Water Sponge quirk & Fatness Hiding Rework Tweaks

Added the Water Sponge quirk, it makes the user bloat when water is in their system and adds a few extra water-giving interactions to showers, vapors and water applications.
Tweaked fatness hiding, application has been separated from adjust_fatness who now calls it. Breathing also calls for hiders recalculations

GainStation13/code/mechanics/fatness.dm

@@ -42,14 +42,9 @@
 	if(client?.prefs?.max_weight) // GS13
 		fatness_real = min(fatness_real, (client?.prefs?.max_weight - 1))
 
-	if(fat_hiders)	//If a character's real fatness is being hidden
-		var/fatness_over = hiders_calc() //calculate the sum of all hiders
-		if(client?.prefs?.max_weight) //Check their prefs
-			fatness_over = min(fatness_over, (client?.prefs?.max_weight - 1)) //And make sure it's not above their preferred max
+	fatness = fatness_real //Make their current fatness their real fatness
 
-		fatness = fatness_real + fatness_over //Then, make their current fatness the sum of their real plus/minus the calculated amount
-	else			//If it's not being hidden
-		fatness = fatness_real //Make their current fatness their real fatness
+	hiders_apply()	//Check and apply hiders
 
 	if(client?.prefs?.weight_gain_extreme)
 		xwg_resize()
@@ -122,7 +117,7 @@
 
 /mob/living/carbon/proc/hiders_calc()
 	var/hiders_value = 0
-	for(var/hider in fat_hiders)
+	for(var/hider in fat_hiders)	
 		var/hide_values = hider:fat_hide(src)
 		if(!islist(hide_values))
 			hiders_value += hide_values
@@ -131,6 +126,15 @@
 				hiders_value += hide_value
 	return hiders_value
 
+/mob/living/carbon/proc/hiders_apply()
+	if(fat_hiders) //do we have any hiders active?
+		var/fatness_over = hiders_calc() //calculate the sum of all hiders
+		if(client?.prefs?.max_weight) //Check their prefs
+			fatness_over = min(fatness_over, (client?.prefs?.max_weight - 1)) //And make sure it's not above their preferred max
+		fatness = fatness_real + fatness_over //Then, make their current fatness the sum of their real plus/minus the calculated amount
+		if(client?.prefs?.weight_gain_extreme)
+			xwg_resize()
+
 /mob/living/carbon/proc/xwg_resize()
 	var/xwg_size = sqrt(fatness/FATNESS_LEVEL_BLOB)
 	xwg_size = min(xwg_size, RESIZE_HUGE)
@@ -158,3 +162,7 @@
 		return "Immobile"
 
 	return "Blob"
+
+/mob/living/carbon/human/handle_breathing(times_fired)
+	. = ..()
+	hiders_apply()

