Initial

code/modules/client/preference_setup/general/03_body.dm

@@ -150,6 +150,7 @@ var/global/list/valid_bloodtypes = list("A+", "A-", "B+", "B-", "AB+", "AB-", "O
 	S["r_wing3"]		>> pref.r_wing3
 	S["g_wing3"]		>> pref.g_wing3
 	S["b_wing3"]		>> pref.b_wing3
+	S["digitigrade"] 	>> pref.digitigrade //CHOMPEdit
 
 /datum/category_item/player_setup_item/general/body/save_character(var/savefile/S)
 	S["species"]			<< pref.species
@@ -220,6 +221,7 @@ var/global/list/valid_bloodtypes = list("A+", "A-", "B+", "B-", "AB+", "AB-", "O
 	S["r_wing3"]		<< pref.r_wing3
 	S["g_wing3"]		<< pref.g_wing3
 	S["b_wing3"]		<< pref.b_wing3
+	S["digitigrade"] 	<< pref.digitigrade //CHOMPEdit
 
 /datum/category_item/player_setup_item/general/body/sanitize_character(var/savefile/S)
 	if(!pref.species || !(pref.species in GLOB.playable_species))
@@ -580,6 +582,11 @@ var/global/list/valid_bloodtypes = list("A+", "A-", "B+", "B-", "AB+", "AB-", "O
 		. += "<br><b>Body Color</b><br>"
 		. += "<a href='?src=\ref[src];skin_color=1'>Change Color</a> [color_square(pref.r_skin, pref.g_skin, pref.b_skin)]<br>"
 
+	//CHOMPEdit START
+	if(mob_species.digi_allowed)
+		. += "<br><b>Digitigrade?:</b> <a href='?src=\ref[src];digitigrade=1'><b>[pref.digitigrade ? "Yes" : "No"]</b></a><br>"
+	//CHOMPEdit END
+
 	. += "<h2>Genetics Settings</h2>"
 
 	var/list/ear_styles = pref.get_available_styles(global.ear_styles_list)
@@ -1290,6 +1297,21 @@ var/global/list/valid_bloodtypes = list("A+", "A-", "B+", "B-", "AB+", "AB-", "O
 			pref.g_wing3 = hex2num(copytext(new_wingc3, 4, 6))
 			pref.b_wing3 = hex2num(copytext(new_wingc3, 6, 8))
 			return TOPIC_REFRESH_UPDATE_PREVIEW
+
+	//CHOMPEdit START
+	else if(href_list["digitigrade"])
+		pref.digitigrade = !pref.digitigrade
+
+		//I don't know how else to force a sprite update that doing the stupid thing below
+		pref.r_skin = 0
+		pref.b_skin = 0
+		if(pref.g_skin != 128)
+			pref.g_skin = 128
+		else
+			pref.g_skin = 135
+
+		return TOPIC_REFRESH_UPDATE_PREVIEW
+	//CHOMPEdit END
 	return ..()
 
 /datum/category_item/player_setup_item/general/body/proc/reset_limbs()

