Add custom hit-shapes and TargetableOffsets to RA structures

[reaperrr]

RA equivalent to #13196.

[reaperrr]

Currently contains the code changes from #13196, so one of them will need a rebase (probably this one).

[pchote]

This changes the shape of armament muzzles as they rotate with facing. This was previously tuned to look correct, so I am assuming that this will break that. Unless this was specifically to fix that?

[pchote]

This regresses at least the turret firing offsets.

[reaperrr]

I forgot about the defenses when setting this, but it's easy to fix as all defenses use footprint offsets and therefore don't really need the 'top-down' pitch.

[pchote]

Some of the targetable postions (e.g. powr, both barracks, airfields) are floating outside the building artwork. Would you mind doing some tweaks to put them inside?

[reaperrr]

Some of the targetable postions (e.g. powr, both barracks, airfields) are floating outside the building artwork. Would you mind doing some tweaks to put them inside?

Well, it's a bit tedious, but I guess better to do it now than needing another follow-up PR.

[reaperrr]

Rebased and updated. Travis didn't trigger, but it passed make test locally and no longer contains code, so it shouldn't matter.

[pchote]

Needs a rebase

[reaperrr]

Rebased.
And updated with explosion ZOffset increase.

[MustaphaTR]

Tesla weaponary still target the center of actor, not closest target. I tested with Shock Trooper and Tesla Coil.

Sov Tech Center, Radar Dome, Techology Center and Tech Oil Derrick also looks like they want some adjusments of Target Positions according to artwork.

[reaperrr]

Tesla weaponary still target the center of actor, not closest target. I tested with Shock Trooper and Tesla Coil.

Fixed in #13475 to avoid cluttering this PR.

[reaperrr]

Updated:

[MustaphaTR]

👍

[pchote]

https://github.com/OpenRA/OpenRA/wiki/Changelog-(bleed)/_compare/e8198bdb0159f1cd261339a45bbfbfec884c69ef

[pchote]

In one of the followup balance PRs I think we should add TargetCenterPosition: true to artillery and cruisers. It looks rather odd for them to try and aim at the corner of a building when their inaccuraccy is comparable to the building size.

[reaperrr]

In one of the followup balance PRs I think we should add TargetCenterPosition: true to artillery and cruisers.

That will need another partial Attack*/Armament/projectiles rewrite, just sayin'.