Java swing框架实现的贪吃蛇游戏完整示例

本文实例讲述了java swing框架实现的贪吃蛇游戏。分享给大家供大家参考，具体如下：

java是门高级语言，做游戏时适合做后台，但是用它也可以做游戏。闲来无事做的时候可以用来写点小游戏，练习练习预防早衰哈哈！

闲话不说了

下面是以前练习的作品，不怕大家笑话，那个时候用了一个礼拜才做出来的。

源码如下供大家学习。

使用的是java的 swing  jframe jpanel jbutton   当然你也可以使用awt

先来看看运行效果：

具体代码：

package tcs;
/**
 *
 *
 *
 * @author tx
 */
import java.awt.color;
import java.awt.container;
import java.awt.font;
import java.awt.graphics;
import java.awt.event.keyevent;
import java.awt.event.keylistener;
import java.awt.event.mouseadapter;
import java.awt.event.mouseevent;
import java.awt.event.mouselistener;
import java.util.arraylist;
import java.util.arrays;
import java.util.collection;
import java.util.random;
import java.util.timer;
import java.util.timertask;
import javax.swing.jbutton;
import javax.swing.jframe;
import javax.swing.jpanel;
public class snack extends jpanel implements keylistener {
  public jbutton bt = new jbutton("重新开始");
  public arraylist<treasure> bw = new arraylist<treasure>();
  public body[] b = new body[5];
  public string state = "";
  public arraylist<point> p = new arraylist<point>();
  public static int score;
  public snack() {
    this.addkeylistener(this);
    shengc();
  }
  public void shengc() {
    for (int i = 0; i < b.length; i++) {
      b[i] = new body();
      b[i].x = 10 - i * 10;
      b[i].y = 150;
    }
  }
  public int x = 0, y = 0;
  public void paint(graphics g) {
    super.paint(g);
    g.setcolor(new color(165,41,10));//rgb定义颜色的方法
    g.setfont(new font(font.sans_serif, font.bold, 20));
    for (int i = 0; i < b.length; i++) {
      body z1 = b[i];
      g.drawstring("o", b[i].x, b[i].y);
    }
    g.setcolor(color.blue);
    g.setfont(new font(font.sans_serif, font.bold, 20));
    g.drawstring("score:" + score, 30, 30);
    paintjs(g);
    paintbw(g);
  }
  public void paintjs(graphics g) {
    g.setcolor(color.black);
    if (state.length() > 1) {
      g.drawstring(state, 140, 200);
    }
  }
  public void paintbw(graphics g) {
    g.setfont(new font(font.sans_serif, font.bold, 25));
    g.setcolor(color.red);
    for (int i = 0; i < bw.size(); i++) {
      g.drawstring("o", bw.get(i).x, bw.get(i).y);
    }
  }
  public boolean yj() {
    if ((b[0].x < 400 && b[0].x > 0) && (b[0].y < 400 && b[0].y > 0)) {
      return false;
    } else {
      state = "game over";
      return true;
    }
  }
  public void stmove() {
    if (pzjc() == false && (yj() == false)) {
      b[0].speed = 8;//此处可提升速度增加难度
      b[0].move();
      p.add(new point(b[0].x, b[0].y, b[0].fx));
      if (p.size() > b.length) {
        p.remove(p.get(0));
        // system.out.println(p.size());
      }
    }
  }
  public int jl(body a, treasure b) {
    int jl = 0;
    jl = (int) math.sqrt((a.x - b.x) * (a.x - b.x) + (a.y - b.y)
        * (a.y - b.y));
    return jl;
  }// 暂时无用
  public void ssmove() {
    if (p.size() >= b.length) {
      for (int i = 0; i < b.length - 1; i++) {
        b[i + 1].fx = p.get(i).fx;
        b[i + 1].x = p.get(i).x;
        b[i + 1].y = p.get(i).y;
      }
    }
  }
  random r = new random();
  public void bzbw() {
    if (bw.size() < 1) {
      treasure s = new treasure();
      s.x = r.nextint(300) + 50;
      s.y = r.nextint(300) + 50;
      bw.add(s);
    }
  }
  public void bwxs() {
    timer t = new timer();
    t.schedule(new timertask() {
      public void run() {
      }
    }, 0, 8000);
  }
  public boolean pzjc() {
    for (int i = 1; i < p.size(); i++) {
      if (p.get(0).equals(p.get(i))) {
        state = "game over";
        return true;
      }
    }
    return false;
  }
  public void crush() {
    if (bw.size() > 0) {
      if (jl(b[0], bw.get(0)) < 8) {
        bw.remove(0);
        b = arrays.copyof(b, b.length + 1);
        b[b.length - 1] = new body();
        score += 10;
      }
    }
  }
  public void gameover() {
    mouselistener k = new mouseadapter() {
      public void mouseclicked(mouseevent e) {
        super.mouseclicked(e);
        state = "";
        b = arrays.copyof(b, 5);
        p.clear();
        shengc();
        score = 0;
        bt.setvisible(false);
      }
    };
    if (state.length() > 1) {
      this.add(bt);
      bt.setvisible(true);
      bt.setbounds(150, 150, 100, 30);
      bt.addmouselistener(k);
    }
      if(bt.isvisible()==false){this.remove(bt);}
    this.requestfocus();
  }
  public void zmaction() {
    timer timer = new timer();
    timer.schedule(new timertask() {
      public void run() {
        bzbw();// 生成宝物
        stmove();// 蛇头运动
        ssmove();// 蛇身运动
        crush();// 碰撞检测
        gameover();
        repaint();
      }
    }, 10, 83);
  }
  public static void main(string[] args) {
    jframe jf = new jframe(" - 贪吃蛇游戏测试");
    jf.setbounds(0, 0, 400, 400);
    jf.setvisible(true);
    jf.setlayout(null);
    container c = new container();
    c = jf.getcontentpane();
    c.setbackground(color.white);
    jf.setdefaultcloseoperation(jframe.exit_on_close);
    snack s = new snack();
    s.setvisible(true);
    s.setbounds(0, 0, 600, 600);
    s.setlocation(0, 0);
    s.setbackground(color.orange);
    jf.add(s);
    s.zmaction();
    s.requestfocus();
  }
  public void keytyped(keyevent e) {
  }
  public void keypressed(keyevent e) {
    int k = e.getkeycode();
    switch (k) {
    case keyevent.vk_up:
      if (b[0].fx != "sz" && b[0].fx != "xz") {
        b[0].fx = "sz";
      }
      break;
    case keyevent.vk_down:
      if (b[0].fx != "sz" && b[0].fx != "xz") {
        b[0].fx = "xz";
      }
      break;
    case keyevent.vk_left:
      if (b[0].fx != "zz" && b[0].fx != "yz") {
        b[0].fx = "zz";
      }
      break;
    case keyevent.vk_right:
      if (b[0].fx != "zz" && b[0].fx != "yz") {
        b[0].fx = "yz";
      }
      break;
    }
    repaint();
  }
  public void keyreleased(keyevent e) {
  }
}

