java - LWJGL 键盘输入不起作用

Question

我正在编写 LWJGL 应用程序，但在使键盘和鼠标类正常工作时遇到一些问题。 mouseWheelMoved、keyPressed 和 keyReleased 方法永远不会被调用。我可以确认调用了listener.update方法。

在此应用程序中，我将 Display 嵌入到 JFrame 中，但即使我不这样做，它仍然无法工作，因此这似乎不是问题。

控制台输出:

Drew Map
Keyboard & Mouse listener initialized
(Few minutes of key pressing here)
Application Close Requested
Application Closing
Renderer Stopping
Renderer End

渲染器初始化:

@Override
public void run() {
    try {
        Display.setParent(canvas);
        Display.create();
        Display.setResizable(false);
        Display.setTitle("Display");
        GL11.glDisable(GL11.GL_DEPTH_TEST);
        GL11.glOrtho(0, 1, 0, 1, 0, 1);
        draw();
        listener.initialize();
    } catch (LWJGLException ex) {
        System.out.println("Could not initialize renderer: " + ex.getMessage());
        Thread.currentThread().interrupt();
    }
    do {
        listener.update();
        if(shouldUpdate)
            draw();
        Thread.yield();
    } while(!closing);
    System.out.println("Renderer Stopping");
    try {
        Display.destroy();
    } catch(Exception ex) {
        System.out.println("Error while stopping renderer: " + ex.getMessage());
    }
    listener.destroy();
    System.out.println("Renderer End");
}

监听器类:

public void initialize() {
    try {
        Mouse.create();
        Keyboard.create();
        Keyboard.enableRepeatEvents(true);
        System.out.println("Keyboard & Mouse listener initialized");
    } catch (LWJGLException ex) {
        System.out.println("Could not initialize listener");
        Thread.currentThread().interrupt();
    }
}
public void update() {
    while(Keyboard.next()) { // Never True
        int key = Keyboard.getEventKey();
        if(Keyboard.getEventKeyState())
            keyPressed(key); // Never Called
        else
            keyReleased(key); // Never Called
        System.out.println(Keyboard.getKeyName(key)); // Never Printed
    }
    int amount = Mouse.getDWheel(); // Always 0
    if(amount != 0)
        mouseWheelMoved(amount); // Never Called
}

Answer 1

我想我需要调用“Display.update()”来刷新键盘输入。

您可以忽略此行为并通过调用 Display.processMessages()、Mouse.poll() 和 Keyboard.poll() 手动更新输入。