package General;
import java.io.*;
import java.net.*;
import java.util.Scanner;
class Server
{
public static final int PORT = 7777;
protected static final int HEIGHT = 525;
protected static final int WIDTH = 1680;
private double y1 = 300;
private double y2 = 300;
private Scanner scan;
private PrintStream printStream;
private ServerThread one;
private ServerThread two;
public static void main( String args[] ) throws IOException
{
System.out.println( "THIS IS THE RIGHT SERVER" );
new Server().runServer();
}
public void runServer() throws IOException
{
ServerSocket serverSocket = new ServerSocket( PORT );
System.out.println( "Server up & ready for connection..." );
while ( true )
{
Socket socket = serverSocket.accept();
new ServerThread( socket ).start();
}
}
public class ServerThread extends Thread
{
Socket socket;
ServerThread( Socket socket )
{
this.socket = socket;
}
public void run()
{
try
{
scan = new Scanner( socket.getInputStream() );
printStream = new PrintStream( socket.getOutputStream() );
System.out.println( "User " + scan.nextLine() + " has connected to the server." );
}
catch ( IOException e )
{
e.printStackTrace();
}
for ( int j = 0; j > -1; j++ )
{
System.out.println( "nope" );
printStream.println( "not running" );
if ( scan.nextLine().equals( "started" ) )
{
printStream.println( "go" );
break;
}
System.out.println( "nope2" );
}
try
{
System.out.println( "IM OUT" );
printStream.flush();
String message = null;
while ( ( message = scan.nextLine() ) != null )
{
if ( message.equals( "not started" ) || message.equals( "started" ) )
{
printStream.println( "lag" );
}
else
{
System.out.println( "Incoming client message: " + message );
String position = message.substring( 10 );
double positionDouble = Double.parseDouble( position );
String info = message.substring( 0, 8 );
if ( info.equals( "p1 y pos" ) )
{
y1 = positionDouble;
System.out.println( y1 );
}
else if ( info.equals( "p2 y pos" ) )
{
y2 = positionDouble;
System.out.println( y2 );
}
if ( info.equals( "p1 y pos" ) )
{
printStream.println( y2 );
}
else if ( info.equals( "p2 y pos" ) )
{
printStream.println( y1 );
}
}
}
socket.close();
}
catch ( IOException e )
{
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
package General;
import java.awt.Color;
import java.io.*;
import java.net.*;
import java.util.Scanner;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Label;
import java.awt.Rectangle;
import java.awt.TextField;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.Timer;
public class BallMover extends JPanel implements ActionListener, KeyListener
{
JFrame jf = new JFrame();
Timer tm = new Timer( 1, this );
protected TextField tf;
protected Label score1;
protected int p1s = 0;
protected Label score2;
protected int p2s = 0;
protected static final int HEIGHT = 525;
protected static final int WIDTH = 1680;
protected double y1 = 300;
protected double y2 = 300;
protected double velY1 = 1.5;
protected double velY2 = 1.5;
protected double ballx = WIDTH / 2;
protected double bally = HEIGHT / 2;
protected double velBall = 1.2;
protected int ballAngle;
protected Font hehe;
protected static final int OFFSET = 0;
Socket socket;
PrintStream fileStream;
Scanner scan1;
public BallMover() throws IOException
{
socket = new Socket( "localhost", PORT );
scan1 = new Scanner( socket.getInputStream() );
fileStream = new PrintStream( socket.getOutputStream() );
fileStream.println( name );
hehe = new Font( "Ariel", Font.PLAIN, 25 );
Rectangle instructions = new Rectangle( WIDTH / 3 - 10, OFFSET );
instructions.setLocation( 10, 0 );
Rectangle score1Pos = new Rectangle( WIDTH / 3, OFFSET );
score1Pos.setLocation( WIDTH / 3, 0 );
Rectangle score2Pos = new Rectangle( WIDTH / 3, OFFSET );
