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我正在關注YouTube上的Java遊戲編程系列,並且在我們向該程序添加一些代碼之前,所有這些都一直進展順利。爲程序的代碼是:運行此代碼時系統凍結
package com.fagyapong.rain;
import javax.swing.*;
import java.awt.*;
import java.awt.image.*;
public class Game extends Canvas implements Runnable{
private static final long serialVersionUID = -247215114548172830L;
public static int width = 300;
public static int height = width/16 * 9;
public static int scale = 3;
private JFrame frame;
public Thread thread;
private boolean running = false;
public Game() {
// Setup Game window
Dimension size = new Dimension(width * scale, height * scale);
setPreferredSize(size);
frame = new JFrame();
}
public synchronized void start() {
running = true;
thread = new Thread(this, "Display");
thread.start();
}
public synchronized void stop() {
running = false;
try {
thread.join();
}
catch (InterruptedException e) {
e.printStackTrace();
}
}
public void run() {
while (running) {
update();
render();
}
}
public void update() {
}
public void render() {
// Get the canvas' BufferStragy object
BufferStrategy bs = getBufferStrategy();
if (bs == null) {
createBufferStrategy(3);
return;
}
Graphics g = bs.getDrawGraphics();
g.setColor(Color.GRAY);
g.fillRect(0, 0, getWidth(), getHeight());
g.dispose();
bs.show();
}
public static void main(String[] args) {
Game game = new Game();
game.frame.setResizable(false);
game.frame.setTitle("Rain");
game.frame.add(game);
game.frame.pack();
game.frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
game.frame.setLocationRelativeTo(null);
game.frame.setVisible(true);
game.start();
}
}
下面是使所述系統凍結碼(已經在上面的代碼註釋)
Graphics g = bs.getDrawGraphics();
g.setColor(Color.GRAY);
g.fillRect(0, 0, getWidth(), getHeight());
g.dispose();
bs.show();
它不凍結我的系統。你究竟發生了什麼? –
該程序運行並顯示一個窗口,但系統後來變得沒有響應 – Francis
它是否達到峯值內存使用率? – jpaugh