folk-canvas/demo/shape-collision-detection.html

57 lines
1.5 KiB
HTML

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Shapes - Collision</title>
<style>
* {
box-sizing: border-box;
}
html {
height: 100%;
}
body {
min-height: 100%;
position: relative;
margin: 0;
}
folk-shape {
border: 2px solid black;
}
</style>
</head>
<body>
<folk-shape x="100" y="100" width="50" height="50"></folk-shape>
<folk-shape x="200" y="200" width="50" height="50"></folk-shape>
<folk-shape x="200" y="275" width="50" height="50"></folk-shape>
<folk-shape x="200" y="150" width="50" height="50"></folk-shape>
<folk-shape x="200" y="100" width="50" height="50"></folk-shape>
<script type="module">
import '../src/standalone/folk-shape.ts';
import { aabbHitDetection } from '../src/common/collision.ts';
const shapes = Array.from(document.querySelectorAll('folk-shape'));
function handleCollision(e) {
for (const shape of shapes) {
if (shape === e.target) continue;
const hit = aabbHitDetection(shape.getTransformDOMRect(), e.target.getTransformDOMRect());
if (hit === null) continue;
shape.x -= hit.delta.x;
shape.y -= hit.delta.y;
}
}
document.addEventListener('transform', handleCollision);
</script>
</body>
</html>