protected static IReadOnlyList <Light> GetComplexLight(int x, int y, LightColor color, Direction dir)
{
var result = new List <Light>(3);
if (color.HasFlag(LightColor.Red))
{
result.Add(new ShortLight(x, y, LightColor.Red, dir));
}
if (color.HasFlag(LightColor.Green))
{
result.Add(new ShortLight(x, y, LightColor.Green, dir));
}
if (color.HasFlag(LightColor.Blue))
{
result.Add(new ShortLight(x, y, LightColor.Blue, dir));
}
return(result.Count > 0 ? result : null);
}
