Called when a player freezes an entity with the physgun.
This is not called for players or NPCs being held with the physgun.
1 Entity weapon
The weapon that was used to freeze the entity.
2 PhysObj physobj
Physics object of the entity.
3 Entity ent
The target entity.
4 Player ply
The player who tried to freeze the entity.
Allows you to override whether the player can freeze the entity