The Medical Stasis Refactoring (#21311)

This PR implements a variety pack of new interactions for Medical Stasis
(stasis beds, stasis bags, and cryogenics), which should broadly extend
their utility. Not all of it is necessarily a good thing to have around,
such as for instance stasis slowing down the rate at which the liver
removes toxins. A few more organs have by extension been time
differentiated to allow for this change to take place.

As a general rule of thumb, most organ effects that are handled "per
second" are proportionally slowed down by the stasis rating of a given
source of medical stasis. This can be a good or a bad thing depending on
the context.

**Good effects of Stasis:**
- Slowing down appendicitis.
- Reducing the damage organs take per second from most per-second
sources.
- Making kidneys and livers deal less dangerous effects to their owner
when severely damaged.
- (Not in this PR, but was done in a previous PR): Brains lose BA
slower.

**Bad effects of Stasis:**
- Organs also heal slower from all per-second sources, this includes
chems. So while they take less damage, they're also taking less healing.
- The liver's rate at which it filters the blood is reduced. You get to
stay black-out drunk for 10x longer if placed in stasis.
- (Not in this PR, but was done in a previous PR): Brains heal their BA
slower.

---------

Signed-off-by: VMSolidus <evilexecutive@gmail.com>

code/modules/organs/internal/appendix.dm

@@ -4,39 +4,62 @@
 	parent_organ = BP_GROIN
 	organ_tag = BP_APPENDIX
 	possible_modifications = list ("Normal","Removed")
+
+	/**
+	 * The amount of seconds that have passed since starting an appendicitis event.
+	 * This number is set initially to 1 by the event, and increments by 1 each real life second.
+	 * While its at 0, no appendix calculations are performed.
+	 */
 	var/inflamed = 0
 
+	/// The amount of pain to take per second while in stage 1 of appendicitis.
+	var/stage_one_pain_per_second = 1
+
+	/// The amount of pain to take per second while in stage 2 of appendicitis.
+	var/stage_two_pain_per_second = 1.5
+
+	/// The amount of damage an appendix takes per second while in stage 2 of appendicitis.
+	var/stage_two_organ_damage_per_second = 0.006
+
 /obj/item/organ/internal/appendix/update_icon()
 	..()
 	if(inflamed)
 		icon_state = "[icon_state]inflamed"
 		name = "inflamed [name]"
 
-/obj/item/organ/internal/appendix/process()
+/obj/item/organ/internal/appendix/process(seconds_per_tick)
 	..()
 	if(!owner || !inflamed || !BP_IS_ROBOTIC(src))
 		return
 
+	if(owner.stasis_value > 0)
+		// Decrease the effective tickrate when in stasis.
+		// Basically, you die of appendicitis slower while in stasis.
+		seconds_per_tick /= owner.stasis_value
+
 	var/can_feel_pain = ORGAN_CAN_FEEL_PAIN(src)
-	inflamed++
-	if(can_feel_pain && prob(5))
-		owner.custom_pain("You feel a stinging pain in your abdomen!")
-		owner.visible_message("<B>\The [owner]</B> winces slightly.")
+	inflamed += seconds_per_tick
+
+	if(can_feel_pain)
+		if(prob(5))
+			owner.custom_pain("You feel a stinging pain in your abdomen!")
+			owner.visible_message("<B>\The [owner]</B> winces slightly.")
 		var/obj/item/organ/external/O = owner.get_organ(parent_organ)
 		if(O)
-			O.add_pain(10)
-	if(inflamed > 200 && prob(3))
-		take_internal_damage(0.1)
+			O.add_pain(stage_one_pain_per_second * seconds_per_tick)
+	if(inflamed > 400)
+		take_internal_damage(stage_two_organ_damage_per_second * seconds_per_tick)
 		if(can_feel_pain)
-			owner.visible_message("<B>\The [owner]</B> winces painfully.")
+			if(prob(3))
+				owner.visible_message("<B>\The [owner]</B> winces painfully.")
 			var/obj/item/organ/external/O = owner.get_organ(parent_organ)
 			if(O)
-				O.add_pain(25)
+				O.add_pain(stage_two_pain_per_second * seconds_per_tick)
 		owner.adjustToxLoss(1)
-	if(inflamed > 400 && prob(1))
+	if(inflamed > 800 && prob(1))
 		germ_level += rand(2,6)
 		owner.vomit()
-	if(inflamed > 600 && prob(1))
+	if(inflamed > 1200 && prob(1))
 		if(can_feel_pain)
 			owner.custom_pain("You feel a stinging pain in your abdomen!")
 			owner.Weaken(10)