如何将鼠标监听器添加到使用 graph.drawimage() 插入的图像？

Question

    public class buttonActionStart implements ActionListener {      // overwritten ActionListener

        public void actionPerformed (ActionEvent e){
        JFrame window2 = new JFrame("Main Game"); //create empty frame

        Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
        window2.setSize(screenSize.width,screenSize.height);
        window2.add(new JPanel(){

        public void paintComponent(Graphics graph){
            super.paintComponent(graph);

            Board board = new Board();

            graph.drawString(board.sqaures[1].getName(),440,560);
            graph.drawString(board.sqaures[2].getName(),335,560);
            graph.drawString(board.sqaures[3].getName(),225,560);
            graph.drawString(board.sqaures[4].getName(),145,560);
            graph.drawString(board.sqaures[5].getName(),30,560);
            graph.drawString(board.sqaures[6].getName(),25,460);
            graph.drawString(board.sqaures[7].getName(),25,360);
            graph.drawString(board.sqaures[8].getName(),35,260);
            graph.drawString(board.sqaures[9].getName(),25,160);
            graph.drawString(board.sqaures[10].getName(),25,60);
            graph.drawString(board.sqaures[11].getName(),140,60);
            graph.drawString(board.sqaures[12].getName(),240,60);
            graph.drawString(board.sqaures[13].getName(),340,60);
            graph.drawString(board.sqaures[14].getName(),440,60);
            graph.drawString(board.sqaures[15].getName(),530,60);
            graph.drawString(board.sqaures[16].getName(),550,160);
            graph.drawString(board.sqaures[17].getName(),545,260);
            graph.drawString(board.sqaures[18].getName(),540,360);
            graph.drawString(board.sqaures[19].getName(),550,460);

            for (int i = 0; i < 6; i++)
                graph.drawRect(10 + (i*100),10,100,100);
            for (int j = 0; j < 4; j++)
                graph.drawRect(10,110 + (j*100),100,100);
            for (int k = 0; k < 4; k++)
                graph.drawRect(510,110 + (k*100),100,100);
            for (int l = 0; l < 6; l++)
                graph.drawRect(10 + (l*100),510,100,100);

            InputStream resource = UI.class.getResourceAsStream("player1.png");
            Image player1Image = null;
            try{
                player1Image = ImageIO.read(resource);
            }catch (IOException e){
                e.printStackTrace();
            }

            resource = UI.class.getResourceAsStream("player2.png");
            Image player2Image = null;
            try{
                player2Image = ImageIO.read(resource);
            }catch (IOException e){
                e.printStackTrace();
            }

            resource = UI.class.getResourceAsStream("player3.png");
            Image player3Image = null;
            try{
                player3Image = ImageIO.read(resource);
            }catch (IOException e){
                e.printStackTrace();
            }

            resource = UI.class.getResourceAsStream("player4.png");
            Image player4Image = null;
            try{
                player4Image = ImageIO.read(resource);
            }catch (IOException e){
                e.printStackTrace();
            }

            graph.drawImage(player1Image, 511, 511, null);
            graph.drawImage(player2Image, 585, 510, null);
            graph.drawImage(player3Image, 511, 585, null);
            graph.drawImage(player4Image, 585, 585, null);
            }
        });
        window2.setVisible(true);
    }
}

我正在开发一种棋盘游戏，这四个图像将作为玩家图标。我希望玩家单击手动分配给他们的图像，然后单击屏幕上的其他位置，图像将 "updated" 到该位置。

"square"和board"将是我自定义的class。

我得到了另一个 window，它将有一个 "start" 按钮并触发上面的图形绘制在一个新的 window 上。

我确实发现很多人建议使用 JLabel 添加图像并将 JLabel 添加到 JFrame，但我发现图像会覆盖我的图形。

Answer 1

两个选项：

按照建议操作并使用 JLabel。说 "the image will cover my graphics"，您的意思可能是图像的透明部分不会显示背景。如果是，请调用 JLabel.setOpaque(false).
将 MouseListener 添加到您为其实现 paintComponent() 方法（可能是 JFrame 实现）的组件。每当用户单击组件时，您都会收到鼠标事件。在侦听器实现中，您必须手动检查坐标是否落入其中一张图像的区域。

一般来说，对于游戏我更喜欢选项 2：使用空白 canvas 并将游戏场景绘制到 canvas 中。然后，用户交互由通用游戏逻辑对象管理，该对象根据坐标/按下的键等

委托给 'player'、'NPC' 等游戏对象

如何将鼠标监听器添加到使用 graph.drawimage() 插入的图像？

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graphic