processing_udp_button.pde

/**
 * ControlP5 Button
 * this example shows how to create buttons with controlP5.
 * 
 * find a list of public methods available for the Button Controller 
 * at the bottom of this sketch's source code
 *
 * by Andreas Schlegel, 2012
 * www.sojamo.de/libraries/controlp5
 *
 */
 
import controlP5.*;
import hypermedia.net.*;

UDP udp;  // define the UDP object

String ip       = "192.168.43.xxxx";  // the remote IP address
int port        = 9998;    // the destination port

ControlP5 cp5;

int myColor = color(255);

int c1,c2;

float n,n1;


void setup() {
  size(400,400);
  udp = new UDP( this, 11111 );
  //udp.log( true );     // <-- printout the connection activity
  udp.listen( true );
    
  noStroke();
  cp5 = new ControlP5(this);
  
  // create a new button with name 'buttonA'
  cp5.addButton("Button_ON")
     .setValue(0)
     .setPosition(100,130)
     .setSize(200,49)
     ;
  
  // and add another 2 buttons
  cp5.addButton("Button_OFF")
     .setValue(100)
     .setPosition(100,210)
     .setSize(200,49)
     ;
     
  //cp5.addButton("colorC")
  //   .setPosition(100,210)
  //   .setSize(200,19)
  //   .setValue(0)
  //   ;



}

void draw() {
  background(myColor);
  myColor = lerpColor(c1,c2,n);
  n += (1-n)* 0.1; 
}

public void controlEvent(ControlEvent theEvent) {
  println(theEvent.getController().getName());
  n = 0;
}

// function colorA will receive changes from 
// controller with name colorA
public void Button_ON(int theValue) {
  //byte[] data = new byte[3];  // the data to be send
  //data[0]=byte(0);
  //data[1]=byte(160);
  //data[2]=byte(100);
  udp.send( "H", ip, port );

  println("a button event from colorA: "+theValue);
  c1 = c2;
  c2 = color(0,160,100);
}

// function colorB will receive changes from 
// controller with name colorB
public void Button_OFF(int theValue) {
  println("a button event from colorB: "+theValue);
  c1 = c2;
  c2 = color(150,0,0);
  
  //byte[] data = new byte[3];  // the data to be send
  //data[0]=byte(150);
  //data[1]=byte(0);
  //data[2]=byte(0);
  //udp.send( data, ip, port );
  udp.send( "L", ip, port );
  
  
}

// function colorC will receive changes from 
// controller with name colorC
public void colorC(int theValue) {
  println("a button event from colorC: "+theValue);
  c1 = c2;
  c2 = color(255,255,0);
  
  //byte[] data = new byte[3];  // the data to be send
  //data[0]=byte(255);
  //data[1]=byte(255);
  //data[2]=byte(0);
 // udp.send( data, ip, port );
}