LightRender

if(pixelcolor!=null)
    {
      g.fillRect(x,y,PixelSize,PixelSize);



             LightSource light = getNearestLightSource(pixelpoint);
             light.Brightness =(float) clamp((float)Math.sin(tick)*1,0.0f,1.0f);
             int red = (int) (pixelcolor.getRed());
             int green = (int) (pixelcolor.getGreen());
             int blue = (int) (pixelcolor.getBlue());


             if(light!=null)
             {
              float lightbrightness = light.Brightness;
              float distance_from_lightsource = (float) pixelpoint.distance(light.location);
              float brightperc = (1-(clamp(distance_from_lightsource/light.Range,0.0f,1.0f)))*lightbrightness;



              red = (int) clamp((red*brightperc*lightbrightness),0.0f,255.0f);
              green = (int) clamp((green*brightperc*lightbrightness),0.0f,255.0f);
              blue = (int) clamp((blue*brightperc*lightbrightness),0.0f,255.0f);


              g.setColor(new Color(red,green,blue));

             }
             else       // There is no light nearby
             {
              g.setColor(Color.BLACK);
             }
         }