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Introduction This PR is a second attempt at improving movement processing to fix #1215 , #2730 and more. This is significantly less complex than the previous attempt #2646 -- it gets rid of the movement buffering system entirely and instead relies on a simple rate limit counter to restrict on-the-fly movement processing. Movement is rate limited to a max average of 2 per tick. It allows up to 5 seconds' backlog to accommodate network lag. The rate limit counter is increased by 2 per tick and decreased once for every movement processed. This prevents movement processing being abused for denial of service attacks. Changes API changes This PR, while obviously highly beneficial for most current users, poses some BC-breaking issues because of changes to the internal Player API. Player->processMovement() (protected) has been removed. This is a BC concern for custom player classes which overrode it and called it as a parent. In addition, child implementations won't be called every tick any more, which could break some custom movement processing systems. Player->newPosition (protected) has been removed. This internal field may have been accessed by custom movement implementations. Player->isTeleporting (protected) has been removed. BC concern is same as previous point. Player->getNextPosition() (public) has been @deprecated. Added the following protected Player class members: int $moveRateLimit ?Vector3 $forceMoveSync handleMovement() processMostRecentMovements() revertMovement() Behavioural changes Player movement is now subject to less rubberbanding and has more reliable behaviour.
A highly customisable, open source server software for Minecraft: Bedrock Edition written in PHP
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This project is licensed under LGPL-3.0. Please see the LICENSE file for details.
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