Processing sketch for P5LIVE osc_setup demo

p5live_osc_setup

/*  
 p5live_osc_setup // cc teddavis.org 2019
 Requires offline nodejs/npm installation of P5LIVE 
 Requires oscP5 library  
 */

int tc = 10, rate = 5;
int mx = 0, my = 0, px = 0, py = 0;
PGraphics pg;

import oscP5.*;
import netP5.*;

OscP5 oscP5;
NetAddress myRemoteLocation;

void setup() {
  size(400, 400);
  frameRate(25);
  pg = createGraphics(width, height);

  /* start oscP5, listening for incoming messages */
  oscP5 = new OscP5(this, 12001);

  /* start oscP5, sending outgoing messages */
  myRemoteLocation = new NetAddress("127.0.0.1", 12000);
}


void draw() {
  background(0);

  // draw outgoing pings
  if (frameCount%rate==0) {
    randomPing();
  }

  // draw incoming msgs
  image(pg, 0, 0);
}


void randomPing() {
  int rval = floor(random(tc));
  for (int i=0; i<tc; i++) {
    if (i == rval) {
      fill(255);
      rect(map(i, 0, tc, 0, width), 0, width/tc, height);
    }
  }
  OscMessage myMessage = new OscMessage("/"+rval);
  myMessage.add(random(1)); /* add an int to the osc message */

  /* send the message */
  oscP5.send(myMessage, myRemoteLocation);
}


/* incoming osc message are forwarded to the oscEvent method. */
void oscEvent(OscMessage theOscMessage) {
  /* print the address pattern and the typetag of the received OscMessage */
  //print("### received an osc message.");
  //print(" addrpattern: "+theOscMessage.addrPattern());
  //println(" typetag: "+theOscMessage.typetag());

  // scale input to fit window
  if (theOscMessage.addrPattern().equals("/screenSize")) {
    int w = theOscMessage.get(0).intValue()/4;
    int h = theOscMessage.get(1).intValue()/4;
    frame.setSize(w, h);
  } else if (theOscMessage.addrPattern().equals("/p5js")) {
    mx = theOscMessage.get(0).intValue()/4;
    my = theOscMessage.get(1).intValue()/4;
    pg.beginDraw();
    pg.stroke(255);
    pg.line(mx, my, px, py);
    pg.endDraw();
    px = mx;
    py = my;
  } else if (theOscMessage.addrPattern().equals("/clear")) {
    pg = createGraphics(width, height);
  }
}