game.js

var buttonColours = ["red", "green", "blue", "yellow"];
var gamePattern = [];
var userClickedPattern = [];
var started = false;
var level = 0;

$(document).keypress(function () {
    if (!started) {
        $("#level-title").text("Level " + level);
        nextSequence();
        started = true;
    }
});


$(".btn").click(function () {

    var userChosenColour = $(this).attr("id");
    userClickedPattern.push(userChosenColour);

    playSound(userChosenColour);
    animatePress(userChosenColour);

    //2. Call checkAnswer() after a user has clicked and chosen their answer, passing in the index of the last answer in the user's sequence.
    checkAnswer(userClickedPattern.length - 1);
});



function nextSequence() {
    userClickedPattern = [];

    level++;
    $("#level-title").text("Level " + level);
    var randomNumber = Math.floor(Math.random() * 4);
    var randomChosenColour = buttonColours[randomNumber];
    gamePattern.push(randomChosenColour);

    $("#" + randomChosenColour).fadeOut(100).fadeIn(100).fadeOut(100).fadeIn(100);
    playSound(randomChosenColour);
}




function playSound(name) {
    var audio = new Audio("sounds/" + name + ".mp3");
    audio.play();
}


function animatePress(currentColour) {
    $("#" + currentColour).addClass("pressed");

    setTimeout(function () {
        $("#" + currentColour).removeClass("pressed");
    }, 100);
}





function checkAnswer(currentLevel) {
    if (gamePattern[currentLevel] === userClickedPattern[currentLevel]) {

        console.log("success");

        if (userClickedPattern.length === gamePattern.length) {

            setTimeout(function () {
                nextSequence();
            }, 1000);
            
        }
    }
    else {
        
        var audio = new Audio("sounds/" + "wrong" + ".mp3");
        audio.play();
        $("body").addClass("game-over");
        setTimeout(function(){
            $("body").removeClass("game-over");
        },200);
       $("h1").text("Game Over, Press Any Key to Restart")

       startOver();
    }
}

function startOver(){
    level = 0;
    gamePattern = [];
    started = false;
}