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657 lines
18 KiB
657 lines
18 KiB
//========= Copyright © 1996-2005, Valve Corporation, All rights reserved. ============//
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//
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// Purpose:
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//
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// $NoKeywords: $
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//=============================================================================//
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#include "stdafx.h"
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#include "OPTGeneral.h"
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#include "Options.h"
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#include "hammer_mathlib.h"
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#include "MapFace.h"
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#include "MapGroup.h"
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#include "MapSolid.h"
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#include "hammer.h"
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// memdbgon must be the last include file in a .cpp file!!!
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#include <tier0/memdbgon.h>
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//-----------------------------------------------------------------------------
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// Purpose: Create a segment using two polygons and a start and end position in
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// those polygons.
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// Input : fZMin -
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// fZMax -
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// fOuterPoints -
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// fInnerPoints -
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// iStart -
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// iEnd -
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// bCreateSouthFace -
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// Output :
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//-----------------------------------------------------------------------------
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static CMapSolid *CreateSegment(float fZMin, float fZMax, float fOuterPoints[][2], float fInnerPoints[][2], int iStart, int iEnd, BOOL bCreateSouthFace)
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{
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CMapFace Face;
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Vector points[4]; // all sides have four vertices
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CMapSolid *pSolid = new CMapSolid;
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int iNorthSouthPoints = 3 + (bCreateSouthFace ? 1 : 0);
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// create top face
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points[0][0] = fOuterPoints[iStart][0];
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points[0][1] = fOuterPoints[iStart][1];
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points[0][2] = fZMin;
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points[1][0] = fOuterPoints[iEnd][0];
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points[1][1] = fOuterPoints[iEnd][1];
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points[1][2] = fZMin;
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points[2][0] = fInnerPoints[iEnd][0];
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points[2][1] = fInnerPoints[iEnd][1];
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points[2][2] = fZMin;
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points[3][0] = fInnerPoints[iStart][0];
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points[3][1] = fInnerPoints[iStart][1];
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points[3][2] = fZMin;
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Face.CreateFace(points, iNorthSouthPoints);
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pSolid->AddFace(&Face);
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// bottom face - set other z value and reverse order
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for (int i = 0; i < 4; i++)
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{
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points[i][2] = fZMax;
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}
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Face.CreateFace(points, -iNorthSouthPoints);
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pSolid->AddFace(&Face);
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// left side
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points[0][0] = fOuterPoints[iStart][0];
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points[0][1] = fOuterPoints[iStart][1];
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points[0][2] = fZMax;
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points[1][0] = fOuterPoints[iStart][0];
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points[1][1] = fOuterPoints[iStart][1];
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points[1][2] = fZMin;
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points[2][0] = fInnerPoints[iStart][0];
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points[2][1] = fInnerPoints[iStart][1];
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points[2][2] = fZMin;
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points[3][0] = fInnerPoints[iStart][0];
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points[3][1] = fInnerPoints[iStart][1];
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points[3][2] = fZMax;
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Face.CreateFace(points, 4);
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pSolid->AddFace(&Face);
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// right side
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points[0][0] = fOuterPoints[iEnd][0];
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points[0][1] = fOuterPoints[iEnd][1];
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points[0][2] = fZMin;
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points[1][0] = fOuterPoints[iEnd][0];
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points[1][1] = fOuterPoints[iEnd][1];
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points[1][2] = fZMax;
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points[2][0] = fInnerPoints[iEnd][0];
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points[2][1] = fInnerPoints[iEnd][1];
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points[2][2] = fZMax;
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points[3][0] = fInnerPoints[iEnd][0];
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points[3][1] = fInnerPoints[iEnd][1];
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points[3][2] = fZMin;
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Face.CreateFace(points, 4);
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pSolid->AddFace(&Face);
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// north face
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points[0][0] = fOuterPoints[iEnd][0];
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points[0][1] = fOuterPoints[iEnd][1];
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points[0][2] = fZMin;
