Libgdx - 检查按键是否被按下？ [英] Libgdx - Check if a key is being held down?

问题描述

我正在使用java libgdx游戏库，我很好奇，如果我能判断一个键是否正在被HELD，而不是按下并放开。

I'm using the java libgdx game library and im curious if I can tell if a key is being HELD, not pressed and let go.

我需要知道这个，因为如果只是按下它我会播放一个较短的mp3文件，如果它被保持则会播放一个较长的mp3文件。

I need to know this because I'm going to play a shorter mp3 file if it is just pressed and a longer one if it is held.

推荐答案

是的，您可以通过 Gdx.input.isKeyPressed（Input.Keys.XXX）或实施 InputProcessor 。

Yes, you can easily check they either via Gdx.input.isKeyPressed(Input.Keys.XXX) or by implementing an InputProcessor.

public class MyInputProcessor implements InputProcessor {

    public boolean keyPressed;

    @Override
    public boolean keyDown(int keycode) {
        if (keycode == Input.Keys.XXX) {
            keyPressed = true;
        }

        return false;
    }

    @Override
    public boolean keyUp(int keycode) {
        if (keycode == Input.Keys.XXX) {
            keyPressed = false;
        }

        return false;
    }
}

使用它是这样的：

MyInputProcessor processor = new MyInputProcessor();
Gdx.input.setInputProcessor(processor);

...

if (processor.keyPressed) {
    // do some stuff
}

您可以在此处详细了解 。

You can read more about that here.

这篇关于Libgdx - 检查按键是否被按下？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！