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This is a list of all events. It's possible that not all events are listed here, but this list wi...

This event isn't complete yet and can only do basic things. Adding dimension-specific features al...

Note: REI integration only works on Fabric in 1.16. In 1.18+, it works on both Forge and Fabric! ...

Sub-types onEvent('jei.subtypes', event => { event.useNBT('example:item') event.userNBT...

onEvent('ftbquests.custom_task.75381f79', event => { log.info('Custom task!') event.chec...

At server load, you can schedule anything to happen at later time. Within callback handler you ca...

Information Primitive types are objects that don't have a real class and don't inherit methods f...

Class of string objects, such as "abc" (and in JS 'abc' works as well)  Parent Object Variable...

Parent class of all Java objects.  Parent None (and itself at the same time, don't question it)...

Examples The most basic script to add a single recipe: onEvent('recipes', event => { even...

This event is fired when a tag collection is loaded, to modify it with script. You can add and re...

This event needs cleanup! Using it is not recommended. Information This event is fired when a c...

This event is the most basic event class, parent of all other events. Parent class Object Can ...

This script removes all items from world every 30 minutes. Only works in 1.12. // Create item wh...

With this script you can have FTB Utilities roles that change over time. Is for 1.12 only. Requi...

This is a startup_scripts/ event // Listen to item registry event onEvent('item.registry', even...

This server script adds items on first time player joins, checking stages. GameStages mod is not ...

This script shows how to use network packets: // Listen to a player event, in this case item rig...

This script is peak of human evolution. Whenever someone says "Creeper" in chat, it replies with ...

For more information on biomes field, see worldgen.add event page. onEvent('worldgen.remove', ev...