Remove Direct Hit Limb Penalty against Xenos

[fira]

About the pull request

Simple version

Selecting a body part on doll at bottom right applies an inherent accuracy debuff to shots (an hand is harder to hit than chest).

This penalty still applied to sprite-click attacks on Xenomorphs, despite the localized damage having no effect.

This means that you'd have to constantly reset your aimed part to chest every time you try to shoot a Xeno, or would suffer a "free" penalty.

Detailled version

Old flow went as follow:

• Get base Hit Chance and Roll
• If it's only a near hit, or target's not the shot clicked target, the shot targeted limb is reset to a random one
• Hit chance receives a penalty based on aimed limb
• We proceed checking hit chance vs roll

Because of the above problem this is changed to:

• Get base Hit Chance and Roll
• If it's a near hit (including limb penalty), a near xeno hit (excluding limb penalty), or not the sprite-clicked target, aimed limb is reset to a random one
• Else if the target is a xeno and it was a proper direct hit, there is no penalty -- functionally similar to a chest shot
• Else Finally, apply per-limb penalty as usual
• We proceed checking hit chance vs roll

Explain why it's good for the game

Avoids an invisible noobtrap debuff for just about everyone in the game that isn't in the know - and the neccessity to constantly reset targeting to chest for medics.

Testing Photographs and Procedure

The problem was tested by a player on discord -- the fix i tested just was spawning stuff and shooting up the place observing RNG misses. I did not take detailed statistics over time to confirm.

Changelog

🆑
fix: Sprite-click shots onto Xenos are no longer affected by limb-targeting penalty, because it was an accuracy debuff when there is no inherent benefit to targeting Xeno limbs.
/:cl: