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java - 键绑定(bind) - 信息。释放按键时

转载 作者:行者123 更新时间:2023-12-01 13:46:46 25 4
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我正在制作一个游戏,当我按下右键时,我的船开始向右旋转,这很好。但我不知道如何获取释放 key 时的信息。

board.java

public Board()
{
setFocusable(true);
setBackground(Color.BLACK);
setDoubleBuffered(true);

helper = new Helper();

player = new Ship();

this.getInputMap().put(KeyStroke.getKeyStroke(KeyEvent.VK_RIGHT, 0),
"PlayerRight");
this.getActionMap().put("PlayerRight",
new KeyBoardControl(player,"ArrowRight"));

isRunning = true;
gameLoop();

}

keyBoardControl.java

public class KeyBoardControl extends AbstractAction
{
public String key;
public Ship player;

public KeyBoardControl(Ship player ,String key)
{
this.player = player;
this.key = key;
}

@Override
public void actionPerformed(ActionEvent ae)
{
player.keyPressed(key);
}

}

Ship.java

public void keyPressed(String key)
{
//int key = e.getKeyCode();
// double angle = helper.getAngle(rotation - 90);

if (key.contentEquals("ArrowRight"))
{
dRotation = 7;
}

}
public boolean keyReleased(String key)
{
if (key.contentEquals("ArrowRight"))
{
dRotation = 0;
}
return true;
}

VK_Right 发布有关键事件吗?或者除了 Key Strike 对象之外还有其他东西可以使用吗?我使用的是按键监听器,但遇到了一个问题,它无法正确检测超过 2 个按键,因此我进行了按键绑定(bind)。

抱歉,如果这是重复的,我已经看过了。任何帮助将非常感激。干杯

最佳答案

我在另一个堆栈溢出问题上找到了答案。 Java KeyBindings: How does it work?

我将代码更改为

        this.getInputMap().put(KeyStroke.getKeyStroke(KeyEvent.VK_RIGHT, 0,false),
"PlayerRight");
this.getActionMap().put("PlayerRight",
new KeyBoardControl(player,"ArrowRight"));

this.getInputMap().put(KeyStroke.getKeyStroke(KeyEvent.VK_RIGHT, 0,true),
"PlayerRightRelease");
this.getActionMap().put("PlayerRightRelease",
new KeyBoardControl(player,"ArrowRightRelease"));

感谢您的帮助。

关于java - 键绑定(bind) - 信息。释放按键时,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/20311636/

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