cbspbrush_t * CompileCBspbrushClass( hobj_t *brush, hmanager_t *planehm, hmanager_t *texdefhm )
{
int i;
cbspbrush_t *bb;
hobj_search_iterator_t surfiter;
hobj_t *surface;
hobj_t *plane;
hobj_t *texdef;
hpair_t *pair;
InitClassSearchIterator( &surfiter, brush, "surface" );
for ( i = 0; ( surface = SearchGetNextClass( &surfiter ) ); i++ )
{ }
bb = NewBrush( i );
bb->surfacenum = i;
pair = FindHPair( brush, "content" );
if ( !pair )
Error( "missing 'contents' in brush '%s'.\n", brush->name );
HPairCastToInt_safe( &bb->contents, pair );
InitClassSearchIterator( &surfiter, brush, "surface" );
for ( i = 0; ( surface = SearchGetNextClass( &surfiter ) ); i++ )
{
// contents
pair = FindHPair( surface, "content" );
if ( !pair )
Error( "missing 'content' in surface '%s'.\n", surface->name );
HPairCastToInt( &bb->surfaces[i].contents, pair );
// clsref plane
pair = FindHPair( surface, "plane" );
if ( !pair )
Error( "missing 'plane' in surface '%s'.\n", surface->name );
plane = HManagerSearchClassName( planehm, pair->value );
bb->surfaces[i].pl = GetClassExtra( plane );
// clsref texdef
pair = FindHPair( surface, "texdef" );
if ( !texdefhm || !pair )
{
bb->surfaces[i].td = NULL;
}
else
{
texdef = HManagerSearchClassName( texdefhm, pair->value );
bb->surfaces[i].td = GetClassExtra( texdef );
}
bb->original = brush;
SetClassExtra( brush, bb );
}
return bb;
}
bool DEntity::LoadFromPrt( char *filename ){
CPortals portals;
strcpy( portals.fn, filename );
portals.Load();
if ( portals.node_count == 0 ) {
return false;
}
ClearBrushes();
ClearEPairs();
bool build = false;
for ( unsigned int i = 0; i < portals.node_count; i++ )
{
build = false;
DBrush* brush = NewBrush();
for ( unsigned int j = 0; j < portals.node[i].portal_count; j++ )
{
for ( unsigned int k = 0; k < portals.node[i].portal[j].point_count - 2; k++ )
{
vec3_t v1{}, v2{}, normal{}, n{};
VectorSubtract( portals.node[i].portal[j].point[k + 2].p, portals.node[i].portal[j].point[k + 1].p, v1 );
VectorSubtract( portals.node[i].portal[j].point[k].p, portals.node[i].portal[j].point[k + 1].p, v2 );
CrossProduct( v1, v2, n );
VectorNormalize( n, v2 );
if ( k == 0 ) {
VectorCopy( v2, normal );
}
else
{
VectorSubtract( v2, normal, v1 );
if ( VectorLength( v1 ) > 0.01 ) {
build = true;
break;
}
}
}
if ( !build ) {
brush->AddFace( portals.node[i].portal[j].point[2].p, portals.node[i].portal[j].point[1].p, portals.node[i].portal[j].point[0].p, "textures/common/caulk", false );
}
else{
brush->AddFace( portals.node[i].portal[j].point[0].p, portals.node[i].portal[j].point[1].p, portals.node[i].portal[j].point[2].p, "textures/common/caulk", false );
}
}
if ( build ) {
brush->BuildInRadiant( false, NULL );
}
}
return true;
}
void CChartPointsSerie::Draw(CDC *pDC)
{
if (!m_bIsVisible)
return;
CBrush NewBrush(m_ObjectColor);
CBrush* pOldBrush;
if (pDC->GetSafeHdc())
{
pDC->SetBkMode(TRANSPARENT);
//To have lines limited in the drawing rectangle :
pDC->IntersectClipRect(m_ObjectRect);
pOldBrush = pDC->SelectObject(&NewBrush);
//Draw all points that haven't been drawn yet
for (m_iLastDrawnPoint;m_iLastDrawnPoint<(int)m_vPoints.size();m_iLastDrawnPoint++)
{
CPoint ScreenPoint;
ValueToScreen(m_vPoints[m_iLastDrawnPoint].X,m_vPoints[m_iLastDrawnPoint].Y,ScreenPoint);
CRect PointRect;
