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BrushTemplate.cpp
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/****************************************************************************************/
/* BrushTemplate.c */
/* */
/* Author: Jim Mischel, Ken Baird, Jeff Lomax, John Pollard, John Moore */
/* Description: Geometric generation of template brushes */
/* */
/* The contents of this file are subject to the Genesis3D Public License */
/* Version 1.01 (the "License"); you may not use this file except in */
/* compliance with the License. You may obtain a copy of the License at */
/* http://www.genesis3d.com */
/* */
/* Software distributed under the License is distributed on an "AS IS" */
/* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See */
/* the License for the specific language governing rights and limitations */
/* under the License. */
/* */
/* The Original Code is Genesis3D, released March 25, 1999. */
/* Genesis3D Version 1.1 released November 15, 1999 */
/* Copyright (C) 1999 WildTangent, Inc. All Rights Reserved */
/* */
/****************************************************************************************/
#include "BrushTemplate.h"
#include "units.h"
#include "facelist.h"
#include "ram.h"
Brush *BrushTemplate_CreateArch (const BrushTemplate_Arch *pTemplate)
{
Brush *b, *b2;
BrushList *MBList =BrushList_Create();
FaceList *fl;
Face *f;
geVec3d FaceVerts[4];
int i, NumSlits =pTemplate->NumSlits;
// changed QD 11/03
int NumCrossSections =NumSlits;
geFloat Height =pTemplate->Height;
geFloat HeightDelta =0;
int NumSides =pTemplate->Sides;
geFloat Radius2 =pTemplate->Radius2;
int CW =pTemplate->CW;
geBoolean Steps =pTemplate->Steps;
geBoolean Massive =pTemplate->Massive;
// end change
geFloat Thickness =pTemplate->Thickness;
geFloat Width =pTemplate->Width;
geFloat InnerRadius =pTemplate->Radius;
// geFloat WallSize =pTemplate->WallSize;
double StartAngleDegrees =pTemplate->StartAngle;
double EndAngleDegrees =pTemplate->EndAngle;
double AngleDelta =0;
double CurAngle =0;
double StartAngle =Units_DegreesToRadians (StartAngleDegrees);
double EndAngle =Units_DegreesToRadians (EndAngleDegrees);
double Temp;
geVec3d TopInnerPoint;
geVec3d TopOuterPoint;
geVec3d FinalTopInnerPoint;
geVec3d FinalTopOuterPoint;
geVec3d FinalBottomInnerPoint;
geVec3d FinalBottomOuterPoint;
geVec3d OldTopInner;
geVec3d OldTopOuter;
geVec3d OldBottomInner;
geVec3d OldBottomOuter;
//If angles are equal, we have an empty shape...
if(StartAngle==EndAngle)
{
return NULL;
}
// Put the angles in order...
if(StartAngle > EndAngle)
{
Temp =StartAngle;
StartAngle =EndAngle;
EndAngle =Temp;
}
AngleDelta =(EndAngle - StartAngle)/(NumCrossSections); //changed QD 11/03
CurAngle =StartAngle + AngleDelta;
// changed QD 11/03
HeightDelta =Height/NumCrossSections;
if(CW)
HeightDelta=-HeightDelta;
////////////////
// Shape = Round
if(pTemplate->Shape>0)
{
int index, BottomCount;
geVec3d StartPoint, CurPoint;
geVec3d *CrossVerts, *OldVerts, *StartVerts;
double CurAngle2;
double AngleDelta2Degrees = 360.0f/(geFloat)NumSides;
double AngleDelta2 = Units_DegreesToRadians (AngleDelta2Degrees);
geVec3d_Set (&StartPoint, -(geFloat)Radius2, 0.0, 0.0);
CurPoint =StartPoint;
CrossVerts =(geVec3d *)geRam_Allocate(sizeof(geVec3d)*NumSides);
OldVerts =(geVec3d *)geRam_Allocate(sizeof(geVec3d)*NumSides);
StartVerts =(geVec3d *)geRam_Allocate(sizeof(geVec3d)*NumSides);
StartVerts[0]=CurPoint;
StartVerts[0].X+=InnerRadius+Radius2;
OldVerts[0] = StartVerts[0];
CurAngle2 = BottomCount = 0;
for( index = 1; index < NumSides; index++ )
{
// Rotate around to create our successive points...
