CANVAS · every model, same prompt
Build a physics sandbox
11 models built this from the identical prompt. Click any one to open the live build.
▸ The prompt every model got
Build an interactive 2D physics sandbox on an HTML <canvas>. Clicking anywhere drops a circle that falls under gravity and collides — with the floor, the side walls, and other circles — bouncing and settling to rest realistically (position, velocity, restitution). Vary circle size and color. Include a "clear" button and a live count. Vanilla JavaScript only, no libraries. Return one self-contained HTML file. Output only the HTML.