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worldgen: parse structure sets and place them on the vanilla grid

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Loads the 26.1.2 structure datapack: 20 structure sets, 34 structure
definitions, and the worldgen biome tags they reference. Random-spread
placement follows RandomSpreadStructurePlacement byte for byte — region
floorDiv by spacing, one Legacy stream salted per region, two
spread-type draws for the offset — and the four legacy frequency
reducers keep their exact draws, including the hardcoded buried-treasure
salt and the outpost's discarded full-range int.

Verified against the fixture: on seed 12345 the ruined_portals set
claims exactly chunk (1,0), the chunk whose captured blocks carry the
ruined portal's obsidian, gold, and crying obsidian. TestStructure-
PlacementGrid pins that plus village separation invariants.
This commit is contained in:
Daniar Mannanov 2026-08-26 10:33:10 +03:00
parent f162698302
commit c488ce274f
125 changed files with 2123 additions and 0 deletions
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147
internal/worldgen/data/structure_json/trial_chambers.json Normal file
View file

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{
"type": "minecraft:jigsaw",
"biomes": "#minecraft:has_structure/trial_chambers",
"dimension_padding": 10,
"liquid_settings": "ignore_waterlogging",
"max_distance_from_center": 116,
"pool_aliases": [
{
"type": "minecraft:random_group",
"groups": [
{
"data": [
{
"type": "minecraft:direct",
"alias": "minecraft:trial_chambers/spawner/contents/ranged",
"target": "minecraft:trial_chambers/spawner/ranged/skeleton"
},
{
"type": "minecraft:direct",
"alias": "minecraft:trial_chambers/spawner/contents/slow_ranged",
"target": "minecraft:trial_chambers/spawner/slow_ranged/skeleton"
}
],
"weight": 1
},
{
"data": [
{
"type": "minecraft:direct",
"alias": "minecraft:trial_chambers/spawner/contents/ranged",
"target": "minecraft:trial_chambers/spawner/ranged/stray"
},
{
"type": "minecraft:direct",
"alias": "minecraft:trial_chambers/spawner/contents/slow_ranged",
"target": "minecraft:trial_chambers/spawner/slow_ranged/stray"
}
],
"weight": 1
},
{
"data": [
{
"type": "minecraft:direct",
"alias": "minecraft:trial_chambers/spawner/contents/ranged",
"target": "minecraft:trial_chambers/spawner/ranged/poison_skeleton"
},
{
"type": "minecraft:direct",
"alias": "minecraft:trial_chambers/spawner/contents/slow_ranged",
"target": "minecraft:trial_chambers/spawner/slow_ranged/poison_skeleton"
}
],
"weight": 1
}
]
},
{
"type": "minecraft:random",
"alias": "minecraft:trial_chambers/spawner/contents/melee",
"targets": [
{
"data": "minecraft:trial_chambers/spawner/melee/zombie",
"weight": 1
},
{
"data": "minecraft:trial_chambers/spawner/melee/husk",
"weight": 1
},
{
"data": "minecraft:trial_chambers/spawner/melee/spider",
"weight": 1
}
]
},
{
"type": "minecraft:random",
"alias": "minecraft:trial_chambers/spawner/contents/small_melee",
"targets": [
{
"data": "minecraft:trial_chambers/spawner/small_melee/slime",
"weight": 1
},
{
"data": "minecraft:trial_chambers/spawner/small_melee/cave_spider",
"weight": 1
},
{
"data": "minecraft:trial_chambers/spawner/small_melee/silverfish",
"weight": 1
},
{
"data": "minecraft:trial_chambers/spawner/small_melee/baby_zombie",
"weight": 1
}
]
}
],
"size": 20,
"spawn_overrides": {
"ambient": {
"bounding_box": "piece",
"spawns": []
},
"axolotls": {
"bounding_box": "piece",
"spawns": []
},
"creature": {
"bounding_box": "piece",
"spawns": []
},
"misc": {
"bounding_box": "piece",
"spawns": []
},
"monster": {
"bounding_box": "piece",
"spawns": []
},
"underground_water_creature": {
"bounding_box": "piece",
"spawns": []
},
"water_ambient": {
"bounding_box": "piece",
"spawns": []
},
"water_creature": {
"bounding_box": "piece",
"spawns": []
}
},
"start_height": {
"type": "minecraft:uniform",
"max_inclusive": {
"absolute": -20
},
"min_inclusive": {
"absolute": -40
}
},
"start_pool": "minecraft:trial_chambers/chamber/end",
"step": "underground_structures",
"terrain_adaptation": "encapsulate",
"use_expansion_hack": false
}