CurAngle2 += AngleDelta2;
geVec3d_Set
(
&CurPoint,
(geFloat)((StartPoint.X * cos(CurAngle2)) + (StartPoint.Z * sin(CurAngle2))),
StartPoint.Y,
(geFloat)((StartPoint.Z * cos(CurAngle2)) - (StartPoint.X * sin(CurAngle2)))
);
CurPoint.X+=InnerRadius+Radius2;
geVec3d_Set
(
&(StartVerts[index]),
(geFloat)((CurPoint.X * cos(StartAngle)) - (CurPoint.Y * sin(StartAngle))),
(geFloat)((CurPoint.X * sin(StartAngle)) + (CurPoint.Y * cos(StartAngle))),
CurPoint.Z
);
OldVerts[index]=StartVerts[index];
}
for(i=0;i < NumCrossSections;i++) //changed QD 11/03
{
for(index=0;index<NumSides;index++)
{
geVec3d_Set
(
&(CrossVerts[index]),
(geFloat)((StartVerts[index].X * cos(CurAngle)) - (StartVerts[index].Y * sin(CurAngle))),
(geFloat)((StartVerts[index].X * sin(CurAngle)) + (StartVerts[index].Y * cos(CurAngle))),
StartVerts[index].Z+(i+1)*HeightDelta
);
}
CurAngle += AngleDelta;
fl =FaceList_Create(NumSides+2);
// Sides ...
for(index=1;index<NumSides-1;index++)
{
// geVec3d FaceVerts2[3];
FaceVerts[0] = CrossVerts[index];//FinalTopInnerPoint;
FaceVerts[1] = CrossVerts[index+1];//FinalTopOuterPoint;
FaceVerts[2] = OldVerts[index+1];
FaceVerts[3] = OldVerts[index];
f = Face_Create(4, FaceVerts, 0);
if(f)
{
FaceList_AddFace(fl, f);
}
/* FaceVerts2[0] = CrossVerts[index];//FinalTopInnerPoint;
//FaceVerts2[1] = CrossVerts[index+1];//FinalTopOuterPoint;
FaceVerts2[1] = OldVerts[index+1];
FaceVerts2[2] = OldVerts[index];
f = Face_Create(3, FaceVerts2, 0);
if(f)
{
FaceList_AddFace(fl, f);
}*/
}
//first side, last side are triangles if radius=0
if(InnerRadius>0.0f)
{
//first side
// geVec3d FaceVerts2[3];
FaceVerts[0] = CrossVerts[0];
FaceVerts[1] = CrossVerts[1];
FaceVerts[2] = OldVerts[1];
FaceVerts[3] = OldVerts[0];
f = Face_Create(4, FaceVerts, 0);
if(f)
{
FaceList_AddFace(fl, f);
}
/* FaceVerts2[0] = CrossVerts[0];
//FaceVerts2[1] = CrossVerts[1];
FaceVerts2[1] = OldVerts[1];
FaceVerts2[2] = OldVerts[0];
f = Face_Create(3, FaceVerts2, 0);
if(f)
{
FaceList_AddFace(fl, f);
}*/
//last side
FaceVerts[0] = CrossVerts[NumSides-1];
FaceVerts[1] = CrossVerts[0];
FaceVerts[2] = OldVerts[0];
FaceVerts[3] = OldVerts[NumSides-1];
f = Face_Create(4, FaceVerts, 0);
if(f)
{
FaceList_AddFace(fl, f);
}
/* FaceVerts2[0] = CrossVerts[NumSides-1];
//FaceVerts2[1] = CrossVerts[0];
FaceVerts2[1] = OldVerts[0];
FaceVerts2[2] = OldVerts[NumSides-1];
