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Script

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<!DOCTYPE html>
<html>
<head>
    <title>Gemini Space Attack</title>
    <style>
        body { margin: 0; background: #000; overflow: hidden; display: flex; justify-content: center; align-items: center; height: 100vh; color: white; font-family: sans-serif; }
        canvas { border: 2px solid #333; background: #050505; }
        #ui { position: absolute; top: 20px; left: 20px; font-size: 20px; pointer-events: none; }
    </style>
</head>
<body>
    <div id="ui">Score: <span id="score">0</span></div>
    <canvas id="gameCanvas"></canvas>

<script>
    const canvas = document.getElementById('gameCanvas');
    const ctx = canvas.getContext('2d');
    const scoreEl = document.getElementById('score');

    canvas.width = 600;
    canvas.height = 800;

    let score = 0;
    let gameActive = true;

    const player = { x: 300, y: 700, w: 40, h: 40, speed: 7, color: '#00d4ff' };
    const bullets = [];
    const enemies = [];
    const keys = {};

    window.addEventListener('keydown', e => keys[e.code] = true);
    window.addEventListener('keyup', e => keys[e.code] = false);

    function spawnEnemy() {
        if(!gameActive) return;
        enemies.push({
            x: Math.random() * (canvas.width - 30),
            y: -30,
            w: 30,
            h: 30,
            speed: 2 + Math.random() * 3,
            color: '#ff4444'
        });
        setTimeout(spawnEnemy, 1000 - Math.min(score * 10, 700));
    }

    function update() {
        if(!gameActive) return;

        if (keys['ArrowLeft'] && player.x > 0) player.x -= player.speed;
        if (keys['ArrowRight'] && player.x < canvas.width - player.x) player.x += player.speed;
        if (keys['Space']) {
            if(bullets.length === 0 || bullets[bullets.length-1].y < player.y - 100) {
                bullets.push({ x: player.x + 18, y: player.y, w: 4, h: 15 });
            }
        }

        bullets.forEach((b, i) => {
            b.y -= 10;
            if(b.y < 0) bullets.splice(i, 1);
        });

        enemies.forEach((en, ei) => {
            en.y += en.speed;
            if(en.y > canvas.height) {
                gameActive = false;
                alert("Game Over! Score: " + score);
                location.reload();
            }

            // Collision check
            bullets.forEach((b, bi) => {
                if(b.x < en.x + en.w && b.x + b.w > en.x && b.y < en.y + en.h && b.y + b.h > en.y) {
                    enemies.splice(ei, 1);
                    bullets.splice(bi, 1);
                    score += 10;
                    scoreEl.innerText = score;
                }
            });
        });
    }

    function draw() {
        ctx.clearRect(0, 0, canvas.width, canvas.height);
        
        // Player
        ctx.fillStyle = player.color;
        ctx.fillRect(player.x, player.y, player.w, player.h);

        // Bullets
        ctx.fillStyle = 'yellow';
        bullets.forEach(b => ctx.fillRect(b.x, b.y, b.w, b.h));

        // Enemies
        ctx.fillStyle = 'red';
        enemies.forEach(en => ctx.fillRect(en.x, en.y, en.w, en.h));

        requestAnimationFrame(() => {
            update();
            draw();
        });
    }

    spawnEnemy();
    draw();
</script>
</body>
</html>

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4KB

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4KB

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182.0ms

Dom Content Loaded

200.0ms

First Paint

182.0ms

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