如何解决集成两个窗口的Java乒乓游戏
我刚开始学习编程，为了我的考试项目，我决定制作一个带有菜单的乒乓球游戏。 我目前的主要问题是弄清楚如何从菜单中构建和启动我的游戏。菜单和游戏都可以很好地分开，但我不知道如何整合它们。或者更准确地说，如何从菜单开始乒乓球比赛。
我制作了一个从“菜单”切换到“游戏”的开始按钮。如果我只是插入一些背景颜色，它工作正常。但是，当我尝试切换到“游戏模式”时，开始按钮会冻结。
集成的最佳实践是什么？有 2 种paintcomponent 方法重要吗？任何人都可以帮助新人吗？
感谢所有提示！
这是我的代码和我无法工作的 spil() 方法。
import java.awt.BorderLayout;
import java.awt.CardLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.GridLayout;
import java.awt.Image;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.util.Random;
import javax.imageio.ImageIO;
import javax.sound.midi.Soundbank;
import javax.swing.GroupLayout;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextArea;
import javax.swing.JTextField;
public class Game extends JPanel {
JFrame frame =new JFrame();
// Paneler objekter
JPanel panelc= new JPanel();
JPanel panel1 = new JPanel();
JPanel panel2 = new JPanel();
JPanel pNorth = new JPanel();
JPanel pCenter = new JPanel();
// Objekter Gamemenu
CardLayout cl = new CardLayout();
MovingBall mb=new MovingBall();
JLabel nTitel = new JLabel();
JLabel sTekst = new JLabel("--- Må den bedste spiller vinde ---");
JComboBox<String> cBane = new JComboBox<String>();
JButton start= new JButton("START");
JComboBox<String> cP1 = new JComboBox<String>();
JComboBox<String> cP2 = new JComboBox<String>();
JTextField cName1 = new JTextField("Navn på spiller 1");
JTextField cName2 = new JTextField("Navn på spiller 2");
JLabel pic = new JLabel();
Banelistener bl= new Banelistener();
Banelistener s= new Banelistener();
// Variable Gamemenu
String filstring = "C:\\Users\\b047222\\Desktop\\DTU - GP\\lava2.jpg"; //bør sættes til null efter program virker
public static int vinduesbredde = 900;
public static int vindueshøjde = 500;
BufferedImage image = null;
String clnummer = "1";
public static void main(String[] args) {
Game game = new Game();
}
public Game() {
frame.setSize(new Dimension(vinduesbredde,vindueshøjde));
frame.setTitle("Lava Spillet");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setLocationRelativeTo(null); // Center the frame
frame.setVisible(true);
// Layout
panelc.setLayout(cl);
panelc.add(panel1,"1");
panelc.add(panel2,"2");
panel1.setLayout(new BorderLayout());
panel1.add(pNorth,BorderLayout.NORTH);
panel1.add(pCenter);
pCenter.setLayout(null);
panel2.add(mb);
mb.setFocusable(true);
mb.addKeyListener(mb);
cl.show(panelc,clnummer);
start.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
clnummer="2";
cl.show(panelc,clnummer);
spil();
}
});
repaint();
// Eventhandlers
cBane.addActionListener(bl);
// North
nTitel.setText("LAVA");
nTitel.setForeground(Color.orange);
nTitel.setFont(new Font("Verdana",Font.BOLD,24));
pNorth.setBackground(Color.black);
pNorth.add(nTitel);
// Center
int x1 = 200;
int x2 = 675;
int y1 = 100;
int y2 = 330;
int y3 = 365;
int bx = 100;
int by = 25;
pCenter.add(cBane);
cBane.setBackground(Color.orange);
cBane.setBounds(vinduesbredde / 2 - bx / 2,100,bx,by);
cBane.addItem("Lavaland");
