func_nav_blocker

This entity is not in the

FGD by default.
See below for instructions on making it available.

Class hierarchy
CFuncNavBlocker ↳CBaseEntity
`nav_entities.cpp`

func_nav_blocker is a brush entity available in all Source games since Left 4 Dead. It is also in Half-Life 2: Deathmatch, Counter-Strike: Source, Team Fortress 2, and Black Mesa. It blocks nav areas touching its AABB to restrict NPCs / Bots from crossing over it.

Note:In

doesn't block nav areas automatically on spawn.

Warning:This entity applies its effect based on its AABB instead of its brush model. [ Edit ]

Keyvalues

Name (targetname) <string>[ Edit ]: The name that other entities refer to this entity by, via Inputs/Outputs or other keyvalues (e.g. parentname or target).
Also displayed in Hammer's 2D views and Entity Report. See also: Generic Keyvalues, Inputs and Outputs available to all entities

Team(s) to block (teamToBlock) <choices>

Team this entity should block.

-1 : Everyone
Warning: for everyone either edit FGD and use value -2 or turn off smart edit and set that, -1 is not valid and the nav blocker will not work
2 : Red , Survivors , Terrorists
3 : Blue , Infected , Counter-Terrorists

Note:

teamToBlock non-functional, always blocks either for both teams or for no team.

Affects Flow? (affectsFlow) <boolean> (only in ): Does this Nav Blocker block flow in the level? Only Nav Blocker with this enabled will cause flow recomputation on blocking/unblocking.; Important:When this is true don't block the only path to the level's goal with it or the flow won't be computed properly

Start Disabled (StartDisabled) <boolean> (not in ) !FGD: If set to false nav areas will be blocked right after spawning.