Mob Templates

Mob templates are .json files located in config/onslaught/templates/mob. Subfolders are not detected and all template files must be placed in the root of this folder.

Each file can contain as many mob definitions as you like so long as the id of each definition is unique across all files.

Definitions

key	type	description
id	string	resource location of the mob
effects	Effect[]	an array of effects to apply to the mob when spawned
extraLootTables	string[]	additional loot to drop when the mob dies
nbt	NBT	NBT data used to generate the mob

{
  "zombie_basic": {
    "id": "minecraft:zombie"
  }
}

The zombie_basic key denotes a unique name for the mob definition and can be anything you like so long as it is unique across all mob template files. This name is used to reference the mob definition in invasion templates as well as Onslaught's summon command.

Effects

key	type	range	description
id	string	N/A	resource location of the effect
duration	int	[0,-)	effect duration in ticks
amplifier	int	[0,-)	effect amplifier
showParticles	boolean	N/A	show effect particles

{
  "zombie_effects": {
    "id": "minecraft:zombie",
    "effects": [
      {
        "id": "minecraft:invisibility",
        "duration": 1200,
        "amplifier": 3,
        "showParticles": true 
      }
    ]
  }
}

An array of effects can be defined inside of the effects array key.

Each of the defined effects will be applied to the mob when it is spawned.

Loot Tables

Mob definitions can define additional loot tables to roll when the mob dies.

The extra tables can reference existing loot tables or new loot tables located in the config/onslaught/loot folder.

{
  "zombie_loot": {
    "id": "minecraft:zombie",
    "extraLootTables": [
      "onslaught:wither_skeleton",
      "minecraft:blaze"
    ]
  }
}

Loot tables must be placed into a subfolder of the config/onslaught/loot folder.

For example, the template above will use a loot table in the location config/onslaught/loot/onslaught/wither_skeleton.json as well as the vanilla loot table for the blaze.

Due to the way Onslaught works, existing loot tables can be overridden. For example, if you place a new loot table in config/onslaught/loot/minecraft/blaze.json, it will override the vanilla loot table for the blaze mob.

For loot table syntax, see the Official Minecraft Wiki.

NBT

NBT can be applied to the mob using the nbt key.

{
  "zombie_nbt": {
    "id": "minecraft:zombie",
    "nbt": {
      "HandItems": [
        {"Count": 1, "id": "minecraft:diamond_sword"},
        {"Count": 1, "id": "minecraft:shield"}
      ],
      "ArmorItems": [
        {"Count": 1, "id": "minecraft:diamond_boots"},
        {"Count": 1, "id": "minecraft:diamond_leggings"},
        {"Count": 1, "id": "minecraft:diamond_chestplate"},
        {"Count": 1, "id": "minecraft:diamond_helmet"}
      ],
      "HandDropChances": [1.0, 1.0],
      "ArmorDropChances": [1.0, 1.0, 1.0, 1.0]
    }
  }
}

For entity NBT syntax, see the Official Minecraft Wiki