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Serious-Engine/Sources/WorldEditor/TerrainEditing.cpp

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Uploading full engine sources
2016-03-11 14:57:17 +01:00
/* Copyright (c) 2002-2012 Croteam Ltd. All rights reserved. */
#include "StdAfx.h"
#include <Engine/Templates/Stock_CTextureData.h>
// global variables used in terrain editing functions
UWORD *_puwBuffer=NULL;
Rect _rect;
PIX _srcExtraW=0;
PIX _srcExtraH=0;
CTextureData *_ptdBrush=NULL;
CTextureData *_ptdDistributionRandomNoise=NULL;
CTextureData *_ptdContinousRandomNoise=NULL;
UWORD *_puwNoiseTarget=NULL;
PIX _pixNoiseTargetW=0;
PIX _pixNoiseTargetH=0;
FLOAT _fStrength=0.0f;
// fbm noise buffer
FLOAT *_pafWhiteNoise=NULL;
#define WNOISE 64
// undo variables
UWORD *_puwUndoTerrain=NULL;
Rect _rectUndo;
BOOL _bUndoStart=FALSE;
BufferType _btUndoBufferType=BT_INVALID;
INDEX _iUndoBufferData=-1;
INDEX _iTerrainEntityID=-1;
// filter matrices
FLOAT _afFilterFineBlur[5][5]=
{
{0.0f, 0.0f, 0.0f, 0.0f, 0.0f},
{0.0f, 0.0625f, 0.0625f, 0.0625f, 0.0f},
{0.0f, 0.0625f, 0.5f, 0.0625f, 0.0f},
{0.0f, 0.0625f, 0.0625f, 0.0625f, 0.0f},
{0.0f, 0.0f, 0.0f, 0.0f, 0.0f},
};
FLOAT _afFilterBlurMore[5][5]=
{
{0.0277777f, 0.0277777f, 0.0277777f, 0.0277777f, 0.0277777f},
{0.0277777f, 0.0555555f, 0.0555555f, 0.0555555f, 0.0277777f},
{0.0277777f, 0.0555555f, 0.0111111f, 0.0555555f, 0.0277777f},
{0.0277777f, 0.0555555f, 0.0555555f, 0.0555555f, 0.0277777f},
{0.0277777f, 0.0277777f, 0.0277777f, 0.0277777f, 0.0277777f},
};
FLOAT _afFilterEdgeDetect[5][5]=
{
{0.0f, 0.0f, 0.0f, 0.0f, 0.0f},
{0.0f, 1.0f, 1.0f, 1.0f, 0.0f},
{0.0f, 1.0f, -7.0f, 1.0f, 0.0f},
{0.0f, 1.0f, 1.0f, 1.0f, 0.0f},
{0.0f, 0.0f, 0.0f, 0.0f, 0.0f},
};
FLOAT _afFilterEmboss[5][5]=
{
{0.0f, 0.0f, 0.0f, 0.0f, 0.0f},
{0.0f, 1.0f, 1.0f, -1.0f, 0.0f},
{0.0f, 1.0f, 1.0f, -1.0f, 0.0f},
{0.0f, 1.0f, -1.0f, -1.0f, 0.0f},
{0.0f, 0.0f, 0.0f, 0.0f, 0.0f},
};
FLOAT _afFilterSharpen[5][5]=
{
{0.0f, 0.0f, 0.0f, 0.0f, 0.0f},
{0.0f, -1.0f, -1.0f, -1.0f, 0.0f},
{0.0f, -1.0f, 16.0f, -1.0f, 0.0f},
{0.0f, -1.0f, -1.0f, -1.0f, 0.0f},
{0.0f, 0.0f, 0.0f, 0.0f, 0.0f},
};
FLOAT GetBrushMultiplier(INDEX x, INDEX y)
{
if(_ptdBrush==NULL) return 1.0f;
{
COLOR col=_ptdBrush->GetTexel(x,y);
FLOAT fResult=FLOAT(col>>24)/255.0f;
return fResult;
}
}
void ApplyAddPaint(UWORD uwMin, UWORD uwMax)
{
for(INDEX y=0; y<_rect.Height(); y++)
{
for(INDEX x=0; x<_rect.Width(); x++)
{
FLOAT fBrushMultiplier=GetBrushMultiplier(x,y);
if( fBrushMultiplier==0.0f) continue;
INDEX iOffset=y*_rect.Width()+x;
FLOAT fValue=_puwBuffer[iOffset];
fValue+=fBrushMultiplier*_fStrength*32.0f*theApp.m_fPaintPower;
fValue=Clamp(fValue,FLOAT(uwMin),FLOAT(uwMax));
_puwBuffer[iOffset]=fValue;
}
}
}
void ApplyRNDNoise(void)
{
CTerrain *ptrTerrain=GetTerrain();
if( ptrTerrain==NULL) return;
FLOAT fMaxNoise=theApp.m_fNoiseAltitude/ptrTerrain->tr_vTerrainSize(2)*65535.0f;
for(INDEX y=0; y<_rect.Height(); y++)
{
for(INDEX x=0; x<_rect.Width(); x++)
{
FLOAT fBrushMultiplier=GetBrushMultiplier(x,y);
INDEX iPixSrc=y*_rect.Width()+x;
FLOAT fInfluence=_puwBuffer[iPixSrc];
FLOAT fRnd=FLOAT(rand())/RAND_MAX-0.5f;
FLOAT fValue=_puwBuffer[iPixSrc];
FLOAT fMaxRandomized=fValue+fRnd*fMaxNoise;
FLOAT fFilterPower=Clamp(fBrushMultiplier*_fStrength,0.0f,1.0f);
FLOAT fResult=Lerp( fValue, fMaxRandomized, fFilterPower);
UWORD uwResult=Clamp(UWORD(fResult),MIN_UWORD,MAX_UWORD);
_puwBuffer[iPixSrc]=uwResult;
}
}
}
FLOAT GetDistributionNoise( INDEX x, INDEX y, FLOAT fRandom)
{
INDEX iw=_ptdDistributionRandomNoise->GetPixWidth();
INDEX ih=_ptdDistributionRandomNoise->GetPixHeight();
INDEX ctSize=iw*ih;
INDEX iOffset=abs(INDEX(iw*y+x+fRandom*ctSize)%ctSize);
COLOR col=_ptdDistributionRandomNoise->td_pulFrames[iOffset];
FLOAT fResult=FLOAT(col&0xFF)/255.0f;
return fResult;
}
FLOAT GetContinousNoise( INDEX x, INDEX y, FLOAT fRandom)
{
INDEX iw=_ptdContinousRandomNoise->GetPixWidth();
INDEX ih=_ptdContinousRandomNoise->GetPixHeight();
INDEX ctSize=iw*ih;
INDEX iOffset=abs(INDEX(iw*y+x+fRandom*ctSize)%ctSize);
COLOR col=_ptdContinousRandomNoise->td_pulFrames[iOffset];
FLOAT fResult=FLOAT(col&0xFF)/255.0f;
return fResult;
}
void ApplyContinousNoise(void)
{
CTerrain *ptrTerrain=GetTerrain();
if( ptrTerrain==NULL) return;
FLOAT fMaxNoise=theApp.m_fNoiseAltitude/ptrTerrain->tr_vTerrainSize(2)*65535.0f;
for(INDEX y=0; y<_rect.Height(); y++)
{
INDEX oy=y+_rect.rc_iTop;
for(INDEX x=0; x<_rect.Width(); x++)
{
INDEX ox=x+_rect.rc_iLeft;
FLOAT fBrushMultiplier=GetBrushMultiplier(x,y);
INDEX iPixSrc=y*_rect.Width()+x;
FLOAT fInfluence=_puwBuffer[iPixSrc];
FLOAT fRnd=GetContinousNoise( ox, oy, 0.0f)-0.5f;
FLOAT fValue=_puwBuffer[iPixSrc];
FLOAT fMaxRandomized=fValue+fRnd*fMaxNoise;
fMaxRandomized=Clamp(fMaxRandomized,(FLOAT)MIN_UWORD,(FLOAT)MAX_UWORD);
FLOAT fFilterPower=Clamp(fBrushMultiplier*_fStrength,0.0f,1.0f);
FLOAT fResult=Lerp( fValue, fMaxRandomized, fFilterPower);
UWORD uwResult=Clamp((UWORD)fResult,MIN_UWORD,MAX_UWORD);
_puwBuffer[iPixSrc]=uwResult;
}
}
