Added Shadekin Light Damage

[Raikyr0]

About the PR

Adds Light damage to Shadekin, they now take heat damage in the light and slowly heal in the dark. With a 10% slow in light and 10% speed boost in darkness.

:) I left heal when dead on so medical needs to fix them in a dark room.

Why / Balance

Lore reasons.

Technical details

Uses pre-existing components from Diona and Skia.

Changelog
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• add: Shadekin are now properly allergic to light again.

[kivdon]

I could be wrong, but don't Shadekin have no benefits currently? I know they have lower Crit and Dead thresholds than most.
Though I also don't remember what benefits they used to have in Floof.

[Arbitrated]

Shadekin don't breathe, which is normally a benefit but occasionally causes problems if they somehow take Asphyxiation damage.

The problem with this feature is that it's going to make it very difficult for a Shadekin to, well, [i]exist[/i] on a station, unless they're playing as a Maints Goblin and never step out into the public.

Do we know what lore is being referenced that indicates Shadekin are actively harmed, possibly even killed, by bright lights?

[Raikyr0]

It used to provide a detriment to mood, which directly affected their speed.

It is currently just set to the reverse of Diona in terms of damage taken and healed. (numbers adjustable)
I considered this because it would create additional roleplay when dealing with Shadowkin.

[Mnemotechnician]

Either make a server-wide poll to see if people would like this change or make it optional