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@ -222,7 +222,7 @@ void plotSquare(int xm, int ym, int r,std::function<void(int,int)> setPixel)
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setPixel(xm-x, ym+r); /* IV.2 Quadrant */
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setPixel(xm-x, ym+r); /* IV.2 Quadrant */
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}
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}
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}
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}
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void plotLine(int x0, int y0, int x1, int y1,std::function<bool(int,int,int,int)> setPixel)
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void plotLine(int x0, int y0, int x1, int y1,lightCell power,std::function<lightCell(lightCell,int,int,int,int)> setPixel)
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{
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{
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int dx = abs(x1-x0), sx = x0<x1 ? 1 : -1;
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int dx = abs(x1-x0), sx = x0<x1 ? 1 : -1;
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int dy = -abs(y1-y0), sy = y0<y1 ? 1 : -1;
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int dy = -abs(y1-y0), sy = y0<y1 ? 1 : -1;
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@ -231,8 +231,11 @@ void plotLine(int x0, int y0, int x1, int y1,std::function<bool(int,int,int,int)
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int rdy=0;
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int rdy=0;
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for(;;){ /* loop */
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for(;;){ /* loop */
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if(rdx!=0 || rdy!=0) //dirty hack to skip occlusion on the first tile.
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if(rdx!=0 || rdy!=0) //dirty hack to skip occlusion on the first tile.
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if(!setPixel(rdx,rdy,x0,y0))
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{
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power=setPixel(power,rdx,rdy,x0,y0);
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if(power.dot(power)<0.00001f)
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return;
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return;
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}
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if (x0==x1 && y0==y1) break;
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if (x0==x1 && y0==y1) break;
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e2 = 2*err;
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e2 = 2*err;
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rdx=rdy=0;
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rdx=rdy=0;
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@ -240,6 +243,56 @@ void plotLine(int x0, int y0, int x1, int y1,std::function<bool(int,int,int,int)
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if (e2 <= dx) { err += dx; y0 += sy; rdy=sy;} /* e_xy+e_y < 0 */
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if (e2 <= dx) { err += dx; y0 += sy; rdy=sy;} /* e_xy+e_y < 0 */
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}
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}
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}
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}
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void plotLineAA(int x0, int y0, int x1, int y1,lightCell power,std::function<lightCell(lightCell,int,int,int,int)> setPixelAA)
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{
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int dx = abs(x1-x0), sx = x0<x1 ? 1 : -1;
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int dy = abs(y1-y0), sy = y0<y1 ? 1 : -1;
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int err = dx-dy, e2, x2; /* error value e_xy */
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int ed = dx+dy == 0 ? 1 : sqrt((float)dx*dx+(float)dy*dy);
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int rdx=0;
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int rdy=0;
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int lrdx,lrdy;
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lightCell sumPower;
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for ( ; ; ){ /* pixel loop */
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float strsum=0;
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float str=1-abs(err-dx+dy)/(float)ed;
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strsum=str;
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sumPower=setPixelAA(power*str,rdx,rdy,x0,y0);
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e2 = err; x2 = x0;
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lrdx=rdx;
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lrdy=rdy;
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rdx=rdy=0;
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if (2*e2 >= -dx) { /* x step */
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if (x0 == x1) break;
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if (e2+dy < ed)
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{
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str=1-(e2+dy)/(float)ed;
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sumPower+=setPixelAA(power*str,lrdx,lrdy,x0,y0+sy);
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strsum+=str;
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}
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err -= dy; x0 += sx; rdx=sx;
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}
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if (2*e2 <= dy) { /* y step */
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if (y0 == y1) break;
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if (dx-e2 < ed)
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{
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str=1-(dx-e2)/(float)ed;
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sumPower+=setPixelAA(power*str,lrdx,lrdy,x2+sx,y0);
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strsum+=str;
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}
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err += dx; y0 += sy; rdy=sy;
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}
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if(strsum<0.001f)
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return;
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sumPower=sumPower/strsum;
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if(sumPower.dot(sumPower)<0.00001f)
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return;
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power=sumPower;
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}
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}
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lightCell blendMax(lightCell a,lightCell b)
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lightCell blendMax(lightCell a,lightCell b)
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{
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{
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return lightCell(std::max(a.r,b.r),std::max(a.g,b.g),std::max(a.b,b.b));
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return lightCell(std::max(a.r,b.r),std::max(a.g,b.g),std::max(a.b,b.b));
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@ -248,7 +301,7 @@ lightCell blend(lightCell a,lightCell b)
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{
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{
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return blendMax(a,b);
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return blendMax(a,b);
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}
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}
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bool lightingEngineViewscreen::lightUpCell(std::vector<lightCell> & target, lightCell& power,int dx,int dy,int tx,int ty)
