// Project Title: Pond Scum

// Sources used

// Coding Challenge #115: Snake Game Redux by Daniel Shiffman

// https://youtu.be/OMoVcohRgZA

​

let header;

let snake;

let rez = 20;

let food;

let w;

let h;

let bg;

let song1;

let song2;

let song3;

​

// preload images used in sketch

function preload() {

  frog = loadImage("images/frog.png");

  song2 = loadSound("game_music/song2.mp3");

  song3 = loadSound("game_music/song3.mp3");

}

​

function setup() {

  canvas = createCanvas(500, 500);

  song1 = loadSound("game_music/song1.mp3", loaded);

​

  canvas.parent("canvas_placement"); // placement for interactive window

​

  w = floor(width / rez);

  h = floor(height / rez);

  frameRate(1);

  snake = new Snake(); // create snake instance

  foodLocation(); // call foodLocation() function

  bg = "#fff6d3"; // background color

  //bg = loadImage('images/self_portrait.png');

​

  // transparency_slider = createSlider(0, 255, 255);

  // transparency_slider.parent('slider_placement');

  button = createButton("Music 1");

  button.parent("song_switcher");

​

  button.mousePressed(togglePlaying);

​

  function loaded() {

    song1.play();

  }

}

// toggele between game songs!

function togglePlaying() {

  if (song1.isPlaying()) {

    song1.pause();

    song2.play();

    song2.setVolume(0.3);

    button.html("Music 2");

  } else if (song2.isPlaying()) {

    song2.pause();

    song3.play();

    song3.setVolume(0.3);

    button.html("Music 3");

  } else {

    song3.pause();

    song1.play();

    song1.setVolume(0.3);

    button.html("Music 1");

  }

}

​

function foodLocation() {

  let x = floor(random(w));

  let y = floor(random(h));

  food = createVector(x, y); // create food vector

}

​

// defining how to move

function keyPressed() {

  if (keyCode === LEFT_ARROW) {

    snake.setDir(-1, 0);

  } else if (keyCode === RIGHT_ARROW) {

    snake.setDir(1, 0);

  } else if (keyCode === DOWN_ARROW) {

    snake.setDir(0, 1);

  } else if (keyCode === UP_ARROW) {

    snake.setDir(0, -1);

  } else if (key == " ") {

    snake.grow();

  }

}

​

function draw() {

  background(bg);

  scale(rez);

  // check each loop

  // spawn more a new food every time one is eaten

  if (snake.eat(food)) {

    foodLocation();

  }

  // spawn food

  image(frog, food.x, food.y, 2, 2);

  snake.update();

  snake.show(frog);

​

  // Display stats and game over when game ends!

  if (snake.endGame()) {

    textSize(2);

    background("#1e847f");

    print("You Died!"); // prints to Console!

    fill("white");

    text("GAME OVER", 5, 12);

    text("Your snake length: ", 3, 17);

    text(snake.body.length, 21, 17);

    noLoop();

    return;

  }

  // display score count!

  strokeWeight(0.2);

  stroke("Black");

  textSize(2);

  fill("White");

  text(snake.body.length, 23, 2);

}

​