}
void ApplyPosterize(void)
{
CTerrain *ptrTerrain=GetTerrain();
if( ptrTerrain==NULL) return;
FLOAT fStepUW=theApp.m_fPosterizeStep/ptrTerrain->tr_vTerrainSize(2)*65535.0f;
for(INDEX y=0; y<_rect.Height(); y++)
{
for(INDEX x=0; x<_rect.Width(); x++)
{
FLOAT fBrushMultiplier=GetBrushMultiplier(x,y);
if(fBrushMultiplier==0.0f) continue;
INDEX iPixSrc=y*_rect.Width()+x;
FLOAT fValue=_puwBuffer[iPixSrc];
FLOAT fPosterized=(INDEX(fValue/fStepUW))*fStepUW+1.0f;
UWORD uwResult=Clamp(UWORD(fPosterized),MIN_UWORD,MAX_UWORD);
_puwBuffer[iPixSrc]=uwResult;
}
}
}
void ApplyFilterMatrix(FLOAT afFilterMatrix[5][5])
{
INDEX ctBuffBytes=_rect.Width()*_rect.Height()*sizeof(UWORD);
UWORD *puwDst=(UWORD*)AllocMemory(ctBuffBytes);
memcpy(puwDst,_puwBuffer,ctBuffBytes);
for(INDEX y=0; y<_rect.Height()-_srcExtraH*2; y++)
{
for(INDEX x=0; x<_rect.Width()-_srcExtraW*2; x++)
{
INDEX iPixDst=(y+_srcExtraH)*_rect.Width()+x+_srcExtraW;
FLOAT fBrushMultiplier=GetBrushMultiplier(x,y);
FLOAT fDivSum=0.0f;
FLOAT fSum=0.0f;
for(INDEX j=0; j<5; j++)
{
for(INDEX i=0; i<5; i++)
{
FLOAT fWeight=(afFilterMatrix)[i][j];
fDivSum+=fWeight;
INDEX iPixSrc=(y+j)*_rect.Width()+(x+i);
FLOAT fInfluence=_puwBuffer[iPixSrc];
fSum+=fInfluence*fWeight;
}
}
UWORD uwMax=Clamp(UWORD(fSum/fDivSum),MIN_UWORD,MAX_UWORD);
FLOAT fFilterPower=Clamp(fBrushMultiplier*_fStrength/64.0f,0.0f,1.0f);
UWORD uwResult=Lerp( puwDst[iPixDst], uwMax, fFilterPower);
puwDst[iPixDst]=uwResult;
}
}
memcpy(_puwBuffer,puwDst,ctBuffBytes);
FreeMemory( puwDst);
}
static INDEX _iTerrainWidth=0;
static UWORD *_puwHeightMap=NULL;
static INDEX _iRandomDX=0;
void SetHMPixel( UWORD pix, INDEX x, INDEX y)
{
UWORD *pdest=_puwHeightMap+y*_iTerrainWidth+x;
if (*pdest==65535) {
*pdest=pix;
}
}
UWORD GetHMPixel(INDEX x, INDEX y)
{
UWORD *pdest=_puwHeightMap+y*_iTerrainWidth+x;
return *pdest;
}
UWORD RandomizePixel(FLOAT fmid, FLOAT fdmax)
{
FLOAT fRand=((FLOAT)rand())/RAND_MAX-0.5f;
FLOAT fd=fdmax*fRand;
FLOAT fres=Clamp(fmid+fd,0.0f,65536.0f);
return fres;
}
void SubdivideAndDisplace(INDEX x, INDEX y, INDEX idx, FLOAT fdMax)
{
FLOAT flu=GetHMPixel(x,y);
FLOAT fru=GetHMPixel(x+idx,y);
FLOAT frd=GetHMPixel(x+idx,y+idx);
FLOAT fld=GetHMPixel(x,y+idx);
if( fdMax<_iRandomDX)
{
SetHMPixel(RandomizePixel((flu+fru)/2.0f,fdMax), x+idx/2, y ); // middle top
SetHMPixel(RandomizePixel((fld+frd)/2.0f,fdMax), x+idx/2, y+idx ); // middle bottom
SetHMPixel(RandomizePixel((fru+frd)/2.0f,fdMax), x+idx, y+idx/2); // right middle
SetHMPixel(RandomizePixel((flu+fld)/2.0f,fdMax), x, y+idx/2); // left middle
SetHMPixel(RandomizePixel((flu+fru+fld+frd)/4.0f,fdMax), x+idx/2, y+idx/2); // middle
}
else
{
SetHMPixel(RandomizePixel(65536.0f/2.0f,fdMax), x+idx/2, y ); // middle top
SetHMPixel(RandomizePixel(65536.0f/2.0f,fdMax), x+idx/2, y+idx ); // middle bottom
SetHMPixel(RandomizePixel(65536.0f/2.0f,fdMax), x+idx, y+idx/2); // right middle
SetHMPixel(RandomizePixel(65536.0f/2.0f,fdMax), x, y+idx/2); // left middle
SetHMPixel(RandomizePixel(65536.0f/2.0f,fdMax), x+idx/2, y+idx/2); // middle
}
fdMax*=0.5f;
if(idx>1)
{
SubdivideAndDisplace(x ,y , idx/2, fdMax);
SubdivideAndDisplace(x+idx/2,y , idx/2, fdMax);
SubdivideAndDisplace(x ,y+idx/2, idx/2, fdMax);
SubdivideAndDisplace(x+idx/2,y+idx/2, idx/2, fdMax);
}
}
Rect GetTerrainRect(void)
{
Rect rect;
rect.rc_iLeft=0;
rect.rc_iRight=0;
rect.rc_iTop=0;
rect.rc_iBottom=0;
CTerrain *ptrTerrain=GetTerrain();
if( ptrTerrain==NULL) return rect;
rect.rc_iLeft=0;
rect.rc_iRight=ptrTerrain->tr_pixHeightMapWidth;
rect.rc_iTop=0;
rect.rc_iBottom=ptrTerrain->tr_pixHeightMapHeight;
return rect;
}
FLOAT GetWrappedPixelValue( INDEX x, INDEX y)
{
INDEX iWrapX=(x+WNOISE)%WNOISE;
INDEX iWrapY=(y+WNOISE)%WNOISE;
return _pafWhiteNoise[iWrapY*WNOISE+iWrapX];
}
void RandomizeWhiteNoise(void)
{
if(_pafWhiteNoise==NULL)
{
_pafWhiteNoise=(FLOAT *)AllocMemory(WNOISE*WNOISE*sizeof(FLOAT));
}
FLOAT *pfTemp=_pafWhiteNoise;
for(INDEX i=0; i<WNOISE*WNOISE; i++)
{
FLOAT fRnd=FLOAT(rand())/RAND_MAX-0.5f;
*pfTemp=fRnd;
pfTemp++;
}
}
FLOAT *GenerateTerrain_FBMBuffer(PIX pixW, PIX pixH, INDEX ctOctaves, FLOAT fHighFrequencyStep,
FLOAT fStepFactor, FLOAT fMaxAmplitude, FLOAT fAmplitudeDecreaser,
BOOL bAddNegativeValues, BOOL bRandomOffest, FLOAT &fMin, FLOAT &fMax)
{
if(_pafWhiteNoise==NULL)
{
RandomizeWhiteNoise();
}
FLOAT *pfTemp=_pafWhiteNoise;
FLOAT fTmpMaxAmplitude=fMaxAmplitude;
INDEX ctMemory=pixW*pixH*sizeof(FLOAT);
FLOAT *pafFBM=(FLOAT *)AllocMemory(ctMemory);
memset(pafFBM,0,ctMemory);
FLOAT fPixStep=fHighFrequencyStep/pow(fStepFactor,ctOctaves);
fMin=1e6;
fMax=-1e6;
for(INDEX iOctave=ctOctaves-1; iOctave>=0; iOctave--)
{
FLOAT fOctaveOffset=0.0f;
if( bRandomOffest)
{
fOctaveOffset=_pafWhiteNoise[iOctave];
}
for(INDEX y=0; y<pixH; y++)
{
for(INDEX x=0; x<pixW; x++)
{
FLOAT fY=y*fPixStep+fOctaveOffset;
FLOAT fX=x*fPixStep+fOctaveOffset;
// calculate bilinear value
FLOAT fLU=GetWrappedPixelValue( fX , fY);
FLOAT fRU=GetWrappedPixelValue( fX+1, fY);
FLOAT fLD=GetWrappedPixelValue( fX , fY+1);
