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package games;
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import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.util.*;
import static java.lang.Math.*;//静态导入
/*
* 此类是贪吃蛇的简单实现方法
* 自己可以加入在开始时的设置，比如
* 选关，初始的蛇的长度等等
*/
public class Snake extends JPanel {
private static final long serialVersionUID = 1L;
private Direction dir;// 要走的方向
private int blockWidth = 10;// 块大小
private int blockSpace = 2;// 块之间的间隔
private long sleepTime;// 重画的进间间隔
private MySnake my;
private int total;// 代表蛇的长度
private Rectangle food;// 代表蛇的食物
private volatile boolean go;
private int round;// 表示第几关
public Snake(JFrame jf) {
initOther();
// 为顶级窗口类JFrame添加事件处理函数
jf.addKeyListener(new KeyAdapter() {
public void keyReleased(KeyEvent ke) {
int code = ke.getKeyCode();
if (code == KeyEvent.VK_RIGHT) {
if (dir != Direction.WEST)
dir = Direction.EAST;
}
else if (code == KeyEvent.VK_LEFT) {
if (dir != Direction.EAST)
dir = Direction.WEST;
}
else if (code == KeyEvent.VK_UP) {
if (dir != Direction.SOUTH)
dir = Direction.NORTH;
}
else if (code == KeyEvent.VK_DOWN) {
if (dir != Direction.NORTH)
dir = Direction.SOUTH;
} else if (code == KeyEvent.VK_ENTER) {
if (!go)
initOther();
}
}
});
this.setBounds(300, 300, 400, 400);
this.setVisible(true);
}
// 随机生成一个食物的位置
private void makeFood() {
int x = 40 + (int) (random() * 30) * 12;
int y = 10 + (int) (random() * 30) * 12;
food = new Rectangle(x, y, 10, 10);
}
// 做一些初始化的工作
private void initOther() {
dir = Direction.EAST;
sleepTime = 500;
my = new MySnake();
makeFood();
total = 3;
round = 1;
new Thread(new Runnable() {
public void run() {
go = true;
while (go) {
try {
Thread.sleep(sleepTime);
repaint();
} catch (Exception exe) {
exe.printStackTrace();
}
}
}
}).start();
}
// 处理多少关的函数
private void handleRound() {
if (total == 6) {
round = 2;
sleepTime = 300;
} else if (total == 10) {
round = 3;
sleepTime = 200;
} else if (total == 15) {
round = 4;
sleepTime = 100;
} else if (total == 18) {
round = 5;
sleepTime = 50;
} else if (total == 20) {
round = 6;
sleepTime = 20;
} else if (total 21) {
round = 7;
sleepTime = 15;
}
}
// 把自己的组件全部画出来
public void paintComponent(Graphics g) {
g.setColor(Color.PINK);
g.fillRect(0, 0, this.getWidth(), this.getHeight());
g.setColor(Color.BLACK);
g.drawRect(40, 10, 358, 360);
if (go) {
my.move();
my.draw(g);
g.setFont(new Font("黑体", Font.BOLD, 20));
g.drawString("您的得分：" + (total * 10) + " 第" + round + "关", 40,
400);
} else {
g.setFont(new Font("黑体", Font.BOLD, 20));
g.drawString("游戏结束,按回车(ENTER)键重玩！", 40, 440);
}
g.setColor(Color.RED);
g.fillRect(food.x, food.y, food.width, food.height);
}
private class MySnake {
private ArrayListRectangle list;
public MySnake() {
list = new ArrayListRectangle();
list.add(new Rectangle(160 + 24, 130, 10, 10));
list.add(new Rectangle(160 + 12, 130, 10, 10));
list.add(new Rectangle(160, 130, 10, 10));
}
// 蛇移动的方法
public void move() {
if (isDead()) {
go = false;
return;
}
if (dir == Direction.EAST) {
Rectangle rec = list.get(0);
Rectangle rec1 = new Rectangle(rec.x
+ (blockWidth + blockSpace), rec.y, rec.width,
rec.height);
list.add(0, rec1);
} else if (dir == Direction.WEST) {
Rectangle rec = list.get(0);
Rectangle rec1 = new Rectangle(rec.x
- (blockWidth + blockSpace), rec.y, rec.width,
rec.height);
list.add(0, rec1);
} else if (dir == Direction.NORTH) {
Rectangle rec = list.get(0);
Rectangle rec1 = new Rectangle(rec.x, rec.y
- (blockWidth + blockSpace), rec.width, rec.height);
list.add(0, rec1);
} else if (dir == Direction.SOUTH) {
Rectangle rec = list.get(0);
