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java貪吃蛇代碼注釋求解
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:寬
* HEIGHT:高
* SLEEPTIME:可以看作蛇運動的速度
* L = 1,R = 2, U = 3, D = 4 左右上下代碼
*/
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() {
//創建”蛇”對象
snake = new Snake(this);
//創建”食物”對象
createNode();
this.setBounds(100, 100, WIDTH, HEIGHT);
//添加鍵盤監聽器
this.addKeyListener(new KeyAdapter() {
public void keyPressed(KeyEvent arg0) {
System.out.println(arg0.getKeyCode());
switch (arg0.getKeyCode()) {
//映射上下左右4個鍵位
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(“貪吃蛇 0.1 By ： Easy”);
this.setDefaultCloseOperation(EXIT_ON_CLOSE);
this.setVisible(true);
//啟動線程,開始執行
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，則創建新食物
if (snake.hit(node)) {
createNode();
}
snake.draw(g2d);
node.draw(g2d);
g.drawImage(offersetImage, 0, 0, null);
}
class ThreadUpadte implements Runnable {
public void run() {
//無限重繪畫面
while (true) {
try {
Thread.sleep(SLEEPTIME);
repaint(); //
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}
/**
* 創建食物
*/
public void createNode() {
//隨機食物的出現位置
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();
}
}
/**
* 節點類(包括食物和蛇的身軀組成節點)
*/
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) {
//遍歷整個蛇體是否與食物碰撞
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:
//判斷是否會撞牆
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:
//判斷是否會撞牆
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:
//判斷是否會撞牆
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:
//判斷是否會撞牆
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;
}
}
}
貪吃蛇 java代碼
自己寫着玩的,很簡單,你試一試哦…
主要用了javax.swing.Timer這個類:
import java.awt.*;
import javax.swing.*;
@SuppressWarnings(“serial”)
public class MainClass extends JFrame {
ControlSnake control;
Toolkit kit;
Dimension dimen;
public static void main(String[] args) {
new MainClass(“my snake”);
}
public MainClass(String s) {
super(s);
control = new ControlSnake();
control.setFocusable(true);
kit = Toolkit.getDefaultToolkit();
dimen = kit.getScreenSize();
add(control);
setLayout(new BorderLayout());
setLocation(dimen.width / 3, dimen.height / 3);// dimen.width/3,dimen.height/3
setSize(FWIDTH, FHEIGHT);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setResizable(false);
setVisible(true);
}
public static final int FWIDTH = 315;
public static final int FHEIGHT = 380;
}
import java.util.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.Timer;
import java.util.Random;
@SuppressWarnings(“serial”)
public class ControlSnake extends JPanel implements ActionListener {
Random rand;
ArrayListPoint list, listBody;
String str, str1;
static boolean key;
int x, y, dx, dy, fx, fy, flag;
int snakeBody;
int speed;
public ControlSnake() {
snakeBody = 1;
str = “上下左右方向鍵控制 P鍵暫停…”;
str1 = “現在的長度為:” + snakeBody;
key = true;
flag = 1;
speed = 700;
rand = new Random();
list = new ArrayListPoint();
listBody = new ArrayListPoint();
x = 5;
y = 5;
list.add(new Point(x, y));
listBody.add(list.get(0));
dx = 10;
dy = 0;
fx = rand.nextInt(30) * 10 + 5;// 2