FLOAT fRD=GetWrappedPixelValue( fX+1, fY+1);
FLOAT fFX=fX-INDEX(fX);
FLOAT fFY=fY-INDEX(fY);
FLOAT fBil=Lerp(Lerp(fLU,fRU,fFX),Lerp(fLD,fRD,fFX),fFY);
INDEX iOffset=pixW*y+x;
FLOAT fValue=pafFBM[iOffset];
FLOAT fAdd=fBil*fTmpMaxAmplitude;
if(bAddNegativeValues || fAdd>0)
{
fValue=fValue+fAdd;
}
pafFBM[iOffset]=fValue;
if(fValue>fMax) fMax=fValue;
if(fValue<fMin) fMin=fValue;
}
}
fPixStep*=fStepFactor;
fTmpMaxAmplitude*=fAmplitudeDecreaser;
}
return pafFBM;
}
void GenerateTerrain_SubdivideAndDisplace(void)
{
// inside subdivide and displace functions we will use these global variables
_iTerrainWidth=_rect.Width();
_puwHeightMap=_puwBuffer;
UWORD uwScrollValue=8.0f-Clamp(theApp.m_iRNDSubdivideAndDisplaceItterations, INDEX(0), INDEX(8));
_iRandomDX=(_iTerrainWidth-1)<<uwScrollValue;
UWORD uwrnd;
FLOAT fdMax=65536.0f;
for (INDEX i=0; i<_rect.Width()*_rect.Height(); i++) {
_puwHeightMap[i] = 65535;
}
uwrnd=RandomizePixel(fdMax/2.0f,fdMax); SetHMPixel(uwrnd, 0, 0);
uwrnd=RandomizePixel(fdMax/2.0f,fdMax); SetHMPixel(uwrnd, _iTerrainWidth-1, 0);
uwrnd=RandomizePixel(fdMax/2.0f,fdMax); SetHMPixel(uwrnd, _iTerrainWidth-1, _iTerrainWidth-1);
uwrnd=RandomizePixel(fdMax/2.0f,fdMax); SetHMPixel(uwrnd, 0, _iTerrainWidth-1);
// generate rest of terrain pixels using recursion
SubdivideAndDisplace(0,0,_iTerrainWidth-1,fdMax/2.0f);
}
void GenerateTerrain(void)
{
CTerrain *ptrTerrain=GetTerrain();
if( ptrTerrain==NULL) return;
switch(theApp.m_iTerrainGenerationMethod)
{
case 0:
{
GenerateTerrain_SubdivideAndDisplace();
break;
}
case 1:
{
FLOAT fMin, fMax;
PIX pixTerrainW=ptrTerrain->tr_pixHeightMapWidth;
PIX pixTerrainH=ptrTerrain->tr_pixHeightMapHeight;
FLOAT *pafFBM=GenerateTerrain_FBMBuffer( pixTerrainW, pixTerrainH, theApp.m_iFBMOctaves,
theApp.m_fFBMHighFrequencyStep,theApp.m_fFBMStepFactor, theApp.m_fFBMMaxAmplitude,
theApp.m_fFBMfAmplitudeDecreaser, theApp.m_bFBMAddNegativeValues, theApp.m_bFBMRandomOffset, fMin, fMax);
// convert buffer to height map
FLOAT fSizeY=ptrTerrain->tr_vTerrainSize(2);
FLOAT fConvertFactor=(theApp.m_fFBMMaxAmplitude/fSizeY)*MAX_UWORD;
// set height map
for(INDEX iPix=0; iPix<pixTerrainW*pixTerrainH; iPix++)
{
FLOAT fValue=pafFBM[iPix];
UWORD uwValue=UWORD(Clamp((fValue-fMin)/(fMax-fMin)*fConvertFactor,0.0f,65535.0f));
_puwBuffer[iPix]=uwValue;
}
FreeMemory( pafFBM);
break;
}
}
}
void EqualizeBuffer(void)
{
UWORD uwHeightMax=0;
UWORD uwHeightMin=MAX_UWORD;
INDEX x,y;
for(y=0; y<_rect.Height(); y++)
{
for(x=0; x<_rect.Width(); x++)
{
INDEX iOffset = y*_rect.Width()+x;
UWORD uwHeight = _puwBuffer[iOffset];
if( uwHeight>uwHeightMax) uwHeightMax=uwHeight;
if( uwHeight<uwHeightMin) uwHeightMin=uwHeight;
}
}
FLOAT fFactor=65535.0f/(uwHeightMax-uwHeightMin);
// equalize (normalize from 0 to 65535)
for(y=0; y<_rect.Height(); y++)
{
for(x=0; x<_rect.Width(); x++)
{
INDEX iOffset = y*_rect.Width()+x;
UWORD uwHeight = _puwBuffer[iOffset];
FLOAT fNormalized=(uwHeight-uwHeightMin)*fFactor;
_puwBuffer[iOffset]=fNormalized;
}
}
}
BOOL SetupContinousNoiseTexture( void)
{
try
{
_ptdContinousRandomNoise=_pTextureStock->Obtain_t( theApp.m_fnContinousNoiseTexture);
_ptdContinousRandomNoise->Force(TEX_STATIC|TEX_CONSTANT);
}
catch( char *strError)
{
(void) strError;
WarningMessage("Unable to obtain continous random noise texture!\nError: %s", strError);
return FALSE;
}
return TRUE;
}
void FreeContinousNoiseTexture( void)
{
_pTextureStock->Release( _ptdContinousRandomNoise);
}
BOOL SetupDistributionNoiseTexture( void)
{
try
{
_ptdDistributionRandomNoise=_pTextureStock->Obtain_t( theApp.m_fnDistributionNoiseTexture);
_ptdDistributionRandomNoise->Force(TEX_STATIC|TEX_CONSTANT);
}
catch( char *strError)
{
(void) strError;
WarningMessage("Unable to obtain distribution random noise texture!\nError: %s", strError);
return FALSE;
}
return TRUE;
}
void FreeDistributionNoiseTexture( void)
{
_pTextureStock->Release( _ptdDistributionRandomNoise);
}
FLOAT StepUp(FLOAT fCur, FLOAT fMin, FLOAT fMax)
{
if( fCur<=fMin) return 0.0f;
if( fCur>=fMax) return 1.0f;
return (fCur-fMin)/(fMax-fMin);
}
FLOAT StepDown(FLOAT fCur, FLOAT fMin, FLOAT fMax)
{
if( fCur<=fMin) return 1.0f;
if( fCur>=fMax) return 0.0f;
return (fMax-fCur)/(fMax-fMin);
}
FLOAT3D NormalFrom4Points(const FLOAT3D &v0, const FLOAT3D &v1, const FLOAT3D &v2, const FLOAT3D &v3,
FLOAT fLerpX, FLOAT fLerpZ)
{
FLOAT fHDeltaX = Lerp(v1(2)-v0(2), v3(2)-v2(2), fLerpZ);
FLOAT fHDeltaZ = Lerp(v0(2)-v2(2), v1(2)-v3(2), fLerpX);
FLOAT fDeltaX = v1(1) - v0(1);
FLOAT fDeltaZ = v0(3) - v2(3);
FLOAT3D vNormal;
vNormal(2) = sqrt(1 / (((fHDeltaX*fHDeltaX)/(fDeltaX*fDeltaX)) + ((fHDeltaZ*fHDeltaZ)/(fDeltaZ*fDeltaZ)) + 1));
vNormal(1) = sqrt(vNormal(2)*vNormal(2) * ((fHDeltaX*fHDeltaX) / (fDeltaX*fDeltaX)));
vNormal(3) = sqrt(vNormal(2)*vNormal(2) * ((fHDeltaZ*fHDeltaZ) / (fDeltaZ*fDeltaZ)));
if (fHDeltaX>0) {
vNormal(1) = -vNormal(1);
}
if (fHDeltaZ<0) {
vNormal(3) = -vNormal(3);
}
//ASSERT(Abs(vNormal.Length()-1)<0.01);
return vNormal;
}
FLOAT3D GetPoint(CTerrain *ptrTerrain, INDEX iX, INDEX iY)
{
