public void EndTurn()
 {
     moveCount++;
     if (CheckStute())
     {
         return;
     }
     ChangeSide();
     if (!isPlayerTurn)
     {
         Vector2 tmpPos = ai.FindBestMove(textButton);
         int     pos    = ConvertToOneD(tmpPos);
         textButton[pos].text = playerSide;
         textButton[pos].GetComponentInParent <Button>().interactable = false;
         EndTurn();
     }
 }