f = Face_Create(3, FaceVerts2, 0);
if(f)
{
FaceList_AddFace(fl, f);
}*/
}
else
{
geVec3d FaceVerts2[3];
FaceVerts2[0] = CrossVerts[0];
FaceVerts2[1] = CrossVerts[1];
FaceVerts2[2] = OldVerts[1];
f = Face_Create(3, FaceVerts2, 0);
if(f)
{
FaceList_AddFace(fl, f);
}
FaceVerts2[0] = CrossVerts[NumSides-1];
FaceVerts2[1] = CrossVerts[0];
FaceVerts2[2] = OldVerts[NumSides-1];
f = Face_Create(3, FaceVerts2, 0);
if(f)
{
FaceList_AddFace(fl, f);
}
}
//make the end faces
f = Face_Create(NumSides, OldVerts, 0);
if(f)
{
if(pTemplate->Style < 2) //default to hollow (if they make hollow later)
{
if(i)
{
Face_SetFixedHull(f, GE_TRUE);
}
}
else
{
Face_SetFixedHull(f, GE_TRUE);
}
FaceList_AddFace(fl, f);
}
//need reverse order for the other end
for(index=0;index<NumSides;index++)
OldVerts[NumSides-index-1] = CrossVerts[index];
f = Face_Create(NumSides, OldVerts, 0);
if(f)
{
if(pTemplate->Style < 2) //default to hollow (if they make hollow later)
{
if(i < (NumCrossSections-1))//changed QD
{
Face_SetFixedHull(f, GE_TRUE);
}
}
else
{
Face_SetFixedHull(f, GE_TRUE);
}
FaceList_AddFace(fl, f);
}
if(!pTemplate->Style)
{
b2 =Brush_Create(BRUSH_LEAF, fl, NULL);
if(b2)
{
Brush_SetSubtract(b2, pTemplate->TCut);
}
BrushList_Append(MBList, b2);
}
else
{
BrushList *bl =BrushList_Create();
Brush *bh, *bm;
b2 =Brush_Create(BRUSH_LEAF, fl, NULL);
if(b2)
{
Brush_SetHollow(b2, GE_TRUE);
Brush_SetHullSize(b2, pTemplate->WallSize);
bh =Brush_CreateHollowFromBrush(b2);
if(bh)
{
Brush_SetHollowCut(bh, GE_TRUE);
BrushList_Append(bl, b2);
BrushList_Append(bl, bh);
bm =Brush_Create(BRUSH_MULTI, NULL, bl);
if(bm)
{
Brush_SetHollow(bm, GE_TRUE);
Brush_SetSubtract(bm, pTemplate->TCut);
Brush_SetHullSize(bm, pTemplate->WallSize);
BrushList_Append(MBList, bm);
}
}
else
{
Brush_Destroy(&b2);
BrushList_Destroy(&bl);
}
}
else
{
BrushList_Destroy(&bl);
}
}
// Set old points...
for(index=0;index<NumSides;index++)
OldVerts[index] = CrossVerts[index];
}
//free allocated verts
geRam_Free(StartVerts);
geRam_Free(OldVerts);
geRam_Free(CrossVerts);
}
//////////////////////
// Shape = Rectangular
else
{
// end change
geVec3d_Set(&TopInnerPoint, (geFloat)InnerRadius, 0.0, (geFloat)(Width / 2));
geVec3d_Set(&TopOuterPoint, (geFloat)(InnerRadius + Thickness), 0.0, (geFloat)(Width / 2));
// Create first cross section of 4 vertices ( outer face @ start angle)...
