How do I compare variable between two same objects?

Hello, I am currently making a strategy game in which you could combine units together to make them bigger.

For example, if you want to combine 2 units of archers, with one archer in the first unit, and 3 on the other one, you can make them overlap so that it makes a single unit of 4 archers.

For the moment I only added animations on archers, depending on how many there are in a unit (animation 1 has 1 archer, animation 2 has 2 archers, etc.. and it goes up to 4)

I added a variable called number, which modifies the animation (if number=1 => play animation 1, if number=2 => play animation 2 , etc...)

I would like to make this:

Condition:

Archer Unit 1 is overlapping Archer Unit 2

Archer Unit 1 Number + Archer Unit 2 Number < 4

Action:

Destroy Archer Unit 1

Add Archer Unit 1 Number to Archer Unit 2 Number

How do I compare variables between two same objects?

Don't know it's what you want but have a look:

drive.google.com/file/d/1cr7wgcFHA416qiJSP5SPl76D3MlbkfLG/view

The easiest way is to put all arrows into two families, arrowFirst, ArrowSecond. Then select your first arrow as arrowFirst and the second as arrowSecond and you can add and compare etc.

yours

Winkr7

Asmodean thanks for your answer!!!!!