跳棋2D阵列 - 跳棋不移动

Question

我正在编程Checkers并遇到一个问题，我的跳棋不会移动。我正在使用Java Applet。它记录了我点击的事实，但它没有移动检查器本身。

这是我的MouseClicked，我认为这就是我遇到问题的地方：

public void mouseClicked(MouseEvent e) {
    mouseX=e.getX();
    mouseY=e.getY();
    col = (mouseX-115)/100;
    row = (mouseY-115)/100;

    if(board[row][col].getPlayer()==player)
    {   oldCol = col;
        oldRow = row;
        if(board[row][col].getPlayer()==0)
        {
            if(board[oldRow][oldCol].getPlayer()==1 && board[oldRow][oldCol].getKing()==false)
            {
                if(row==oldRow-1)
                {
                    if(col==oldCol-1 || col==oldCol+1)
                    {
                        board[oldRow][oldCol].setPlayer(0);
                        board[row][col].setPlayer(1);
                        board[row][col].setKing(false);
                    }
                }
            }    
            else if(board[oldRow][oldCol].getPlayer()==1 && board[oldRow][oldCol].getKing()==true)
            {
                if(row==oldRow-1 || row==oldRow+1)
                {
                    if(col==oldCol-1 || col==oldCol+1)
                    {
                        board[oldRow][oldCol].setPlayer(0);
                        board[row][col].setPlayer(1);
                        board[row][col].setKing(true);
                    }
                }
            }  
            else if(board[oldRow][oldCol].getPlayer()==2 && board[oldRow][oldCol].getKing()==true)
            {
                if(row==oldRow-1 || row==oldRow+1)
                {
                    if(col==oldCol-1 || col==oldCol+1)
                    {
                        board[oldRow][oldCol].setPlayer(0);
                        board[row][col].setPlayer(2);
                        board[row][col].setKing(true);
                    }
                }
            }  
            else if(board[oldRow][oldCol].getPlayer()==2 && board[oldRow][oldCol].getKing()==false)
            {
                if(row==oldRow+1)
                {
                    if(col==oldCol-1 || col==oldCol+1)
                    {
                        board[oldRow][oldCol].setPlayer(0);
                        board[row][col].setPlayer(2);
                        board[row][col].setKing(false);
                    }
                }
            }  
        }
    }
    repaint();
}