Slot_tie flags.

code/game/objects/items.dm

@@ -393,6 +393,19 @@
 					if(B.contents.len < B.storage_slots && w_class <= B.max_w_class)
 						return 1
 				return 0
+			if(slot_tie)
+				if(!H.w_uniform && (slot_w_uniform in mob_equip))
+					if(!disable_warning)
+						H << "\red You need a jumpsuit before you can attach this [name]."
+					return 0
+				var/obj/item/clothing/under/uniform = H.w_uniform
+				if(uniform.hastie)
+					if (!disable_warning)
+						H << "\red You already have [uniform.hastie] attached to your [uniform]."
+					return 0
+				if( !(slot_flags & SLOT_TIE) )
+					return 0
+				return 1
 		return 0 //Unsupported slot
 		//END HUMAN
 

code/modules/clothing/under/ties.dm

@@ -6,7 +6,7 @@
 	item_state = ""	//no inhands
 	item_color = "bluetie"
 	flags = FPRINT | TABLEPASS
-	slot_flags = 0
+	slot_flags = SLOT_TIE
 	w_class = 2.0
 	var/obj/item/clothing/under/has_suit = null		//the suit the tie may be attached to
 	var/image/inv_overlay = null	//overlay used when attached to clothing.
@@ -390,7 +390,7 @@
 	desc = "This glowing blue badge marks the holder as THE LAW."
 	icon_state = "holobadge"
 	item_color = "holobadge"
-	slot_flags = SLOT_BELT
+	slot_flags = SLOT_BELT | SLOT_TIE
 
 	var/emagged = 0 //Emagging removes Sec check.
 	var/stored_name = null
@@ -398,7 +398,7 @@
 /obj/item/clothing/tie/holobadge/cord
 	icon_state = "holobadge-cord"
 	item_color = "holobadge-cord"
-	slot_flags = SLOT_MASK
+	slot_flags = SLOT_MASK | SLOT_TIE
 
 /obj/item/clothing/tie/holobadge/attack_self(mob/user as mob)
 	if(!stored_name)

code/modules/customitems/item_defines.dm

@@ -1140,7 +1140,6 @@
 	item_color = "radi_pendant"
 	flags = FPRINT|TABLEPASS
 	w_class = 2.0
-	slot_flags = 0
 
 //////////// Masks ////////////
 
@@ -1186,7 +1185,7 @@
 	slot_flags = 0
 	flags = FPRINT|TABLEPASS
 	w_class = 2
-	slot_flags = SLOT_MASK
+	slot_flags = SLOT_MASK | SLOT_TIE
 
 ////// Silver locket - Konaa Hirano - Konaa_Hirano
 
@@ -1200,7 +1199,7 @@
 	slot_flags = 0
 	flags = FPRINT|TABLEPASS
 	w_class = 2
-	slot_flags = SLOT_MASK
+	slot_flags = SLOT_MASK | SLOT_TIE
 	var/obj/item/held //Item inside locket.
 
 /obj/item/clothing/tie/fluff/konaa_hirano/attack_self(mob/user as mob)
@@ -1230,7 +1229,7 @@
 	icon_state = "nasir_khayyam_1"
 	flags = FPRINT|TABLEPASS
 	w_class = 2
-	slot_flags = SLOT_MASK
+	slot_flags = SLOT_MASK | SLOT_TIE
 
 ////// Emerald necklace - Ty Foster - Nega
 
@@ -1458,7 +1457,7 @@
 			follow_dist = 2
 		var/near_dist = max(follow_dist - 3, 1)
 		var/current_dist = get_dist(src, bff)
-		
+
 		if (movement_target != bff)
 			if (current_dist > follow_dist && !istype(movement_target, /mob/living/simple_animal/mouse) && (bff in oview(src)))
 				//stop existing movement
@@ -1469,7 +1468,7 @@
 				stop_automated_movement = 1
 				movement_target = bff
 				walk_to(src, movement_target, near_dist, 4)
-		
+
 		//already following and close enough, stop
 		else if (current_dist <= near_dist)
 			walk_to(src,0)
@@ -1481,15 +1480,15 @@
 
