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/*
* Copyright (C) 2005-2009 MaNGOS <http://getmangos.com/>
*
* Copyright (C) 2008-2009 Trinity <http://www.trinitycore.org/>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "SubModel.h"
#ifdef _ASSEMBLER_DEBUG
extern FILE *::g_df;
#endif
using namespace G3D;
namespace VMAP
{
//==========================================================
/**
Functions to use ModelContainer with a AABSPTree
*/
unsigned int hashCode(const SubModel& pSm)
{
return pSm.getNTriangles();
}
void getBounds(const SubModel& pSm, G3D::AABox& pAABox)
{
ShortBox box = pSm.getReletiveBounds();
pAABox.set(box.getLo().getVector3()+pSm.getBasePosition(), box.getHi().getVector3()+pSm.getBasePosition());
}
void getBounds(const SubModel* pSm, G3D::AABox& pAABox)
{
ShortBox box = pSm->getReletiveBounds();
pAABox.set(box.getLo().getVector3()+pSm->getBasePosition(), box.getHi().getVector3()+pSm->getBasePosition());
}
//==========================================================
//==========================================================
//==========================================================
//==========================================================
SubModel::SubModel(unsigned int pNTriangles, TriangleBox *pTriangles, unsigned int pTrianglesPos, unsigned int pNNodes, TreeNode *pTreeNodes, unsigned int pNodesPos) :
BaseModel(pNNodes, pTreeNodes, pNTriangles, pTriangles)
{
iTrianglesPos = pTrianglesPos;
iNodesPos = pNodesPos;
iHasInternalMemAlloc = false;
}
//==========================================================
SubModel::~SubModel(void)
{
if(iHasInternalMemAlloc)
{
free();
}
}
//==========================================================
bool SubModel::operator==(const SubModel& pSm2) const
{
bool result = false;
if(getNNodes() == pSm2.getNNodes() &&
getNTriangles() == pSm2.getNTriangles() &&
getBasePosition() == pSm2.getBasePosition() &&
getNodesPos() == pSm2.getNodesPos() &&
getTrianglesPos() == pSm2.getTrianglesPos())
{
result = true;
}
return result;
}
//==========================================================
enum BIN_POSITIONS
{
BP_iNTriangles=8,
BP_iNNodes=12,
BP_iBasePosition=16,
BP_iNodesPos=28,
BP_iTrianglesPos=32,
BP_iHasInternalMemAlloc=36,
BP_iBox=38,
};
/**
This is ugly, but due to compatibility and 64 bit support we have to do that ... sorry
*/
void SubModel::initFromBinBlock(void *pBinBlock)
{
iNTriangles = *((unsigned int *)(((char *) pBinBlock) + BP_iNTriangles));
iNNodes = *((unsigned int *) (((char *) pBinBlock) + BP_iNNodes));
iBasePosition = *((Vector3 *) (((char *) pBinBlock) + BP_iBasePosition));
iNodesPos = *((unsigned int *) (((char *) pBinBlock) + BP_iNodesPos));
iTrianglesPos = *((unsigned int *) (((char *) pBinBlock) + BP_iTrianglesPos));
iHasInternalMemAlloc = *((bool *) (((char *) pBinBlock) + BP_iHasInternalMemAlloc));
iBox = *((ShortBox *) (((char *) pBinBlock) + BP_iBox));
}
//==========================================================
void SubModel::countNodesAndTriangles(AABSPTree<Triangle>::Node& pNode, int &pNNodes, int &pNTriabgles)
{
++pNNodes;
pNTriabgles += pNode.valueArray.size();
#ifdef _ASSEMBLER_DEBUG
fprintf(::g_df, "Nodes: %d, Tris: %d\n",pNNodes, pNTriabgles);
#endif
if(pNode.child[0] != 0)
{
countNodesAndTriangles(*pNode.child[0], pNNodes, pNTriabgles);
}
if(pNode.child[1] != 0)
{
countNodesAndTriangles(*pNode.child[1], pNNodes, pNTriabgles);
}
}
//==========================================================
void SubModel::fillContainer(const AABSPTree<Triangle>::Node& pNode, int &pTreeNodePos, int &pTrianglePos, Vector3& pLo, Vector3& pHi)