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points[1][0] = fOuterPoints[iStart][0];
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points[1][1] = fOuterPoints[iStart][1];
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points[1][2] = fZMin;
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points[2][0] = fOuterPoints[iStart][0];
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points[2][1] = fOuterPoints[iStart][1];
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points[2][2] = fZMax;
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points[3][0] = fOuterPoints[iEnd][0];
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points[3][1] = fOuterPoints[iEnd][1];
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points[3][2] = fZMax;
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Face.CreateFace(points, 4);
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pSolid->AddFace(&Face);
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// south face
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if (bCreateSouthFace)
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{
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points[0][0] = fInnerPoints[iStart][0];
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points[0][1] = fInnerPoints[iStart][1];
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points[0][2] = fZMin;
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points[1][0] = fInnerPoints[iEnd][0];
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points[1][1] = fInnerPoints[iEnd][1];
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points[1][2] = fZMin;
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points[2][0] = fInnerPoints[iEnd][0];
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points[2][1] = fInnerPoints[iEnd][1];
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points[2][2] = fZMax;
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points[3][0] = fInnerPoints[iStart][0];
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points[3][1] = fInnerPoints[iStart][1];
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points[3][2] = fZMax;
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Face.CreateFace(points, 4);
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pSolid->AddFace(&Face);
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}
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pSolid->InitializeTextureAxes(Options.GetTextureAlignment(), INIT_TEXTURE_ALL | INIT_TEXTURE_FORCE);
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return(pSolid);
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}
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//-----------------------------------------------------------------------------
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// Purpose: Create a segment using two polygons and a start and end position in
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// those polygons.
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// Input : fZMin -
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// fZMax -
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// fOuterPoints -
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// fInnerPoints -
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// iStart -
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// iEnd -
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// bCreateSouthFace -
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// Output :
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//-----------------------------------------------------------------------------
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static CMapSolid *CreateSegment(float fStartOuterPoints[][3], float fStartInnerPoints[][3],
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float fEndOuterPoints[][3], float fEndInnerPoints[][3],
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int iStart, int iEnd, BOOL bCreateSouthFace)
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{
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CMapFace Face;
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Vector points[4]; // all sides have four vertices
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CMapSolid *pSolid = new CMapSolid;
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// create top face
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points[0][0] = fStartOuterPoints[iStart][0];
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points[0][1] = fStartOuterPoints[iStart][1];
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points[0][2] = fStartOuterPoints[iStart][2];
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points[1][0] = fStartOuterPoints[iEnd][0];
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points[1][1] = fStartOuterPoints[iEnd][1];
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points[1][2] = fStartOuterPoints[iEnd][2];
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points[2][0] = fStartInnerPoints[iEnd][0];
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points[2][1] = fStartInnerPoints[iEnd][1];
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points[2][2] = fStartInnerPoints[iEnd][2];
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points[3][0] = fStartInnerPoints[iStart][0];
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points[3][1] = fStartInnerPoints[iStart][1];
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points[3][2] = fStartInnerPoints[iStart][2];
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Face.CreateFace(points, -4);
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pSolid->AddFace(&Face);
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// bottom face - set other z value and reverse order
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points[0][0] = fEndOuterPoints[iStart][0];
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points[0][1] = fEndOuterPoints[iStart][1];
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points[0][2] = fEndOuterPoints[iStart][2];
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points[1][0] = fEndOuterPoints[iEnd][0];
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points[1][1] = fEndOuterPoints[iEnd][1];
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points[1][2] = fEndOuterPoints[iEnd][2];
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points[2][0] = fEndInnerPoints[iEnd][0];
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points[2][1] = fEndInnerPoints[iEnd][1];
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points[2][2] = fEndInnerPoints[iEnd][2];
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points[3][0] = fEndInnerPoints[iStart][0];
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points[3][1] = fEndInnerPoints[iStart][1];
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points[3][2] = fEndInnerPoints[iStart][2];
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Face.CreateFace(points, 4);
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pSolid->AddFace(&Face);
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// left side
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points[0][0] = fEndOuterPoints[iStart][0];
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points[0][1] = fEndOuterPoints[iStart][1];
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points[0][2] = fEndOuterPoints[iStart][2];
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points[1][0] = fStartOuterPoints[iStart][0];
