Diet/Allergy Rework & Refactor Pt2 (#7940)

* Diet/Allergy Pt2

* couple more reaction types

* refactor and improve

* Update Chemistry-Reagents.dm

code/__defines/species_languages.dm

@@ -36,6 +36,16 @@
 #define FUNGI		0x100	// Delicious shrooms.
 #define COFFEE		0x200	// Mostly here for tajara.
 #define GENERIC		0x400	// Catchall for stuff that doesn't fall into the groups above. You shouldn't be allergic to this type, ever.
+#define SUGARS		0x800	// For unathi-like reactions
+
+// Allergen reactions
+#define AG_TOX_DMG	0x1	// the classic 
+#define AG_OXY_DMG	0x2	// intense airway reactions
+#define AG_EMOTE	0x4	// general emote reactions based on affect type
+#define AG_PAIN		0x8	// short-lived hurt
+#define AG_WEAKEN	0x10	// too weak to move, oof
+#define AG_BLURRY	0x20	// blurred vision!
+#define AG_SLEEPY	0x40	// fatigue/exhaustion
 
 // Species spawn flags
 #define SPECIES_IS_WHITELISTED    0x1    // Must be whitelisted to play.

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

@@ -51,9 +51,11 @@
 	var/hunger_factor = 0.05								// Multiplier for hunger.
 	var/active_regen_mult = 1								// Multiplier for 'Regenerate' power speed, in human_powers.dm
 
-	var/taste_sensitivity = TASTE_NORMAL					// How sensitive the species is to minute tastes.
-	var/allergens = null							// Things that will make this species very sick
-	var/allergen_severity = 0.5						// How bad are reactions to the allergen? This is raw toxin damage per metabolism tick, multiplied by the amount metabolized
+	var/taste_sensitivity = TASTE_NORMAL							// How sensitive the species is to minute tastes.
+	var/allergens = null									// Things that will make this species very sick
+	var/allergen_reaction = AG_TOX_DMG|AG_OXY_DMG|AG_EMOTE|AG_PAIN|AG_WEAKEN		// What type of reactions will you have? These the 'main' options and are intended to approximate anaphylactic shock at high doses.
+	var/allergen_damage_severity = 1.2							// How bad are reactions to the allergen? Touch with extreme caution.
+	var/allergen_disable_severity = 3							// Whilst this determines how long nonlethal effects last and how common emotes are.
 
 	var/min_age = 17
 	var/max_age = 70

code/modules/reagents/Chemistry-Reagents.dm

@@ -25,6 +25,9 @@
 
 	var/affects_dead = 0	// Does this chem process inside a corpse?
 	var/affects_robots = 0	// Does this chem process inside a Synth?
+	
+	var/allergen_type = GENERIC	// What potential allergens does this contain?
+	var/allergen_factor = 1	// If the potential allergens are mixed and low-volume, they're a bit less dangerous. Needed for drinks because they're a single reagent compared to food which contains multiple seperate reagents.
 
 	var/cup_icon_state = null
 	var/cup_name = null
@@ -159,6 +162,26 @@
 				affect_touch(M, alien, removed)
 	if(overdose && (volume > overdose * M?.species.chemOD_threshold) && (active_metab.metabolism_class != CHEM_TOUCH && !can_overdose_touch))
 		overdose(M, alien, removed)
+	if(M.species.allergens & allergen_type)	//uhoh, we can't handle this!	
+		var/damage_severity = M.species.allergen_damage_severity*allergen_factor
+		var/disable_severity = M.species.allergen_disable_severity*allergen_factor	
+		if(M.species.allergen_reaction & AG_TOX_DMG)
+			M.adjustToxLoss(damage_severity)
+		if(M.species.allergen_reaction & AG_OXY_DMG)
+			M.adjustOxyLoss(damage_severity)
+			if(prob(2.5*disable_severity))
+				M.emote(pick("cough","gasp","choke"))
+		if(M.species.allergen_reaction & AG_EMOTE)
+			if(prob(2.5*disable_severity))	//this has a higher base chance, but not *too* high
+				M.emote(pick("pale","shiver","twitch"))
+		if(M.species.allergen_reaction & AG_PAIN)
+			M.adjustHalLoss(disable_severity)
+		if(M.species.allergen_reaction & AG_WEAKEN)
+			M.Weaken(disable_severity)
+		if(M.species.allergen_reaction & AG_BLURRY)
+			M.eye_blurry = max(M.eye_blurry, disable_severity)
+		if(M.species.allergen_reaction & AG_SLEEPY)
+			M.drowsyness = max(M.drowsyness, disable_severity)
 	remove_self(removed)
 	return
 

code/modules/reagents/Chemistry-Reagents/Chemistry-Reagents-Dispenser.dm

@@ -82,8 +82,6 @@
 
 	var/nutriment_factor = 0
 	var/strength = 10 // This is, essentially, units between stages - the lower, the stronger. Less fine tuning, more clarity.
-	var/allergen_type = GENERIC	// What potential allergens does this contain?
-	var/allergen_factor = 0.5	// If the potential allergens are mixed and low-volume, they're a bit less dangerous. Needed for drinks because they're a single reagent compared to food which contains multiple seperate reagents.
 	var/toxicity = 1
 
 	var/druggy = 0
@@ -93,6 +91,7 @@
 
 	glass_name = "ethanol"
 	glass_desc = "A well-known alcohol with a variety of applications."
+	allergen_factor = 0.5	//simulates mixed drinks containing less of the allergen, as they have only a single actual reagent unlike food
 
