LumenSmith v0.1.4 — Major Update

New Features

In-Game Recipe Creator (/ls create <key>)

• Full click-based GUI recipe builder — no YAML editing needed
• Supports all 9 recipe types: shaped, shapeless, furnace, blasting, smoking, campfire, stonecutting, smithing transform, and adjacent pair
• Click a slot, then click any item in your inventory to assign materials
• Type selector — pick your recipe type visually, change it anytime
• Result amount control — set output amount from 1-64 with +/- buttons (always starts at 1 when picking an item)
• Cooking controls — adjust cooking time (+/-50 ticks) and experience (+/-0.1) directly in the GUI
• Fuel selector — restrict which fuels are allowed for cooking recipes (click to add fuels, right-click to clear)
• Direction option — for adjacent pair recipes, choose horizontal, vertical, or both placement directions
• Auto-generates auto_unlock_on from ingredients
• Saves directly to config.yml and reloads instantly

Recipe Editing

• Edit button in recipe detail view (writable book icon) — loads existing recipe into the creator with all data pre-filled
• Supports editing all recipe types including shaped grid layout, cooking settings, fuel restrictions, and direction
• Saves changes in-place (replaces old config entry)

Recipe Deletion

• Delete button in recipe detail view (TNT icon) — removes recipe from config with one click
• Instantly reloads after deletion

Adjacent Pair Direction

• New direction config field for adjacent pair recipes: horizontal, vertical, or both (default)
• Controls which placement orientations are registered
• Fully configurable from both YAML and the in-game creator

Bug Fixes

Smelting Output Fix

• Fixed critical bug where custom cooking recipe outputs were blocked by remove_by_output
• Example: custom "Crying Obsidian -> Obsidian" recipe was blocked because OBSIDIAN was in the blocked outputs list
• Custom recipes now correctly bypass the vanilla output blocker

Fuel Enforcement Fix

• Switched from FurnaceSmeltEvent to FurnaceBurnEvent for fuel checking
• FurnaceBurnEvent fires before fuel is consumed, making getFuel() reliable
• Prevents infinite smelting loops when wrong fuel was used

Ingredient Display Deduplication

• /ls recipes browser and detail view now groups duplicate ingredients
• Shows STONE x9 instead of listing STONE nine separate times
• Applies to both shapeless and shaped recipe displays

Performance Optimizations

O(1) Fuel Index Lookup

• Pre-built cookingFuelIndex map in RecipeLoader (built once during config load)
• CookingBlockListener.onBurn now uses direct map lookup instead of iterating all recipes
• Reduces furnace burn event processing from O(n) to O(1) where n = total recipe count

Memory Leak Prevention

• Creator sessions are now cleaned up on PlayerQuitEvent
• Prevents session map from growing unbounded when players disconnect without closing the GUI

Existing Optimizations

• Pre-computed static messages in BlockCraftListener (no string processing on hot paths)
• Debounced recipe book rescanning with pendingRescan set + 2-tick delay
• boolean[] indexed by Material.ordinal() for O(1) material presence checks in UnlockListener
• Immutable List.copyOf / Map.copyOf for cached recipe data

Permissions

Config Changes

New optional fields for cooking recipes:

custom_recipes:
  - key: "my_smelt"
    type: "furnace"
    input: "CRYING_OBSIDIAN"
    experience: 1.0
    cooking_time: 200
    allowed_fuels:          # NEW — restrict fuel types
      - COAL
      - LAVA_BUCKET
    result:
      item: "OBSIDIAN"
      amount: 1

New optional field for adjacent pair recipes:

  - key: "my_pair"
    type: "adjacent_pair"
    items: ["DIAMOND_BLOCK", "GOLD_BLOCK"]
    direction: "horizontal"   # NEW — horizontal, vertical, or both (default)
    result:
      item: "NETHERITE_BLOCK"
      amount: 1

Full Changelog: v0.1.3 -> v0.1.4

LumenSmith 0.1.3

✦ Added

• Instant recipe unlocks players now automatically unlock custom recipes the moment they obtain any item listed in auto_unlock_on.
• /ls rescan command instantly refreshes all players’ recipe books without reloading the plugin.
• World filter improvements more stable handling when switching between whitelistworldoff: true/false.

✦ Fixed

• Fixed a bug where players had to rejoin the server or restart to see newly unlocked recipes.
• Fixed delayed unlocks when using /give, crafting, or picking up trigger items.
• Fixed rare cases where crafting events didn’t update the recipe book correctly.

✦ Improved

• Refined UnlockListener for smoother and faster detection of inventory changes.
• Small cleanup and safety checks for reload and recipe validation.
• Polished internal logs and better formatting for /ls list.

✦ Notes

This version focuses entirely on real-time recipe unlocking and smoother gameplay no more relogs, no restarts. Next version (0.1.4) is coming soon, as fast as possible!

• Added full support for world_filter — LumenSmith features can now be enabled globally or restricted to specific worlds.

• Added adjacent_pair recipe type: lets two items crafted side-by-side or vertically anywhere on the 3×3 grid produce a result.

• Added auto_unlock_on fix — recipes now appear correctly in the green book once a player obtains any listed items.

• Added /ls rescan command to re-check all online players’ inventories and unlock missing recipes instantly.

• Added /ls fixbook command to clean duplicate or outdated recipe entries in players’ books.

• Improved /ls list output for better readability and detailed recipe status.

• Improved configuration comments and layout for a clearer, beginner-friendly setup.

• Minor internal cleanup and stability improvements on Paper / Spigot 1.21.x.

Added full protection for remove_by_output items → Blocked items can no longer be clicked, shift-crafted, or taken from the crafting table. → Ingredients are not consumed, and the result slot stays empty.

Added extra safety checks for drag and result slot interactions.

Updated /ls help version info to v0.1.1.

Improved overall crafting event handling for Paper & Spigot 1.21.x.

LumenSmith 0.1.0 | Initial Release

Added support for custom shaped and shapeless recipes via config.yml

Added remove_by_output to block crafting of vanilla items (e.g., TNT, TNT Minecart)

Added auto_unlock_on so recipes appear automatically in the recipe book when a trigger item is obtained

Added /lumensmith command (alias /ls)

/ls help – show available commands

/ls list – list blocked outputs and custom recipes

/ls reload – reload all recipes and configuration

Added beginner-friendly configuration layout with clear comments

Added automatic replacement of vanilla recipes when custom ones use the same key

Added colored console summary of loaded recipes

Added permission system (lumensmith.admin)

Fully reload-safe and compatible with Paper, Spigot, and Purpur (1.20.x – 1.21.x)