Func nobuild
Entity Description
A func_nobuild entity will restrict an engineer from building in the specific area it contains.
Availability
This brush-based entity is exclusive to Team Fortress 2.
Normal Use
A func_nobuild area should come in contact with the top side of the brush you don't want the engineer to build upon. The func_nobuild should also be at least 96 units high to keep an engineer from bypassing it by jumping above it. Keep in mind that a func_respawnroom entity also blocks an engineer's ability to build and thus a func_nobuild does not have to be placed in the same location as a func_respawnroom.

Ledges
High ledges present an element a bit different from a standard floor surface. If there is a ledge you do not want an engineer to build upon, the func_nobuild brush should not only be 96 units above the surface, but 96 units below the surface as well, with the func_nobuild brush overlapping the ledge. It should also stick out 96 units from all accessible sides of the ledge. If the ledge is less then 96 units above a larger flat surface, the func_nobuild only needs to touch the top of the surface the ledge is above.
Example Map
An example map demonstrating the entity in use can be downloaded here: http://www.mediafire.com/?vl4dxzxktzf
Keyvalues
Inputs
- Template:I targetname
- EnableDisable:
- Enable / Disable
- Enable/disable this entity from performing its task. It might also disappear from view.
It seems that enable and disable don't actually affect this entity. Tested with build 3686 on Jan 1 2009. Instead you can use the setactive and setinactive inputs to turn this entity "on" or "off".