public LightNode MarchLightTree(LightSource source, Dictionary <PlayObject, List <LightBeam> > collisions, int maxDepth)
{
LightNode root = new LightNode {
Object = source,
Position = WorldPositionToGrid(source.transform.position),
LightBeams = source.ComputeOutgoingLightBeams(null)
};
foreach (LightBeam lightBeam in root.LightBeams)
{
root.LightNodes.Add(March(root.Position, lightBeam, collisions, maxDepth));
}
return(root);
}