Run `./gradlew runGameTestServer` to validate the latitude biome system
without manual in-game testing. Boots a headless game server (full biome
registry), samples a 32000x32000 grid through LatitudeBiomeSource, renders a
PNG map and writes a distribution report, then asserts climate invariants:
- spawn on a safe biome (plains/forest)
- FROZEN band dominated by cold/frozen biomes (>60%)
- HOT band dominated by warm/hot biomes (>60%)
- swamp remains rare in the temperate band (<15%)
Outputs land in run/gametest-results/latitude/ (latitude_map.png +
latitude_report.txt). Sampling is BiomeSource-only (no chunk generation),
so it runs in ~35s regardless of installed mods.
- LatitudeGameTest: @GameTestHolder + @PrefixGameTestTemplate(false)
- structure/empty_1x1.nbt: minimal 1x1x1 air structure required by GameTest
- build.gradle: add gameTestServer run configuration
feldenr
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