Epic: Expand terrain type system #24

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opened 2026-03-14 23:53:09 +00:00 by freemo · 0 comments

freemo commented

2026-03-14 23:53:09 +00:00

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Background

Only 3 terrain types are used (GRASSLAND, CITY, TUNDRA). Tree cover maps to GRASSLAND, water bodies map to TUNDRA, bare vegetation maps to TUNDRA. The Terrain module defines 5 types but the generator only uses 3.

Demonstrable Outcome

8 terrain types are defined and properly mapped from ESA land-cover codes: GRASSLAND, FOREST, CITY, TOWN, TUNDRA, OCEAN, DESERT, UNDERGROUND.

Acceptance Criteria

FOREST, OCEAN, DESERT terrain types added to terrain.rb
ESA code mapping updated: code 10/20->FOREST, code 60->DESERT, code 80->OCEAN
Each terrain type has appropriate room/area text descriptions
Unit tests cover all terrain type mappings

## Background Only 3 terrain types are used (GRASSLAND, CITY, TUNDRA). Tree cover maps to GRASSLAND, water bodies map to TUNDRA, bare vegetation maps to TUNDRA. The Terrain module defines 5 types but the generator only uses 3. ## Demonstrable Outcome 8 terrain types are defined and properly mapped from ESA land-cover codes: GRASSLAND, FOREST, CITY, TOWN, TUNDRA, OCEAN, DESERT, UNDERGROUND. ## Acceptance Criteria - [ ] FOREST, OCEAN, DESERT terrain types added to `terrain.rb` - [ ] ESA code mapping updated: code 10/20->FOREST, code 60->DESERT, code 80->OCEAN - [ ] Each terrain type has appropriate room/area text descriptions - [ ] Unit tests cover all terrain type mappings