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script.js
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script.js
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let min = 1;
let max = 20;
let num1;
let num2;
let sum;
let ans;
let level = 1;
let counter = 0;
let tries = 5;
let score = 0;
let hiScore = 0;
function init() {
if (localStorage.getItem('level') != null && localStorage.getItem('max') != null && localStorage.getItem('tries')) {
loadSaved();
}
generateRandom();
updateTries();
uptdateScore();
updateHiScore();
}
function updateHiScore() {
document.getElementById('hiScore').innerHTML = hiScore;
}
function loadSaved() {
let savedLevel = localStorage.getItem('level');
let savedMax = localStorage.getItem('max');
let savedTries = localStorage.getItem('tries');
let savedScore = localStorage.getItem('score');
let savedHiScore = localStorage.getItem('hiScore');
hiScore = JSON.parse(savedHiScore);
score = JSON.parse(savedScore);
level = JSON.parse(savedLevel);
max = JSON.parse(savedMax);
tries = JSON.parse(savedTries);
}
function startNewGame() {
document.getElementById('startScreen').classList.add('d-none');
level = 1;
max = 20;
tries = 5;
score = 0;
let savedScore = JSON.stringify(score);
localStorage.setItem('score', savedScore);
let savedMax = JSON.stringify(max);
localStorage.setItem('max', savedMax);
let savedLevel = JSON.stringify(level);
localStorage.setItem('level', savedLevel);
let savedTries = JSON.stringify(tries);
localStorage.setItem('tries', savedTries);
init();
}
function loadSaveGame() {
loadSaved();
document.getElementById('startScreen').classList.add('d-none');
}
function generateRandom() {
min = Math.ceil(min);
max = Math.floor(max);
num1 = Math.floor(Math.random() * (max - min + 1)) + min;
num2 = Math.floor(Math.random() * (max - min + 1)) + min;
document.getElementById('quest').innerHTML = num1 + '+' + num2;
document.getElementById('level').innerHTML = level;
}
function uptdateScore() {
document.getElementById('score').innerHTML = score;
}
function updateTries() {
document.getElementById('tries').innerHTML = tries;
}
function checkAns() {
let correct = document.getElementById('correct');
let incorrect = document.getElementById('incorrect');
let answerInput = document.getElementById('ans');
sum = num1 + num2;
ans = +answerInput.value;
if (sum === ans) {
answerInput.value = null;
correct.classList.remove('d-none');
generateRandom();
score += 10;
let savedScore = JSON.stringify(score);
localStorage.setItem('score', savedScore);
uptdateScore();
if (counter < 2) {
counter++;
} else {
counter = 1;
level++;
max += 20;
score += 15;
let savedMax = JSON.stringify(max);
localStorage.setItem('max', savedMax);
let savedLevel = JSON.stringify(level);
localStorage.setItem('level', savedLevel);
uptdateScore();
}
setTimeout(() => {
correct.classList.add('d-none');
}, 3000);
max += 5;
if (score > hiScore) {
hiScore = score;
let savedHiScore = JSON.stringify(hiScore);
localStorage.setItem('hiScore', savedHiScore);
}
} else {
answerInput.value = null;
score -= 5
incorrect.classList.remove('d-none');
setTimeout(() => {
incorrect.classList.add('d-none');
}, 3000);
tries--;
let savedTries = JSON.stringify(tries);
localStorage.setItem('tries', savedTries)
updateTries();
uptdateScore();
if (tries < 1) {
document.getElementById('restart').classList.remove('d-none');
setTimeout(() => {
document.getElementById('restart').classList.add('d-none');
}, 3000);
startNewGame();
}
}
}
document.addEventListener("keydown", e => {
const k = e.key;
if (k == 'Enter') {
checkAns();
}
});