const FLOAT3D &vStretch = ptrTerrain->tr_vStretch;
iX = Clamp(iX, INDEX(0), ptrTerrain->tr_pixHeightMapWidth);
iY = Clamp(iY, INDEX(0), ptrTerrain->tr_pixHeightMapHeight);
return FLOAT3D(
FLOAT(iX)*vStretch(1),
(FLOAT)ptrTerrain->tr_auwHeightMap[iX+iY*ptrTerrain->tr_pixHeightMapWidth] * vStretch(2),
FLOAT(iY)*vStretch(3));
}
UWORD GetSlope(CTerrain *ptrTerrain, INDEX iX, INDEX iY)
{
FLOAT3D av[9];
INDEX iHMapWidth = ptrTerrain->tr_pixHeightMapWidth;
FLOAT3D vStretch = ptrTerrain->tr_vStretch;
av[0] = GetPoint(ptrTerrain, iX-1, iY-1);
av[1] = GetPoint(ptrTerrain, iX , iY-1);
av[2] = GetPoint(ptrTerrain, iX+1, iY-1);
av[3] = GetPoint(ptrTerrain, iX-1, iY );
av[4] = GetPoint(ptrTerrain, iX , iY );
av[5] = GetPoint(ptrTerrain, iX+1, iY );
av[6] = GetPoint(ptrTerrain, iX-1, iY+1);
av[7] = GetPoint(ptrTerrain, iX , iY+1);
av[8] = GetPoint(ptrTerrain, iX+1, iY+1);
FLOAT3D avN[4];
FLOAT3D vNormal;
avN[0] = NormalFrom4Points(av[0], av[1], av[3], av[4], 1, 1);
avN[1] = NormalFrom4Points(av[1], av[2], av[4], av[5], 0, 1);
avN[2] = NormalFrom4Points(av[3], av[4], av[6], av[7], 1, 0);
avN[3] = NormalFrom4Points(av[4], av[5], av[7], av[8], 0, 0);
vNormal = avN[0]+avN[1]+avN[2]+avN[3];
vNormal.Normalize();
return (1-vNormal(2))*65535;
}
void GenerateLayerDistribution(INDEX iForLayer, Rect rect)
{
if(!SetupDistributionNoiseTexture()) return;
CTerrain *ptrTerrain=GetTerrain();
if( ptrTerrain==NULL) return;
// obtain buffer
UWORD *puwAltitude=GetBufferForEditing(ptrTerrain, rect, BT_HEIGHT_MAP, 0);
INDEX ctSize=rect.Width()*rect.Height()*sizeof(UWORD);
UWORD *puwSlope=(UWORD *)AllocMemory(ctSize);
// prepare slope buffer
for(INDEX y=0; y<rect.Height(); y++)
{
for(INDEX x=0; x<rect.Width(); x++)
{
INDEX iOffset = y*rect.Width()+x;
puwSlope[iOffset] = GetSlope(ptrTerrain, x+rect.rc_iLeft, y+rect.rc_iTop);
}
}
// for each layer
for(INDEX iLayer=0; iLayer<ptrTerrain->tr_atlLayers.Count(); iLayer++)
{
if( iForLayer!=-1 && iLayer!=iForLayer) continue;
CTerrainLayer *ptlLayer=GetLayer(iLayer);
if(!ptlLayer->tl_bAutoRegenerated) continue;
// get layer
UWORD *puwMask=GetBufferForEditing(ptrTerrain, rect, BT_LAYER_MASK, iLayer);
for(INDEX y=0; y<rect.Height(); y++)
{
INDEX oy=y+rect.rc_iTop;
for(INDEX x=0; x<rect.Width(); x++)
{
INDEX ox=x+rect.rc_iLeft;
INDEX iOffset = y*rect.Width()+x;
FLOAT fAltitudeRatio = puwAltitude[iOffset]/65535.0f;
FLOAT fSlopeRatio = puwSlope[iOffset]/65535.0f;
FLOAT fAltitudeRange=ptlLayer->tl_fMaxAltitude-ptlLayer->tl_fMinAltitude;
FLOAT fSlopeRange=ptlLayer->tl_fMaxSlope-ptlLayer->tl_fMinSlope;
// get coverage influence
FLOAT fCoverageInfluence=1.0f;
FLOAT fCoverageRandom=GetDistributionNoise( ox, oy, ptlLayer->tl_fCoverageRandom);
fCoverageInfluence=StepDown(fCoverageRandom, ptlLayer->tl_fCoverage, ptlLayer->tl_fCoverage+ptlLayer->tl_fCoverageNoise);
// get min altitude influence
FLOAT fMinAltitudeInfluence=1.0f;
if(ptlLayer->tl_bApplyMinAltitude)
{
FLOAT fMinAltitudeNoise=(GetDistributionNoise( ox, oy, ptlLayer->tl_fMinAltitudeRandom)-0.5f)*ptlLayer->tl_fMinAltitudeNoise;
FLOAT fAltMinFade1=ptlLayer->tl_fMinAltitude+fAltitudeRange*ptlLayer->tl_fMinAltitudeFade;
fMinAltitudeInfluence=StepUp(fAltitudeRatio+fMinAltitudeNoise, ptlLayer->tl_fMinAltitude, fAltMinFade1);
}
// get max altitude influence
FLOAT fMaxAltitudeInfluence=1.0f;
if(ptlLayer->tl_bApplyMaxAltitude)
{
FLOAT fMaxAltitudeNoise=(GetDistributionNoise( ox, oy, ptlLayer->tl_fMaxAltitudeRandom)-0.5f)*ptlLayer->tl_fMaxAltitudeNoise;
FLOAT fAltMaxFade1=ptlLayer->tl_fMaxAltitude-fAltitudeRange*ptlLayer->tl_fMaxAltitudeFade;
fMaxAltitudeInfluence=StepDown(fAltitudeRatio+fMaxAltitudeNoise, fAltMaxFade1, ptlLayer->tl_fMaxAltitude);
}
// get min slope influence
FLOAT fMinSlopeInfluence=1.0f;
if(ptlLayer->tl_bApplyMinSlope)
{
FLOAT fMinSlopeNoise=(GetDistributionNoise( ox, oy, ptlLayer->tl_fMinSlopeRandom)-0.5f)*ptlLayer->tl_fMinSlopeNoise;
FLOAT fSlopeMinFade1=ptlLayer->tl_fMinSlope+fSlopeRange*ptlLayer->tl_fMinSlopeFade;
fMinSlopeInfluence=StepUp(fSlopeRatio+fMinSlopeNoise, ptlLayer->tl_fMinSlope, fSlopeMinFade1);
}
// get max slope influence
FLOAT fMaxSlopeInfluence=1.0f;
if(ptlLayer->tl_bApplyMaxSlope)
{
FLOAT fMaxSlopeNoise=(GetDistributionNoise( ox, oy, ptlLayer->tl_fMaxSlopeRandom)-0.5f)*ptlLayer->tl_fMaxSlopeNoise;
FLOAT fSlopeMaxFade1=ptlLayer->tl_fMaxSlope-fSlopeRange*ptlLayer->tl_fMaxSlopeFade;
fMaxSlopeInfluence=StepDown(fSlopeRatio+fMaxSlopeNoise, fSlopeMaxFade1, ptlLayer->tl_fMaxSlope);
}
// calculate result of all influences
puwMask[iOffset]= 65535.0f*
fCoverageInfluence*
fMinAltitudeInfluence*
fMaxAltitudeInfluence*
fMinSlopeInfluence*
fMaxSlopeInfluence;
}
}
// apply buffer change
SetBufferForEditing(ptrTerrain, puwMask, rect, BT_LAYER_MASK, iLayer);
theApp.GetActiveDocument()->SetModifiedFlag( TRUE);
FreeMemory(puwMask);
}
FreeMemory(puwAltitude);
theApp.m_ctTerrainPageCanvas.MarkChanged();
FreeDistributionNoiseTexture();
}
void GenerateLayerDistribution(INDEX iForLayer)
{
CTerrain *ptrTerrain=GetTerrain();
if( ptrTerrain==NULL) return;
Rect rect;
