import processing.net.*;

Client client;                          // the net client
boolean LastLeftValue, LastRightValue;

void setup()
{
  size(200, 200);
  client = new Client(this, "128.122.151.34", 10050);
  LastLeftValue = false;
  LastRightValue = false;
}

void draw()
{
  boolean LeftValue = false, RightValue = false;

  background(0);

  // Check for mouse events
  if (mousePressed == true) { 
    if ((mouseX > 0) && (mouseX < 100) && (mouseY > 0) && (mouseY < 200)) {
      LeftValue = true;
    }
    if ((mouseX > 100) && (mouseX < 200) && (mouseY > 0) && (mouseY < 200)) {
      RightValue = true;
    }
  } 
  else { 
    LeftValue = false;
    RightValue = false;
  } 

  // If changed, write to socket
  if (LeftValue && !LastLeftValue) {
  client.write("1");
  println(1);
  }
  if (!LeftValue && LastLeftValue) {
 client.write("2");
 println(2);
  }
  if (RightValue && !LastRightValue) {
  client.write("3");
  println(3);
  }
  if (!RightValue && LastRightValue) {
  client.write("4");
  println(4);
  }

  // Update for next iteration
  LastLeftValue = LeftValue;
  LastRightValue = RightValue;

  // Draw left rect
  if (LastLeftValue)
    fill(255);
  else
    fill(0);
  rect(0, 0, 100, 200);
  if (LastRightValue)
    fill(255);
  else
    fill(0);
  rect(100, 0, 100, 200);
}