geVec3d_Set
(
&FinalTopInnerPoint,
(geFloat)(( TopInnerPoint.X * cos( StartAngle ) ) - ( TopInnerPoint.Y * sin( StartAngle ) )),
(geFloat)(( TopInnerPoint.X * sin( StartAngle ) ) + ( TopInnerPoint.Y * cos( StartAngle ) )),
TopInnerPoint.Z
);
geVec3d_Set
(
&FinalTopOuterPoint,
(geFloat)(( TopOuterPoint.X * cos( StartAngle ) ) - ( TopInnerPoint.Y * sin( StartAngle ) )),
(geFloat)(( TopOuterPoint.X * sin( StartAngle ) ) + ( TopInnerPoint.Y * cos( StartAngle ) )),
TopOuterPoint.Z
);
FinalBottomInnerPoint =FinalTopInnerPoint;
FinalBottomInnerPoint.Z =-FinalTopInnerPoint.Z;
FinalBottomOuterPoint =FinalTopOuterPoint;
FinalBottomOuterPoint.Z =-FinalTopOuterPoint.Z;
// changed QD 11/03
if(CW)
{
FinalTopInnerPoint.Z+=Height;
FinalTopOuterPoint.Z+=Height;
if(!Massive)
{
FinalBottomInnerPoint.Z+=Height;
FinalBottomOuterPoint.Z+=Height;
}
else if(Steps)
{
FinalBottomInnerPoint.Z-=HeightDelta;
FinalBottomOuterPoint.Z-=HeightDelta;
}
}
// end change
OldTopInner =FinalTopInnerPoint;
OldTopOuter =FinalTopOuterPoint;
OldBottomInner =FinalBottomInnerPoint;
OldBottomOuter =FinalBottomOuterPoint;
//Create the other cross sections and assign verts to polys after each...
for(i=0;i < NumCrossSections;i++) // changed QD 11/03
{
geVec3d_Set
(
&FinalTopInnerPoint,
(geFloat)(( TopInnerPoint.X * cos( CurAngle ) ) - ( TopInnerPoint.Y * sin( CurAngle ) )),
(geFloat)(( TopInnerPoint.X * sin( CurAngle ) ) + ( TopInnerPoint.Y * cos( CurAngle ) )),
TopInnerPoint.Z
);
geVec3d_Set
(
&FinalTopOuterPoint,
(geFloat)(( TopOuterPoint.X * cos( CurAngle ) ) - ( TopInnerPoint.Y * sin( CurAngle ) )),
(geFloat)(( TopOuterPoint.X * sin( CurAngle ) ) + ( TopInnerPoint.Y * cos( CurAngle ) )),
TopOuterPoint.Z
);
FinalBottomInnerPoint = FinalTopInnerPoint;
FinalBottomInnerPoint.Z = -FinalTopInnerPoint.Z;
// changed QD 11/03
if(CW)
{
if(!Massive)
FinalBottomInnerPoint.Z += Height;
else if(Steps)
FinalBottomInnerPoint.Z -= HeightDelta;
FinalTopInnerPoint.Z += Height;
}
if(!Steps)
{
if(!Massive)
FinalBottomInnerPoint.Z += ((i+1)*HeightDelta);
FinalTopInnerPoint.Z += ((i+1)*HeightDelta);
}
else if(i>0)
{
if(!Massive)
FinalBottomInnerPoint.Z += ((i)*HeightDelta);
FinalTopInnerPoint.Z += ((i)*HeightDelta);
}
// end change
FinalBottomOuterPoint = FinalTopOuterPoint;
FinalBottomOuterPoint.Z = -FinalTopOuterPoint.Z;
// changed QD 11/03
if(CW)
{
if(!Massive)
FinalBottomOuterPoint.Z +=Height;
else if(Steps)
FinalBottomOuterPoint.Z -=HeightDelta;
FinalTopOuterPoint.Z +=Height;
}
if(!Steps)
{
if(!Massive)
FinalBottomOuterPoint.Z +=((i+1)*HeightDelta);
FinalTopOuterPoint.Z += ((i+1)*HeightDelta);
}
else if(i>0)//Steps&&i>0)
{
if(!Massive)
FinalBottomOuterPoint.Z +=((i)*HeightDelta);
FinalTopOuterPoint.Z += ((i)*HeightDelta);
}
// end change
CurAngle += AngleDelta;
// changed QD 11/03
if(InnerRadius>0.0f)
{
if(Height>0.0f&&!Steps)
{
if(Massive)
fl =FaceList_Create(7);
else
fl =FaceList_Create(8);
}
else
{
fl =FaceList_Create(6);
}
}
else
{
if(Height>0.0f&&!Steps)
{
if(Massive)
fl =FaceList_Create(6);
else
fl =FaceList_Create(7);
}
else
{
fl =FaceList_Create(5);
}
}
//Assign points to the 4 outer poly faces...
