Moog's Structure Lib (moogs_structures)

[3.0.1] - 2026-06-22

Fixed

• mixin compatibility level bumped to java 25 on fabric and neoforge configs (was java 21), matching the mc 26.1 class version. previously the neoforge StructurePoolMixin and fabric EntityProcessorMixin were silently skipped at load.

[3.0.1] - 2026-06-22

Fixed

• mixin compatibility level bumped to java 25 on fabric and neoforge configs (was java 21), matching the mc 26.1 class version. previously the neoforge StructurePoolMixin and fabric EntityProcessorMixin were silently skipped at load.

[3.0.1] - 2026-06-22

Fixed

• mixin compatibility level bumped to java 25 on fabric and neoforge configs (was java 21), matching the mc 26.2 class version. previously the neoforge StructurePoolMixin and fabric EntityProcessorMixin were silently skipped at load.

[3.0.1] - 2026-06-22

Fixed

• mixin compatibility level bumped to java 25 on fabric and neoforge configs (was java 21), matching the mc 26.2 class version. previously the neoforge StructurePoolMixin and fabric EntityProcessorMixin were silently skipped at load.

[3.0.0] - 2026-06-20

Added

• Structure processors:
  • pillar_processor - extends a pillar up or down from a trigger block until it reaches solid ground, with an optional altitude-aware block-state randomizer. Recognises legacy vanilla block ids (e.g. minecraft:chain from before the 1.21.9 rename) and rewrites them to their renamed modern equivalents so older authored structures keep generating correctly.
  • spawner_randomizing_processor - sets a mob spawner's mob from an inline weighted entity list (no external dependency). Each weighted entry may carry an optional nbt field so spawners can ship pre-equipped or otherwise pre-configured mobs without an extra processor.
  • equip_armor_stand_processor - equips armor stands from a weighted-random list of armor sets, with per-item enchantments and trims expressed in the vanilla item-component format.
  • close_off_fluid_sources_processor, remove_floating_blocks_processor, random_replace_with_properties_processor, super_gravity_processor, flood_with_water_processor.
• Per-piece spawn counts (data/<namespace>/msl_pieces_spawn_counts/ and ..._additions/): a datapack-driven cap on how many times each jigsaw piece may appear in a generated structure, so rare pieces stay rare without rebuilding the pool. The _additions variant lets downstream datapacks extend or override another mod's counts without forking the source file.
• Entity processor framework (StructureEntityProcessor): lets processors modify or equip entities as a structure is placed. On Fabric a mixin runs the entity processors during StructureTemplate.placeEntities (which vanilla never invokes the entity hook for); Forge/NeoForge use their native entity processing.
• Enhanced terrain adaptation (beardifier): carves or buries terrain around pieces, with a configurable vertical band to confine carving to matching-height rows.
• Basalt & delta suppression: prevents basalt columns and basalt deltas from generating within structure piece bounds (structure tags no_basalt, no_delta).
• Nether jigsaw structures: raised size cap to 128 pieces, added a FIXED_HEIGHT land search direction for structures that must place at a specific Y, and stricter y_allowance enforcement on final placement.
• Debug command: /moogs_structures debug keepjigsaws on|off|status keeps jigsaw blocks in placed structures so their name/target/pool can be inspected in-world.

Fixed

• dependent mods (e.g. Moog's Nether Structures) failing to recognise this build as version 3.0.0.
• structures with enchanted armor on armor stands failing to load.

[3.0.0] - 2026-06-20

Added

• Structure processors:
  • pillar_processor - extends a pillar up or down from a trigger block until it reaches solid ground, with an optional altitude-aware block-state randomizer. Recognises legacy vanilla block ids (e.g. minecraft:chain from before the 1.21.9 rename) and rewrites them to their renamed modern equivalents so older authored structures keep generating correctly.
  • spawner_randomizing_processor - sets a mob spawner's mob from an inline weighted entity list (no external dependency). Each weighted entry may carry an optional nbt field so spawners can ship pre-equipped or otherwise pre-configured mobs without an extra processor.
  • equip_armor_stand_processor - equips armor stands from a weighted-random list of armor sets, with per-item enchantments and trims expressed in the vanilla item-component format.
  • close_off_fluid_sources_processor, remove_floating_blocks_processor, random_replace_with_properties_processor, super_gravity_processor, flood_with_water_processor.
• Per-piece spawn counts (data/<namespace>/msl_pieces_spawn_counts/ and ..._additions/): a datapack-driven cap on how many times each jigsaw piece may appear in a generated structure, so rare pieces stay rare without rebuilding the pool. The _additions variant lets downstream datapacks extend or override another mod's counts without forking the source file.
• Entity processor framework (StructureEntityProcessor): lets processors modify or equip entities as a structure is placed. On Fabric a mixin runs the entity processors during StructureTemplate.placeEntities (which vanilla never invokes the entity hook for); Forge/NeoForge use their native entity processing.
• Enhanced terrain adaptation (beardifier): carves or buries terrain around pieces, with a configurable vertical band to confine carving to matching-height rows.
• Basalt & delta suppression: prevents basalt columns and basalt deltas from generating within structure piece bounds (structure tags no_basalt, no_delta).
• Nether jigsaw structures: raised size cap to 128 pieces, added a FIXED_HEIGHT land search direction for structures that must place at a specific Y, and stricter y_allowance enforcement on final placement.
• Debug command: /moogs_structures debug keepjigsaws on|off|status keeps jigsaw blocks in placed structures so their name/target/pool can be inspected in-world.

