Mobility exoskeleton & modules, max fat genital sizes

Added the mobility exoskeleton, weak MODsuit that comes with mobility-related modules.
Added mobility-related modules
Added preference for max genital sizes due to fat increase

GainStation13/code/mechanics/helplessness.dm

@@ -5,7 +5,7 @@
 	return ..()
 
 /datum/species/can_equip(obj/item/I, slot, disable_warning, mob/living/carbon/human/H, bypass_equip_delay_self)
-	if(HAS_TRAIT(H, TRAIT_NO_BACKPACK) && slot ==ITEM_SLOT_BACK)
+	if(!istype(I, /obj/item/mod) && HAS_TRAIT(H, TRAIT_NO_BACKPACK) && slot ==ITEM_SLOT_BACK)
 		to_chat(H, "<span class='warning'>You are too fat to wear anything on your back.</span>")
 		return FALSE
 
@@ -13,8 +13,13 @@
 		to_chat(H, "<span class='warning'>You are too fat to wear [I].</span>")
 		return FALSE
 
-	if(HAS_TRAIT(H, TRAIT_NO_MISC) && (slot == ITEM_SLOT_FEET || slot ==ITEM_SLOT_GLOVES || slot == ITEM_SLOT_OCLOTHING))
+	if(!mod_check(I) && HAS_TRAIT(H, TRAIT_NO_MISC) && (slot == ITEM_SLOT_FEET || slot ==ITEM_SLOT_GLOVES || slot == ITEM_SLOT_OCLOTHING))
 		to_chat(H, "<span class='warning'>You are too fat to wear [I].</span>")
 		return FALSE
 
 	return ..()
+
+/datum/species/proc/mod_check(I)
+	if(istype(I, /obj/item/mod) || istype(I, /obj/item/clothing/head/mod) || istype(I, /obj/item/clothing/gloves/mod) || istype(I, /obj/item/clothing/shoes/mod) || istype(I, /obj/item/clothing/suit/mod) )
+		return TRUE
+	return FALSE

GainStation13/code/mechanics/water_sponge.dm

@@ -49,7 +49,7 @@
 		if(breath)
 			var/pressure = breath.return_pressure()
 			var/total_moles = breath.total_moles()
-			#define PP_MOLES(X) ((X / total_moles) * pressure)
+			//#define PP_MOLES(X) ((X / total_moles) * pressure)
 			#define PP(air, gas) PP_MOLES(air.get_moles(gas))
 			var/gas_breathed = PP(breath,GAS_H2O)
 			if(gas_breathed > 0)

GainStation13/code/modules/mob/living/belly.dm

@@ -7,6 +7,7 @@
 	slot 					= ORGAN_SLOT_BELLY
 	w_class 				= 3
 	size 					= 0
+	var/max_size			= 0
 	shape 					= DEF_BELLY_SHAPE
 	var/statuscheck			= FALSE
 	genital_flags 			= UPDATE_OWNER_APPEARANCE
@@ -65,6 +66,7 @@
 	else
 		color = "#[D.features["belly_color"]]"
 	size = D.features["belly_size"]
+	max_size = D.features["max_belly_size"]
 	starting_size = D.features["belly_size"]
 	shape = D.features["belly_shape"]
 	inflatable = D.features["inflatable_belly"]

GainStation13/code/modules/mob/living/species.dm

@@ -7,11 +7,23 @@
 	var/obj/item/organ/genital/breasts/breasts = H.getorganslot(ORGAN_SLOT_BREASTS)
 
 	if(butt)
-		butt.modify_size(size_change)
+		if(butt.max_size > 0)
+			if((butt.size + size_change) <= butt.max_size)
+				butt.modify_size(size_change)
+		else
+			butt.modify_size(size_change)
 	if(belly)
-		belly.modify_size(size_change)
+		if(belly.max_size > 0)
+			if((belly.size + size_change) <= belly.max_size)
+				belly.modify_size(size_change)
+		else
+			belly.modify_size(size_change)
 	if(breasts)
-		breasts.modify_size(size_change)
+		if(breasts.max_size > 0)
+			if((breasts.cached_size + size_change) <= breasts.max_size)
+				breasts.modify_size(size_change)
+		else
+			breasts.modify_size(size_change)
 
