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Script

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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Endless Vertical Platformer</title>
<style>
    body {
        margin: 0;
        overflow: hidden;
        background-color: #000;
    }
    canvas {
        display: block;
        margin: auto;
        background-color: #000;
    }
</style>
</head>
<body>
<canvas id="gameCanvas" width="400" height="600"></canvas>
<script>
    const canvas = document.getElementById('gameCanvas');
    const ctx = canvas.getContext('2d');

    const PLAYER_SIZE = 20;
    const PLATFORM_WIDTH = 80;
    const PLATFORM_HEIGHT = 20;
    const PLATFORM_GAP = 200;
    const PLATFORM_SPEED = 2;
    const PLAYER_SPEED = 5;
    let playerX = canvas.width / 2;
    let playerY = canvas.height / 2;
    let platforms = [];
    let score = 0;

    function drawPlayer() {
        ctx.fillStyle = '#fff';
        ctx.fillRect(playerX - PLAYER_SIZE / 2, playerY - PLAYER_SIZE / 2, PLAYER_SIZE, PLAYER_SIZE);
    }

    function drawPlatforms() {
        ctx.fillStyle = '#fff';
        platforms.forEach(platform => {
            ctx.fillRect(platform.x, platform.y, PLATFORM_WIDTH, PLATFORM_HEIGHT);
        });
    }

    function movePlatforms() {
        platforms.forEach(platform => {
            platform.y -= PLATFORM_SPEED;
            if (platform.y + PLATFORM_HEIGHT < 0) {
                platforms.shift();
                score++;
            }
        });
    }

    function generatePlatforms() {
        const lastPlatform = platforms[platforms.length - 1];
        if (!lastPlatform || lastPlatform.y + PLATFORM_GAP < canvas.height) {
            const x = Math.random() * (canvas.width - PLATFORM_WIDTH);
            const y = canvas.height + PLATFORM_GAP;
            platforms.push({ x, y });
        }
    }

    function update() {
        movePlatforms();
        generatePlatforms();
    }

    function draw() {
        ctx.clearRect(0, 0, canvas.width, canvas.height);
        drawPlayer();
        drawPlatforms();
        requestAnimationFrame(draw);
    }

    function handleKeyPress(e) {
        if (e.key === 'ArrowLeft' && playerX > PLAYER_SIZE / 2) {
            playerX -= PLAYER_SPEED;
        } else if (e.key === 'ArrowRight' && playerX < canvas.width - PLAYER_SIZE / 2) {
            playerX += PLAYER_SPEED;
        } else if (e.key === 'ArrowUp' && playerY > PLAYER_SIZE / 2) {
            playerY -= PLAYER_SPEED;
        } else if (e.key === 'ArrowDown' && playerY < canvas.height - PLAYER_SIZE / 2) {
            playerY += PLAYER_SPEED;
        }
    }

    document.addEventListener('keydown', handleKeyPress);

    function mainLoop() {
        update();
        draw();
    }

    setInterval(mainLoop, 1000 / 60); // 60 FPS

</script>
</body>
</html>

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3KB

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88.0ms

Dom Content Loaded

92.0ms

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92.0ms

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