rect.rc_iLeft=0;
rect.rc_iRight=ptrTerrain->tr_pixHeightMapWidth;
rect.rc_iTop=0;
rect.rc_iBottom=ptrTerrain->tr_pixHeightMapHeight;
GenerateLayerDistribution(iForLayer, rect);
}
void RecalculateShadows(void)
{
CTerrain *ptrTerrain=GetTerrain();
if( ptrTerrain==NULL) return;
ptrTerrain->UpdateShadowMap();
}
void OptimizeLayers(void)
{
CTerrain *ptrTerrain=GetTerrain();
if( ptrTerrain==NULL) return;
Rect rect;
rect.rc_iLeft=0;
rect.rc_iRight=ptrTerrain->tr_pixHeightMapWidth;
rect.rc_iTop=0;
rect.rc_iBottom=ptrTerrain->tr_pixHeightMapHeight;
CStaticArray<UWORD*> apuwLayers;
// obtain buffer
INDEX ctLayers=ptrTerrain->tr_atlLayers.Count();
apuwLayers.New(ctLayers);
INDEX iLayer, iOffset;
for( iLayer=0; iLayer<ctLayers; iLayer++)
{
UWORD *puw=GetBufferForEditing(ptrTerrain, rect, BT_LAYER_MASK, iLayer);
apuwLayers[iLayer]=puw;
}
// count overdraw before optimisation
INDEX ctDrawnBefore=0;
INDEX ctPixels=rect.Width()*rect.Height();
for(iOffset=0; iOffset<ctPixels; iOffset++)
{
for(INDEX i=0; i<ctLayers; i++)
{
UWORD *puwCurr=apuwLayers[i]+iOffset;
if( (*puwCurr)>>8 != 0) ctDrawnBefore++;
}
}
// optimize for overdraw
for(iOffset=0; iOffset<ctPixels; iOffset++)
{
BOOL bOptimize=FALSE;
for(INDEX i=ctLayers-1; i>=0; i--)
{
UWORD *puwCurr=apuwLayers[i]+iOffset;
// if should optimize
if(bOptimize)
{
// clear mask
*puwCurr=0;
}
else
{
if( (*puwCurr)>>8 == 255)
{
// clear mask for all layers beneath current one
bOptimize=TRUE;
}
}
}
}
// count overdraw after optimisation
INDEX ctDrawnAfter=0;
for(iOffset=0; iOffset<ctPixels; iOffset++)
{
for(INDEX i=0; i<ctLayers; i++)
{
UWORD *puwCurr=apuwLayers[i]+iOffset;
if( (*puwCurr)>>8 != 0) ctDrawnAfter++;
}
}
// make a report about optimisation success
CMainFrame* pMainFrame = STATIC_DOWNCAST(CMainFrame, AfxGetMainWnd());
CTString strReport;
strReport.PrintF("Overdraw before optimization: %g. Overdraw after optimization: %g",
FLOAT(ctDrawnBefore)/ctPixels, FLOAT(ctDrawnAfter)/ctPixels);
pMainFrame->SetStatusBarMessage( strReport, STATUS_LINE_PANE, 5.0f);
// free buffers
for( iLayer=0; iLayer<ctLayers; iLayer++)
{
SetBufferForEditing(ptrTerrain, apuwLayers[iLayer], rect, BT_LAYER_MASK, iLayer);
FreeMemory(apuwLayers[iLayer]);
}
theApp.GetActiveDocument()->SetModifiedFlag( TRUE);
theApp.m_ctTerrainPageCanvas.MarkChanged();
}
BOOL _bIsUpToDate=TRUE;
Rect _rectDiscarded;
void DiscardLayerDistribution(Rect rect)
{
if(_bIsUpToDate)
{
_rectDiscarded.rc_iLeft=rect.rc_iLeft;
_rectDiscarded.rc_iRight=rect.rc_iRight;
_rectDiscarded.rc_iTop=rect.rc_iTop;
_rectDiscarded.rc_iBottom=rect.rc_iBottom;
}
else
{
if(rect.rc_iLeft < _rectDiscarded.rc_iLeft) _rectDiscarded.rc_iLeft=rect.rc_iLeft;
if(rect.rc_iRight > _rectDiscarded.rc_iRight) _rectDiscarded.rc_iRight=rect.rc_iRight;
if(rect.rc_iTop < _rectDiscarded.rc_iTop) _rectDiscarded.rc_iTop=rect.rc_iTop;
if(rect.rc_iBottom > _rectDiscarded.rc_iBottom) _rectDiscarded.rc_iBottom=rect.rc_iBottom;
}
_bIsUpToDate=FALSE;
}
void UpdateLayerDistribution(void)
{
if(_bIsUpToDate || !theApp.m_Preferences.ap_bAutoUpdateTerrainDistribution) return;
// update layer distribution
GenerateLayerDistribution(-1, _rectDiscarded);
_bIsUpToDate=TRUE;
}
void ApplyFilterOntoTerrain(void)
{
EditTerrain(NULL, FLOAT3D(0,0,0), theApp.m_fFilterPower*16.0f, TE_ALTITUDE_FILTER);
}
void ApplySmoothOntoTerrain(void)
{
EditTerrain(NULL, FLOAT3D(0,0,0), theApp.m_fSmoothPower*16.0f, TE_ALTITUDE_SMOOTH);
}
void ApplyEqualizeOntoTerrain(void)
{
EditTerrain(NULL, FLOAT3D(0,0,0), 1.0f, TE_ALTITUDE_EQUALIZE);
}
void ApplyGenerateTerrain(void)
{
EditTerrain(NULL, FLOAT3D(0,0,0), 1.0f, TE_GENERATE_TERRAIN);
}
void ApplyRndNoiseOntoTerrain(void)
{
EditTerrain(NULL, FLOAT3D(0,0,0), theApp.m_fNoiseAltitude, TE_ALTITUDE_RND_NOISE);
}
void ApplyContinousNoiseOntoTerrain(void)
{
EditTerrain(NULL, FLOAT3D(0,0,0), theApp.m_fNoiseAltitude, TE_ALTITUDE_CONTINOUS_NOISE);
}
void ApplyMinimumOntoTerrain(void)
{
EditTerrain(NULL, FLOAT3D(0,0,0), 1.0f, TE_ALTITUDE_MINIMUM);
}
void ApplyMaximumOntoTerrain(void)
{
EditTerrain(NULL, FLOAT3D(0,0,0), 1.0f, TE_ALTITUDE_MAXIMUM);
}
void ApplyFlattenOntoTerrain(void)
{
EditTerrain(NULL, FLOAT3D(0,0,0), 1.0f, TE_ALTITUDE_FLATTEN);
}
void ApplyPosterizeOntoTerrain(void)
{
EditTerrain(NULL, FLOAT3D(0,0,0), theApp.m_fPosterizeStep, TE_ALTITUDE_POSTERIZE);
}
CEntity *GetEntityForID(ULONG iEntityID)
{
CWorldEditorDoc* pDoc = theApp.GetActiveDocument();
FOREACHINDYNAMICCONTAINER(pDoc->m_woWorld.wo_cenEntities, CEntity, iten)
{
if(iten->en_ulID==iEntityID) return &*iten;
}
return NULL;
}
// constructor
CTerrainUndo::CTerrainUndo()
{
tu_puwUndoBuffer=NULL;
tu_puwRedoBuffer=NULL;
}
void DeleteOneUndo(CTerrainUndo *ptrud)
{
if(ptrud->tu_puwUndoBuffer!=NULL) FreeMemory(ptrud->tu_puwUndoBuffer);
if(ptrud->tu_puwRedoBuffer!=NULL) FreeMemory(ptrud->tu_puwRedoBuffer);
delete ptrud;
}
void DeleteTerrainUndo(CWorldEditorDoc* pDoc)
{
for(INDEX iUndo=0; iUndo<pDoc->m_dcTerrainUndo.Count(); iUndo++)
{
CTerrainUndo *ptu=&pDoc->m_dcTerrainUndo[iUndo];
pDoc->m_dcTerrainUndo.Remove(ptu);
