Support for more advanced stuff like NBT copying wasn't added in this PR, as the NBT used by PM is currently an inconsistent mess and doesn't play nice with vanilla. In the interests of avoiding this mess propagating, it's been left for another time.
Adds PlayerEntityPickEvent a la PlayerBlockPickEvent
and Entity->getPickedItem().
This allows, for example, banning the usage of spawn eggs, without preventing opening of doors, without the need for item ID whitelists.
It also allows customizing the behaviour of item and block interactions when sneaking - it's now possible to force spawn eggs to work when sneaking, or force containers to open.
Finally, this also allows preventing any interaction at all without preventing block placement (by setting both to false). Since cancelling the event will typically prevent placement too (which might not be desired).
Side note: Blocks are now always synced when right-clicking on a block.
This differs from the previous behaviour, where the blocks were only synced when the action "failed".
However, since this change introduces a situation where the action may succeed but have different results than the client expects, it's best to just always sync blocks in this situation.
Fixes#3267
This field was added to the action in 1.21.20. Previously, the client would behave as if clicking the crafting result slot many times. Now it behaves more like recipe book shift-clicking.
again, very annoying that we have to account for this (it makes it easier for attackers to waste CPU time and memory), but we don't really have much of a choice.
some persona skins are insanely bloated and get split into hundreds of parts.
it's quite annoying that we have to accommodate this, but we can't keep allowing players to experience login timeouts without an obvious indication what's wrong.
this will be useful for preventing resource pack sending from overloading the network.
it's not the best solution for that (since it means the RTT will limit the pack download speed), but it's easier than implementing congestion control and will work fine in most cases.
this is a pain :(
It appears the client always sorts the keys in alphabetical order due to use of std::map. However I'm not sure of the exact ordering behaviour, so it needs to be investigated.
in particular, the information from VerifyLoginTask shouldn't be sent to clients, as it could contain sensitive information.
This change only affects disconnection screens. The server log shows the same amount of information as before (though formatted differently in some cases).
Sync-prepared batches account for the vast majority of outbound packets. Avoiding these useless objects further reduces the overhead of zero-compressed packets, as the creation of these objects is a significant part of the overhead for these cases.
closes#6157
this is supported since libdeflate 1.15 and ext-libdeflate 0.2.0.
Everyone should be using these versions by now anyway, and if they aren't, they should update.
libdeflate's level 0 compression is over 20 times faster than zlib, so this is a nice performance improvement.
