this allows plugins (and maybe later on the core) to detect async worker overload and warn the user about potential performance issues.
I planned to implement such detection in the core directly, but it turned out to be a bit more complex than I anticipated. At the least, this API might be useful to someone else.
Previously, upwards movement wouldn't be considered, but downwards would, so if an entity bobbed up and down in the air for a while (e.g. while being comboed in PvP), the downwards distance would accumulate and deal a large amount of fall damage on touchdown.
This commit changes fall distance measurement to correctly account for upwards movement.
A better way of measuring fall distance would simply be to record the highest Y coordinate reached while in the air, and then measure the distance between that and the point of contact when landing. This would also remove the need to constantly update the fallDistance field. However, this would involve a BC break and will therefore have to wait until PM4.
it's not clear what this was actually supposed to represent, but it actually reports VmSize, which is already reported by "Total virtual memory". This line confuses users and is misleading.
On larger packets, this worsens compression ratio by 1-2%, but reduces CPU load due to compression by 15-20%. Higher levels than 6 are far more expensive for diminishing returns.
Level 5 produces a further 25-30% CPU reduction, but increases bandwidth usage by 20-25%, so 6 is the sweet spot.
PHPStan has no idea what is going on in this code because unpack() returns mixed[].
Possibly it might be a good idea to implement a dynamic return type extension for this.
non-class constants aren't stored during preloading phase and for some reason they aren't pre-resolved in opcode arrays. However, they are resolved by value when referenced by class constants, and class constants stick, so we can use those instead.
running composer update on 7.4 will generate a lock file using the newest dependencies which work for the current PHP version, which usually isn't desirable for a project like this where developers might be using newer PHP versions than users.
