Common Lua Objects

AP contains a lot of different objects based on in-game content, including Items, Item Stacks, Fluids, Entities and more. This guide contains the most objects we have, including a description and every property with its type it can contain.

Item

Base ítem properties:

Property	Type	Description
tags	table	List of item tags
name	string	Registry key of the item

Item Stack

Represents a specific amount of an item with additional properties. Includes all Item properties plus:

Property	Type	Description
count	number	Amount of items in the stack
displayName	string	Display name of the item
maxStackSize	number	Maximum stack size
components	table	NBT component data
fingerprint	string	Unique identifier for the stack
tags	table	List of item tags
name	string	Registry key of the item
slot	number	(Optional) Slot number when in inventory

Fluid

Base fluid properties:

Property	Type	Description
tags	table	List of fluid tags
name	string	Registry key of the fluid

Fluid Stack

Represents a specific amount of fluid with additional properties. Includes all Fluid properties plus:

Property	Type	Description
count	number	Amount of fluid
displayName	string	Display name of the fluid
fluidType	table	FluidType properties
components	table	NBT component data
fingerprint	string	Unique identifier for the stack

Mekanism Chemical

Base chemical properties:

Property	Type	Description
tags	table	List of chemical tags
name	string	Registry key of the chemical
isGaseous	boolean	Whether the chemical is gaseous
radioactivity	number	Radioactivity level of the chemical

Mekanism Chemical Stack

Represents a specific amount of chemical with additional properties. Includes all Chemical properties plus:

Property	Type	Description
count	number	Amount of chemical
displayName	string	Display name of the chemical
fingerprint	string	Unique identifier for the stack

Entity

Property	Type	Description
id	number	Entity ID
uuid	string	Entity UUID
name	string	Entity name
tags	table	Entity tags
canFreeze	boolean	Whether entity can freeze
isGlowing	boolean	Whether entity is glowing
isInWall	boolean	Whether entity is in a wall

Living Entity

Inherits all properties from Entity, plus:

Property	Type	Description
health	number	Current health
maxHealth	number	Maximum health
lastDamageSource	string	Last damage source (or nil)

Animal

Inherits all properties from LivingEntity, plus:

Property	Type	Description
baby	boolean	Whether the animal is a baby
inLove	boolean	Whether the animal is in love state
aggressive	boolean	Whether the animal is aggressive
shareable	boolean	Whether the animal can be sheared (if applicable)

Position

Common block position object used for some filters and return values.

Property	Type	Description
x	number	X coordinate
y	number	Y coordinate
z	number	Z coordinate

Fluid Type

Property	Type	Description
viscosity	number	Fluid viscosity
density	number	Fluid density
canHydrate	boolean	Whether fluid can hydrate
canExtinguish	boolean	Whether fluid can extinguish
canDrownIn	boolean	Whether entities can drown in it
canSwim	boolean	Whether entities can swim in it
canPushEntity	boolean	Whether fluid can push entities
supportsBoating	boolean	Whether boats can float on it
canConvertToSource	boolean	Whether fluid can convert to source blocks
temperature	number	Fluid temperature