snake.java~2~

大家都很熟悉的一个小游戏

package snake;

import java.awt.*;
import java.applet.*;

public class Snake extends Applet implements Runnable
{
    Image dot[]=new  Image[400];
    Image back;
    Image offI;
    Graphics offG;
    int x[]=new int[ 400];
    int y[]=new int[400];
    int rtemp=1;
    int game=1;
    int coutn=0;
    int score=0;
    int add=1;
    int level,z,n;
    Button level1=new Button("初级");
    Button level2=new Button("中级");
    Button level3=new Button("高级");
    Button level4=new Button("专家级");
    String stemp;
    String s,t;
    boolean go[]=new boolean[400];
    boolean left=false;
    boolean right=false ;
    boolean up=false;
    boolean down=false ;
    boolean started=false;
    Thread setTime;
    public void init()
    {
        //添加按钮组件
        add(level1);
        add(level2);
        add(level3);
        add(level4);
        //设置背景颜色
        setBackground(Color.black);
        back=getImage(getCodeBase(),"screan.gif");
        for(z=0;z<400;z++)
        {
            dot[z]=getImage(getCodeBase(),"screan.gif");
        }

    }

    public void update(Graphics g)
    {
        Dimension d=this.size();
        if(offI==null)
        {
            offI=createImage(d.width,d.height);
            offG=offI.getGraphics();
        }
        offG.clearRect(0,0,d.width,d.height);
        paint(offG);
        g.drawImage(offI,0,0,null);

    }

    public void paint(Graphics g)
    {
        g.drawImage(back,0,0,this);
        g.setColor(Color.white);
        if(started)
        {
            g.setFont(new Font("TimesRoman",1,12));
            t="分数"+score+"";
            g.drawString(t,75,220);
        }

        if(game==1)
        {
            g.setFont(new Font("TimesRoman",1,13));
            s="游戏模式选择";
            g.drawString(s,65,30);
            //移动按钮的位置
            level1.move(75,50);
            level2.move(75,90);
            level3.move(75,130);
            level4.move(75,170);

        }
        if((game==2)||(game==3))
        {
            if(!started)
            {
                g.setFont(new Font ("TimeRoman",1,13));
                t="用方向键移动!";
                g.drawString(t,5,215);
            }
            for(z=0;z<=n;z++)
            {
                g.drawImage(dot[z],x[z],y[z],this);

            }
        }
        if(game==3)
        {
            g.setFont(new Font("TimesRoman",1,13));
            s="游戏结束！";
            g.drawString(s,65,60);

        }
    }
    public void run()
    {
        for(z=4;z<400;z++)
        {
            go[z]=false;

        }
        for(z=0;z<4;z++)
        {
            go[z]=true;
            x[z]=91;
            y[z]=91;

        }
        n=3;
        game=2;
        score=0;
        level1.move(70,-100);
        level2.move(70,-100);
        level3.move(70,-100);
        level4.move(70,-100);
        left=false;
        right=false;
        up=false;
        down=false;
        locateRandom(4);
        while(true)
        {
            if(game==2)
            {
                if((x[0]==x[n])&&(y[0]==y[n]))
                {
                    go[n]=true;
                    locateRandom((n+1));
                    score+=add;

                }
                for(z=399;z>0;z--)
                {
                    if(go[z])
                    {
                        x[z]=x[(z-1)];
                        y[z]=y[(z-1)];
                        if((z>4)&&(x[0]==x[z])&&(y[0]==y[z]))
                        {
                            game=3;
                        }
                    }
                }
                if(left)  x[0]-=10;
                if(right) x[0]+=10;
                if(up)  y[0]-=10;
                if(down) y[0]+=10;
            }
        }

        if(y[0]>191) { y[0]=191; game=3;}
        if(y[0]<1) { y[0]=1; game=3;}
        if(x[0]>191){ x[0]=191; game=3;}
        if(x[0]<1){ x[0]=1;game=3;}
        if(game==3)
        {
            if(count<(1500/level))
            {
                count++;
            }
            else
            {
                count=0;
                game=1;
                repaint();
                setTime.stop();
            }
        }
        repaint();
        try {
            setTime.sleep(level);
        } catch (InterruptedException ex) {

        }

    }


}