fy = rand.nextInt(30) * 10 + 5;// 2
setBackground(Color.WHITE);
setSize(new Dimension(318, 380));
final Timer time = new Timer(speed, this);
time.start();
addKeyListener(new KeyAdapter() {
public void keyPressed(KeyEvent e) {
if (e.getKeyCode() == 37) {
dx = -10;
dy = 0;
} else if (e.getKeyCode() == 38) {
dx = 0;
dy = -10;
} else if (e.getKeyCode() == 39) {
dx = 10;
dy = 0;
} else if (e.getKeyCode() == 40) {
dx = 0;
dy = 10;
} else if (e.getKeyCode() == 80) {
if (flag % 2 == 1) {
time.stop();
}
if (flag % 2 == 0) {
time.start();
}
flag++;
}
}
});
}
public void paint(Graphics g) {
g.setColor(Color.WHITE);
g.fillRect(0, 0, 400, 400);
g.setColor(Color.DARK_GRAY);
g.drawLine(3, 3, 305, 3);
g.drawLine(3, 3, 3, 305);
g.drawLine(305, 3, 305, 305);
g.drawLine(3, 305, 305, 305);
g.setColor(Color.PINK);
for (int i = 0; i listBody.size(); i++) {
g.fillRect(listBody.get(i).x, listBody.get(i).y, 9, 9);
}
g.fillRect(x, y, 9, 9);
g.setColor(Color.ORANGE);
g.fillRect(fx, fy, 9, 9);
g.setColor(Color.DARK_GRAY);
str1 = “現在的長度為:” + snakeBody;
g.drawString(str, 10, 320);
g.drawString(str1, 10, 335);
}
public void actionPerformed(ActionEvent e) {
x += dx;
y += dy;
if (makeOut() == false) {
JOptionPane.showMessageDialog(null, “重新開始……”);
speed = 700;
snakeBody = 1;
x = 5;
y = 5;
list.clear();
list.add(new Point(x, y));
listBody.clear();
listBody.add(list.get(0));
dx = 10;
dy = 0;
}
addPoint(x, y);
if (x == fx y == fy) {
speed = (int) (speed * 0.8);//速度增加參數
if (speed 200) {
speed = 100;
}
fx = rand.nextInt(30) * 10 + 5;// 2
fy = rand.nextInt(30) * 10 + 5;// 2
snakeBody++;// 2
} // 2
repaint();
}
public void addPoint(int xx, int yy) {
// 動態的記錄最新發生的50步以內的移動過的坐標
// 並畫出最新的snakeBody
if (list.size() 100) {//蛇身長度最長為100
list.add(new Point(xx, yy));
} else {
list.remove(0);
list.add(new Point(xx, yy));
}
if (snakeBody == 1) {
listBody.remove(0);
listBody.add(0, list.get(list.size() – 1));
} else {
listBody.clear();
if (list.size() snakeBody) {
for (int i = list.size() – 1; i 0; i–) {
listBody.add(list.get(i));
}
} else {
for (int i = list.size() – 1; listBody.size() snakeBody; i–) {
listBody.add(list.get(i));
}
}
}
}
public boolean makeOut() {
if ((x 3 || y 3) || (x 305 || y 305)) {
return false;
}
for (int i = 0; i listBody.size() – 1; i++) {
for (int j = i + 1; j listBody.size(); j++) {
if (listBody.get(i).equals(listBody.get(j))) {
return false;
}
}
}
return true;
}
}
求java貪吃蛇的編程，並有注釋
J2ME貪吃蛇源代碼——200行左右，包含詳細注釋 package snake;import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;public class SnakeMIDlet extends MIDlet {
SnakeCanvas displayable = new SnakeCanvas();
public SnakeMIDlet() {
Display.getDisplay(this).setCurrent(displayable);
}public void startApp() {}public void pauseApp() {}public void destroyApp(boolean unconditional) {}}//文件名：SnakeCanvas.javapackage snake;import java.util.*;
import javax.microedition.lcdui.*;/**
* 貪吃蛇遊戲
*/
public class SnakeCanvas extends Canvas implements Runnable{
/**存儲貪吃蛇節點坐標,其中第二維下標為0的代表x坐標，第二維下標是1的代表y坐標*/
int[][] snake = new int[200][2];
/**已經使用的節點數量*/
int snakeNum;
