本篇文章给大家详细介绍一下Java实现贪吃蛇小游戏的方法。有一定的参考价值,有需要的朋友可以参考一下,希望对大家有所帮助。
程序结构图如图:
代码如下:
package com.snake;import javax.swing.*;import java.net.URL;public class Data { //贪吃蛇头部 public static URL upUrl = Data.class.getResource("/statics/up.png"); public static ImageIcon up = new ImageIcon(upUrl); public static URL downUrl = Data.class.getResource("/statics/down.png"); public static ImageIcon down = new ImageIcon(downUrl); public static URL leftUrl = Data.class.getResource("/statics/left.png"); public static ImageIcon left = new ImageIcon(leftUrl); public static URL rightUrl = Data.class.getResource("/statics/right.png"); public static ImageIcon right = new ImageIcon(rightUrl); //贪食蛇身体 public static URL bodyUrl = Data.class.getResource("/statics/body.png"); public static ImageIcon body = new ImageIcon(bodyUrl); //食物 public static URL foodUrl = Data.class.getResource("/statics/food.png"); public static ImageIcon food = new ImageIcon(foodUrl);}
代码如下:
package com.snake;import javax.swing.*;import java.awt.*;public class StartGame { public static void main(String[] args){ //建立游戏窗口 JFrame frame = new JFrame("Java-贪吃蛇小游戏");//标题 frame.setSize(900,720);//窗口大小 frame.setLocationRelativeTo(null);//窗口显示屏幕中间 frame.setResizable(false);//固定窗口大小 frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);//设置窗体关闭事件 frame.add(new GamePanel());//添加游戏内容 frame.setVisible(true);//设置窗体可见 }}
package com.snake;import javax.swing.*;import java.awt.*;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.awt.event.KeyEvent;import java.awt.event.KeyListener;import java.util.Random;public class GamePanel extends JPanel implements KeyListener, ActionListener { int[] snakeX = new int[500];//贪吃蛇横坐标 int[] snakeY = new int[500];//贪吃蛇纵坐标 int foodX;//食物横坐标 int foodY;//食物蛇纵坐标 int length;//贪吃蛇的长度 String direction;//贪吃蛇头方向 int score;//积分 Random r = new Random(); Timer timer = new Timer(100,this); boolean isStart; boolean isFail; //构造函数 public GamePanel(){ init(); this.setFocusable(true); this.addKeyListener(this); timer.start(); } private void init(){ length=3; snakeX[0]=100;snakeY[0]=100; snakeX[1]=75;snakeY[1]=100; snakeX[2]=50;snakeY[2]=100; direction = "R"; eat(foodX,foodY); isStart = false; isFail = false; score = 0; } private void eat(int x,int y){ x= 25 + 25*r.nextInt(34); y= 75 + 25*r.nextInt(24); for (int i = 0; i < length; i++) { if(snakeX[i]==x&&snakeY[i]==y){ x = 25 + 25*r.nextInt(34); y = 75 + 25*r.nextInt(24); } } foodX = x;foodY = y; } protected void paintComponent(Graphics g) { super.paintComponent(g); this.setBackground(Color.white);//设置背景板为白色 //画标题 g.setColor(Color.GREEN); g.setFont(new Font("幼圆",Font.BOLD,50)); g.drawString("贪吃蛇游戏",300,60); //绘制游戏区域 g.setColor(Color.GRAY); g.fillRect(25,75,850,600); //画贪吃蛇头部 if(direction=="R"){ Data.right.paintIcon(this,g,snakeX[0],snakeY[0]); } else if(direction=="L"){ Data.left.paintIcon(this,g,snakeX[0],snakeY[0]); } if(direction=="U"){ Data.up.paintIcon(this,g,snakeX[0],snakeY[0]); } else if(direction=="D"){ Data.down.paintIcon(this,g,snakeX[0],snakeY[0]); } //画身体 for (int i = 1; i < length ; i++) { Data.body.paintIcon(this,g,snakeX[i],snakeY[i]); } //画食物 Data.food.paintIcon(this,g,foodX,foodY); //绘制积分栏 g.setColor(Color.BLACK); g.setFont(new Font("幼圆",Font.BOLD,20)); g.drawString("长度:"+length,730,30); g.drawString("得分:"+score,730,60); //游戏开始提醒 if(isStart==false){ g.setColor(Color.BLACK); g.setFont(new Font("幼圆",Font.BOLD,40)); g.drawString("按空格键开始游戏",300,300); } //失败判断 if(isFail){ g.setColor(Color.RED); g.setFont(new Font("幼圆",Font.BOLD,40)); g.drawString("游戏失败,按空格键重新开始",300,300); } } @Override public void keyPressed(KeyEvent e) { int keyCode = e.getKeyCode();//获取按下的按键 //判断空格 if(keyCode==KeyEvent.VK_SPACE){ if(isFail){ isFail = false; init(); } else{ isStart = !isStart; } repaint(); } //判断方向 if(keyCode==KeyEvent.VK_LEFT&&direction!="R"){ direction = "L"; } else if(keyCode==KeyEvent.VK_RIGHT&&direction!="L"){ direction = "R"; } else if(keyCode==KeyEvent.VK_UP&&direction!="D"){ direction = "U"; } else if(keyCode==KeyEvent.VK_DOWN&&direction!="U"){ direction = "D"; } } @Override public void keyReleased(KeyEvent e) { } @Override public void keyTyped(KeyEvent e) { } @Override public void actionPerformed(ActionEvent e) { //判断游戏状态 if(isStart&&!isFail){ //移动身体 for (int i = length-1; i > 0 ; i--) { snakeX[i] = snakeX[i-1]; snakeY[i] = snakeY[i-1]; } //移动头部 if(direction=="R"){ snakeX[0] += 25; if(snakeX[0]>850){ snakeX[0] = 25; } } else if(direction=="L"){ snakeX[0] -= 25; if(snakeX[0]<25){ snakeX[0] = 850; } } else if(direction=="U"){ snakeY[0] -= 25; if(snakeY[0]<75){ snakeY[0] = 650; } } else if(direction=="D"){ snakeY[0] += 25; if(snakeY[0]>650){ snakeY[0] = 75; } } //吃食物 if(snakeX[0]==foodX&&snakeY[0]==foodY){ length++; score += 10; eat(foodX,foodY); } //死亡判定 for (int i = 1; i < length; i++) { if(snakeX[0]==snakeX[i]&&snakeY[0]==snakeY[i]){ isFail=true; } } repaint(); } timer.start(); }}
推荐:《java视频教程》
以上是Java如何实现贪吃蛇小游戏的详细内容。更多信息请关注PHP中文网其他相关文章!