本文实例为大家分享了Java实现贪吃蛇小游戏的具体代码，供大家参考，具体内容如下
主启动类
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 |
import javax.swing.*;
/** * @author The Setting sun * @create 2021-09-11 15:19 */ //主启动类 public class StartGame { public static void main(String[] args) { JFrame frame = new JFrame();
frame.setResizable( false ); //窗口大小不可变 frame.setSize( 900 , 720 ); //窗口大小 frame.setLocationRelativeTo( null ); //窗口居中 frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE); //窗口关闭事件
frame.add( new GamePanel());
frame.setVisible( true ); //窗口可见 } } |
资源类（图标）
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 |
import javax.swing.*; import java.net.URL;
/** @author The Setting sun @create 2021-09-11 15:40 */ public class Data { public static URL headerURL = Data. class .getResource( "img/header.png" ); public static ImageIcon header = new ImageIcon(headerURL);
public static URL upURL = Data. class .getResource( "img/tx.png" ); public static ImageIcon up = new ImageIcon(upURL);
public static URL downURL = Data. class .getResource( "img/down.png" ); public static ImageIcon down = new ImageIcon(downURL);
public static URL rightURL = Data. class .getResource( "img/right.png" ); public static ImageIcon right = new ImageIcon(rightURL);
public static URL leftURL = Data. class .getResource( "img/left.png" ); public static ImageIcon left = new ImageIcon(leftURL);
public static URL bodyURL = Data. class .getResource( "img/body.png" ); public static ImageIcon body = new ImageIcon(bodyURL);
public static URL foodURL = Data. class .getResource( "img/food.png" ); public static ImageIcon food = new ImageIcon(foodURL); } |
程序类
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 |
import javax.swing.*; import java.awt.*; import java.awt.event.*; import java.util.Random;
/** * @author The Setting sun * @create 2021-09-11 15:24 */ //游戏面板 public class GamePanel extends JPanel implements KeyListener, ActionListener { //蛇 int length; //蛇的长度 int [] snakeX = new int [ 600 ]; //蛇的x坐标 25*25 int [] snakeY = new int [ 500 ]; //蛇的y坐标 25*25 String orient; //初始方向
//食物 int foodX; int foodY; Random random = new Random();
boolean isStart = false ; //游戏当前状态：默认为停止 boolean isFail = false ; //游戏是否失败了，默认为没有
int score; //积分
//定时器 ms为单位 Timer timer = new Timer( 140 , this ); //100毫秒刷新一次
//构造器 public GamePanel() { init(); //初始化 setFocusable( true ); //获得焦点 addKeyListener( this ); //获得键盘监听事件 timer.start(); //游戏一开始定时器就启动 }
//初始化 public void init() { length = 3 ; //初始长度为3
snakeX[ 0 ] = 100 ; snakeY[ 0 ] = 100 ; //头的坐标
snakeX[ 1 ] = 75 ; snakeY[ 1 ] = 100 ; //第1个身体的坐标
snakeX[ 2 ] = 50 ; snakeY[ 2 ] = 100 ; //第2个身体的坐标
orient = "R" ; //初始方向向右
//让食物随机分布在界面上 foodX = 25 + 25 * random.nextInt( 34 ); foodY = 75 + 25 * random.nextInt( 24 );
score = 0 ; //积分 }
//绘制面板，游戏中的东西都用这个来画 @Override protected void paintComponent(Graphics g) { super .paintComponent(g); //清屏 setBackground(Color.pink);
//绘制静态面板 Data.header.paintIcon( this , g, 25 , 11 ); g.fillRect( 25 , 75 , 850 , 600 );
//绘制积分面板 g.setColor(Color.GREEN); g.setFont( new Font( "微软雅黑" , Font.BOLD, 16 )); g.drawString( "长度：" + length, 750 , 35 ); g.drawString( "积分：" + score, 750 , 50 );