Fixed

• dependent mods (e.g. Moog's Nether Structures) failing to recognise this build as version 3.0.0.
• structures with enchanted armor on armor stands failing to load.

Added

• Structure processors:
  • pillar_processor - extends a pillar up or down from a trigger block until it reaches solid ground, with an optional altitude-aware block-state randomizer. Recognises legacy vanilla block ids (e.g. minecraft:chain from before the 1.21.9 rename) and rewrites them to their renamed modern equivalents so older authored structures keep generating correctly.
  • spawner_randomizing_processor - sets a mob spawner's mob from an inline weighted entity list (no external dependency). Each weighted entry may carry an optional nbt field so spawners can ship pre-equipped or otherwise pre-configured mobs without an extra processor.
  • trial_spawner_randomizing_processor - writes a chosen trial-spawner configuration into placed trial spawners, with an optional ominous variant. Uses inline configs on MC 1.21 - 1.21.4 and references the vanilla minecraft:trial_spawner registry on 1.21.5+.
  • vault_randomizing_processor - assigns a loot table and key item to a placed vault, automatically picking the ominous variant for blocks with the ominous blockstate set.
  • equip_armor_stand_processor - equips armor stands from a weighted-random list of armor sets, with per-item enchantments and trims expressed in the vanilla item-component format.
  • close_off_fluid_sources_processor, remove_floating_blocks_processor, random_replace_with_properties_processor, super_gravity_processor, flood_with_water_processor.
• Per-piece spawn counts (data/<namespace>/msl_pieces_spawn_counts/ and ..._additions/): a datapack-driven cap on how many times each jigsaw piece may appear in a generated structure, so rare pieces stay rare without rebuilding the pool. The _additions variant lets downstream datapacks extend or override another mod's counts without forking the source file.
• Entity processor framework (StructureEntityProcessor): lets processors modify or equip entities as a structure is placed. On Fabric a mixin runs the entity processors during StructureTemplate.placeEntities (which vanilla never invokes the entity hook for); Forge/NeoForge use their native entity processing.
• Enhanced terrain adaptation (beardifier): carves or buries terrain around pieces, with a configurable vertical band to confine carving to matching-height rows.
• Basalt & delta suppression: prevents basalt columns and basalt deltas from generating within structure piece bounds (structure tags no_basalt, no_delta).
• Nether jigsaw structures: raised size cap to 128 pieces, added a FIXED_HEIGHT land search direction for structures that must place at a specific Y, and stricter y_allowance enforcement on final placement.
• Debug command: /moogs_structures debug keepjigsaws on|off|status keeps jigsaw blocks in placed structures so their name/target/pool can be inspected in-world.

Fixed

• dependent mods (e.g. Moog's Nether Structures) failing to recognise this build as version 3.0.0.
• structures with enchanted armor on armor stands failing to load.

Added

• Structure processors:
  • pillar_processor - extends a pillar up or down from a trigger block until it reaches solid ground, with an optional altitude-aware block-state randomizer. Recognises legacy vanilla block ids (e.g. minecraft:chain from before the 1.21.9 rename) and rewrites them to their renamed modern equivalents so older authored structures keep generating correctly.
  • spawner_randomizing_processor - sets a mob spawner's mob from an inline weighted entity list (no external dependency). Each weighted entry may carry an optional nbt field so spawners can ship pre-equipped or otherwise pre-configured mobs without an extra processor.
  • trial_spawner_randomizing_processor - writes a chosen trial-spawner configuration into placed trial spawners, with an optional ominous variant. Uses inline configs on MC 1.21 - 1.21.4 and references the vanilla minecraft:trial_spawner registry on 1.21.5+.
  • vault_randomizing_processor - assigns a loot table and key item to a placed vault, automatically picking the ominous variant for blocks with the ominous blockstate set.
  • equip_armor_stand_processor - equips armor stands from a weighted-random list of armor sets, with per-item enchantments and trims expressed in the vanilla item-component format.
  • close_off_fluid_sources_processor, remove_floating_blocks_processor, random_replace_with_properties_processor, super_gravity_processor, flood_with_water_processor.
• Per-piece spawn counts (data/<namespace>/msl_pieces_spawn_counts/ and ..._additions/): a datapack-driven cap on how many times each jigsaw piece may appear in a generated structure, so rare pieces stay rare without rebuilding the pool. The _additions variant lets downstream datapacks extend or override another mod's counts without forking the source file.
• Entity processor framework (StructureEntityProcessor): lets processors modify or equip entities as a structure is placed. On Fabric a mixin runs the entity processors during StructureTemplate.placeEntities (which vanilla never invokes the entity hook for); Forge/NeoForge use their native entity processing.
• Enhanced terrain adaptation (beardifier): carves or buries terrain around pieces, with a configurable vertical band to confine carving to matching-height rows.
• Basalt & delta suppression: prevents basalt columns and basalt deltas from generating within structure piece bounds (structure tags no_basalt, no_delta).
• Nether jigsaw structures: raised size cap to 128 pieces, added a FIXED_HEIGHT land search direction for structures that must place at a specific Y, and stricter y_allowance enforcement on final placement.
• Debug command: /moogs_structures debug keepjigsaws on|off|status keeps jigsaw blocks in placed structures so their name/target/pool can be inspected in-world.

Fixed

• dependent mods (e.g. Moog's Nether Structures) failing to recognise this build as version 3.0.0.
• structures with enchanted armor on armor stands failing to load.