//Top face...
if(Height>0.0f&&!Steps)
{
if(CW)
{
FaceVerts[0] =FinalTopInnerPoint;
FaceVerts[1] =FinalTopOuterPoint;
// FaceVerts[2] =OldTopOuter;
FaceVerts[2] =OldTopInner;
f =Face_Create(3, FaceVerts, 0);
if(f)
{
FaceList_AddFace(fl, f);
}
//FaceVerts[0] =FinalTopInnerPoint;
FaceVerts[0] =FinalTopOuterPoint;
FaceVerts[1] =OldTopOuter;
FaceVerts[2] =OldTopInner;
f =Face_Create(3, FaceVerts, 0);
if(f)
{
FaceList_AddFace(fl, f);
}
}
else
{
FaceVerts[0] =FinalTopInnerPoint;
FaceVerts[1] =FinalTopOuterPoint;
FaceVerts[2] =OldTopOuter;
// FaceVerts[2] =OldTopInner;
f =Face_Create(3, FaceVerts, 0);
if(f)
{
FaceList_AddFace(fl, f);
}
FaceVerts[0] =FinalTopInnerPoint;
//FaceVerts[0] =FinalTopOuterPoint;
FaceVerts[1] =OldTopOuter;
FaceVerts[2] =OldTopInner;
f =Face_Create(3, FaceVerts, 0);
if(f)
{
FaceList_AddFace(fl, f);
}
}
}
else
{
if(InnerRadius>0.0f)
{
FaceVerts[0] =FinalTopInnerPoint;
FaceVerts[1] =FinalTopOuterPoint;
FaceVerts[2] =OldTopOuter;
FaceVerts[3] =OldTopInner;
f =Face_Create(4, FaceVerts, 0);
}
else
{
FaceVerts[0] =FinalTopInnerPoint;
FaceVerts[1] =FinalTopOuterPoint;
FaceVerts[2] =OldTopOuter;
//FaceVerts[3] =OldTopInner;
f =Face_Create(3, FaceVerts, 0);
}
if(f)
{
FaceList_AddFace(fl, f);
}
}
// Bottom face...
if(Height>0.0f&&!Steps&&!Massive)
{
if(CW)
{
FaceVerts[2] =FinalBottomInnerPoint;
FaceVerts[1] =FinalBottomOuterPoint;
FaceVerts[0] =OldBottomOuter;
//FaceVerts3[0] =OldBottomInner;
f =Face_Create(3, FaceVerts, 0);
if(f)
{
FaceList_AddFace(fl, f);
}
FaceVerts[2] =FinalBottomInnerPoint;
//FaceVerts[2] =FinalBottomOuterPoint;
FaceVerts[1] =OldBottomOuter;
FaceVerts[0] =OldBottomInner;
f =Face_Create(3, FaceVerts, 0);
if(f)
{
FaceList_AddFace(fl, f);
}
}
else
{
FaceVerts[2] =FinalBottomInnerPoint;
FaceVerts[1] =FinalBottomOuterPoint;
//FaceVerts[1] =OldBottomOuter;
FaceVerts[0] =OldBottomInner;
f =Face_Create(3, FaceVerts, 0);
if(f)
{
FaceList_AddFace(fl, f);
}
//FaceVerts[3] =FinalBottomInnerPoint;
FaceVerts[2] =FinalBottomOuterPoint;
FaceVerts[1] =OldBottomOuter;
FaceVerts[0] =OldBottomInner;
f =Face_Create(3, FaceVerts, 0);
if(f)
{
FaceList_AddFace(fl, f);
}
}
}
else
{
if(InnerRadius>0.0f)
{
FaceVerts[3] =FinalBottomInnerPoint;
FaceVerts[2] =FinalBottomOuterPoint;
FaceVerts[1] =OldBottomOuter;
FaceVerts[0] =OldBottomInner;
f =Face_Create(4, FaceVerts, 0);
}
else
{
FaceVerts[2] =FinalBottomInnerPoint;
FaceVerts[1] =FinalBottomOuterPoint;
FaceVerts[0] =OldBottomOuter;
//FaceVerts[3] =OldTopInner;
f =Face_Create(3, FaceVerts, 0);
}
if(f)
{
FaceList_AddFace(fl, f);
}
}
if(InnerRadius>0.0f)
{
// Inner side face...
