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added square light volume, and automatic light radius.

develop
Japa 2013-06-25 23:13:55 +05:30
parent 57e68aaee9
commit f4923d6974
2 changed files with 35 additions and 8 deletions
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38
plugins/rendermax/renderer_light.cpp
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@ -30,6 +30,22 @@ using df::coord2d;
const float levelDim=0.2f;
const float RootTwo = 1.4142135623730950488016887242097f;
lightSource::lightSource(lightCell power,int radius):power(power),flicker(false)
{
if(radius >= 0)
this->radius = radius;
else
{
float totalPower = power.r;
if(totalPower < power.g)totalPower = power.g;
if(totalPower < power.b)totalPower = power.b;
if(totalPower > 0 && levelDim > 0)
this->radius = (int)((log(levelDim/totalPower)/log(0.85f))) + 1;
else
this->radius = 0;
}
}
rect2d getMapViewport()
{
const int AREA_MAP_WIDTH = 23;
@ -99,6 +115,20 @@ void plotCircle(int xm, int ym, int r,std::function<void(int,int)> setPixel)
if (r > x || err > y) err += ++x*2+1; /* e_xy+e_x > 0 or no 2nd y-step */
} while (x < 0);
}
void plotSquare(int xm, int ym, int r,std::function<void(int,int)> setPixel)
{
for(int x = 0; x <= r; x++)
{
setPixel(xm+r, ym+x); /* I.1 Quadrant */
setPixel(xm+x, ym+r); /* I.2 Quadrant */
setPixel(xm+r, ym-x); /* II.1 Quadrant */
setPixel(xm+x, ym-r); /* II.2 Quadrant */
setPixel(xm-r, ym-x); /* III.1 Quadrant */
setPixel(xm-x, ym-r); /* III.2 Quadrant */
setPixel(xm-r, ym+x); /* IV.1 Quadrant */
setPixel(xm-x, ym+r); /* IV.2 Quadrant */
}
}
void plotLine(int x0, int y0, int x1, int y1,std::function<bool(int,int,int,int)> setPixel)
{
int dx = abs(x1-x0), sx = x0<x1 ? 1 : -1;
@ -204,7 +234,7 @@ void lightingEngineViewscreen::doFovs()
surrounds += lightUpCell(curPower = power,-1, 1,i-1, j+1);
}
if(surrounds)
plotCircle(i,j,radius,
plotSquare(i,j,radius,
std::bind(&lightingEngineViewscreen::doRay,this,power,i,j,_1,_2));
}
}
@ -432,7 +462,7 @@ void lightingEngineViewscreen::doSun(const lightSource& sky,MapExtras::MapCache&
void lightingEngineViewscreen::doOcupancyAndLights()
{
// TODO better curve (+red dawn ?)
float daycol = 1;//abs((*df::global::cur_year_tick % 1200) - 600.0) / 400.0;
float daycol = 0;//abs((*df::global::cur_year_tick % 1200) - 600.0) / 400.0;
lightCell sky_col(daycol, daycol, daycol);
lightSource sky(sky_col, 15);
@ -572,8 +602,8 @@ void lightingEngineViewscreen::doOcupancyAndLights()
}
if(df::global::cursor->x>-30000)
{
lightSource cursor(lightCell(0.96f,0.84f,0.03f),11);
cursor.flicker=false;
//lightSource cursor(lightCell(9.6f,8.4f,0.3f),-1);
//cursor.flicker=false;
int wx=df::global::cursor->x-window_x+vp.first.x;
int wy=df::global::cursor->y-window_y+vp.first.y;
int tile=getIndex(wx,wy);

5
plugins/rendermax/renderer_light.hpp
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@ -88,10 +88,7 @@ struct lightSource
{
}
lightSource(lightCell power,int radius):power(power),radius(radius),flicker(false)
{
}
lightSource(lightCell power,int radius);
float powerSquared()const
{
return power.r*power.r+power.g*power.g+power.b*power.b;