score2Pos.setLocation( 2 * WIDTH / 3, 0 );
Rectangle screen = new Rectangle( WIDTH, HEIGHT );
screen.setLocation( 0, 0 );
tf = new TextField( "", 10 );
tf.setBounds( new Rectangle( 5, 5 ) );
tf.setFont( hehe );
tf.setEditable( false );
jf.add( tf );
tf.addKeyListener( this );
JLabel instruct = new JLabel( convertToMultiline(
"Press: \n0 to restart \nq to change p1 padal direction \np to change p2 padal direction \ns to pause \ncy@ once you press 0"
+ "</html>" ) );
instruct.setBounds( instructions );
instruct.setFont( hehe );
// jf.add( instruct );
score1 = new Label( "Player 1 Score: " + p1s );
score1.setBounds( score1Pos );
score1.setFont( hehe );
// jf.add( score1 );
score2 = new Label( "Player 2 Score: " + p2s );
score2.setBounds( score2Pos );
score2.setFont( hehe );
// jf.add( score2 );
jf.setSize( WIDTH, HEIGHT );
this.setBounds( screen );
jf.add( this );
jf.setTitle( "BallMover1" );
jf.setVisible( true );
if ( Math.random() > .5 )
{
if ( Math.random() > .5 )
{
ballAngle = (int)( Math.random() * 45 ) + 315;
}
else
{
ballAngle = (int)( Math.random() ) + 45;
}
}
else
{
if ( Math.random() > .5 )
{
ballAngle = (int)( Math.random() * 45 ) + 135;
}
else
{
ballAngle = (int)( Math.random() * 45 ) + 180;
}
}
String command;
while ( true )
{
command = scan1.nextLine();
fileStream.println( "not started" );
System.out.println( command );
if ( command.equals( "go" ) )
{
break;
}
}
fileStream.flush();
}
public void paintComponent( Graphics g )
{
super.paintComponent( g );
g.setColor( Color.RED );
g.fillRect( 30, (int)y1, 30, 200 );
g.fillRect( WIDTH - 80, (int)y2, 30, 200 );
g.fillOval( (int)ballx, (int)bally, 40, 40 );
g.drawLine( 0, OFFSET, WIDTH, OFFSET );
}
@Override
public void keyTyped( KeyEvent e )
{
char input = e.getKeyChar();
if ( input == 's' )
{
if ( tm.isRunning() )
{
tm.stop();
}
else
{
tm.start();
}
}
if ( input == 't' )
{
System.out.println( "ballx: " + ballx );
System.out.println( "bally: " + bally );
System.out.println( "delta x: " + velBall * Math.cos( Math.toRadians( ballAngle ) ) );
System.out.println( "delta y: " + velBall * Math.sin( Math.toRadians( ballAngle ) ) );
System.out.println( "ball angle: " + ballAngle );
}
if ( input == '0' )
{
velBall = 1.05;
ballx = WIDTH / 2;
bally = HEIGHT / 2;
fileStream.println( "started" );
tm.start();
}
if ( input == 'q' )
{
velY1 *= -1;
}
}
@Override
public void keyPressed( KeyEvent e )
{
}
@Override
public void keyReleased( KeyEvent e )
{
}
@Override
public void actionPerformed( ActionEvent e )
{
System.out.println( "ballx: " + ballx );
System.out.println( "bally: " + bally );
System.out.println( "delta x: " + velBall * Math.cos( Math.toRadians( ballAngle ) ) );
System.out.println( "delta y: " + velBall * Math.sin( Math.toRadians( ballAngle ) ) );
System.out.println( "ball angle: " + ballAngle );
System.out.println( "" );
if ( y1 + 210 > HEIGHT || y1 <= OFFSET ) // p1 padal
{
if ( y1 <= OFFSET )
{
y1 = 5 + OFFSET;
}
velY1 *= -1;
}
if ( y2 + 210 > HEIGHT || y2 <= OFFSET )// p2 padal
{
if ( y2 <= OFFSET )
{
y2 = 5 + OFFSET;
}
velY2 *= -1;
}
y1 = y1 + velY1;
y2 = y2 + velY2;
if ( ballx < 70 && ballx > 40 && bally >= y1 && bally <= y1 + 200 ) // bounce
// off
// p1
{
System.out.println( "bdoink1" );
if ( Math.random() > .5 )
{
ballAngle = (int)( Math.random() * 45 ) + 315;
}
else
{
ballAngle = (int)( Math.random() ) + 45;
}
velBall += .03;
}
if ( ballx > WIDTH - 100 && ballx < WIDTH - 70 && bally >= y2 && bally <= y2 + 200 ) // bounce
// off
// p2
{
System.out.println( "bdoink2" );
if ( Math.random() > .5 )
{
ballAngle = (int)( Math.random() * 45 ) + 135;
}
else
{
ballAngle = (int)( Math.random() * 45 ) + 180;
}
velBall += .03;
}
if ( ballx < 0 ) // Player 2 Wins
{
p2s++;