Rectangle rec1 = new Rectangle(rec.x, rec.y
+ (blockWidth + blockSpace), rec.width, rec.height);
list.add(0, rec1);
}
if (isEat()) {
handleRound();
makeFood();
} else {
list.remove(list.size() - 1);
}
}
// 判断是否吃到了食物
private boolean isEat() {
if (list.get(0).contains(food)) {
total++;
return true;
} else
return false;
}
// 判断是否死了，如果碰壁或者自己吃到自己都算死了
private boolean isDead() {
Rectangle temp = list.get(0);
if (dir == Direction.EAST) {
if (temp.x == 388)
return true;
else {
Rectangle comp = new Rectangle(temp.x + 12, temp.y, 10, 10);
for (Rectangle rec : list) {
if (rec.contains(comp))
return true;
}
}
return false;
} else if (dir == Direction.WEST) {
if (temp.x == 40)
return true;
else {
Rectangle comp = new Rectangle(temp.x - 12, temp.y, 10, 10);
for (Rectangle rec : list) {
if (rec.contains(comp))
return true;
}
}
return false;
} else if (dir == Direction.NORTH) {
if (temp.y == 10)
return true;
else {
Rectangle comp = new Rectangle(temp.x, temp.y - 12, 10, 10);
for (Rectangle rec : list) {
if (rec.contains(comp))
return true;
}
}
return false;
} else if (dir == Direction.SOUTH) {
if (temp.y == 358)
return true;
else {
Rectangle comp = new Rectangle(temp.x, temp.y + 12, 10, 10);
for (Rectangle rec : list) {
if (rec.contains(comp))
return true;
}
}
return false;
} else {
return false;
}
}
// 把自己画出来
public void draw(Graphics g) {
for (Rectangle rec : list) {
g.fillRect(rec.x, rec.y, rec.width, rec.height);
}
}
}
public static void main(String arsg[]) {
JFrame jf = new JFrame("贪吃蛇");
Snake s = new Snake(jf);
jf.getContentPane().add(s, BorderLayout.CENTER);
jf.setBounds(300, 300, 500, 500);
jf.setVisible(true);
jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
}
// 定义一个枚举，在此也可以用接口或者常量值代替
enum Direction {
EAST, SOUTH, WEST, NORTH;
}
用慧编程做贪吃蛇代码过程如下：
1、我们需要建立四个头文件，然后分别设置蛇的状态，上下左右，这是蛇能够有方向可走的前提，然后我们再设置蛇身的节点，定义一个简单的函数，这样蛇的全身以及他的行走方向就弄完了。
2、贪吃蛇不能穿墙代码。
3、第二步，一个函数这个函数的目的是贪吃蛇不能穿墙，很简单的代码分别设置长宽的最大位移，在内部范围内设置为一即可通过，否则不能穿墙。贪吃蛇随机生成一个食物。
4、设置一个随机函数。这样贪吃蛇代码就做好了。
慧编程是一款面向STEAM教育领域的积木式和代码编程软件，基于图形化编程开发。
import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Rectangle;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.awt.image.BufferedImage;
import java.util.ArrayList;
import java.util.List;
import javax.swing.JFrame;
public class InterFace extends JFrame {
/**
* WIDTH:宽
* HEIGHT:高
* SLEEPTIME:可以看作蛇运动的速度
* L = 1,R = 2, U = 3, D = 4 左右上下代码
*/
public static final int WIDTH = 800, HEIGHT = 600, SLEEPTIME = 200, L = 1,R = 2, U = 3, D = 4;
BufferedImage offersetImage= new BufferedImage(WIDTH, HEIGHT,BufferedImage.TYPE_3BYTE_BGR);;
Rectangle rect = new Rectangle(20, 40, 15 * 50, 15 * 35);
Snake snake;
Node node;
public InterFace() {
//创建"蛇"对象
snake = new Snake(this);
//创建"食物"对象
createNode();
this.setBounds(100, 100, WIDTH, HEIGHT);
//添加键盘监听器
this.addKeyListener(new KeyAdapter() {
public void keyPressed(KeyEvent arg0) {
System.out.println(arg0.getKeyCode());
switch (arg0.getKeyCode()) {
//映射上下左右4个键位
case KeyEvent.VK_LEFT:
snake.dir = L;
break;
case KeyEvent.VK_RIGHT:
snake.dir = R;
break;
case KeyEvent.VK_UP:
snake.dir = U;
break;
case KeyEvent.VK_DOWN:
snake.dir = D;
}
}
});
this.setTitle("贪吃蛇 0.1 By ： Easy");
this.setDefaultCloseOperation(EXIT_ON_CLOSE);
this.setVisible(true);
//启动线程,开始执行
new Thread(new ThreadUpadte()).start();
}
public void paint(Graphics g) {
Graphics2D g2d = (Graphics2D) offersetImage.getGraphics();
g2d.setColor(Color.white);
g2d.fillRect(0, 0, WIDTH, HEIGHT);
g2d.setColor(Color.black);
g2d.drawRect(rect.x, rect.y, rect.width, rect.height);
//如果蛇碰撞(吃)到食物，则创建新食物
if (snake.hit(node)) {
createNode();
}
