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Diffstat (limited to 'extern/bullet2/src/BulletCollision/NarrowPhaseCollision/btPolyhedralContactClipping.h')
| -rw-r--r-- | extern/bullet2/src/BulletCollision/NarrowPhaseCollision/btPolyhedralContactClipping.h | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/extern/bullet2/src/BulletCollision/NarrowPhaseCollision/btPolyhedralContactClipping.h b/extern/bullet2/src/BulletCollision/NarrowPhaseCollision/btPolyhedralContactClipping.h new file mode 100644 index 00000000000..99103df2027 --- /dev/null +++ b/extern/bullet2/src/BulletCollision/NarrowPhaseCollision/btPolyhedralContactClipping.h @@ -0,0 +1,46 @@ +/* +Bullet Continuous Collision Detection and Physics Library +Copyright (c) 2011 Advanced Micro Devices, Inc. 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. +*/ + + +///This file was written by Erwin Coumans + + +#ifndef BT_POLYHEDRAL_CONTACT_CLIPPING_H +#define BT_POLYHEDRAL_CONTACT_CLIPPING_H + + +#include "LinearMath/btAlignedObjectArray.h" +#include "LinearMath/btTransform.h" +#include "btDiscreteCollisionDetectorInterface.h" + +class btConvexPolyhedron; + +typedef btAlignedObjectArray<btVector3> btVertexArray; + +// Clips a face to the back of a plane +struct btPolyhedralContactClipping +{ + static void clipHullAgainstHull(const btVector3& separatingNormal, const btConvexPolyhedron& hullA, const btConvexPolyhedron& hullB, const btTransform& transA,const btTransform& transB, const btScalar minDist, btScalar maxDist, btDiscreteCollisionDetectorInterface::Result& resultOut); + static void clipFaceAgainstHull(const btVector3& separatingNormal, const btConvexPolyhedron& hullA, const btTransform& transA, btVertexArray& worldVertsB1, const btScalar minDist, btScalar maxDist,btDiscreteCollisionDetectorInterface::Result& resultOut); + + static bool findSeparatingAxis( const btConvexPolyhedron& hullA, const btConvexPolyhedron& hullB, const btTransform& transA,const btTransform& transB, btVector3& sep); + + ///the clipFace method is used internally + static void clipFace(const btVertexArray& pVtxIn, btVertexArray& ppVtxOut, const btVector3& planeNormalWS,btScalar planeEqWS); + +}; + +#endif // BT_POLYHEDRAL_CONTACT_CLIPPING_H + |