FaceVerts[0] =FinalTopInnerPoint;
FaceVerts[1] =OldTopInner;
FaceVerts[2] =OldBottomInner;
FaceVerts[3] =FinalBottomInnerPoint;
f =Face_Create(4, FaceVerts, 0);
if(f)
{
FaceList_AddFace(fl, f);
}
}
// end change
// Outer side face...
FaceVerts[3] =FinalTopOuterPoint;
FaceVerts[2] =OldTopOuter;
FaceVerts[1] =OldBottomOuter;
FaceVerts[0] =FinalBottomOuterPoint;
f =Face_Create(4, FaceVerts, 0);
if(f)
{
FaceList_AddFace(fl, f);
}
//make the end faces
FaceVerts[0] =OldTopOuter;
FaceVerts[1] =OldBottomOuter;
FaceVerts[2] =OldBottomInner;
FaceVerts[3] =OldTopInner;
f =Face_Create(4, FaceVerts, 0);
if(f)
{
if(pTemplate->Style < 2) //default to hollow (if they make hollow later)
{
if(i)
{
Face_SetFixedHull(f, GE_TRUE);
}
}
else
{
Face_SetFixedHull(f, GE_TRUE);
}
FaceList_AddFace(fl, f);
}
FaceVerts[3] =FinalTopOuterPoint;
FaceVerts[2] =FinalBottomOuterPoint;
FaceVerts[1] =FinalBottomInnerPoint;
FaceVerts[0] =FinalTopInnerPoint;
f =Face_Create(4, FaceVerts, 0);
if(f)
{
if(pTemplate->Style < 2) //default to hollow (if they make hollow later)
{
if(i < (NumCrossSections-1)) // changed QD 11/03
{
Face_SetFixedHull(f, GE_TRUE);
}
}
else
{
Face_SetFixedHull(f, GE_TRUE);
}
FaceList_AddFace(fl, f);
}
if(!pTemplate->Style)
{
b2 =Brush_Create(BRUSH_LEAF, fl, NULL);
if(b2)
{
Brush_SetSubtract(b2, pTemplate->TCut);
}
BrushList_Append(MBList, b2);
}
else
{
BrushList *bl =BrushList_Create();
Brush *bh, *bm;
b2 =Brush_Create(BRUSH_LEAF, fl, NULL);
if(b2)
{
Brush_SetHollow(b2, GE_TRUE);
Brush_SetHullSize(b2, pTemplate->WallSize);
bh =Brush_CreateHollowFromBrush(b2);
if(bh)
{
Brush_SetHollowCut(bh, GE_TRUE);
BrushList_Append(bl, b2);
BrushList_Append(bl, bh);
bm =Brush_Create(BRUSH_MULTI, NULL, bl);
if(bm)
{
Brush_SetHollow(bm, GE_TRUE);
Brush_SetSubtract(bm, pTemplate->TCut);
Brush_SetHullSize(bm, pTemplate->WallSize);
BrushList_Append(MBList, bm);
}
}
else
{
Brush_Destroy(&b2);
BrushList_Destroy(&bl);
}
}
else
{
BrushList_Destroy(&bl);
}
}
// Set old points...