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points[1][1] = fStartOuterPoints[iStart][1];
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points[1][2] = fStartOuterPoints[iStart][2];
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points[2][0] = fStartInnerPoints[iStart][0];
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points[2][1] = fStartInnerPoints[iStart][1];
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points[2][2] = fStartInnerPoints[iStart][2];
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points[3][0] = fEndInnerPoints[iStart][0];
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points[3][1] = fEndInnerPoints[iStart][1];
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points[3][2] = fEndInnerPoints[iStart][2];
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Face.CreateFace(points, -4);
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pSolid->AddFace(&Face);
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// right side
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points[0][0] = fStartOuterPoints[iEnd][0];
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points[0][1] = fStartOuterPoints[iEnd][1];
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points[0][2] = fStartOuterPoints[iEnd][2];
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points[1][0] = fEndOuterPoints[iEnd][0];
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points[1][1] = fEndOuterPoints[iEnd][1];
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points[1][2] = fEndOuterPoints[iEnd][2];
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points[2][0] = fEndInnerPoints[iEnd][0];
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points[2][1] = fEndInnerPoints[iEnd][1];
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points[2][2] = fEndInnerPoints[iEnd][2];
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points[3][0] = fStartInnerPoints[iEnd][0];
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points[3][1] = fStartInnerPoints[iEnd][1];
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points[3][2] = fStartInnerPoints[iEnd][2];
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Face.CreateFace(points, -4);
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pSolid->AddFace(&Face);
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// north face
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points[0][0] = fStartOuterPoints[iEnd][0];
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points[0][1] = fStartOuterPoints[iEnd][1];
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points[0][2] = fStartOuterPoints[iEnd][2];
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points[1][0] = fStartOuterPoints[iStart][0];
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points[1][1] = fStartOuterPoints[iStart][1];
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points[1][2] = fStartOuterPoints[iStart][2];
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points[2][0] = fEndOuterPoints[iStart][0];
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points[2][1] = fEndOuterPoints[iStart][1];
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points[2][2] = fEndOuterPoints[iStart][2];
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points[3][0] = fEndOuterPoints[iEnd][0];
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points[3][1] = fEndOuterPoints[iEnd][1];
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points[3][2] = fEndOuterPoints[iEnd][2];
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Face.CreateFace(points, -4);
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pSolid->AddFace(&Face);
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// south face
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if (bCreateSouthFace)
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{
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points[0][0] = fStartInnerPoints[iStart][0];
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points[0][1] = fStartInnerPoints[iStart][1];
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points[0][2] = fStartInnerPoints[iStart][2];
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points[1][0] = fStartInnerPoints[iEnd][0];
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points[1][1] = fStartInnerPoints[iEnd][1];
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points[1][2] = fStartInnerPoints[iEnd][2];
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points[2][0] = fEndInnerPoints[iEnd][0];
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points[2][1] = fEndInnerPoints[iEnd][1];
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points[2][2] = fEndInnerPoints[iEnd][2];
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points[3][0] = fEndInnerPoints[iStart][0];
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points[3][1] = fEndInnerPoints[iStart][1];
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points[3][2] = fEndInnerPoints[iStart][2];
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Face.CreateFace(points, -4);
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pSolid->AddFace(&Face);
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}
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pSolid->InitializeTextureAxes(Options.GetTextureAlignment(), INIT_TEXTURE_ALL | INIT_TEXTURE_FORCE);
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return(pSolid);
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}
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//-----------------------------------------------------------------------------
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// Make a 2d arc
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//-----------------------------------------------------------------------------
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void MakeArcCenterRadius(float xCenter, float yCenter, float xrad, float yrad, int npoints, float start_ang, float fArc, float points[][2])
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{
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int point;
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float angle = start_ang;
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float angle_delta;
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angle_delta = fArc / (float)npoints;
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// Add an additional points if we are not doing a full circle
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if (fArc != 360.0)
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{
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++npoints;
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}
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for( point = 0; point < npoints; point++ )
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{
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if ( angle > 360 )
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{
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angle -= 360;
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}
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points[point][0] = rint(xCenter + (float)cos(DEG2RAD(angle)) * xrad);
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points[point][1] = rint(yCenter + (float)sin(DEG2RAD(angle)) * yrad);
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angle += angle_delta;
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}
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// Full circle, recopy the first point as the closing point.
