Abilities System/Module - Examples? Docs? Estimates?

[iniside]

On begin to “scratch” the skillsystem I thought about get a single static “skillthrower” ingame (what I think is near the built in one) because the skills on my game are not “class” related and can be learnt more or less freely (like with diablo 1 books). If you remember, the Warrior class could learn Fireball.

Actually classes (as a character classes :D), have little to do, with the fact that my abilities are instanced per actor. The main reason why I decided to go this route, is the fact how my abilities would be constructed in future like.

Final Damage = Intelligence10 + MagicPower0.5.
Or
Final Damage = Intelligence10 + (Intelligence (caster) - EnemyStrenght) * 2;
Or
if(MyIntelligence > EnemyIntelligence)
{
Final Damage = MyIntelligence+EnemyIntelligence2;
}
else
{
Final Damage = EnemyIntelligence*2;
}

You got the idea. Multiple attributes affecting single ability at the same time.

From what I gather GameplayAbility system allows for the same thing, but in their case it is achieved trough applying multiple GameplayEffects, which I didn’t found that appealing to me.I would have to maintain lot of them, along with lot of csv files.
In my case i dump everything into single Ability blueprint, which calculcate output damage upon being triggered.

There are two ways of doing it. Create elabroate system which will aggregate data from actors, or just instance ability per actor, and be done with it. The former allow me to directly access attributes from Causer/Target.
In the end it is simpler to code, and simpler to use with blueprints. Idk, if it is efficient.

So, going to Unreal… Imagine a Blueprint to each character with “92” animations and a switch (BLARGH), what also would be a hell from a waste due to my game “limit” the player to enter on a dungeon with just 7 skills enabled…

Idk, why you would need 92 or 109123 animations ;). Unless they all are unique animations.
You just assign needed animations on per ability basis. Something like attack animation, spell casting animation, or whatever you need.

So would be more “effective” assign just the 7 animations/effects on this skillthrower and on activate, make it “borrow” the character control from the player, play animation, effects, whatever and on finish give back the character’s control to the player…

You overthink the problem. Animations (more likely anim montages), are going to be played on pawn. Where you assign them is irrelevelant honestly, as long as you can access to play them. I would do it per ability basis, since at some point you might decide, that you really want different animations for different abilities. If you dump it all to single.
Nobody said that animations must be unique ;p.

Also, as you see, my skills are paid with “generic” resources exactly to allow all classes to trigger them (other thing that “I suppose” U4 built in system already predicts)…

Paying resources is not that complicated problem. Depending on complexity of your system. In my case it’s single array of FGSAbilityCost struct. Which contains attribute name name, and float cost, for resource.
then in one function I check if pawn have all needed resources, and then subtract them (if have everything required). That’s the easiest way to approach it.