Blood Regeneration Affects Hunger/Thirst

[Mnemotechnician]

Description

Makes natural blood regeneration use up some hunger and thirst, and halt completely when you are starving/dying of thirst.

This is necessary to fix two issues:

1. It being possible to feed off of your own blood, by repeatedly drawing your blood and injecting it back with a syringe. (I actually know a few people on floof who do that on a daily basis)
2. Hunger and thirst having no real impact on gameplay, besides giving you a mildly annoying depression overlay when low.

This PR also slightly refactors the blood deficiency trait so that it's no longer completely hardcoded in the bloodstream system.

Media

aaaaaa.mp4

Changelog

🆑

• add: Blood regeneration now uses up hunger and thirst, and comes to a halt when you are very hungry or thirst.
• fix: It is no longer feasible to drink your own blood to satiate your own hunger.

[Mnemotechnician]

Okay, I'm running into a minor problem here.

Blood restores 3 thirst and 1 hunger per unit when metabolized by a vampiric organ, and metabolizes into proteins in animal organs, which then restores 2 hunger and 1u of blood. This all would make the regeneration cost of normal blood sky-high, so I'm going to adjust how much hunger/thirst different blood types satiate instead.