贪吃蛇游戏源程序（JAVA实现），贪吃蛇源程序

贪吃蛇游戏源程序（JAVA实现），贪吃蛇源程序

      前前后后大概用了快一个星期的时间吧，终于把这个贪吃蛇初步实现了。当然其中还是有很多功能没有实现的，特别是判断蛇怎么才算死，还没有具体实现。现在先发布一下吧，打算今后有时间话，慢慢优化之后再发布

 

首先我还是先强调一下要完成这个贪吃蛇游戏，必须先掌握的JAVA知识：

1. GUI画图，这里我采用的还是AWT，通过画图把蛇和食物画出来

2. java事件响应机制，通过按方向键控制蛇的方向。

2. 线程。通过线程，使蛇运动起来。

 

PS:我个人感觉，贪吃蛇这个游戏，如果要初步实现的话，还是比较容易的，只要你肯花功夫。

 

 

源程序：

我写了三个类，SnakeClient（实现窗口的类），Snake（蛇类），Food（食物类）

 

SnakeClient类：

 import java.awt.*; import java.awt.event.*; import java.util.*; public class SnakeClient extends Frame{ public final static int WIDTH = 600; public final static int HEIGHT = 600; Snake snake = new Snake(this); Food food = new Food(this); public void lanch(){ this.setBounds(200,100, WIDTH,HEIGHT); this.setTitle("佳墩软件——贪吃蛇"); this.setVisible(true); this.setResizable(false); //实现程序运行关闭的功能 this.addWindowListener(new WindowAdapter(){ public void windowClosing(WindowEvent e){ System.exit(-1); } }); this.addKeyListener(new KeyMointer()); new Thread(new PaintThread()).start(); } //画图函数 public void paint(Graphics g){ snake.paint(g); food.paint(g); g.drawString("蛇的长度"+snake.number, 20, 50); } //起线程，一个PaintThread类 class PaintThread implements Runnable{ public void run() { //while（true）保持蛇能一直运行 while(true){ repaint(); try { Thread.sleep(250);//物体运行太快了，这是减慢速度而用 } catch (InterruptedException e) { e.printStackTrace(); } } } } //对键盘的蛇的控制 class KeyMointer extends KeyAdapter{ public void keyPressed(KeyEvent e){ snake.keyPress(e); } } public static void main(String[] args){ SnakeClient snakeClient = new SnakeClient(); snakeClient.lanch(); } }

 

Snake类：

import java.awt.*; import java.awt.event.*; public class Snake { final static int WIDTH = 20;//蛇身的宽 final static int HEIGHT = 20;//蛇身的高 final static int maxLong = 900;//蛇最多有的节数 enum Direction{Left,Up,Right,Down}; int number = 5;//蛇有几节 int[] X = new int[maxLong]; int[] Y = new int[maxLong]; Direction snakeDirection = Direction.Down; SnakeClient sc; //构造函数 public Snake(SnakeClient sc){ this.number = 5; for(int i=0;i<=number;i++){ X[i] = 100; Y[i] = 100+i*HEIGHT; } this.snakeDirection = Direction.Right; this.sc = sc; } //蛇向四个方向的移动 public void move(){ if(this.snakeDirection==Direction.Down){ for(int i=0;i<number;i++){ X[i] = X[i+1]; Y[i] = Y[i+1]; } Y[number] = Y[number]+HEIGHT; } else if(this.snakeDirection==Direction.Right){ for(int i=0;i<number;i++){ X[i] = X[i+1]; Y[i] = Y[i+1]; } X[number] += WIDTH; } else if(this.snakeDirection==Direction.Up){ for(int i=0;i<number;i++){ X[i] = X[i+1]; Y[i] = Y[i+1]; } Y[number] = Y[number]-HEIGHT; } if(this.snakeDirection==Direction.Left){ for(int i=0;i<number;i++){ X[i] = X[i+1]; Y[i] = Y[i+1]; } X[number] -= WIDTH; } } //将蛇画出来 public void paint(Graphics g){ Color c = g.getColor(); g.setColor(Color.BLUE); for(int i=0;i<=number;i++){ g.fillRect(X[i],Y[i], WIDTH, HEIGHT); } g.setColor(c); move(); eatFood(this.sc.food); } //方向键对蛇的控制 public void keyPress(KeyEvent e){ int press = e.getKeyCode(); switch(press){ case KeyEvent.VK_LEFT: this.snakeDirection = Direction.Left; break; case KeyEvent.VK_UP: this.snakeDirection = Direction.Up; break; case KeyEvent.VK_RIGHT: this.snakeDirection = Direction.Right; break; case KeyEvent.VK_DOWN: this.snakeDirection = Direction.Down; break; } } //蛇吃到了食物 public void eatFood(Food food){ //碰撞检测 if(this.getRec().intersects(food.getRec())){ number++; X[number] = sc.food.getX(); Y[number] = sc.food.getY(); this.sc.food.setX(((int)(Math.random()*29))*Snake.WIDTH); this.sc.food.setY((int)(Math.random()*29+1)*Snake.HEIGHT); } } public Rectangle getRec(){ return new Rectangle(X[number],Y[number],WIDTH,HEIGHT); } }

 

Food类：

import java.awt.*; import java.awt.event.*; public class Food { public static int WIDTH = 20; public static int HEIGHT = 20; private boolean isLive = true;//判断食物食物是否已经被吃了 int x = 300,y = 300;//x,y表示食物出现的地点 SnakeClient sc; public Food(SnakeClient sc){ x = ((int)(Math.random()*29))*Snake.WIDTH; y = (int)(Math.random()*29+1)*Snake.HEIGHT; isLive = true; this.sc = sc; } public boolean isLive() { return isLive; } public void setLive(boolean isLive) { this.isLive = isLive; } 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; } //将这个食物花出来 public void paint(Graphics g){ if(isLive==true){ Color c = g.getColor(); g.setColor(Color.red); g.fillRect(x, y, WIDTH, HEIGHT); g.setColor(c); } } public Rectangle getRec(){ return new Rectangle(x,y,WIDTH,HEIGHT); } }

 

游戏截图：