Merge pull request #12641 from AndreaCatania/bullet

Bullet physics wrapper

1 files changed, 95 insertions, 0 deletions

diff --git a/thirdparty/bullet/src/BulletCollision/CollisionShapes/btScaledBvhTriangleMeshShape.h b/thirdparty/bullet/src/BulletCollision/CollisionShapes/btScaledBvhTriangleMeshShape.h
new file mode 100644
index 0000000000..39049eaf08
--- /dev/null
+++ b/thirdparty/bullet/src/BulletCollision/CollisionShapes/btScaledBvhTriangleMeshShape.h
@@ -0,0 +1,95 @@
+/*
+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_SCALED_BVH_TRIANGLE_MESH_SHAPE_H
+#define BT_SCALED_BVH_TRIANGLE_MESH_SHAPE_H
+
+#include "BulletCollision/CollisionShapes/btBvhTriangleMeshShape.h"
+
+
+///The btScaledBvhTriangleMeshShape allows to instance a scaled version of an existing btBvhTriangleMeshShape.
+///Note that each btBvhTriangleMeshShape still can have its own local scaling, independent from this btScaledBvhTriangleMeshShape 'localScaling'
+ATTRIBUTE_ALIGNED16(class) btScaledBvhTriangleMeshShape : public btConcaveShape
+{
+	
+	
+	btVector3	m_localScaling;
+
+	btBvhTriangleMeshShape*	m_bvhTriMeshShape;
+
+public:
+
+	BT_DECLARE_ALIGNED_ALLOCATOR();
+
+
+	btScaledBvhTriangleMeshShape(btBvhTriangleMeshShape* childShape,const btVector3& localScaling);
+
+	virtual ~btScaledBvhTriangleMeshShape();
+
+
+	virtual void getAabb(const btTransform& t,btVector3& aabbMin,btVector3& aabbMax) const;
+	virtual void	setLocalScaling(const btVector3& scaling);
+	virtual const btVector3& getLocalScaling() const;
+	virtual void	calculateLocalInertia(btScalar mass,btVector3& inertia) const;
+
+	virtual void	processAllTriangles(btTriangleCallback* callback,const btVector3& aabbMin,const btVector3& aabbMax) const;
+
+	btBvhTriangleMeshShape*	getChildShape()
+	{
+		return m_bvhTriMeshShape;
+	}
+
+	const btBvhTriangleMeshShape*	getChildShape() const
+	{
+		return m_bvhTriMeshShape;
+	}
+
+	//debugging
+	virtual const char*	getName()const {return "SCALEDBVHTRIANGLEMESH";}
+
+	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	btScaledTriangleMeshShapeData
+{
+	btTriangleMeshShapeData	m_trimeshShapeData;
+
+	btVector3FloatData	m_localScaling;
+};
+
+
+SIMD_FORCE_INLINE	int	btScaledBvhTriangleMeshShape::calculateSerializeBufferSize() const
+{
+	return sizeof(btScaledTriangleMeshShapeData);
+}
+
+
+///fills the dataBuffer and returns the struct name (and 0 on failure)
+SIMD_FORCE_INLINE	const char*	btScaledBvhTriangleMeshShape::serialize(void* dataBuffer, btSerializer* serializer) const
+{
+	btScaledTriangleMeshShapeData* scaledMeshData = (btScaledTriangleMeshShapeData*) dataBuffer;
+	m_bvhTriMeshShape->serialize(&scaledMeshData->m_trimeshShapeData,serializer);
+	scaledMeshData->m_trimeshShapeData.m_collisionShapeData.m_shapeType = SCALED_TRIANGLE_MESH_SHAPE_PROXYTYPE;
+	m_localScaling.serializeFloat(scaledMeshData->m_localScaling);
+	return "btScaledTriangleMeshShapeData";
+}
+
+
+#endif //BT_SCALED_BVH_TRIANGLE_MESH_SHAPE_H