Axel Meyer 9a61647b4a Fix coastline water side flipping on rotation ...

Root cause: pairEdges returned edges sorted numerically, but
getVerticesOnSide interprets "CW walk from edge2 to edge1" —
when the pair order flipped (e.g., [NE,NW] vs [E,SE]), the
CW walk went the long way vs short way, swapping water/land.

Fix: normalize edge pair so CW distance from e1→e2 is always
≤3 steps (the short arc). This makes waterSide=1 consistently
mean the same geometric side at every rotation.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

2026-04-07 11:22:52 +00:00

core

Fix coastline: 2-edge only, explicit waterSide, flip control

2026-04-07 11:17:56 +00:00

pipeline

Phase 1: Core hex engine, Leaflet overlay, terrain painting UI

2026-04-07 10:32:52 +00:00

public

Phase 2: Terrain textures, bezier routing, drag-paint, HTTPS

2026-04-07 10:41:24 +00:00

server

Phase 3: Express backend, SQLite persistence, auto-save

2026-04-07 10:45:37 +00:00

src

Fix coastline water side flipping on rotation

2026-04-07 11:22:52 +00:00

tests/core

Phase 1: Core hex engine, Leaflet overlay, terrain painting UI

2026-04-07 10:32:52 +00:00

.gitignore

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index.html

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package-lock.json

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package.json

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2026-04-07 10:45:37 +00:00

tsconfig.json

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tsconfig.server.json

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vite-env.d.ts

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vite.config.ts

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2026-04-07 10:45:37 +00:00

vitest.config.ts

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2026-04-07 10:09:51 +00:00

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