Reorganizes Project (#41)

Projects/Scripts/Items/Games/Mahjong/MahjongTile.cs

@@ -0,0 +1,88 @@
+namespace Server.Engines.Mahjong
+{
+  public class MahjongTile
+  {
+    protected Point2D m_Position;
+
+    public MahjongTile(MahjongGame game, int number, MahjongTileType value, Point2D position, int stackLevel,
+      MahjongPieceDirection direction, bool flipped)
+    {
+      Game = game;
+      Number = number;
+      Value = value;
+      m_Position = position;
+      StackLevel = stackLevel;
+      Direction = direction;
+      Flipped = flipped;
+    }
+
+    public MahjongTile(MahjongGame game, GenericReader reader)
+    {
+      Game = game;
+
+      int version = reader.ReadInt();
+
+      Number = reader.ReadInt();
+      Value = (MahjongTileType)reader.ReadInt();
+      m_Position = reader.ReadPoint2D();
+      StackLevel = reader.ReadInt();
+      Direction = (MahjongPieceDirection)reader.ReadInt();
+      Flipped = reader.ReadBool();
+    }
+
+    public MahjongGame Game{ get; }
+
+    public int Number{ get; }
+
+    public MahjongTileType Value{ get; }
+
+    public Point2D Position => m_Position;
+    public int StackLevel{ get; private set; }
+
+    public MahjongPieceDirection Direction{ get; private set; }
+
+    public bool Flipped{ get; private set; }
+
+    public MahjongPieceDim Dimensions => GetDimensions(m_Position, Direction);
+
+    public bool IsMovable => Game.GetStackLevel(Dimensions) <= StackLevel;
+
+    public static MahjongPieceDim GetDimensions(Point2D position, MahjongPieceDirection direction)
+    {
+      if (direction == MahjongPieceDirection.Up || direction == MahjongPieceDirection.Down)
+        return new MahjongPieceDim(position, 20, 30);
+      return new MahjongPieceDim(position, 30, 20);
+    }
+
+    public void Move(Point2D position, MahjongPieceDirection direction, bool flip, int validHandArea)
+    {
+      MahjongPieceDim dim = GetDimensions(position, direction);
+      int curHandArea = Dimensions.GetHandArea();
+      int newHandArea = dim.GetHandArea();
+
+      if (!IsMovable || !dim.IsValid() || validHandArea >= 0 &&
+          (curHandArea >= 0 && curHandArea != validHandArea || newHandArea >= 0 && newHandArea != validHandArea))
+        return;
+
+      m_Position = position;
+      Direction = direction;
+      StackLevel = -1; // Avoid self interference
+      StackLevel = Game.GetStackLevel(dim) + 1;
+      Flipped = flip;
+
+      Game.Players.SendTilePacket(this, true, true);
+    }
+
+    public void Save(GenericWriter writer)
+    {
+      writer.Write(0); // version
+
+      writer.Write(Number);
+      writer.Write((int)Value);
+      writer.Write(m_Position);
+      writer.Write(StackLevel);
+      writer.Write((int)Direction);
+      writer.Write(Flipped);
+    }
+  }
+}