Adds a callback that will be called when the scripting environment is initialized for a World.
This function can't be called in read-only mode.
Removes a callback from being called the scripting environment is initialized for a World.
This function can't be called in read-only mode.
Manages callbacks that are run on the first tick of the World. Do note that this event may run multiple times within a session in the case that the /reload command is used.