DeleteOneUndo(ptu);
}
}
CTerrain *GetUndoTerrain(ULONG ulEntityID)
{
// obtain terrain entity
CEntity *penTerrain=GetEntityForID(_iTerrainEntityID);
if(penTerrain==NULL)
{
return NULL;
}
// obtain terrain
CTerrain *ptrTerrain=penTerrain->GetTerrain();
return ptrTerrain;
}
void ApplyTerrainUndo(CTerrainUndo *ptrud)
{
CWorldEditorDoc* pDoc = theApp.GetActiveDocument();
CTerrain *ptrTerrain=GetUndoTerrain(ptrud->tu_ulEntityID);
if(ptrTerrain==NULL)
{
DeleteOneUndo(ptrud);
return;
}
// obtain and store redo buffer
if(ptrud->tu_puwRedoBuffer==NULL)
{
ptrud->tu_puwRedoBuffer=GetBufferForEditing(ptrTerrain, ptrud->tu_rcRect,
ptrud->tu_btUndoBufferType, ptrud->tu_iUndoBufferData);
}
// apply buffer change (undo)
SetBufferForEditing(ptrTerrain, ptrud->tu_puwUndoBuffer, ptrud->tu_rcRect,
ptrud->tu_btUndoBufferType, ptrud->tu_iUndoBufferData);
pDoc->m_iCurrentTerrainUndo--;
DiscardLayerDistribution(ptrud->tu_rcRect);
pDoc->SetModifiedFlag( TRUE);
theApp.m_ctTerrainPageCanvas.MarkChanged();
}
void ApplyTerrainRedo(CTerrainUndo *ptrud)
{
CWorldEditorDoc* pDoc = theApp.GetActiveDocument();
CTerrain *ptrTerrain=GetUndoTerrain(ptrud->tu_ulEntityID);
if(ptrTerrain==NULL)
{
DeleteOneUndo(ptrud);
return;
}
if(ptrud->tu_puwRedoBuffer==NULL) return;
// apply buffer change (redo)
SetBufferForEditing(ptrTerrain, ptrud->tu_puwRedoBuffer, ptrud->tu_rcRect,
ptrud->tu_btUndoBufferType, ptrud->tu_iUndoBufferData);
pDoc->m_iCurrentTerrainUndo++;
DiscardLayerDistribution(ptrud->tu_rcRect);
pDoc->SetModifiedFlag( TRUE);
theApp.m_ctTerrainPageCanvas.MarkChanged();
}
UWORD *ExtractUndoRect(PIX pixTerrainWidth)
{
INDEX ctBuffBytes=_rectUndo.Width()*_rectUndo.Height()*sizeof(UWORD);
UWORD *puwBuff=(UWORD*)AllocMemory(ctBuffBytes);
if(puwBuff==NULL) return NULL;
UWORD *puwBuffTemp=puwBuff;
for(INDEX y=_rectUndo.rc_iTop; y<_rectUndo.rc_iBottom; y++)
{
for(INDEX x=_rectUndo.rc_iLeft; x<_rectUndo.rc_iRight; x++)
{
INDEX iOffset=y*pixTerrainWidth+x;
UWORD uwValue=_puwUndoTerrain[iOffset];
*puwBuffTemp=uwValue;
puwBuffTemp++;
}
}
return puwBuff;
}
void TerrainEditBegin(void)
{
if( !(theApp.m_Preferences.ap_iMemoryForTerrainUndo>0))
{
return;
}
_bUndoStart=TRUE;
}
void RemoveRedoList(void)
{
CWorldEditorDoc* pDoc = theApp.GetActiveDocument();
CDynamicContainer<CTerrainUndo> dcTemp;
for( INDEX itu=0; itu<pDoc->m_iCurrentTerrainUndo+1; itu++)
{
dcTemp.Add(&pDoc->m_dcTerrainUndo[itu]);
}
for( INDEX ituDel=pDoc->m_iCurrentTerrainUndo+1; ituDel<pDoc->m_dcTerrainUndo.Count(); ituDel++)
{
DeleteOneUndo(&pDoc->m_dcTerrainUndo[ituDel]);
}
pDoc->m_dcTerrainUndo.MoveContainer(dcTemp);
}
void LimitMemoryConsumption(INDEX iNewConsumption)
{
CWorldEditorDoc* pDoc = theApp.GetActiveDocument();
INDEX ctUndos=pDoc->m_dcTerrainUndo.Count();
INDEX iLastValid=-1;
INDEX iSum=iNewConsumption;
for(INDEX iUndo=ctUndos-1; iUndo>=0; iUndo--)
{
CTerrainUndo *ptu=&pDoc->m_dcTerrainUndo[iUndo];
INDEX iMemory=ptu->tu_rcRect.Width()*ptu->tu_rcRect.Height()*sizeof(UWORD);
if(ptu->tu_puwRedoBuffer!=NULL)
{
iSum=iSum+iMemory*2;
}
else
{
iSum=iSum+iMemory;
}
if(iSum>theApp.m_Preferences.ap_iMemoryForTerrainUndo*1024*1024)
{
iLastValid=iUndo+1;
break;
}
}
if( iLastValid!=-1)
{
CDynamicContainer<CTerrainUndo> dcTemp;
for( INDEX itu=iLastValid; itu<ctUndos; itu++)
{
dcTemp.Add(&pDoc->m_dcTerrainUndo[itu]);
}
for( INDEX ituDel=0; ituDel<iLastValid; ituDel++)
{
DeleteOneUndo(&pDoc->m_dcTerrainUndo[ituDel]);
}
pDoc->m_dcTerrainUndo.MoveContainer(dcTemp);
if(pDoc->m_iCurrentTerrainUndo>=iLastValid)
{
pDoc->m_iCurrentTerrainUndo=pDoc->m_iCurrentTerrainUndo-iLastValid;
}
}
}
void TerrainEditEnd(void)
{
if( !(theApp.m_Preferences.ap_iMemoryForTerrainUndo>0))
{
return;
}
CWorldEditorDoc* pDoc = theApp.GetActiveDocument();
// obtain terrain entity
CEntity *penTerrain=GetEntityForID(_iTerrainEntityID);
if(penTerrain==NULL)
{
if(_puwUndoTerrain!=NULL)
{
FreeMemory(_puwUndoTerrain);
_puwUndoTerrain=NULL;
}
return;
}
// obtain terrain
CTerrain *ptrTerrain=penTerrain->GetTerrain();
if(ptrTerrain==NULL)
{
if(_puwUndoTerrain!=NULL)
{
FreeMemory(_puwUndoTerrain);
_puwUndoTerrain=NULL;
}
return;
}
// we will add undo, clear all existing redo's
RemoveRedoList();
// remember undo
CTerrainUndo *ptrud=new CTerrainUndo;
INDEX iNewConsumption=_rectUndo.Width()*_rectUndo.Height()*sizeof(UWORD);
LimitMemoryConsumption(iNewConsumption);
ptrud->tu_ulEntityID=_iTerrainEntityID;
ptrud->tu_rcRect=_rectUndo;
ptrud->tu_btUndoBufferType=_btUndoBufferType;
ptrud->tu_iUndoBufferData=_iUndoBufferData;
ptrud->tu_puwUndoBuffer=ExtractUndoRect(ptrTerrain->tr_pixHeightMapWidth);
if(ptrud->tu_puwUndoBuffer!=NULL)
{
pDoc->m_dcTerrainUndo.Add(ptrud);
}
else
{
delete ptrud;
}
pDoc->m_iCurrentTerrainUndo=pDoc->m_dcTerrainUndo.Count()-1;
// release obtained terrain buffer
if(_puwUndoTerrain!=NULL)
{
FreeMemory(_puwUndoTerrain);
_puwUndoTerrain=NULL;
}
}
CTileInfo::CTileInfo()
{
ti_ix=-1;
ti_iy=-1;
ti_bSwapXY=FALSE;
ti_bFlipX=FALSE;
ti_bFlipY=FALSE;
}
void ObtainLayerTileInfo(CDynamicContainer<CTileInfo> *pdcTileInfo, CTextureData *ptdTexture, INDEX &ctTilesPerRow)