//绘制食物 Data.food.paintIcon( this , g, foodX, foodY);
//绘制蛇 switch (orient) { case "R" : Data.right.paintIcon( this , g, snakeX[ 0 ], snakeY[ 0 ]); //蛇初始化向右，通过判断转变方向 break ; case "L" : Data.left.paintIcon( this , g, snakeX[ 0 ], snakeY[ 0 ]); //蛇初始化向右，通过判断转变方向 break ; case "U" : Data.up.paintIcon( this , g, snakeX[ 0 ], snakeY[ 0 ]); //蛇初始化向右，通过判断转变方向 break ; case "D" : Data.down.paintIcon( this , g, snakeX[ 0 ], snakeY[ 0 ]); //蛇初始化向右，通过判断转变方向 break ; }
//动态添加身体 for ( int i = 1 ; i < length; i++) { Data.body.paintIcon( this , g, snakeX[i], snakeY[i]); } // Data.body.paintIcon(this,g,snakeX[1],snakeY[1]);//第1个身体的坐标 // Data.body.paintIcon(this,g,snakeX[2],snakeY[2]);//第2个身体的坐标
//游戏状态 if (isStart == false ) { g.setColor(Color.WHITE); g.setFont( new Font( "微软雅黑" , Font.BOLD, 40 )); g.drawString( "按下空格开始游戏" , 300 , 300 ); }
if (isFail) { g.setColor(Color.RED); g.setFont( new Font( "微软雅黑" , Font.BOLD, 40 )); g.drawString( "犹豫就会败北！" , 300 , 300 ); } }
//键盘监听器 @Override public void keyPressed(KeyEvent e) { //按下 int keyCode = e.getKeyCode(); //获得键盘按键码
if (keyCode == KeyEvent.VK_SPACE) { //按下空格 if (isFail) { //重新开始 isFail = false ; init(); } else { isStart = !isStart; //取反 repaint(); } }
//修复了一个蛇可以反向移动的bug if (orient.equals( "U" ) && keyCode == KeyEvent.VK_DOWN){ keyCode = KeyEvent.VK_UP; }
if (orient.equals( "D" ) && keyCode == KeyEvent.VK_UP){ keyCode = KeyEvent.VK_DOWN; }
if (orient.equals( "L" ) && keyCode == KeyEvent.VK_RIGHT){ keyCode = KeyEvent.VK_LEFT; }
if (orient.equals( "R" ) && keyCode == KeyEvent.VK_LEFT){ keyCode = KeyEvent.VK_RIGHT; }
//控制蛇改变方向移动 switch (keyCode) { case KeyEvent.VK_UP:
orient = "U" ; break ; case KeyEvent.VK_DOWN: orient = "D" ; break ; case KeyEvent.VK_LEFT: orient = "L" ; break ; case KeyEvent.VK_RIGHT: orient = "R" ; break ; }
}
//事件监听：需要通过固定事件来刷新，1秒10次（帧率） @Override public void actionPerformed(ActionEvent e) { if (isStart && isFail == false ) { //如果游戏是开始状态，就让蛇动起来 //吃食物 if (snakeX[ 0 ] == foodX && snakeY[ 0 ] == foodY) { //长度+1 length++; score += 10 ;
//再次让食物随机出现 foodX = 25 + 25 * random.nextInt( 34 ); foodY = 75 + 25 * random.nextInt( 24 ); }
//身体移动 for ( int i = length - 1 ; i > 0 ; i--) { snakeX[i] = snakeX[i - 1 ]; snakeY[i] = snakeY[i - 1 ]; }
//走向 switch (orient) { case "R" : snakeX[ 0 ] = snakeX[ 0 ] + 25 ; //边界判断 if (snakeX[ 0 ] > 850 ) { snakeX[ 0 ] = 25 ; } break ; case "L" : snakeX[ 0 ] = snakeX[ 0 ] - 25 ; //边界判断 if (snakeX[ 0 ] < 25 ) { snakeX[ 0 ] = 850 ; } break ; case "U" : snakeY[ 0 ] = snakeY[ 0 ] - 25 ; //边界判断 if (snakeY[ 0 ] < 75 ) { snakeY[ 0 ] = 650 ; } break ; case "D" : snakeY[ 0 ] = snakeY[ 0 ] + 25 ; //边界判断 if (snakeY[ 0 ] > 650 ) { snakeY[ 0 ] = 75 ; } break ; }
//失败判断，撞到自己就GG for ( int i = 1 ; i < length; i++) { if (snakeX[ 0 ] == snakeX[i] && snakeY[ 0 ] == snakeY[i]){ isFail = true ; } }
repaint(); //刷新页面 }
timer.start(); //定时器开启 }
@Override public void keyTyped(KeyEvent e) {
}
@Override public void keyReleased(KeyEvent e) {
} } |
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。
原文链接：https://blog.csdn.net/m0_51642083/article/details/120256042
查看更多关于Java实现简易GUI贪吃蛇小游戏的详细内容...