isMasterClient where is ?

rre

On Unity you have a very useful property:

isMasterClient

there is something like that on Lua SDK ?

Thanks
Renato

vadim

Not exactly isMasterClient but similar method exist: https://doc-api.photonengine.com/en/corona/current/modules/loadbalancing.LoadBalancingClient.html#instance:myRoomMasterActorNr

You can compare the return value against actor Nr of the player in question.

rre

Thank you Vadim, now I have to found whats is my Nr ! Doesn't exists a function that return your number. ; )
There is a GetUserID() but the ID is not the nuber.

However, I found a solution, also reported on the Solar2D website (https://forums.solar2d.com/t/roommasteractor/351098) , which I repeat here:

Starts from example found in photon SDK (photon_corona_plugin_sample) where you create the class:

client

…
local client = LoadBalancingClient.new(appInfo.ServerAddress, appInfo.AppId, appInfo.AppVersion)
…

function client:checkInit()
    --return "S" slave or "M" master
    local nrMaster = 0
    local result = "S"

    if self:isJoinedToRoom() then
      nrMaster = self:myRoomMasterActorNr()
      
      for actorNr, actor in pairs(client:myRoomActors()) do
        if actor.actorNr == nrMaster and actor.isLocal == true then
          --I'm master
          result = "M"
          break
        else
          --I'm slave
        end
      end
    end
    
    return result
end
…

I think is better call also other 2 instances to have updated the state

…
function client:onActorJoin(actor)
self:checkInit()
end

function client:onActorLeave(actor)
self:checkInit()
end
…

I think the code should be better: avoid the ‘for’ loop.
But I’m not able to write a better one. ; (

If someone can help is appreciate.

Thanks
Renato

vadim

It's possible to get local actor without loop, with single call: https://doc-api.photonengine.com/en/corona/current/modules/loadbalancing.LoadBalancingClient.html#instance:myActor

rre

Thank you,
you probably think at something like this:

self:myRoomActors()[self:myRoomMasterActorNr()].isLocal == true

I don't think will will work!

be careful that the number of players in the room does not match the number of each player.

For example:
-> enter 2 players
[1] actor.actorNr 1 name Player 1
[2] actor.actorNr 2 name Player 2

in that case the code above will works

<-- exit player1
--> enter player3

you will have 2 actors on rom
[1] actor.actorNr 2 name Player 2
[2] actor.actorNr 3 name Player 3

so the myRoomMasterActorNr() will give you value 3 but on table you will find on row 2

crash!

Renato

vadim

I was sure that Actor object has a property returning actor nr. Unfortunately, it does not. Sorry.
But seems like your approach should work at least while the client is joint to the room.
self:myRoomActors() is a table with joined actor numbers as keys. Master actor nr should be among them.

rre

Yes, I confirm, MasterActor it is among these and it works.

And if there are few actors in a room, a 'for' cycle does not give problems, you don't notice delay. You could probably have problems were many.

Thanks for your help!

Renato