PointRect.SetRect(ScreenPoint.x-m_iXPointSize/2,ScreenPoint.y-m_iYPointSize/2,ScreenPoint.x+m_iXPointSize/2,ScreenPoint.y+m_iYPointSize/2);
switch(m_iPointType)
{
case ptEllipse:
pDC->Ellipse(PointRect);
break;
case ptRectangle:
pDC->Rectangle(PointRect);
break;
case ptTriangle:
{
CPoint TrPoints[3];
TrPoints[0].x = PointRect.left;
TrPoints[0].y = PointRect.bottom;
TrPoints[1].x = PointRect.right;
TrPoints[1].y = PointRect.bottom;
TrPoints[2].x = PointRect.left + (int)fabs((PointRect.left-PointRect.right)/2.0);
TrPoints[2].y = PointRect.top;
pDC->Polygon(TrPoints,3);
}
break;
}
}
pDC->SelectClipRgn(NULL);
pDC->SelectObject(pOldBrush);
}
}
int CChartPointsSerie::DrawLegend(CDC *pDC, CPoint UpperLeft, int BitmapWidth) const
{
if (m_strSerieName== _T(""))
return 0;
//Draw Text
int TextHeigh = pDC->GetTextExtent(m_strSerieName.c_str()).cy;
pDC->ExtTextOut(UpperLeft.x+BitmapWidth+6,UpperLeft.y,ETO_CLIPPED,NULL,m_strSerieName.c_str(),NULL);
CRect PointRect;
if (TextHeigh > m_iYPointSize)
{
int Offset = (TextHeigh - m_iYPointSize)/2;
PointRect.SetRect(UpperLeft.x+4,UpperLeft.y+Offset,UpperLeft.x+m_iXPointSize+4,UpperLeft.y+Offset+m_iYPointSize);
}
else
PointRect.SetRect(UpperLeft.x+4,UpperLeft.y,UpperLeft.x+m_iXPointSize+4,UpperLeft.y+m_iYPointSize);
CBrush NewBrush(m_ObjectColor);
CBrush* pOldBrush = pDC->SelectObject(&NewBrush);
switch(m_iPointType)
{
case ptEllipse:
pDC->Ellipse(PointRect);
break;
case ptRectangle:
pDC->Rectangle(PointRect);
break;
case ptTriangle:
{
CPoint TrPoints[3];
TrPoints[0].x = PointRect.left;
TrPoints[0].y = PointRect.bottom;
TrPoints[1].x = PointRect.right;
TrPoints[1].y = PointRect.bottom;
TrPoints[2].x = PointRect.left + (int)fabs((PointRect.left-PointRect.right)/2.0);
TrPoints[2].y = PointRect.top;
pDC->Polygon(TrPoints,3);
}
break;
}
pDC->SelectObject(pOldBrush);
if (TextHeigh>m_iYPointSize)
return TextHeigh;
else
return m_iYPointSize;
}
bool DEntity::LoadFromEntity( entity_t* ent, bool bLoadPatches ) {
ClearPatches();
ClearBrushes();
ClearEPairs();
QER_Entity = ent;
epair_t* epl = *g_EntityTable.m_pfnGetEntityKeyValList( QER_Entity );
LoadEPairList( epl );
bool keep = FALSE;
int i;
for ( i = 0; brushEntityList[i]; i++ )
{
if ( !stricmp( brushEntityList[i], m_Classname ) ) {
keep = TRUE;
break;
}
}
if ( !keep ) {
return FALSE;
}
int count = g_FuncTable.m_pfnAllocateEntityBrushHandles( QER_Entity );
for ( i = 0; i < count; i++ )
{
brush_t *brush = (brush_t*)g_FuncTable.m_pfnGetEntityBrushHandle( i );
if ( brush == NULL ) {
DoMessageBox( "GTKRadiant returned a NULL pointer, NOT a good sign", "WARNING!!!", MB_OK );
continue;
}
if ( brush->pPatch ) {
if ( bLoadPatches ) {
DPatch* loadPatch = NewPatch();
loadPatch->LoadFromBrush_t( brush );
}
}
else
{
DBrush* loadBrush = NewBrush( i );
loadBrush->LoadFromBrush_t( brush, TRUE );
}
}
g_FuncTable.m_pfnReleaseEntityBrushHandles();
return TRUE;
}
void CMagneticView::SolidRect(CDC* pDC, LPCRECT lpRect, COLORREF Colour)
{
CPen NewPen(PS_SOLID,1,Colour);
CPen* pOldPen = pDC->SelectObject(&NewPen);
CBrush NewBrush(Colour);
CBrush* pOldBrush = pDC->SelectObject(&NewBrush);
pDC->Rectangle(lpRect);
pDC->SelectObject(pOldPen);
pDC->SelectObject(pOldBrush);
}
//////////////////////////////////////////////////////////////////////////////
// CLogoMdi message handlers
BOOL CLogoMdi::OnEraseBkgnd(CDC* pDC)
{
// This is where the real work is done printing the logo in the corner..
