mirror of
https://github.com/ptitSeb/Serious-Engine
synced 2024-12-25 15:14:51 +01:00
487 lines
16 KiB
C++
487 lines
16 KiB
C++
/* Copyright (c) 2002-2012 Croteam Ltd.
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This program is free software; you can redistribute it and/or modify
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it under the terms of version 2 of the GNU General Public License as published by
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the Free Software Foundation
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */
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#include "stdh.h"
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#include <Engine/Models/MipMaker.h>
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#include <Engine/Math/Vector.h>
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#include <Engine/Base/FileName.h>
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#include <Engine/Base/ErrorReporting.h>
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#include <Engine/Templates/DynamicArray.cpp>
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#include <Engine/Templates/DynamicContainer.cpp>
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// if vertex removing should occure only inside surfaces
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static BOOL _bPreserveSurfaces;
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CMipModel::~CMipModel()
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{
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mm_amsSurfaces.Clear();
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mm_ampPolygons.Clear();
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mm_amvVertices.Clear();
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}
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CMipVertex::CMipVertex()
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{
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}
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CMipVertex::~CMipVertex()
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{
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}
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void CMipVertex::Clear()
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{
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}
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CMipPolygon::CMipPolygon()
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{
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mp_pmpvFirstPolygonVertex = NULL;
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}
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CMipPolygon::~CMipPolygon()
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{
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Clear();
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}
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void CMipPolygon::Clear()
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{
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if (mp_pmpvFirstPolygonVertex!=NULL) {
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// delete all vertices in this polygon
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CMipPolygonVertex *pmpvCurrentInPolygon = mp_pmpvFirstPolygonVertex;
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do
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{
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CMipPolygonVertex *pvNextInPolygon = pmpvCurrentInPolygon->mpv_pmpvNextInPolygon;
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delete pmpvCurrentInPolygon;
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pmpvCurrentInPolygon = pvNextInPolygon;
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}
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while( pmpvCurrentInPolygon != mp_pmpvFirstPolygonVertex);
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}
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mp_pmpvFirstPolygonVertex = NULL;
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}
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void CMipModel::ToObject3D( CObject3D &objDestination)
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{
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// add one sector
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CObjectSector *pOS = objDestination.ob_aoscSectors.New(1);
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// add vertices to sector
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pOS->osc_aovxVertices.New( mm_amvVertices.Count());
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pOS->osc_aovxVertices.Lock();
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INDEX iVertice = 0;
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FOREACHINDYNAMICARRAY( mm_amvVertices, CMipVertex, itVertice)
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{
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FLOAT3D vRestFrame = itVertice->mv_vRestFrameCoordinate;
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pOS->osc_aovxVertices[ iVertice] = FLOATtoDOUBLE( vRestFrame);
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iVertice++;
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}
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// add mip surfaces as materials to object 3d
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pOS->osc_aomtMaterials.New( mm_amsSurfaces.Count());
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pOS->osc_aomtMaterials.Lock();
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INDEX iMaterial = 0;
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FOREACHINDYNAMICARRAY( mm_amsSurfaces, CMipSurface, itSurface)
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{
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pOS->osc_aomtMaterials[ iMaterial].omt_Name = itSurface->ms_strName;
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pOS->osc_aomtMaterials[ iMaterial].omt_Color = itSurface->ms_colColor;
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iMaterial ++;
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}
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// add polygons to object 3d
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FOREACHINDYNAMICARRAY( mm_ampPolygons, CMipPolygon, itPolygon)
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{
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// prepare array of polygon vertex indices
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INDEX aivVertices[ 32];
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CMipPolygonVertex *pmpvPolygonVertex = itPolygon->mp_pmpvFirstPolygonVertex;
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INDEX ctPolygonVertices = 0;
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do
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{
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ASSERT( ctPolygonVertices<32);
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if( ctPolygonVertices >= 32) break;
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// add global index of vertex to list of vertex indices of polygon
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mm_amvVertices.Lock();
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aivVertices[ ctPolygonVertices] =
