Template:Entity

is a entity  present in.

This template goes at the top of every entity page.

Some notes

 * Don't use with   or   for . "since some/most Source games" sounds wrong.
 * If you have to use  or   for, specify the games using Template:Gamelistbox.   and   are the exact same except for one word.
 * cannot use  or.
 * Assume on this wiki that people know about how Portal 1 is based on Episodic.
 * To find out what games have an entity, check the "what links here" page. The games will be listed, if the list pages are up to date
 * We don't care which game necessarily got the entity first. Info_particle_system was introduced in ep2, but every game before has it too now, so "since episodic/ep2" is invalid.
 * Classnames with capital letters will not have their title displayed correctly or show which letters are capitalized in the template's actual text. These cases are extremely rare. Do not use the template and just write it all out (it isn't much) like on this page.
 * Remember this wiki currently supports 12 games:
 * Half-Life 2 (the three games below should be assumed to be part of "the Half-Life 2 series")
 * Episodic
 * HL2 Deathmatch
 * Portal 1
 * CS: Source
 * DOD: Source
 * TF2
 * Left 4 Dead
 * Left 4 Dead 2
 * Alien Swarm (not Reactive Drop)
 * Portal 2
 * CS:GO

Categories
Almost all the parameters add new categories.
 * All transclusions of the template add Category:Entities no matter what the parameters are.
 * adds Category:Internal entities.
 * adds Category:Brush entities or Category:Point entities.
 * adds Category:Source partial entities and forbids from adding any categories at all.
 * adds Category:Source partial entities and forbids and  from adding any categories at all.
 * and add these categories for their different values that are accepted:
 * : Category:Half-Life 2 entities
 * : Category:HL2 Episodic entities
 * : Category:Half-Life 2: Deathmatch entities
 * : No category, because there's only one page that would be present.
 * : Category:Day of Defeat: Source entities
 * : Category:Counter-Strike: Source entities
 * : Category:Counter-Strike: Global Offensive entities
 * : both of the above
 * : Category:Portal entities
 * : Category:Portal 2 entities
 * : both of the above
 * : Category:Team Fortress 2 entities
 * : Category:Left 4 Dead entities
 * : Category:Left 4 Dead 2 entities
 * : both of the above
 * : Category:Alien Swarm entities
 * : Category:Source partial entities
 * : Category:Source partial entities
 * [blank]: Category:Source base entities
 * will not add Category:Source partial entities automatically but it may be a good idea depending on context.

Examples
is a point entity present in all Source games.

is a point entity present in the Half-Life 2 Episodes.

is an internal brush entity present in all games since Left 4 Dead.

is a point entity present in Portal and Portal 2.

is a point entity present in the Half-Life 2 series, but not Portal.

is a point entity present in the Half-Life 2 series, but not Half-Life 2: Deathmatch.

is a brush entity present in all Source games.

is a point entity present in all games except Left 4 Dead and Left 4 Dead 2.