trigger

This entity is not in the FGD by default.
It should not be put directly in a map.

Class hierarchy
CBaseTrigger ↳CBaseToggle ↳CBaseEntity
triggers.cpp

trigger is an e2 available in all Source games. It's is a generic trigger entity.

As an entity prefix, trigger entities are spatial volumes (in other words, brushed-based entities) which trigger outputs depending on what touches them and how.

The two most common triggers are:

• trigger_once
• trigger_multiple

Several other trigger entities also exist.

See also

• Triggers