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lightCell lightingEngineViewscreen::lightUpCell(std::vector<lightCell> & target,lightCell power,int dx,int dy,int tx,int ty)
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{
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{
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if(isInViewport(coord2d(tx,ty),mapPort))
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if(isInViewport(coord2d(tx,ty),mapPort))
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{
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{
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@ -271,12 +324,12 @@ bool lightingEngineViewscreen::lightUpCell(std::vector<lightCell> & target, ligh
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if (dsq>0 && !wallhack)
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if (dsq>0 && !wallhack)
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{
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{
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power*=v.power(dt);
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power*=v.pow(dt);
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}
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}
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if(ls.radius>0 && dsq>0)
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if(ls.radius>0 && dsq>0)
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{
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{
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if(power<=ls.power)
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if(power<=ls.power)
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return false;
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return lightCell();
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}
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}
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//float dt=sqrt(dsq);
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//float dt=sqrt(dsq);
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lightCell oldCol=target[tile];
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lightCell oldCol=target[tile];
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@ -284,20 +337,20 @@ bool lightingEngineViewscreen::lightUpCell(std::vector<lightCell> & target, ligh
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target[tile]=ncol;
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target[tile]=ncol;
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if(wallhack)
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if(wallhack)
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return false;
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return lightCell();
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float pwsq=power.r*power.r+power.g*power.g+power.b*power.b;
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return pwsq>levelDim*levelDim;
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return power;
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}
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}
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else
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else
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return false;
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return lightCell();
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}
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}
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void lightingEngineViewscreen::doRay(std::vector<lightCell> & target, lightCell power,int cx,int cy,int tx,int ty)
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void lightingEngineViewscreen::doRay(std::vector<lightCell> & target, lightCell power,int cx,int cy,int tx,int ty)
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{
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{
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using namespace std::placeholders;
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using namespace std::placeholders;
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lightCell curPower=power;
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plotLine(cx,cy,tx,ty,std::bind(&lightingEngineViewscreen::lightUpCell,this,std::ref(target),std::ref(curPower),_1,_2,_3,_4));
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}
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plotLine(cx,cy,tx,ty,power,std::bind(&lightingEngineViewscreen::lightUpCell,this,std::ref(target),_1,_2,_3,_4,_5));
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}
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void lightingEngineViewscreen::doLight(std::vector<lightCell> & target, int index)
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void lightingEngineViewscreen::doLight(std::vector<lightCell> & target, int index)
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{
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{
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using namespace std::placeholders;
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using namespace std::placeholders;
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@ -315,21 +368,21 @@ void lightingEngineViewscreen::doLight(std::vector<lightCell> & target, int inde
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radius*=flicker;
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radius*=flicker;
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power=power*flicker;
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power=power*flicker;
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}
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}
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int surrounds = 0;
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lightCell surrounds;
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lightCell curPower;
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lightUpCell(target, curPower = power, 0, 0,i+0, j+0);
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lightUpCell(target,power, 0, 0,i+0, j+0);
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{
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{
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surrounds += lightUpCell(target, curPower = power, 0, 1,i+0, j+1);
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surrounds += lightUpCell(target, power, 0, 1,i+0, j+1);
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surrounds += lightUpCell(target, curPower = power, 1, 1,i+1, j+1);
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surrounds += lightUpCell(target, power, 1, 1,i+1, j+1);
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surrounds += lightUpCell(target, curPower = power, 1, 0,i+1, j+0);
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surrounds += lightUpCell(target, power, 1, 0,i+1, j+0);
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surrounds += lightUpCell(target, curPower = power, 1,-1,i+1, j-1);
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surrounds += lightUpCell(target, power, 1,-1,i+1, j-1);
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surrounds += lightUpCell(target, curPower = power, 0,-1,i+0, j-1);
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surrounds += lightUpCell(target, power, 0,-1,i+0, j-1);
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surrounds += lightUpCell(target, curPower = power,-1,-1,i-1, j-1);
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surrounds += lightUpCell(target, power,-1,-1,i-1, j-1);
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surrounds += lightUpCell(target, curPower = power,-1, 0,i-1, j+0);
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surrounds += lightUpCell(target, power,-1, 0,i-1, j+0);
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surrounds += lightUpCell(target, curPower = power,-1, 1,i-1, j+1);
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surrounds += lightUpCell(target, power,-1, 1,i-1, j+1);
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}
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}
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if(surrounds)
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if(surrounds.dot(surrounds)>0.00001f)
