Refactors move procs to support multitle objects (#59658)

Enter(), Entered(), Exit() and Exited() all passed the old loc forward, but everything except a single a case cared about the direction of the movement more than about the specific source.
Since moving multi-tile objects will have multiple sources of movement but a single direction, this change makes it easier to track their movement.

Cleaned up a lot of code around and made proc inputs compatible.

I'll add opacity support for multi-tile objects in a different PR after this is merged, as this has grown large enough and I don't want to compromise the reviewability.

Tested this locally and as expected it didn't impair movement nor produced any runtimes.

code/game/objects/structures/crates_lockers/closets.dm

@@ -423,9 +423,9 @@
 // Objects that try to exit a locker by stepping were doing so successfully,
 // and due to an oversight in turf/Enter() were going through walls.  That
 // should be independently resolved, but this is also an interesting twist.
-/obj/structure/closet/Exit(atom/movable/AM)
+/obj/structure/closet/Exit(atom/movable/leaving, direction)
 	open()
-	if(AM.loc == src)
+	if(leaving.loc == src)
 		return FALSE
 	return TRUE
 

code/game/objects/structures/industrial_lift.dm

@@ -173,9 +173,9 @@ GLOBAL_LIST_EMPTY(lifts)
 		lift_master_datum = new(src)
 
 
-/obj/structure/industrial_lift/proc/UncrossedRemoveItemFromLift(datum/source, atom/movable/potential_rider)
+/obj/structure/industrial_lift/proc/UncrossedRemoveItemFromLift(datum/source, atom/movable/gone, direction)
 	SIGNAL_HANDLER
-	RemoveItemFromLift(potential_rider)
+	RemoveItemFromLift(gone)
 
 /obj/structure/industrial_lift/proc/RemoveItemFromLift(atom/movable/potential_rider)
 	SIGNAL_HANDLER

code/game/objects/structures/railings.dm

@@ -84,10 +84,10 @@
 
 	AddElement(/datum/element/connect_loc, src, loc_connections)
 
-/obj/structure/railing/proc/on_exit(datum/source, atom/movable/leaving, atom/new_location)
+/obj/structure/railing/proc/on_exit(datum/source, atom/movable/leaving, direction)
 	SIGNAL_HANDLER
 
-	if(!(get_dir(leaving.loc, new_location) & dir))
+	if(!(direction & dir))
 		return
 
 	if (!density)

code/game/objects/structures/stairs.dm

@@ -60,10 +60,10 @@
 		if(S)
 			S.update_appearance()
 
-/obj/structure/stairs/proc/on_exit(datum/source, atom/movable/leaving, atom/new_location)
+/obj/structure/stairs/proc/on_exit(datum/source, atom/movable/leaving, direction)
 	SIGNAL_HANDLER
 
-	if(!isobserver(leaving) && isTerminator() && (get_dir(src, new_location) == dir))
+	if(!isobserver(leaving) && isTerminator() && direction == dir)
 		INVOKE_ASYNC(src, .proc/stair_ascend, leaving)
 		leaving.Bump(src)
 		return COMPONENT_ATOM_BLOCK_EXIT

code/game/objects/structures/windoor_assembly.dm

@@ -74,13 +74,13 @@
 	else
 		return 1
 
-/obj/structure/windoor_assembly/proc/on_exit(datum/source, atom/movable/leaving, atom/new_location)
+/obj/structure/windoor_assembly/proc/on_exit(datum/source, atom/movable/leaving, direction)
 	SIGNAL_HANDLER
 
 	if (leaving.pass_flags & pass_flags_self)
 		return
 
-	if (get_dir(loc, new_location) == dir && density)
+	if (direction == dir && density)
 		leaving.Bump(src)
 		return COMPONENT_ATOM_BLOCK_EXIT
 

code/game/objects/structures/window.dm

@@ -124,7 +124,7 @@
 
 	return TRUE
 
-/obj/structure/window/proc/on_exit(datum/source, atom/movable/leaving, atom/new_location)
+/obj/structure/window/proc/on_exit(datum/source, atom/movable/leaving, direction)
 	SIGNAL_HANDLER
 
 	if (istype(leaving) && (leaving.pass_flags & pass_flags_self))
@@ -133,7 +133,7 @@
 	if (fulltile)
 		return
 
-	if(get_dir(leaving.loc, new_location) == dir && density)
+	if(direction == dir && density)
 		leaving.Bump(src)
 		return COMPONENT_ATOM_BLOCK_EXIT