Tags
The tag event is a server event.
// Listen to item tag event
ServerEvents.tags('item', event => {
// Get the #forge:cobblestone tag collection and add Diamond Ore to it
event.add('forge:cobblestone', 'minecraft:diamond_ore')
// Get the #forge:cobblestone tag collection and remove Mossy Cobblestone from it
event.remove('forge:cobblestone', 'minecraft:mossy_cobblestone')
// Get #forge:ingots/copper tag and remove all entries from it
event.removeAll('forge:ingots/copper')
// Required for FTB Quests to check item NBT
event.add('itemfilters:check_nbt', 'some_item:that_has_nbt_types')
// You can create new tags the same way you add to existing, just give it a name
event.add('forge:completely_new_tag', 'minecraft:clay_ball')
// It supports adding tags to tags as well. Just prefix the second tag with #
event.add('c:stones', '#forge:stone')
// Removes all tags from this entry
event.removeAllTagsFrom('minecraft:stick')
// Add all items from the forge:stone tag to the c:stone tag, unless the id contains diorite
const stones = event.get('forge:stone').getObjectIds()
const blacklist = Ingredient.of(/.*diorite.*/)
stones.forEach(stone => {
if (!blacklist.test(stone)) event.add('c:stone', stone)
})
})
Recipes use item tags, not block or fluid tags. Even if items representing those are blocks, like minecraft:cobblestone
, it still uses an item tag for recipes.
// Listen to the block tag event
ServerEvents.tags('block', event => {
// Add tall grass to the climbable tag. This does make it climable!climbable!
event.add('minecraft:climable'climbable', 'minecraft:tall_grass')
})