RECT rect,m_rDataBox;
GetClientRect(&rect);
CopyRect(&m_rDataBox,&rect);
if (bgImage==NULL){
CBrush NewBrush(GetSysColor(COLOR_DESKTOP)) ;
pDC->SetBrushOrg(0,0) ;
CBrush* pOldBrush = (CBrush*)pDC->SelectObject(&NewBrush);
pDC->PatBlt(rect.left, rect.top, rect.right-rect.left, rect.bottom-rect.top ,PATCOPY);
pDC->SelectObject(pOldBrush);
} else {
bgImage->Tile(pDC->GetSafeHdc(),&rect);
}
TEXTMETRIC tm;
pDC->GetTextMetrics(&tm);
CFont* oldFont = pDC->SelectObject(&m_LogoFont);
CSize sz = pDC->GetTextExtent(sLogoString, sLogoString.GetLength());
// GetTextExtent calculates the size of the displayed logo
// which depends on the device context....
// Calculate the box size by subtracting the text width and height from the
// window size. Also subtract 20% of the average character size to keep the
// logo from printing into the borders...
m_rDataBox.left = m_rDataBox.right - sz.cx - tm.tmAveCharWidth/2;
m_rDataBox.top = m_rDataBox.bottom - sz.cy - tm.tmHeight/5;
pDC->SetBkMode(TRANSPARENT);
// shift logo box right, and print black...
COLORREF oldColor = pDC->SetTextColor(RGB(0,0,0));
pDC->DrawText(sLogoString, sLogoString.GetLength(), &m_rDataBox, DT_VCENTER | DT_SINGLELINE | DT_CENTER);
// shift logo box left and print white
m_rDataBox.left -= 3*tm.tmAveCharWidth/5;
pDC->SetTextColor(RGB(255,255,255));
pDC->DrawText(sLogoString, sLogoString.GetLength(), &m_rDataBox, DT_VCENTER | DT_SINGLELINE | DT_CENTER);
// Restore original location and print in the button face color
m_rDataBox.left += tm.tmAveCharWidth/5;
pDC->SetTextColor(GetSysColor(COLOR_BTNFACE));
pDC->DrawText(sLogoString, sLogoString.GetLength(), &m_rDataBox, DT_VCENTER | DT_SINGLELINE | DT_CENTER);
// restore the original properties and release resources...
