Entity

An entity refers to anything that the player can interact with in an Id Tech 3 map. Weapons, items, NPCs, doors and switches are all types of entities.

The static geometry of a map is also an entity, known as "worldspawn".

Entity types

These are the types of entities in Jedi Outcast and Jedi Academy:

ammo
emplaced (emplaced guns)
func (doors, moving platforms and elevators, breakable walls, glass, etc.)
fx (effects such as smoke, fire and weather effects)
holocron (force power items)
info (player starting point)
item (medikits, shields, batteries, bacta, etc.)
light (light source)
misc (miscellaneous entities, including 3d models, gun turrets, security panels, security cameras)
NPC
path_corner (waypoints for func_train)
point_combat (combat location for NPCs)
rail (special entities for creating the moving train effect in t1_rail level in Jedi Academy)
ref_tag (location marker for scripts)
target (perform various functions when activated)
terrain
trigger
waypoint (used by NPCs for navigation)
weapon

func entities

func entities are composed out of map geometry (brushes and/or curve patches).

func_breakable

This is used to create breakable walls, grates, and other structures.

func_door

A simple door.

func_rotating

A rotating structure, eg. a fan. Can be switched on and off.

func_static

In JO and JA, these are typically used to create objects which are moved by ICARUS scripts. For example, elevators, moving platforms and ramps.

func_train

An object that moves along a pre-defined path, set by path_corner entities.

func_usable

A object that can be visible ("on") and invisible ("off"). Typically used (together with a trigger) to create switches.

fx_entities

These create local or global effects.

fx_rain, fx_snow and fx_wind create a global weather effect (appears throughout the entire map, in any "outside" areas).

fx_runner creates a local effect, from an .efx file.