app.py

import gradio as gr

# Simple Car Game HTML + JavaScript embedded inside Gradio
car_game_html = """
<style>
  body {
    background-color: #111;
    color: white;
    font-family: Arial, sans-serif;
  }
  #gameCanvas {
    background: #222;
    display: block;
    margin: 1em auto;
    border: 3px solid white;
    border-radius: 8px;
  }
  #instructions {
    text-align: center;
    margin-top: 0.5em;
  }
</style>

<canvas id="gameCanvas" width="400" height="600"></canvas>
<div id="instructions">Use Left and Right Arrow keys to move the car</div>

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

  let car = { x: 180, y: 520, width: 40, height: 60 };
  let obstacles = [];
  let speed = 5;
  let gameOver = false;
  let score = 0;

  document.addEventListener('keydown', function(event) {
    if (gameOver) return;
    if(event.key === "ArrowLeft" && car.x > 0) car.x -= 20;
    if(event.key === "ArrowRight" && car.x < canvas.width - car.width) car.x += 20;
  });

  function createObstacle() {
    let size = 40;
    let x = Math.floor(Math.random() * (canvas.width - size));
    obstacles.push({ x: x, y: -size, width: size, height: size });
  }

  function drawCar() {
    ctx.fillStyle = '#00ffff';
    ctx.fillRect(car.x, car.y, car.width, car.height);
  }

  function drawObstacles() {
    ctx.fillStyle = '#ff0000';
    for(let i = 0; i < obstacles.length; i++) {
      let ob = obstacles[i];
      ctx.fillRect(ob.x, ob.y, ob.width, ob.height);
      ob.y += speed;

      // Collision detection
      if (
        ob.x < car.x + car.width &&
        ob.x + ob.width > car.x &&
        ob.y < car.y + car.height &&
        ob.y + ob.height > car.y
      ) {
        gameOver = true;
        alert("Game Over! Your score: " + score);
        document.location.reload();
      }

      // Remove obstacles that go off screen
      if (ob.y > canvas.height) {
        obstacles.splice(i, 1);
        i--;
        score++;
      }
    }
  }

  function drawScore() {
    ctx.fillStyle = '#fff';
    ctx.font = '20px Arial';
    ctx.fillText('Score: ' + score, 10, 30);
  }

  function gameLoop() {
    ctx.clearRect(0, 0, canvas.width, canvas.height);
    drawCar();
    drawObstacles();
    drawScore();
    if (!gameOver) {
      requestAnimationFrame(gameLoop);
    }
  }

  setInterval(createObstacle, 1000);
  gameLoop();
</script>
"""

with gr.Blocks() as demo:
    gr.Markdown("# 🚗 Simple Car Game with Gradio & Hugging Face")
    gr.HTML(car_game_html)

demo.launch()