Entity:AddSpawnFlags
Description
Adds onto the current SpawnFlags of an Entity.
SpawnFlags can easily be found on https://developer.valvesoftware.com/wiki/.
See also Entity:RemoveSpawnFlags, Entity:SetSpawnFlags
Using SF Enumerations won't work, if this function is ran clientside due to the enumerations being defined only Serverside. Use the actual SpawnFlag number.
Arguments
Example
When a turret Entity is created, it adds the Out of Ammo
SpawnFlag, therefore it doesn't have ammo.
Example
When a turret Entity is created, it adds the Out of Ammo
and Fast Retire
SpawnFlag, therefore it doesn't have ammo and it goes into idle state faster.