/**貪吃蛇運動方向,0代表向上，1代表向下,2代表向左,3代表向右*/
int direction;
/*移動方向*/
/**向上*/
private final int DIRECTION_UP = 0;
/**向下*/
private final int DIRECTION_DOWN = 1;
/**向左*/
private final int DIRECTION_LEFT = 2;
/**向右*/
private final int DIRECTION_RIGHT = 3;/**遊戲區域寬度*/
int width;
/**遊戲區域高度*/
int height;/**蛇身單元寬度*/
private final byte SNAKEWIDTH = 4;/**是否處於暫停狀態,true代表暫停*/
boolean isPaused = false;
/**是否處於運行狀態,true代表運行*/
boolean isRun = true;/**時間間隔*/
private final int SLEEP_TIME = 300;
/**食物的X坐標*/
int foodX;
/**食物的Y坐標*/
int foodY;
/**食物的閃爍控制*/
boolean b = true;
/**Random對象*/
Random random = new Random();
public SnakeCanvas() {
//初始化
init();
width = this.getWidth();
height = this.getHeight();
//啟動線程
new Thread(this).start();
}/**
* 初始化開始數據
*/
private void init(){
//初始化節點數量
snakeNum = 7;
//初始化節點數據
for(int i = 0;i snakeNum;i++){
snake[i][0] = 100 – SNAKEWIDTH * i;
snake[i][1] = 40;
}
//初始化移動方向
direction = DIRECTION_RIGHT;
//初始化食物坐標
foodX = 100;
foodY = 100;
}protected void paint(Graphics g) {
//清屏
g.setColor(0xffffff);
g.fillRect(0,0,width,height);
g.setColor(0);//繪製蛇身
for(int i = 0;i snakeNum;i++){
g.fillRect(snake[i][0],snake[i][1],SNAKEWIDTH,SNAKEWIDTH);
}
//繪製食物
if(b){
g.fillRect(foodX,foodY,SNAKEWIDTH,SNAKEWIDTH);
}
}private void move(int direction){
//蛇身移動
for(int i = snakeNum – 1;i 0;i–){
snake[i][0] = snake[i – 1][0];
snake[i][1] = snake[i – 1][1];
}//第一個單元格移動
switch(direction){
case DIRECTION_UP:
snake[0][1] = snake[0][1] – SNAKEWIDTH;
break;
case DIRECTION_DOWN:
snake[0][1] = snake[0][1] + SNAKEWIDTH;
break;
case DIRECTION_LEFT:
snake[0][0] = snake[0][0] – SNAKEWIDTH;
break;
case DIRECTION_RIGHT:
snake[0][0] = snake[0][0] + SNAKEWIDTH;
break;
}
}
/**
* 吃掉食物，自身增長
*/
private void eatFood(){
//判別蛇頭是否和食物重疊
if(snake[0][0] == foodX snake[0][1] == foodY){
snakeNum++;
generateFood();
}
}
/**
* 產生食物
* 說明：食物的坐標必須位於屏幕內，且不能和蛇身重合
*/
private void generateFood(){
while(true){
foodX = Math.abs(random.nextInt() % (width – SNAKEWIDTH + 1))
/ SNAKEWIDTH * SNAKEWIDTH;
foodY = Math.abs(random.nextInt() % (height – SNAKEWIDTH + 1))
/ SNAKEWIDTH * SNAKEWIDTH;
boolean b = true;
for(int i = 0;i snakeNum;i++){
if(foodX == snake[i][0] snake[i][1] == foodY){
b = false;
break;
}
}
if(b){
break;
}
}
}
/**
* 判斷遊戲是否結束
* 結束條件：
* 1、蛇頭超出邊界
* 2、蛇頭碰到自身
*/
private boolean isGameOver(){
//邊界判別
if(snake[0][0] 0 || snake[0][0] (width – SNAKEWIDTH) ||
snake[0][1] 0 || snake[0][1] (height – SNAKEWIDTH)){
return true;
}
//碰到自身
for(int i = 4;i snakeNum;i++){
if(snake[0][0] == snake[i][0]
snake[0][1] == snake[i][1]){
return true;
}
}
return false;
}/**
* 事件處理
*/
public void keyPressed(int keyCode){
int action = this.getGameAction(keyCode);
//改變方向
switch(action){
case UP:
if(direction != DIRECTION_DOWN){
direction = DIRECTION_UP;
}
break;
case DOWN:
if(direction != DIRECTION_UP){
direction = DIRECTION_DOWN;
}
break;
case LEFT:
if(direction != DIRECTION_RIGHT){
direction = DIRECTION_LEFT;
}
break;
case RIGHT:
if(direction != DIRECTION_LEFT){
direction = DIRECTION_RIGHT;
}
break;
case FIRE:
//暫停和繼續
isPaused = !isPaused;
