This allows other threads to notify the main thread to wake it up while it's sleeping between ticks, allowing reduction of processing latency.
Currently only RakLib and the CommandReader threads utilize this, but it's planned to extend it to more things in the near future.
CommandReader is now event-driven instead of poll-based - the server will not poll the CommandReader thread for messages each tick anymore.
RakLib utilizes this mechanism to get packets processed without delays to lower latency.
This now adds an extra dependency - `pocketmine/snooze` library contains the meat of the code used for this. See the Snooze repository for details.
this needs further changes (particularly to Furnace) to stop things abusing NBT for runtime data handling, otherwise performance is going to drop off a cliff.
This function is not declared in any useful places (like the CommandSender interface) and it is not present in Player (!!!). Additionally, an is-player check is better done with an instanceof so that type safety is enforced and IDEs can give auto-complete.
This is a BC break, but this is such a pointless function that it's probably not even worth mentioning.
* Enchantment: Split enchantment type data from instance data
This commit splits enchantments into (effectively) enchantment TYPES vs enchantment INSTANCES.
When applying an enchantment to an item, it only needs to know 2 things:
1. the enchantment ID (identifier) which is used to identify the TYPE
2. the enchantment LEVEL which is used to modify the enchantment's power IN THIS INSTANCE.
Therefore, the LEVEL is not an immutable property. However, all other properties of the currently-named "Enchantment" class are immutable type properties.
Currently, when applying an enchantment to an item, a copy of the enchantment object is created from the registry, and returned. This copies all of the properties contained by the type, which is obviously sub optimal.
