult hr; - if (hl.CreateConvexHull (hd, hr) == QE_FAIL) - { - return false; - } - - m_vertices.resize (static_cast<int>(hr.mNumOutputVertices)); - - - for (i = 0; i < static_cast<int>(hr.mNumOutputVertices); i++) - { - m_vertices[i] = hr.m_OutputVertices[i]; - } - m_numIndices = hr.mNumIndices; - m_indices.resize(static_cast<int>(m_numIndices)); - for (i = 0; i < static_cast<int>(m_numIndices); i++) - { - m_indices[i] = hr.m_Indices[i]; - } - - // free temporary hull result that we just copied - hl.ReleaseResult (hr); - - return true; -} - -int -btShapeHull::numTriangles () const -{ - return static_cast<int>(m_numIndices / 3); -} - -int -btShapeHull::numVertices () const -{ - return m_vertices.size (); -} - -int -btShapeHull::numIndices () const -{ - return static_cast<int>(m_numIndices); -} - - -btVector3* btShapeHull::getUnitSpherePoints() -{ - static btVector3 sUnitSpherePoints[NUM_UNITSPHERE_POINTS+MAX_PREFERRED_PENETRATION_DIRECTIONS*2] = - { - btVector3(btScalar(0.000000) , btScalar(-0.000000),btScalar(-1.000000)), - btVector3(btScalar(0.723608) , btScalar(-0.525725),btScalar(-0.447219)), - btVector3(btScalar(-0.276388) , btScalar(-0.850649),btScalar(-0.447219)), - btVector3(btScalar(-0.894426) , btScalar(-0.000000),btScalar(-0.447216)), - btVector3(btScalar(-0.276388) , btScalar(0.850649),btScalar(-0.447220)), - btVector3(btScalar(0.723608) , btScalar(0.525725),btScalar(-0.447219)), - btVector3(btScalar(0.276388) , btScalar(-0.850649),btScalar(0.447220)), - btVector3(btScalar(-0.723608) , btScalar(-0.525725),btScalar(0.447219)), - btVector3(btScalar(-0.723608) , btScalar(0.525725),btScalar(0.447219)), - btVector3(btScalar(0.276388) , btScalar(0.850649),btScalar(0.447219)), - btVector3(btScalar(0.894426) , btScalar(0.000000),btScalar(0.447216)), - btVector3(btScalar(-0.000000) , btScalar(0.000000),btScalar(1.000000)), - btVector3(btScalar(0.425323) , btScalar(-0.309011),btScalar(-0.850654)), - btVector3(btScalar(-0.162456) , btScalar(-0.499995),btScalar(-0.850654)), - btVector3(btScalar(0.262869) , btScalar(-0.809012),btScalar(-0.525738)), - btVector3(btScalar(0.425323) , btScalar(0.309011),btScalar(-0.850654)), - btVector3(btScalar(0.850648) , btScalar(-0.000000),btScalar(-0.525736)), - btVector3(btScalar(-0.525730) , btScalar(-0.000000),btScalar(-0.850652)), - btVector3(btScalar(-0.688190) , btScalar(-0.499997),btScalar(-0.525736)), - btVector3(btScalar(-0.162456) , btScalar(0.499995),btScalar(-0.850654)), - btVector3(btScalar(-0.688190) , btScalar(0.499997),btScalar(-0.525736)), - btVector3(btScalar(0.262869) , btScalar(0.809012),btScalar(-0.525738)), - btVector3(btScalar(0.951058) , btScalar(0.309013),btScalar(0.000000)), - btVector3(btScalar(0.951058) , btScalar(-0.309013),btScalar(0.000000)), - btVector3(btScalar(0.587786) , btScalar(-0.809017),btScalar(0.000000)), - btVector3(btScalar(0.000000) , btScalar(-1.000000),btScalar(0.000000)), - btVector3(btScalar(-0.587786) , btScalar(-0.809017),btScalar(0.000000)), - btVector3(btScalar(-0.951058) , btScalar(-0.309013),btScalar(-0.000000)), - btVector3(btScalar(-0.951058) , btScalar(0.309013),btScalar(-0.000000)), - btVector3(btScalar(-0.587786) , btScalar(0.809017),btScalar(-0.000000)), - btVector3(btScalar(-0.000000) , btScalar(1.000000),btScalar(-0.000000)), - btVector3(btScalar(0.587786) , btScalar(0.809017),btScalar(-0.000000)), - btVector3(btScalar(0.688190) , btScalar(-0.499997),btScalar(0.525736)), - btVector3(btScalar(-0.262869) , btScalar(-0.809012),btScalar(0.525738)), - btVector3(btScalar(-0.850648) , btScalar(0.000000),btScalar(0.525736)), - btVector3(btScalar(-0.262869) , btScalar(0.809012),btScalar(0.525738)), - btVector3(btScalar(0.688190) , btScalar(0.499997),btScalar(0.525736)), - btVector3(btScalar(0.525730) , btScalar(0.000000),btScalar(0.850652)), - btVector3(btScalar(0.162456) , btScalar(-0.499995),btScalar(0.850654)), - btVector3(btScalar(-0.425323) , btScalar(-0.309011),btScalar(0.850654)), - btVector3(btScalar(-0.425323) , btScalar(0.309011),btScalar(0.850654)), - btVector3(btScalar(0.162456) , btScalar(0.499995),btScalar(0.850654)) - }; - return sUnitSpherePoints; -} - |