Component

class

Typed data every block of a type keeps from its placement, listed by StaticBlock.components; saved by field name and part of the sim state

load-only Usable only while mods load. The game seals these members once loading finishes, so a call or a write from a running world raises an error.

Fields

Name	Type		Description
fields	load-only	table<string, string>	Field name to its type: "integer", "boolean", "item" or "string". Fields go in name order; --!sim sees integer, boolean and item fields as columns, an item as its sim_id
version	load-only	integer	Version of the fields, 1 by default; a save written by a lower version goes through migrate
migrate	load-only	function?	migrate(fields, version) gets the fields a save holds, by name with items as their names, and the version that wrote them; it returns the fields for the current version

Standard members (5)

These members are available on all classes of this kind.

Component.cast(object)	Trying to cast Object into Component
Component.get_class()	Return Component class object
Component.find(name)	Looks Component up in db, nil when there is none
Component.get(name)	Takes Component from db, reports a miss to the log
Component.reg(name, spec) load-only	Register a new Component static object, or take the registered one of that name

Inherited from Prototype (2)

name read-only Object name
Prototype:is_valid() Returns false once the underlying engine object has been destroyed

Inherited from Object (1)