Domino Chain Reaction — 2D Toppling Cascade

This 2D companion drives the same sequential-toppling mechanic as the 3D version on a plain canvas: each domino stands until the fall front reaches it, then rotates under a gravity-like angular acceleration until it settles flat, triggering the next one after a fixed interval. Adjust spacing, chain interval and fall gravity to see how they change the cascade's timing and rhythm, or click any standing domino to restart the chain from that point.