{
CTFileName fnTexture=ptdTexture->GetName();
CTFileName fnTileInfo=fnTexture.NoExt()+CTString(".tli");
INDEX ctParsedLines=0;
try
{
char achrLine[ 256];
CTFileStream strm;
strm.Open_t( fnTileInfo);
FOREVER
{
CDynamicContainer<CTString> dcTokens;
strm.GetLine_t(achrLine, 256);
ctParsedLines++;
char achrSeparators[] = " ,";
char *pchrToken = strtok( achrLine, achrSeparators);
while( pchrToken != NULL )
{
CTString *pstrToken=new CTString();
*pstrToken=CTString( pchrToken);
dcTokens.Add(pstrToken);
// next token
pchrToken = strtok( NULL, achrSeparators);
}
// if no tokens parsed
if(dcTokens.Count()==0) continue;
INDEX iToken=0;
// analyze parsed tokens
if(dcTokens[iToken]=="TilesPerRow")
{
// there must be at least 1 token for 'TilesPerRow' indentifier
if(dcTokens.Count()-1-iToken<1)
{
throw("You must enter number of tiles per raw.");
}
ctTilesPerRow=0;
INDEX iResultTPR=sscanf(dcTokens[iToken+1], "%d", &ctTilesPerRow);
if(iResultTPR<=0)
{
ctTilesPerRow=0;
throw("Unable to parse count of tiles per row.");
}
}
else if(dcTokens[iToken]=="Tile")
{
// there must be at least 2 tokens for 'Tile' indentifier
if(dcTokens.Count()-1-iToken<2)
{
throw("You must enter 2 coordinates per tile.");
}
INDEX x,y;
INDEX iResultX=sscanf(dcTokens[iToken+1], "%d", &x);
if(iResultX<=0)
{
throw("Unable to parse x coordinate.");
}
INDEX iResultY=sscanf(dcTokens[iToken+2], "%d", &y);
if(iResultY<=0)
{
throw("Unable to parse y coordinate.");
}
if(x<=0 || y<=0)
{
throw("Tile coordinates must be greater than 0.");
}
// jump over coordinate tokens
iToken+=3;
// add tile info
CTileInfo *pti=new CTileInfo();
pti->ti_ix=x-1;
pti->ti_iy=y-1;
for( INDEX iFlagToken=iToken; iFlagToken<dcTokens.Count(); iFlagToken++)
{
if(dcTokens[iFlagToken]=="SwapXY")
{
pti->ti_bSwapXY=TRUE;
}
else if(dcTokens[iFlagToken]=="FlipX")
{
pti->ti_bFlipX=TRUE;
}
else if(dcTokens[iFlagToken]==";")
{
break;
}
else if(dcTokens[iFlagToken]=="FlipY")
{
pti->ti_bFlipY=TRUE;
}
else
{
throw("Unrecognizable character found.");
}
}
pdcTileInfo->Add(pti);
}
// clear allocated tokens
for(INDEX i=0; i<dcTokens.Count(); i++)
{
delete &dcTokens[i];
}
dcTokens.Clear();
}
}
catch(char *strError)
{
(void) strError;
}
}
void TilePaintTool(void)
{
CTerrain *ptrTerrain=GetTerrain();
CTerrainLayer *ptlLayer=GetLayer();
if(ptrTerrain==NULL || ptlLayer==NULL || ptlLayer->tl_ltType!=LT_TILE || ptlLayer->tl_ptdTexture==NULL) return;
CDynamicContainer<CTileInfo> dcTileInfo;
INDEX ctTilesPerRaw=0;
ObtainLayerTileInfo( &dcTileInfo, ptlLayer->tl_ptdTexture, ctTilesPerRaw);
INDEX ctTiles=dcTileInfo.Count();
if(ctTilesPerRaw==0 || ctTiles==0) return;
ptlLayer->SetTilesPerRow(ctTilesPerRaw);
ptlLayer->tl_iSelectedTile= Clamp( ptlLayer->tl_iSelectedTile, (INDEX)0, INDEX(ctTiles-1) );
if(ptlLayer->tl_iSelectedTile==-1) return;
CTileInfo &ti=dcTileInfo[ptlLayer->tl_iSelectedTile];
// _rect holds terrain size
if(_fStrength>0)
{
UWORD uwValue=
dcTileInfo[ptlLayer->tl_iSelectedTile].ti_iy*ctTilesPerRaw+
dcTileInfo[ptlLayer->tl_iSelectedTile].ti_ix;
if(ti.ti_bFlipX) uwValue|=TL_FLIPX;
if(ti.ti_bFlipY) uwValue|=TL_FLIPY;
if(ti.ti_bSwapXY) uwValue|=TL_SWAPXY;
uwValue|=TL_VISIBLE;
_puwBuffer[0]=uwValue<<8;
}
else
{
_puwBuffer[0]=0;
}
/*
vidjeti sta ne radi sa brisanjem tile-ova
ne pogadja se dobro lokacija tile-a ispod misa
+view layer on/off ne discarda pretender texture
+ne crta se dobro trenutno selektirani tile i preklapa se animirani (under mouse)
+rotirane i flipane tileove crtati
+nesto zapinje kad se prvi put otvara info window
+ubaciti skrolanje tileova na mouse wheel
+pick tile
*/
// free allocated tile info structures
for(INDEX i=0; i<dcTileInfo.Count(); i++)
{
delete &dcTileInfo[i];
}
dcTileInfo.Clear();
}
void EditTerrain(CTextureData *ptdBrush, FLOAT3D &vHitPoint, FLOAT fStrength, ETerrainEdit teTool)
{
_ptdBrush=ptdBrush;
_fStrength=fStrength;
CTerrain *ptrTerrain=GetTerrain();
CTerrainLayer *ptlLayer=GetLayer();
INDEX iLayer=GetLayerIndex();
if(ptrTerrain==NULL || ptlLayer==NULL) return;
// obtain buffer type
BufferType btBufferType=BT_INVALID;
INDEX iBufferData=-1;
if( (teTool>TE_BRUSH_ALTITUDE_START && teTool<TE_BRUSH_ALTITUDE_END) ||
(teTool>TE_ALTITUDE_START && teTool<TE_ALTITUDE_END) ||
(teTool==TE_GENERATE_TERRAIN) ||
(teTool==TE_ALTITUDE_EQUALIZE) )
{
btBufferType=BT_HEIGHT_MAP;
}
else if( (teTool>TE_BRUSH_LAYER_START && teTool<TE_BRUSH_LAYER_END) ||
(teTool>TE_LAYER_START && teTool<TE_LAYER_END) ||
teTool==TE_TILE_PAINT)
{
btBufferType=BT_LAYER_MASK;
iBufferData=iLayer;
}
else if( teTool>TE_BRUSH_EDGE_START && teTool<TE_BRUSH_EDGE_END)
{
btBufferType=BT_EDGE_MAP;
}
else
{
return;
}
_puwBuffer=NULL;
_srcExtraW=0;
_srcExtraH=0;
if( teTool==TE_BRUSH_ALTITUDE_SMOOTH ||
teTool==TE_BRUSH_ALTITUDE_FILTER ||
teTool==TE_BRUSH_LAYER_SMOOTH ||
teTool==TE_ALTITUDE_SMOOTH ||
teTool==TE_ALTITUDE_FILTER ||
teTool==TE_LAYER_SMOOTH ||
teTool==TE_LAYER_FILTER)
{
_srcExtraW=2;
_srcExtraH=2;
}
// extract source rectangle
Point pt=Calculate2dHitPoint(ptrTerrain, vHitPoint);
