java小实例下载-像素鸟游戏.zip

【实例截图】

【核心代码】

package cn.ucai.game;

import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.image.BufferedImage;
import java.io.IOException;

import javax.imageio.ImageIO;
import javax.swing.JPanel;
/**
 * 本类继承jpanel 实现画板类
 *
 */
public class BirdGame extends JPanel {
	public int state;//声明游戏状态的变量
	public int score;//声明分数变量
	
	/*游戏状态有三种，开始状态，运行状态，游戏结束*/
	public static final int START =0;//游戏开始状态常量值的声明
	public static final int RUNNING = 1;//游戏运行时状态的常量值声明
	public static final int GAMEOVER = 2;//游戏结束状态常量值声明
	
	/*声明图片变量
	 * BufferedImage
	 * */
	
	public BufferedImage backgroundImage = null;
	public BufferedImage startImage = null;
	public BufferedImage overImage = null;
	/*
	 * 声明对象
	 * */
	Bird bird;//小鸟
	Column column1;//管道1
	Column column2;//管道2
	Ground ground;//地面
	public BirdGame() throws IOException{
		state = START;//游戏开始状态
		score = 0;// 游戏分数为0
		//ImageIO.read方法 的意思就是找到本类的同级目录下的图片资源
		backgroundImage = ImageIO.read(getClass().getResource("bg.png"));
		startImage = ImageIO.read(getClass().getResource("start.png"));
		overImage = ImageIO.read(getClass().getResource("gameover.png"));
		
		bird = new Bird();
		column1 = new Column(1);
		column2 = new Column(2);
		ground = new Ground();
	}
	//重写画图方法 
	@Override
	public void paint(Graphics g) {
		// TODO Auto-generated method stub
		super.paint(g);
		/*绘制游戏的背景图片
		 * 参数一： 图片 参数二三：图片放置的位置  参数三：背景颜色 不需要就设置为null
		 * */
		g.drawImage(backgroundImage, 0, 0, null);
		//创建字体对象
		Font font = new Font(Font.SANS_SERIF,Font.BOLD,40);
		//给笔修改字体
		g.setFont(font);
		//设置分数显示成白色
		g.setColor(Color.white);
		//在画布上画分数
		g.drawString(score "", 40, 60);
		//创建画布旋转的对象 Graphics2D
		Graphics2D g2D = (Graphics2D) g;
		//利用Graphics2D对象进行画布的旋转
		//第一个参数旋转的角度，第二第三个参数：定义旋转的中心点
		g2D.rotate(-bird.rad, bird.x, bird.y);
		//绘制小鸟
		g.drawImage(bird.image, bird.x-bird.width/2, bird.y-bird.height/2, null);
		//将画布转正
		g2D.rotate(bird.rad, bird.x,bird.y);
		//绘制管道
		g.drawImage(column1.image, column1.x-column1.width/2, column1.y-column1.height/2, null);
		g.drawImage(column2.image, column2.x-column2.width/2, column2.y-column2.height/2, null);
		//绘制地面
		g.drawImage(ground.image, ground.x, ground.y, null);
		//绘制游戏状态，不同的游戏状态显示不同的图片!
		if(state==START){
			g.drawImage(startImage, 0, 0, null);//绘制游戏开始的状态
		}else if(state == GAMEOVER){
			g.drawImage(overImage, 0, 0, null);//绘制游戏结束的图片
		}
	}
	//创建动作方法，使游戏动起来
	public void action(){
		//声明鼠标监听对象
		MouseListener mouseListenser = new MouseAdapter() {
			//重写鼠标点击事件
			@Override
			public void mousePressed(MouseEvent e) {
				// TODO Auto-generated method stub
				super.mousePressed(e);
				switch(state){
				case START:
					state=RUNNING;//鼠标点击之后，状态改成运行时状态
					break;
				case RUNNING:
					bird.flyUp();//运行时，让小鸟飞起来
					break;
				case GAMEOVER:
					state = START;
					score = 0;
					try {
						bird = new Bird();
						column1=new Column(1);
						column2 = new Column(2);
						ground = new Ground();
					} catch (IOException e1) {
						e1.printStackTrace();
					}
					break;
				}
			}
			
		};
		this.addMouseListener(mouseListenser);
		//为了连续的点击，创建死循环
		while(true){
			switch(state){
			case START:
				bird.fly();
				break;
			case RUNNING:
				ground.step();
				bird.fly();	
				column1.step();
				column2.step();
				bird.step();
				
				//判断得分
				if(bird.x==column1.x||bird.x==column2.x){
					score  ;
				}
				//碰撞处理
				if(bird.hit(column1)||bird.hit(column2)||bird.hit(ground)){
					state = GAMEOVER;
				}
				break;
			}
			repaint();//重新画图，实现动画的效果！
			try {
				Thread.sleep(1000/60);
			} catch (InterruptedException e1) {
				// TODO Auto-generated catch block
				e1.printStackTrace();
			}
		}
		
	}
	
	
}