/**

 * Simple Read - Combined with Neil Gershenfeld's hello.light.45.py

 * http://academy.cba.mit.edu/classes/input_devices/light/hello.light.45.py

 * adjusted values pulled from Neil's python visualazition program to make

 * sense of high and low readings.

 *

 * Read data from the serial port  and change the color of a rectangle

 * when the phototransistor connected to the hello light board is receiving

 * varing levels of light.

 * This example works with the Wiring / Arduino program that follows below.

 */

import processing.serial.*;

//VARIABLE DEFINITION

Serial myPort;  // Create object from Serial class

int val;      // Data received from the serial port

int sensorData; // Data recieved from the serial port with 1,2,3,4 framing numbers filtered out

int valorbueno;

boolean dibujado = false;

PImage imget;

float x,y,a,s=0.0;

boolean pajarogrande=false;

int tiempoahora=0,tiempoantes=0;

boolean hadchanged=false;

//////drawing the stars

void estrellas(){

  //only 30 stars was drawn, all rancomly positioned inside the canvas

  for (int i=0; i <= 30; i++){     

      stroke(255);

      point(random(width),random(height));

  }

}

//drawing the birds

void pajaro(){

    //draw a bird with two states, one bigger and one smaller

    translate(random(10),random(10));     //move the bird randomly in a 10x10 square

  if (pajarogrande){          //ask if i draw the big shape of the bird

    //draw the smaller bird

    scale (1,0.9);    //% of scaling in x and y

    pajarogrande=false;    

  }

  else{

      //draw the bigger bird

      scale (1,1.1);

      pajarogrande = true;

  }

  fill(255);

  line(100,100,110,110);  //left wing

  line(110,110,120,100);  //right wing

//  delay (100);    //avoid the epileptic movement in the bird

}

///drawing the sun

void sol(){

  fill(0,191,255);    //blue

  rect(0,0,700,400);    //draw the sky

  fill(255,255,0);  //yellow

  ellipse(300,200,300,300);    //draw the sun 

  pajaro();        //draw a bird

}

////drawing the moon

void luna(){

      background(0);

      fill(255);                 // white

      ellipse(300,200,300,300);  // draw a circle

      fill(0);                    // black fill

      stroke(0);                  // black stroke

      ellipse(200,100,300,300);    // draw the missing part of the moon circle

       estrellas();            //draw the stars

// put a image in the canvas       

      if (x<=width){        //if the image isnt aoutside the canvas

          y=y-2;            // y movement in 2 pixels by frame

          x=x+4;          // x movement in 4 pixels by frame

          translate(x,y);         // move the position of the below draw or image from the las frame

          image(imget,-100,400);   // show a GIF in the canvas. -100,400 is the initial position of the image

      }

}

///////////////////////MAIN PROGRAM/////////////////////////

void setup()

{

  size(700, 400);  //Anna Kaziunas code for hello.light

  // 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()[0];

  myPort = new Serial(this, portName, 9600);

  imget = loadImage("et.gif");  // variable that contains a image file

}

void draw()

{

  if (myPort.available() > 0) {    // If data is available

    val = myPort.read();           // read it and store it in val

    if (val > 4) {                // Filter out the framing numbers: 1,2,3,4

       println("The actualVal is " + val);  //drop the valor in the terminal to check

       valorbueno = val;          //i will use a variable with usable valors. 1,2,3,4 didnt store here.

   }

    if (valorbueno < 160) {    // if its lightly. This valor must change to fit the needs

             sol();             // draw the sun         

    }

    else {                      

         luna();    //  draw the moon

    }

  }

}