Get rid of `iConditionBitFlag` in favor of a system of individual buff
objects that get composited to a bitflag on-the-fly.
Buff objects can have callbacks for application, expiration, and tick,
making them pretty flexible. Scripting languages can eventually use
these for custom behavior, too.
TODO:
- Get rid of bitflag in BaseNPC
- Apply buffs from passive nano powers
- Apply buffs from active nano powers
- Move eggs to new system
- ???
Was getting frustrated by the inconsistency in our include statements,
which were causing me problems. As a result, I went through and manually
re-organized every include statement in non-core files.
I'm just gonna copy my rant from Discord:
FOR HEADER FILES (.hpp):
- everything you use IN THE HEADER must be EXPLICITLY INCLUDED with the exception of things that fall under Core.hpp
- you may NOT include ANYTHING ELSE
FOR SOURCE FILES (.cpp):
- you can #include whatever you want as long as the partner header is included first
- anything that gets included by another include is fair game
- redundant includes are ok because they'll be harmless AS LONG AS our header files stay lean.
the point of this is NOT to optimize the number of includes used all around or make things more efficient necessarily. it's to improve readability & coherence and make it easier to avoid cyclical issues
Start by replacing `hitMob` with `takeDamage` interface function.
Simplify `pcAttackChars` a little by utilizing the new interface, then add more interface functions as needed.
A lot of the combat logic is tied to the `Mob` class. Need to start moving stuff over to CombatNPC.
UBSAN complains about the casting approach because it loads a 64-bit
integer from the defaultKeys string which isn't guaranteed to be 64-bit
aligned, which is undefined behavior.
CNSocket::kill() will now no longer call close() on already closed sockets.
close() should never be called on already closed file descriptors, yet
CNSocket::kill() was lacking any protection against that, despite its
use as both a high-level way of killing player connections and as a
means of ensuring that closing connections have been properly terminated
in the poll() loop.
This was causing close() to be erroneously called on each socket at least
one extra time. It was also introducing a race condition where the login
and shard threads could close each other's newly opened sockets due to
file descriptor reuse when a connection was accept()ed after the first
call to close(), but before the second one. See the close(2) manpage for
details.
Previously, terminating a running server from the terminal would
sometimes print a benign warning message if the server was currently
handling an incoming packet. This happened because CNServer::step()
would continue handling the packet after CNServer::kill() released the
activeCrit mutex. Now it first re-checks if active has been set to false
in the mean time after acquiring the mutex.
Revisiting this again; the issue was that the comparison operator was
facing the wrong way, so connections were being pruned every 30 seconds
or less. This was effectively a race condition kicking an unlucky player
every so often when pruning happened exactly during an attempt to enter
the game.
Now that the proper timeout is being enforced, I've reduced it to 5
minutes, down from 15, since it really doesn't need to be that long.
* Separate pruning frequency from timeout
* Pluralize CNShared map: login -> logins
* Increase connection timeout to 15 minutes
* Do not deallocate a nullptr in playerEnter()
* Kill connections rejected by playerEnter()
* Remove redundant inclusions of mutex headers in a few places
* Use a specialized connection object
* Copy the Player object less frequently
* Use a randomly generated serial key for shard auth
* Refuse invalid shard connection attempts
* Clean up connection metadata when a Player joins the shard
* Prune abandoned connections when they time out
This prevents logic errors related to being in chunk 0 0 0.
Also:
* Moved some duplicated chunk teleportation logic to a new helper
function
* Made ChunkPos into a proper class so it can default to INVALID_CHUNK
when default-initialized
* Reversed the inclusion order of Chunking.hpp and Entities.hpp to work
around problems with type definitions
Replaced all references to chunk->players and chunk->NPCs with
chunk->entities and all instances of the old NPCClass enum with
EntityType.
The server compiles but will not yet run properly.
This change subtly broke the poll() loop when a connection was removed,
because erasing an entry from fds would invalidate the iterator that
was still being used.
This reverts commit ec67cc6527.
CNProtocol, CNShared, CNStructs and Defines are now in core/.
CNLoginServer, CNShardServer and Monitor are now in servers/.
core/Core.hpp wraps all the core headers except for CNShared.hpp.
Defines.cpp has been renamed to Packets.cpp, and so has its
corresponding namespace, but not the header file. This is in preparation
for upcoming changes.
