`data/artifacts/15f8755f21c5/qwen3-14b.html`

103 lines
<!DOCTYPE html>
<html>
<head>
  <meta charset="UTF-8">
  <title>Animated Starfield Warp</title>
  <style>
    html, body {
      margin: 0;
      padding: 0;
      overflow: hidden;
      background: black;
      height: 100%;
      width: 100%;
      cursor: none;
    }
    canvas {
      display: block;
    }
    #controls {
      position: absolute;
      top: 10px;
      left: 10px;
      color: white;
      font-family: sans-serif;
      background: rgba(0,0,0,0.5);
      padding: 10px;
      border-radius: 5px;
    }
    input[type="range"] {
      width: 200px;
    }
  </style>
</head>
<body>
  <div id="controls">
    <label for="speed">Warp Speed: <span id="speedValue">1</span></label>
    <input type="range" id="speed" min="0.1" max="5" step="0.1" value="1">
  </div>
  <canvas id="starfield"></canvas>
  <script>
    const canvas = document.getElementById('starfield');
    const ctx = canvas.getContext('2d');
    const controls = document.getElementById('controls');
    const speedSlider = document.getElementById('speed');
    const speedValue = document.getElementById('speedValue');

    let width, height;
    let mouse = { x: 0, y: 0 };
    let warpDirection = { x: 0, y: 0 };
    let speed = parseFloat(speedSlider.value);

    function resize() {
      width = canvas.width = window.innerWidth;
      height = canvas.height = window.innerHeight;
    }

    window.addEventListener('resize', resize);
    resize();

    window.addEventListener('mousemove', (e) => {
      mouse.x = e.clientX;
      mouse.y = e.clientY;
      warpDirection.x = (mouse.x - width / 2) / (width / 2);
      warpDirection.y = (mouse.y - height / 2) / (height / 2);
    });

    speedSlider.addEventListener('input', (e) => {
      speed = parseFloat(e.target.value);
      speedValue.textContent = speed.toFixed(1);
    });

    const stars = [];
    for (let i = 0; i < 1000; i++) {
      stars.push({
        x: Math.random() * width,
        y: Math.random() * height,
        z: Math.random() * 100 + 50,
        size: Math.random() * 1.5 + 0.5
      });
    }

    function drawStars() {
      ctx.clearRect(0, 0, width, height);
      ctx.fillStyle = 'white';
      ctx.beginPath();
      for (let star of stars) {
        const x = (star.x - width / 2 + star.z * warpDirection.x * 10) / star.z + width / 2;
        const y = (star.y - height / 2 + star.z * warpDirection.y * 10) / star.z + height / 2;
        ctx.moveTo(x, y);
        ctx.arc(x, y, star.size / star.z * 10, 0, Math.PI * 2);
      }
      ctx.fill();
    }

    function animate() {
      drawStars();
      requestAnimationFrame(animate);
    }

    animate();
  </script>
</body>
</html>