ce95930b87
Coastline analysis and fix: - Coastlines now only show 2-edge patterns (straight, wide curve, sharp bend) — Y-junctions and crossroads removed since a coast always divides exactly two sides - Added waterSide property to HexFeature (1=CW, -1=CCW) — stored explicitly instead of computed by broken center-distance heuristic that flipped water/land at rotation midpoint - F key or "Flip water side" button in palette to toggle which side is water before placing - Inspector shows flip button (swap arrows) for placed coastlines - Rotation preserves waterSide — no more land/water swaps - Separate pattern lists: GENERAL_PATTERNS for road/river, COASTLINE_PATTERNS for coastline (core/tile-patterns.ts) Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>