Question

我正在尝试使用LWJGL来获取是否按下某个键。如果按下退出键，则应用程序退出。但是，我无法读取任何键盘输入，尽管Display.isCloseRequested()工作正常。

我在RHEL上使用LWJGL 2.6和Java 1.6。

for(;;) {
    // check if we want to quit

    if(Keyboard.isKeyDown(Keyboard.KEY_ESCAPE)) {
        System.exit(0);  // can't get this to happen!
    }
    if(Display.isCloseRequested()) {
        System.exit(0);
    }

/* timer code omitted */

    render();
    Display.update();
}

编辑：完全相同的代码在我的Windows机器上完全正常，使用相同版本的lwjgl和JRE。

Answer 1

也许您可以使用isCreated功能检查键盘是否已创建？

除此之外，我在编程方面并不是那么好，所以我无法为你提供任何其他输入。

试试这个

Keyboard.isCreated()

Answer 2

我可能会或可能没有帮助/恢复这里的死主题，但对于任何流氓Google员工，我都会给你：

It's my Input class from my Zdeva Engine

在这里，您无需下载整个'引擎'..

package LWJGL;

import org.lwjgl.input.Keyboard;
import org.lwjgl.input.Mouse;

public class Input 
{
    public static boolean[] mouseButtons = {false, false, false};
    public static int[] mousePos = new int[Mouse.getButtonCount()];
    public static int[] keysBound = {Keyboard.KEY_A, Keyboard.KEY_B};

    /**
     * Initializes the input system. Loads keyconfig.
     * 
     */
    public static void init()
    {
        System.out.println("Initializing input system...");
        //Eventually will check for OS, and adjust keys accordingly.
        System.out.println("Input system initialized!");
    }

    /**
     * Updates all mouse info, keys bound, and performs actions.
     */
    public static void tick()
    {
        mouseButtons[0] = Mouse.isButtonDown(0);
        mouseButtons[1] = Mouse.isButtonDown(1);

        mousePos[0] = Mouse.getX();
        mousePos[1] = Mouse.getY();

        while(Keyboard.next())
        {
            if(Keyboard.getEventKeyState())
            {
                doAction(Keyboard.getEventKey(), false);
            }
        }

        for(int key : keysBound)
        {
            if(Keyboard.isKeyDown(key))
            {
                doAction(key, true);
            }
        }

        while(Mouse.next())
        {
            doAction(-1, false);
        }
        doAction(0, true);  
    }

    /**
     * Does the associated action for each key. Called automatically from tick.
     * @param key The key to check & perform associated action
     */
    public static void doAction(int key, boolean ifRepeat)
    {
        if(mouseButtons[0])
        {

        }
        if(mouseButtons[1])
        {

        }
        if(key == keysBound[0] & ifRepeat)
        {
            System.out.println("a");
        }
        if(key == keysBound[1] & !ifRepeat)
        {
            System.out.println("b");            
        }
    }
}

LWJGL不会读取键盘输入

2 个答案: