Registers a script-based event handler for handling what happens when an entity loads.
World mutation
Early execution
Function that handles the load event.
Method to register an event handler for what happens when an entity loads.
Original function that was passed into the subscribe event, that is to be unregistered.
Unregisters a method that was previously subscribed to the subscription event.
Registers a script-based event handler for handling what happens when an entity loads.