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mm_amvVertices.Index( pmpvPolygonVertex->mpv_pmvVertex);
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mm_amvVertices.Unlock();
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pmpvPolygonVertex = pmpvPolygonVertex->mpv_pmpvNextInPolygon;
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ctPolygonVertices ++;
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}
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while( pmpvPolygonVertex != itPolygon->mp_pmpvFirstPolygonVertex);
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// add current polygon
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pOS->CreatePolygon( ctPolygonVertices, aivVertices,
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pOS->osc_aomtMaterials[ itPolygon->mp_iSurface], 0, FALSE);
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}
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pOS->osc_aomtMaterials.Unlock();
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pOS->osc_aovxVertices.Unlock();
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}
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void CMipModel::FromObject3D_t( CObject3D &objRestFrame, CObject3D &objMipSourceFrame)
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{
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INDEX ctInvalidVertices = 0;
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CTString strInvalidVertices;
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char achrErrorVertice[ 256];
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objMipSourceFrame.ob_aoscSectors.Lock();
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objRestFrame.ob_aoscSectors.Lock();
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// lock object sectors dynamic array
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objMipSourceFrame.ob_aoscSectors[0].LockAll();
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objRestFrame.ob_aoscSectors[0].LockAll();
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CObjectSector *pOS = &objMipSourceFrame.ob_aoscSectors[0];
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// add mip surface
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mm_amsSurfaces.New( pOS->osc_aomtMaterials.Count());
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// copy material data from object 3d to mip surfaces
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INDEX iMaterial = 0;
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FOREACHINDYNAMICARRAY( mm_amsSurfaces, CMipSurface, itSurface)
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{
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itSurface->ms_strName = pOS->osc_aomtMaterials[ iMaterial].omt_Name;
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itSurface->ms_colColor = pOS->osc_aomtMaterials[ iMaterial].omt_Color;
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iMaterial ++;
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}
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// add mip vertices
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mm_amvVertices.New( pOS->osc_aovxVertices.Count());
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// copy vertice coordinates from object3d to mip vertices
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INDEX iVertice = 0;
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{FOREACHINDYNAMICARRAY( mm_amvVertices, CMipVertex, itVertice)
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{
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(FLOAT3D &)(*itVertice) = DOUBLEtoFLOAT( pOS->osc_aovxVertices[ iVertice]);
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itVertice->mv_vRestFrameCoordinate =
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DOUBLEtoFLOAT( objRestFrame.ob_aoscSectors[0].osc_aovxVertices[ iVertice]);
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// calculate bounding box of all vertices
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mm_boxBoundingBox |= *itVertice;
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iVertice++;
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}}
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// add mip polygons
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mm_ampPolygons.New( pOS->osc_aopoPolygons.Count());
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// copy polygons object 3d to mip polygons
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INDEX iPolygon = 0;
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FOREACHINDYNAMICARRAY( mm_ampPolygons, CMipPolygon, itPolygon)
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{
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CObjectPolygon &opoPolygon = pOS->osc_aopoPolygons[ iPolygon];
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CMipPolygon &mpPolygon = itPolygon.Current();
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INDEX ctPolygonVertices = opoPolygon.opo_PolygonEdges.Count();
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// allocate polygon vertices
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CMipPolygonVertex *ppvPolygonVertices[ 32];
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INDEX iPolygonVertice=0;
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for( ; iPolygonVertice<ctPolygonVertices; iPolygonVertice++)
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{
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// allocate one polygon vertex
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ppvPolygonVertices[ iPolygonVertice] = new( CMipPolygonVertex);
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}
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opoPolygon.opo_PolygonEdges.Lock();
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// for each polygon vertex in the polygon
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for( iPolygonVertice=0; iPolygonVertice<ctPolygonVertices; iPolygonVertice++)
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{
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CMipPolygonVertex *ppvPolygonVertex = ppvPolygonVertices[ iPolygonVertice];
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// get the object vertex as first vertex of the edge
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CObjectVertex *povxStart, *povxEnd;
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opoPolygon.opo_PolygonEdges[iPolygonVertice].GetVertices( povxStart, povxEnd);
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INDEX iVertexInSector = pOS->osc_aovxVertices.Index( povxStart);
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// set references to mip polygon and mip vertex
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ppvPolygonVertex->mpv_pmpPolygon = &mpPolygon;
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mm_amvVertices.Lock();
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ppvPolygonVertex->mpv_pmvVertex = &mm_amvVertices[iVertexInSector];
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mm_amvVertices.Unlock();
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// link to previous and next vertices in the mip polygon
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INDEX iNext=(iPolygonVertice+1)%ctPolygonVertices;
