Java版贪吃蛇制作过程分享

这是本人写的第一个游戏  简单写下过程

开发环境：

Java SE 8  Ecplice

思路：蛇的可以看成是由一个一个正方形组成，用Arraylist来记录下每一个正方体的坐标位置，先把前一个方块的坐标替换下一个方块的坐标，再通过move方法移动蛇头，最后repaint，如此循环。

需要掌握：

1.JFrame和JPanel的使用方法

2.Arraylist的使用方法

3.线程的创建

4.KeyListener的使用

5.双缓冲

共有两个类：

Test：

<pre name="code" class="java">import java.awt.BorderLayout;import java.awt.Color;import javax.swing.JFrame;public class Test {public static void main(String args[]){JFrame frame = new JFrame();Mypanel mp = new Mypanel();mp.setBackground(Color.WHITE);//设置JPanel背景色mp.addKeyListener(mp);frame.addKeyListener(mp);//绑定监听器frame.add(mp,BorderLayout.CENTER);//把JPanel放到JFrame中央frame.setSize(1920,1080);frame.setVisible(true);frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);Thread t = new Thread(mp);t.start();//启动线程}}

Mypanel:

import java.awt.Color;import java.awt.Graphics;import java.awt.Image;import java.awt.event.KeyEvent;import java.awt.event.KeyListener;import java.util.ArrayList;import javax.swing.JPanel;public class Mypanel extends JPanel implements Runnable, KeyListener{int p,o,q,w;//食物随机出现int x_food = (int)(Math.random()*60)*30+100;int y_food = (int)(Math.random()*30)*30+100;int x[] = new int[10];int y[] = new int[10];int x_c[];int y_c[];int x_1 = 30;int y_1 = 0;int check_food = 0;int check_self = 0;ArrayList list_x = new ArrayList();ArrayList list_y = new ArrayList();Image ImageBuffer = null;Graphics GraImage = null;String direction = "right";//构造函数 初始化蛇的位置 public Mypanel(){for(int i = 0; i < 10; i++){x[i] = 100 + 30*i;y[i] = 400;list_x.add(new Integer(x[i]));list_y.add(new Integer(y[i]));}}public void paint(Graphics g){super.paint(g);g.setColor(Color.BLACK);g.fillRect(x_food, y_food, 30, 30);if(check_self == 1){g.setColor(Color.BLACK);g.fillRect(0, 0, 1920, 1080);}for(int i = 0; i < list_x.size(); i++){g.fillRect(((Integer) list_x.get(i)).intValue(), ((Integer) list_y.get(i)).intValue(), 30, 30);}}public void run(){while(true){for(int i = 0; i < list_x.size()-1; i++){list_x.set(i,list_x.get(i + 1));list_y.set(i,list_y.get(i + 1));}move(direction);stay();food();carshcheck();}}//重画public void stay(){try{Thread.sleep(200);}catch(Exception e){}repaint();}public void move(String d){if(d == "right"){p = 1;o = 0;}if(d =="left"){p = -1;o = 0;}if(d =="up"){p = 0;o = -1;}if(d =="down"){p = 0;o = 1;}q = ((Integer) list_x.get(list_x.size()-1)).intValue();w = ((Integer) list_y.get(list_y.size()-1)).intValue();q += 30*p;w += 30*o;list_x.set(list_x.size()-1,new Integer(q)) ;list_y.set(list_y.size()-1,new Integer(w)) ;//代码检查要细心}public void food(){check_food = 0;if(direction == "left"){x_1 = 30; y_1 = 0;}if(direction == "right"){x_1 = -30;y_1 = 0;}if(direction == "up"){x_1 = 0; y_1 = 30;}if(direction == "down"){x_1 = 0;y_1 = -30;}if(q == x_food + x_1 && w == y_food + y_1){list_x.add(new Integer(x_food));list_y.add(new Integer(y_food));check_food = 1;repaint();x_food = (int)(Math.random()*60)*30+100;y_food = (int)(Math.random()*30)*30+100;}}//自身碰撞检测public void carshcheck(){for(int i = 0; i < list_x.size(); i++){for(int j = i + 1; j < list_x.size(); j++){if(list_x.get(i).equals(list_x.get(j)) && list_y.get(i).equals(list_y.get(j)) && check_food == 0){check_self = 1;}}}}//按键处理public void keyPressed(KeyEvent arg0) {if(arg0.getKeyCode()==37 && direction!="right"){direction = "left";}if(arg0.getKeyCode()==38 && direction!="down"){direction = "up";}if(arg0.getKeyCode()==39 && direction!="left"){direction = "right";}if(arg0.getKeyCode()==40 && direction!="up"){direction = "down";}}public void keyReleased(KeyEvent arg0) {}public void keyTyped(KeyEvent arg0) {}//双缓冲public void update(Graphics g){ImageBuffer = createImage(this.getWidth(), this.getHeight()); GraImage = ImageBuffer.getGraphics();       paint(GraImage);        GraImage.dispose();      g.drawImage(ImageBuffer, 0, 0, this);   } }

写得不是很详细  有问题微博  @-Mr-湯- 非常乐意为你解答