break;
}
}/**
* 線程方法
* 使用精確延時
*/
public void run(){
try{
while (isRun) {
//開始時間
long start = System.currentTimeMillis();
if(!isPaused){
//吃食物
eatFood();
//移動
move(direction);
//結束遊戲
if(isGameOver()){
break;
}
//控制閃爍
b = !b;
}
//重新繪製
repaint();
long end = System.currentTimeMillis();
//延時
if(end – start SLEEP_TIME){
Thread.sleep(SLEEP_TIME – (end – start));
}
}
}catch(Exception e){}
}
}
求一段JAVA編寫的貪吃蛇小程序源代碼
用MVC方式實現的貪吃蛇遊戲，共有4個類。運行GreedSnake運行即可。主要是觀察者模式的使用，我已經添加了很多注釋了。
1、
/*
* 程序名稱：貪食蛇
* 原作者：BigF
* 修改者：algo
* 說明：我以前也用C寫過這個程序，現在看到BigF用Java寫的這個，發現雖然作者自稱是Java的初學者，
* 但是明顯編寫程序的素養不錯，程序結構寫得很清晰，有些細微得地方也寫得很簡潔，一時興起之
* 下，我認真解讀了這個程序，發現數據和表現分開得很好，而我近日正在學習MVC設計模式，
* 因此嘗試把程序得結構改了一下，用MVC模式來實現，對源程序得改動不多。
* 我同時也為程序增加了一些自己理解得注釋，希望對大家閱讀有幫助。
*/
package mvcTest;
/**
* @author WangYu
* @version 1.0
* Description:
* /pre
* Create on :Date :2005-6-13 Time:15:57:16
* LastModified:
* History:
*/
public class GreedSnake {
public static void main(String[] args) {
SnakeModel model = new SnakeModel(20,30);
SnakeControl control = new SnakeControl(model);
SnakeView view = new SnakeView(model,control);
//添加一個觀察者，讓view成為model的觀察者
model.addObserver(view);
(new Thread(model)).start();
}
}
————————————————————-
2、
package mvcTest;
//SnakeControl.java
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
/**
* MVC中的Controler，負責接收用戶的操作，並把用戶操作通知Model
*/
public class SnakeControl implements KeyListener{
SnakeModel model;
public SnakeControl(SnakeModel model){
this.model = model;
}
public void keyPressed(KeyEvent e) {
int keyCode = e.getKeyCode();
if (model.running){ // 運行狀態下，處理的按鍵
switch (keyCode) {
case KeyEvent.VK_UP:
model.changeDirection(SnakeModel.UP);
break;
case KeyEvent.VK_DOWN:
model.changeDirection(SnakeModel.DOWN);
break;
case KeyEvent.VK_LEFT:
model.changeDirection(SnakeModel.LEFT);
break;
case KeyEvent.VK_RIGHT:
model.changeDirection(SnakeModel.RIGHT);
break;
case KeyEvent.VK_ADD:
case KeyEvent.VK_PAGE_UP:
model.speedUp();
break;
case KeyEvent.VK_SUBTRACT:
case KeyEvent.VK_PAGE_DOWN:
model.speedDown();
break;
case KeyEvent.VK_SPACE:
case KeyEvent.VK_P:
model.changePauseState();
break;
default:
}
}
// 任何情況下處理的按鍵，按鍵導致重新啟動遊戲
if (keyCode == KeyEvent.VK_R ||
keyCode == KeyEvent.VK_S ||
keyCode == KeyEvent.VK_ENTER) {
model.reset();
}
}
public void keyReleased(KeyEvent e) {
}
public void keyTyped(KeyEvent e) {
}
}
————————————————————-
3、
/*
*
*/
package mvcTest;
/**
* 遊戲的Model類，負責所有遊戲相關數據及運行
* @author WangYu
* @version 1.0
* Description:
* /pre
* Create on :Date :2005-6-13 Time:15:58:33
* LastModified:
* History:
*/
//SnakeModel.java
import javax.swing.*;
import java.util.Arrays;
import java.util.LinkedList;
import java.util.Observable;
import java.util.Random;
/**
* 遊戲的Model類，負責所有遊戲相關數據及運行
*/
class SnakeModel extends Observable implements Runnable {
boolean[][] matrix; // 指示位置上有沒蛇體或食物
LinkedList nodeArray = new LinkedList(); // 蛇體
Node food;
int maxX;
int maxY;
int direction = 2; // 蛇運行的方向
boolean running = false; // 運行狀態
int timeInterval = 200; // 時間間隔，毫秒
double speedChangeRate = 0.75; // 每次得速度變化率