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ppvPolygonVertex->mpv_pmpvNextInPolygon = ppvPolygonVertices[ iNext];
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}
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opoPolygon.opo_PolygonEdges.Unlock();
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// set first polygon vertex ptr and surface index to polygon
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itPolygon->mp_pmpvFirstPolygonVertex = ppvPolygonVertices[ 0];
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itPolygon->mp_iSurface =
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pOS->osc_aomtMaterials.Index( opoPolygon.opo_Material);
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iPolygon++;
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}
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objRestFrame.ob_aoscSectors[0].UnlockAll();
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// unlock all dynamic arrays in sector
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objMipSourceFrame.ob_aoscSectors[0].UnlockAll();
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objRestFrame.ob_aoscSectors.Unlock();
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objMipSourceFrame.ob_aoscSectors.Unlock();
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if( ctInvalidVertices != 0)
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{
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sprintf( achrErrorVertice,
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"%d invalid vertices found\n-------------------------\n\n", ctInvalidVertices);
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strInvalidVertices = CTString( achrErrorVertice) + strInvalidVertices;
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strInvalidVertices.Save_t( CTFileName(CTString("Temp\\ErrorVertices.txt")));
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ThrowF_t( "%d invalid vertices found.\nUnable to create mip models.\nList of vertices "
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"that must be fixed can be found in file: \"Temp\\ErrorVertices.txt\".",
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ctInvalidVertices);
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}
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}
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void CMipModel::CheckObjectValidity(void)
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{
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// for all polygons
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FOREACHINDYNAMICARRAY( mm_ampPolygons, CMipPolygon, itPolygon)
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{
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CMipPolygon &mpMipPolygon = *itPolygon;
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CMipPolygonVertex *pvFirstInPolygon = mpMipPolygon.mp_pmpvFirstPolygonVertex;
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CMipPolygonVertex *pvCurrent = pvFirstInPolygon;
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do
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{
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ASSERT( pvCurrent->mpv_pmpPolygon == &mpMipPolygon);
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pvCurrent = pvCurrent->mpv_pmpvNextInPolygon;
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}
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while( pvCurrent != pvFirstInPolygon);
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}
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}
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FLOAT CMipModel::GetGoodness(CMipVertex *pmvSource, CMipVertex *pmvTarget)
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{
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if( (_bPreserveSurfaces) && (pmvSource->mv_iSurface == -2) ) return -10000.0f;
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FLOAT fDistST = ( *pmvSource - *pmvTarget).Length();
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FLOAT fDistBBoxCenterT = ( mm_boxBoundingBox.Center() - *pmvTarget).Length();
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return fDistBBoxCenterT/100.0f + 1.0f/fDistST;
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}
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INDEX CMipModel::FindSurfacesForVertices(void)
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{
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{FOREACHINDYNAMICARRAY( mm_amvVertices, CMipVertex, itVertice)
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{
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itVertice->mv_iSurface = -1;
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}}
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// for all polygons
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{FOREACHINDYNAMICARRAY( mm_ampPolygons, CMipPolygon, itPolygon)
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{
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// for all vertices in this polygon
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CMipPolygonVertex *pmpvCurrentInPolygon = itPolygon->mp_pmpvFirstPolygonVertex;
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do
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{
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CMipVertex *pmvVertex = pmpvCurrentInPolygon->mpv_pmvVertex;
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if( pmvVertex->mv_iSurface == -1) pmvVertex->mv_iSurface = itPolygon->mp_iSurface;
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else if( pmvVertex->mv_iSurface == -2); // do nothing
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else if( pmvVertex->mv_iSurface == itPolygon->mp_iSurface); // do nothing
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else pmvVertex->mv_iSurface = -2;
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pmpvCurrentInPolygon = pmpvCurrentInPolygon->mpv_pmpvNextInPolygon;
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}
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while( pmpvCurrentInPolygon != itPolygon->mp_pmpvFirstPolygonVertex);
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}}
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// count vertices that are sourounded with only one surface
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INDEX ctVerticesWithOneSurface = 0;
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// for all vertices
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{FOREACHINDYNAMICARRAY( mm_amvVertices, CMipVertex, itVertice)
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{
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if( itVertice->mv_iSurface >= 0) ctVerticesWithOneSurface++;
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}}
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return ctVerticesWithOneSurface;
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}
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void CMipModel::JoinVertexPair( CMipVertex *pmvBestSource, CMipVertex *pmvBestTarget)
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{
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// for all polygons