score2.setText( "Player 2 Score: " + p2s );
tm.stop();
}
if ( ballx > WIDTH ) // Player 1 Wins
{
p1s++;
score1.setText( "Player 1 Score: " + p1s );
tm.stop();
}
if ( bally > HEIGHT - 50 || bally <= OFFSET ) // touches bottom or top
// wall
{
if ( bally <= OFFSET )
{
bally = 5 + OFFSET;
}
ballAngle *= -1;
}
ballx += velBall * Math.cos( Math.toRadians( ballAngle ) );
bally += velBall * Math.sin( Math.toRadians( ballAngle ) );
// send info to server
System.out.println( "hi1" );
fileStream.println( "p1 y pos: " + y1 );
System.out.println( "hi2" );
String work = scan1.nextLine();
System.out.println( "hi3" );
if ( work.equals( "lag" ) )
{
System.out.println( "hi4" );
}
else
{
y2 = Double.parseDouble( work );
}
System.out.println( "hi5" );
repaint();
}
public static String convertToMultiline( String orig )
{
return "<html>" + orig.replaceAll( "\n", "<br>" );
}
// Client
public static final int PORT = 7777;
protected static final String name = "client1";
public static void main( String args[] ) throws IOException
{
new BallMover();
}
}
package General;
import java.awt.Color;
import java.io.*;
import java.net.*;
import java.util.Scanner;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Label;
import java.awt.Rectangle;
import java.awt.TextField;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.Timer;
public class BallMover2 extends JPanel implements ActionListener, KeyListener
{
JFrame jf = new JFrame();
Timer tm = new Timer( 1, this );
protected TextField tf;
protected Label score1;
protected int p1s = 0;
protected Label score2;
protected int p2s = 0;
protected static final int HEIGHT = 525;
protected static final int WIDTH = 1680;
protected double y1 = 300;
protected double y2 = 300;
protected double velY1 = 1.5;
protected double velY2 = 1.5;
protected double ballx = WIDTH / 2;
protected double bally = HEIGHT / 2;
protected double velBall = 1.2;
protected int ballAngle;
protected Font hehe;
protected static final int OFFSET = 0;
Socket socket;
PrintStream fileStream;
Scanner scan1;
public BallMover2() throws IOException
{
socket = new Socket( "localhost", PORT );
scan1 = new Scanner( socket.getInputStream() );
fileStream = new PrintStream( socket.getOutputStream() );
fileStream.println( name );
hehe = new Font( "Ariel", Font.PLAIN, 25 );
Rectangle instructions = new Rectangle( WIDTH / 3 - 10, OFFSET );
instructions.setLocation( 10, 0 );
Rectangle score1Pos = new Rectangle( WIDTH / 3, OFFSET );
score1Pos.setLocation( WIDTH / 3, 0 );
Rectangle score2Pos = new Rectangle( WIDTH / 3, OFFSET );
score2Pos.setLocation( 2 * WIDTH / 3, 0 );
Rectangle screen = new Rectangle( WIDTH, HEIGHT );
screen.setLocation( 0, 0 );
tf = new TextField( "", 10 );
tf.setBounds( new Rectangle( 5, 5 ) );
tf.setFont( hehe );
tf.setEditable( false );
jf.add( tf );
tf.addKeyListener( this );
JLabel instruct = new JLabel( convertToMultiline(
"Press: \n0 to restart \nq to change p1 padal direction \np to change p2 padal direction \ns to pause \ncy@ once you press 0"
+ "</html>" ) );
instruct.setBounds( instructions );
instruct.setFont( hehe );
// jf.add( instruct );
score1 = new Label( "Player 1 Score: " + p1s );
score1.setBounds( score1Pos );
score1.setFont( hehe );
// jf.add( score1 );
score2 = new Label( "Player 2 Score: " + p2s );
score2.setBounds( score2Pos );
score2.setFont( hehe );
// jf.add( score2 );
jf.setSize( WIDTH, HEIGHT );
this.setBounds( screen );
jf.add( this );
jf.setTitle( "BallMover2" );
jf.setVisible( true );
if ( Math.random() > .5 )
{
if ( Math.random() > .5 )
{
ballAngle = (int)( Math.random() * 45 ) + 315;
}
else
{
ballAngle = (int)( Math.random() ) + 45;
}
}
else
{
if ( Math.random() > .5 )
{
ballAngle = (int)( Math.random() * 45 ) + 135;
