一些好玩的java代码 一些好玩的java代码

跪求JAVA编写的小游戏源代码

import java.awt.*;

import java.applet.*;

import java.awt.event.*;

import java.awt.image.*;

import java.awt.geom.*;

import java.util.*;

class Car{

Image img;

int x, y;

Dimension dim;

Car(Image img){

this.img=img;

}

Car(Image img, int x, int y){

this.img=img; this.x=x; this.y=y;

}

Car(Image img, int x, int y, Dimension dim){

this(img, x, y);

this.dim=dim;

}

void draw(Graphics g, ImageObserver observer){

g.drawImage(img, x, y, observer);

}

int getX(){ return x;}

int getY(){ return y;}

void setX(int x){this.x=x;}

void setY(int y){this.y=y;}

void setLocation(int x, int y){

this.x=x; this.y=y;

}

int getWidth(){ return img.getWidth(null);}

int getHeight(){ return img.getHeight(null);}

Rectangle2D getRectangle(){

return new Rectangle2D.Float(x, y, getWidth(), getHeight());

}

void move(int dx, int dy){

x+=dx;

y+=dy;

if(dim!=null){

if(x0)x=0;

if(x+getWidth()dim.getWidth())

x=(int)dim.getWidth()-getWidth();

}

}

boolean intersects(Car car){

return getRectangle().intersects(car.getRectangle());

}

boolean intersects(int x, int y){

return getRectangle().intersects(x, y, getWidth(), getHeight());

}

}

public class CarRace extends Applet implements KeyListener, Runnable{

Image buff;

Canvas screen;

Graphics2D gs, gb;

Car redCar;

Car[] enemy=new Car[20];

Button bStart;

Thread game;

boolean loop=true;

Dimension dim=new Dimension(200, 300);

int road;

Random rnd=new Random();

public void init(){

prepareResource();

setBackground(Color.blue);

initScreen();

add(screen);

bStart=new Button("霸烙 矫累");

add(bStart);

bStart.addActionListener(new ActionListener(){

public void actionPerformed(ActionEvent ae){

screen.requestFocus();

if(!game.isAlive())

game.start();

}

});

}

void prepareResource(){

Image imgRed=getImage(getCodeBase(),"images/red_car.gif");

Image imgBlue=getImage(getCodeBase(),"images/blue_car.gif");

Image imgGreen=getImage(getCodeBase(),"images/green_car.gif");

MediaTracker mt=new MediaTracker(this);

try{

mt.addImage(imgRed, 0);

mt.addImage(imgBlue, 1);

mt.addImage(imgGreen, 2);

mt.waitForAll();

}catch(Exception e){}

buff=createImage((int)dim.getWidth(), (int)dim.getHeight());

gb=(Graphics2D)buff.getGraphics();

redCar=new Car(imgRed, 80,250, dim);

for(int i=0;i10;i++){

enemy[i]=new Car(imgBlue, 0, 0);

}

for(int i=10;ienemy.length;i++){

enemy[i]=new Car(imgGreen, 0, 0);

}

for(int i=0;ienemy.length;i++){

setEnemy(i);

}

game=new Thread(this);

}

public void stop(){

loop=false;

}

public void run(){

while(loop){

drawScreen();

try{ Thread.sleep(50);}catch(Exception e){}

}

}

void initScreen(){

screen=new Canvas(){

public void paint(Graphics g){

if(gs==null){

gs=(Graphics2D)screen.getGraphics();

}

drawScreen();

}

};

screen.setSize(dim);

screen.addKeyListener(this);

}

void setEnemy(int en){

int x, y;

next:while(true){

x=rnd.nextInt((int)dim.getWidth()-enemy[en].getWidth());

y=-rnd.nextInt(5000)-200;

for(int j=0;jenemy.length;j++){

if(j!=en enemy[j].intersects(x, y))continue next;

}

enemy[en].setLocation(x, y);

break;

}

}

void check(Car en){

if(redCar.intersects(en)){

if(redCar.getX()en.getX()){

en.move(-20, 0);

redCar.move(20, 0);

}

else{

en.move(20,0);

redCar.move(-20, 0);

}

}

}

synchronized void drawScreen(){

gb.clearRect(0, 0, (int)dim.getWidth(), (int)dim.getHeight());

gb.setPaint(new Color(100, 100, 100));

gb.fillRect(0, 0, (int)dim.getWidth(), (int)dim.getHeight());

drawRoad();

for(int i=0;ienemy.length;i++){

enemy[i].move(0, 15);

enemy[i].draw(gb, screen);

if(enemy[i].getY()dim.getHeight())

setEnemy(i);

check(enemy[i]);

}

redCar.draw(gb, screen);

gs.drawImage(buff, 0,0, screen);

}

void drawRoad(){

road+=80;

gb.setPaint(Color.yellow);

gb.fillRect((int)dim.getWidth()/2, road,10,150);

if(road=dim.getHeight())road=-150;

}

public void keyPressed(KeyEvent ke){

if(ke.getKeyCode()==KeyEvent.VK_LEFT){

redCar.move(-10,0);

}

else if(ke.getKeyCode()==KeyEvent.VK_RIGHT){

redCar.move(10,0);

