Add IPC knockout chem and hunger hallucination. (#32177)

* Add IPC knockout chem and hunger hallucination.

* Apply suggestions from CRUNCH review

Co-authored-by: CRUNCH <143041327+CRUNCH-Borg@users.noreply.github.com>
Signed-off-by: Alan <alfalfascout@users.noreply.github.com>

---------

Signed-off-by: Alan <alfalfascout@users.noreply.github.com>
Co-authored-by: CRUNCH <143041327+CRUNCH-Borg@users.noreply.github.com>

code/modules/hallucinations/effects/minor.dm

@@ -196,6 +196,30 @@
 	target?.update_health_hud()
 	return ..()
 
+/**
+  * # Hallucination - Fake Hunger
+  *
+  * Visually changes the target's nutrition status to something it shouldn't be.
+  */
+/obj/effect/hallucination/fake_nutrition
+	duration = list(10 SECONDS, 25 SECONDS)
+
+/obj/effect/hallucination/fake_nutrition/Initialize(mapload, mob/living/carbon/human/target)
+	. = ..()
+	if(target.nutrition > NUTRITION_LEVEL_FED)
+		target.nutrition_hud_override = pick(NUTRITION_HUD_OVERRIDE_HUNGRY, NUTRITION_HUD_OVERRIDE_STARVING)
+	else
+		target.nutrition_hud_override = pick(NUTRITION_HUD_OVERRIDE_FAT, NUTRITION_HUD_OVERRIDE_FULL) // You think you're full, but you're not.
+	if(istype(target))
+		target.handle_nutrition_alerts()
+
+/obj/effect/hallucination/fake_nutrition/Destroy()
+	target?.nutrition_hud_override = NUTRITION_HUD_OVERRIDE_NONE
+	if(ishuman(target))
+		var/mob/living/carbon/human/human_target = target
+		human_target?.handle_nutrition_alerts()
+	return ..()
+
 /**
  * # Hallucination - Examine Hallucination
  *

code/modules/hallucinations/hallucinations.dm

@@ -2,7 +2,8 @@ GLOBAL_LIST_INIT(hallucinations, alist(
 	HALLUCINATE_MINOR = list(
 		/obj/effect/hallucination/bolts = 10,
 		/obj/effect/hallucination/fake_danger = 10,
-		/obj/effect/hallucination/fake_health = 15,
+		/obj/effect/hallucination/fake_health = 10,
+		/obj/effect/hallucination/fake_nutrition = 10,
 		/obj/effect/hallucination/speech = 15,
 		/obj/effect/hallucination/audio/localized = 25,
 		/obj/effect/hallucination/trait_applier/medical_machinery = 25,

code/modules/mob/living/carbon/human/human_life.dm

@@ -782,6 +782,9 @@
 		nutrition_display.icon_state = null
 		return
 	nutrition_display.icon = dna.species.hunger_icon
+	if(nutrition_hud_override)
+		nutrition_display.icon_state = nutrition_hud_override
+		return
 	switch(nutrition)
 		if(NUTRITION_LEVEL_FULL to INFINITY)
 			nutrition_display.icon_state = "fat"

code/modules/mob/mob_vars.dm

@@ -205,6 +205,8 @@
 
 	/// Overrides the health HUD element state if set.
 	var/health_hud_override = HEALTH_HUD_OVERRIDE_NONE
+	/// Overrides the nutrition HUD element state if set.
+	var/nutrition_hud_override = NUTRITION_HUD_OVERRIDE_NONE
 	/// A soft reference to the location where this mob's runechat message will appear. Uses `UID()`.
 	var/runechat_msg_location
 	/// The datum receiving keyboard input. parent mob by default.

code/modules/reagents/chemistry/reagents/toxins.dm

@@ -956,6 +956,49 @@
 			M.Paralyse(50 SECONDS)
 	return ..() | update_flags
 
+/datum/reagent/frigidi
+	name = "Frigidi"
+	id = "frigidi"
+	description = "Budget industrial coolant appropriate for large spacecraft and detrimental to smaller machines. May cause microbattery damage."
+	reagent_state = LIQUID
+	color = "#444E90"
+	metabolization_rate = 0.8
+	penetrates_skin = TRUE
+	process_flags = ORGANIC | SYNTHETIC
+	taste_mult = 0
+
+/datum/reagent/frigidi/on_mob_life(mob/living/M)
+	if(!ismachineperson(M))
+		var/update_flags = STATUS_UPDATE_NONE | M.adjustFireLoss(1 * REAGENTS_EFFECT_MULTIPLIER, FALSE)
+		return ..() | update_flags
+	var/mob/living/carbon/human/target = M
+	switch(current_cycle)
+		if(1 to 5)
+			if(M.nutrition > NUTRITION_LEVEL_HUNGRY)
+				M.nutrition_hud_override = NUTRITION_HUD_OVERRIDE_HUNGRY
+				target.handle_nutrition_alerts()
+		if(6 to 9)
+			M.AdjustEyeBlurry(10 SECONDS)
+			M.nutrition_hud_override = NUTRITION_HUD_OVERRIDE_STARVING
+			target.handle_nutrition_alerts()
+		if(10)
+			M.emote("faint")
+			M.Weaken(10 SECONDS)
+		if(11 to INFINITY)
+			M.Paralyse(50 SECONDS)
+			if(prob(10))
+				var/obj/item/organ/internal/cell/microbattery = M.get_organ_slot("heart")
+				if(istype(microbattery))
+					microbattery.receive_damage(2, TRUE)
+	var/update_flags = STATUS_UPDATE_NONE
+	return ..() | update_flags
+
+/datum/reagent/frigidi/on_mob_delete(mob/living/M)
+	if(ismachineperson(M))
+		var/mob/living/carbon/human/target = M
+		M.nutrition_hud_override = NUTRITION_HUD_OVERRIDE_NONE
+		target.handle_nutrition_alerts()
+
 /datum/reagent/sulfonal
 	name = "Sulfonal"
 	id = "sulfonal"

code/modules/reagents/chemistry/recipes/toxins_reactions.dm

@@ -177,3 +177,11 @@
 	required_reagents = list("lsd" = 1, "teslium" = 1, "methamphetamine" = 1)
 	result_amount = 3
 	mix_message = SPAN_DANGER("After sparks, fire, and the smell of LSD, the mix is constantly spinning with no stop in sight.")
+
+/datum/chemical_reaction/frigidi
+	name = "Frigidi"
+	id = "frigidi"
+	result = "frigidi"
+	required_reagents = list("cryostylane" = 1, "w33d" = 1, "lube" = 1)
+	result_amount = 3
+	mix_message = "The mixture makes the container cool to the touch."