ItemCoreX 2.1 - Hotfix

This update improves the safety of /ic sellvanilla and the related vanilla amount placeholders.

Fixed

• /ic sellvanilla now only sells clean, unchanged vanilla items.
• Items with PDC/plugin data are now ignored.
• Items with custom names, lore, enchants, custom model data, attribute modifiers or other custom metadata are ignored.
• Custom items from ItemCoreX and other plugins are now protected from being accidentally sold as vanilla items.
• The ItemCoreX vanilla amount placeholders now use the same strict vanilla detection.

Why this matters

Some plugins use normal Minecraft materials for custom items and store their data through PDC.

For example, a custom fish can use the same material as a normal COD, SALMON, PUFFERFISH or TROPICAL_FISH.

With this hotfix, /ic sellvanilla will only accept real vanilla items and will ignore protected/custom plugin items.

Recommended

• Restart your server after updating.
• If you use PlaceholderAPI and DeluxeMenus together with ItemCoreX, make sure both plugins are fully reloaded after the update.
• Update your shop menus to use /ic sellvanilla instead of minecraft:clear when selling vanilla items.

🚀 ItemCoreX 2.0 - HUGE UPDATE

This update heavily modernizes ItemCoreX and introduces a much cleaner GUI-first workflow.

✨ Major Changes

• Complete GUI overhaul
• Improved item editor system
• Better real-time item previews
• Improved serialized item handling
• Better glow handling for serialized items
• Better GUI inventory click isolation
• Cleaner internal architecture
• Improved language system
• Removed outdated legacy command systems
• Removed unused config/lang entries
• Improved stack size editor handling
• Improved item consistency across GUI and commands
• Improved logger/startup banner
• Large internal cleanup and optimization pass

🛠️ GUI & Editor Improvements

• Real 1:1 item previews
• Display names now correctly use serialized item data
• Improved item editor navigation
• Better lore editing workflow
• Better stack size handling
• Cleaner editor structure
• Improved GUI interaction handling

🔧 Cleanup

Removed outdated systems and commands:

• Removed /ic info
• Removed /ic list
• Removed /ic iteminfo
• Removed /ic setname
• Removed /ic setglow
• Removed /ic disable
• Removed /ic disableall

📦 Version

1.4 → 2.0

This is a major internal and structural update for ItemCoreX.

ItemCoreX 1.4 - Major Custom Item Update

Added:

• True 1:1 custom item saving
• Custom items now keep their original name, lore, enchantments, attributes and flags
• Custom stack-size support for ItemCoreX items
• Support for stack sizes beyond vanilla stack limits (up to 99)
• To increase the stack size of a custom item, add 'stack-size: 99' to that item in customitems.yml.

Improved:

• Much more reliable /ic create behavior for advanced custom items
• Better support for custom weapons and attribute-based items
• Stronger foundation for shops, upgrades and secure custom item progression

Fixed:

• Custom items created from held items no longer lose important item data
• Attribute modifiers are now saved correctly
• Saved custom items now behave much closer to the original item

ItemCoreX 1.3

This update adds a much safer item delivery system for custom items and improves ItemCoreX integration with PlaceholderAPI and third-party plugins.

New

• Added a persistent pending / claim system for custom items
• Added /ic claim for players to claim saved pending items
• Added SQLite-based storage for pending items
• Added auto-claim on join
• Added join reminder if pending items still exist
• Added new PlaceholderAPI placeholders:
  • %itemcorex_pending_total%
  • %itemcorex_has_pending%
  • %itemcorex_pending_<key>%

Improved

• Improved custom item delivery when player inventories are full
• Custom items are now partially delivered if possible, while the rest is saved safely
• Claiming pending items now also supports partial delivery if the inventory is still too full
• Improved safety against item loss and duplicate issues in claim handling
• Improved TabCompleter behavior:
  • players now only see /ic claim
  • admin commands stay hidden from normal users
• Improved PlaceholderAPI support for menu, NPC, UI and reward setups

Config

New claim settings in config.yml:

claim:
  auto-claim-on-join: true
  reminder-on-join: true

This update is especially useful for servers using:

DeluxeMenus
FancyNPCs
mob reward systems
PlaceholderAPI-based menus and UI
servers with custom item drops and full-inventory situations

ItemCoreX 1.3 focuses heavily on safer custom item handling in real server environments.

Small hotfix update – sorry for the quick second release on the same day.

I found an issue after the previous version and decided to fix it immediately.

Changes in 1.2.5:

• Added new vanilla amount placeholders
• Improved DeluxeMenus support for Vanilla-only sell checks
• Custom ItemCoreX items with the same base material are no longer counted as normal Vanilla items
• This makes Vanilla shop checks much safer when using DeluxeMenus

Example: You can now use DeluxeMenus requirement checks like this:

type: '>=' input: '%itemcorex_vanilla_amount_BONE%' output: 1

This means DeluxeMenus checks the placeholder value from ItemCoreX instead of only checking the material itself.

That way:

• real Vanilla items are counted
• ItemCoreX custom PDC items are ignored
• deny_commands can work again together with safe Vanilla selling

Sorry again for the quick follow-up update, and thanks for the support.

ItemCoreX 1.2

Added

• Added /ic sellvanilla <player> <material> <amount> <money>
• Added clean separation between vanilla items and ItemCoreX custom items during selling, even if both use the same base material
• Added full language entries for sellvanilla
• Added sellvanilla to /ic info
• Added tab completion for sellvanilla
• Added automatic missing-key migration for:
  • config.yml
  • lang/en.yml
  • lang/de.yml

Improved

• Improved DeluxeMenus / FancyNPC shop compatibility
• Improved config and language reload workflow
• Improved update checker console output
• Improved plugin update safety for existing server installations

Fixed

• Fixed missing config and language keys not being restored automatically after updating to a newer plugin version

Compatibility

• Tested successfully on Paper 26.1.1

ItemCoreX 1.1

Added

• Added update checker for Modrinth releases
• Added admin join notification when a new update is available
• Added automatic recreation of missing files on startup and reload:
  • config.yml
  • customitems.yml
  • lang/en.yml
  • lang/de.yml
• Added /ic disable <id|key> <consume|interact|crafting|place|totem> <true|false>
• Added /ic disableall <id|key> <true|false>

Improved

• Improved /ic help output
• Improved tab completion for new commands
• Improved config and language reload workflow

Fixed

• Fixed has translation key issue
• Fixed update check fallback behavior when no public Modrinth release is available yet

ItemCoreX 1.0.0

Initial release of ItemCoreX.

This plugin provides a core system for custom items with a unique identity using PersistentDataContainer (PDC). Items are fully protected against fake duplicates and can be used safely across different systems.

Features

• Custom items with unique key + ID
• PDC-based identification (fake-proof)
• Full command system:
  • /ic create, delete, give, take
  • /ic sell (perfect for menus / NPCs)
  • /ic inspect (with debug info and flags)
• Control vanilla behavior per item:
  • Disable crafting usage
  • Disable consumption
  • Disable interaction
  • Disable placing
  • Disable totem effect
• Pagination system for item lists
• PlaceholderAPI support
• Full language system (EN/DE)
• Works with DeluxeMenus, FancyNPCs and LevelledMobs (I used it for these :)

Notes

This plugin is designed as a core dependency for server systems. Use commands instead of APIs to ensure maximum compatibility.