namespace Server.Engines.Mahjong
{
  public struct MahjongPieceDim
  {
    public Point2D Position{ get; }

    public int Width{ get; }

    public int Height{ get; }

    public MahjongPieceDim(Point2D position, int width, int height)
    {
      Position = position;
      Width = width;
      Height = height;
    }

    public bool IsValid()
    {
      return Position.X >= 0 && Position.Y >= 0 && Position.X + Width <= 670 && Position.Y + Height <= 670;
    }

    public bool IsOverlapping(MahjongPieceDim dim)
    {
      return Position.X < dim.Position.X + dim.Width && Position.Y < dim.Position.Y + dim.Height &&
             Position.X + Width > dim.Position.X && Position.Y + Height > dim.Position.Y;
    }

    public int GetHandArea()
    {
      if (Position.X + Width > 150 && Position.X < 520 && Position.Y < 35)
        return 0;

      if (Position.X + Width > 635 && Position.Y + Height > 150 && Position.Y < 520)
        return 1;

      if (Position.X + Width > 150 && Position.X < 520 && Position.Y + Height > 635)
        return 2;

      if (Position.X < 35 && Position.Y + Height > 150 && Position.Y < 520)
        return 3;

      return -1;
    }
  }
}