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{FOREACHINDYNAMICARRAY( mm_ampPolygons, CMipPolygon, itPolygon)
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{
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// for all vertices in this polygon
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CMipPolygonVertex *pmpvCurrentInPolygon = itPolygon->mp_pmpvFirstPolygonVertex;
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do
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{
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if( pmpvCurrentInPolygon->mpv_pmvVertex == pmvBestSource)
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{
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pmpvCurrentInPolygon->mpv_pmvVertex = pmvBestTarget;
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}
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pmpvCurrentInPolygon = pmpvCurrentInPolygon->mpv_pmpvNextInPolygon;
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}
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while( pmpvCurrentInPolygon != itPolygon->mp_pmpvFirstPolygonVertex);
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}}
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// delete best source vertex
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mm_amvVertices.Delete( pmvBestSource);
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// for all polygons
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{FOREACHINDYNAMICARRAY( mm_ampPolygons, CMipPolygon, itPolygon)
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{
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// for all vertices in this polygon
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CMipPolygonVertex *pmpvCurrentInPolygon = itPolygon->mp_pmpvFirstPolygonVertex;
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do
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{
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CMipPolygonVertex *pmpvSuccesor = pmpvCurrentInPolygon->mpv_pmpvNextInPolygon;
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// if current vertex and its sucessor are same mip vertex
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if( pmpvCurrentInPolygon->mpv_pmvVertex == pmpvSuccesor->mpv_pmvVertex)
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{
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// enable looping even if vertex that is first in polygon is deleted
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if( pmpvSuccesor == itPolygon->mp_pmpvFirstPolygonVertex)
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{
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itPolygon->mp_pmpvFirstPolygonVertex = pmpvSuccesor->mpv_pmpvNextInPolygon;
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}
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// relink current vertex over sucessor
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pmpvCurrentInPolygon->mpv_pmpvNextInPolygon = pmpvSuccesor->mpv_pmpvNextInPolygon;
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// delete sucessor vertex
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delete pmpvSuccesor;
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}
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pmpvCurrentInPolygon = pmpvCurrentInPolygon->mpv_pmpvNextInPolygon;
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}
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while( pmpvCurrentInPolygon != itPolygon->mp_pmpvFirstPolygonVertex);
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}}
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CDynamicContainer<CMipPolygon> cPolygonsToDelete;
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// for all polygons
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{FOREACHINDYNAMICARRAY( mm_ampPolygons, CMipPolygon, itPolygon)
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{
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CMipPolygonVertex *pmpvFirst = itPolygon->mp_pmpvFirstPolygonVertex;
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// if this is polygon with one or two vertices
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if( (pmpvFirst->mpv_pmpvNextInPolygon == pmpvFirst) ||
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(pmpvFirst->mpv_pmpvNextInPolygon->mpv_pmpvNextInPolygon == pmpvFirst) )
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{
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// add it to container for deleting
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cPolygonsToDelete.Add( &itPolygon.Current());
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}
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}}
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// delete polygons
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{FOREACHINDYNAMICCONTAINER(cPolygonsToDelete, CMipPolygon, itPolygon)
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{
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mm_ampPolygons.Delete( &itPolygon.Current());
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}}
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}
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void CMipModel::FindBestVertexPair( CMipVertex *&pmvBestSource, CMipVertex *&pmvBestTarget)
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{
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pmvBestSource = NULL;
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pmvBestTarget = NULL;
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FLOAT fBestGoodnes = -999999.9f;
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// for all polygons
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{FOREACHINDYNAMICARRAY( mm_ampPolygons, CMipPolygon, itPolygon)
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{
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// for all vertices in this polygon
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CMipPolygonVertex *pmpvCurrentInPolygon = itPolygon->mp_pmpvFirstPolygonVertex;
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do
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{
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CMipVertex *pmvSource = pmpvCurrentInPolygon->mpv_pmvVertex;
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CMipVertex *pmvDestination = pmpvCurrentInPolygon->mpv_pmpvNextInPolygon->mpv_pmvVertex;
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FLOAT fCurrentGoodnes = GetGoodness( pmvSource, pmvDestination);
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if( fCurrentGoodnes > fBestGoodnes)
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{
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fBestGoodnes = fCurrentGoodnes;
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pmvBestSource = pmvSource;
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pmvBestTarget = pmvDestination;
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}
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// now for inverted order
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pmvSource = pmpvCurrentInPolygon->mpv_pmpvNextInPolygon->mpv_pmvVertex;
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pmvDestination = pmpvCurrentInPolygon->mpv_pmvVertex;