 	H.genital_override = TRUE
 	H.update_body()
@@ -38,7 +50,7 @@
 
 /datum/species/proc/handle_helplessness(mob/living/carbon/human/fatty)
 	var/datum/preferences/preferences = fatty?.client?.prefs
-	if(!istype(preferences))
+	if(!istype(preferences) || HAS_TRAIT(fatty, TRAIT_NO_HELPLESSNESS))
 		return FALSE
 
 	if(preferences.helplessness_no_movement)
@@ -161,17 +173,17 @@
 				ADD_TRAIT(fatty, TRAIT_NO_MISC, HELPLESSNESS_TRAIT)
 
 				var/obj/item/clothing/suit/worn_suit = fatty.wear_suit
-				if(istype(worn_suit))
+				if(istype(worn_suit) && !istype(worn_suit, /obj/item/clothing/suit/mod))
 					to_chat(fatty, "<span class='warning'>[worn_suit] can no longer contain your weight!</span>")
 					fatty.dropItemToGround(worn_suit)
 
 				var/obj/item/clothing/gloves/worn_gloves = fatty.gloves
-				if(istype(worn_gloves))
+				if(istype(worn_gloves)&& !istype(worn_gloves, /obj/item/clothing/gloves/mod))
 					to_chat(fatty, "<span class='warning'>[worn_gloves] can no longer contain your weight!</span>")
 					fatty.dropItemToGround(worn_gloves)
 
 				var/obj/item/clothing/shoes/worn_shoes = fatty.shoes
-				if(istype(worn_shoes))
+				if(istype(worn_shoes) && !istype(worn_shoes, /obj/item/clothing/shoes/mod))
 					to_chat(fatty, "<span class='warning'>[worn_shoes] can no longer contain your weight!</span>")
 					fatty.dropItemToGround(worn_shoes)
 
@@ -189,7 +201,7 @@
 			if(fatty.fatness >= preferences.helplessness_clothing_back)
 				ADD_TRAIT(fatty, TRAIT_NO_BACKPACK, HELPLESSNESS_TRAIT)
 				var/obj/item/back_item = fatty.back
-				if(istype(back_item))
+				if(istype(back_item) && !istype(back_item, /obj/item/mod))
 					to_chat(fatty, "<span class='warning'>Your weight makes it impossible for you to carry [back_item].</span>")
 					fatty.dropItemToGround(back_item)
 
@@ -220,6 +232,42 @@
 	id = "fat"
 	variable = TRUE
 
+/mob/living/carbon
+	var/list/fatness_delay_modifiers
+
+/datum/fatness_delay_modifier
+	var/name
+	var/amount = 0
+	var/multiplier = 1
+
+/mob/living/carbon/proc/add_fat_delay_modifier(name = "", amount = 0, multiplier = 1)
+	var/find_name = FALSE
+	for(var/datum/fatness_delay_modifier/modifier in fatness_delay_modifiers)
+		if(modifier.name == name && find_name == FALSE)
+			modifier.amount = amount
+			modifier.multiplier = multiplier
+			find_name = TRUE
+	if(find_name == FALSE)
+		var/datum/fatness_delay_modifier/new_modifier = new()
+		new_modifier.name = name
+		new_modifier.amount = amount
+		new_modifier.multiplier = multiplier
+		LAZYADD(fatness_delay_modifiers, new_modifier)
+
+/mob/living/carbon/proc/remove_fat_delay_modifier(name)
+	for(var/datum/fatness_delay_modifier/modifier in fatness_delay_modifiers)
+		if(modifier.name == name)
+			LAZYREMOVE(fatness_delay_modifiers, modifier)
+
+/datum/species/proc/apply_fatness_speed_modifiers(mob/living/carbon/human/H, fatness_delay)
+	for(var/datum/fatness_delay_modifier/modifier in H.fatness_delay_modifiers)
+		fatness_delay = fatness_delay + modifier.amount
+	for(var/datum/fatness_delay_modifier/modifier in H.fatness_delay_modifiers)
+		fatness_delay *= modifier.multiplier
+	fatness_delay = max(fatness_delay, 0)
+	fatness_delay = min(fatness_delay, FATNESS_MAX_MOVE_PENALTY)
+	return fatness_delay
+
 /datum/species/proc/handle_fatness(mob/living/carbon/human/H)
 	handle_helplessness(H)
 	H.handle_modular_items()
@@ -241,6 +289,7 @@
 				fatness_delay = min(fatness_delay, 60)
 
 	if(fatness_delay)
+		fatness_delay = apply_fatness_speed_modifiers(H, fatness_delay)
 		H.add_or_update_variable_movespeed_modifier(/datum/movespeed_modifier/fatness, TRUE, fatness_delay)
 	else
 		H.remove_movespeed_modifier(/datum/movespeed_modifier/fatness)