// perform operation on brush rect
if(teTool==TE_TILE_PAINT)
{
_rect.rc_iLeft=pt.pt_iX;
_rect.rc_iRight=_rect.rc_iLeft+1;
_rect.rc_iTop=pt.pt_iY;
_rect.rc_iBottom=_rect.rc_iTop+1;
}
else if(_ptdBrush!=NULL)
{
_rect.rc_iLeft=pt.pt_iX-ptdBrush->GetPixWidth()/2-_srcExtraW;
_rect.rc_iRight=pt.pt_iX+(ptdBrush->GetPixWidth()-ptdBrush->GetPixWidth()/2)+_srcExtraW;
_rect.rc_iTop=pt.pt_iY-ptdBrush->GetPixHeight()/2-_srcExtraH;
_rect.rc_iBottom=pt.pt_iY+(ptdBrush->GetPixHeight()-ptdBrush->GetPixHeight()/2)+_srcExtraH;
}
// perform operation on whole terrain area
else
{
_rect.rc_iLeft=0;
_rect.rc_iRight=ptrTerrain->tr_pixHeightMapWidth;
_rect.rc_iTop=0;
_rect.rc_iBottom=ptrTerrain->tr_pixHeightMapHeight;
}
Rect rectTerrain;
rectTerrain.rc_iLeft=0;
rectTerrain.rc_iTop=0;
rectTerrain.rc_iRight=ptrTerrain->tr_pixHeightMapWidth;
rectTerrain.rc_iBottom=ptrTerrain->tr_pixHeightMapHeight;
BOOL bAutoRememberUndo=FALSE;
// if should apply undo for whole terrain
if( (teTool>TE_ALTITUDE_START && teTool<TE_ALTITUDE_END) ||
(teTool>TE_LAYER_START && teTool<TE_LAYER_END) ||
(teTool==TE_GENERATE_TERRAIN) ||
(teTool==TE_ALTITUDE_EQUALIZE) )
{
TerrainEditBegin();
bAutoRememberUndo=TRUE;
}
// edit start, undo starts
if(_bUndoStart)
{
_bUndoStart=FALSE;
_btUndoBufferType=btBufferType;
_iUndoBufferData=iBufferData;
_rectUndo=_rect;
_iTerrainEntityID=ptrTerrain->tr_penEntity->en_ulID;
_puwUndoTerrain=GetBufferForEditing(ptrTerrain, rectTerrain, btBufferType, iBufferData);
}
// editing in progress, update undo data
else
{
// update undo rect
if(_rect.rc_iLeft < _rectUndo.rc_iLeft) _rectUndo.rc_iLeft=_rect.rc_iLeft;
if(_rect.rc_iRight > _rectUndo.rc_iRight) _rectUndo.rc_iRight=_rect.rc_iRight;
if(_rect.rc_iTop < _rectUndo.rc_iTop) _rectUndo.rc_iTop=_rect.rc_iTop;
if(_rect.rc_iBottom > _rectUndo.rc_iBottom) _rectUndo.rc_iBottom=_rect.rc_iBottom;
}
// clamp undo rect to terrain size
_rectUndo.rc_iLeft=Clamp(_rectUndo.rc_iLeft, rectTerrain.rc_iLeft, rectTerrain.rc_iRight);
_rectUndo.rc_iRight=Clamp(_rectUndo.rc_iRight, rectTerrain.rc_iLeft, rectTerrain.rc_iRight);
_rectUndo.rc_iTop=Clamp(_rectUndo.rc_iTop, rectTerrain.rc_iTop, rectTerrain.rc_iBottom);
_rectUndo.rc_iBottom=Clamp(_rectUndo.rc_iBottom, rectTerrain.rc_iTop, rectTerrain.rc_iBottom);
// obtain buffer
_puwBuffer=GetBufferForEditing(ptrTerrain, _rect, btBufferType, iBufferData);
switch( teTool)
{
case TE_BRUSH_ALTITUDE_PAINT:
{
ApplyAddPaint(MIN_UWORD,MAX_UWORD);
break;
}
case TE_BRUSH_EDGE_ERASE:
{
_fStrength=-fStrength;
ApplyAddPaint(MIN_UWORD,MAX_UWORD);
break;
}
case TE_BRUSH_LAYER_PAINT:
{
_fStrength=fStrength*32.0f;
ApplyAddPaint(MIN_UWORD,MAX_UWORD);
break;
}
case TE_BRUSH_ALTITUDE_SMOOTH:
case TE_BRUSH_LAYER_SMOOTH:
case TE_ALTITUDE_SMOOTH:
case TE_LAYER_SMOOTH:
{
_fStrength=fStrength*theApp.m_fSmoothPower;
ApplyFilterMatrix(_afFilterBlurMore);
break;
}
case TE_BRUSH_ALTITUDE_FILTER:
case TE_BRUSH_LAYER_FILTER:
case TE_LAYER_FILTER:
case TE_ALTITUDE_FILTER:
{
_fStrength=fStrength*theApp.m_fFilterPower;
switch(theApp.m_iFilter)
{
case FLT_FINEBLUR: ApplyFilterMatrix(_afFilterFineBlur ); break;
case FLT_SHARPEN: ApplyFilterMatrix(_afFilterSharpen ); break;
case FLT_EMBOSS: ApplyFilterMatrix(_afFilterEmboss ); break;
case FLT_EDGEDETECT: ApplyFilterMatrix(_afFilterEdgeDetect ); break;
}
break;
}
case TE_BRUSH_ALTITUDE_MINIMUM:
case TE_ALTITUDE_MINIMUM:
{
_fStrength=0;
ApplyAddPaint(theApp.m_uwEditAltitude,MAX_UWORD);
break;
}
case TE_BRUSH_ALTITUDE_MAXIMUM:
case TE_ALTITUDE_MAXIMUM:
{
_fStrength=0;
ApplyAddPaint(MIN_UWORD, theApp.m_uwEditAltitude);
break;
}
case TE_BRUSH_ALTITUDE_FLATTEN:
case TE_ALTITUDE_FLATTEN:
{
_fStrength=0;
ApplyAddPaint(theApp.m_uwEditAltitude, theApp.m_uwEditAltitude);
break;
}
case TE_BRUSH_ALTITUDE_POSTERIZE:
case TE_ALTITUDE_POSTERIZE:
{
ApplyPosterize();
break;
}
case TE_BRUSH_ALTITUDE_RND_NOISE:
case TE_BRUSH_LAYER_RND_NOISE:
case TE_ALTITUDE_RND_NOISE:
case TE_LAYER_RND_NOISE:
{
ApplyRNDNoise();
break;
}
case TE_BRUSH_ALTITUDE_CONTINOUS_NOISE:
case TE_BRUSH_LAYER_CONTINOUS_NOISE:
case TE_ALTITUDE_CONTINOUS_NOISE:
case TE_LAYER_CONTINOUS_NOISE:
{
if(!SetupContinousNoiseTexture()) return;
ApplyContinousNoise();
FreeContinousNoiseTexture();
break;
}
case TE_GENERATE_TERRAIN:
{
GenerateTerrain();
break;
}
case TE_ALTITUDE_EQUALIZE:
{
EqualizeBuffer();
break;
}
case TE_CLEAR_LAYER_MASK:
{
for(INDEX i=0; i<_rect.Width()*_rect.Height(); i++)
{
_puwBuffer[i]=0;
}
break;
}
case TE_FILL_LAYER_MASK:
{
for(INDEX i=0; i<_rect.Width()*_rect.Height(); i++)
{
_puwBuffer[i]=MAX_UWORD;
}
break;
}
case TE_TILE_PAINT:
{
TilePaintTool();
break;
}
}
// apply buffer change
SetBufferForEditing(ptrTerrain, _puwBuffer, _rect, btBufferType, iBufferData);
theApp.GetActiveDocument()->SetModifiedFlag( TRUE);
FreeMemory(_puwBuffer);
// mark rect for layer distribution updating
if(teTool!=TE_TILE_PAINT)
{
DiscardLayerDistribution(_rect);
}
theApp.m_ctTerrainPageCanvas.MarkChanged();
if(bAutoRememberUndo)
{
TerrainEditEnd();
}
}
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