boolean paused = false; // 暫停標誌
int score = 0; // 得分
int countMove = 0; // 吃到食物前移動的次數
// UP and DOWN should be even
// RIGHT and LEFT should be odd
public static final int UP = 2;
public static final int DOWN = 4;
public static final int LEFT = 1;
public static final int RIGHT = 3;
public SnakeModel( int maxX, int maxY) {
this.maxX = maxX;
this.maxY = maxY;
reset();
}
public void reset(){
direction = SnakeModel.UP; // 蛇運行的方向
timeInterval = 200; // 時間間隔，毫秒
paused = false; // 暫停標誌
score = 0; // 得分
countMove = 0; // 吃到食物前移動的次數
// initial matirx, 全部清0
matrix = new boolean[maxX][];
for (int i = 0; i maxX; ++i) {
matrix[i] = new boolean[maxY];
Arrays.fill(matrix[i], false);
}
// initial the snake
// 初始化蛇體，如果橫向位置超過20個，長度為10，否則為橫向位置的一半
int initArrayLength = maxX 20 ? 10 : maxX / 2;
nodeArray.clear();
for (int i = 0; i initArrayLength; ++i) {
int x = maxX / 2 + i;//maxX被初始化為20
int y = maxY / 2; //maxY被初始化為30
//nodeArray[x,y]: [10,15]-[11,15]-[12，15]~~[20,15]
//默認的運行方向向上，所以遊戲一開始nodeArray就變為：
// [10，14]-[10，15]-[11，15]-[12，15]~~[19，15]
nodeArray.addLast(new Node(x, y));
matrix[x][y] = true;
}
// 創建食物
food = createFood();
matrix[food.x][food.y] = true;
}
public void changeDirection(int newDirection) {
// 改變的方向不能與原來方向同向或反向
if (direction % 2 != newDirection % 2) {
direction = newDirection;
}
}
/**
* 運行一次
* @return
*/
public boolean moveOn() {
Node n = (Node) nodeArray.getFirst();
int x = n.x;
int y = n.y;
// 根據方向增減坐標值
switch (direction) {
case UP:
y–;
break;
case DOWN:
y++;
break;
case LEFT:
x–;
break;
case RIGHT:
x++;
break;
}
// 如果新坐標落在有效範圍內，則進行處理
if ((0 = x x maxX) (0 = y y maxY)) {
if (matrix[x][y]) { // 如果新坐標的點上有東西（蛇體或者食物）
if (x == food.x y == food.y) { // 吃到食物，成功
nodeArray.addFirst(food); // 從蛇頭贈長
// 分數規則，與移動改變方向的次數和速度兩個元素有關
int scoreGet = (10000 – 200 * countMove) / timeInterval;
score += scoreGet 0 ? scoreGet : 10;
countMove = 0;
food = createFood(); // 創建新的食物
matrix[food.x][food.y] = true; // 設置食物所在位置
return true;
} else // 吃到蛇體自身，失敗
return false;
} else { // 如果新坐標的點上沒有東西（蛇體），移動蛇體
nodeArray.addFirst(new Node(x, y));
matrix[x][y] = true;
n = (Node) nodeArray.removeLast();
matrix[n.x][n.y] = false;
countMove++;
return true;
}
}
return false; // 觸到邊線，失敗
}
public void run() {
running = true;
while (running) {
try {
Thread.sleep(timeInterval);
} catch (Exception e) {
break;
}
if (!paused) {
if (moveOn()) {
setChanged(); // Model通知View數據已經更新
notifyObservers();
} else {
JOptionPane.showMessageDialog(null,
“you failed”,
“Game Over”,
JOptionPane.INFORMATION_MESSAGE);
break;
}
}
}
running = false;
}
private Node createFood() {
int x = 0;
int y = 0;
// 隨機獲取一個有效區域內的與蛇體和食物不重疊的位置
do {
Random r = new Random();
x = r.nextInt(maxX);
y = r.nextInt(maxY);
} while (matrix[x][y]);
return new Node(x, y);
}
public void speedUp() {
timeInterval *= speedChangeRate;
}
public void speedDown() {
timeInterval /= speedChangeRate;
}
public void changePauseState() {
paused = !paused;
}
public String toString() {
String result = “”;
for (int i = 0; i nodeArray.size(); ++i) {
Node n = (Node) nodeArray.get(i);
