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/*
* Copyright (c) 2005 Erwin Coumans http://continuousphysics.com/Bullet/
*
* Permission to use, copy, modify, distribute and sell this software
* and its documentation for any purpose is hereby granted without fee,
* provided that the above copyright notice appear in all copies.
* Erwin Coumans makes no representations about the suitability
* of this software for any purpose.
* It is provided "as is" without express or implied warranty.
*/
#include "Simplex1to4Shape.h"
#include "SimdMatrix3x3.h"
BU_Simplex1to4::BU_Simplex1to4()
:m_numVertices(0)
{
}
BU_Simplex1to4::BU_Simplex1to4(const SimdPoint3& pt0)
:m_numVertices(0)
{
AddVertex(pt0);
}
BU_Simplex1to4::BU_Simplex1to4(const SimdPoint3& pt0,const SimdPoint3& pt1)
:m_numVertices(0)
{
AddVertex(pt0);
AddVertex(pt1);
}
BU_Simplex1to4::BU_Simplex1to4(const SimdPoint3& pt0,const SimdPoint3& pt1,const SimdPoint3& pt2)
:m_numVertices(0)
{
AddVertex(pt0);
AddVertex(pt1);
AddVertex(pt2);
}
BU_Simplex1to4::BU_Simplex1to4(const SimdPoint3& pt0,const SimdPoint3& pt1,const SimdPoint3& pt2,const SimdPoint3& pt3)
:m_numVertices(0)
{
AddVertex(pt0);
AddVertex(pt1);
AddVertex(pt2);
AddVertex(pt3);
}
void BU_Simplex1to4::AddVertex(const SimdPoint3& pt)
{
m_vertices[m_numVertices++] = pt;
}
int BU_Simplex1to4::GetNumVertices() const
{
return m_numVertices;
}
int BU_Simplex1to4::GetNumEdges() const
{
//euler formula, F-E+V = 2, so E = F+V-2
switch (m_numVertices)
{
case 0:
return 0;
case 1: return 0;
case 2: return 1;
case 3: return 3;
case 4: return 6;
}
return 0;
}
void BU_Simplex1to4::GetEdge(int i,SimdPoint3& pa,SimdPoint3& pb) const
{
switch (m_numVertices)
{
case 2:
pa = m_vertices[0];
pb = m_vertices[1];
break;
case 3:
switch (i)
{
case 0:
pa = m_vertices[0];
pb = m_vertices[1];
break;
case 1:
pa = m_vertices[1];
pb = m_vertices[2];
break;
case 2:
pa = m_vertices[2];
pb = m_vertices[0];
break;
}
break;
case 4:
switch (i)
{
case 0:
pa = m_vertices[0];
pb = m_vertices[1];
break;
case 1:
pa = m_vertices[1];
pb = m_vertices[2];
break;
case 2:
pa = m_vertices[2];
pb = m_vertices[0];
break;
case 3:
pa = m_vertices[0];
pb = m_vertices[3];
break;
case 4:
pa = m_vertices[1];
pb = m_vertices[3];
break;
case 5:
pa = m_vertices[2];
pb = m_vertices[3];
break;
}
}
}
void BU_Simplex1to4::GetVertex(int i,SimdPoint3& vtx) const
{
vtx = m_vertices[i];
}
int BU_Simplex1to4::GetNumPlanes() const
{
switch (m_numVertices)
{
case 0:
return 0;
case 1:
return 0;
case 2:
return 0;
case 3:
return 2;
case 4:
return 4;
default:
{
}
}
return 0;
}
void BU_Simplex1to4::GetPlane(SimdVector3& planeNormal,SimdPoint3& planeSupport,int i) const
{
}
int BU_Simplex1to4::GetIndex(int i) const
{
return 0;
}
bool BU_Simplex1to4::IsInside(const SimdPoint3& pt,SimdScalar tolerance) const
{
return false;
}
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