redwood_web_exercises/konami-code.html at master · CodeupClassroom/redwood_web_exercises · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Konami Game</title>
</head>
<body>
<header>
    Username: Luis
    Score: 1000
    Life #: <span id="life">1</span>
</header>

<script
    src="https://code.jquery.com/jquery-3.2.1.min.js"
    integrity="sha256-hwg4gsxgFZhOsEEamdOYGBf13FyQuiTwlAQgxVSNgt4="
    crossorigin="anonymous"
>
</script>
<script>
    "use strict";

    var konamiCode = [
        38,
        38,
        40,
        40,
        37,
        39,
        37,
        39,
        66,
        65,
        13
    ];
    var i = 0;
    var lives = parseInt($("#life").text());
    // if the Konami code is correct
    // I'll change the value of the element #life to 30, change the font color to green make it
    // bold
    // If the konami code is wrong I'll change the #life element font-color to gray, make it bold

    $(document).keyup(function (event) {
        if (event.keyCode !== konamiCode[i]) {
            $("#life").css("color", "blue").css("font-weight", "bold");
            i = 0;
        } else {
            i++;
        }

        // if the code is complete ?
        if (konamiCode.length  === i) {
            lives += 30;
            $("#life").html(lives + " lives").css("color", "green").css("font-weight", "bold");
            i = 0;
        }
    });
</script>
</body>
</html>