GainStation13/code/modules/mod/modules/modules_fat.dm

@@ -0,0 +1,215 @@
+/obj/item/mod/module/hydraulic_movement
+	icon = 'GainStation13/icons/obj/clothing/modsuit/mod_modules.dmi'
+	icon_state = "hydraulic_mod"
+	name = "MOD hydraulic movement assistance module"
+	desc = "A module created by GATO, installed across the suit, featuring a system of hydraulic pistons \
+		that support and lighten vast amounts of excess weight to provide easier movement."
+	complexity = 1
+	incompatible_modules = list(/obj/item/mod/module/hydraulic_movement)
+	idle_power_cost = 5
+	var/amount = -2
+	var/modifier_name = "hydraulic_mod"
+
+/obj/item/mod/module/hydraulic_movement/on_suit_activation()
+	var/mob/living/carbon/human/wearer = mod.wearer
+	wearer.add_fat_delay_modifier(modifier_name, amount)
+
+	if(!HAS_TRAIT_FROM(wearer, TRAIT_NO_HELPLESSNESS, src))
+		ADD_TRAIT(wearer, TRAIT_NO_HELPLESSNESS, src)
+
+	if(HAS_TRAIT_FROM(wearer, TRAIT_NO_MOVE, HELPLESSNESS_TRAIT))
+		REMOVE_TRAIT(wearer, TRAIT_NO_MOVE, HELPLESSNESS_TRAIT)
+//	if(HAS_TRAIT_FROM(wearer, TRAIT_CLUMSY, HELPLESSNESS_TRAIT))
+//		REMOVE_TRAIT(wearer, TRAIT_CLUMSY, HELPLESSNESS_TRAIT)
+//	if(HAS_TRAIT_FROM(wearer, TRAIT_NEARSIGHT, HELPLESSNESS_TRAIT))
+//		wearer.cure_nearsighted(HELPLESSNESS_TRAIT)
+//	if(HAS_TRAIT_FROM(wearer, TRAIT_DISFIGURED, HELPLESSNESS_TRAIT))
+//		REMOVE_TRAIT(wearer, TRAIT_DISFIGURED, HELPLESSNESS_TRAIT)
+	if(HAS_TRAIT_FROM(wearer, TRAIT_MUTE, HELPLESSNESS_TRAIT))
+		REMOVE_TRAIT(wearer, TRAIT_MUTE, HELPLESSNESS_TRAIT)
+	if(HAS_TRAIT_FROM(wearer, TRAIT_PARALYSIS_L_ARM, HELPLESSNESS_TRAIT))
+		REMOVE_TRAIT(wearer, TRAIT_PARALYSIS_L_ARM, HELPLESSNESS_TRAIT)
+		REMOVE_TRAIT(wearer, TRAIT_PARALYSIS_R_ARM, HELPLESSNESS_TRAIT)
+		wearer.update_disabled_bodyparts()
+//	if(HAS_TRAIT_FROM(wearer, TRAIT_NO_JUMPSUIT, HELPLESSNESS_TRAIT))
+//		REMOVE_TRAIT(wearer, TRAIT_NO_JUMPSUIT, HELPLESSNESS_TRAIT)
+	if(HAS_TRAIT_FROM(wearer, TRAIT_NO_MISC, HELPLESSNESS_TRAIT))
+		REMOVE_TRAIT(wearer, TRAIT_NO_MISC, HELPLESSNESS_TRAIT)
+	if(HAS_TRAIT_FROM(wearer, TRAIT_NO_BACKPACK, HELPLESSNESS_TRAIT))
+		REMOVE_TRAIT(wearer, TRAIT_NO_BACKPACK, HELPLESSNESS_TRAIT)
+//	if(HAS_TRAIT_FROM(wearer, TRAIT_NO_BUCKLE, HELPLESSNESS_TRAIT))
+//		REMOVE_TRAIT(wearer, TRAIT_NO_BUCKLE, HELPLESSNESS_TRAIT)
+
+/obj/item/mod/module/hydraulic_movement/on_suit_deactivation(deleting = FALSE)
+	if(deleting)
+		return
+	if(HAS_TRAIT_FROM(mod.wearer, TRAIT_NO_HELPLESSNESS, src))
+		REMOVE_TRAIT(mod.wearer, TRAIT_NO_HELPLESSNESS, src)
+	mod.wearer.remove_fat_delay_modifier(modifier_name)
+
+/datum/design/module/hydraulic_movement
+	name = "Hydraulic Assistance Module"
+	id = "mod_hydraulic"
+	materials = list(/datum/material/iron = 1000, /datum/material/glass = 200)
+	build_path = /datum/design/module/hydraulic_movement
+	desc = "A GATO-designed module that supports plumper bodies and allows easier movement."
+
+/obj/item/mod/module/calovoltaic
