//The images and the programming took me a reeeeaaallly long time, but I learned alot about Processing and Illustrator
//The notes below are as much for your benefit as mine, as I messed up every single line a dozen times or more
//Sorry if my notes are excessive, if I ever want to refer back I want to remember exactly what I did
//Without further ado, my second attempt at programming

//have to declare variables here before you can call them later
PImage lid, box, hands; //can list multiples variables of same type, use commas
PVector lidPosition = new PVector(0, 0); //vector sets a pt on your grid
float angle; // angle variable, affect it below, float=decimals
float speed = 2; //played around with speed rates, 2 just looks best
boolean left, right; //booleans are false by default

void setup() {
  size(1000, 800);
  frameRate (60); //chosen by trial and error
  hands = loadImage("hand.gif");
  box = loadImage("box.gif"); //this image contains a looping graphic pattern
  lid = loadImage("panels2.gif");
}

void draw() { //draw function draws at the start of every frame
  background (#FFFFFF); //this redraws the background, covering up the frames behind it
  imageMode(CENTER); //changes the origin point to the center of the image, good for rotation/radial drawings

  for (int yInt = 0; yInt < height; yInt+=2) {
    float r = random(255);
    stroke(r);
    line(0, yInt, width, yInt);
  }

  moveLid(); //fuuuunnnctions! state them here so they're executed in draw
  tiltBox();
}


//The below excerpt is to clarify how += works compared to =+
//If there is a name for the weird logic/math symbols or a reference page for them, I'd love to know!

/*int speed;
 speed = 10; //sets value to 10
 spped = 25; //replaces value to 25
 speed = speed + 15 //speed 1 is slot/variable, speed 2 is the value, add 15 to the value of speed (25), so 25+15 = 40
 0 = 0 + 15 //visual example of redundancy
 speed =+ 15; // just states positive integer 15
 speed += 15; // adds the 15 to the value in the variable */

void moveLid() // moveLid goes before tiltBox, because I want this to be smoother than the tilting, which is tied to keyboard lag
{
  if (right && lidPosition.x <= 45) // don't have to type ==true because when you check booleans, by default you're looking for if it's true
    lidPosition.x+= speed; 

  if (left && lidPosition.x >= -45) // && checks 2 conditions for being true, so the lid doesn't go too far, it will stop executing when it reaches limit
    lidPosition.x -= speed;
}

void tiltBox() //pushMatrix basically starts funking around with your grid/layout, and popMatrix ends its effect
{
  pushMatrix();
  translate(500, 400);
  rotate(radians(angle));
  image (hands, 0, 0);
  image (box, 0, 0);
  image(lid, lidPosition.x, lidPosition.y); // . means you're accessing something inside it, Processing understands x and y without clarification
  popMatrix();
}

void keyPressed()
{
  switch(keyCode) // switch is the same as writing else if, only 1 can be true, checks for 1 and moves on
  { //it's going to continuously be checking the below options
  case LEFT:
    if (left == false) //because I only want the image to rotate once on the click
    {//if left = false, move on to the break, and continue checking for right click and releases... if true, apply below effects and break
      left = true;
      angle = -10;
    }
    break; // stops a shallow instruction, first one it checks / last one executed, otherwise switch would keep executing everything below
  case RIGHT:
    if (right == false)
    { 
      right = true;
      angle = 10;
    }
    break;
  }
}

void keyReleased()
{
  switch(keyCode)
  {
  case LEFT:
    if (left) //if the last key released was LEFT, don't worry about it program, move on!
    {//if the last key released was not LEFT, set angle to 0
      left = false;
      angle = 0;
    }
    break;

  case RIGHT:
    {  
      right = false;
      angle = 0;
    }
    break;
  }
}

//Thank god it's done and working! 
//Big thanks to my classmates with coding experience, who helped me make heads/tails of this switch business!
//I'll be paying special attention to interactivity as it comes up
//And maybe not set my expectations so high that I waste hours going in circles (haha, pun)
//Seriously though, that box spun aimlessly for 2 days