OldTopInner =FinalTopInnerPoint;
OldTopOuter =FinalTopOuterPoint;
OldBottomInner =FinalBottomInnerPoint;
OldBottomOuter =FinalBottomOuterPoint;
// changed QD 11/03
if(Steps)
{
OldTopInner.Z +=HeightDelta;
OldTopOuter.Z +=HeightDelta;
if(!Massive)
{
OldBottomInner.Z +=HeightDelta;
OldBottomOuter.Z +=HeightDelta;
}
}
// end change
}
}
b =Brush_Create(BRUSH_MULTI, NULL, MBList);
if(b)
{
Brush_SetSubtract(b, pTemplate->TCut);
}
return b;
}
Brush *BrushTemplate_CreateBox (const BrushTemplate_Box *pTemplate)
{
//revisit for error handling when merged
geVec3d Verts[8];
geVec3d FaceVerts[4];
FaceList *fl;
Face *f;
Brush *b;
fl =FaceList_Create(6);
// Vertices 0 to 3 are the 4 corners of the top face
geVec3d_Set (&Verts[0], (geFloat)-(pTemplate->XSizeTop/2), (geFloat)(pTemplate->YSize/2), (geFloat)-(pTemplate->ZSizeTop/2));
geVec3d_Set (&Verts[1], (geFloat)-(pTemplate->XSizeTop/2), (geFloat)(pTemplate->YSize/2), (geFloat)(pTemplate->ZSizeTop/2));
geVec3d_Set (&Verts[2], (geFloat)(pTemplate->XSizeTop/2), (geFloat)(pTemplate->YSize/2), (geFloat)(pTemplate->ZSizeTop/2));
geVec3d_Set (&Verts[3], (geFloat)(pTemplate->XSizeTop/2), (geFloat)(pTemplate->YSize/2), (geFloat)-(pTemplate->ZSizeTop/2));
// Vertices 4 to 7 are the 4 corners of the bottom face
geVec3d_Set (&Verts[4], (geFloat)-(pTemplate->XSizeBot/2), (geFloat)-(pTemplate->YSize/2), (geFloat)-(pTemplate->ZSizeBot/2));
geVec3d_Set (&Verts[5], (geFloat)(pTemplate->XSizeBot/2), (geFloat)-(pTemplate->YSize/2), (geFloat)-(pTemplate->ZSizeBot/2));
geVec3d_Set (&Verts[6], (geFloat)(pTemplate->XSizeBot/2), (geFloat)-(pTemplate->YSize/2), (geFloat)(pTemplate->ZSizeBot/2));
geVec3d_Set (&Verts[7], (geFloat)-(pTemplate->XSizeBot/2), (geFloat)-(pTemplate->YSize/2), (geFloat)(pTemplate->ZSizeBot/2));
// top face
FaceVerts[3] =Verts[0];
FaceVerts[2] =Verts[1];
FaceVerts[1] =Verts[2];
FaceVerts[0] =Verts[3];
f =Face_Create(4, FaceVerts, 0);
if(f)
{
FaceList_AddFace(fl, f);
}
// bottom face
FaceVerts[3] =Verts[4];
FaceVerts[2] =Verts[5];
FaceVerts[1] =Verts[6];
FaceVerts[0] =Verts[7];
f =Face_Create(4, FaceVerts, 0);
if(f)
{
FaceList_AddFace(fl, f);
}
FaceVerts[3] =Verts[1];
FaceVerts[2] =Verts[7];
FaceVerts[1] =Verts[6];
FaceVerts[0] =Verts[2];
f =Face_Create(4, FaceVerts, 0);
if(f)
{
FaceList_AddFace(fl, f);
}
FaceVerts[3] =Verts[0];
FaceVerts[2] =Verts[3];
FaceVerts[1] =Verts[5];
FaceVerts[0] =Verts[4];
f =Face_Create(4, FaceVerts, 0);
if(f)
{
FaceList_AddFace(fl, f);
}
FaceVerts[3] =Verts[0];
FaceVerts[2] =Verts[4];