+	icon = 'GainStation13/icons/obj/clothing/modsuit/mod_modules.dmi'
+	icon_state = "calovoltaic_mod"
+	name = "MOD calovoltaic generator module"
+	desc = "A module created by GATO, capable of burning adipose tissue \
+		to generate power for the suit it is installed onto."
+	module_type = MODULE_TOGGLE
+	complexity = 1
+	incompatible_modules = list(/obj/item/mod/module/calovoltaic)
+	var/rate = 5
+
+/obj/item/mod/module/calovoltaic/on_select()
+	. = ..()
+	if(active)
+		balloon_alert(mod.wearer, "activeted!")
+	else
+		balloon_alert(mod.wearer, "deactivated!")
+
+/obj/item/mod/module/calovoltaic/on_active_process(delta_time)
+	if(istype(mod.wearer, /mob/living/carbon))
+		var/mob/living/carbon/C = mod.wearer
+		var/adjusted_rate = rate * C.weight_loss_rate
+		if(C.fatness_real > 0 && (C.fatness_real - adjusted_rate) >= adjusted_rate)
+			C.adjust_fatness(-rate, FATTENING_TYPE_WEIGHT_LOSS)
+			mod.cell.give(rate)
+
+/datum/design/module/calovoltaic
+	name = "Calovoltaic Generator Module"
+	id = "mod_calovoltaic"
+	materials = list(/datum/material/iron = 500, /datum/material/glass = 500, /datum/material/plasma = 500)
+	build_path = /obj/item/mod/module/calovoltaic
+	desc = "A GATO-designed module for burning excess fat to make power for your suit."
+
+/obj/item/mod/construction/armor/exoskeleton
+	theme = /datum/mod_theme/exoskeleton
+
+/obj/item/mod/control/Initialize(mapload, new_theme, new_skin)
+	. = ..()
+	gs13_icon_update()
+
+/obj/item/mod/control/proc/gs13_icon_update()
+	if(theme.use_gs_icon == TRUE)
+		icon = 'GainStation13/icons/obj/clothing/modsuit/mod_clothing.dmi'
+		mob_overlay_icon = 'GainStation13/icons/mob/clothing/modsuit/mod_clothing.dmi'
+		icon_state = "[theme]-control"
+		item_state = "[theme]-control"
+
+		helmet.icon = 'GainStation13/icons/obj/clothing/modsuit/mod_clothing.dmi'
+		helmet.mob_overlay_icon = 'GainStation13/icons/mob/clothing/modsuit/mod_clothing.dmi'
+		helmet.icon_state = "[theme]-helmet"
+		helmet.item_state = "[theme]-helmet"
+
+		chestplate.icon = 'GainStation13/icons/obj/clothing/modsuit/mod_clothing.dmi'
+		chestplate.mob_overlay_icon = 'GainStation13/icons/mob/clothing/modsuit/mod_clothing.dmi'
+		chestplate.icon_state = "[theme]-chestplate"
+		chestplate.item_state = "[theme]-chestplate"
+
+		gauntlets.icon = 'GainStation13/icons/obj/clothing/modsuit/mod_clothing.dmi'
+		gauntlets.mob_overlay_icon = 'GainStation13/icons/mob/clothing/modsuit/mod_clothing.dmi'
+		gauntlets.icon_state = "[theme]-gauntlets"
+		gauntlets.item_state = "[theme]-gauntlets"
+
+		boots.icon = 'GainStation13/icons/obj/clothing/modsuit/mod_clothing.dmi'
+		boots.mob_overlay_icon = 'GainStation13/icons/mob/clothing/modsuit/mod_clothing.dmi'
+		boots.icon_state = "[theme]-boots"
+		boots.item_state = "[theme]-boots"
+
+/datum/mod_theme
+	var/use_gs_icon = FALSE
+
+/datum/mod_theme/exoskeleton
+	use_gs_icon = TRUE
+	name = "exoskeleton"