{
TreeNode treeNode = TreeNode(pNode.valueArray.size(), pTrianglePos);
treeNode.setSplitAxis(pNode.splitAxis);
treeNode.setSplitLocation(pNode.splitLocation);
int currentTreeNodePos = pTreeNodePos++;
Vector3 lo = Vector3(inf(),inf(),inf());
Vector3 hi = Vector3(-inf(),-inf(),-inf());
for(int i=0;i<pNode.valueArray.size(); i++)
{
G3D::_AABSPTree::Handle<Triangle>* h= pNode.valueArray[i];
Triangle t = h->value;
TriangleBox triangleBox = TriangleBox(t.vertex(0),t.vertex(1), t.vertex(2));
lo = lo.min(triangleBox.getBounds().getLo().getVector3());
hi = hi.max(triangleBox.getBounds().getHi().getVector3());
getTriangles()[pTrianglePos++] = triangleBox;
}
if(pNode.child[0] != 0)
{
treeNode.setChildPos(0, pTreeNodePos);
fillContainer(*pNode.child[0], pTreeNodePos, pTrianglePos, lo, hi);
}
if(pNode.child[1] != 0)
{
treeNode.setChildPos(1, pTreeNodePos);
fillContainer(*pNode.child[1], pTreeNodePos, pTrianglePos, lo, hi);
}
treeNode.setBounds(lo,hi);
// get absolute bounds
pLo = pLo.min(lo);
pHi = pHi.max(hi);
getTreeNodes()[currentTreeNodePos] = treeNode;
}
//==========================================================
SubModel::SubModel(AABSPTree<Triangle> *pTree)
{
int nNodes, nTriangles;
nNodes = nTriangles = 0;
countNodesAndTriangles(*pTree->root, nNodes, nTriangles);
init(nNodes, nTriangles);
iTrianglesPos = 0; // this is the global array
iNodesPos = 0; // this is the global array
iHasInternalMemAlloc = true;
int treeNodePos, trianglePos;
treeNodePos = trianglePos = 0;
Vector3 lo = Vector3(inf(),inf(),inf());
Vector3 hi = Vector3(-inf(),-inf(),-inf());
fillContainer(*pTree->root, treeNodePos, trianglePos, lo, hi);
setReletiveBounds(lo, hi);
}
//==========================================================
#ifdef _DEBUG_VMAPS
#ifndef gBoxArray
extern Vector3 p1,p2,p3,p4,p5,p6,p7;
extern Array<AABox>gBoxArray;
extern Array<G3D::Triangle>gTriArray;
extern int gCount1, gCount2, gCount3, gCount4;
extern bool myfound;
#endif
#endif
//==========================================================
void SubModel::intersect(const G3D::Ray& pRay, float& pMaxDist, bool pStopAtFirstHit, G3D::Vector3& /*pOutLocation*/, G3D::Vector3& /*pOutNormal*/) const
{
NodeValueAccess<TreeNode, TriangleBox> vna = NodeValueAccess<TreeNode, TriangleBox>(getTreeNodes(), getTriangles());
IntersectionCallBack<TriangleBox> intersectCallback;
Ray relativeRay = Ray::fromOriginAndDirection(pRay.origin - getBasePosition(), pRay.direction);
#ifdef _DEBUG_VMAPS
//p6=getBasePosition();
//gBoxArray.push_back(getAABoxBounds());
#endif
getTreeNode(0).intersectRay(relativeRay, intersectCallback, pMaxDist, vna, pStopAtFirstHit, false);
}
//==========================================================
bool SubModel::intersect(const G3D::Ray& pRay, float& pMaxDist) const
{
return BaseModel::intersect(getAABoxBounds(), pRay, pMaxDist);
}
//==========================================================
template<typename RayCallback>
void SubModel::intersectRay(const Ray& pRay, RayCallback& pIntersectCallback, float& pMaxDist, bool pStopAtFirstHit, bool intersectCallbackIsFast)
{
if(intersect(pRay, pMaxDist))
{
NodeValueAccess<TreeNode, TriangleBox> vna = NodeValueAccess<TreeNode, TriangleBox>(getTreeNodes(), getTriangles());
IntersectionCallBack<TriangleBox> intersectCallback;
getTreeNode(0).intersectRay(pRay, intersectCallback, pMaxDist, vna, pStopAtFirstHit, false);
}
}
//==========================================================
}
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