refactor buckling to be more generic

Buckling procs and vars have been moved down to /obj.
Behaviour is mostly the same, but you can buckle cuffed people to
 pipes and they will automatically unbuckle if the cuffs are removed.

Signed-off-by: Mloc-Argent <colmohici@gmail.com>

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

@@ -354,6 +354,8 @@
 	else if (W == handcuffed)
 		handcuffed = null
 		update_inv_handcuffed()
+		if(buckled && buckled.buckle_require_restraints)
+			buckled.unbuckle_mob()
 
 	else if (W == legcuffed)
 		legcuffed = null

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

@@ -131,6 +131,10 @@
 		else
 			msg += "<span class='warning'>[t_He] [t_is] \icon[handcuffed] handcuffed!</span>\n"
 
+	//buckled
+	if(buckled)
+		msg += "<span class='warning'>[t_He] [t_is] \icon[buckled] buckled to [buckled]!</span>\n"
+
 	//belt
 	if(belt)
 		if(belt.blood_DNA)

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

@@ -167,6 +167,8 @@
 		update_inv_back()
 	else if (W == handcuffed)
 		handcuffed = null
+		if(buckled && buckled.buckle_require_restraints)
+			buckled.unbuckle_mob()
 		success = 1
 		update_inv_handcuffed()
 	else if (W == legcuffed)

code/modules/mob/living/living.dm

@@ -555,9 +555,9 @@
 						for(var/mob/O in viewers(C))
 							O.show_message("\red <B>[usr] manages to unbuckle themself!</B>", 1)
 						C << "\blue You successfully unbuckle yourself."
-						C.buckled.manual_unbuckle(C)
+						C.buckled.user_unbuckle_mob(C)
 		else
-			L.buckled.manual_unbuckle(L)
+			L.buckled.user_unbuckle_mob(L)
 
 	//Breaking out of a locker?
 	else if( src.loc && (istype(src.loc, /obj/structure/closet)) )
@@ -657,6 +657,8 @@
 						CM.say(pick(";RAAAAAAAARGH!", ";HNNNNNNNNNGGGGGGH!", ";GWAAAAAAAARRRHHH!", "NNNNNNNNGGGGGGGGHH!", ";AAAAAAARRRGH!" ))
 						del(CM.handcuffed)
 						CM.handcuffed = null
+						if(buckled && buckled.buckle_require_restraints)
+							buckled.unbuckle_mob()
 						CM.update_inv_handcuffed()
 			else
 				var/obj/item/weapon/handcuffs/HC = CM.handcuffed

code/modules/mob/mob.dm

@@ -855,21 +855,17 @@ note dizziness decrements automatically in the mob's Life() proc.
 			canmove = 0
 			pixel_y = V.mob_offset_y - 5
 		else
-			lying = 0
+			if(buckled.buckle_lying != -1) lying = buckled.buckle_lying
 			canmove = 1
 			pixel_y = V.mob_offset_y
 	else if(buckled)
-		if (!buckled.movable)
+		if(buckled.buckle_lying != -1) lying = buckled.buckle_lying
+		if (!buckled.buckle_movable)
 			anchored = 1
 			canmove = 0
-			if(istype(buckled,/obj/structure/stool/bed/chair) )
-				lying = 0
-			else
-				lying = 1
 		else
 			anchored = 0
 			canmove = 1
-			lying = 0
 	else if( stat || weakened || paralysis || resting || sleeping || (status_flags & FAKEDEATH))
 		lying = 1
 		canmove = 0
@@ -905,7 +901,7 @@ note dizziness decrements automatically in the mob's Life() proc.
 /mob/proc/facedir(var/ndir)
 	if(!canface())	return 0
 	set_dir(ndir)
-	if(buckled && buckled.movable)
+	if(buckled && buckled.buckle_movable)
 		buckled.set_dir(ndir)
 	client.move_delay += movement_delay()
 	return 1