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fCurrentGoodnes = GetGoodness( pmvSource, pmvDestination);
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if( fCurrentGoodnes > fBestGoodnes)
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{
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fBestGoodnes = fCurrentGoodnes;
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pmvBestSource = pmvSource;
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pmvBestTarget = pmvDestination;
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}
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pmpvCurrentInPolygon = pmpvCurrentInPolygon->mpv_pmpvNextInPolygon;
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}
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while( pmpvCurrentInPolygon != itPolygon->mp_pmpvFirstPolygonVertex);
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}}
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ASSERT( (pmvBestSource != NULL) && (pmvBestTarget != NULL) );
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ASSERT( pmvBestSource != pmvBestTarget);
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}
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void CMipModel::RemoveUnusedVertices(void)
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{
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// if there are no vertices
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if (mm_amvVertices.Count()==0) {
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// do nothing
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return;
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}
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// clear all vertex tags
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{FOREACHINDYNAMICARRAY(mm_amvVertices, CMipVertex, itmvtx) {
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itmvtx->mv_bUsed = FALSE;
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}}
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// mark all vertices that are used by some polygon
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{FOREACHINDYNAMICARRAY(mm_ampPolygons, CMipPolygon, itpo) {
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CMipPolygonVertex *pmpvCurrentInPolygon = itpo->mp_pmpvFirstPolygonVertex;
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do
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{
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pmpvCurrentInPolygon->mpv_pmvVertex->mv_bUsed = TRUE;
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pmpvCurrentInPolygon = pmpvCurrentInPolygon->mpv_pmpvNextInPolygon;
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}
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while( pmpvCurrentInPolygon != itpo->mp_pmpvFirstPolygonVertex);
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}}
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// find number of used vertices
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INDEX ctUsedVertices = 0;
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{FOREACHINDYNAMICARRAY(mm_amvVertices, CMipVertex, itmvtx) {
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if (itmvtx->mv_bUsed) {
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ctUsedVertices++;
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}
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}}
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// create a new array with as much vertices as we have counted in last pass
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CDynamicArray<CMipVertex> amvxNew;
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CMipVertex *pmvxUsed = amvxNew.New(ctUsedVertices);
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// for each vertex
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{FOREACHINDYNAMICARRAY(mm_amvVertices, CMipVertex, itmvtx) {
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// if it is used
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if (itmvtx->mv_bUsed) {
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// copy it to new array
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*pmvxUsed = itmvtx.Current();
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// set its remap pointer into new array
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itmvtx->mv_pmvxRemap = pmvxUsed;
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pmvxUsed++;
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// if it is not used
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} else {
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// clear its remap pointer (for debugging)
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#ifndef NDEBUG
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itmvtx->mv_pmvxRemap = NULL;
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#endif
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}
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}}
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// for each polygon
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{FOREACHINDYNAMICARRAY(mm_ampPolygons, CMipPolygon, itpo) {
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// for each polygon vertex in polygon
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CMipPolygonVertex *pmpvCurrentInPolygon = itpo->mp_pmpvFirstPolygonVertex;
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|
do
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|
{
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|
// remap pointer to vertex
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|
pmpvCurrentInPolygon->mpv_pmvVertex = pmpvCurrentInPolygon->mpv_pmvVertex->mv_pmvxRemap;
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pmpvCurrentInPolygon = pmpvCurrentInPolygon->mpv_pmpvNextInPolygon;
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}
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while( pmpvCurrentInPolygon != itpo->mp_pmpvFirstPolygonVertex);
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}}
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|
|
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// use new array of vertices instead of the old one
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|
mm_amvVertices.Clear();
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|
mm_amvVertices.MoveArray(amvxNew);
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|
}
|
|
|
|
BOOL CMipModel::CreateMipModel_t(INDEX ctVerticesToRemove, INDEX iSurfacePreservingFactor)
|
|
{
|
|
if( ctVerticesToRemove>mm_amvVertices.Count()) return FALSE;
|
|
|
|
for( INDEX ctRemoved = 0; ctRemoved<ctVerticesToRemove; ctRemoved++)
|
|
{
|
|
INDEX ctVerticesWithOneSurface = FindSurfacesForVertices();
|
|
|
|
// setup flag for preserving surfaces
|
|
_bPreserveSurfaces = TRUE;
|
|
if( (ctVerticesWithOneSurface == 0) ||
|
|
(( ((FLOAT)ctVerticesWithOneSurface) / mm_amvVertices.Count())*100 <=
|
|
(100-iSurfacePreservingFactor)) )
|
|
{
|
|
_bPreserveSurfaces = FALSE;
|
|
}
|
|
|
|
CMipVertex *pmvBestSource, *pmvBestTarget;
|
|
FindBestVertexPair( pmvBestSource, pmvBestTarget);
|
|
JoinVertexPair( pmvBestSource, pmvBestTarget);
|
|
RemoveUnusedVertices();
|
|
if( mm_amvVertices.Count() == 0) return FALSE;
|
|
}
|
|
return TRUE;
|
|
}
|