Improve Cave terrain generation. This is distinct from the Caves feature page, which adds caves to other terrain types.
Cave-terrain Ages do not require weather, season, or celestial symbols. Cave and Nether biomes are valid in this terrain type.
Acceptance criteria
Compare current Cave terrain and its biome/decorations against the relevant Legacy behavior; document unavoidable modern differences.
Generate authored cave and Nether biomes in Cave terrain without leaking surface-terrain biome assumptions.
Keep spawn search within the cave-safe policy, beginning around Y=64 rather than placing the player on the top of the cave dimension.
Verify weather/season/celestial omissions are accepted as intended, without changing how the separate Caves feature page works.
Add focused generation and restart tests; hand any stalling GameTest scenario to the player for in-game verification.
## Goal
Improve Cave **terrain** generation. This is distinct from the Caves feature page, which adds caves to other terrain types.
Cave-terrain Ages do not require weather, season, or celestial symbols. Cave and Nether biomes are valid in this terrain type.
## Acceptance criteria
- [ ] Compare current Cave terrain and its biome/decorations against the relevant Legacy behavior; document unavoidable modern differences.
- [ ] Generate authored cave and Nether biomes in Cave terrain without leaking surface-terrain biome assumptions.
- [ ] Keep spawn search within the cave-safe policy, beginning around Y=64 rather than placing the player on the top of the cave dimension.
- [ ] Verify weather/season/celestial omissions are accepted as intended, without changing how the separate Caves feature page works.
- [ ] Add focused generation and restart tests; hand any stalling GameTest scenario to the player for in-game verification.
dnorberg
added this to the Milestone 7 — Structures and polish milestone 2026-09-23 02:53:45 -04:00
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Goal
Improve Cave terrain generation. This is distinct from the Caves feature page, which adds caves to other terrain types.
Cave-terrain Ages do not require weather, season, or celestial symbols. Cave and Nether biomes are valid in this terrain type.
Acceptance criteria
weather and seasons should be disabled. weather, season and celestial pages will have no effect on cave terrain and count towards instability.