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engines/hpl1/engine/libraries/newton/physics/dgCollisionConvexHull.h

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+/* Copyright (c) <2003-2011> <Julio Jerez, Newton Game Dynamics>
+*
+* 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.
+*/
+
+#if !defined(AFX_DGCOLLISIONCONVEXHULL_H__AS235640FER__INCLUDED_)
+#define AFX_DGCOLLISIONCONVEXHULL_H__AS235640FER__INCLUDED_
+
+#include "dgCollisionConvex.h"
+
+
+class dgCollisionConvexHull: public dgCollisionConvex {
+public:
+	dgCollisionConvexHull(dgMemoryAllocator *const allocator, dgUnsigned32 signature, dgInt32 count, dgInt32 strideInBytes, dgFloat32 tolerance, const dgFloat32 *vertexArray, const dgMatrix &matrix);
+	dgCollisionConvexHull(dgWorld *const world, dgDeserialize deserialization, void *const userData);
+	virtual ~dgCollisionConvexHull();
+
+	dgInt32 GetFaceIndices(dgInt32 index, dgInt32 *indices) const;
+private:
+
+	bool Create(dgInt32 count, dgInt32 strideInBytes, const dgFloat32 *const vertexArray, dgFloat32 tolerance);
+
+	bool RemoveCoplanarEdge(dgPolyhedra &convex, const dgBigVector *const hullVertexArray) const;
+	dgBigVector FaceNormal(const dgEdge *face, const dgBigVector *const pool) const;
+	bool CheckConvex(dgPolyhedra &polyhedra, const dgBigVector *hullVertexArray) const;
+
+	virtual dgInt32 CalculateSignature() const;
+	virtual void SetCollisionBBox(const dgVector &p0, const dgVector &p1);
+	virtual void DebugCollision(const dgMatrix &matrix, OnDebugCollisionMeshCallback callback, void *const userData) const;
+	virtual void GetCollisionInfo(dgCollisionInfo *info) const;
+	virtual void Serialize(dgSerialize callback, void *const userData) const;
+	virtual bool OOBBTest(const dgMatrix &matrix, const dgCollisionConvex *const shape, void *const cacheOrder) const;
+
+	virtual void SetBreakImpulse(dgFloat32 force);
+	virtual dgFloat32 GetBreakImpulse() const;
+
+	dgFloat32 m_destructionImpulse;
+	dgInt32 m_faceCount;
+	dgInt32 m_boundPlanesCount;
+	dgConvexSimplexEdge **m_faceArray;
+
+	friend class dgWorld;
+	friend class dgCollisionConvex;
+};
+
+#endif
+