Stargazer Javascript Game

HTML

CSS

body {
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
    background-color: #000;
    overflow: hidden; /* Evita el desplazamiento de la página */
}

#startMenu {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.8); /* Fondo semi-transparente */
    z-index: 999; /* Encima de todo */
}

#menuTitle {
    color: #fff;
    font-size: 24px;
    margin-bottom: 20px;
}

#startMenu button {
    padding: 10px 20px;
    margin-bottom: 10px;
    font-size: 18px;
    background-color: #fff;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

#game {
    display: none; /* Ocultar el juego al principio */
    position: relative;
    width: 100vw; /* Usa toda la vista de la ventana */
    height: 100vh; /* Usa toda la vista de la ventana */
    background-color: #000;
    border-bottom: 2px solid #fff; /* Línea blanca en la parte inferior */
}

#player {
    position: absolute;
    width: 20px;
    height: 20px;
    background-color: #fff;
    bottom: 50px;
    left: 50%;
    transform: translateX(-50%);
}

#stars {
    position: absolute;
}

.star {
    position: absolute;
    width: 20px;
    height: 20px;
    background-color: #ffff00;
    border-radius: 50%;
}

#obstacles {
    position: absolute;
}

.obstacle {
    position: absolute;
    background-color: #ff0000;
}

#bottomLine {
    position: absolute;
    width: 100%;
    height: 2px;
    background-color: #fff;
    bottom: 0;
}

#score {
    position: absolute;
    top: 10px;
    left: 10px;
    color: #fff;
}

#lives {
    position: absolute;
    top: 10px;
    right: 10px;
    color: #fff;
}

#gameOver {
    display: none;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: #fff;
    font-size: 24px;
}

JS

document.addEventListener('DOMContentLoaded', function () {
    const startMenu = document.getElementById('startMenu');
    const gameContainer = document.getElementById('game');
    const player = document.getElementById('player');
    const starsContainer = document.getElementById('stars');
    const scoreValue = document.getElementById('scoreValue');
    const livesValue = document.getElementById('livesValue');
    const gameOverText = document.getElementById('gameOver');
    const finalScore = document.getElementById('finalScore');

let score, lives, gameSpeed, gameIsOver, gameLoopInterval;

function updateScore() {
        score++;
        scoreValue.textContent = score;
    }

function updateLives() {
        lives--;
        livesValue.textContent = lives;

if (lives <= 0) {
            gameOver();
        }
    }

// Agregar eventos de clic a los botones del menú de inicio
    document.getElementById('easyBtn').addEventListener('click', function () {
        startGame('easy');
    });

document.getElementById('mediumBtn').addEventListener('click', function () {
        startGame('medium');
    });

document.getElementById('hardBtn').addEventListener('click', function () {
        startGame('hard');
    });

function createStar() {
        const star = document.createElement('div');
        star.className = 'star';
        star.style.left = `${Math.random() * (window.innerWidth - 20)}px`;
        star.style.top = '0'; // Start from top
        starsContainer.appendChild(star);

const fallInterval = setInterval(() => {
            if (!gameIsOver) {
                const starTop = parseInt(window.getComputedStyle(star).getPropertyValue('top'));

if (starTop >= window.innerHeight) {
                    clearInterval(fallInterval);
                    star.remove();
                    updateLives();
                }

const starBounds = star.getBoundingClientRect();
                const playerBounds = player.getBoundingClientRect();

if (
                    starBounds.left < playerBounds.right &&
                    starBounds.right > playerBounds.left &&
                    starBounds.top < playerBounds.bottom &&
                    starBounds.bottom > playerBounds.top
                ) {
                    updateScore();
                    star.remove();
                }

star.style.top = `${starTop + gameSpeed}px`;
            } else {
                clearInterval(fallInterval);
            }
        }, 20);
    }

document.addEventListener('keydown', function (event) {
        movePlayer(event.key);
    });

document.addEventListener('mousemove', followMouse);
});

Stargazer Javascript Game

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