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script.js
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const dino = document.querySelector('.dino');
const background = document.querySelector('.background');
const inicioJogo = document.querySelector('#inicioJogo');
const fimJogo = document.querySelector('#fimJogo');
let isJumping = false;
let isGameOver = false;
let start = false;
let position = 0;
function handleKeyUp(event) {
if (event.keyCode === 32) {
if (!isJumping) {
jump();
}
}
}
function jump() {
if (!start) {
start = true;
inicioJogo.style.display = 'none';
}
isJumping = true;
if (!isGameOver) {
let upInterval = setInterval(() => {
if (position >= 150) {
// Descendo
clearInterval(upInterval);
let downInterval = setInterval(() => {
if (position <= 0) {
clearInterval(downInterval);
isJumping = false;
} else {
position -= 20;
dino.style.bottom = position + 'px';
}
}, 20);
} else {
// Subindo
position += 20;
dino.style.bottom = position + 'px';
}
}, 20);
}
}
function createCactus() {
const cactus = document.createElement('div');
let cactusPosition = 1000;
let randomTime = Math.random() * 6000;
if (isGameOver) return;
cactus.classList.add('cactus');
background.appendChild(cactus);
cactus.style.left = cactusPosition + 'px';
let leftTimer = setInterval(() => {
if (start) {
if (isGameOver) {
clearInterval(leftTimer);
fimJogo.style.display = 'block';
} else if (cactusPosition > 0 && cactusPosition < 60 && position < 60) {
// Game over
clearInterval(leftTimer);
isGameOver = true;
} else if (cactusPosition < -60) {
// Saiu da tela
clearInterval(leftTimer);
background.removeChild(cactus);
} else {
cactusPosition -= 10;
cactus.style.left = cactusPosition + 'px';
}
}
}, 20);
setTimeout(createCactus, randomTime);
}
createCactus();
document.addEventListener('keyup', handleKeyUp);