+	desc = "The design for a GATO-branded mobility exoskeleton"
+	extended_desc = "To combat the obesity epidemic that spreads on its stations, \
+		GATO scientists have worked hard to create this simple yet efficient way to support \
+		people whose weight proves restrictive and help them on their journey to lose it."
+	default_skin = "exoskeleton"
+	complexity_max = 5
+	armor = list(MELEE = 5, BULLET = 5, LASER = 5, ENERGY = 5, BOMB = 5, BIO = 5, FIRE = 5, ACID = 5, WOUND = 5, RAD = 5)
+	resistance_flags = FIRE_PROOF
+	max_heat_protection_temperature = 1
+	min_cold_protection_temperature = -1
+	permeability_coefficient = 1
+	siemens_coefficient = 1
+	slowdown_inactive = 0.5
+	slowdown_active = 0
+	inbuilt_modules = list(/obj/item/mod/module/hydraulic_movement, /obj/item/mod/module/calovoltaic, /obj/item/mod/module/storage)
+	allowed = list(/obj/item/flashlight, /obj/item/tank/internals)
+	skins = list(
+		"exoskeleton" = list(
+			HELMET_LAYER = NECK_LAYER,
+			HELMET_FLAGS = list(
+				UNSEALED_CLOTHING = NONE,
+				SEALED_CLOTHING = NONE,
+				UNSEALED_INVISIBILITY = NONE,
+				SEALED_INVISIBILITY = NONE,
+				SEALED_COVER = NONE,
+			),
+			CHESTPLATE_FLAGS = list(
+				UNSEALED_CLOTHING = NONE,
+				SEALED_CLOTHING = NONE,
+				SEALED_INVISIBILITY = NONE,
+			),
+			GAUNTLETS_FLAGS = list(
+				UNSEALED_CLOTHING = NONE,
+				SEALED_CLOTHING = NONE,
+			),
+			BOOTS_FLAGS = list(
+				UNSEALED_CLOTHING = NONE,
+				SEALED_CLOTHING = NONE,
+			),
+		),
+		"invisible" = list(
+			HELMET_LAYER = NECK_LAYER,
+			HELMET_FLAGS = list(
+				UNSEALED_CLOTHING = NONE,
+				SEALED_CLOTHING = NONE,
+				UNSEALED_INVISIBILITY = NONE,
+				SEALED_INVISIBILITY = NONE,
+				SEALED_COVER = NONE,
+			),
+			CHESTPLATE_FLAGS = list(
+				UNSEALED_CLOTHING = NONE,
+				SEALED_CLOTHING = NONE,
+				SEALED_INVISIBILITY = NONE,
+			),
+			GAUNTLETS_FLAGS = list(
+				UNSEALED_CLOTHING = NONE,
+				SEALED_CLOTHING = NONE,
+			),
+			BOOTS_FLAGS = list(
+				UNSEALED_CLOTHING = NONE,
+				SEALED_CLOTHING = NONE,
+			),
+		)
+	)
+
+/obj/item/mod/control/pre_equipped/exoskeleton
+	desc = "A pre-built GATO mobility exoskeleton, designed to support high weights, favor movement and weight loss."
+	theme = /datum/mod_theme/exoskeleton
+	cell = /obj/item/stock_parts/cell/upgraded/plus
+
+/datum/design/module/exoskeleton
+	name = "MOD exoskeleton"
+	id = "mod_exoskeleton"
+	materials = list(/datum/material/iron = 5000, /datum/material/glass = 5000, /datum/material/plasma = 5000)
+	build_path = /obj/item/mod/control/pre_equipped/exoskeleton
+	desc = "A GATO-designed assistance exoskeleton based on MODsuit tech."
+	build_type = MECHFAB
+	construction_time = 10 SECONDS
+	category = list("MODsuit Chassis", "MODsuit Designs")
+	departmental_flags = DEPARTMENTAL_FLAG_SCIENCE
+
+/datum/gear/hands/exoskeleton
+	name = "MOD exoskeleton"
+	category = LOADOUT_CATEGORY_HANDS
+	path = /obj/item/mod/control/pre_equipped/exoskeleton
+	cost = 4

