Always Plains Spawn

作者：MisoPy

将世界出生点设置在靠近水域和森林的平坦平原上，便于工业开局。

模组 Fabric Forge NeoForge 世界生成实用服务器工具生物群系

介绍

中文介绍正在准备中，下面暂时显示原文。

Sorry! Due to the review process with CurseForge, some versions haven’t uploaded properly!

The issue mentioned above has been resolved.

However, since the upload order is a bit off,
we recommend using a filter to retrieve the version you want

Always Plains Spawn

A Minecraft mod (Fabric / Forge / NeoForge) that relocates the world spawn into a Plains biome suited for industrial play — flat land, optional nearby water and forest.

Maintained by MisoPy.

Design assumptions

APS is built around vanilla overworld terrain generation.
Default config values assume vanilla biome layout and height shapes, and are tuned for industrial / factory-style starts:

Flat plains (surface height and local flatness filters)
Water (river / ocean / beach) within a short travel distance
Forest nearby for early wood

With those defaults, a new world should feel like a practical industrial spawn rather than a biome-gacha roll.

Terrain-generation mods

Mods that heavily change terrain or biomes (custom worldgen, large biome overhauls, exotic heightmaps, etc.) often clash with these assumptions. Spawn search may become slow, fail, or pick awkward sites.

config/alwaysplainsspawn-common.toml can soften some mismatches (relax flatness, drop water/forest requirements, raise max_surface_y, widen search). That only helps when the world still has recognizable plains-like areas. Forced use alongside deep worldgen overhauls is not recommended.

How it works

After the overworld is created/loaded (once per world), the mod searches for minecraft:plains using biome noise only (no chunk generation during search), then sets the world spawn.

Focus points:

Noise-only search — avoids generating chunks while hunting for plains (fast world create / first join)
Interior plains samples — reduces landing on thin plains strips or forest edges
Industrial site filters — estimated surface Y, sparse flatness ring (rejects steep river cuts), optional nearby water & forest
Spawn chunks left to vanilla — only the spawn coordinate is set; no custom forceload (compatible with removers such as Ksyxis)

Performance-minded details (quality kept close to the strict checks):

Flatness uses a sparse sample (cardinals / diagonals at radius & half-radius), not a dense height grid
Biome tags use sea-level noise Y instead of calling getBaseHeight on every query
Water + forest share one nearby spiral (one noise sample per column)
Winning candidate is not fully re-validated when placing the final Y

Bed / respawn-anchor spawns are unchanged. Without those, players use the plains world spawn.

A per-world marker (alwaysplainsspawn_relocated) prevents re-running after success.

Config

Path: config/alwaysplainsspawn-common.toml (created on first launch)

Key	Meaning
`search_radius`	Max search radius in blocks (default 4092)
`search_step`	Noise sampling interval (default 64; larger = faster)
`algorithm`	`locate` or `spiral` (both noise-only)
`interior_checks`	Neighbor plains samples to avoid biome edges
`max_surface_y`	Require estimated surface Y ≤ this (default 65)
`require_water_nearby`	Require river/ocean/beach nearby (default true)
`require_forest_nearby`	Require forest nearby (default true)
`nearby_check_radius`	Radius for water/forest checks (default 96)
`flatness_radius`	Area around spawn for flatness check (default 24)
`flatness_max_delta`	Max surface-Y spread in that area (default 2)
`fallback_to_vanilla`	Keep vanilla spawn if no match