LWJGL 3 GLFW键盘和鼠标输入速度慢，并且在GLFW_PRESS和GLFW_REPEAT之间有延迟

Question

if (glfwGetKey(window, key) == GLFW_PRESS)

if (glfwGetKey(windowm key) == GLFW_RELEASE)

谢谢：）

Answer 1

因此，我解决了这个问题，这要归功于Brett Hale的建议，即假设键处于关闭状态，直到glfw_release事件被激发。这是我的工作实现：

public final class InputHandler
{
    private static long window;
    private static final int KEYBOARD_SIZE = 512;
    private static final int MOUSE_SIZE = 16;

    private static int[] keyStates = new int[KEYBOARD_SIZE];
    private static boolean[] activeKeys = new boolean[KEYBOARD_SIZE];

    private static int[] mouseButtonStates = new int[MOUSE_SIZE];
    private static boolean[] activeMouseButtons = new boolean[MOUSE_SIZE];
    private static long lastMouseNS = 0;
    private static long mouseDoubleClickPeriodNS = 1000000000 / 5; //5th of a second for double click.

    private static int NO_STATE = -1;


    protected static GLFWKeyCallback keyboard = new GLFWKeyCallback()
    {
        @Override
        public void invoke(long window, int key, int scancode, int action, int mods)
        {
            activeKeys[key] = action != GLFW_RELEASE;
            keyStates[key] = action;
        }
    };

    protected static GLFWMouseButtonCallback mouse = new GLFWMouseButtonCallback()
    {
        @Override
        public void invoke(long window, int button, int action, int mods)
        {
            activeMouseButtons[button] = action != GLFW_RELEASE;
            mouseButtonStates[button] = action;
        }
    };

    protected static void init(long window)
    {
        InputHandler.window = window;

        resetKeyboard();
        resetMouse();
    }

    protected static void update()
    {
        resetKeyboard();
        resetMouse();

        glfwPollEvents();
        Engine.getInput();
    }

    private static void resetKeyboard()
    {
        for (int i = 0; i < keyStates.length; i++)
        {
            keyStates[i] = NO_STATE;
        }
    }

    private static void resetMouse()
    {
        for (int i = 0; i < mouseButtonStates.length; i++)
        {
            mouseButtonStates[i] = NO_STATE;
        }

        long now = System.nanoTime();

        if (now - lastMouseNS > mouseDoubleClickPeriodNS)
            lastMouseNS = 0;
    }

    public static boolean keyDown(int key)
    {
        return activeKeys[key];
    }

    public static boolean keyPressed(int key)
    {
        return keyStates[key] == GLFW_PRESS;
    }

    public static boolean keyReleased(int key)
    {
        return keyStates[key] == GLFW_RELEASE;
    }

    public static boolean mouseButtonDown(int button)
    {
        return activeMouseButtons[button];
    }

    public static boolean mouseButtonPressed(int button)
    {
        return mouseButtonStates[button] == GLFW_RELEASE;
    }

    public static boolean mouseButtonReleased(int button)
    {
        boolean flag = mouseButtonStates[button] == GLFW_RELEASE;

        if (flag)
            lastMouseNS = System.nanoTime();

        return flag;
    }

    public static boolean mouseButtonDoubleClicked(int button)
    {
        long last = lastMouseNS;
        boolean flag = mouseButtonReleased(button);

        long now = System.nanoTime();

        if (flag && now - last < mouseDoubleClickPeriodNS)
        {
            lastMouseNS = 0;
            return true;
        }

        return false;
    }
}

如果您愿意，请随意使用此代码。不过需要注意的是：更新方法应该在每一个帧中调用。另外，如果在其他地方有glfwpollevents()，我认为这是可能的，那么需要保持以下顺序：重置键盘/鼠标，然后轮询，然后getinput（）。

编辑：我的engine.getinput()方法只是告诉场景图中需要输入的节点（即播放器）查询该输入。