}

}

public void keyReleased(KeyEvent ke){}

public void keyTyped(KeyEvent ke){}

}

这个是一个典型的Applet,文件名应该是CarRace.java,需要图片作为车子等等,本人也是别人给的,但是还要个.html文件来运行它,代码为:

Applet code="CarRace.class" width=250 height=350

/Applet

请楼主采纳

相关问答

Q1: 一段最简单的java代码程序有哪些？

public class HelloWorld{

public static void main(String[] args){

System.out.println("hello world!");

}

}

一. 基本概念

Java是一种可以撰写跨平台应用软件的面向对象的程序设计语言。Java 技术具有卓越的通用性、高效性、平台移植性和安全性一些好玩的java代码，广泛应用于PC、数据中心、游戏控制台、科学超级计算机、移动电话和互联网一些好玩的java代码，同时拥有全球最大的开发者专业社群。

二. 体系

Java分为三个体系一些好玩的java代码，分别为Java SE（J2SE一些好玩的java代码，Java2 Platform Standard Edition一些好玩的java代码，标准版），

JavaEE（J2EE，Java 2 Platform, Enterprise Edition，企业版）。

Java ME（J2ME，Java 2 Platform Micro Edition，微型版）。

Q2: 求一Java代码，要简单的。大概一百多行的的。

题目：一球从100米高度自由落下，每次落地后反跳回原高度的一半；再落下，求它在 第10次落地时，共经过多少米？第10次反弹多高？

这个题目，下面我会贴出来两种代码。其实这个题目，我烦了简单计算，想搞得有趣味性一点，结果耽误了好几天时间，最后发现搞的也不好。

先第一种，为了解题而解题。

==== Main.java ====

public class Main {

private double TotalHeight = 100;

private double CurHeight = 50;

public void drop(int times) {

if ((times - 1) == 0) {

return;

}

setTotalHeight(getTotalHeight() + 2 * getCurHeight());

setCurHeight(getCurHeight() / 2);

drop(times - 1);

}

public double getTotalHeight() {

return TotalHeight;

}

public void setTotalHeight(double totalHeight) {

TotalHeight = totalHeight;

}

public double getCurHeight() {

return CurHeight;

}

public void setCurHeight(double curHeight) {

CurHeight = curHeight;

}

public static void main(String[] args) {

Main main = new Main();

main.drop(2);

System.out.println("Total height is " +

main.getTotalHeight());

System.out.println("Current height is " +

main.getCurHeight());

}

}

==== 然后是第二种 =====

==== Main.java ====

package main;

import javax.swing.JFrame;

import panel.BallPanel;

import time.Delay;

public class MainFrame extends JFrame {

public MainFrame(String title) {

super(title);

}

public static void main(String[] args) {

Delay delay = new Delay();

MainFrame frame = new MainFrame("Hello JFrame");

BallPanel ballPanel = new BallPanel();

frame.add(ballPanel);

frame.setSize(500, 500);

frame.setVisible(true);

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

delay.initDelay();

ballPanel.setDelay(delay.getDelay());

ballPanel.loopDrop(0);

}

}

==== Delay.java ====

package time;

public class Delay {

public void initDelay() {

int g = 10;

int i = 0;

double s, t, t0 = 0.0;

delay = new int[100];

for (s = 100; s 10100; s += 100) {

t = Math.sqrt(2 * s / g);

delay[i++] = (int) ((t - t0) * 100);

t0 = t;

}

}

public int[] getDelay() {

return delay;

}

private int delay[];

}

==== BallPanel.java ====

package panel;

import java.awt.Color;

import java.awt.Graphics;

import javax.swing.JPanel;

public class BallPanel extends JPanel {

public BallPanel() {

super();

}

public void paint(Graphics g) {

g.clearRect(0, 0, this.getWidth(), this.getHeight());

g.setColor(Color.BLUE);

g.fillOval(250, ballCenter, 30, 30);

}

public void loopDrop(int height) {

int i;

if (this.height == height) { // At bottom

for (i = 0; i targetHeight; i += MUL) {

ballCenter = this.height - i;

this.repaint();

try {

Thread.sleep(delay[(targetHeight - i - 1) / MUL]);

} catch (InterruptedException e) {

e.printStackTrace();

}

}

loopDrop(this.height - i);

} else { // At top

for (i = height; i this.height; i += MUL) {

ballCenter = i;

this.repaint();

try {

Thread.sleep(delay[(i - height) / MUL]);

} catch (InterruptedException e) {

e.printStackTrace();

}

}

targetHeightV = targetHeightV / 2;

targetHeight = targetHeightV;

if (targetHeight != 0) {

loopDrop(i);

}

}

}

public void setDelay(int delay[]) {

this.delay = delay;

}

private int extracted() {

return 100 * MUL;

}

private int targetHeight = extracted();

private int targetHeightV = extracted();

private int ballCenter = 0;

private int height = extracted();

private int delay[];

private final int MUL = 4;

}

其实所谓的第二种，是用的JFrame在JPanel上画图，直观的展示出来每次弹起来的效果。因为100像素实在太小了，所以我做了一个变量MUL，相

当于是等比例扩大的效果。问题就是弹不到10次距离就用光了，所以。。。。。权当娱乐了。。当然可以等比例在放大，例如100M看成是10000像素，这

样能多弹几次。这个程序，最后球就在那里不动了，程序不会自己退出。

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