code/__DEFINES/traits.dm

@@ -260,6 +260,7 @@
 #define TRAIT_LIVESTOCK "livestock"
 #define TRAIT_NO_FAT_SLOWDOWN "no_fat_slowdown"
 #define HELPLESSNESS_TRAIT "helplessness"
+#define TRAIT_NO_HELPLESSNESS "no_helplessness"
 
 #define TRAIT_RADRESONANCE "radresonance" //FIX THIS LATER
 #define COMSIG_MICRO_PICKUP_FEET "micro_force_grabbed"			//From /datum/element/mob_holder/micro

code/modules/arousal/organs/breasts.dm

@@ -9,6 +9,7 @@
 	zone = BODY_ZONE_CHEST
 	slot = ORGAN_SLOT_BREASTS
 	size = BREASTS_SIZE_DEF // "c". Refer to the breast_values static list below for the cups associated number values
+	var/max_size = 0 //GS13 Edit
 	fluid_id = /datum/reagent/consumable/milk
 	fluid_rate = MILK_RATE
 	producing = TRUE
@@ -115,6 +116,7 @@
 	else
 		color = "#[D.features["breasts_color"]]"
 	size = D.features["breasts_size"]
+	max_size = D.features["max_breasts_size"]
 	starting_size = D.features["breasts_size"]
 	shape = D.features["breasts_shape"]
 	if(!D.features["breasts_producing"])

code/modules/arousal/organs/butt.dm

@@ -7,6 +7,7 @@
 	slot 					= ORGAN_SLOT_BUTT
 	w_class 				= 3
 	size 					= 0
+	var/max_size			= 0 //GS13 Edit
 	var/size_name			= "nonexistent"
 	shape					= "Pair" //turn this into a default constant if for some inexplicable reason we get more than one butt type but I doubt it.
 	genital_flags = UPDATE_OWNER_APPEARANCE|GENITAL_UNDIES_HIDDEN
@@ -84,6 +85,7 @@
 	else
 		color = "#[D.features["butt_color"]]"
 	size = D.features["butt_size"]
+	max_size = D.features["max_butt_size"]
 	starting_size = D.features["butt_size"] // GS13 EDIT
 	prev_size = size
 	toggle_visibility(D.features["butt_visibility"], FALSE)

