鼠标单击坐标始终为0

正如您所看到的，我在游戏中添加了一个鼠标监听器。

import java.awt.Graphics; import java.awt.image.BufferStrategy; public class Game implements Runnable { private Display display; public int width, height; public String title; private boolean running = false; private Thread thread; private BufferStrategy bs; private Graphics g; // States public static State gameState; // Input private InputManager inputManager; private MouseHandler mouseHandler; public Game(String title, int width, int height) { this.width = width; this.height = height; this.title = title; inputManager = new InputManager(); mouseHandler = new MouseHandler(); } /** * Initializes all of the graphics */ private void initialize() { display = new Display(title, width, height); display.getFrame().addKeyListener(inputManager); display.getFrame().addMouseListener(mouseHandler); Assets.loadAssets(); gameState = new GameState(this, 1); State.setState(gameState); } /** * Updates everything in the game loop */ private void update() { if (State.getState() != null) State.getState().update(); } private void render() { bs = display.getCanvas().getBufferStrategy(); // If this is the first time running initialize the buffer strategy if (bs == null) { display.getCanvas().createBufferStrategy(3); return; } g = bs.getDrawGraphics(); // Clear the screen g.clearRect(0, 0, width, height); // Drawing if (State.getState() != null) State.getState().render(g); // End drawing bs.show(); g.dispose(); } public void run() { initialize(); // Updates the game loop 60 times every 1 second = 1,000,000,000 // nanoseconds int fps = 60; double timePerUpdate = 1000000000 / fps; double timeElapsed = 0; long now; // Current time of computer in nanoseconds long lastTime = System.nanoTime(); // Game loop while (running) { now = System.nanoTime(); timeElapsed += (now - lastTime) / timePerUpdate; lastTime = now; if (timeElapsed >= 1) { update(); render(); timeElapsed--; } } stop(); } public synchronized void start() { // Do not make a new thread if it is already running if (running) return; // Starts the game running = true; thread = new Thread(this); // this = Game class thread.start(); // Goes to run } public synchronized void stop() { // In case stop gets called and it is already not running if (!running) return; // Stops the game running = false; try { thread.join(); } catch (InterruptedException e) { e.printStackTrace(); } } public InputManager getInputManager() { return inputManager; } public MouseHandler getMouseHandler() { return mouseHandler; } public static void main(String[] args) { Game game = new Game("Game", 1024, 768); game.start(); } } 

这是我的鼠标适配器类，基本上我想要的是鼠标按下位置的x，y坐标

 import java.awt.event.MouseAdapter; import java.awt.event.MouseEvent; public class MouseHandler extends MouseAdapter { public int x, y; public MouseHandler() { } public void MousePressed(MouseEvent e) { x = e.getX(); y = e.getY(); } } 

当我尝试获取X和Y坐标时，它们总是为0而不是鼠标实际点击的位置。 我不知道为什么。

Answer 1

 public int x, y; 

int变量始终初始化为0。

 public void MousePressed(MouseEvent e) 

方法名称区分大小写。

您的代码永远不会被执行，因为要覆盖的方法应该是mousePressed(...) 。 修复代码中的拼写错误。

始终使用如下代码：

 @Override public void mousePressed(MouseEvent e) 

然后，如果您输入错误，编译器会告诉您。

当我尝试获取X和Y坐标时，它们始终为0

由于您的代码永远不会被执行，因此返回默认值。