java做台球游戏 java桌球小游戏

使用Java做一个简单的台球游戏，只有白球的运动，半成品

BallGame.

package com.company;

import javax.swing.*;
import java.awt.*;

//建立窗口
public class BallGame extends JFrame {

    Desktop desk = new Desktop();

    Ball WhiteBall = new Ball("白球",200,200,20,Math.PI/3,this);

    Line line = new Line(0,0,0,0,this,WhiteBall);

    /**定义画布*/
    Image offScreenImage = null;



    /**窗口创建的启动方法*/
    public void launch(){
        //窗口是否可见
        this.setVisible(true);
        //设置窗口大小
        this.setSize(852,500);
        //设置窗口的位置
        this.setLocation(100,200);
        //设置窗口的标题
        this.setTitle("桌球游戏");

        WhiteBall.setBallPicture("\\白球.png");


        while(true){
            repaint();
            try{
                Thread.sleep(40);//没40ms调用一次repaint方法
            }catch (Exception e){
                e.printStackTrace();
            }
        }
    }
    /**绘制画布*/
    @Override
    public void paint(Graphics g){

        //创建和容器一样大下的图片
        if(offScreenImage==null){
            offScreenImage=this.createImage(this.getWidth(),this.getHeight());
        }
        //获取该图片的画布（大小和图片一样，也和球桌大小一样）
        Graphics gImage = offScreenImage.getGraphics();
        //设置背景颜色
        gImage.setColor(Color.darkGray);
        //填充整个画布
        gImage.fillRect(0,0,this.getWidth(),this.getHeight());

        //绘制桌面图片
        desk.Painting(gImage);

        //绘制白球
        WhiteBall.Painting(gImage);

        //改变直线画笔的颜色
        gImage.setColor(Color.red);
        //绘制直线
        line.Painting(gImage);

        //将缓冲区绘制好的图形整个绘制到容器中
        g.drawImage(offScreenImage,0,0,null);


    }

    public static void main(String[] args) {
        BallGame bg = new BallGame();

        bg.launch();
    }
}

Printable.java

package com.company;

import java.awt.*;

public interface Paintable {
    public void Painting(Graphics g);
}

Desktop.java

package com.company;

import java.awt.*;

public class Desktop implements Paintable{
    /**获取桌面图片*/
    Image desk = Toolkit.getDefaultToolkit().getImage("src\\com\\company\\球桌.png");

    @Override
    public void Painting(Graphics g) {
        g.drawImage(desk,0,20,null);
    }
}

Line.java

package com.company;

import java.awt.*;

public class Desktop implements Paintable{
    /**获取桌面图片*/
    Image desk = Toolkit.getDefaultToolkit().getImage("src\\com\\company\\球桌.png");

    @Override
    public void Painting(Graphics g) {
        g.drawImage(desk,0,20,null);
    }
}

Ball.java

package com.company;

import java.awt.*;

public class Ball implements Paintable{

    private String Ballname;
    private Image BallPicture;
    /**球坐标*/
    private double x = 200;
    private double y = 200;
    /**球的移动速度*/
    private double speed = 20;
    /**移动角度*/
    private double degree = Math.PI/3;
    private BallGame ballgame;


    public Ball(String Ballname,double x,double y,double speed,double degree,BallGame ballgame){
        this.Ballname=Ballname;
        this.degree=degree;
        this.speed=speed;
        this.x=x;
        this.y=y;
        this.ballgame = ballgame;
    }


    @Override
    public void Painting(Graphics g) {
        g.drawImage(this.BallPicture,(int)x,(int)y,null);
        if(speed>=0) {
            speed -= 0.15;//0，15为摩擦
            x += speed*Math.cos(degree);
            y += speed*Math.sin(degree);
        }



        System.out.println("x "+x+"        y "+y);
        //碰到上下边
        if(y <= 40||y >= ballgame.getHeight()-50){
            degree = -degree;
        }
        //碰到左右边
        if(x <= 70||x >= ballgame.getWidth()-70){
            degree = Math.PI - degree;
        }

    }

    public void setBallPicture(String path) {
        this.BallPicture = Toolkit.getDefaultToolkit().getImage(path);
    }

    public double getDegree() {
        return degree;
    }

    public void setDegree(double degree) {
        this.degree = degree;
    }

    public double getSpeed() {
        return speed;
    }

    public void setSpeed(double speed) {
        this.speed = speed;
    }

    public double getX() {
        return x;
    }

    public void setX(double x) {
        this.x = x;
    }

    public double getY() {
        return y;
    }

    public void setY(double y) {
        this.y = y;
    }

    public String getBallname() {
        return Ballname;
    }

    public void setBallname(String ballname) {
        Ballname = ballname;
    }

}

GameUtils.java

package com.company;

public class GameUtils {
    /**函数，返回两点之间的角度*/
    public static double getAngle(double startx,double starty,double endx,double endy){
        double tempx = endx - startx;
        double tempy = endy - starty;
        double z = Math.sqrt(tempx*tempx+tempy*tempy);
        double angle = (float)Math.asin(Math.abs(tempy)/z);
        if(tempx>0&&tempy<0){
            angle = Math.PI*2 - angle;
        }
        else if (tempx<0&&tempy<0){
            angle=Math.PI +angle;
        }
        else if(tempx<0&&tempy>0){
            angle =Math.PI -angle;
        }
        else
        {
            angle = angle;
        }
        return angle;
    }
}

视频网址：https://www.bilibili.com/video/BV1yo4y1C7bW?p=1