DefCoreLib

Shared core library for the def9a2a4 plugin family - a data-driven custom-block engine plus demo content. On its own it only ships the engine and some command-only demo items; other plugins build their features on top of it. See https://def9a2a4.github.io/defCoreLib-docs/

Download on Modrinth

What it provides

• Custom-block engine - YAML-driven player-head blocks with states, redstone behavior, particles, light, storage, and animated display entities. In particular, the use of custom heads and display entities allows cool visuals without any mods or resource packs!
• Custom items & heads, recipe registration, and persistence (chunk scan + self-healing) that companion plugins reuse instead of reimplementing.
• Mechanism engine - turns groups of blocks into moving display entities + colliders: glue-based doors/drawbridges and mechanism minecarts.
• Recipe gating - companion plugins switch their content's recipes on by namespace, so installing one adds a coherent, craftable feature set.
• ~20 command-only demo blocks (candles, redstone/binary displays, storage barrels, alarms, spinning/pulsing decorations) - grab them with /defcorelib give. Not meant to be useful, just there for testing the functionality.

Used by

DefCoreLib is a dependency other plugins install alongside:

• VerticalSlabs - vertical slabs
• BetterBanners - flag banners + large/huge banners
• Mechanism - rotation mechanisms, glue, mechanism minecarts
• RedstoneDisplays - redstone power indicator heads
• Pipes - item-transport pipes

Gallery

Plugin	Preview
VerticalSlabs
BetterBanners
Mechanism
RedstoneDisplays
Pipes

Commands

Permission corelib.admin.

Command	Description
/defcorelib give <id> [n]	Give a custom item (namespace:id or shorthand; give glue -> glue brush)
/defcorelib list	List all registered block ids
/defcorelib colliders	Toggle mechanism collider glow visualization
/defcorelib cleanorphans [confirm]	Find (and, with confirm, remove) orphaned display entities

Requires

Nothing - this is the base plugin.

Links

• Docs & item catalog: https://def9a2a4.github.io/defCoreLib-docs/
• Repository: https://github.com/def9a2a4/defCoreLib/
• Issues: https://github.com/def9a2a4/defCoreLib/issues