GainStation13/code/mechanics/water_sponge.dm

@@ -0,0 +1,51 @@
+/datum/quirk/water_sponge
+	name = "Water Sponge"
+	desc = "You can hold lots of water in you! Careful with showers!"
+	value = 0 //ERP quirk
+	gain_text = "<span class='notice'>You feel absorbant.</span>"
+	lose_text = "<span class='notice'>You don't feel absorbant anymore.</span>"
+	category = CATEGORY_FOOD
+	mob_trait = TRAIT_WATER_SPONGE
+
+/datum/reagent/water/on_mob_add(mob/living/L, amount)
+	if(HAS_TRAIT(L, TRAIT_WATER_SPONGE))
+		if(iscarbon(L))
+			var/mob/living/carbon/C = L
+			C.hider_add(src)
+	. = ..()
+
+/datum/reagent/water/on_mob_delete(mob/living/L)
+	if(HAS_TRAIT(L, TRAIT_WATER_SPONGE))
+		if(iscarbon(L))
+			var/mob/living/carbon/C = L
+			C.hider_remove(src)
+	. = ..()
+
+/datum/reagent/water/reaction_mob(mob/living/M, method, reac_volume)
+	. = ..()
+	if(HAS_TRAIT(M, TRAIT_WATER_SPONGE))
+		if(method == TOUCH)
+			M.reagents.add_reagent(/datum/reagent/water, reac_volume/2)
+		if(method == VAPOR)
+			M.reagents.add_reagent(/datum/reagent/water, reac_volume/3)
+	
+
+/datum/reagent/water/proc/fat_hide(mob/living/carbon/user)
+	return volume * 3.5
+
+/obj/machinery/shower/process()
+	..()
+	for(var/atom/movable/AM in loc)
+		if(iscarbon(AM))
+			if(HAS_TRAIT(AM, TRAIT_WATER_SPONGE))
+				var/mob/living/carbon/L = AM
+				L.reagents.add_reagent(/datum/reagent/water, 3)
+
+/mob/living/carbon/proc/water_check(datum/gas_mixture/breath)
+	var/breath_gases = breath.gases
+	if(breath_gases[/datum/gas/water_vapor])
+		if(HAS_TRAIT(src, TRAIT_WATER_SPONGE))
+			var/H2O_pp = breath.get_breath_partial_pressure(breath_gases[/datum/gas/water_vapor])
+			reagents.add_reagent(/datum/reagent/water, H2O_pp/10)
+			breath_gases[/datum/gas/water_vapor] -= H2O_pp
+

GainStation13/code/obj/items/bluespace_belt.dm

@@ -15,7 +15,7 @@
 		return
 	var/mob/living/carbon/U = user
 	if(slot == SLOT_BELT)
-		to_chat(user, "<span class='notice'>You put the belt around your waist and your mass begins to shrink...</span>")
+		to_chat(U, "<span class='notice'>You put the belt around your waist and your mass begins to shrink...</span>")
 		U.hider_add(src)
 	else
 		to_chat(user, "<span class='notice'>The belt is opened, letting your mass flow out!</span>")
@@ -25,8 +25,8 @@
 	..()
 	if(!iscarbon(user))
 		return
-	to_chat(user, "<span class='warning'>The belt is opened, letting your mass flow out!</span>")
 	var/mob/living/carbon/U = user
+	to_chat(U, "<span class='warning'>The belt is opened, letting your mass flow out!</span>")
 	U.hider_remove(src)
 
 /obj/item/bluespace_belt/proc/fat_hide(var/mob/living/carbon/user)

code/__DEFINES/traits.dm

@@ -205,6 +205,7 @@
 #define TRAIT_STRONGLEGS		"strong_legs"
 #define TRAIT_WEB_WEAVER		"web_weaving"
 #define TRAIT_METAL_CRUNCHER 	"metal_cruncher"
+#define TRAIT_WATER_SPONGE 		"water_sponge"
 
 //Hyper
 #define TRAIT_MACROPHILE		"macrophile" //likes the big

code/modules/surgery/organs/lungs.dm

@@ -102,6 +102,7 @@
 
 /obj/item/organ/lungs/proc/check_breath(datum/gas_mixture/breath, mob/living/carbon/human/H)
 //TODO: add lung damage = less oxygen gains
+	H.water_check(breath)	//GS13 Water Sponge quirk
 	var/breathModifier = (5-(5*(damage/maxHealth)/2)) //range 2.5 - 5
 	if((H.status_flags & GODMODE))
 		return

tgstation.dme

@@ -3097,6 +3097,7 @@
 #include "GainStation13\code\mechanics\metal_cruncher.dm"
 #include "GainStation13\code\mechanics\spells.dm"
 #include "GainStation13\code\mechanics\wand.dm"
+#include "GainStation13\code\mechanics\water_sponge.dm"
 #include "GainStation13\code\mechanics\web_weaving.dm"
 #include "GainStation13\code\mechanics\den abductors\console.dm"
 #include "GainStation13\code\mechanics\den abductors\purchaseble_goodies.dm"