Logical entity

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Logical entity is a entity that has no visual component and whose position in the map doesn't affect its functionality in any way. They affect the game, creating or adding to various environmental and game controlling systems, such as AI managers, math counters and choreography.

In FGD they are defined using either @PointClass or @FilterClass and thus in Hammer placed by Hammer Entity Tool.

In-game they are usually subclasses of CLogicalEntity but not always (for example logic_auto, logic_script, logic_choreographed_scene)

Examples

Map properties

Entities that can be thought of as additional properties of the map and only one should exist.

• water_lod_control
• env_detail_controller
• game_ragdoll_manager
• shadow_control

Event detectors

Fires outputs based on some conditions occurring in-game like round starting, map loading for the first time or in certain gamemode.

• logic_auto
• logic_eventlistener
• info_gamemode

Game controlling systems

• info_director
• soundent
• terror_gamerules
• vote_controller

Note:Many are spawned automatically by the game

I/O logic

• logic_branch
• logic_case
• logic_relay

See also:  Logic gate

Filters

• filter_activator_name
• filter_activator_class
• filter_multi

See also:  Filters

Speech

• logic_choreographed_scene
• logic_scene_list_manager

Other

• env_fog_controller
• postprocess_controller
• color_correction
• env_dof_controller
• env_zoom

See also

• Point entity
• Brush entity
• Model entity
• Your First Entity