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Diffstat (limited to 'extern/bullet2/BulletCollision/CollisionShapes/btMultiSphereShape.cpp')
| -rw-r--r-- | extern/bullet2/BulletCollision/CollisionShapes/btMultiSphereShape.cpp | 167 |
1 files changed, 0 insertions, 167 deletions
diff --git a/extern/bullet2/BulletCollision/CollisionShapes/btMultiSphereShape.cpp b/extern/bullet2/BulletCollision/CollisionShapes/btMultiSphereShape.cpp deleted file mode 100644 index c996bfcdaba..00000000000 --- a/extern/bullet2/BulletCollision/CollisionShapes/btMultiSphereShape.cpp +++ /dev/null @@ -1,167 +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. -*/ - - - -#include "btMultiSphereShape.h" -#include "BulletCollision/CollisionShapes/btCollisionMargin.h" -#include "LinearMath/btQuaternion.h" -#include "LinearMath/btSerializer.h" - -btMultiSphereShape::btMultiSphereShape (const btVector3* positions,const btScalar* radi,int numSpheres) -:btConvexInternalAabbCachingShape () -{ - m_shapeType = MULTI_SPHERE_SHAPE_PROXYTYPE; - //btScalar startMargin = btScalar(BT_LARGE_FLOAT); - - m_localPositionArray.resize(numSpheres); - m_radiArray.resize(numSpheres); - for (int i=0;i<numSpheres;i++) - { - m_localPositionArray[i] = positions[i]; - m_radiArray[i] = radi[i]; - - } - - recalcLocalAabb(); - -} - - - btVector3 btMultiSphereShape::localGetSupportingVertexWithoutMargin(const btVector3& vec0)const -{ - int i; - btVector3 supVec(0,0,0); - - btScalar maxDot(btScalar(-BT_LARGE_FLOAT)); - - - btVector3 vec = vec0; - btScalar lenSqr = vec.length2(); - if (lenSqr < (SIMD_EPSILON*SIMD_EPSILON)) - { - vec.setValue(1,0,0); - } else - { - btScalar rlen = btScalar(1.) / btSqrt(lenSqr ); - vec *= rlen; - } - - btVector3 vtx; - btScalar newDot; - - const btVector3* pos = &m_localPositionArray[0]; - const btScalar* rad = &m_radiArray[0]; - int numSpheres = m_localPositionArray.size(); - - for (i=0;i<numSpheres;i++) - { - vtx = (*pos) +vec*m_localScaling*(*rad) - vec * getMargin(); - pos++; - rad++; - newDot = vec.dot(vtx); - if (newDot > maxDot) - { - maxDot = newDot; - supVec = vtx; - } - } - - return supVec; - -} - - void btMultiSphereShape::batchedUnitVectorGetSupportingVertexWithoutMargin(const btVector3* vectors,btVector3* supportVerticesOut,int numVectors) const -{ - - for (int j=0;j<numVectors;j++) - { - btScalar maxDot(btScalar(-BT_LARGE_FLOAT)); - - const btVector3& vec = vectors[j]; - - btVector3 vtx; - btScalar newDot; - - const btVector3* pos = &m_localPositionArray[0]; - const btScalar* rad = &m_radiArray[0]; - int numSpheres = m_localPositionArray.size(); - for (int i=0;i<numSpheres;i++) - { - vtx = (*pos) +vec*m_localScaling*(*rad) - vec * getMargin(); - pos++; - rad++; - newDot = vec.dot(vtx); - if (newDot > maxDot) - { - maxDot = newDot; - supportVerticesOut[j] = vtx; - } - } - } -} - - - - - - - - -void btMultiSphereShape::calculateLocalInertia(btScalar mass,btVector3& inertia) const -{ - //as an approximation, take the inertia of the box that bounds the spheres - - btVector3 localAabbMin,localAabbMax; - getCachedLocalAabb(localAabbMin,localAabbMax); - btVector3 halfExtents = (localAabbMax-localAabbMin)*btScalar(0.5); - - btScalar lx=btScalar(2.)*(halfExtents.x()); - btScalar ly=btScalar(2.)*(halfExtents.y()); - btScalar lz=btScalar(2.)*(halfExtents.z()); - - inertia.setValue(mass/(btScalar(12.0)) * (ly*ly + lz*lz), - mass/(btScalar(12.0)) * (lx*lx + lz*lz), - mass/(btScalar(12.0)) * (lx*lx + ly*ly)); - -} - - -///fills the dataBuffer and returns the struct name (and 0 on failure) -const char* btMultiSphereShape::serialize(void* dataBuffer, btSerializer* serializer) const -{ - btMultiSphereShapeData* shapeData = (btMultiSphereShapeData*) dataBuffer; - btConvexInternalShape::serialize(&shapeData->m_convexInternalShapeData, serializer); - - int numElem = m_localPositionArray.size(); - shapeData->m_localPositionArrayPtr = numElem ? (btPositionAndRadius*)serializer->getUniquePointer((void*)&m_localPositionArray[0]): 0; - - shapeData->m_localPositionArraySize = numElem; - if (numElem) - { - btChunk* chunk = serializer->allocate(sizeof(btPositionAndRadius),numElem); - btPositionAndRadius* memPtr = (btPositionAndRadius*)chunk->m_oldPtr; - for (int i=0;i<numElem;i++,memPtr++) - { - m_localPositionArray[i].serializeFloat(memPtr->m_pos); - memPtr->m_radius = float(m_radiArray[i]); - } - serializer->finalizeChunk(chunk,"btPositionAndRadius",BT_ARRAY_CODE,(void*)&m_localPositionArray[0]); - } - - return "btMultiSphereShapeData"; -} - - |