Client-Server program

jyciap11

Hello everyone I have a new problem. I made ​​this program that connects the server and client to each other. But I must make sure that every time a new client connects to be asked: username and a color of your choice, and that these data are saved for each user. how can I do?

import processing.net.*;

// Declare a server
Server server;

// Used to indicate a new message has arrived
float newMessageColor = 255;
PFont f;
String incomingMessage = "";

void setup() {
  size(400,200);

  // Create the Server on port 5204
  server = new Server(this, 5204); 
  f = createFont("Arial",16,true);
}

void draw() {
  background(newMessageColor);

  // newMessageColor fades to white over time
  newMessageColor = constrain(newMessageColor + 0.3,0,255);
  textFont(f);
  textAlign(CENTER);
  fill(255);

  // The most recent incoming message is displayed in the window.
  text(incomingMessage,width/2,height/2); 
  // If a client is available, we will find out
  // If there is no client, it will be"null"
  Client client = server.available();
  // We should only proceed if the client is not null
  if (client!= null) {

    // Receive the message
    // The message is read using readString().
    incomingMessage = client.readString(); 
    // The trim() function is used to remove the extra line break that comes in with the message.
    incomingMessage = incomingMessage.trim();

    // Print to Processing message window
    println( "Client says:" + incomingMessage);

    // Write message back out (note this goes to ALL clients)
    server.write( "How does " + incomingMessage + " make you feel?\n" ); // A reply is sent using write().

    // Reset newMessageColor to black
    newMessageColor = 0;
  }
}

// The serverEvent function is called whenever a new client connects.
void serverEvent(Server server, Client client) {
  incomingMessage = "A new client has connected: " + client.ip();
  println(incomingMessage);
  // Reset newMessageColor to black
  newMessageColor = 0;
}

Client

import processing.net.*;
// Declare a client
Client client;

// Used to indicate a new message
float newMessageColor = 0;
// A String to hold whatever the server says
String messageFromServer = "";
// A String to hold what the user types
String typing ="";

PFont f;

void setup() {
  size(400,200);
  // Create the Client, connect to server at 127.0.0.1 (localhost), port 5204
  client = new Client(this,"127.0.0.1", 5204);
  f = createFont("Arial",16,true);

}

void draw() {
  background(255);

  // Display message from server
  fill(newMessageColor);
  textAlign(CENTER);
  text(messageFromServer,width/2,140);

  // Fade message from server to white
  newMessageColor = constrain(newMessageColor+1,0,255); 

  // Display Instructions
  fill(0);
  text(" Nickname: ",100,50);
  // Display text typed by user
  fill(0);
  text(typing,160,50);

  // If there is information available to read
  // (we know there is a message from the Server when there are greater than zero bytes available.)
  if (client.available() > 0) { 
    // Read it as a String
    messageFromServer = client.readString();
    // Set brightness to 0
    newMessageColor = 0;
  }
}

// Simple user keyboard input
void keyPressed() {  
  // If the return key is pressed, save the String and clear it
  if (key == '\n') {
    // When the user hits enter, write the sentence out to the Server
    println("ok");
  } else {
    typing = typing + key;
  }
}

GoToLoop

Well, you're gonna need a class (or lotsa arrays) to store info related to each new client! :-t
Also, save & load that database from disk!

jyciap11

can you give me an input to start?

jyciap11

up :(