// Learning Processing
  // Daniel Shiffman
  // http://www.learningprocessing.com
  
  // Example 19-5: Client reading values as rotation value
  
  // Import the net libraries
  import processing.net.*;
  // Declare a client
  Client client;
  // The data we will read from the server
  int data;
  
  void setup() {
    size(200,200);
    smooth();
    // Create the Client
    client = new Client(this,"127.0.0.1", 5204);
  }
  
  void draw() {
     // Read data
    if (client.available() > 0) {
      data = client.read();
    }
    
    background(255);
    stroke(0);
    fill(175);
    translate(width/2,height/2);
    
    // The incoming data is used to rotate a square.
    float theta = (data/255.0) * TWO_PI;
    rotate(theta); 
    
    rectMode(CENTER);
    rect(0,0,64,64);
  }