How to use local vars for everyone

[Executor]

Hi,

for ex.:

GetCameraTargetPositionX() == 500.

I want to check whether a player is looking at this position, but as GetCamera... is a local function this condition will return different values for every client and code launched in the "then" section will maybe cause desyncs.

sth. like this:

if GetCameraTargetPositionX(Player(0)) == 500. then
    call BJDebugMsg("Hey ALL, Player 1 is evil")
endif

Furthermore I'd like to store the camera data in global vars for everyone.

 

[Azlier]

You need to sync the data. Which is delayed.

Alternatively, you can cause desyncs.

 

[saw792]

Have a look at my MouseScroll thread in JASS Help... if/when that gets resolved (getting closer) you should be able to use the Sync library I posted there to do the job. It just doesn't work currently

 

[ZugZugZealot]

That function was designed for Single Player, and I have not found any work around to make it not desync. But hey, maybe someone knows and I don't.

 

[Jesus4Lyf]

That function was designed for Single Player, and I have not found any work around to make it not desync. But hey, maybe someone knows and I don't.

Lol, the classic answer is gamecache synching. I just don't have the code for it in hand this minute.

 

[Viikuna]

Well, it depends what you wanna do.

if GetCameraTargetPositionX() == 500. then

   /* this is like a GetLocalPlayer()==Player(x) block. 

     It rarely returns true for all players, so
     you can only do non synced stuff here, for example: */
   
   call SetUnitVertexColor( unit, r,g,b,a)
   call MoveLightningEx( lightning, x1,y1,z1,x2,y2,z2 )
   // etc. 
    
endif

If you need to do some stuff that requires syncing there, you need to do some syncing with gamecache or something. But it does have some problems, like Azlier and others mentioned.

edit.


You can do this:

set SomeGlobalVar=GetCameraTargetPositionX()
call DoSomething( SomeGlobalVar )

but the value will still be different for each player, so DoSomething cant do any stuff that requires syncing.

If you want to do something like this:

set SomeGlobalArray[ 1 ] = Player 1´s camera target X 
set SomeGlobalArray[ 2 ] = Player 2´s camera target X

You need to sync data.

 

[Jesus4Lyf]

This is my oldschool GetHost function (ripped off somewhere else).

function GetHost takes nothing returns player
local player h
local gamecache g = InitGameCache("wisph.w3v")
call StoreInteger(g,"Wisph","Host",GetPlayerId(GetLocalPlayer())+1)
call TriggerSyncStart()
call SyncStoredInteger(g,"Wisph","Host")
call TriggerSyncReady()
set h = Player(GetStoredInteger(g,"Wisph","Host")-1)
call FlushGameCache(g)
set g = null
return h
endfunction

It is kinda crap, but should teach you how to sync data with [LJASS]gamecache[/LJASS].
You can do it with things like unit selection too.
Off you go, now.

 

[Viikuna]

Syncing Player(0) camera position for all players would probably go like this:

if GetLocalPlayer() == Player(0) then
   call StoreInteger(g,"Player-0","Camera-X",GetCameraTargetPositionX())
   call StoreInteger(g,"Player-0","Camera-Y",GetCameraTargetPositionY())
   call SyncStoredInteger(g,"Player-0","Camera-X")
   call SyncStoredInteger(g,"Player-0","Camera-Y")
endif

edit. Oh noes, this is probably better. Sync them all at once and use Player Id as a key.

local integer i=GetPlayerId(GetLocalPlayer())
local string s=I2S(i)
call TriggerSyncStart()
call StoreInteger(g,"Player-"+s,"Camera-X",GetCameraTargetPositionX())
call StoreInteger(g,"Player-"+s,"Camera-Y",GetCameraTargetPositionY())
call SyncStoredInteger(g,"Player-"+s,"Camera-X")
call SyncStoredInteger(g,"Player-"+s,"Camera-Y")
call TriggerSyncReady()

edit. You might also wanna check that sync + mousescroll thread in this first page of Jass forums. That saw guy is making some syncing system, which is based on Toadcops TSync or something.

 

[Executor]

Hm the problem is that only one player knows if syncing is needed or not:

               static method TimerEx takes nothing returns nothing
            local thistype this = .front
            local real newx = GetCameraTargetPositionX()
            local real newy = GetCameraTargetPositionY()
            
            loop
                exitwhen this == -1
                if GetLocalPlayer() == .p then
                    call SetCameraQuickPosition(.QUICK_X,.QUICK_Y)
                endif
                
                call FlushStoredBoolean(.sync, "Sync", "Exec" )
                if (newx == .QUICK_X) and (newy == .QUICK_Y) then
                    call SetCameraPosition(.x , .y )
                    
                    call StoreBoolean(.sync, "Sync", "Exec", true)
                endif
                call TriggerSyncStart()
                call SyncStoredBoolean(.sync,"Sync","Exec")
                call TriggerSyncReady()
                                
                if GetStoredBoolean(.sync, "Sync", "Exec") then
                    call BJDebugMsg("TEST")
                endif
                
                set .x = newx
                set .y = newy
                set this = .next
            endloop
        
        endmethod

new try:

        static method TimerEx takes nothing returns nothing
            local thistype this = .front
            local player   l    = GetLocalPlayer()
            local string   key  = I2S(GetPlayerId(l))
            local real newx = GetCameraTargetPositionX()
            local real newy = GetCameraTargetPositionY()
            
            call StoreReal(.sync, "X", key, newx) 
            call StoreReal(.sync, "Y", key, newy) 
            call TriggerSyncStart()
            call SyncStoredReal(.sync, "X", key)
            call SyncStoredReal(.sync, "Y", key)
            call TriggerSyncReady()
            
            loop
                exitwhen this == -1
                set key = I2S(GetPlayerId(.user))
                if l == .user then
                    call SetCameraQuickPosition(.QUICK_X,.QUICK_Y)
                endif
                
                if (GetStoredReal(.sync, "X", key) == .QUICK_X) and (GetStoredReal(.sync, "Y", key) == .QUICK_Y) then
                    if l == .user then
                        call SetCameraPosition(.x , .y )
                    endif
                    call BJDebugMsg("TRUE")
                endif
                call BJDebugMsg("FALSE")
                
                set .x = newx
                set .y = newy
                set this = .next
            endloop
        
        endmethod

 

[Viikuna]

Okay:

 
                
                
                // This is how it works:
                call StoreBoolean(.sync, "Sync", "Exec", false)
                if (newx == .QUICK_X) and (newy == .QUICK_Y) then
                    call SetCameraPosition(.x , .y )
                    
                    call StoreBoolean(.sync, "Sync", "Exec", true)
                    call SyncStoredBoolean(.sync,"Sync","Exec") 
                     // Do syncing here
                endif

                /* This "Sync", "Exec" thing will be still false now, because syncing takes time, 
                    thanks to net traffic. It will change to true after some time.

                */
                if GetStoredBoolean(.sync, "Sync", "Exec") then // will return false
                    call BJDebugMsg("TEST")
                endif
                
                  /*  You can use TriggerSync start and TriggerSyncReady
                    Those work pretty much like TriggerSleepAction
                    They just halt the thread until data is synced.
                      
                    ( Im just not sure if those can be used in timer callbacks
                       Havent tested that stuff )     */

edit edited that stuff few times.

 

[Executor]

The problem is WHEN will it change to true. I try to react on Spacebar and this should be as fast and efficient possible.

 

[Troll-Brain]

You can't sync a local data quickly, live with that.
You can sync local datas, but it should be used like every 1 second or so.

 

[Executor]

Means the delay is to high to access a spacebar hit?

 

[Troll-Brain]

Basically, yes.