Night Vision (With Tweaks)

[Nerev4r]

About The Pull Request

Code by @Ephemeralis I just work here.
Adds back night vision.

The Night Vision quirk now uses the same color_cutoffs NV approach that ashwalker/icecat eyes and the science NV goggles use, allowing for colored overlays in areas of adjusted darkness.
If selected, the NV quirk calculates appropriate color_cutoffs based on a tint you specify via the quirk preferences selector (the little cogwheel) meaning that your character's night vision gets tinted with said eye colour. Fancy!
    Technically, this means that picking fullbright colours like #FFFFFF provides the maximum possible mechanical improvement. I am atrociously bad at math and am not willing to bother with formulaic clamping of this so somebody else can balancejak that if they want to.
Night Vision's base potency is never in any circumstances worse than the old quirk. In most cases it is considerably better and now confers a maximum 9% darkness reduction at fullbright eye color, almost double that of the barely-visible 4.5% which was standard before.
Night Vision's potency is now increased by 75% for each level of flash_protect malus that your eyes have. If you have moth eyes (which are -2), you receive a whopping 150% bonus to your night vision's effective potency, bringing it up to a maximum of 22.5% reduction. For comparison, icecat/ashwalker eyes use 30%.
The Photophobia quirk can now be customised between 'sensitive' and 'hypersensitive' in the quirk character preferences menu, with sensitive giving -1 flash_protect (as it originally did) and hypersensitive giving -2 (equivalent to moth eyes).

So, here's how this should shake out from a character creation perspective:

If you want just a little bit of Night Vision similar to before, pick the Night Vision quirk alone.
    This costs a total of 4pts.
If you want better Night Vision but with a downside, pick Night Vision + Photophobia (Sensitive).
    This costs a total of 0pts.
If you want really good Night Vision at the expense of getting absolutely owned by flashes, laser pointers, flashbangs, stingbangs, explosions and tons of other things, pick Night Vision + Photophobia (Hypersensitive).
    This costs a total of 0pts.

Why It's Good For The Game

It's scary in the dark.

Changelog

🆑
add: The return of the Night Vision quirk.
/:cl: