New to the Local Handle Vars system

12-10-2006, 08:26 PM

Ok. I've got the script for Local Handle Vars in my custom script. The)TideHunter( gave me some triggers a while ago that used that, and he said to put in the custom script something like this:

JASS:

function U2I takes unit u returns integer
    return u
    return 0
endfunction

So... Do I need to make one of those for every handle I intend on using this for? Eg: T2I takes timer returns integer etc. etc.

My other question...
How do I use this?

From what little I know about this, It's supposed to allow you to use local variables from one function into another usinh gamecache, but I have no idea how. Could anyone help?

12-10-2006, 08:33 PM

Themerion

You can create a script that looks like:

JASS:

function H2I takes handle h returns integer
    return h
    return 0
endfunction

All objects (units,timers,dialog windows,etc.) are handles. So you will only need H2I.

You can use it this way:

JASS:

function Aha takes nothing returns nothing
    local timer t=GetExpiredTimer()
    local string timerasstring=I2S(H2I(t))

    local unit u=GetStoredInteger(udg_cache,timerasstring,"the_unit")
    call KillUnit(u)
    // or use apply timed life, works better.

    set u=null
    call FlushStoredMission(udg_cache,timerasstring)
    call DestroyTimer(t)
    set t=null
endfunction

function KillUnitTimed takes unit u, real time returns nothing
    // udg_cache is an initialized GameCache
    // I2S means integer to string

    local timer t=CreateTimer()
    local string timerasstring=I2S(H2I(t))
    local integer unitasinteger=H2I(u)

    call StoreInteger(udg_cache,timerasstring,"the_unit",unitasinteger)
    call TimerStart(t,time,false,function Aha)

    set t=null

endfunction

12-10-2006, 08:38 PM	#3
darkwulfv	That's in there but I wasn't sure if it covered all of them. Thanks. And after looking, I think I've sort of got it. There are a bunch of functions called like "GetHandleUnit" so I think thats how you retrieve those stored units. Hmm. I have a trigger that uses it pretty well, I'll look into it.

12-10-2006, 08:40 PM	#4
wyrmlord	You can use just 1 function to convert a handle to an integer, but you need a function for each handle type to convert them back.

12-11-2006, 06:27 PM	#5
blu_da_noob	To explain why, you need to understand the extending concept. To put it simply, all units are handles, but not all handles are units.