关键监听器关注Java游戏

Question

public final void initScreen(DisplayMode dm, boolean fs, boolean vs)
{
    screen = new EScreen (dm, fs, vs); 
    canvas = new EGameCanvas (screen);
    canvas.setFocusable (false);
    screen.add(canvas);

    keyMapManager = KeyMapManager.getInstance (this);

    if (fs) {
        screen.setFullScreen ();
    }
    else {
        screen.setWindowed ();
    }
}

public boolean setActiveKeyMap(String newKeyMap)
{
    if (keyMaps.containsKey(newKeyMap)) {
        screen.removeKeyListener (activeKeyMap);
        activeKeyMap = keyMaps.get (newKeyMap);
        screen.addKeyListener (keyMaps.get (newKeyMap));

        return true;
    }
    return false;
}

public void keyPressed(KeyEvent ev) {
    if (ev.getKeyCode() == KeyEvent.VK_ESCAPE)
        game.setIsRunning (false);
}

screen.setFocusTraversalKeysEnabled (false);

最后，正如你所看到的，我的游戏同时处理全屏模式和窗口模式。这两个问题都发生。

Answer 1

我对我的一个游戏有相同的配置：将keyListener添加到画布中，而不是JFrame

如果您仍然希望JFrame发送事件，也可以将它添加到JFrame和画布（同一个keyListener）中

canvas.addKeyListener(this);

*this：假设您所处的对象实现了KeyListener接口