Although weather sync was added by Koncord to the rewrite in fd721143e2 in a way that used surprisingly few lines of code, it relied on the server requesting weather states every second from authority players and sending them to non-authority players, while also allowing only very sudden weather transitions across regions, i.e. if there was one player in the Ascadian Isles who had stormy weather, and another player with clear weather in the Bitter Coast Region walked across to the Ascadian Isles, that player was instantly made to have stormy weather with no kind of transition at all.
My approach solves both of those problems. It solves the packet spam by only sending weather updates to the server when weather changes happen or when there are new arrivals to a weather authority's region, and it allows for both sudden weather transitions when players teleport to a region and for soft, gradual transitions when players walk across to a region. It is inspired by my previous actor sync, and uses a WorldRegionAuthority packet to set players as region authorities in a similar way to how ActorAuthority sets players as cell AI authorities. Weather changes are created only by the region authority for a given region, and weather packets are also only sent by that authority.
However, it should be noted that gradual weather transitions are used by default in this implementation. To use sudden weather transitions, the serverside Lua scripts need to forward WorldWeather packets with the forceWeather boolean set to true. That is, however, already handled by our default Lua scripts in situations where it makes sense.
This should clarify the real meaning of the packet and its associated event.
The event itself has been renamed from OnPlayerKillCount to OnWorldKillCount.
The ActorPacket-sending functions now have sendToOtherVisitors and skipAttachedPlayer arguments, except for the ones for ActorList and ActorAuthority (because such arguments don't make sense for those).
The last received ActorList can now be copied into the write-only ActorList that can be sent in packets. Changing the pid of the write-only ActorList can now be done separately from clearing its contents.
The server can now make actors activate players and objects, at least in theory. In practice, OpenMW''s AiActivate package needs to be worked so it allows specific objects as targets instead of just refIds.
Unfortunately, default values set in the C++ code for our script function parameters don't actually seem to work, and they always default to false because they receive a nil value from Lua. As a result, to not break compatibility with previous scripts, I've decided to use a skipAttachedPlayer argument instead so it can default to false while still providing the same benefits that sendToAttachedPlayer provided.
Previously, there was a confusing separation between script functions that had a "broadcast" argument and script functions that had a "toOthers" argument.
Those with broadcast sent the packet to all players on the server when broadcast was true. Those with toOthers sent the packet to all players other than the packet's attached player.
The former was based on the pattern of the original SendMessage() script function. The latter more closely resembled RakNet's own broadcast argument as seen here:
https://github.com/TES3MP/CrabNet/blob/master/include/raknet/RakPeer.h#L219
This commit makes it so all sending functions have a sendToOtherPlayers argument that is false by default and a sendToAttachedPlayer that is true by default. This should simultaneously allow sending to be more intuitive, while not breaking previous existing scripts to a significant degree.
Additionally, this commit also reduces some code repetition for all instances of packet-fetching in script functions.
Add serverside script functions for determining the killers of both players and actors.
Use unsigned ints for script functions returning an object or actor's refNumIndex or mpNum.
Remove updateDeadState() from LocalPlayer and make its code part of updateStatsDynamic() for simplicity.
ActorDeath packets are sent for dead actors before their StatsDynamic packets. They contain the actor's deathReason in a manner similar to that of PlayerDeath packets.
A future commit will replace the deathReason with a variable named killer which will be an mwmp::Target.
