Java多线程实现方块赛跑小游戏

本文实例为大家分享了Java实现方块赛跑小游戏的具体代码,供大家参考,具体内容如下

在一个图形界面上构造两个位于同一起跑线方块,起跑线位于界面靠左位置, A 方块先开始运动,向右移动 50 像素后停止,B 方块开始运动,向右移动 100 像素后停 止,A 方块继续向右运动 100 像素后停止,B 方块开始运动,如此循环接替执行,直至 某一个方块到达终点,界面显示该方块胜利信息。 

1)  自定义一个threadA,ThreadB, ThreadFrame类(均继承自Thread)。

2)  定义全局变量,方块的位置,总长度,冠军,睡眠时间等,布尔值方块等待变量、游戏继续变量、绘图变量

3)  ThreadA(ThreadB):等待waitA(waitB)变量释放,即:等待另一个方块更新完位置;然后随机产生要移动的长度,检查运动后位置与总长度的关系,以此判断游戏是否结束。更新位置信息,更改绘图变量,通知绘图线程重绘。自锁本身,释放另一个方块线程。

4)  ThreadFrame:创建类对象,重写run函数,等待绘图变量的命令。接到绘图命令,重绘,判断游戏释放结束,重置绘图命令。

5)  构造函数,paint函数绘制,并进行游戏是否结束的判断,若结束,则打印冠军是谁,退出

6)  主函数,定义threadA,ThreadB, ThreadFrame类的对象,运行。用jion函数等待子线程的结束。

import java.awt.*;

import javax.swing.*;

public class four3 extends JFrame {

// 全局变量

static int positionA = 50, positionB = 50, distanceAll = 1600;

static int RecWidth = 50, RecHeight = 50;

static char winner;

static long sleeptime = 300;

static boolean waitA = true, waitB = true, gaming = true, unrepaint = true;

//构造函数

public four3() {

setTitle("多线程:方块赛跑");

setBackground(Color.WHITE);

setSize(1600, 500);

setLocation(0, 200);

setResizable(false);

setVisible(true);

setDefaultCloseOperation(EXIT_ON_CLOSE);

}

//绘图函数

public void paint(Graphics g) {

// TODO Auto-generated method stub

g.clearRect(0, 0, 1600, 900);

g.setColor(Color.RED);

g.fillRect(positionA - 50, 100, RecWidth, RecHeight);

g.setColor(Color.BLUE);

g.fillRect(positionB - 50, 300, RecWidth, RecHeight);

if (!gaming) {

g.setFont(new Font("宋体", ALLBITS, 50));

if (winner == 'A') {

g.setColor(Color.RED);

g.drawString(new String("Winner Is The Red One!"), 550, 250);

} else if (winner == 'B') {

g.setColor(Color.BLUE);

g.drawString(new String("Winner Is The Blue One!"), 550, 250);

}

}

}

public static void main(String[] args) {

waitA = false;

waitB = true;

unrepaint = false;

threadframe tf = new threadframe();

threadA tA = new threadA();

threadB tB = new threadB();

tf.start();

tA.start();

tB.start();

try {

tf.join();

tA.join();

tB.join();

} catch (Exception e) {

// TODO: handle exception

}

return;

}

//红色方块线程

public static class threadA extends Thread {

public void run() {

while (gaming) {

while (waitA) {

if (!gaming)return;

System.out.print("");

}

try {

sleep(sleeptime);

} catch (InterruptedException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

int distance = (int) (Math.random() * 100000) % 100;

positionA += distance;

if (positionA >= distanceAll) {

positionA = distanceAll;

unrepaint = false;

gaming = false;

winner = 'A';

}

unrepaint = false;

waitA = true;

waitB = false;

}

}

}

//蓝色方块线程

public static class threadB extends Thread {

public void run() {

while (gaming) {

while (waitB) {

if (!gaming)return;

System.out.print("");

}

try {

sleep(sleeptime);

} catch (InterruptedException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

int distance = (int) (Math.random() * 100000) % 100;

positionB += distance;

if (positionB >= distanceAll) {

positionB = distanceAll;

unrepaint = false;

gaming = false;

winner = 'B';

}

unrepaint = false;

waitB = true;

waitA = false;

}

}

}

//框架刷新线程

public static class threadframe extends Thread {

four3 jiemian = new four3();

public void run() {

while (gaming) {

while (unrepaint) {

if (!gaming)return;

System.out.print("");

}

jiemian.repaint();

unrepaint = true;

}

}

}

}

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