cBane.addItem("Enhjørningeland");
cBane.addItem("Jungle");
pCenter.add(start);
start.setBounds(vinduesbredde / 2 - bx / 2,140,by);
pCenter.add(cName1);
cName1.setBounds(x1,y2,by);
cName1.setText("Navn på spiller 1");
pCenter.add(cP1);
cP1.setBounds(x1,y3,by);
cP1.addItem("Elsa");
cP1.addItem("Vaiana");
cP1.addItem("Runde Tårn");
pCenter.add(cName2);
cName2.setBounds(x2,by);
cP2.addItem("Elsa");
cP2.addItem("Vaiana");
cP2.addItem("Runde Tårn");
pCenter.add(cP2);
cP2.setBounds(x2,by);
// South
pCenter.add(sTekst);
sTekst.setBounds(vinduesbredde / 2 - 80,400,200,by);
frame.add(panelc);
}
public void spil() {
mb.addKeyListener(mb);
mb.setFocusable(true);
cl.show(panelc,"2");
while (true) {
mb.move();
mb.repaint();
try {
Thread.sleep(1);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
protected void paintComponent(Graphics g) {
File fil = new File(filstring);
try {
image = ImageIO.read(fil);
} catch (IOException e) {
e.printStackTrace();
}
super.paintComponent(g);
g.drawImage(image,vinduesbredde,vindueshøjde,this);
g.drawRect(100,50,50);
}
class Banelistener implements ActionListener {
@Override
public void actionPerformed(ActionEvent e) {
//baggrund ved banevalg
JComboBox valg = (JComboBox) e.getSource();
Object valgt= valg.getSelectedItem();
String land = valgt.toString();
switch (land) {
case "Lavaland":
filstring = "C:\\Users\\b047222\\Desktop\\DTU - GP\\lava2.jpg";
break;
case "Enhjørningeland":
filstring = "C:\\Users\\b047222\\Desktop\\DTU - GP\\Enhorning.jpg";
break;
case "Jungle":
filstring = "C:\\Users\\b047222\\Desktop\\DTU - GP\\Jungle.jpg";
break;
}
pNorth.repaint();
}
}
}
/////////////////////////////
class MovingBall extends JPanel implements KeyListener{
Bar b1 = new Bar("Adam","Elsa",GameMenu.vindueshøjde/2-40); //bør gøres dynamisk ud fra den enkelte karakter
Bar b2 = new Bar("Alma","Vaiana",GameMenu.vinduesbredde,GameMenu.vindueshøjde/2-40);
Random ran = new Random();
int x=1;
int y=ran.nextInt(200); //skal laves dynamisk ift. framestørrelse
int vinkelx= 1;
Boolean opned= ran.nextBoolean();// gør det muligt at bolden kan starte i anden retning
int vinkely;
{if (opned==true)
{vinkely =1;}
else {vinkely =-1;} }
int ballradius=25;
int hastighed=10;
void move () {
//bounce på bat x-akse
if (x+vinkelx==b1.x+Bar.figwidth && y+vinkely < b1.y+b1.h && y+vinkely > b1.y) {
vinkelx=1;}
if (x+vinkelx==b2.x && b2.y<y+vinkely && b2.y+b2.h>y+vinkely) {
vinkelx=-1;}
//bounce på bat y-akse
if (y+vinkely==b1.y+Bar.figheight && x+vinkelx < b1.x+b1.w && x+vinkelx > b1.x) {
vinkely=1;}
if (y+vinkely==b1.y && x+vinkelx < b1.x+b1.w && x+vinkelx > b1.x) {
vinkely=-1;}
if (y+vinkely==b2.y+Bar.figheight && x+vinkelx < b2.x+b2.w && x+vinkelx > b2.x) {
vinkely=1;}
if (y+vinkely==b2.y && x+vinkelx < b2.x+b2.w && x+vinkelx > b2.x) {
vinkely=-1;}
//Bevægelse af bold
if (x+vinkelx < 0) {
vinkelx=1;
} else if (x+vinkelx> getWidth()-ballradius) {
vinkelx=-1;
} else if (y+vinkely < 0) {
vinkely=1;
