The ActivatePhysics trigger command was a TODO. The client activates or
deactivates the object's physics component
(LWOPhysicsSystemComponent::msgActivatePhysics, 1.10.64 0x00ccf970);
the server now does the same to phantom physics: switching it off takes
the volume out of the physics world (dpWorld::DetachEntity, without
deleting it) and makes whatever was inside leave, switching it on adds
it back and whatever is inside enters on the next step. This lets
trigger driven volumes like the monument lasers turn on and off.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Removes the singleton inheritance from dpWorld.
Tested that crux prime, nimbus station, avant gardens and nexus tower still use navmeshes and physics and that physics volumes are still collided with.
