GUI_台球游戏核心功能开发JAVA077-082

本文主要是介绍GUI_台球游戏核心功能开发JAVA077-082，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

来源：http://www.bjsxt.com/
1、S01E077_01游戏项目——加载窗口，画图形，加载图片，图片的移动
工程下的src下新建文件夹存放图片文件

package com.test.mygame;import java.awt.Color;
import java.awt.Font;
import java.awt.Frame;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;/*** 游戏窗口类*/
public class GameFrame extends Frame {  //GUI编程：AWT,SWING等Image img = GameUtil.getImage("images/无标题.jpg");int x = 100;int y = 100;/*** 加载窗口*/public void launchFrame() {setSize(500,500);//窗口大小setLocation(100,100);//窗口位置setVisible(true);//默认不可见new PaintThread().start();//启动重画线程addWindowListener(new WindowAdapter() {public void windowClosing(WindowEvent e) {//点击右上角"X"退出System.exit(0);}});}@Overridepublic void paint(Graphics g) { //回调函数，系统自动调用System.out.println("启动重画线程后，每一次重画，此句话被打印一次！");g.drawLine(100, 100, 200, 200);//画线g.drawRect(100, 100, 200, 200);//画矩形g.drawOval(100, 100, 200, 200);//画椭圆Font font = new Font("宋体", Font.BOLD, 10);g.setFont(font);g.drawString("大家好", 100, 100);//字符串Color c = g.getColor();//获取调用前的画笔颜色。修改画笔颜色，最后要设回去g.setColor(Color.red);g.fillOval(100, 100, 20, 20);g.setColor(c);g.drawImage(img, x, y, null);//图片移动x = x + 10;y = y + 10;}/*** 定义一个重画窗口的线程类*/class PaintThread extends Thread {@Overridepublic void run() {while(true) {repaint();try {Thread.sleep(40);} catch (InterruptedException e) {e.printStackTrace();}}}}public static void main(String[] args) {GameFrame gameFrame = new GameFrame();gameFrame.launchFrame();}
}

package com.test.mygame;import java.awt.Image;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.net.URL;
import javax.imageio.ImageIO;/*** 游戏开发中常用的工具类（比如：加载图片等方法）*/
public class GameUtil {private GameUtil() {}   //工具类通常会将构造方法私有，直接调用static方法public static Image getImage(String path) {URL url = GameUtil.class.getClassLoader().getResource(path);BufferedImage img = null;try {img = ImageIO.read(url);} catch (IOException e) {e.printStackTrace();}return img;}
}

2、S01E081_01台球游戏核心功能开发：物体沿任意角度移动和减速移动

package com.test.mygame;import java.awt.Frame;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;/*** 台球游戏核心功能开发：物体沿任意角度移动和减速移动*/
public class BilliardsGame extends Frame {  //GUI编程：AWT,SWING等private double x = 100,y = 100;private double degree = Math.PI/3;//开始时的移动角度private double speed = 10;Image img = GameUtil.getImage("images/无标题.jpg");/*** 加载窗口*/public void launchFrame() {setSize(500,500);//窗口大小setLocation(100,100);//窗口位置setVisible(true);//默认不可见new PaintThread().start();//启动重画线程addWindowListener(new WindowAdapter() {public void windowClosing(WindowEvent e) {//点击右上角"X"退出System.exit(0);}});}@Overridepublic void paint(Graphics g) { //回调函数，系统自动调用g.drawImage(img, (int)x, (int)y, null);//图片移动if (speed > 0 ) {speed -= 0.05;} else {speed = 0;}x += speed * Math.cos(degree);//x轴上的增量y += speed * Math.sin(degree);//y轴上的增量if (y > 500 -30 || y < 30) {//向下移动的边界y > 窗口高度 - 自身高度，向上移动的边界y < 标题的高度degree = -degree;}if (x < 0 || x > 500 - 30) {//水平移动的边界degree = Math.PI - degree;}}/*** 定义一个重画窗口的线程类*/class PaintThread extends Thread {@Overridepublic void run() {while(true) {repaint();try {Thread.sleep(40);} catch (InterruptedException e) {e.printStackTrace();}}}}public static void main(String[] args) {BilliardsGame gameFrame = new BilliardsGame();gameFrame.launchFrame();}
}

3、S01E082_01椭圆轨迹飞行

public void paint(Graphics g) {g.drawImage(img, (int)x, (int)y, null);x = 100 + 100 * Math.cos(degree);y = 200 + 50 * Math.sin(degree);degree += 0.1;
}