JAVA小游戏“飞翔的小鸟”

第一步是创建项目?项目名自拟

第二步创建个包名?来规范class

再创建一个包? 来存储照片

如下：

代码如下：

1. ?

   package game;
   import java.awt.*;
   import javax.swing.*;
   import javax.imageio.ImageIO;
    
   public class Bird {
    
   	Image image;
   	int x,y;
   	int width,height;
   	int size;
   	
   	double g;
   	
   	double t;
   	
   	double v0;
   	
   	double speed;
   	
   	double s;
   	
   	double alpha;
   	
   	//?
   	Image[] images;
   	
   	int index;
   	
   	public Bird() throws Exception
   	{
   		image=new ImageIcon("source/0.png").getImage();
   		width = image.getWidth(null);
   		height = image.getHeight(null);
   		x=132;
   		y=280;
   		size=40;
   	
   		g=4;
   		v0=20;
   		t=0.25;
   		speed=v0;
   		s=0;
   		
   		alpha=0;
   		
   		
   		images=new Image[8];
   		
   		for(int i=0;i<8;i++)
   		{
   			images[i]=new ImageIcon("source/"+i+".png").getImage();
   		}
   		index=0;
   		
   	}
   	
   	
   	public void fly()
   	{
   		index++;
   		image=images[(index/12)%8];
   	}
   	
   	
   	public void step()
   	{
   		double v0=speed;
   		
   		s=v0*t+g*t*t/2;
   		
   		y=y-(int)s;
   		
   		double v=v0-g*t;
   		speed =v;
   		
   		alpha=Math.atan(s/8);
   		
   	}
   	
   	
   	public void flappy()
   	{
   		
   		speed=v0;
   	}
   	
   	
   	public boolean hit(Ground ground)
   	{
   		boolean hit =y+size/2>ground.y;
   		if(hit)
   		{
   			y=ground.y-size/2;
   			alpha=Math.PI/2;
   		}
   		return hit;
   	}
   	
   	
   	public boolean hit(Column column)
   	{
   		
   		if(x>column.x-column.width/2-size/2&&x<column.x+column.width/2+size/2)
   		{
   			if(y>column.y-column.gap/2+size/2&&y<column.y+column.gap/2-size/2) return false;
   			return true;
   		}
   		return false;
   	}
   }

   package game;
    
   import javax.imageio.ImageIO;
   import java.util.*;
    
   import javax.swing.*;
    
   import java.awt.Graphics;
   import java.awt.event.MouseAdapter;
   import java.awt.event.*;
   import java.awt.image.BufferedImage;
   import javax.imageio.*;
   import java.awt.*;
    
   public class BirdGame extends JPanel {
   	
   	
   	Image background;
   	Image startImage;
   	Image overImage;
   	Ground ground;//����
   	Column column1,column2;
   	Bird bird;
   	int score;
   	int state;//??
   	//??����
   	public static final int START=0;
   	public static final int RUNNING=1;
   	public static final int GAME_OVER=2;
   	
   	public BirdGame() throws Exception
   	{
   		background = new ImageIcon("./source/bg.png").getImage();
   		startImage = new ImageIcon("./source/start.png").getImage();
   		overImage=new ImageIcon("./source/gameover.png").getImage();
   	//??
   		ground=new Ground();
   		column1=new Column(1);
   		column2=new Column(2);
   		bird=new Bird();
   		score=0;
   		state=0;
   	}
   	
   	public void paint(Graphics g)
   	{
    
   		g.drawImage(background, 0, 0,null);
   		
   		g.drawImage(ground.image, ground.x, ground.y, null);
   	
   		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);
   	
   		Graphics2D g2=(Graphics2D) g;
   		g2.rotate(-bird.alpha,bird.x,bird.y);
   		g.drawImage(bird.image,bird.x-bird.width/2,bird.y-bird.height/2,null);
   		g2.rotate(bird.alpha,bird.x,bird.y);
   		
   		Font f=new Font(Font.SANS_SERIF,Font.BOLD,40);
   		g.setFont(f);
   		g.drawString(""+score, 40, 60);
   		g.setColor(Color.WHITE);
   		g.drawString(""+score,40-3, 60-3);
   		
   		switch(state)
   		{
   		case START:
   			g.drawImage(startImage, 0, 0, null);
   			break;
   		case GAME_OVER:
   			g.drawImage(overImage, 0, 0, null);
   			break;
   		}
   	}
   	
   	public void action() throws Exception
   	{
   		
   		MouseListener l=new MouseAdapter()
   		{
   			public void mousePressed(MouseEvent e)
   			{
   				try {
   					switch(state) {
   					case START:
   						//??
   						state=RUNNING;
   						break;
   					case RUNNING:
   						
   						bird.flappy();
   						break;
   					case GAME_OVER:
   						
   						column1=new Column(1);
   						column2=new Column(2);
   						bird=new Bird();
   						score=0;
   						state=START;
   						break;
   					}
   				}
   				catch (Exception ex)
   				{
   					ex.printStackTrace();
   				}
   			}
   			
   		};
   		addMouseListener(l);
   		while(true)
   		{
   			switch(state)
   			{
   			case START:
   				bird.fly();
   				ground.step();
   				break;
   			case RUNNING:
   				ground.step();
   				column1.step();
   				column2.step();
   				bird.fly();
   				bird.step();
    
   				score++;
   				//
   				if(bird.hit(ground)||bird.hit(column1)||bird.hit(column2))
   				{
   					state=GAME_OVER;
   				}
   				break;
   			}	
   			
   			Thread.sleep(1000/60);
   			repaint();
   		}
   	}
   	
   	
   	
   	public static void main(String[] args) throws Exception
   	{
   		
   		JFrame frame=new JFrame();
   		BirdGame game=new BirdGame();
   		frame.add(game);
   		frame.setSize(440,670);
   		frame.setLocationRelativeTo(null);
   		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   		frame.setVisible(true);
   		game.action();
   	}
   	
   }

   package game;
    
   import java.util.*;
   import java.awt.*;
    
   import javax.imageio.ImageIO;
   import javax.swing.*;
    
   public class Column {
    
   	Image image;
   	
   	int x,y;
   	int width,height;
   	
   	int gap;
   	
   	int distance;
   	Random random =new Random();
   	
   	
   	
   	public Column(int n) throws Exception
   	{
   		image=new ImageIcon("source/column.png").getImage();
   		width=image.getWidth(null);
   		height=image.getHeight(null);
   		gap=144;
   		distance=245;
   		x=550+(n-1)*distance;
   		y=random.nextInt(218)+132;
   	}
   	
   	public void step()
   	{
   		x-=4;
   		if(x<= -width/2)
   		{
   			x=distance*2-width/2;
   			y=random.nextInt(218);
   		}
   	}
   }

   package game;
    
   import java.util.*;
   import java.awt.*;
    
   import javax.imageio.ImageIO;
   import javax.swing.*;
    
   public class Column {
    
   	Image image;
   	
   	int x,y;
   	int width,height;
   	
   	int gap;
   	
   	int distance;
   	Random random =new Random();
   	
   	
   	
   	public Column(int n) throws Exception
   	{
   		image=new ImageIcon("source/column.png").getImage();
   		width=image.getWidth(null);
   		height=image.getHeight(null);
   		gap=144;
   		distance=245;
   		x=550+(n-1)*distance;
   		y=random.nextInt(218)+132;
   	}
   	
   	public void step()
   	{
   		x-=4;
   		if(x<= -width/2)
   		{
   			x=distance*2-width/2;
   			y=random.nextInt(218);
   		}
   	}
   }