用JAVA写的贪吃蛇

怼烎@ 2024-03-16 10:39 63阅读 0赞

用JAVA写的贪吃蛇，Eclipse平台，2个类。内容入下：

class snake:

\-----------------------

package tanchishe;

import java.awt.Color;

import java.awt.Graphics;

public class Snake \{

private GamePanel panel = null;

int x = 0;

int y = 0;

public Snake(int x, int y, GamePanel panel) \{

this.x = x;

this.y = y;

this.panel = panel;

// 画蛇身

void draw(Graphics g) \{

g.setColor(new Color(255, 255, 255));

g.fillRect(x \* 20, y \* 20, 19, 19);

// 画食物

void drawfood(Graphics g) \{

g.setColor(new Color(255, 255, 255,255));

g.fillOval(x \* 20+5, y \* 20+5, 10, 10);

// 画蛇头

void drawhead(Graphics g) \{

g.setColor(new Color(255, 0, 0));

g.fillRect(x \* 20, y \* 20, 19, 19);

// 蛇头移动

void move(boolean dir, int step) \{

if (dir) \{

x+=step;

\}else \{

y+=step;

panel.repaint();

//蛇移动

public void movebody(Boolean dir, int step) \{

// 蛇头移动

panel.snakehead.move(dir, step);

// 蛇身移动

for (int i = 1; i < panel.snakes.size(); i++) \{

panel.snakes.get(i).x = panel.snakeroad.get(panel.snakeroad.size()-i).x;

panel.snakes.get(i).y = panel.snakeroad.get(panel.snakeroad.size()-i).y;

panel.repaint();

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;

\----------------------

class GamePanel:

\----------------------

package tanchishe;

import java.awt.Color;

import java.awt.Font;

import java.awt.Graphics;

import java.awt.Point;

import java.awt.event.KeyAdapter;

import java.awt.event.KeyEvent;

import java.util.ArrayList;

import javax.swing.JFrame;

import javax.swing.JPanel;

public class GamePanel extends JPanel \{

private static final long serialVersionUID = 1L;

Snake snakehead = null;// 蛇头

Snake snakebody = null;// 蛇身

Snake food = null;// 食物

static JFrame mf = null;// 主窗体

GameThread gt = new GameThread();// 主线程

ArrayList<Point> snakeroad = new ArrayList<>();// 蛇走过的路径数组

ArrayList<Snake> snakes = new ArrayList<>();// 蛇头及蛇身的数组

static int width = 600;// 窗体大小

int row = width / 20;// 按窗体大小及蛇的大小分成上下左右各30格

int col = row;

int step = 1;// 蛇每次移动间隔

int threadspeed = 150;// 主线程sleep间隔

int score = 0; // 分数

boolean dir = false;// 蛇移动方向

boolean gameflag = false;// 游戏暂停或开始判断

boolean dead = false;// 游戏失败判断

// 构造函数

public GamePanel() \{

setBounds(0, 0, width, width);// 窗体大小

setOpaque(false);// 窗体透明

createKeyListener();// 监听键盘

gt.start();// 线程开始

init();// 初始化

// 入口

public static void main(String\[\] args) \{

mf = new JFrame();// frame实例化

mf.setSize(width + 18, width + 15 + 30);// frame大小

mf.setLocationRelativeTo(null);// 屏幕居中显示

mf.setLayout(null);// 布局无

mf.setTitle("Sanke");// 标题

mf.setResizable(false);// 不可放大

mf.getContentPane().setBackground(new Color(0, 139, 0));// 设置背景色

GamePanel gp = new GamePanel();// panel实例化

mf.add(gp);// panel加入frame

mf.setVisible(true);// 显示frame

// 初始化

void init() \{

// 蛇头存在就产生身体

if (snakes.size() > 0) \{

snakebody = new Snake(snakes.get(snakes.size() - 1).x, snakes.get(snakes.size() - 1).y, this);

snakes.add(snakebody);

\} else \{

snakehead = new Snake(1, 1, this);// 蛇头实例化

snakes.add(snakehead);

// food随机产生

food = new Snake((int) (Math.random() \* row), (int) (Math.random() \* row), this);

// 画蛇，食物，提示

@Override

public void paint(Graphics g) \{

super.paint(g);

// 蛇头

if (snakes != null) \{

snakes.get(0).drawhead(g);

// 蛇身体

if (snakes != null) \{

for (int i = 1; i < snakes.size(); i++) \{

snakes.get(i).draw(g);

// food

if (food != null) \{

food.drawfood(g);

