let dracos=[];

let stars=[];

​

let walk = [];

let enemy=[];

var x1 = 0;

var x2;

var scrollSpeed = 1.5;

let gameState='start';

let score = 0;

let lastFrame = 0;

let frameDelay = 2000;

let lastFrame1 = 0;

let frameDelay1 = 500;

let gameLost;

let lives=3;

let sensor1;

let sensor2;

let lives1=3;

function preload(){

  back1=loadImage("back2.png");

  walkSheet = loadImage('pinkie.png');

  draco = loadImage('draco.png');

  bgEnd=loadImage("gameover2.gif");

  bgImg=loadImage("start.jpeg");

  myFont=loadFont('Blomberg.otf');

  star=loadImage("point.png");

  //sounds

  song=loadSound('sound/song.mp3');

  sound1=loadSound("sound/lose.mp3");

  sound2=loadSound("sound/point.mp3");

  loseSound=loadSound("sound/losesound.mp3");

}

function setup() {

  createCanvas(600, 500);

  //crop sprites and store in array

  let w = int(walkSheet.width / 6);

  let h=int(walkSheet.height);

  for (let x = 0; x < 6; x++) {

    walk[x] = walkSheet.get(x * w, 0, w, h);

    } 

  //create the character

  pinkiePie= new PinkiePie(walk);

  x2 = width;

  song.loop();

​

}

function draw() {

  //draw screens according to game states

  if (gameState == 'start') {

    drawOpening();

  } else if (gameState == 'playing') {

    drawGame();

  } else if (gameState == 'lose') {

    drawLose();

  }

}

function keyPressed(){

  //when tab is pressed PinkiePie jumps

  if(key==" "){

    //pinkiePie.jump();

    setUpSerial();

  }

​

}

function mousePressed(){

  //to start the game

  if (gameState == 'start') {

    gameState = 'playing';

  } 

  //when lost, to restart

  else if (gameState=='lose') {

    restartGame();

    gameState='playing';

  }

​

}

​

function drawOpening(){

  background(bgImg);

  //instructions

  fill(204,0,102);

  textSize(25);

  text("Instructions:",230,25);

  //instructions

  fill(97,9,174);

  textSize(20);

  text("2.JUMP to Jump the Pinkie Pie", 140,80);

  if (!serialActive) {

    text("1.Press Space Bar to select Serial Port", 140, 50);

  } else {

    text("Connected", 20, 30);

  }

  text("3.Jump over the dracos&collect pink magic boxes", 140,110);

  text("4.You have 3 lives!Press Start when you are ready!", 140,140);

  text("5.Press Start when you are ready!", 140,170);

  //start button

  rectMode(CENTER);

  rect(300,240,200,100);

  fill(255,204,229);

  rect(300,240,160,60);

  textFont(myFont);

  textSize(50);

  fill(255,51,153);

  text("START",340,270,200,100);

}

function drawGame(){

  //parallax effect-scrolling backgrund

  image(back1, x1, 0, width, height);

  image(back1, x2, 0, width, height);

  x1 -= scrollSpeed;

  x2 -= scrollSpeed;

  if (x1 < -width){

    x1 = width;

  }

  if (x2 < -width){

    x2 = width;

  }

  //creates dracos

  if (millis() >= lastFrame + frameDelay) {

    dracos.push(new Draco());

    frameDelay = random(0.6, 1) * 2500;

    lastFrame = millis();

    score++;

  }

​

  //draw dracos and check for collision

  for(let d of dracos){

    d.move();

    d.display();

    if(pinkiePie.hits(d)){

      lives=(lives-1/17);

      lives1=round(lives);

      sound1.playMode('restart');

      sound1.play();

    }

    else{

      sound1.playMode('sustain');

    }

  }

  if(lives1<=0){

      gameState='lose';

      console.log("game over");

      //gameLost=true;

      loseSound.play();

    }

  //create stars for +1 points

  if (millis() >= lastFrame1 + frameDelay1) {

    stars.push(new Star());

    frameDelay1 = random(0.6, 1) * 10000;

    lastFrame1 = millis();

    score++;

  }

  //draw stars and when hit, add to score

  for(let s of stars){

    s.move();

    s.display();

    if(pinkiePie.hits(s)){

      s.remove();

      sound2.play();

    }

    }

  //draw and animate PinkiePie

  pinkiePie.display();

  pinkiePie.run();

  //score counter

  countScore();

  countlives();

​

}

function drawLose(){

  background(bgEnd);

  //lose message

  rectMode(CENTER);

  fill(255,204,229);

  rect(300,45,500,70);

  //rect(300,240,160,60);

  textSize(30);

  fill(204,0,102);

  text("You lost<_>! Mouse click to restart", 50,40);

  text("Score:"+score, 50, 80);

}

const countScore = () =>{

  //display the score;

  fill(0);

  noStroke();

  textSize(20);

  text("Score:" + score, 5, 20);

}

const countlives = () =>{

  //display the score;

  fill(0);

  noStroke();

  textSize(20);

  text("Lives:" + lives1, 300, 20);

}

//to restart the game and scores

const restartGame = () => {

  gameLost=false;

  score=0;

  lives=3;

  lives1=3;

  lastFrame=0;

  frameDelay=500;

  lastFrame1=0;

  frameDelay1=200;

  dracos = [];

  stars=[];

  pinkiePie= new PinkiePie(walk);

  new Draco();

  new Star();

  loop();

}

function readSerial(data) {

  ////////////////////////////////////

  //READ FROM ARDUINO HERE

  ////////////////////////////////////

  //console.log("data"+data);

  if (data != null) {

    //for button

    //if(data==0)

    let fromArduino = split(trim(data), ",");

    // if the right length, then proceed

    if (fromArduino.length == 2) {

      sensor1= fromArduino[0];

      sensor2 = fromArduino[1];

      console.log("s1 "+sensor1);

      console.log("s2 "+sensor2);

      if((sensor1 <= 1) && (sensor2<=1)){

        pinkiePie.jump();

      }

    }

  }

}