result += “[” + n.x + “,” + n.y + “]”;
}
return result;
}
}
class Node {
int x;
int y;
Node(int x, int y) {
this.x = x;
this.y = y;
}
}
————————————————————
4、
package mvcTest;
//SnakeView.java
import javax.swing.*;
import java.awt.*;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.Observable;
import java.util.Observer;
/**
* MVC模式中得Viewer，只負責對數據的顯示,而不用理會遊戲的控制邏輯
*/
public class SnakeView implements Observer {
SnakeControl control = null;
SnakeModel model = null;
JFrame mainFrame;
Canvas paintCanvas;
JLabel labelScore;
public static final int canvasWidth = 200;
public static final int canvasHeight = 300;
public static final int nodeWidth = 10;
public static final int nodeHeight = 10;
public SnakeView(SnakeModel model, SnakeControl control) {
this.model = model;
this.control = control;
mainFrame = new JFrame(“GreedSnake”);
Container cp = mainFrame.getContentPane();
// 創建頂部的分數顯示
labelScore = new JLabel(“Score:”);
cp.add(labelScore, BorderLayout.NORTH);
// 創建中間的遊戲顯示區域
paintCanvas = new Canvas();
paintCanvas.setSize(canvasWidth + 1, canvasHeight + 1);
paintCanvas.addKeyListener(control);
cp.add(paintCanvas, BorderLayout.CENTER);
// 創建底下的幫助欄
JPanel panelButtom = new JPanel();
panelButtom.setLayout(new BorderLayout());
JLabel labelHelp;
labelHelp = new JLabel(“PageUp, PageDown for speed;”, JLabel.CENTER);
panelButtom.add(labelHelp, BorderLayout.NORTH);
labelHelp = new JLabel(“ENTER or R or S for start;”, JLabel.CENTER);
panelButtom.add(labelHelp, BorderLayout.CENTER);
labelHelp = new JLabel(“SPACE or P for pause”, JLabel.CENTER);
panelButtom.add(labelHelp, BorderLayout.SOUTH);
cp.add(panelButtom, BorderLayout.SOUTH);
mainFrame.addKeyListener(control);
mainFrame.pack();
mainFrame.setResizable(false);
mainFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
mainFrame.setVisible(true);
}
void repaint() {
Graphics g = paintCanvas.getGraphics();
//draw background
g.setColor(Color.WHITE);
g.fillRect(0, 0, canvasWidth, canvasHeight);
// draw the snake
g.setColor(Color.BLACK);
LinkedList na = model.nodeArray;
Iterator it = na.iterator();
while (it.hasNext()) {
Node n = (Node) it.next();
drawNode(g, n);
}
// draw the food
g.setColor(Color.RED);
Node n = model.food;
drawNode(g, n);
updateScore();
}
private void drawNode(Graphics g, Node n) {
g.fillRect(n.x * nodeWidth,
n.y * nodeHeight,
nodeWidth – 1,
nodeHeight – 1);
}
public void updateScore() {
String s = “Score: ” + model.score;
labelScore.setText(s);
}
public void update(Observable o, Object arg) {
repaint();
}
}
希望採納
想要一個在eclipse上直接運行的貪吃蛇代碼
第一個類：
/**
* 代表蛇的運行方向
* @author Administrator
*
*/
public enum Dir {
L, U, R, D
}
第二個類：
import java.awt.Color;
import java.awt.Graphics;
import java.awt.Rectangle;
import java.util.Random;
/**
* 代表蛋
* @author Administrator
*
*/
public class Egg {
int row, col;
int w = Yard.BLOCK_SIZE;
int h = Yard.BLOCK_SIZE;
private static Random r = new Random();
private Color color = Color.GREEN;
public Egg(int row, int col) {
this.row = row;
this.col = col;
}
public Egg() {
this(r.nextInt(Yard.ROWS-2) + 2, r.nextInt(Yard.COLS));
