info_null is a point entity available in all Source games.
It is removed as soon as it spawns. It is primarily useful as a target for pointing lights at. Another possibility is to use it during map development as a way of keeping location-based notes within the VMF file, using the entity's comments box.
Because this entity isn't removed on compile, it still counts toward the entity limit until removed on map spawn.
- Entity Scripts
- Space delimited list of VScript files (without file extension) that are executed after all entities have spawned. The scripts are all executed in the same script scope, later ones overwriting any identical variables and functions.
- Script think function
- Name of a function in this entity's script which will be called automatically every 100 milliseconds (ten times a second) for the duration of the script. It can be used to create timers or to simulate autonomous behavior. The return value (if present) will set the time until the next call. Note: Try to avoid expensive operations in this function, as it may cause performance problems.