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{
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{
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plotSquare(i,j,radius,
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plotSquare(i,j,radius,
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std::bind(&lightingEngineViewscreen::doRay,this,std::ref(target),power,i,j,_1,_2));
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std::bind(&lightingEngineViewscreen::doRay,this,std::ref(target),power,i,j,_1,_2));
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@ -365,7 +418,6 @@ void lightingEngineViewscreen::calculate()
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}
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}
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doOcupancyAndLights();
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doOcupancyAndLights();
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doFovs();
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doFovs();
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//for each lightsource in viewscreen+x do light
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}
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}
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void lightingEngineViewscreen::updateWindow()
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void lightingEngineViewscreen::updateWindow()
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{
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{
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@ -405,7 +457,7 @@ void lightingEngineViewscreen::addOclusion(int tileId,const lightCell& c,float t
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if(thickness > 0.999 && thickness < 1.001)
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if(thickness > 0.999 && thickness < 1.001)
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ocupancy[tileId]*=c;
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ocupancy[tileId]*=c;
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else
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else
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ocupancy[tileId]*=(c.power(thickness));
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ocupancy[tileId]*=(c.pow(thickness));
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}
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}
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lightCell getStandartColor(int colorId)
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lightCell getStandartColor(int colorId)
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{
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{
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@ -496,7 +548,7 @@ lightCell lightingEngineViewscreen::propogateSun(MapExtras::Block* b, int x,int
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ret*=matIce.transparency;
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ret*=matIce.transparency;
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else if(basicShapeIce==df::tiletype_shape_basic::Floor || basicShapeIce==df::tiletype_shape_basic::Ramp || shapeIce==df::tiletype_shape::STAIR_UP)
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else if(basicShapeIce==df::tiletype_shape_basic::Floor || basicShapeIce==df::tiletype_shape_basic::Ramp || shapeIce==df::tiletype_shape::STAIR_UP)
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if(!lastLevel)
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if(!lastLevel)
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ret*=matIce.transparency.power(1.0f/7.0f);
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ret*=matIce.transparency.pow(1.0f/7.0f);
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}
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}
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lightDef=getMaterial(mat.mat_type,mat.mat_index);
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lightDef=getMaterial(mat.mat_type,mat.mat_index);
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@ -511,7 +563,7 @@ lightCell lightingEngineViewscreen::propogateSun(MapExtras::Block* b, int x,int
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{
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{
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if(!lastLevel)
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if(!lastLevel)
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ret*=lightDef->transparency.power(1.0f/7.0f);
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ret*=lightDef->transparency.pow(1.0f/7.0f);
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}
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}
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else if(shape==df::tiletype_shape::STAIR_DOWN || shape==df::tiletype_shape::STAIR_UPDOWN)
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else if(shape==df::tiletype_shape::STAIR_DOWN || shape==df::tiletype_shape::STAIR_UPDOWN)
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{
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{
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@ -519,11 +571,11 @@ lightCell lightingEngineViewscreen::propogateSun(MapExtras::Block* b, int x,int
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}
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}
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if(d.bits.liquid_type == df::enums::tile_liquid::Water && d.bits.flow_size > 0)
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if(d.bits.liquid_type == df::enums::tile_liquid::Water && d.bits.flow_size > 0)
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{
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{
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ret *=matWater.transparency.power((float)d.bits.flow_size/7.0f);
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ret *=matWater.transparency.pow((float)d.bits.flow_size/7.0f);
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}
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}
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else if(d.bits.liquid_type == df::enums::tile_liquid::Magma && d.bits.flow_size > 0)
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else if(d.bits.liquid_type == df::enums::tile_liquid::Magma && d.bits.flow_size > 0)
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{
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{
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ret *=matLava.transparency.power((float)d.bits.flow_size/7.0f);
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ret *=matLava.transparency.pow((float)d.bits.flow_size/7.0f);
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}
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}
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return ret;
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return ret;
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}
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}
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@ -626,7 +678,7 @@ void lightingEngineViewscreen::doOcupancyAndLights()
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daycol= fmod(dayHour,24.0f)/24.0f; //1->12h 0->24h
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daycol= fmod(dayHour,24.0f)/24.0f; //1->12h 0->24h
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lightCell sky_col=getSkyColor(daycol);
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lightCell sky_col=getSkyColor(daycol);
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lightSource sky(sky_col, 15);//auto calculate best size
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lightSource sky(sky_col, -1);//auto calculate best size
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lightSource candle(lightCell(0.96f,0.84f,0.03f),5);
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lightSource candle(lightCell(0.96f,0.84f,0.03f),5);
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lightSource torch(lightCell(0.9f,0.75f,0.3f),8);
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lightSource torch(lightCell(0.9f,0.75f,0.3f),8);
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