nk20/note_kfet/static/js/konami.js

46 lines
1.2 KiB
JavaScript

/*
* Konami code support
*/
// Cursor denote the position in konami code
let cursor = 0
const KONAMI_CODE = [38, 38, 40, 40, 37, 39, 37, 39, 66, 65]
function afterKonami() {
// Load Rythm.js
var rythmScript = document.createElement('script')
rythmScript.setAttribute('src','//unpkg.com/rythm.js@2.2.5/rythm.min.js')
document.head.appendChild(rythmScript)
rythmScript.addEventListener('load', function() {
// Ker-Lyon audio courtesy of @adalan, ker-lyon.fr
const audioElement = new Audio('/static/song/konami.ogg')
audioElement.loop = true
audioElement.play()
const rythm = new Rythm()
rythm.connectExternalAudioElement(audioElement)
rythm.addRythm('card', 'pulse', 50, 50, {
min: 1,
max: 1.1
})
rythm.addRythm('d-flex', 'color', 50, 50, {
from: [64,64,64],
to:[128,64,128]
})
rythm.addRythm('nav-link', 'jump', 150, 50, {
min: 0,
max: 10
})
rythm.start()
});
}
// Register custom event
document.addEventListener('keydown', (e) => {
cursor = (e.keyCode == KONAMI_CODE[cursor]) ? cursor + 1 : 0;
if (cursor == KONAMI_CODE.length) {
afterKonami()
}
});