实验性实验性The Id to associate the callback with.
The callback that will be invoked when a spawner tests for the associated predicate key.
Registers an entity spawn callback to the provided key.
无法在只读模式下调用此函数，详见 WorldBeforeEvents。
This function can be called in early-execution mode.
实验性The Id to associate the callback with.
The callback that will be invoked when a spawner tests for the associated predicate key.
Registers an obstruction callback to the provided key.
无法在只读模式下调用此函数，详见 WorldBeforeEvents。
This function can be called in early-execution mode.
Container for spawn rules APIs. Allows for registering callbacks to extend the spawner system.
Required Experiments: