diff options
Diffstat (limited to 'thirdparty/bullet/src/BulletCollision/CollisionShapes/btConvexInternalShape.h')
| -rw-r--r-- | thirdparty/bullet/src/BulletCollision/CollisionShapes/btConvexInternalShape.h | 227 |
1 files changed, 0 insertions, 227 deletions
diff --git a/thirdparty/bullet/src/BulletCollision/CollisionShapes/btConvexInternalShape.h b/thirdparty/bullet/src/BulletCollision/CollisionShapes/btConvexInternalShape.h deleted file mode 100644 index 1213b82fbe..0000000000 --- a/thirdparty/bullet/src/BulletCollision/CollisionShapes/btConvexInternalShape.h +++ /dev/null @@ -1,227 +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. -*/ - -#ifndef BT_CONVEX_INTERNAL_SHAPE_H -#define BT_CONVEX_INTERNAL_SHAPE_H - -#include "btConvexShape.h" -#include "LinearMath/btAabbUtil2.h" - - -///The btConvexInternalShape is an internal base class, shared by most convex shape implementations. -///The btConvexInternalShape uses a default collision margin set to CONVEX_DISTANCE_MARGIN. -///This collision margin used by Gjk and some other algorithms, see also btCollisionMargin.h -///Note that when creating small shapes (derived from btConvexInternalShape), -///you need to make sure to set a smaller collision margin, using the 'setMargin' API -///There is a automatic mechanism 'setSafeMargin' used by btBoxShape and btCylinderShape -ATTRIBUTE_ALIGNED16(class) btConvexInternalShape : public btConvexShape -{ - - protected: - - //local scaling. collisionMargin is not scaled ! - btVector3 m_localScaling; - - btVector3 m_implicitShapeDimensions; - - btScalar m_collisionMargin; - - btScalar m_padding; - - btConvexInternalShape(); - -public: - - BT_DECLARE_ALIGNED_ALLOCATOR(); - - virtual ~btConvexInternalShape() - { - - } - - virtual btVector3 localGetSupportingVertex(const btVector3& vec)const; - - const btVector3& getImplicitShapeDimensions() const - { - return m_implicitShapeDimensions; - } - - ///warning: use setImplicitShapeDimensions with care - ///changing a collision shape while the body is in the world is not recommended, - ///it is best to remove the body from the world, then make the change, and re-add it - ///alternatively flush the contact points, see documentation for 'cleanProxyFromPairs' - void setImplicitShapeDimensions(const btVector3& dimensions) - { - m_implicitShapeDimensions = dimensions; - } - - void setSafeMargin(btScalar minDimension, btScalar defaultMarginMultiplier = 0.1f) - { - btScalar safeMargin = defaultMarginMultiplier*minDimension; - if (safeMargin < getMargin()) - { - setMargin(safeMargin); - } - } - void setSafeMargin(const btVector3& halfExtents, btScalar defaultMarginMultiplier = 0.1f) - { - //see http://code.google.com/p/bullet/issues/detail?id=349 - //this margin check could could be added to other collision shapes too, - //or add some assert/warning somewhere - btScalar minDimension=halfExtents[halfExtents.minAxis()]; - setSafeMargin(minDimension, defaultMarginMultiplier); - } - - ///getAabb's default implementation is brute force, expected derived classes to implement a fast dedicated version - void getAabb(const btTransform& t,btVector3& aabbMin,btVector3& aabbMax) const - { - getAabbSlow(t,aabbMin,aabbMax); - } - - - - virtual void getAabbSlow(const btTransform& t,btVector3& aabbMin,btVector3& aabbMax) const; - - - virtual void setLocalScaling(const btVector3& scaling); - virtual const btVector3& getLocalScaling() const - { - return m_localScaling; - } - - const btVector3& getLocalScalingNV() const - { - return m_localScaling; - } - - virtual void setMargin(btScalar margin) - { - m_collisionMargin = margin; - } - virtual btScalar getMargin() const - { - return m_collisionMargin; - } - - btScalar getMarginNV() const - { - return m_collisionMargin; - } - - virtual int getNumPreferredPenetrationDirections() const - { - return 0; - } - - virtual void getPreferredPenetrationDirection(int index, btVector3& penetrationVector) const - { - (void)penetrationVector; - (void)index; - btAssert(0); - } - - virtual int calculateSerializeBufferSize() const; - - ///fills the dataBuffer and returns the struct name (and 0 on failure) - virtual const char* serialize(void* dataBuffer, btSerializer* serializer) const; - - -}; - -///do not change those serialization structures, it requires an updated sBulletDNAstr/sBulletDNAstr64 -struct btConvexInternalShapeData -{ - btCollisionShapeData m_collisionShapeData; - - btVector3FloatData m_localScaling; - - btVector3FloatData m_implicitShapeDimensions; - - float m_collisionMargin; - - int m_padding; - -}; - - - -SIMD_FORCE_INLINE int btConvexInternalShape::calculateSerializeBufferSize() const -{ - return sizeof(btConvexInternalShapeData); -} - -///fills the dataBuffer and returns the struct name (and 0 on failure) -SIMD_FORCE_INLINE const char* btConvexInternalShape::serialize(void* dataBuffer, btSerializer* serializer) const -{ - btConvexInternalShapeData* shapeData = (btConvexInternalShapeData*) dataBuffer; - btCollisionShape::serialize(&shapeData->m_collisionShapeData, serializer); - - m_implicitShapeDimensions.serializeFloat(shapeData->m_implicitShapeDimensions); - m_localScaling.serializeFloat(shapeData->m_localScaling); - shapeData->m_collisionMargin = float(m_collisionMargin); - - // Fill padding with zeros to appease msan. - shapeData->m_padding = 0; - - return "btConvexInternalShapeData"; -} - - - - -///btConvexInternalAabbCachingShape adds local aabb caching for convex shapes, to avoid expensive bounding box calculations -class btConvexInternalAabbCachingShape : public btConvexInternalShape -{ - btVector3 m_localAabbMin; - btVector3 m_localAabbMax; - bool m_isLocalAabbValid; - -protected: - - btConvexInternalAabbCachingShape(); - - void setCachedLocalAabb (const btVector3& aabbMin, const btVector3& aabbMax) - { - m_isLocalAabbValid = true; - m_localAabbMin = aabbMin; - m_localAabbMax = aabbMax; - } - - inline void getCachedLocalAabb (btVector3& aabbMin, btVector3& aabbMax) const - { - btAssert(m_isLocalAabbValid); - aabbMin = m_localAabbMin; - aabbMax = m_localAabbMax; - } - - inline void getNonvirtualAabb(const btTransform& trans,btVector3& aabbMin,btVector3& aabbMax, btScalar margin) const - { - - //lazy evaluation of local aabb - btAssert(m_isLocalAabbValid); - btTransformAabb(m_localAabbMin,m_localAabbMax,margin,trans,aabbMin,aabbMax); - } - -public: - - virtual void setLocalScaling(const btVector3& scaling); - - virtual void getAabb(const btTransform& t,btVector3& aabbMin,btVector3& aabbMax) const; - - void recalcLocalAabb(); - -}; - -#endif //BT_CONVEX_INTERNAL_SHAPE_H |