[Solved] spawnUnit VS overkill

[robin]

For my swarm alien I wanted to give the impression that you're thinning it out as you damage it.
So I used the spawnUnit function to create 3 "stages" (actual units) for the alien.
At the same time I want you to be able to obliterate it in one hit with fire/explosive.

I thought that overkill allowed to disintegrate units preventing them to spawn the children units.. but it doesn't seem to work: I set fire/explosive damage to 999 and the children unit is still there.

(I guess I can use just 2 stages but the 3 stages don't seem to be the issue).

So at this point I'm doubting that overkill has that prevention function at all. Does it?
Thanks

[Yankes]

Do you enabled overkill in weapon damage type? by default it disabled to be compatible with original game.
Another is "threshold" on what unit consider itself to be obliterated.

As side note now is possible to have arbitrary way to override spawn units in y-script, aka you could skip some stages if you do a lot of damage.

[robin]

On ruleset reference I can only find:

armor
    overkill (default=0.5; which AFAIK is the threshold you speak of).

item
    damageAlter
        IgnoreOverKill (default=false).

What is there to enable? Seems to be enabled by default to me.

Edit: wait, so I should set IgnoreOverKill=true? But to me setting true sounds like I'm DISABLING the overkill function. Kind of confusing the way it is explained.

[Yankes]

Probably bug in documentation, default is `true` as it do not allow overkill, this is because I initially make couple of damage types do overkill but I reverted it to not changing original game play.
Sorry for confusion.
(I updated wiki to match real default)

[Nord]

Important fact. Thans for explanation.

[robin]

Now it makes sense, thanks!

[Meridian]

Technically speaking, the default for `IgnoreOverkill` is `false`: https://github.com/MeridianOXC/OpenXcom/blob/oxce-plus/src/Mod/RuleDamageType.cpp#L33

And then it is set to `true`manually for most damage types: https://github.com/MeridianOXC/OpenXcom/blob/oxce-plus/src/Mod/Mod.cpp#L397
There is a whole table about it in the documentation, at the bottom of this section: https://www.ufopaedia.org/index.php/Ruleset_Reference_Nightly_(OpenXcom)#Item_Damage_Types

[robin]

Thank you, I missed that.