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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时间： -07-20
