Fixed compatability with 5.5.0 by updating process.go: moved packed forwarding code into local func forward(pkt mt.Pkt) changed versionString from "5.5.0-dev-83a7b48bb" to "5.4.1-dev-b2596eda3" to reflect actual version

This adds ability...

• to register on a ToCltBlkData Packet using RegisterBlkDataHandler
• to tell server to remember nodeid based on nodename using RegisterNeedNode
  • to get registerd all ids using GetNodeId

Is it possible to add examples to the config.jason? I don't know how to add my Servers to the Proxy. I think an example would help People to Setup their MT Network.

It could as well be called from an init function (or be an init function). Importing packages don't need access to this since reloading plugins is not supported.

It makes sense to keep track of some packets like OverrideDayNightRatio to minimize network usage. There should be a configuration setting that enables this for things that have to be reset almost always (e.g. FormspecPrepend) so that the user can choose between RAM and network usage.

This aims to overwrite node interaction for specific nodes, specified by Itemstring.

This is done by...

• implementing a BlkData Handler to handle ToCltBlkData packets using RegisterBlkDataHandler
• implementing a itemstring -> nodeid / param0 cache for specific nodes (RegisterCacheNode)
• and then by handling interact packages and checking if the node interacted with is registered by some NodeHandler.

Some other functions that are a thing:

• GetMapCache which returns a copy of the map cache (map[[3]int16][4096]mt.Content)
• IsCached which returns true, if a node is cached
• RegisterCachedNode which tells the ms to save when the specified itemstring is defined
• GetNodeId which returns all nodeid's corresponding to a cached itemstring (map[mt.Content]bool)

This fixes the "Invalid serialisationVer" and "Invalid protoVer" problems with most minetest clients. This also removes the "latest" from latestSerialisationVer and latestProtoVer, to minimize misunderstanding of these values.

plugin_AO adds:

• the ability to register on AOMsgs / AOAdds / AORms & overwrite them (RegisterAOHandler)
• functions to reserve global / server / client AOIDs (GetGlobalAOID, GetServerAOID, ClientConn.GetFreeAOID)

Example Usecases:

• Custom AOs registered just on multi-server

Pluginapi to overwrite node interactions Use cases: obvious

Please keep in mind that this is not finished yet, I just want to have it as a PR to discuss

The loop currently tries to connect to all fallback servers until it encounters an error or reaches the end of the list. Even if no attempts were successful the kick packet is not forwarded to the client (the code below the fallback code is responsible for that, but the function returns before it gets to run). Also errors returned by Hop are not necessarily critical. Even if the proxy just failed to save the last server in the auth db it returns an error although the connection is completely fine. Thus the player should be warned, but that's it. #91 is yet another issue with the fallback implementation.

The error message in chatcommands should probably be edited too.

@DerZombiiie

Things to do when 5.5.0 is released and supported by mt:

• [ ] Bump protocol version to 40
• [ ] Bump serialization version to 29
• [ ] Bump formspec version to 5