FaceVerts[1] =Verts[7];
FaceVerts[0] =Verts[1];
f =Face_Create(4, FaceVerts, 0);
if(f)
{
FaceList_AddFace(fl, f);
}
FaceVerts[3] =Verts[3];
FaceVerts[2] =Verts[2];
FaceVerts[1] =Verts[6];
FaceVerts[0] =Verts[5];
f =Face_Create(4, FaceVerts, 0);
if(f)
{
FaceList_AddFace(fl, f);
}
if(!pTemplate->Solid)
{
b =Brush_Create(BRUSH_LEAF, fl, NULL);
if(b)
{
Brush_SetSubtract(b, pTemplate->TCut);
Brush_SetSheet (b, pTemplate->TSheet);
}
return b;
}
else
{
// hollow brush
BrushList *bl =BrushList_Create();
Brush *bh, *bm;
b =Brush_Create(BRUSH_LEAF, fl, NULL);
if(b)
{
Brush_SetHollow(b, GE_TRUE);
Brush_SetHullSize(b, (geFloat)pTemplate->Thickness);
bh =Brush_CreateHollowFromBrush(b);
if(bh)
{
Brush_SetHollowCut(bh, GE_TRUE);
BrushList_Append(bl, b);
BrushList_Append(bl, bh);
bm =Brush_Create(BRUSH_MULTI, NULL, bl);
if(bm)
{
Brush_SetHollow(bm, GE_TRUE);
Brush_SetSubtract(bm, pTemplate->TCut);
Brush_SetHullSize(bm, (geFloat)pTemplate->Thickness);
return bm;
}
}
else
{
Brush_Destroy(&b);
BrushList_Destroy(&bl);
}
}
else
{
BrushList_Destroy(&bl);
}
}
return NULL;
}
Brush *BrushTemplate_CreateCone (const BrushTemplate_Cone *pTemplate)
{
int index, BottomCount;
geVec3d StartPoint, CurPoint, OldPoint, OuterFocus;
geVec3d FaceVerts[3], *BottomVerts;
FaceList *fl;
Face *f;
Brush *b;
double CurAngle;
double AngleDeltaDegrees = 360.0f/(geFloat)pTemplate->VerticalStrips;
double AngleDelta = UNITS_DEGREES_TO_RADIANS (AngleDeltaDegrees);
fl =FaceList_Create(pTemplate->VerticalStrips + 1);
geVec3d_Set (&OuterFocus, 0, (geFloat)(pTemplate->Height/2), 0);
geVec3d_Set (&StartPoint, (geFloat)(pTemplate->Width/2), (geFloat)-(pTemplate->Height/2), 0);
CurPoint =OldPoint =StartPoint;
BottomVerts =(geVec3d *)geRam_Allocate (sizeof(geVec3d) * pTemplate->VerticalStrips);
BottomVerts[0] =CurPoint;
CurAngle =BottomCount =0;
for( index = 1; index < pTemplate->VerticalStrips; index++ )
{
// Rotate around to create our successive points...
CurAngle += AngleDelta;
geVec3d_Set
(
&CurPoint,
(geFloat)(( StartPoint.X * cos( CurAngle ) ) +( StartPoint.Z * sin( CurAngle ) )),
StartPoint.Y,
(geFloat)(( StartPoint.Z * cos( CurAngle ) ) -( StartPoint.X * sin( CurAngle ) ))
);
FaceVerts[2] =OuterFocus;
FaceVerts[1] =OldPoint;
FaceVerts[0] =CurPoint;
f =Face_Create(3, FaceVerts, 0);
FaceList_AddFace(fl, f);
OldPoint =CurPoint;
// Assign the current point to bottom plane...
BottomVerts[++BottomCount] =CurPoint;
}
// Create the final polygon...
CurAngle += AngleDelta;
geVec3d_Set