* World: cache block AABBs directly in the world
this removes some indirection when fetching the AABBs, and also allows the AABB cache to live longer than the block cache.
In local testing this showed a 10-20% performance improvement, but it was difficult to properly measure.
* World: eliminate padding block checks in getCollisionBoxes()
this substantially improves the function's performance for small entities.
The padding of 1 block in each direction was previously necessary to account for blocks like fences, which might have an AABB larger than the cell containing them. However, by tracking this information in the collisionBoxCache directly, we can avoid the need to check this at the expense of slightly more complex code. This reduces the number of blocks checked for a moving item entity from 27-64 all the way down to 1-8, which is a major improvement.
Locally, this change allowed me to simulate 2100 item entities without lag, compared with 1500 on the previous commit.
This change improves the performance of calling an event with 0 handlers by about 10% with no other changes.
Since we have to access the list eventually anyway, we can cut out some unnecessary work by returning the handlers from the cache directly, instead of fetching the HandlerList for no reason.
This also improves the performance of Event::hasHandlers() by about 40%, which is pretty significant (120 ns -> 80 ns).
this needs to be dealt with before release otherwise we'll be stuck with FortuneDropHelper::grass()
this is the obvious solution and should have been done some time ago - stuff like flammability was already a problem for double tall grass anyway
this produced a 40% performance improvement in a simulation with 800 item entities.
If the items were all different, then this would still be a problem. However, many of the same unstackable items occupying the same space is a problem for SkyBlock farms, so this should improve performance for SkyBlock quite a bit.
this produced a 40% performance improvement in a simulation with 800 item entities.
If the items were all different, then this would still be a problem. However, many of the same unstackable items occupying the same space is a problem for SkyBlock farms, so this should improve performance for SkyBlock quite a bit.
this was requested and PR'd as far back as 2020 (see #3782).
Since no issue was filed about this, it became forgotten until #5946.
However, #5946 overcomplicates the solution to the problem, and breaks BC without an obvious reason.
until now, any thread crash would show as a generic crash since we aren't able to get the trace from the crashed thread directly. This uses some dirty tricks to export a partially serialized stack trace to the main thread, where it can be written into a crashdump.
This enables us to see proper crash information for async tasks in the crash archive (finally!!!) as well as being able to capture RakLib errors properly.
normally I would hesitate to reinvent the wheel, but we only need a tiny subset of the ASN.1 spec which is trivial to implement by itself.
I'd rather this than depend on another library that could introduce security vulnerabilities (I'm looking at you, jsonmapper).
closes#5935
this switches from a 'can be supported by' concept to a 'can stay at this position' paradigm, which requires way less boilerplate code.
there may be further improvements we can make from here, such as adding traits, but this is a good first step.