code/modules/client/preferences_ch.dm

@@ -0,0 +1,2 @@
+/datum/preferences
+	var/digitigrade = 0

code/modules/clothing/clothing_ch.dm

@@ -0,0 +1,60 @@
+//CHOMP Overrides for if holder is digitigrade
+/obj/item/clothing
+	var/update_icon_define_orig = null
+
+/obj/item/clothing/proc/handle_digitigrade(var/mob/user)
+	if(ishuman(user))
+		var/mob/living/carbon/human/H = user
+
+		// if digitigrade-use flag is set
+		if(H.species.digitigrade)
+
+			// figure out what slot we care about
+			var/update_icon_define_digi = null
+
+			if(istype(src, /obj/item/clothing/shoes))
+				update_icon_define_digi = "icons/inventory/feet/mob_digi_ch.dmi"
+			else if(istype(src, /obj/item/clothing/suit)) //suit
+				update_icon_define_digi = "icons/inventory/suit/mob_digi_ch.dmi"
+			else if(istype(src, /obj/item/clothing/under)) //uniform
+				update_icon_define_digi = "icons/inventory/uniform/mob_digi_ch.dmi"
+			else
+				return
+
+			// only override icon if a corresponding digitigrade replacement icon_state exists
+			// otherwise, keep the old non-digi icon
+			if(icon_state && icon_states(update_icon_define_digi).Find(icon_state))
+
+				// Don't reset if already set
+				if(update_icon_define <> update_icon_define_digi)
+
+					//if update_icon_define is already set to something, place it in a var to hold it temporarily
+					if(update_icon_define)
+						update_icon_define_orig = update_icon_define
+
+					//set digi-leg sprite
+					update_icon_define = update_icon_define_digi
+
+
+		// if not-digitigrade and update_icon_define set by previous digi-user, replacing an 'original' value
+		else if(update_icon_define_orig)
+			update_icon_define = update_icon_define_orig
+			update_icon_define_orig = null
+
+
+		else if(update_icon_define)
+			// if not-digitigrade and update_icon_define set by previous digi-user, but nothing replaced
+			update_icon_define = null
+
+
+/obj/item/clothing/shoes/equipped(var/mob/user, var/slot)
+	. = ..()
+	handle_digitigrade(user)
+
+/obj/item/clothing/suit/equipped(var/mob/user, var/slot)
+	. = ..()
+	handle_digitigrade(user)
+
+/obj/item/clothing/under/equipped(var/mob/user, var/slot)
+	. = ..()
+	handle_digitigrade(user)

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

@@ -13,8 +13,19 @@
 	var/grab_power_self = 0
 	var/waking_speed = 1
 	var/mudking = FALSE
+	var/icodigi = 'icons/mob/human_races/r_digi_ch.dmi'
+	var/digitigrade = FALSE
+	var/digi_allowed = FALSE
 
 /datum/species/handle_environment_special(var/mob/living/carbon/human/H)
 	for(var/datum/trait/env_trait in env_traits)
 		env_trait.handle_environment_special(H)
 	return
+
+// On creation, grab the preference of the creator's client, if possible.
+/datum/species/New()
+	. = ..()
+	if(istype(usr, /mob) && digi_allowed)
+		var/mob/M = usr
+		if(M.client)
+			digitigrade = M.client.prefs.digitigrade

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

@@ -39,3 +39,31 @@
 /datum/species/vox
 	spawn_flags = SPECIES_CAN_JOIN | SPECIES_IS_WHITELISTED | SPECIES_WHITELIST_SELECTABLE
 */
+
+//Can use digitigrade flags
+/datum/species/custom
+	digi_allowed = TRUE
+
+/datum/species/unathi
+	digi_allowed = TRUE
+
+/datum/species/tajaran
+	digi_allowed = TRUE
+
+/datum/species/hi_zoxxen
+	digi_allowed = TRUE
+
+/datum/species/sergal
+	digi_allowed = TRUE
+
+/datum/species/akula
+	digi_allowed = TRUE
+
+/datum/species/nevrean
+	digi_allowed = TRUE
+
+/datum/species/vulpkanin
+	digi_allowed = TRUE
+
+/datum/species/xenohybrid
+	digi_allowed = TRUE

