Hand tracking v1 — Attract
Every ball in the arena leans toward the tracked hand: a weak clamped pull per fingertip gathers the whole swarm into a cluster that follows the glow.
The balls no longer wait to be hit — they converge on the hand from every direction and pack around it like filings on a magnet, half-burying the spectral ribbon in its own catch. Drag the hand and the whole cluster follows with a soft lag.
On the shared stage — a Matter.js world with walls, the hand landmarks doubling as static colliders — each frame adds a small attraction force on every ball toward every tracked point, proportional to the offset but clamped to a ceiling so nothing slingshots. Where the first version was pure collision, this one adds the pull; the colliders still keep the balls from ever occupying the hand itself.
