[JASS] Odds and Ends questions

[DistantHaze]

Just throwing a few questions out there.

1) If you Set r = udg_rect, and then later Call DestroyRect (r), will udg_rect also be destroyed?

2) Is it possible to increase a unit's max life using the SetUnitState command?

3) How do you activate the in-game text messages, such as "Not enough lumber" and "Cannot summon there"?

4) If you use the variable local group g (initially, but without "= CreateGroup ()"), but then an actual group is created only later in the trigger and when certain conditions are met, is it necessary to Call DestroyGroup (g) and set g = null when these conditions are NOT met? For example:

function
local group (g)
loca integer z = GetRandomInt (1, 2)
if z == 2 then
set g = CreateGroup ()
blah
blah
blah
call DestroyGroup (g)
endif
endfunction

In this case, if z = 1, no group is really created, so is it still necessary to destroy and null the group g?

5) What is the most efficient and leak-proof way to display a message to a single player?

 

[Captain Griffen]

1)The object it points to will be destroyed (so no leak).
2) No, but there is a system that lets you do that.
3) Dunno, but I guess you can find the sound files somewhere and then use them like any other sound.
4) No
5) call DisplayTextToPlayer(Player(X), 0., 0., "STRING")

 

[PurplePoot]

1) yes

2) no, but you can use blade.dk's SetUnitMaxState function. Since wc3campaigns is down at the moment, you'll have to wait before getting it for a bit.

3) you don't. However, you can color your text yellow, change it's position on the screen, (with DisplayTextToPlayer) and play the error sound.

4) No, because the group isn't created otherwise.

5) DisplayTextToPlayer

Here's a little hint about that

native DisplayTextToPlayer          takes player toPlayer, real x, real y, string message returns nothing
function DisplayTextToForce takes force toForce, string message returns nothing
    if (IsPlayerInForce(GetLocalPlayer(), toForce)) then
        // Use only local code (no net traffic) within this block to avoid desyncs.
        call DisplayTextToPlayer(GetLocalPlayer(), 0, 0, message)
    endif
endfunction

EDIT: Blarg, griffen beat me to it


EDIT2: Here's the SimError function from (CasterSystem, I think)

function SimulateError takes player p,string st returns nothing
    local sound s = CreateSoundFromLabel("InterfaceError",false,false,false,10,10)
    if GetLocalPlayer() == p then
        if st !="" and st !=null then
            call DisplayTimedTextToPlayer(p,.52, -1,2,"|cffffcc00"+st+"|r")
        endif
        call StartSound(s)
    endif
    call KillSoundWhenDone(s)
    set s = null
endfunction

 

[Silvenon]

Here's the SimError function from (CasterSystem, I think)

Not from CasterSystem.....

Isn't it named SimError? Not SimulateError.

I don't understand this line:

if st !="" and st !=null then

How can a string be null?

Can anyone explain me what do coordinate parameters do in DisplayTimedTextToPlayer?

Uhmm.....doesn't DisplayTimedTextToPlayer already do the GetLocatPlayer thing?

 

[Captain Griffen]

Any variable can be null. Null is merely a value (constant). This value has no data in it.

 

[PurplePoot]

Can anyone explain me what do coordinate parameters do in DisplayTimedTextToPlayer?

Offsets where the text is placed. (So it doesn't always appear in the bottom-leftish area)