SpawnerSpawnEvent

Called when an entity is spawned into a world by a spawner.

If a Spawner Spawn event is cancelled, the entity will not spawn.

当刷怪笼生成实体时触发。

如果本事件被取消，则涉事实体将不会生成。

译注：无文档。该方法用于获取涉事刷怪笼方块。