 /datum/reagent/ethanol/touch_mob(var/mob/living/L, var/amount)
 	if(istype(L))
@@ -141,13 +140,11 @@
 
 	if(halluci)
 		M.hallucination = max(M.hallucination, halluci*3)
-	
-	if(M.species.allergens & allergen_type)
-		M.adjustToxLoss(((M.species.allergen_severity*allergen_factor)*4) * removed)
 
 /datum/reagent/ethanol/affect_ingest(var/mob/living/carbon/M, var/alien, var/removed)
 	if(issmall(M)) removed *= 2
-	M.adjust_nutrition(nutriment_factor * removed)
+	if(!(M.species.allergens & allergen_type))	//assuming it doesn't cause a horrible reaction, we get the nutrition effects
+		M.adjust_nutrition(nutriment_factor * removed)
 	var/strength_mod = 1 * M.species.alcohol_mod
 	if(alien == IS_SKRELL)
 		strength_mod *= 5
@@ -188,9 +185,6 @@
 
 	if(halluci)
 		M.hallucination = max(M.hallucination, halluci)
-	
-	if(M.species.allergens & allergen_type)
-		M.adjustToxLoss((M.species.allergen_severity*allergen_factor) * removed)
 
 /datum/reagent/ethanol/touch_obj(var/obj/O)
 	if(istype(O, /obj/item/weapon/paper))

code/modules/reagents/Chemistry-Reagents/Chemistry-Reagents-Food-Drinks.dm

@@ -9,7 +9,6 @@
 	metabolism = REM * 4
 	ingest_met = REM * 4
 	var/nutriment_factor = 30 // Per unit
-	var/allergen_type = GENERIC	// What potential allergens does this contain?
 	var/injectable = 0
 	color = "#664330"
 
@@ -41,9 +40,6 @@
 	if(!injectable && alien != IS_SLIME)
 		M.adjustToxLoss(0.1 * removed)
 		return
-	if(M.species.allergens & allergen_type)
-		M.adjustToxLoss((M.species.allergen_severity*4) * removed)
-		return
 	affect_ingest(M, alien, removed)
 	..()
 
@@ -52,9 +48,7 @@
 		if(IS_DIONA) return
 		if(IS_UNATHI) removed *= 0.5
 	if(issmall(M)) removed *= 2 // Small bodymass, more effect from lower volume.
-	if(M.species.allergens & allergen_type)	//uhoh, we can't digest this!
-		M.adjustToxLoss(M.species.allergen_severity * removed)
-	else	//delicious
+	if(!(M.species.allergens & allergen_type))	//assuming it doesn't cause a horrible reaction, we'll be ok!
 		M.heal_organ_damage(0.5 * removed, 0)
 		M.adjust_nutrition(nutriment_factor * removed)
 		M.add_chemical_effect(CE_BLOODRESTORE, 4 * removed)
@@ -859,22 +853,16 @@
 	var/adj_sleepy = 0
 	var/adj_temp = 0
 	var/water_based = TRUE
-	var/allergen_type = GENERIC	// What potential allergens does this contain?
-	var/allergen_factor = 1	// If the potential allergens are mixed and low-volume, they're a bit less dangerous. Needed for drinks because they're a single reagent compared to food which contains multiple seperate reagents.
 
 /datum/reagent/drink/affect_blood(var/mob/living/carbon/M, var/alien, var/removed)
 	var/strength_mod = 1
 	if(alien == IS_SLIME && water_based)
 		strength_mod = 3
 	M.adjustToxLoss(removed * strength_mod) // Probably not a good idea; not very deadly though
-	if(M.species.allergens & allergen_type)	// Unless you're allergic, in which case...
-		M.adjustToxLoss(((M.species.allergen_severity*allergen_factor)*2) * removed)
 	return
 
 /datum/reagent/drink/affect_ingest(var/mob/living/carbon/M, var/alien, var/removed)
-	if(M.species.allergens & allergen_type)
-		M.adjustToxLoss((M.species.allergen_severity*allergen_factor) * removed)
-	else	//delicious
+	if(!(M.species.allergens & allergen_type))
 		M.adjust_nutrition(nutrition * removed)
 	M.dizziness = max(0, M.dizziness + adj_dizzy)
 	M.drowsyness = max(0, M.drowsyness + adj_drowsy)