}
public void reAppear() {
this.row = r.nextInt(Yard.ROWS-2) + 2;
this.col = r.nextInt(Yard.COLS);
}
public Rectangle getRect() {
return new Rectangle(Yard.BLOCK_SIZE * col, Yard.BLOCK_SIZE * row, w, h);
}
public void draw(Graphics g) {
Color c = g.getColor();
g.setColor(color);
g.fillOval(Yard.BLOCK_SIZE * col, Yard.BLOCK_SIZE * row, w, h);
g.setColor(c);
if(color == Color.GREEN) color = Color.RED;
else color = Color.GREEN;
}
public int getCol() {
return col;
}
public void setCol(int col) {
this.col = col;
}
public int getRow() {
return row;
}
public void setRow(int row) {
this.row = row;
}
}
第三個類：
import java.awt.Color;
import java.awt.Graphics;
import java.awt.Rectangle;
import java.awt.event.KeyEvent;
/**
* 代表蛇
* @author Administrator
*
*/
public class Snake {
private Node head = null;
private Node tail = null;
private int size = 0;
private Node n = new Node(20, 30, Dir.L);
private Yard y;
public Snake(Yard y) {
head = n;
tail = n;
size = 1;
this.y = y;
}
public void addToTail() {
Node node = null;
switch(tail.dir) {
case L :
node = new Node(tail.row, tail.col + 1, tail.dir);
break;
case U :
node = new Node(tail.row + 1, tail.col, tail.dir);
break;
case R :
node = new Node(tail.row, tail.col – 1, tail.dir);
break;
case D :
node = new Node(tail.row – 1, tail.col, tail.dir);
break;
}
tail.next = node;
node.prev = tail;
tail = node;
size ++;
}
public void addToHead() {
Node node = null;
switch(head.dir) {
case L :
node = new Node(head.row, head.col – 1, head.dir);
break;
case U :
node = new Node(head.row – 1, head.col, head.dir);
break;
case R :
node = new Node(head.row, head.col + 1, head.dir);
break;
case D :
node = new Node(head.row + 1, head.col, head.dir);
break;
}
node.next = head;
head.prev = node;
head = node;
size ++;
}
public void draw(Graphics g) {
if(size = 0) return;
move();
for(Node n = head; n != null; n = n.next) {
n.draw(g);
}
}
private void move() {
addToHead();
deleteFromTail();
checkDead();
}
private void checkDead() {
if(head.row 2 || head.col 0 || head.row Yard.ROWS || head.col Yard.COLS) {
y.stop();
}
for(Node n = head.next; n != null; n = n.next) {
if(head.row == n.row head.col == n.col) {
y.stop();
}
}
}
private void deleteFromTail() {
if(size == 0) return;
tail = tail.prev;
tail.next = null;
}
private class Node {
int w = Yard.BLOCK_SIZE;
int h = Yard.BLOCK_SIZE;
int row , col;
Dir dir = Dir.L;
Node next = null;
Node prev = null;
Node(int row, int col, Dir dir) {
this.row = row;
this.col = col;
this.dir = dir;
}
void draw(Graphics g) {
Color c = g.getColor();
g.setColor(Color.BLACK);
g.fillRect(Yard.BLOCK_SIZE * col, Yard.BLOCK_SIZE * row, w, h);
g.setColor(c);
}
}
public void eat(Egg e) {
if(this.getRect().intersects(e.getRect())) {
e.reAppear();
this.addToHead();
y.setScore(y.getScore() + 5);
}
}
private Rectangle getRect() {
return new Rectangle(Yard.BLOCK_SIZE * head.col, Yard.BLOCK_SIZE * head.row, head.w, head.h);
}
public void keyPressed(KeyEvent e) {
int key = e.getKeyCode();
switch(key) {
case KeyEvent.VK_LEFT :