code/modules/client/preferences.dm

@@ -810,6 +810,7 @@ GLOBAL_LIST_EMPTY(preferences_datums)
 								dat += "<b>Color:</b></a><BR>"
 								dat += "<span style='border: 1px solid #161616; background-color: #[features["breasts_color"]];'><font color='[color_hex2num(features["breasts_color"]) < 200 ? "FFFFFF" : "000000"]'>#[features["breasts_color"]]</font></span> <a href='?_src_=prefs;preference=breasts_color;task=input'>Change</a><br>"
 							dat += "<b>Cup Size:</b><a style='display:block;width:50px' href='?_src_=prefs;preference=breasts_size;task=input'>[features["breasts_size"]]</a>"
+							dat += "<b>Max Fat Breast Size:</b><a style='display:block;width:50px' href='?_src_=prefs;preference=max_breasts_size;task=input'>[features["max_breasts_size"]]</a>" //GS13 Edit
 							dat += "<b>Breasts Shape:</b><a style='display:block;width:50px' href='?_src_=prefs;preference=breasts_shape;task=input'>[features["breasts_shape"]]</a>"
 							dat += "<b>Breasts Visibility:</b><a style='display:block;width:100px' href='?_src_=prefs;preference=breasts_visibility;task=input'>[features["breasts_visibility"]]</a>"
 							dat += "<b>Lactates:</b><a style='display:block;width:50px' href='?_src_=prefs;preference=breasts_producing'>[features["breasts_producing"] == TRUE ? "Yes" : "No"]</a>"
@@ -846,6 +847,7 @@ GLOBAL_LIST_EMPTY(preferences_datums)
 								dat += "<b>Color:</b></a><BR>"
 								dat += "<span style='border: 1px solid #161616; background-color: #[features["butt_color"]];'><font color='[color_hex2num(features["butt_color"]) < 200 ? "FFFFFF" : "000000"]'>#[features["butt_color"]]</font></span> <a href='?_src_=prefs;preference=butt_color;task=input'>Change</a><br>"
 							dat += "<b>Butt Size:</b><a style='display:block;width:50px' href='?_src_=prefs;preference=butt_size;task=input'>[features["butt_size"]]</a>"
+							dat += "<b>Max Fat Butt Size:</b><a style='display:block;width:50px' href='?_src_=prefs;preference=max_butt_size;task=input'>[features["max_butt_size"]]</a>"  //GS13 Edit
 							dat += "<b>Butt Visibility:</b><a style='display:block;width:100px' href='?_src_=prefs;preference=butt_visibility;task=input'>[features["butt_visibility"]]</a>"
 						dat += "</td>"
 					dat += "</td>"
@@ -860,6 +862,7 @@ GLOBAL_LIST_EMPTY(preferences_datums)
 						else
 							dat += "<span style='border: 1px solid #161616; background-color: #[features["belly_color"]];'><font color='[color_hex2num(features["belly_color"]) < 200 ? "FFFFFF" : "000000"]'>#[features["belly_color"]]</font></span> <a href='?_src_=prefs;preference=belly_color;task=input'>Change</a><br>"
 						dat += "<b>Belly Size:</b> <a style='display:block;width:120px' href='?_src_=prefs;preference=belly_size;task=input'>[features["belly_size"]]</a>"
+						dat += "<b>Max Fat Belly Size:</b> <a style='display:block;width:120px' href='?_src_=prefs;preference=max_belly_size;task=input'>[features["max_belly_size"]]</a>"
 						dat += "<b>Belly Shape:</b> <a style='display:block;width:120px' href='?_src_=prefs;preference=belly_shape;task=input'>[features["belly_shape"]]</a>"
 						dat += "<b>Belly Visibility:</b><a style='display:block;width:100px' href='?_src_=prefs;preference=belly_visibility;task=input'>[features["belly_visibility"]]</a>"
 						// GS13: tweak inflation description
@@ -2698,6 +2701,11 @@ GLOBAL_LIST_EMPTY(preferences_datums)
 					var/new_size = input(user, "Breast Size", "Character Preference") as null|anything in CONFIG_GET(keyed_list/breasts_cups_prefs)
 					if(new_size)
 						features["breasts_size"] = new_size
+				 //GS13 Edit
+				if("max_breasts_size")
+					var/new_max = input(user, "Max fat breasts size:\n([0]-[30])", "Character Preference") as num|null
+					if(new_max)
+						features["max_breasts_size"] = clamp(round(new_max), 0, 30)
 
 				if("breasts_shape")
 					var/new_shape
@@ -2783,6 +2791,11 @@ GLOBAL_LIST_EMPTY(preferences_datums)
 					var/new_length = input(user, "Butt size:\n([min_B]-[max_B])", "Character Preference") as num|null
 					if(new_length)
 						features["butt_size"] = clamp(round(new_length), min_B, max_B)
+				//GS13 Edit
+				if("max_butt_size")
+					var/new_max = input(user, "Max fat butt size:\n([0]-[10])", "Character Preference") as num|null
+					if(new_max)
+						features["max_butt_size"] = clamp(round(new_max), 0, 10)
 
 				if("butt_visibility")
 					var/n_vis = input(user, "Butt Visibility", "Character Preference") as null|anything in CONFIG_GET(str_list/safe_visibility_toggles)
@@ -2806,6 +2819,11 @@ GLOBAL_LIST_EMPTY(preferences_datums)
 					if(new_bellysize)
 						features["belly_size"] = clamp(round(new_bellysize), 1, 10)
 