pDC->SelectObject(oldFont);
pDC->SetTextColor(oldColor);
return TRUE;
}
void CChartPointsSerie::DrawLegend(CDC *pDC, const CRect& rectBitmap) const
{
if (m_strSerieName== _T(""))
return;
CRect PointRect(0,0,m_iXPointSize,m_iYPointSize);
if ( (rectBitmap.Height()>m_iYPointSize) && (rectBitmap.Width()>m_iXPointSize) )
{
int XOffset = rectBitmap.left + rectBitmap.Width()/2 - m_iXPointSize/2;
int YOffset = rectBitmap.top + rectBitmap.Height()/2 - m_iYPointSize/2;
PointRect.OffsetRect(XOffset,YOffset);
}
else
PointRect = rectBitmap;
CBrush NewBrush(m_SerieColor);
CBrush* pOldBrush = pDC->SelectObject(&NewBrush);
switch(m_iPointType)
{
case ptEllipse:
pDC->Ellipse(PointRect);
break;
case ptRectangle:
pDC->Rectangle(PointRect);
break;
case ptTriangle:
{
CPoint TrPoints[3];
TrPoints[0].x = PointRect.left;
TrPoints[0].y = PointRect.bottom;
TrPoints[1].x = PointRect.right;
TrPoints[1].y = PointRect.bottom;
TrPoints[2].x = PointRect.left + (int)fabs((PointRect.left-PointRect.right)/2.0);
TrPoints[2].y = PointRect.top;
pDC->Polygon(TrPoints,3);
}
break;
}
pDC->SelectObject(pOldBrush);
DeleteObject(NewBrush);
}
DBrush* DEntity::GetBrushForID( int ID ){
DBrush* buildBrush = NULL;
for ( std::list<DBrush *>::const_iterator chkBrush = brushList.begin(); chkBrush != brushList.end(); chkBrush++ )
{
if ( ( *chkBrush )->m_nBrushID == ID ) {
buildBrush = ( *chkBrush );
break;
}
}
if ( !buildBrush ) {
buildBrush = NewBrush( ID );
}
return buildBrush;
}
/*
====================
CopyBrush
====================
*/
cbspbrush_t * CopyBrush( cbspbrush_t *in )
{
int i;
int size;
cbspbrush_t *b;
size = (int)&(((cbspbrush_t *)0)->surfaces[in->surfacenum]);
b = NewBrush( in->surfacenum );
memcpy( b, in, size );
for ( i = 0; i < in->surfacenum; i++ )
{
if ( in->surfaces[i].p )
b->surfaces[i].p = CopyPolygon( in->surfaces[i].p );
}
return b;
}
void DEntity::LoadSelectedBrushes(){
ClearBrushes();
ClearEPairs();
int count = g_FuncTable.m_pfnAllocateSelectedBrushHandles();
for ( int i = 0; i < count; i++ ) {
brush_t *brush = (brush_t*)g_FuncTable.m_pfnGetSelectedBrushHandle( i );
if ( brush->pPatch ) {
continue;
}
DBrush* loadBrush = NewBrush( i );
loadBrush->LoadFromBrush_t( brush, TRUE );
}
g_FuncTable.m_pfnReleaseSelectedBrushHandles();
}
void CChartPointsSerie::Draw(CDC *pDC)
{
if (!m_bIsVisible)
return;
if (!pDC->GetSafeHdc())
return;
CBrush NewBrush(m_SerieColor);
CPen BorderPen(PS_SOLID, 1, m_colBorder);
CBrush ShadowBrush(m_ShadowColor);
CPen ShadowPen(PS_SOLID, 1, m_ShadowColor);
CPen* pOldPen = pDC->SelectObject(&BorderPen);
CBrush* pOldBrush = pDC->SelectObject(&NewBrush);
pDC->SetBkMode(TRANSPARENT);
//To have lines limited in the drawing rectangle :
pDC->IntersectClipRect(m_PlottingRect);
//Draw all points that haven't been drawn yet
for (m_uLastDrawnPoint;m_uLastDrawnPoint<(int)GetPointsCount();m_uLastDrawnPoint++)
{
SChartXYPoint Point = GetPoint(m_uLastDrawnPoint);
CPoint ScreenPoint;
ValueToScreen(Point.X, Point.Y, ScreenPoint);
CRect PointRect;
PointRect.SetRect(ScreenPoint.x-m_iXPointSize/2,ScreenPoint.y-m_iYPointSize/2,ScreenPoint.x+m_iXPointSize/2,ScreenPoint.y+m_iYPointSize/2);
