Dont understand this.

[BRUTAL]

for the example slide trigger in TT theres this part

static method create takes unit whichUnit, real tx, real ty returns Data
        local Data data = Data.allocate()
        local real Dx
        local real Dy
        local real distance
        local real angle
        
        set data.whichUnit = whichUnit
        set data.x = GetUnitX(whichUnit)
        set data.y = GetUnitY(whichUnit)
        
        set Dx = tx - data.x
        set Dy = ty - data.y
        
        set distance = RMinBJ(SLIDE_MAX_DISTANCE, SquareRoot(Dx * Dx + Dy * Dy))
        set data.ticks = R2I(distance / (SLIDE_SPEED*TT_PERIOD))  // <-------<< remember this formula
        
        set angle = Atan2(Dy, Dx)
        set data.dx = (SLIDE_SPEED*TT_PERIOD) * Cos(angle)
        set data.dy = (SLIDE_SPEED*TT_PERIOD) * Sin(angle)
        
        call SetUnitPathing( data.whichUnit, false )
        return data
    endmethod

what are tx, and ty? i dont see them anywhere except in the function agruments same with whichUnit

 

[trb92]

tx and ty are the coordinates of the target point of the slide. They are where the slide should end. They are used here

        set Dx = tx - data.x
        set Dy = ty - data.y

to determine the total distance that the unit needs to be moved.

 

[bOb666777]

Look closer?

set data.whichUnit = whichUnit
set data.x = GetUnitX(whichUnit)
set data.y = GetUnitY(whichUnit)

set Dx = tx - data.x
set Dy = ty - data.y

 

[BRUTAL]

oh okay thanks
yea, that didnt really show where t came from bob ><

 

[bOb666777]

Well, it's the only function you provided, we don't even see the function in which this one is called :\

 

[Nexor]

if a function takes something, it means that you call it with arguments after the functionname and that function can manipulate/change the value of those arguments.

function Something takes unit whichUnit returns boolean
    if GetWidgetLife(whichUnit) > .405 then
        return true
    else
        return false
    endif
endfunction

this function will decide whether a unit is alive.
you can call it like this: call Something(whichUnit)
and it'll return a boolean value