snake.draw(g2d);
node.draw(g2d);
g.drawImage(offersetImage, 0, 0, null);
}
class ThreadUpadte implements Runnable {
public void run() {
//无限重绘画面
while (true) {
try {
Thread.sleep(SLEEPTIME);
repaint(); //
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}
/**
* 创建食物
*/
public void createNode() {
//随机食物的出现位置
int x = (int) (Math.random() * 650) + 50,y = (int) (Math.random() * 500) + 50;
Color color = Color.blue;
node = new Node(x, y, color);
}
public static void main(String args[]) {
new InterFace();
}
}
/**
* 节点类(包括食物和蛇的身躯组成节点)
*/
class Node {
int x, y, width = 15, height = 15;
Color color;
public Node(int x, int y, Color color) {
this(x, y);
this.color = color;
}
public Node(int x, int y) {
this.x = x;
this.y = y;
this.color = color.black;
}
public void draw(Graphics2D g2d) {
g2d.setColor(color);
g2d.drawRect(x, y, width, height);
}
public Rectangle getRect() {
return new Rectangle(x, y, width, height);
}
}
/**
* 蛇
*/
class Snake {
public ListNode nodes = new ArrayListNode();
InterFace interFace;
int dir=InterFace.R;
public Snake(InterFace interFace) {
this.interFace = interFace;
nodes.add(new Node(20 + 150, 40 + 150));
addNode();
}
/**
* 是否碰撞到食物
* @return true 是 false 否
*/
public boolean hit(Node node) {
//遍历整个蛇体是否与食物碰撞
for (int i = 0; i nodes.size(); i++) {
if (nodes.get(i).getRect().intersects(node.getRect())) {
addNode();
return true;
}
}
return false;
}
public void draw(Graphics2D g2d) {
for (int i = 0; i nodes.size(); i++) {
nodes.get(i).draw(g2d);
}
move();
}
public void move() {
nodes.remove((nodes.size() - 1));
addNode();
}
public synchronized void addNode() {
Node nodeTempNode = nodes.get(0);
//如果方向
switch (dir) {
case InterFace.L:
//判断是否会撞墙
if (nodeTempNode.x = 20) {
nodeTempNode = new Node(20 + 15 * 50, nodeTempNode.y);
}
nodes.add(0, new Node(nodeTempNode.x - nodeTempNode.width,
nodeTempNode.y));
break;
case InterFace.R:
//判断是否会撞墙
if (nodeTempNode.x = 20 + 15 * 50 - nodeTempNode.width) {
nodeTempNode = new Node(20 - nodeTempNode.width, nodeTempNode.y);
}
nodes.add(0, new Node(nodeTempNode.x + nodeTempNode.width,
nodeTempNode.y));
break;
case InterFace.U:
//判断是否会撞墙
if (nodeTempNode.y = 40) {
nodeTempNode = new Node(nodeTempNode.x, 40 + 15 * 35);
}
nodes.add(0, new Node(nodeTempNode.x, nodeTempNode.y - nodeTempNode.height));
break;
case InterFace.D:
//判断是否会撞墙
if (nodeTempNode.y = 40 + 15 * 35 - nodeTempNode.height) {
nodeTempNode = new Node(nodeTempNode.x,40 - nodeTempNode.height);
}
nodes.add(0, new Node(nodeTempNode.x, nodeTempNode.y + nodeTempNode.height));
break;
}
}
}
public
class
Snake
implements
Data//蛇类实现了data接口
{
public
Snake()
{
array.add(new
Point(10,
10));//
array.add(new
Point(10,
11));//
array.add(new
Point(10,
12));//
array.add(new
Point(10,
13));//
array.add(new
Point(10,
14));//这五句话是构造一个蛇，这条蛇由五个坐标点连成
currentFlag
=UPFLAG
;//当前的运动方向设为向上
lifeFlag
=
true;//当前蛇的生命设为活着
}
public
void
move()//蛇的运动函数
{
tair
=
(Point)array.get(array.size()
-
1);//得到蛇的尾巴
int
len
=
array.size()
-
2;
for(int
i
=
len;
i
=
0;
i--)//这个for循环把蛇的每一个点都坐标偏移即运动了
{
Point
leftPoint
=
(Point)array.get(i);
Point
rightPoint
=
(Point)array.get(i
+
1);
rightPoint.x
=
leftPoint.x;
rightPoint.y
=
leftPoint.y;//每一个右边的点等于其左边的点，像蛇那样的一缩一张的运动
}
}
public
void
moveHeadLeft()//把蛇的头部转向左边
{
if(currentFlag
==
RIGHTFLAG
||
currentFlag
==
LEFTFLAG)//如果运动方向设为向左或向右则不执行
{
return;
}
move();
Point
point
=
(Point)(array.get(0));
//得到蛇头部
point.x
=
point.x
-
1;//蛇头部横坐标减一，纵坐标不变
point.y
=
point.y;
if(point.x
LEFT)//如果蛇头部不能再左，就不执行
{
lifeFlag
=
false;
}
currentFlag
=
LEFTFLAG;//将蛇运动方向改为左
}
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