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我是一个菜鸟编码员，我正在尝试制作一个小型 2D 太空射击游戏，但遇到了一个问题。

我无法在对角线移动时拍摄。这个问题也与我遇到的一些问题有关，例如：我开始按住，然后开始按住，然后松开，但是向上键的按键监听器不再工作，所以我不再移动。

这是我的一些代码：

    // This method is called by the KeyInput instance created up above when a key is pressed
public void keyPressed(KeyEvent e)
{
    // Grabbing the key code that was pressed
    int keyCode = e.getKeyCode();

    // Accelerating the player based on key pushed
    if (keyCode == KeyEvent.VK_RIGHT) {
        player.setAccX(player.getAccTick());

    } else if (keyCode == KeyEvent.VK_LEFT) {
        player.setAccX(-player.getAccTick());

    } else if (keyCode == KeyEvent.VK_DOWN) {
        player.setAccY(player.getAccTick());

    } else if (keyCode == KeyEvent.VK_UP) {
        player.setAccY(-player.getAccTick());

    } else if (keyCode == KeyEvent.VK_SPACE) {
        bm.addBullet(new PlayerBullet(player.getX(), player.getY(), this));
    }
}

// This method is called by the KeyInput instance created up above when a key is released
public void keyReleased(KeyEvent e)
{
    // Grabs the key code of the key released
    int keyCode = e.getKeyCode();

    // Sets the accelerationg to 0 based on the key released
    if (keyCode == KeyEvent.VK_RIGHT) {
        player.setAccX(0);

    } else if (keyCode == KeyEvent.VK_LEFT) {
        player.setAccX(0);

    } else if (keyCode == KeyEvent.VK_DOWN) {
        player.setAccY(0);

    } else if (keyCode == KeyEvent.VK_UP) {
        player.setAccY(0);
    }
}

我希望能够同时保持多个方向以及同时发射子弹。我知道这不是我的键盘，因为我玩过其他类似的游戏，我可以按住几个键仍然射击。谢谢你们的帮助！

:D

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