forked from bartvdbraak/blender
75 lines
2.0 KiB
C++
75 lines
2.0 KiB
C++
/*
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* Copyright (c) 2005 Erwin Coumans http://www.erwincoumans.com
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*
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* Permission to use, copy, modify, distribute and sell this software
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* and its documentation for any purpose is hereby granted without fee,
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* provided that the above copyright notice appear in all copies.
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* Erwin Coumans makes no representations about the suitability
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* of this software for any purpose.
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* It is provided "as is" without express or implied warranty.
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*/
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#ifndef BU_SIMPLEX_1TO4_SHAPE
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#define BU_SIMPLEX_1TO4_SHAPE
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#include <CollisionShapes/PolyhedralConvexShape.h>
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#include "BroadphaseCollision/BroadphaseProxy.h"
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///BU_Simplex1to4 implements feature based and implicit simplex of up to 4 vertices (tetrahedron, triangle, line, vertex).
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class BU_Simplex1to4 : public PolyhedralConvexShape
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{
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protected:
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int m_numVertices;
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SimdPoint3 m_vertices[4];
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public:
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BU_Simplex1to4();
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BU_Simplex1to4(const SimdPoint3& pt0);
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BU_Simplex1to4(const SimdPoint3& pt0,const SimdPoint3& pt1);
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BU_Simplex1to4(const SimdPoint3& pt0,const SimdPoint3& pt1,const SimdPoint3& pt2);
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BU_Simplex1to4(const SimdPoint3& pt0,const SimdPoint3& pt1,const SimdPoint3& pt2,const SimdPoint3& pt3);
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void Reset()
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{
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m_numVertices = 0;
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}
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virtual void CalculateLocalInertia(SimdScalar mass,SimdVector3& inertia)
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{
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inertia = SimdVector3(1.f,1.f,1.f);
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}
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virtual int GetShapeType() const{ return TETRAHEDRAL_SHAPE_PROXYTYPE; }
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void AddVertex(const SimdPoint3& pt);
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//PolyhedralConvexShape interface
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virtual int GetNumVertices() const;
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virtual int GetNumEdges() const;
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virtual void GetEdge(int i,SimdPoint3& pa,SimdPoint3& pb) const;
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virtual void GetVertex(int i,SimdPoint3& vtx) const;
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virtual int GetNumPlanes() const;
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virtual void GetPlane(SimdVector3& planeNormal,SimdPoint3& planeSupport,int i) const;
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virtual int GetIndex(int i) const;
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virtual bool IsInside(const SimdPoint3& pt,SimdScalar tolerance) const;
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///GetName is for debugging
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virtual char* GetName()const { return "BU_Simplex1to4";}
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};
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#endif //BU_SIMPLEX_1TO4_SHAPE
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