CRect ShadowRect = PointRect + CSize(m_iShadowDepth,m_iShadowDepth);
switch(m_iPointType)
{
case ptEllipse:
if (m_bShadow)
{
pOldPen = pDC->SelectObject(&ShadowPen);
pDC->SelectObject(&ShadowBrush);
pDC->Ellipse(ShadowRect);
pDC->SelectObject(&NewBrush);
pDC->SelectObject(&BorderPen);
}
pDC->Ellipse(PointRect);
break;
case ptRectangle:
if (m_bShadow)
{
pOldPen = pDC->SelectObject(&ShadowPen);
pDC->SelectObject(&ShadowBrush);
pDC->Rectangle(ShadowRect);
pDC->SelectObject(&NewBrush);
pDC->SelectObject(&BorderPen);
}
pDC->Rectangle(PointRect);
break;
case ptTriangle:
{
CPoint TrPoints[3];
TrPoints[0].x = PointRect.left;
TrPoints[0].y = PointRect.bottom;
TrPoints[1].x = PointRect.right;
TrPoints[1].y = PointRect.bottom;
TrPoints[2].x = PointRect.left + (int)fabs((PointRect.left-PointRect.right)/2.0);
TrPoints[2].y = PointRect.top;
if (m_bShadow)
{
CPoint ShadowPoints[3];
for (int i=0;i<3;i++)
{
ShadowPoints[i] = TrPoints[i] + CSize(m_iShadowDepth,m_iShadowDepth);
}
pOldPen = pDC->SelectObject(&ShadowPen);
pDC->SelectObject(&ShadowBrush);
pDC->Polygon(ShadowPoints,3);
pDC->SelectObject(&NewBrush);
pDC->SelectObject(&BorderPen);
}
pDC->Polygon(TrPoints,3);
}
break;
}
}
pDC->SelectClipRgn(NULL);
pDC->SelectObject(pOldPen);
pDC->SelectObject(pOldBrush);
DeleteObject(BorderPen);
DeleteObject(NewBrush);
DeleteObject(ShadowBrush);
DeleteObject(ShadowPen);
}
void CChartPointsSerie::DrawAll(CDC *pDC)
{
if (!m_bIsVisible)
return;
CBrush NewBrush(m_ObjectColor);
CBrush ShadowBrush(m_ShadowColor);
CPen ShadowPen(PS_SOLID,1,m_ShadowColor);
CPen* pOldPen;
CBrush* pOldBrush;
int iFirst=0, iLast=0;
GetVisiblePoints(iFirst,iLast);
if (pDC->GetSafeHdc())
{
pDC->SetBkMode(TRANSPARENT);
//To have lines limited in the drawing rectangle :
pDC->IntersectClipRect(m_ObjectRect);
pOldBrush = pDC->SelectObject(&NewBrush);
for (m_iLastDrawnPoint=iFirst;m_iLastDrawnPoint<=iLast;m_iLastDrawnPoint++)
{
CPoint ScreenPoint;
ValueToScreen(m_vPoints[m_iLastDrawnPoint].X,m_vPoints[m_iLastDrawnPoint].Y,ScreenPoint);
CRect PointRect;
PointRect.SetRect(ScreenPoint.x-m_iXPointSize/2,ScreenPoint.y-m_iYPointSize/2,ScreenPoint.x+m_iXPointSize/2,ScreenPoint.y+m_iYPointSize/2);
CRect ShadowRect = PointRect + CSize(m_iShadowDepth,m_iShadowDepth);
switch(m_iPointType)
{
case ptEllipse:
if (m_bShadow)
{
pOldPen = pDC->SelectObject(&ShadowPen);
pDC->SelectObject(&ShadowBrush);
pDC->Ellipse(ShadowRect);
pDC->SelectObject(&NewBrush);
pDC->SelectObject(pOldPen);
}
pDC->Ellipse(PointRect);
break;
case ptRectangle:
if (m_bShadow)
{
pOldPen = pDC->SelectObject(&ShadowPen);
pDC->SelectObject(&ShadowBrush);
pDC->Rectangle(ShadowRect);
pDC->SelectObject(&NewBrush);
pDC->SelectObject(pOldPen);
}
pDC->Rectangle(PointRect);
break;
case ptTriangle:
{
CPoint TrPoints[3];
TrPoints[0].x = PointRect.left;
TrPoints[0].y = PointRect.bottom;
TrPoints[1].x = PointRect.right;
TrPoints[1].y = PointRect.bottom;
TrPoints[2].x = PointRect.left + (int)fabs((PointRect.left-PointRect.right)/2.0);
TrPoints[2].y = PointRect.top;
if (m_bShadow)
{
CPoint ShadowPoints[3];
for (int i=0;i<3;i++)
{