// 游戏失败提示

if (dead) \{

g.setColor(new Color(255, 255, 255, 255));

g.setFont(new Font("仿宋", Font.BOLD, 30));

g.drawString("游戏失败！按“空格键”继续", width / 2 - 180, width / 2);

// 游戏暂停提示

if (!gameflag) \{

g.setColor(new Color(255, 255, 255, 255));

g.setFont(new Font("仿宋", Font.BOLD, 30));

g.drawString("游戏暂停！按“P”键开始", width / 2 - 170, width / 2);

// 分数和速度显示

g.setFont(new Font("Arial", Font.BOLD, 14));

g.setColor(new Color(255, 255, 255, 255));

g.drawString("SCORE", 3, width - 5);

g.drawString(String.valueOf(score), 60, width - 5);// 显示分数

g.drawString("SPEED", 100, width - 5);

g.drawString(String.valueOf(threadspeed), 155, width - 5);// 显示速度

g.setFont(new Font("仿宋", Font.BOLD, 14));

g.drawString("按“R”重新开始游戏", width - 150, width - 5);// 重新开始游戏

//画格子

for(int i=0;i<row;i++) \{

for(int j=0;j<col;j++) \{

g.setColor(new Color(173,216,230,25));

g.drawRect(j\*20, i\*20, 20, 20);

repaint();

// 主线程

class GameThread extends Thread \{

@Override

public void run() \{

while (true) \{

try \{

Thread.sleep(threadspeed);// 间隔150毫秒

\} catch (InterruptedException e) \{

e.printStackTrace();

if (snakehead != null & !dead & gameflag) \{

// 蛇头移动坐标录入snakeroad数组

snakeroad.add(new Point(snakehead.x, snakehead.y));

if (snakeroad.size() == snakes.size()) \{

snakeroad.remove(0);// 控制snakeroad数组长度

// 蛇移动

snakehead.movebody(dir, step);

outofBoard();// 边界穿透

dead();// 游戏失败判断

hit();// 吃food判断

// 边界穿透

void outofBoard() \{

Snake snake = null;

// 四边界限

for (int i = 0; i < snakes.size(); i++) \{

snake = snakes.get(i);

if (snake.getY() < 0) \{

snake.setY(row - 1);

\} else if (snake.getY() > row - 1) \{

snake.setY(0);

\} else if (snake.getX() < 0) \{

snake.setX(row - 1);

\} else if (snake.getX() > row - 1) \{

snake.setX(0);

// 吃food

void hit() \{

if (food.getX() == snakehead.x & food.getY() == snakehead.y) \{

init();// 新增food和蛇加长

score++;// 分数增加

// 蛇头碰到蛇身体则失败

void dead() \{

for (int i = 0; i < snakes.size(); i++) \{

for (int j = 0; j < snakes.size(); j++) \{

if (i != j) \{

if (snakes.get(j).getX() == snakes.get(i).getX() && snakes.get(j).getY() == snakes.get(i).getY()) \{

dead = true;

// 重新开始游戏

void restart() \{

snakehead = null;

food = null;

snakes.clear();

snakeroad.clear();

threadspeed = 150;

score = 0;

dir = false;

gameflag = false;

dead = false;

init();

// 键盘监听

private void createKeyListener() \{

KeyAdapter l = new KeyAdapter() \{

@Override

public void keyPressed(KeyEvent e) \{

int key = e.getKeyCode();

switch (key) \{

case KeyEvent.VK\_P:// 按p键控制游戏暂停或开始

if (!gameflag) \{

gameflag = true;

\} else \{

gameflag = false;

break;

// 空格

case KeyEvent.VK\_SPACE:

dead = false;

break;

// 向上

case KeyEvent.VK\_UP:

case KeyEvent.VK\_W:

dir = false;

step=-1;

break;

// 向右

case KeyEvent.VK\_D:

case KeyEvent.VK\_RIGHT:

dir = true;

step=1;

break;

// 向下

case KeyEvent.VK\_S:

case KeyEvent.VK\_DOWN:

dir = false;

step=1;

break;

// 向左

case KeyEvent.VK\_A:

case KeyEvent.VK\_LEFT:

dir = true;

step=-1;

break;

case KeyEvent.VK\_1:

threadspeed += 5;// 按1速度减慢5

break;

case KeyEvent.VK\_2:

if (threadspeed > 0) \{

threadspeed -= 5;// 按2速度加快5

break;

case KeyEvent.VK\_R:

restart();

break;

\};

mf.addKeyListener(l);// 主窗体增加键盘监听

用JAVA写的贪吃蛇

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