// http://codingtra.in

// http://patreon.com/codingtrain

// Code for: https://youtu.be/40Me1-yAtTc

​

// The snake

var s;

// The scale of the grid

var scl = 20;

var cols;

var rows;

​

var eatSound;

var startOverSound;

var hello;

var music;

​

var fr = 3;

​

// This is the food location

var food;

​

var musicRate = 1;

​

function preload() {

  eatSound = loadSound("sounds/Alert/Alert - 06.mp3");

  startOverSound = loadSound("sounds/Voice/Voice - Cartoon Laugh 01.mp3");

  hello = loadSound("sounds/Voice/Voice - Hello 01.mp3");

  music = loadSound("sounds/Music/Music - 01.mp3");

}

​

function setup() {

  createCanvas(300, 300);

  music.play();

  //hello.playMode('sustain');

  colorMode(HSB, 255);

  noStroke();

  cols = floor(width / scl);

  rows = floor(height / scl);

​

  s = new Snake();

  frameRate(fr);

​

  // Pick a food location

  pickLocation();

​

}

​

// Pick a food location

function pickLocation() {

  food = createVector(floor(random(cols)), floor(random(rows)));

  food.mult(scl);

}

​

// Animation loop

function draw() {

  background(51);

​

  // If the snake eats the food

  if (s.eat(food)) {

    eatSound.play();

    fr += 2;

    musicRate += 0.05;

    music.rate(musicRate);

    frameRate(fr);

    pickLocation();

  }

​

  // Check if the snake hits itself or a wall

  s.death();

  // Update snake

  s.update();

  // Draw snake

  s.show();

​

​

  fill(150, 255, 255);

  rect(food.x, food.y, scl, scl);

}

​

​

​

​

// Moving the snake

function keyPressed() {

  //if (!hello.isPlaying()) {

  //hello.play();

  //}

​

  if (keyCode === UP_ARROW) {

    s.dir(0, -1);

  } else if (keyCode === DOWN_ARROW) {

    s.dir(0, 1);

  } else if (keyCode === RIGHT_ARROW) {

    s.dir(1, 0);

  } else if (keyCode === LEFT_ARROW) {

    s.dir(-1, 0);

  }

​

  if (key == ' ') {

    s.total++;

  }

}