GetLocalPlayer() ??

[MaaxeEvid]

whats GetLocalPlayer() ?

 

[PurgeandFire]

Well, GetLocalPlayer is used to do a certain function for one player such as this:

function Get_LocalPlayer takes nothing returns nothing
    call ShowUnitHide(GetTriggerUnit())
    if GetLocalPlayer() == Player(0) then
        call ShowUnit(GetTriggerUnit())
    endif
endfunction

It shows the unit only for the Player(0)...

EDIT: Note that it can cause desyncs when used in certain cases such as changing the gameplay or for killing a unit... etc.

 

[elmstfreddie]

Say you do kill a unit for only player 1, would that cause him to quit from the game, or would everyone go? Because you could make a fancy kick with that.

 

[phyrex1an]

It would most likely split him into another game, he would see it as everybody else left and everybody else would see at as he left. But that's not a promise, don't play with desyncs.

 

[PurgeandFire]

When killing the unit for a certain player, that is weird and barely makes sense to use, but I think it will desync and kickout all players except the player that sees the unit killed. But don't blame me if I'm wrong.

EDIT: I found a thread about LocalPlayer(), click here...

Diablo, funnily enough, that causes a desynch when the unit dies, not when it's created, if it has the same damage, life, etc (though the model, name, and scale can change)

(and the owner of the killer/dier won't get desynched)

 

[Sim]

Blizzard explains it efficiently in the blizzard.j

if (GetLocalPlayer() == whichPlayer) then
        // Use only local code (no net traffic) within this block to avoid desyncs.

Problem is, they don't only use local code in the whole function >_<

function SmartCameraPanBJ takes player whichPlayer, location loc, real duration returns nothing
    local real dist
    if (GetLocalPlayer() == whichPlayer) then
        // Use only local code (no net traffic) within this block to avoid desyncs.

        set dist = DistanceBetweenPoints(loc, GetCameraTargetPositionLoc())
        if (dist >= bj_SMARTPAN_TRESHOLD_SNAP) then
            // If the user is too far away, snap the camera.
            call PanCameraToTimed(GetLocationX(loc), GetLocationY(loc), 0)
        elseif (dist >= bj_SMARTPAN_TRESHOLD_PAN) then
            // If the user is moderately close, pan the camera.
            call PanCameraToTimed(GetLocationX(loc), GetLocationY(loc), duration)
        else
            // User is close enough, so don't touch the camera.
        endif
    endif
endfunction

That is "Pan camera as necessary" in GUI. As you guys may know, it causes desyncs. Notice the global variables.

 

[SFilip]

To the original question...
Every trigger, when executed, runs separately on every human player's PC.
The player who's PC is currently running the trigger is GetLocalPlayer.
As already stated this can be (ab)used in order to get something to happen for one player only.

 

[MaaxeEvid]

how can gui user pan camera w/o desync

 

[Sim]

You don't use the "as necessary" version.

Use "Pan camera for player".

 

[PurgeandFire]

It most likely won't desync since "panning" has been used in many cinematics. I don't think it will pan and cause a desync, though I'm not sure. This should work:

function PanCameraToLocForPlayer takes player whichPlayer, location loc returns nothing
    if (GetLocalPlayer() == whichPlayer) then
        // Use only local code (no net traffic) within this block to avoid desyncs.
        call PanCameraTo(GetLocationX(loc), GetLocationY(loc))
    endif
endfunction

 

[phyrex1an]

Notice the global variables.

I do, but it isn't those who cause the desync. They create an location with GetCameraTargetPositionLoc.
Desync free version of SmartCameraPanBJ is available here: http://wc3jass.com/viewtopic.php?t=73

 

[Sim]

Which can be considered a global "object" (aka outside from this trigger since it is created).

You're right though, it isn't a global variable!