我最近制作了一个2D平台游戏并试图实现一些在线2玩家功能。有一个服务器程序,当然还有客户端。它的工作方式如下:您的客户端可以在ID 1和ID 2之间进行选择,并且ID会直接发送到服务器,因此服务器可以决定接收哪些数据以及要将数据发回给您(客户端1需要客户端2的坐标)对于前。)。
现在的问题是发送的数据以某种方式被操纵并且存在错误的值。另外,如果我发送了一个真正的布尔值,我的客户端会在我发送布尔值的行中停止,并且不会继续运行代码!
我重建了" connect"新客户端程序中的方法1比1,与我的gameclient存在相同的问题!
感谢您的建议!经过长时间的谷歌搜索似乎没有同样的问题: - (
来自(重建)客户的代码:
import java.io.*;
import java.net.Socket;
public class main {
public int x=5,y=10,id=2;
public int rX=0,rY=0;
public boolean receivedAttacked = false;
public boolean attacked=false;
public static void main(String[] args) {
System.out.println("Connecting...");
new main();
}
public main() {
try {
Socket socket = new Socket("localhost",6789);
DataOutputStream dout = new DataOutputStream(socket.getOutputStream());
DataInputStream din = new DataInputStream(socket.getInputStream());
dout.writeByte(1);
dout.writeInt(id);
dout.flush();
dout.writeByte(2);
dout.writeInt(x);
System.out.print("X: " + x + " / ");
dout.flush();
dout.writeByte(3);
dout.writeInt(y);
System.out.print("Y: " + y + " / ");
dout.flush();
dout.writeByte(4);
System.out.print("Attacked: " + attacked + " / " + "\n");
dout.writeBoolean(attacked);
dout.flush();
int byteIndex = 3;
byte byteRead;
for(int i = 0; i < byteIndex; i++) {
byteRead = din.readByte();
switch(byteRead) {
case 1:
rX = din.readInt();
System.out.print("RECEIVED:" + "x: " + rX + " / ");
case 2:
rY = din.readInt();
System.out.print("Y: " + rY + " / ");
case 3:
receivedAttacked = din.readBoolean();
System.out.print("rAttacked: " + receivedAttacked + " / " + "\n");
default:
}
}
System.out.println("PAUSE");
dout.close();
din.close();
socket.close();
} catch(Exception e) {
e.printStackTrace();
}
}
}
服务器代码(只是处理所有输入和输出的线程):
package me.server.lel;
import java.awt.BorderLayout;
import java.awt.Canvas;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.awt.image.BufferStrategy;
import java.awt.image.BufferedImage;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.net.Socket;
import java.net.SocketException;
import javax.swing.JFrame;
public class ServerThread extends Canvas implements Runnable {
Socket incoming; //the client socket so to say
public int id;
public int x1 = 0,y1 = 0,x2 = 0,y2 = 0;
public boolean attacked1 = false, attacked2 = false;
public ServerThread(Socket incoming, int id) {
this.incoming = incoming;
this.id = id;
}
@Override
public void run() {
try {
//Reading the input and saving it in global variables
DataInputStream in = new DataInputStream(incoming.getInputStream());
byte index;
int byteAmount = 4;
for(int i = 0; i < byteAmount; i++ ){
index = in.readByte();
switch(index) {
case 1:
id = in.readInt();
break;
case 2:
if(id == 1) {
x1 = in.readInt();
} else if(id == 2) {
x2 = in.readInt(); ;
}
break;
case 3:
if(id == 1) {
y1 = in.readInt();
} else if(id == 2) {
y2 = in.readInt();
}
case 4:
if(id == 1) {
attacked1 = in.readBoolean();
} else if(id == 2) {
attacked2 = in.readBoolean();
}
default:
}
}
//Writing back the values of the opposite player
DataOutputStream out = new DataOutputStream(incoming.getOutputStream());
if(id == 1) {
out.writeByte(1);
out.writeInt(x2);
out.flush();
out.writeByte(2);
out.writeInt(y2);
out.flush();
out.writeByte(3);
out.writeBoolean(attacked2);
out.flush();
} else if(id == 2) {
out.writeByte(1);
out.writeInt(x1);
out.flush();
out.writeByte(2);
out.writeInt(y1);
out.flush();
out.writeByte(3);
out.writeBoolean(attacked1);
out.flush();
}
} catch(SocketException e) {
System.out.println("User Disconnected: " + incoming.getLocalAddress());
e.printStackTrace();
} catch(Exception e) {
e.printStackTrace();
}
}
}
因为您可以看到我在我的客户端代码中执行了一些控制台输出。因此,如果我按原样运行程序,那就是控制台输出:
Connecting...
X: 5 / Y: 10 / Attacked: false /
RECEIVED:x: 0 / Y: 33554432 / rAttacked: false /
rAttacked: false /
所以你可以看到收到的每个值都是错误的,除了布尔值。现在,如果我进入我的客户端代码并设置&#34;攻击&#34; boolean为true,输出就像这样运行:
Connecting...
X: 5 / Y: 10 / Attacked: true /
所以我假设代码停止了并且没有继续代码(发生在我的客户端,甚至停止滴答)
对不起,很长的帖子,我希望我的代码足以让你们查一下!非常感谢你!
答案 0 :(得分:1)
您忘记了自己的break
在您的客户cases
以及服务器中的case 3
和case 4
。例如,在这里,当您的客户端发送第三个字节时,服务器会读取它,但也会通过处理布尔值的case 4
。
这可能不是奇怪数字值的来源,但我很确定这是布尔错误的原因。
尝试添加所有break
语句,这样就不会在执行时使用字节操作做一些无意识的疯狂事情。