body类

package tcs;
public class body {
public int x=0;
public int y=0;
public int speed;
private string str;
public string fx;
public body(){
  fx="yz";
}
public int getx() {
  return x;
}
public void setx(int x) {
  this.x = x;
}
public int gety() {
  return y;
}
public void sety(int y) {
  this.y = y;
}
public string getstr() {
  return str;
}
public void setstr(string str) {
  this.str = str;
}
public void sz(){
  this.y+=-speed;
}
public void xz(){
  this.y+=speed;
}
public void zz(){
  this.x+=-speed;
}
public void yz(){
  this.x+=speed;
}
public void move(){
  if(fx=="xz"){
    xz();
  }
  if(fx=="sz"){
    sz();
  }
  if(fx=="zz"){
    zz();
  }
  if(fx=="yz"){
    yz();
  }
}
}

宝物类

package tcs;
public class treasure {
public int x;
public int y;
public string str;
}

point类

package tcs;
public class point {
public int x;
public int y;
public string fx;
public point(int x,int y,string fx){
  this.x=x;
  this.y=y;
  this.fx=fx;
}
public boolean equals(object o){
  if(o instanceof point){
    point p=(point)o;
    if(p.x==this.x&&p.y==this.y){
      return true;
    }
  }
  if(o==this){return true;}
  if(o==null){return false;}
  return false;}
}

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