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quiz.js
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quiz.js
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// Initialization of global variables
const questionArr = ["Which champion is primarily a top laner?", "Which champion is primarily a jungler?",
"Which champion is primarily a mid laner?", "Which champion is primarily a bot laner?",
"Which champion is primarily a support?"];
const roles = {
"top": ["Tryndamere", "Akali", "Aatrox", "Cho'Gath", "Darius", "Fiora", "Gangplank", "Garen", "Illaoi", "Kled"],
"jungle": ["Kayn", "Nunu and Willump", "Elise", "Amumu", "Evelynn", "Gragas", "Graves", "Karthus", "Kindred", "Nidalee"],
"mid": ["Ryze", "Zed", "Azir", "Galio", "Cassiopeia", "Katarina", "Kassadin", "Qiyana", "Orianna", "Syndra"],
"bot": ["Jhin", "Draven", "Miss Fortune", "Ezreal", "Samira", "Sivir", "Ashe", "Kaisa", "Vayne", "Kog'Maw"],
"support": ["Sona", "Blitzcrank", "Thresh", "Pyke", "Zilean", "Yuumi", "Nami", "Janna", "Braum", "Leona"]
};
const regex_array = ["top", "jungle", "mid", "bot", "support"];
// Create function to generate a template for a MC button selection
const targetNode = document.getElementById('mc_container');
var score = 0;
var total;
function generate_mc() {
total = roles.top.length;
for (const [key, value] of Object.entries(roles)){
shuffle(value);
}
for (let i = 0; i < total; i++){
multipleChoiceTemplate(i);
};
};
// generate multiple choice section
function multipleChoiceTemplate(counter) {
let container_buttons = [];
let question_pick = getRndInteger(0, 4);
let q_con = document.createElement("container");
let q_sec = document.createElement("section");
let q_header = document.createElement("h2");
let q_hr = document.createElement('hr');
q_header.innerHTML = "QUESTION " + (counter + 1);
let q_h3 = document.createElement("h3");
q_h3.innerHTML = questionArr[question_pick];
q_h3.classList.add("q" + counter);
let q_h4 = document.createElement("h4");
targetNode.append(q_con);
q_con.append(q_sec);
q_con.classList.add("container");
q_sec.append(q_header);
q_sec.classList.add("section");
q_header.classList.add("h2");
q_sec.append(q_hr);
q_sec.append(q_h3);
q_sec.append(q_h4);
Object.keys(roles).forEach((tName) =>
{
let opt = document.createElement("button");
opt.classList.add("button");
opt.classList.add("btngrp" + counter);
opt.innerHTML = roles[tName][counter];
opt.setAttribute('name', roles[tName][counter]);
opt.onclick = function() {buttonLogic(opt, counter)};
container_buttons.push(opt);
})
shuffle(container_buttons);
for (const button of container_buttons){
q_sec.append(button);
}
}
// Function returns a random integer between min and max inclusive
function getRndInteger(min, max) {
return Math.floor(Math.random() * (max - min + 1)) + min;
}
// Function shuffles array; for randomizing question boxes
function shuffle(array) {
let currentIndex = array.length, randomIndex;
// While there remain elements to shuffle.
while (currentIndex != 0) {
// Pick a remaining element.
randomIndex = Math.floor(Math.random() * currentIndex);
currentIndex--;
// And swap it with the current element.
[array[currentIndex], array[randomIndex]] = [
array[randomIndex], array[currentIndex]];
}
return array;
}
// Logic for MC buttons
function buttonLogic(target, id) {
var qTitle = document.getElementsByClassName("q" + id);
var buttons = document.getElementsByClassName("btngrp" + id);
target.style.background = "red";
for (const regex of regex_array) {
const reg = new RegExp(regex);
if (reg.test(qTitle[0].innerHTML) == true) {
if (roles[regex].includes(target.innerHTML)){
target.disabled = true;
target.style.background = "green";
score = score + 1;
}
}
};
for (let i = 0; i <= buttons.length; i++){
buttons[i].disabled = true;
results();
}
};
// results function .. appears on all disabled
function results() {
var all_disabled = true;
var list = []
$('[class]').each(function() {
this.classList.forEach(function(className) {
if (!className.indexOf('btngrp') && !list.includes(className)) {
list.push(className)
}
})
})
for (const item of list){
var elements = document.getElementsByClassName(item);
for (const element of elements) {
if (element.disabled != true)
{
all_disabled = false;
}
}
}
if (all_disabled == true){
document.getElementById("answer_cont").hidden = false;
document.getElementById("answers").innerHTML = score + "/10";
document.getElementById("answers").hidden = false;
document.getElementById("refresh").hidden = false;
}
}
// cleans window
function clean_window(){
parent = document.getElementById("mc_container");
while (parent.firstChild) {
parent.removeChild(parent.firstChild);
}
all_disabled = false;
score = 0;
document.getElementById("answer_cont").hidden = true;
document.getElementById("answers").innerHTML = score + "/10";
document.getElementById("answers").hidden = true;
document.getElementById("refresh").hidden = true;
window.scrollTo({top: 0, behavior: 'smooth'});
}
// refreshes the mc .
function refreshButtons(){
clean_window();
generate_mc();
}
window.addEventListener('load', (event) => {
generate_mc();
});