Suit Sets

Suit sets are a shorthand for registering a full set of armor items (helmet, chestplate, leggings, boots) from a single file, instead of creating four separate item files. All pieces share the same armor material, components, and creative tab placement, with the option to override those per slot.

To create a suit set, create a JSON file at:

addon/<namespace>/suit_set/<id>.json

The suit set is registered under the same ID, e.g. addon/mypack/suit_set/iron_spider.json registers mypack:iron_spider.

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Fields

Field	Type	Required	Description
armor_material	ArmorMaterial	Yes	The armor material used for all pieces. Accepts a registry ID or an inline definition. See Armor Materials.
slots	Object	Yes	Map of armor slot to slot config. Keys are helmet, chestplate, leggings, boots.
components	Object	No	Data components applied to all pieces. Same format as on individual items.
tab	Tab Placement	No	Creative tab placement for all pieces. Same format as on individual items.

Slot Config

Each entry in slots configures one armor piece.

Field	Type	Required	Description
item_name	String	No	The item ID path within the namespace. If omitted, defaults to <suit_set_id>_<slot> (e.g. iron_spider_helmet).
components	Object	No	Additional data components for this piece only, merged on top of the top-level components.
tab	Tab Placement	No	Creative tab placement for this piece only, overriding the top-level tab.

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Example

addon/mypack/suit_set/iron_spider.json

{
  "armor_material": "mypack:iron_spider",
  "tab": {
    "type": "add_after",
    "tab": "minecraft:combat",
    "target": "minecraft:netherite_boots"
  },
  "slots": {
    "helmet": {
      "item_name": "iron_spider_helmet"
    },
    "chestplate": {
      "item_name": "iron_spider_chestplate"
    },
    "leggings": {
      "item_name": "iron_spider_leggings"
    },
    "boots": {
      "item_name": "iron_spider_boots"
    }
  }
}

This registers four items: mypack:iron_spider_helmet, mypack:iron_spider_chestplate, mypack:iron_spider_leggings, and mypack:iron_spider_boots.

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To assign powers to a suit set, see Assigning Powers to Items.