Creating a unit between two existing ones

[Flow]

Right, so I want a spell which creates a unit between the caster and the target, who will in turn cast the actual spell and then disappear. However, I can't get the actual unit creation to work. I'm very unsure about how to get it in between two units, and right now it looks like this:



Unit - Create 1 UNIT_X for Neutral Passive at (Center of (Region((Position of (Casting unit)), (Position of (Targeted unit))))) facing (Position of (Target unit of ability being cast))


In other words, I used the "Conversion - Convert points to region" option.

Nothing appears between the two units, so I thought I'd consult the pros

 

[Drunken_God]

you would have to get the distance between both units and half it
(does your unit needs to be created in the middle?)

 

[Flow]

It doesn't have to be created *exactly* in the middle, anywhere between the two of them is fine.

 

[Drunken_God]

then do sth like(freehand):

set distance = (distance between (triggering unit) and (target unit)
set middle = {point with polar offset} (pos of triggerin unit offset by (distance/2) towards (angle between pos of triggering unit and pos of target))

create unit at middle...

 

[AceHart]

Set P1 = Position of (<some unit>)
Set P2 = Position of (<some other unit>)
Set X = (X of (P1) + X of (P2)) / 2.0
Set Y = (Y of (P1) + Y of (P2)) / 2.0
Set Point = Location from coordinates x and y
Unit - Create 1 <whatever> for <someone> at Point facing Default
Custom script: call RemoveLocation( udg_Point )
Custom script: call RemoveLocation( udg_P1 )
Custom script: call RemoveLocation( udg_P2 )


Then again, this is really one of those times where JASS is just simpler:

function BetweenUnits takes unit u1,unit u2 returns location
return Location((GetUnitX(u1) + GetUnitX(u2)) / 2.0, (GetUnitY(u1) + GetUnitY(u2)) / 2.0)
endfunction

Can be used from GUI too:
Set Unit1 = <this unit>
Set Unit2 = <that unit>
Custom script: set udg_Point = BetweenUnits( udg_Unit1, udg_Unit2 )
Unit - Create 1 <whatever> for <someone> at Point facing Default