How do I make 2 sprites "engage"

I need this for a combat system, so i have 2 sprites, Red and Blue.

They both have the variable Chance to attack(CTA), Chance to deffend(CTD)

When they get close I want them to share values of those variables to determine how will the fight turn out

For example:

They enter each others ranges

-Red's CTA is 5, Blue's CTA is 4

-1 for Red he now has 10% percent chance to go first (10% for each CTA point)

-The chance paid off Red goes first and attackes

Now, they "shared" CTA, but CTD is unique to each

-Blue's CTD is 4 (40% to effectivly deffend)

-he deffends himself

And then it goes again, until one of them loses

So, I am not sure how actually complex it is, it seems pretty hard to me, I tried but nothing good ever comes out of that , i usually end up here lol, so thanks in advance

I'm not really understanding what you are mean by "sharing" the variables?

You can use expressions to compare them, or use math.

ex:

While Red and Blue are in range -

If Red.CTA > Blue.CTA

And If random(100) < (Red.CTA-Blue.CTA)*10

And If random(100) > Blue.CTD*10 ACTION - Blue loses life

If Blue.CTA > Red.CTA

And If random(100) < (Blue.CTA-Red.CTA)*10

And If random(100) > Red.CTD*10 ACTION - Red loses life

Else repeat, until one is destroyed.

Except I think you've got some problems with your game logic to begin with.... If red has a higher CTA than blue, it only has a 10% chance to go first? Which means blue has a 90% chance to go first? You should probably work out your game logic a little more solidly before trying to code it.

Thanks this works nicely, but what i meant when i said shared was the situtation when i have more than one red and blue,

If i had 7 Reds vs 7 Blues and they engage each other how will it play out, I am not sure if the "for each"condition will be enough

P.S When i said 10% i meant 10% more, so 60% in total, But yes i did make a mistake, i just add 50 into the equation.

It's OK to have multiple instances of objects. Construct works by "picking" instances. In this case, you don't want a for each. The first condition that checks if red and blue are in range picks those instances - all following conditions and actions only affect the picked instances and the others are ignored.