+				if("max_belly_size")
+					var/new_bellymax = input(user, "Max belly fat size :\n(0-10, 0 = none)", "Character Preference") as num|null
+					if(new_bellymax)
+						features["max_belly_size"] = clamp(round(new_bellymax), 0, 10)
+
 				if("belly_shape") //GS13 - belly shapes
 					var/new_shape
 					new_shape = input(user, "Belly Type", "Character Preference") as null|anything in GLOB.belly_shapes_list

code/modules/client/preferences_savefile.dm

@@ -874,6 +874,7 @@ SAVEFILE UPDATING/VERSIONING - 'Simplified', or rather, more coder-friendly ~Car
 	//breasts features
 	S["feature_has_breasts"] >> features["has_breasts"]
 	S["feature_breasts_size"] >> features["breasts_size"]
+	S["feature_max_breasts_size"]	>> features["max_breasts_size"] //GS13 Edit - Max size
 	S["feature_breasts_shape"] >> features["breasts_shape"]
 	S["feature_breasts_color"] >> features["breasts_color"]
 	S["feature_breasts_producing"] >> features["breasts_producing"]
@@ -889,10 +890,12 @@ SAVEFILE UPDATING/VERSIONING - 'Simplified', or rather, more coder-friendly ~Car
 	S["feature_has_butt"] >> features["has_butt"]
 	S["feature_butt_color"] >> features["butt_color"]
 	S["feature_butt_size"] >> features["butt_size"]
+	S["feature_max_butt_size"]	>> features["max_butt_size"] //GS13 Edit - Max size
 	S["feature_butt_visibility"] >> features["butt_visibility"]
 	//belly features
 	S["feature_has_belly"]				>> features["has_belly"]
 	S["feature_belly_size"]				>> features["belly_size"]
+	S["feature_max_belly_size"]				>> features["max_belly_size"]
 	S["feature_belly_shape"]			>> features["belly_shape"]
 	S["feature_belly_color"]			>> features["belly_color"]
 	S["feature_hide_belly"]				>> features["hide_belly"]
@@ -1291,6 +1294,7 @@ SAVEFILE UPDATING/VERSIONING - 'Simplified', or rather, more coder-friendly ~Car
 
 	WRITE_FILE(S["feature_has_breasts"], features["has_breasts"])
 	WRITE_FILE(S["feature_breasts_size"], features["breasts_size"])
+	WRITE_FILE(S["feature_max_breasts_size"], features["max_breasts_size"]) //GS13 Edit - Max size
 	WRITE_FILE(S["feature_breasts_shape"], features["breasts_shape"])
 	WRITE_FILE(S["feature_breasts_color"], features["breasts_color"])
 	WRITE_FILE(S["feature_breasts_producing"], features["breasts_producing"])
@@ -1306,10 +1310,12 @@ SAVEFILE UPDATING/VERSIONING - 'Simplified', or rather, more coder-friendly ~Car
 	WRITE_FILE(S["feature_has_butt"], features["has_butt"])
 	WRITE_FILE(S["feature_butt_color"], features["butt_color"])
 	WRITE_FILE(S["feature_butt_size"], features["butt_size"])
+	WRITE_FILE(S["feature_max_butt_size"], features["max_butt_size"]) //GS13 Edit - Max size
 	WRITE_FILE(S["feature_butt_visibility"], features["butt_visibility"])
 	//belly features
 	WRITE_FILE(S["feature_has_belly"], features["has_belly"])
 	WRITE_FILE(S["feature_belly_size"], features["belly_size"])
+	WRITE_FILE(S["feature_max_belly_size"], features["max_belly_size"])
 	WRITE_FILE(S["feature_belly_shape"], features["belly_shape"])
 	WRITE_FILE(S["feature_belly_color"], features["belly_color"])
 	WRITE_FILE(S["feature_hide_belly"], features["hide_belly"])

code/modules/research/techweb/nodes/mod_nodes.dm

@@ -15,6 +15,10 @@
 		"mod_welding",
 		"mod_mouthhole",
 		"mod_flashlight",
+		//GS13 Edit
+		"mod_hydraulic",
+		"mod_calovoltaic",
+		"mod_exoskeleton",
 	)
 
 /datum/techweb_node/mod_advanced

tgstation.dme

@@ -4055,6 +4055,7 @@
 #include "GainStation13\code\modules\mob\living\nutribot.dm"
 #include "GainStation13\code\modules\mob\living\species.dm"
 #include "GainStation13\code\modules\mob\living\vore\eating\trasheat_lists.dm"
+#include "GainStation13\code\modules\mod\modules\modules_fat.dm"
 #include "GainStation13\code\modules\reagents\chemistry\reagents\consumable_reagents.dm"
 #include "GainStation13\code\modules\reagents\chemistry\reagents\dwarverndrinks.dm"
 #include "GainStation13\code\modules\reagents\chemistry\reagents\fatty_drinks.dm"