protected override void ComputeSingleStep()
{
if (i >= toCheck.Length)
{
Done = true;
return;
}
Index2 tile = toCheck[i];
i++;
Angle angle = ToAngle(lightPosition - tile);
if (obstacles[tile.X, tile.Y] > 0)
{
float increment = MathHelper.TwoPi / (8 * (tile - lightPosition).Length());
obstructedArea.Add(new AnglePair(angle - 0.5f * increment, angle + 0.5f * increment));
ComputeSingleStep();
return;
}
if (obstructedArea.ContainsAny(angle))
{
ComputeSingleStep();
return;
}
Current = tile;
}