}
else
{
ballAngle = (int)( Math.random() * 45 ) + 180;
}
}
String command;
while ( true )
{
command = scan1.nextLine();
fileStream.println( "not started" );
System.out.println( command );
if ( command.equals( "go" ) )
{
break;
}
}
fileStream.flush();
}
public void paintComponent( Graphics g )
{
super.paintComponent( g );
g.setColor( Color.RED );
g.fillRect( 30, (int)y1, 30, 200 );
g.fillRect( WIDTH - 80, (int)y2, 30, 200 );
g.fillOval( (int)ballx, (int)bally, 40, 40 );
g.drawLine( 0, OFFSET, WIDTH, OFFSET );
}
@Override
public void keyTyped( KeyEvent e )
{
char input = e.getKeyChar();
if ( input == 's' )
{
if ( tm.isRunning() )
{
tm.stop();
}
else
{
tm.start();
}
}
if ( input == 't' )
{
System.out.println( "ballx: " + ballx );
System.out.println( "bally: " + bally );
System.out.println( "delta x: " + velBall * Math.cos( Math.toRadians( ballAngle ) ) );
System.out.println( "delta y: " + velBall * Math.sin( Math.toRadians( ballAngle ) ) );
System.out.println( "ball angle: " + ballAngle );
}
if ( input == '0' )
{
velBall = 1.05;
ballx = WIDTH / 2;
bally = HEIGHT / 2;
fileStream.println( "started" );
tm.start();
}
if ( input == 'p' )
{
velY2 *= -1;
}
}
@Override
public void keyPressed( KeyEvent e )
{
}
@Override
public void keyReleased( KeyEvent e )
{
}
@Override
public void actionPerformed( ActionEvent e )
{
System.out.println( "ballx: " + ballx );
System.out.println( "bally: " + bally );
System.out.println( "delta x: " + velBall * Math.cos( Math.toRadians( ballAngle ) ) );
System.out.println( "delta y: " + velBall * Math.sin( Math.toRadians( ballAngle ) ) );
System.out.println( "ball angle: " + ballAngle );
System.out.println( "" );
if ( y1 + 210 > HEIGHT || y1 <= OFFSET ) // p1 padal
{
if ( y1 <= OFFSET )
{
y1 = 5 + OFFSET;
}
velY1 *= -1;
}
if ( y2 + 210 > HEIGHT || y2 <= OFFSET )// p2 padal
{
if ( y2 <= OFFSET )
{
y2 = 5 + OFFSET;
}
velY2 *= -1;
}
y1 = y1 + velY1;
y2 = y2 + velY2;
if ( ballx < 70 && ballx > 40 && bally >= y1 && bally <= y1 + 200 ) // bounce
// off
// p1
{
System.out.println( "bdoink1" );
if ( Math.random() > .5 )
{
ballAngle = (int)( Math.random() * 45 ) + 315;
}
else
{
ballAngle = (int)( Math.random() ) + 45;
}
velBall += .03;
}
if ( ballx > WIDTH - 100 && ballx < WIDTH - 70 && bally >= y2 && bally <= y2 + 200 ) // bounce
// off
// p2
{
System.out.println( "bdoink2" );
if ( Math.random() > .5 )
{
ballAngle = (int)( Math.random() * 45 ) + 135;
}
else
{
ballAngle = (int)( Math.random() * 45 ) + 180;
}
velBall += .03;
}
if ( ballx < 0 ) // Player 2 Wins
{
p2s++;
score2.setText( "Player 2 Score: " + p2s );
tm.stop();
}
if ( ballx > WIDTH ) // Player 1 Wins
{
p1s++;
score1.setText( "Player 1 Score: " + p1s );
tm.stop();
}
if ( bally > HEIGHT - 50 || bally <= OFFSET ) // touches bottom or top
// wall
{
if ( bally <= OFFSET )
{
bally = 5 + OFFSET;
}
ballAngle *= -1;
}
ballx += velBall * Math.cos( Math.toRadians( ballAngle ) );
bally += velBall * Math.sin( Math.toRadians( ballAngle ) );
// send info to server
System.out.println( "hi1" );
fileStream.println( "p2 y pos: " + y2 );
System.out.println( "hi2" );
String work = scan1.nextLine();
System.out.println( "hi3" );
if ( work.equals( "lag" ) )
{
System.out.println( "hi4" );
}
else
{
y1 = Double.parseDouble( work );
}
System.out.println( "hi5" );
repaint();
}
public static String convertToMultiline( String orig )
{
return "<html>" + orig.replaceAll( "\n", "<br>" );
}
// Client
public static final int PORT = 7777;
protected static final String name = "client2";
public static void main( String args[] ) throws IOException
{
new BallMover2();
}
}
我正在尝试与2个不同的客户进行乒乓球比赛。我制作了一台服务器，可以从两个踏板上收集信息并经常更新踏板位置。每当我用2个客户端运行我的代码时，第一个客户端就会停止向服务器提供信息。我想知道多个客户端是否需要多个线程。如果是这样，怎么样？感谢。