Sway Spire

Build eight starred levels against shifting wind. Each piece needs center support. Moving a beam center adds sway; two bracing pillars reset it. Never exceed 3 sway. Aim before wind. A three-cell beam adds the absolute distance from the previous center to sway. A one-cell pillar resets sway, but still needs support directly below. The preview reports support and next sway. Rejected star/edge placements cost nothing; a fall or sway collapse is recoverable with undo. No timer.