MJColumnRush

MJColumnRush is an mahjong-based timing game featuring a grid with independent vertical pillar bouncers.

1. Press START: Shuffles 16 tiles, generates lucky tile/wind, begins four-pillar animation
2. Pillars move independently up and down within their columns at different base intervals
3. Press STOP: Calculates per-pillar phase, seeds LCG for each, generates independent deceleration plans
4. Pillars decelerate with interval growth, may flip direction once each, capture tiles at predetermined column triggers
5. Four captures: Each column captures one tile based on priority order with fallback
6. Final stop after all pillars complete finalHold countdown