Func nav blocker

Available in the Left 4 Dead series and Counter-Strike: Global Offensive. It is a brush entity that can block nav areas touching its AABB used to restrict NPCs from crossing over nav areas.

Todo: Any other games?

Todo: Use templates to display which games include this entity.

Note:The entity will NOT start to block automatically: it must first be activated with the BlockNav input.

Bug: For , When you make the func_nav_blocker block the navigation squares touching it, you must send UnblockNav (Yes not intuitive) along with BlockNav if the func_nav_blocker resides on the same navigation square(s) as a prop_door_rotating or func_physbox and perhaps others entities. Failure to do so will create the console error "Area navsquare# already blocked by a different team id. May produce flow bugs" ( Which is does). The navigation square numbers can be seen in-game by pointing at the nav square with z_debug 1 and nav_edit 1.   [todo tested in ?]

Keyvalues

Team(s) to block ([todo internal name (i)]) <choices>

Team(s) this entity should block

• -1 : Everyone
• 2 : Survivors, Terrorists
• 3 : Infected, Counter-Terrorists

Affects Flow? ([todo internal name (i)]) <boolean>

Does this func_nav_blocker block flow in the level? Only func_nav_blockers with this enabled will cause flow recomputation on blocking/unblocking.

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

Start Disabled (StartDisabled) <boolean>

Stay dormant until activated (with theEnableinput).

Note:This KeyValue is not available in Smart Edit and must be added manually.

Warning:Enabled/disabled state does not block or unblock NAV areas. Use BlockNav/UnblockNav

Recheck Breakables ([todo internal name (i)]) <boolean>

Appears to respond to any changes to breakables even though a BlockNav/UnblockNav input is fire anyway from the breakable prop anyway.

Note:This KeyValue is not available in Smart Edit and must be added manually.

Inputs

BlockNav <stringRedirectInput/string>

Starts blocking nav areas.

UnblockNav

Stops blocking nav areas.

EnableDisable:

Enable / Disable

Enable/disable this entity from performing its task. It might also disappear from view.

Warning:Enabled/disabled state does not block or unblock NAV areas.