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if (fArc == 360.0)
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{
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points[point][0] = points[0][0];
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points[point][1] = points[0][1];
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}
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}
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void MakeArc(float x1, float y1, float x2, float y2, int npoints, float start_ang, float fArc, float points[][2])
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{
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float xrad = (x2 - x1) / 2.0f;
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float yrad = (y2 - y1) / 2.0f;
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// make centerpoint for polygon:
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float xCenter = x1 + xrad;
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float yCenter = y1 + yrad;
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MakeArcCenterRadius( xCenter, yCenter, xrad, yrad, npoints, start_ang, fArc, points );
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}
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#define ARC_MAX_POINTS 4096
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//-----------------------------------------------------------------------------
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// Purpose:
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// Input : pBox -
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// fStartAngle -
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// iSides -
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// fArc -
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// iWallWidth -
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// iAddHeight -
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// bPreview -
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// Output : Returns a group containing the arch solids.
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//-----------------------------------------------------------------------------
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CMapClass *CreateArch(BoundBox *pBox, float fStartAngle, int iSides, float fArc, int iWallWidth, int iAddHeight, BOOL bPreview)
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{
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float fOuterPoints[ARC_MAX_POINTS][2];
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float fInnerPoints[ARC_MAX_POINTS][2];
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//
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// create outer points
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//
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MakeArc(pBox->bmins[AXIS_X], pBox->bmins[AXIS_Y],
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pBox->bmaxs[AXIS_X], pBox->bmaxs[AXIS_Y], iSides,
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fStartAngle, fArc, fOuterPoints);
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//
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// create inner points
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//
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MakeArc(pBox->bmins[AXIS_X] + iWallWidth,
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pBox->bmins[AXIS_Y] + iWallWidth,
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pBox->bmaxs[AXIS_X] - iWallWidth,
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pBox->bmaxs[AXIS_Y] - iWallWidth, iSides,
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fStartAngle, fArc, fInnerPoints);
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//
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// check wall width - if it's half or more of the total,
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// set the inner poinst to the center point of the box
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// and turn off the CreateSouthFace flag
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//
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BOOL bCreateSouthFace = TRUE;
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Vector Center;
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pBox->GetBoundsCenter(Center);
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if((iWallWidth*2+8) >= (pBox->bmaxs[AXIS_X] - pBox->bmins[AXIS_X]) ||
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(iWallWidth*2+8) >= (pBox->bmaxs[AXIS_Y] - pBox->bmins[AXIS_Y]))
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{
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for(int i = 0; i < ARC_MAX_POINTS; i++)
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{
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fInnerPoints[i][AXIS_X] = Center[AXIS_X];
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fInnerPoints[i][AXIS_Y] = Center[AXIS_Y];
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}
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bCreateSouthFace = FALSE;
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}
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// create group for segments
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CMapGroup *pGroup = new CMapGroup;
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Vector MoveAccum( 0.f, 0.f, 0.f );
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float fMinZ, fMaxZ;
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fMinZ = pBox->bmins[2];
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fMaxZ = pBox->bmaxs[2];
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if ((fMaxZ - fMinZ) < 1.0f)
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fMaxZ = fMinZ + 1.0f;
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for (int i = 0; i < iSides; i++)
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{
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int iNextPoint = i+1;
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if (iNextPoint >= iSides + 1)
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iNextPoint = 0;
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CMapSolid *pSolid = CreateSegment(
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fMinZ, fMaxZ,
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fOuterPoints, fInnerPoints,
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i, iNextPoint, bCreateSouthFace);
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pGroup->AddChild(pSolid);
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if (iAddHeight && i) // don't move first segment
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{
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MoveAccum[2] += iAddHeight;
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pSolid->TransMove(MoveAccum);
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}
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}
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pGroup->CalcBounds(TRUE);
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if (Options.general.bStretchArches)
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{
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// make sure size of group's bounds are size of original bounds -
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// if not, scale up. this can happen when we use rotation.
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Vector objsize, boundsize;
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pBox->GetBoundsSize(boundsize);
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pGroup->GetBoundsSize(objsize);
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if (boundsize[AXIS_X] > objsize[AXIS_X] ||
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boundsize[AXIS_Y] > objsize[AXIS_Y])
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{
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Vector scale;
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scale[AXIS_X] = boundsize[AXIS_X] / objsize[AXIS_X];
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scale[AXIS_Y] = boundsize[AXIS_Y] / objsize[AXIS_Y];
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scale[AXIS_Z] = 1.0f; // xxxYWB scaling by 0 causes veneers, so I changed to 1.0
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Vector center;
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pBox->GetBoundsCenter(center);
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pGroup->TransScale(center, scale);
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}
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}
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return pGroup;
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}
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//-----------------------------------------------------------------------------
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// Purpose:
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// Input : pBox -
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// fStartAngle -
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// iSides -
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// fArc -
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// iWallWidth -
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// iAddHeight -
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// bPreview -
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// Output : Returns a group containing the arch solids.