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

@@ -0,0 +1,39 @@
+// Expand shoe layer to allow changing the icon for digi legs
+// For some reason, suit and uniform already has this funcitonality, but shoes do not.
+
+#define SHOES_LAYER_ALT			7		//Shoe-slot item (when set to be under uniform via verb)
+#define SHOES_LAYER				10		//Shoe-slot item
+
+/mob/living/carbon/human/update_inv_shoes()
+	//. = ..()
+	remove_layer(SHOES_LAYER)
+	remove_layer(SHOES_LAYER_ALT) //Dumb alternate layer for shoes being under the uniform.
+
+	if(!shoes || (wear_suit && wear_suit.flags_inv & HIDESHOES) || (w_uniform && w_uniform.flags_inv & HIDESHOES))
+		return //Either nothing to draw, or it'd be hidden.
+
+	for(var/f in list(BP_L_FOOT, BP_R_FOOT))
+		var/obj/item/organ/external/foot/foot = get_organ(f)
+		if(istype(foot) && foot.is_hidden_by_tail()) //If either foot is hidden by the tail, don't render footwear.
+			return
+
+	var/obj/item/clothing/shoes/shoe = shoes
+	var/shoe_sprite
+
+	if(istype(shoe) && !isnull(shoe.update_icon_define))
+		shoe_sprite = shoe.update_icon_define
+	else
+		shoe_sprite = INV_FEET_DEF_ICON
+
+	//Allow for shoe layer toggle nonsense
+	var/shoe_layer = SHOES_LAYER
+	if(istype(shoes, /obj/item/clothing/shoes))
+		var/obj/item/clothing/shoes/ushoes = shoes
+		if(ushoes.shoes_under_pants == 1)
+			shoe_layer = SHOES_LAYER_ALT
+
+	//NB: the use of a var for the layer on this one
+	overlays_standing[shoe_layer] = shoes.make_worn_icon(body_type = species.get_bodytype(src), slot_name = slot_shoes_str, default_icon = shoe_sprite, default_layer = shoe_layer)
+
+	apply_layer(SHOES_LAYER)
+	apply_layer(SHOES_LAYER_ALT)

code/modules/organs/organ_icon_ch.dm

@@ -0,0 +1,11 @@
+// override the organ icon getting proc
+// if species.digitigrade is set, inject the sprites for digitigrade for appropriate organs
+
+/obj/item/organ/external/get_icon(var/skeletal)
+	if( species.digitigrade && ( istype(src,/obj/item/organ/external/leg) || istype(src,/obj/item/organ/external/foot) ) )
+		var/IB = species.icobase
+		species.icobase = species.icodigi
+		. = ..()
+		species.icobase = IB
+	else
+		. = ..()

vorestation.dme

@@ -1935,6 +1935,7 @@
 #include "code\modules\client\client procs_vr.dm"
 #include "code\modules\client\movement.dm"
 #include "code\modules\client\preferences.dm"
+#include "code\modules\client\preferences_ch.dm"
 #include "code\modules\client\preferences_factions.dm"
 #include "code\modules\client\preferences_savefile.dm"
 #include "code\modules\client\preferences_spawnpoints.dm"
@@ -2024,6 +2025,7 @@
 #include "code\modules\clothing\chameleon.dm"
 #include "code\modules\clothing\clothing.dm"
 #include "code\modules\clothing\clothing_accessories.dm"
+#include "code\modules\clothing\clothing_ch.dm"
 #include "code\modules\clothing\clothing_icons.dm"
 #include "code\modules\clothing\clothing_vr.dm"
 #include "code\modules\clothing\ears\earrings.dm"
@@ -2932,6 +2934,7 @@
 #include "code\modules\mob\living\carbon\human\stripping.dm"
 #include "code\modules\mob\living\carbon\human\unarmed_attack.dm"
 #include "code\modules\mob\living\carbon\human\update_icons.dm"
+#include "code\modules\mob\living\carbon\human\update_icons_ch.dm"
 #include "code\modules\mob\living\carbon\human\ai_controlled\ai_controlled.dm"
 #include "code\modules\mob\living\carbon\human\descriptors\_descriptors.dm"
 #include "code\modules\mob\living\carbon\human\descriptors\descriptors_generic.dm"
@@ -3474,6 +3477,7 @@
 #include "code\modules\organs\organ_external.dm"
 #include "code\modules\organs\organ_external_vr.dm"
 #include "code\modules\organs\organ_icon.dm"
+#include "code\modules\organs\organ_icon_ch.dm"
 #include "code\modules\organs\organ_stump.dm"
 #include "code\modules\organs\pain.dm"
 #include "code\modules\organs\robolimbs.dm"