 /mob/living/simple_animal/cat/fluff/Life()
 	..()
-	if (stat || !bff) 
+	if (stat || !bff)
 		return
 	if (get_dist(src, bff) <= 1)
 		if (bff.stat >= DEAD || bff.health <= config.health_threshold_softcrit)
-			if (prob((bff.stat < DEAD)? 50 : 15)) 
+			if (prob((bff.stat < DEAD)? 50 : 15))
 				audible_emote(pick("meows in distress.", "meows anxiously."))
 		else
-			if (prob(5)) 
-				visible_emote(pick("nuzzles [bff].", 
+			if (prob(5))
+				visible_emote(pick("nuzzles [bff].",
 								   "brushes against [bff].",
 								   "rubs against [bff].",
 								   "purrs."))

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

@@ -73,6 +73,8 @@
 			return has_organ("chest")
 		if(slot_in_backpack)
 			return 1
+		if(slot_tie)
+			return 1
 
 /mob/living/carbon/human/u_equip(obj/item/W as obj)
 	if(!W)	return 0
@@ -202,13 +204,6 @@
 	if(!istype(W)) return
 	if(!has_organ_for_slot(slot)) return
 
-	if(W == src.l_hand)
-		src.l_hand = null
-		update_inv_l_hand() //So items actually disappear from hands.
-	else if(W == src.r_hand)
-		src.r_hand = null
-		update_inv_r_hand()
-
 	W.loc = src
 	switch(slot)
 		if(slot_back)
@@ -311,10 +306,20 @@
 			if(src.get_active_hand() == W)
 				src.u_equip(W)
 			W.loc = src.back
+		if(slot_tie)
+			var/obj/item/clothing/under/uniform = src.w_uniform
+			uniform.attackby(W,src)
 		else
 			src << "\red You are trying to eqip this item to an unsupported inventory slot. How the heck did you manage that? Stop it..."
 			return
 
+	if(W == src.l_hand)
+		src.l_hand = null
+		update_inv_l_hand() //So items actually disappear from hands.
+	else if(W == src.r_hand)
+		src.r_hand = null
+		update_inv_r_hand()
+
 	W.layer = 20
 
 	return
@@ -801,4 +806,4 @@ It can still be worn/put on as normal.
 	if(source && target)
 		if(source.machine == target)
 			target.show_inv(source)
-	del(src)
+	del(src)

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

@@ -612,4 +612,7 @@
 	if(slot_back in equip_slots)
 		equip_slots |= slot_in_backpack
 
+	if(slot_w_uniform in equip_slots)
+		equip_slots |= slot_tie
+
 	equip_slots |= slot_legcuffed

code/modules/mob/mob.dm

@@ -165,6 +165,7 @@ var/list/slot_equipment_priority = list( \
 		slot_glasses,\
 		slot_belt,\
 		slot_s_store,\
+		slot_tie,\
 		slot_l_store,\
 		slot_r_store\
 	)

code/setup.dm

@@ -185,7 +185,7 @@ var/MAX_EXPLOSION_RANGE = 14
 #define SLOT_POCKET 2048		//this is to allow items with a w_class of 3 or 4 to fit in pockets.
 #define SLOT_DENYPOCKET 4096	//this is to deny items with a w_class of 2 or 1 to fit in pockets.
 #define SLOT_TWOEARS 8192
-#define SLOT_LEGS = 16384
+#define SLOT_TIE 16384
 
 //FLAGS BITMASK
 #define STOPSPRESSUREDMAGE 1	//This flag is used on the flags variable for SUIT and HEAD items which stop pressure damage. Note that the flag 1 was previous used as ONBACK, so it is possible for some code to use (flags & 1) when checking if something can be put on your back. Replace this code with (inv_flags & SLOT_BACK) if you see it anywhere
@@ -267,6 +267,7 @@ var/MAX_EXPLOSION_RANGE = 14
 #define slot_legcuffed 19
 #define slot_r_ear 20
 #define slot_legs 21
+#define slot_tie 22
 
 //Cant seem to find a mob bitflags area other than the powers one