if(head.dir != Dir.R)
head.dir = Dir.L;
break;
case KeyEvent.VK_UP :
if(head.dir != Dir.D)
head.dir = Dir.U;
break;
case KeyEvent.VK_RIGHT :
if(head.dir != Dir.L)
head.dir = Dir.R;
break;
case KeyEvent.VK_DOWN :
if(head.dir != Dir.U)
head.dir = Dir.D;
break;
}
}
}
第四個類：
import java.awt.Color;
import java.awt.Font;
import java.awt.Frame;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
/**
* 這個類代表貪吃蛇的活動場所
* @author bjsxt
* @version 1.0
*/
public class Yard extends Frame {
PaintThread paintThread = new PaintThread();
private boolean gameOver = false; //遊戲是否結束
/**
* 行數
*/
public static final int ROWS = 30;
public static final int COLS = 30;
public static final int BLOCK_SIZE = 15;
private Font fontGameOver = new Font(“宋體”, Font.BOLD, 50);
private int score = 0;
Snake s = new Snake(this);
Egg e = new Egg();
Image offScreenImage = null;
public void launch() {
this.setLocation(200, 200);
this.setSize(COLS * BLOCK_SIZE, ROWS * BLOCK_SIZE);
this.addWindowListener(new WindowAdapter() {
@Override
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
this.setVisible(true);
this.addKeyListener(new KeyMonitor());
new Thread(paintThread).start();
}
public static void main(String[] args) {
new Yard().launch();
}
public void stop() {
gameOver = true;
}
@Override
public void paint(Graphics g) {
Color c = g.getColor();
g.setColor(Color.GRAY);
g.fillRect(0, 0, COLS * BLOCK_SIZE, ROWS * BLOCK_SIZE);
g.setColor(Color.DARK_GRAY);
//畫出橫線
for(int i=1; iROWS; i++) {
g.drawLine(0, BLOCK_SIZE * i, COLS * BLOCK_SIZE, BLOCK_SIZE * i);
}
for(int i=1; iCOLS; i++) {
g.drawLine(BLOCK_SIZE * i, 0, BLOCK_SIZE * i, BLOCK_SIZE * ROWS);
}
g.setColor(Color.YELLOW);
g.drawString(“score:” + score, 10, 60);
if(gameOver) {
g.setFont(fontGameOver);
g.drawString(“遊戲結束”, 120, 180);
paintThread.pause();
}
g.setColor(c);
s.eat(e);
e.draw(g);
s.draw(g);
}
@Override
public void update(Graphics g) {
if(offScreenImage == null) {
offScreenImage = this.createImage(COLS * BLOCK_SIZE, ROWS * BLOCK_SIZE);
}
Graphics gOff = offScreenImage.getGraphics();
paint(gOff);
g.drawImage(offScreenImage, 0, 0, null);
}
private class PaintThread implements Runnable {
private boolean running = true;
private boolean pause = false;
public void run() {
while(running) {
if(pause) continue;
else repaint();
try {
Thread.sleep(100);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
public void pause() {
this.pause = true;
}
public void reStart() {
this.pause = false;
s = new Snake(Yard.this);
gameOver = false;
}
public void gameOver() {
running = false;
}
}
private class KeyMonitor extends KeyAdapter {
@Override
public void keyPressed(KeyEvent e) {
int key = e.getKeyCode();
if(key == KeyEvent.VK_F2) {
paintThread.reStart();
}
s.keyPressed(e);
}
}
/**
* 拿到所得的分數
* @return 分數
*/
public int getScore() {
return score;
}
/**
* 設置所得的分數
* @param score 分數
*/
public void setScore(int score) {
this.score = score;
}
}
僅供參考。
原創文章，作者：TGTZ，如若轉載，請註明出處：https://www.506064.com/zh-hant/n/134474.html
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