tankclient.java

一个基于JAVA的小游戏

package com.bjsxt.tank.core;

import java.awt.Color;
import java.awt.Frame;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;



public class TankClient  extends Frame{
	public static final int GAME_WIDTH = 800;
	public static final int GAME_HEIGHT = 600;
	Image offI;
	GameMediator gm = GameMediator.getInstance(); 
	private static final long serialVersionUID = 1L;
	@Override
	public void update(Graphics g) {
		// 得到缓冲图象this.offScreenImage = this.createImage(800,600);
		if (this.offI == null) {
			this.offI = this.createImage(GAME_WIDTH, GAME_HEIGHT);
		}
		// 得到缓冲图象的画笔
		Graphics _g = this.offI.getGraphics();
		// 绘制缓冲图象
		_g.setColor(Color.GREEN);
		_g.fillRect(0, 0, GAME_WIDTH, GAME_HEIGHT);
		// 调用paint(),将缓冲图象的画笔传入
		paint(_g);
		// 再将此缓冲图像一次性绘到代表屏幕的Graphics对象，即该方法传入的“g”上.
		g.drawImage(this.offI, 0, 0, null);
	}
	@Override
	public void paint(Graphics g) {
		Color c = g.getColor();
		gm.drawGameObjects(g);
		gm.checkCollide();
		gm.drawString(g);
		g.setColor(c);
	}
	public static void main(String[] args) {
		TankClient tc = new TankClient();
		tc.launchFrame();
	}
	private void launchFrame() {
		this.setLocation(100, 100);
		this.setSize(GAME_WIDTH, GAME_HEIGHT);
		this.addWindowListener(new WindowAdapter() {
			@Override
			public void windowClosing(WindowEvent e) {
				// TankClient.this.setVisible(false);
				setVisible(false);
				System.exit(0);
			}
		});
		this.setTitle("TankWar");
		this.setResizable(false);
		this.addKeyListener(new KeyMonitor());

		gm.initTanks();
		gm.initWalls();
		this.setVisible(true);

		new Thread(new PaintTrhead()).start();
	}
	class PaintTrhead implements Runnable {

		public void run() {
			while (true) {
				TankClient.this.repaint();
				try {
					Thread.sleep(50);
				} catch (InterruptedException e) {
					e.printStackTrace();
				}
			}

		}
	}

	class KeyMonitor extends KeyAdapter {

		@Override
		public void keyReleased(KeyEvent e) {
			int key = e.getKeyCode();
			gm.myTank.keyReleased(key);
		}

		@Override
		public void keyPressed(KeyEvent e) {
			int key = e.getKeyCode();

			gm.myTank.keyPressed(key);
		}
	}

}