private void AITurn()
 {
     if (first)
     {
         first = false;
         Debug.Log(String.Format("White Chess Down:{0},{1},{2}", 7, 7, 0));
         boardData[7, 7]     = (GameObject)Instantiate(whiteChessPrefab, new Vector3(7, 0, 7), Quaternion.identity);
         ChessAI.board[7, 7] = 2;
         end = ChessAI.CheckWinner(7, 7, 2);
         Debug.Log(end);
         role = 1;
         return;
     }
     int[] maxPoint = ChessAI.NextMove(role);
     Debug.Log(String.Format("White Chess Down:{0},{1},{2}", maxPoint[0], maxPoint[1], maxPoint[2]));
     boardData[maxPoint[0], maxPoint[1]]     = (GameObject)Instantiate(whiteChessPrefab, new Vector3(maxPoint[0], 0, maxPoint[1]), Quaternion.identity);
     ChessAI.board[maxPoint[0], maxPoint[1]] = 2;
     end = ChessAI.CheckWinner(maxPoint[0], maxPoint[1], 2);
     Debug.Log(end);
     role = 1;
 }
 private void DrawPrefab()
 {
     first = false;
     if (clone != null && selectionX == lastSelectionX && selectionY == lastSelectionY && Input.GetMouseButtonDown(0) && boardData[selectionX, selectionY] == null)
     {
         Debug.Log(String.Format("Black Chess Down:{0},{1}", selectionX, selectionY));
         boardData[selectionX, selectionY]     = (GameObject)Instantiate(blackChessPrefab, new Vector3(selectionX, 0, selectionY), Quaternion.identity);
         ChessAI.board[selectionX, selectionY] = 1;
         end = ChessAI.CheckWinner(selectionX, selectionY, 1);
         Debug.Log(end);
         role = 2;
     }
     if (clone != null && (selectionX != lastSelectionX || selectionY != lastSelectionY))
     {
         Destroy(clone);
     }
     if (clone == null && selectionX >= 0 && selectionX < 15 && selectionY >= 0 && selectionY < 15 && boardData[selectionX, selectionY] == null)
     {
         clone          = (GameObject)Instantiate(blackChessPrefab, new Vector3(selectionX, 0, selectionY), Quaternion.identity);
         lastSelectionX = selectionX;
         lastSelectionY = selectionY;
     }
 }