ShadowPoints[i] = TrPoints[i] + CSize(m_iShadowDepth,m_iShadowDepth);
}
pOldPen = pDC->SelectObject(&ShadowPen);
pDC->SelectObject(&ShadowBrush);
pDC->Polygon(ShadowPoints,3);
pDC->SelectObject(&NewBrush);
pDC->SelectObject(pOldPen);
}
pDC->Polygon(TrPoints,3);
}
break;
}
}
pDC->SelectClipRgn(NULL);
pDC->SelectObject(pOldBrush);
DeleteObject(NewBrush);
}
}
void CChartGradient::DrawGradient(CDC* pDC, const CRect& GradientRect, COLORREF Color1,
COLORREF Color2, EGradientType GradientType)
{
#if _MFC_VER > 0x0600
if ( (GradientType == gtHorizontal) || (GradientType == gtVertical) )
{
TRIVERTEX vertex[2] ;
vertex[0].x = GradientRect.left;
vertex[0].y = GradientRect.top;
vertex[0].Red = ((COLOR16)GetRValue(Color1))<<8;
vertex[0].Green = ((COLOR16)GetGValue(Color1))<<8;
vertex[0].Blue = ((COLOR16)GetBValue(Color1))<<8;
vertex[0].Alpha = 0x0000;
vertex[1].x = GradientRect.right;
vertex[1].y = GradientRect.bottom;
vertex[1].Red = ((COLOR16)GetRValue(Color2))<<8;
vertex[1].Green = ((COLOR16)GetGValue(Color2))<<8;
vertex[1].Blue = ((COLOR16)GetBValue(Color2))<<8;
vertex[1].Alpha = 0x0000;
GRADIENT_RECT gRect;
gRect.UpperLeft = 0;
gRect.LowerRight = 1;
if (GradientType == gtHorizontal)
pDC->GradientFill(vertex,2,&gRect,1,GRADIENT_FILL_RECT_H);
else
pDC->GradientFill(vertex,2,&gRect,1,GRADIENT_FILL_RECT_V);
}
else
{
for (int i=0;i<2; i++)
{
TRIVERTEX vertex[2] ;
if (GradientType == gtHorizontalDouble)
{
vertex[0].x = GradientRect.left + (GradientRect.Width()/2) * i;
vertex[0].y = GradientRect.top;
}
else
{
vertex[0].x = GradientRect.left;
vertex[0].y = GradientRect.top + (GradientRect.Height()/2) * i;
}
if (i==0)
{
vertex[0].Red = ((COLOR16)GetRValue(Color1))<<8;
vertex[0].Green = ((COLOR16)GetGValue(Color1))<<8;
vertex[0].Blue = ((COLOR16)GetBValue(Color1))<<8;
}
else
{
vertex[0].Red = ((COLOR16)GetRValue(Color2))<<8;
vertex[0].Green = ((COLOR16)GetGValue(Color2))<<8;
vertex[0].Blue = ((COLOR16)GetBValue(Color2))<<8;
}
vertex[0].Alpha = 0x0000;
if (GradientType == gtHorizontalDouble)
{
vertex[1].x = GradientRect.left + (GradientRect.Width()/2) * (i+1);
vertex[1].y = GradientRect.bottom;
}
else
{
vertex[1].x = GradientRect.right;
vertex[1].y = GradientRect.top + (GradientRect.Height()/2) * (i+1);
}
if (i==0)
{
vertex[1].Red = ((COLOR16)GetRValue(Color2))<<8;
vertex[1].Green = ((COLOR16)GetGValue(Color2))<<8;
vertex[1].Blue = ((COLOR16)GetBValue(Color2))<<8;
}
else
{
vertex[1].Red = ((COLOR16)GetRValue(Color1))<<8;
vertex[1].Green = ((COLOR16)GetGValue(Color1))<<8;
vertex[1].Blue = ((COLOR16)GetBValue(Color1))<<8;
}
vertex[1].Alpha = 0x0000;
GRADIENT_RECT gRect;
gRect.UpperLeft = 0;
gRect.LowerRight = 1;
if (GradientType == gtHorizontalDouble)
pDC->GradientFill(vertex,2,&gRect,1,GRADIENT_FILL_RECT_H);
else
pDC->GradientFill(vertex,2,&gRect,1,GRADIENT_FILL_RECT_V);
}
}
#else
CBrush NewBrush(Color1);
pDC->FillRect(GradientRect,&NewBrush);
DeleteObject(NewBrush);
#endif
}
void CSG_SplitBrush_new( cbspbrush_t *in, cplane_t *plane, cbspbrush_t **front, cbspbrush_t **back )
{
int i;
int exact;
polygon_t *splitpoly;
cbspbrush_t *b, *f;
*front = *back = NULL;
//
// split plane part of brush ?