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//-----------------------------------------------------------------------------
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typedef float TorusPointList_t[ARC_MAX_POINTS][3];
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CMapClass *CreateTorus(BoundBox *pBox, float fStartAngle, int iSides, float fArc, int iWallWidth, float flCrossSectionalRadius,
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float fRotationStartAngle, int iRotationSides, float fRotationArc, int iAddHeight, BOOL bPreview)
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{
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float xCenter = (pBox->bmaxs[AXIS_X] + pBox->bmins[AXIS_X]) * 0.5f;
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float yCenter = (pBox->bmaxs[AXIS_Y] + pBox->bmins[AXIS_Y]) * 0.5f;
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float xRad = (pBox->bmaxs[AXIS_X] - xCenter);
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float yRad = (pBox->bmaxs[AXIS_Y] - yCenter);
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if (xRad < 0.0f )
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{
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xRad = 0.0f;
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}
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|
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if (yRad < 0.0f )
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{
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yRad = 0.0f;
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}
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|
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if ( flCrossSectionalRadius > (xRad * 0.5f) )
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{
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flCrossSectionalRadius = (xRad * 0.5f);
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}
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if ( flCrossSectionalRadius > (yRad * 0.5f) )
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{
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flCrossSectionalRadius = (yRad * 0.5f);
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}
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|
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if ( iWallWidth < flCrossSectionalRadius )
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{
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flCrossSectionalRadius -= iWallWidth;
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|
}
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else
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{
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iWallWidth = flCrossSectionalRadius;
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flCrossSectionalRadius = 0.0f;
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}
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|
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float flCrossSectionHalfWidth = flCrossSectionalRadius + iWallWidth;
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xRad -= flCrossSectionHalfWidth;
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yRad -= flCrossSectionHalfWidth;
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|
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|
float fOuterPoints[ARC_MAX_POINTS][2];
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float fInnerPoints[ARC_MAX_POINTS][2];
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|
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// create outer points (unrotated)
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MakeArcCenterRadius(0.0f, 0.0f,
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flCrossSectionalRadius + iWallWidth, flCrossSectionalRadius + iWallWidth,
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iSides, fStartAngle, fArc, fOuterPoints);
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|
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BOOL bCreateSouthFace = TRUE;
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if ( flCrossSectionalRadius != 0.0f )
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|
{
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// create inner points (unrotated)
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|
MakeArcCenterRadius(0.0f, 0.0f, flCrossSectionalRadius, flCrossSectionalRadius,
|
|
iSides, fStartAngle, fArc, fInnerPoints);
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|
}
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|
else
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|
{
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|
for( int i = 0; i < iSides; i++)
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|
{
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fInnerPoints[i][0] = fInnerPoints[i][1] = 0.0f;
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|
}
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bCreateSouthFace = FALSE;
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|
}
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|
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// create group for segments
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|
CMapGroup *pGroup = new CMapGroup;
|
|
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|
TorusPointList_t innerPoints[2];
|
|
TorusPointList_t outerPoints[2];
|
|
TorusPointList_t *pStartInnerPoints;
|
|
TorusPointList_t *pStartOuterPoints;
|
|
TorusPointList_t *pEndInnerPoints = &innerPoints[1];
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|
TorusPointList_t *pEndOuterPoints = &outerPoints[1];
|
|
int nCurrIndex = 0;
|
|
|
|
float flCurrentZ = pBox->bmins[AXIS_Z] + iWallWidth + flCrossSectionalRadius;
|
|
float flDeltaZ = (float)iAddHeight / (float)(iRotationSides);
|
|
|
|
float flRotationAngle = fRotationStartAngle;
|
|
float flRotationDeltaAngle = fRotationArc / iRotationSides;
|
|
|
|
bool bIsCircle = ( iAddHeight == 0.0f ) && ( fRotationArc == 360.0f );
|
|
++iRotationSides;
|
|
for ( int i = 0; i != iRotationSides; ++i )
|
|
{
|
|
// This eliminates a seam in circular toruses
|
|
if ( bIsCircle && (i == iRotationSides - 1) )
|
|
{
|
|
flRotationAngle = fRotationStartAngle;
|
|
}
|
|
|
|
float xCurrCenter, yCurrCenter;
|
|
|
|
float flCosAngle = cos( DEG2RAD(flRotationAngle) );
|
|
float flSinAngle = sin( DEG2RAD(flRotationAngle) );
|
|
xCurrCenter = xCenter + xRad * flCosAngle;
|
|
yCurrCenter = yCenter + yRad * flSinAngle;
|
|
|
|
// Update buffers
|
|
pStartInnerPoints = pEndInnerPoints;
|
|
pStartOuterPoints = pEndOuterPoints;
|
|
pEndInnerPoints = &innerPoints[nCurrIndex];
|
|
pEndOuterPoints = &outerPoints[nCurrIndex];
|
|
nCurrIndex = 1 - nCurrIndex;
|
|
|
|
// Transform points into actual space.
