Arduino Manipulates Processing

gistfile1.pde

// * Simple Arduino Draw
 
import processing.serial.*;
 
Serial myPort;  // Create object from Serial class
int val;      // Data received from the serial port

void setup() 
{
  size(800, 500);
  // I know that the first port in the serial list on my mac
  // is always my FTDI adaptor, so I open Serial.list()[0].
  // On Windows machines, this generally opens COM1.
  // Open whatever port is the one you're using.
  String portName = Serial.list()[7];
  myPort = new Serial(this, portName, 9600);
  background(0,125,100);
}
 
void draw()
{
  if ( myPort.available() > 0) {      // If data is available,
    val = myPort.read();               // read it and store it in val
  }
               
  if (val == 1) {                        // If the serial value is 0,
    ellipseMode(CENTER);                //draw ellipse from center
    fill(random(255),255,255,150);
    ellipse(random(width), random(width), 100,100);                 
  } 
  else {                                 // If the serial value is not 0,
    pushMatrix();
    translate(width/2, 0);
    rectMode(CENTER);
    rotate(QUARTER_PI);
    fill(255,255,random(255),150);
    rect(random(width), random(width), 50,50);
    popMatrix();    
  }
  
}