public Color[] DoSomething(Light[] lights, Color ambient, bool[,] obstacles, Rectangle renderArea, Rectangle influenceArea, int downscale)
{
scale = 1f / downscale;
lightArray = new LightArray(renderArea.Width * renderArea.Height, ambient);
Light[] smallerLights = new Light[lights.Length];
Rectangle smallerRenderArea = new Rectangle((int)(renderArea.X * scale), (int)(renderArea.Y * scale), (int)(renderArea.Width * scale), (int)(renderArea.Height * scale));
Rectangle smallerInfluenceArea = new Rectangle((int)(influenceArea.X * scale), (int)(influenceArea.Y * scale), (int)(influenceArea.Width * scale), (int)(influenceArea.Height * scale));
for (int i = 0; i < smallerLights.Length; i++)
{
smallerLights[i] = new Light(lights[i].Position * scale, (short)(lights[i].Radius * scale), lights[i].Brightness, lights[i].Color);
DebugRenderer.AddDebugObjectWorldSingleCall(new DebugLight(lights[i], Color.AliceBlue));
}
Index2[][] pointsToCheck = new Index2[lights.Length][];
for (int i = 0; i < smallerLights.Length; i++)
{
pointsToCheck[i] = Circle.CalculateEdge(smallerLights[i].Position, smallerLights[i].Radius);
foreach (var currentPoint in pointsToCheck[i])
{
if (smallerRenderArea.Contains(currentPoint) || smallerRenderArea.Contains(smallerLights[i].Position))
{
foreach (var raycast in new LightRaycast(smallerLights[i], smallerLights[i].Position, currentPoint))
{
if (!smallerInfluenceArea.Contains(raycast)) //TODO: Use binarysearch
{
continue;
}
int x = raycast.X - smallerRenderArea.X;
int y = raycast.Y - smallerRenderArea.Y;
if (obstacles[x, y])
{
break;
}
if (!smallerRenderArea.Contains(raycast))
{
continue;
}
for (int xOff = 0; xOff < downscale; xOff++)
{
for (int yOff = 0; yOff < downscale; yOff++)
{
lightArray.Set((downscale * y + yOff) * renderArea.Width + (downscale * x + xOff), smallerLights[i].Color);
}
}
}
}
}
}
return(lightArray.ToColorArray());
}