} else if (y+vinkely> getHeight()-ballradius) {
vinkely=-1;
}
//score
if (x==GameMenu.vinduesbredde) {
b2.score=b2.score+1;}
if (x==0) {
b1.score=b1.score+1;}
x=x+vinkelx;
y=y+vinkely;
}
int scorex1=(int) (GameMenu.vinduesbredde*0.25);
int scorex2=(int) (GameMenu.vinduesbredde*0.75);
int scorey=25;
int scoreb=70;
int scoreh=50;
String p1vinder=b1.navn.toUpperCase()+" HAR VUNDET!!!";
String p2vinder=b2.navn.toUpperCase()+" HAR VUNDET!!!";
protected void paintComponent(Graphics g) {
super.paintComponent(g);
g.drawImage(b1.image,b1.x,b1.y,b1.w,b1.h,null);
g.drawImage(b2.image,b2.x,b2.y,b2.w,b2.h,null);
g.drawLine(GameMenu.vinduesbredde/2,GameMenu.vinduesbredde/2,GameMenu.vindueshøjde);
g.setColor(Color.GRAY);
g.fillRect( scorex1,scorey,scoreb,scoreh);
g.fillRect( scorex2,scoreh);
g.setColor(Color.ORANGE);
g.setFont(new Font("Helvetica",25));
g.drawString(String.valueOf(b1.score),scorex1+scoreb/2-6,scorey+scoreh/2+8);
g.drawString(String.valueOf(b2.score),scorex2+scoreb/2-6,scorey+scoreh/2+8);
g.setColor(Color.BLACK);
g.fillOval(x,y,ballradius,ballradius);
g.setFont(new Font("Helvetica",50));
if (b1.score>9) {
g.drawString(p1vinder,(int) (GameMenu.vinduesbredde*0.50)-250,(int) (GameMenu.vindueshøjde/2)-5);
}
else if (b2.score>9) {
g.drawString(p2vinder,(int) (GameMenu.vindueshøjde/2)-5);
}
}
public void keyTyped(KeyEvent e) {
// TODO Auto-generated method stub
}
public void keyPressed(KeyEvent e) {
if (e.getKeyCode()==KeyEvent.VK_W) {
if (b1.y>0) {
b1.y=b1.y-hastighed;
}
}
else if (e.getKeyCode()==KeyEvent.VK_S) {
if (b1.y<GameMenu.vindueshøjde) {
b1.y=b1.y+hastighed;
}
}
if (e.getKeyCode()==KeyEvent.VK_UP) {
if (b2.y>0) {
b2.y=b2.y-hastighed;
}
}
else if (e.getKeyCode()==KeyEvent.VK_DOWN) {
if (b2.y<GameMenu.vindueshøjde) {
b2.y=b2.y+hastighed;
}
}
repaint();
}
public void keyReleased(KeyEvent e) {
}
}
class Bar extends JPanel {
String navn="test";
int w;
int h;
int x;
int y;
String fig;
BufferedImage image = null;
int score;
static int figwidth=80;
static int figheight=100;
// static int elsah=120;
// static int elsap=elsah/2;
// static int vaianah=120;
// static int vaianap=vaianah/2;
// static int rundetaarnh=100;
// static int rundetaarnp=rundetaarnh/2;
public Bar(String navn,String figur,int x,int y) {
if (figur=="Elsa") {
this.navn=navn;
this.w=figwidth;
this.h=figheight;
this.x=x;
this.y=y;
this.score=0;
this.fig="C:\\Users\\b047222\\Desktop\\DTU - GP\\elsa.jpg";
}
else if (figur=="Vaiana") {
this.navn=navn;
this.w=figwidth;
this.h=figheight;
this.x=x;
this.y=y;
this.score=0;
this.fig="C:\\Users\\b047222\\Desktop\\DTU - GP\\vaiana.jpg";
}
else if (figur=="Runde Tårn") {
this.navn=navn;
this.w=figwidth;
this.h=figheight;
this.x=x;
this.y=y;
this.score=0;
this.fig="C:\\Users\\b047222\\Desktop\\DTU - GP\\taarn.jpg";
}
File fil = new File(fig);
try {
image = ImageIO.read(fil);
} catch (IOException e) {
e.printStackTrace();
}
}
}
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