|
|
int jPrevPoint = -1;
|
|
int j = 0;
|
|
do
|
|
{
|
|
// x original is transformed into x/y based on rotation
|
|
// y original is transformed into z
|
|
(*pEndInnerPoints)[j][0] = xCurrCenter + fInnerPoints[j][0] * flCosAngle;
|
|
(*pEndInnerPoints)[j][1] = yCurrCenter + fInnerPoints[j][0] * flSinAngle;
|
|
(*pEndInnerPoints)[j][2] = flCurrentZ + fInnerPoints[j][1];
|
|
|
|
(*pEndOuterPoints)[j][0] = xCurrCenter + fOuterPoints[j][0] * flCosAngle;
|
|
(*pEndOuterPoints)[j][1] = yCurrCenter + fOuterPoints[j][0] * flSinAngle;
|
|
(*pEndOuterPoints)[j][2] = flCurrentZ + fOuterPoints[j][1];
|
|
|
|
// We'll use the j == 0 data when iNextPoint = iSides - 1
|
|
if (( i != 0 ) && ( jPrevPoint != -1 ))
|
|
{
|
|
CMapSolid *pSolid = CreateSegment(
|
|
*pStartOuterPoints, *pStartInnerPoints,
|
|
*pEndOuterPoints, *pEndInnerPoints,
|
|
jPrevPoint, j, bCreateSouthFace);
|
|
|
|
pGroup->AddChild(pSolid);
|
|
}
|
|
|
|
jPrevPoint = j;
|
|
++j;
|
|
} while( jPrevPoint != iSides );
|
|
|
|
flRotationAngle += flRotationDeltaAngle;
|
|
flCurrentZ += flDeltaZ;
|
|
|
|
if ( flRotationAngle >= 360.0f )
|
|
{
|
|
flRotationAngle -= 360.0f;
|
|
}
|
|
}
|
|
|
|
pGroup->CalcBounds(TRUE);
|
|
|
|
if (Options.general.bStretchArches)
|
|
{
|
|
// make sure size of group's bounds are size of original bounds -
|
|
// if not, scale up. this can happen when we use rotation.
|
|
Vector objsize, boundsize;
|
|
pBox->GetBoundsSize(boundsize);
|
|
pGroup->GetBoundsSize(objsize);
|
|
|
|
if (boundsize[AXIS_X] > objsize[AXIS_X] ||
|
|
boundsize[AXIS_Y] > objsize[AXIS_Y])
|
|
{
|
|
Vector scale;
|
|
scale[AXIS_X] = boundsize[AXIS_X] / objsize[AXIS_X];
|
|
scale[AXIS_Y] = boundsize[AXIS_Y] / objsize[AXIS_Y];
|
|
scale[AXIS_Z] = 1.0f; // xxxYWB scaling by 0 causes veneers, so I changed to 1.0
|
|
Vector center;
|
|
pBox->GetBoundsCenter(center);
|
|
pGroup->TransScale(center, scale);
|
|
}
|
|
}
|
|
|
|
return pGroup;
|
|
}
|
|
|
|
|