//
exact = CSG_IsExactOnPlane( in, plane );
if ( exact == BRUSH_BACK_ON )
{
*back = CopyBrush( in );
return;
}
if ( exact == BRUSH_FRONT_ON )
{
*front = CopyBrush( in );
return;
}
//
// real check
//
splitpoly = BasePolygonForPlane( plane->norm, plane->dist );
for ( i = 0; i < in->surfacenum; i++ )
{
ClipPolygonInPlace( &splitpoly, in->surfaces[i].pl->norm, in->surfaces[i].pl->dist );
if ( !splitpoly )
break;
}
if ( !splitpoly )
{
// no splitpoly => brush is not split by plane
// determine on which side of plane is the complete brush
int check = -1;
for ( i = 0; i < in->surfacenum; i++ )
{
if ( !in->surfaces[i].p )
continue;
check = CheckPolygonWithPlane( in->surfaces[i].p, plane->norm, plane->dist );
if ( check == POLY_BACK )
break;
else if ( check == POLY_FRONT )
break;
else if ( check == POLY_ON )
continue;
printf( "?" );
}
if ( check == POLY_BACK )
{
*back = CopyBrush( in );
return;
}
else if ( check == POLY_FRONT )
{
*front = CopyBrush( in );
return;
}
else
{
printf( "can't get planeside of brush.\n" );
*front = NULL;
*back = NULL;
return;
}
}
//
// split input brush
//
f = NewBrush( in->surfacenum + 2 );
b = NewBrush( in->surfacenum + 2 );
f->surfacenum = b->surfacenum = 0;
f->original = in->original;
b->original = in->original;
f->contents = in->contents;
b->contents = in->contents;
for( i = 0; i < in->surfacenum; i++ )
{
polygon_t *fpoly, *bpoly;
SplitPolygon( in->surfaces[i].p, plane->norm, plane->dist, &fpoly, &bpoly );
if ( fpoly )
{
// add polygon to front brush and copy the rest
if ( f->surfacenum == in->surfacenum + 2 )
Error( "reached max surfs\n" );
memcpy( &f->surfaces[f->surfacenum], &in->surfaces[i], sizeof( csurface_t ) );
f->surfaces[f->surfacenum].p = fpoly;
f->surfacenum++;
}
if ( bpoly )
{
// add polygon to back brush and copy the rest
if ( b->surfacenum == in->surfacenum + 2 )
Error( "reached max surfs\n" );
memcpy( &b->surfaces[b->surfacenum], &in->surfaces[i], sizeof( csurface_t ) );
b->surfaces[b->surfacenum].p = bpoly;
b->surfacenum++;
}
}
//
// add split plane to front and back brush
//
// the backside brush gets the plane
if ( f->surfacenum == in->surfacenum + 2 )
Error( "reached max surfs\n" );
b->surfaces[b->surfacenum].pl = plane;
b->surfaces[b->surfacenum].td = NULL;
b->surfaces[b->surfacenum].state = SURFACE_STATE_BYSPLIT;
b->surfaces[b->surfacenum].contents = 0;
b->surfaces[b->surfacenum].p = splitpoly;
b->surfacenum++;
// the frontside brush gets the flipplane
if ( b->surfacenum == in->surfacenum + 2 )
Error( "reached max surfs\n" );
f->surfaces[f->surfacenum].pl = plane->flipplane;
f->surfaces[f->surfacenum].td = NULL;
f->surfaces[f->surfacenum].state = SURFACE_STATE_BYSPLIT;
f->surfaces[f->surfacenum].contents = 0;
f->surfaces[f->surfacenum].p = PolygonFlip( splitpoly );
f->surfacenum++;
if ( b->surfacenum < 4 )
{
printf( "no back %d\n", b->surfacenum );
FreeBrush( b );
b = NULL;
}
if ( f->surfacenum < 4 )
{
printf( "no front %d\n", f->surfacenum );
FreeBrush( f );
f = NULL;
}
if ( b )
CalcBrushBounds( b );
if ( f )
CalcBrushBounds( f );
*back = b;
*front = f;
}