Adds the parcel cart to operations.

aurorastation.dme

@@ -1429,7 +1429,6 @@
 #include "code\game\objects\structures\displaycase.dm"
 #include "code\game\objects\structures\door_assembly.dm"
 #include "code\game\objects\structures\ECD.dm"
-#include "code\game\objects\structures\engicart.dm"
 #include "code\game\objects\structures\extinguisher.dm"
 #include "code\game\objects\structures\fireaxe_cabinet.dm"
 #include "code\game\objects\structures\flags_banners.dm"
@@ -1440,7 +1439,6 @@
 #include "code\game\objects\structures\hadii_statue.dm"
 #include "code\game\objects\structures\hivebot_head.dm"
 #include "code\game\objects\structures\inflatable.dm"
-#include "code\game\objects\structures\janicart.dm"
 #include "code\game\objects\structures\kitchen_spike.dm"
 #include "code\game\objects\structures\large.dm"
 #include "code\game\objects\structures\lattice.dm"
@@ -1477,6 +1475,10 @@
 #include "code\game\objects\structures\barricades\metal.dm"
 #include "code\game\objects\structures\barricades\plasteel.dm"
 #include "code\game\objects\structures\barricades\wood.dm"
+#include "code\game\objects\structures\carts\carts.dm"
+#include "code\game\objects\structures\carts\engicart.dm"
+#include "code\game\objects\structures\carts\janicart.dm"
+#include "code\game\objects\structures\carts\parcelcart.dm"
 #include "code\game\objects\structures\crates_lockers\closets.dm"
 #include "code\game\objects\structures\crates_lockers\crates.dm"
 #include "code\game\objects\structures\crates_lockers\largecrate.dm"

code/game/machinery/doors/door.dm

@@ -194,8 +194,8 @@
 			else
 				do_animate("deny")
 		return
-	if(istype(bumped_atom, /obj/structure/janitorialcart) || istype(bumped_atom, /obj/structure/engineeringcart))
-		var/obj/structure/janitorialcart/cart = bumped_atom
+	if(istype(bumped_atom, /obj/structure/cart))
+		var/obj/structure/cart/cart = bumped_atom
 		if(density)
 			if(cart.pulling && (src.allowed(cart.pulling)))
 				open()

code/game/objects/structures/carts/carts.dm

@@ -0,0 +1,141 @@
+ABSTRACT_TYPE(/obj/structure/cart)
+	name = "cart parent item"
+	desc = DESC_PARENT
+	icon_state = "cart"
+	anchored = FALSE
+	density = TRUE
+	climbable = TRUE
+	build_amt = 15
+	material = DEFAULT_WALL_MATERIAL
+	slowdown = 0
+	var/movesound = 'sound/effects/roll.ogg'
+	var/driving
+	var/mob/living/pulling
+
+/obj/structure/cart/mechanics_hints(mob/user, distance, is_adjacent)
+	. += ..()
+	. += "\
+		You can <b>CTRL-Click</b> to start dragging this cart. This object has a special dragging behaviour: when dragged, character's movement \
+		directs the cart and the character is subsequently pulled by it. \
+		"
+
+/obj/structure/cart/disassembly_hints(mob/user, distance, is_adjacent)
+	. += ..()
+	. += "An empty cart can be taken apart with a <b>wrench</b> or a <b>welder</b>. Or a <b>plasma cutter</b>, if you're that hardcore."
+
+/obj/structure/cart/proc/take_apart(var/mob/user = null, var/obj/I)
+	if(user)
+		if(iswelder(I))
+			var/obj/item/welder = I
+			welder.play_tool_sound(get_turf(src), 50)
+
+		user.visible_message("<b>[user]</b> starts taking apart the [src]...", SPAN_NOTICE("You start disassembling the [src]..."))
+		if (!do_after(user, 30, do_flags = DO_DEFAULT & ~DO_USER_SAME_HAND))
+			return
+
+	dismantle()
+
+/obj/structure/cart/ex_act(severity)
+	spill(100 / severity)
+	..()
+
+/obj/structure/cart/proc/spill(var/chance = 100)
+
+/obj/structure/cart/proc/update_slowdown()
+
+/obj/structure/cart/relaymove(mob/living/user, direction)
+	. = ..()
+
+	if(user.stat || user.stunned || user.weakened || user.paralysis || user.lying || user.restrained())
+		if(user==pulling)
+			pulling = null
+			user.pulledby = null
+			to_chat(user, SPAN_WARNING("You lost your grip!"))
+		return
+	if(user.pulling && (user == pulling))
+		pulling = null
+		user.pulledby = null
+		return
+	if(pulling && (get_dist(src, pulling) > 1))
+		pulling = null
+		user.pulledby = null
+		if(user==pulling)
+			return
+	if(pulling && (get_dir(src.loc, pulling.loc) == direction))
+		to_chat(user, SPAN_WARNING("You cannot go there."))
+		return
+
+	driving = 1
+	var/turf/T = null
+	if(pulling)
+		T = pulling.loc
+		if(get_dist(src, pulling) >= 1)
+			step(pulling, get_dir(pulling.loc, src.loc))
+	step(src, direction)
+	set_dir(direction)
+	if(pulling)
+		if(pulling.loc == src.loc)
+			pulling.forceMove(T)
+		else
+			spawn(0)
+			if(get_dist(src, pulling) > 1)
+				pulling = null
+				user.pulledby = null
+			pulling.set_dir(get_dir(pulling, src))
+	driving = 0
+
+
+/obj/structure/cart/Move()
+	. = ..()
+	if (pulling && (get_dist(src, pulling) > 1))
+		pulling.pulledby = null
+		to_chat(pulling, SPAN_WARNING("You lost your grip!"))
+		pulling = null
+	if(has_gravity())
+		playsound(src, movesound, 50, 1)
+
+/obj/structure/cart/CtrlClick(var/mob/user)
+	if(in_range(src, user))
+		if(!ishuman(user))	return
+		if(!pulling)
+			pulling = user
+			user.pulledby = src
+			if(user.pulling)
+				user.stop_pulling()
+			user.set_dir(get_dir(user, src))
+			to_chat(user, SPAN_NOTICE("You grip \the [name]'s handles."))
+		else
+			to_chat(user, SPAN_NOTICE("You let go of \the [name]'s handles."))
+			pulling.pulledby = null
+			pulling = null
+		return
+
+/obj/structure/cart/CanPass(atom/movable/mover, turf/target, height=0, air_group=0)
+	if(air_group || (height==0))
+		return TRUE
+	if(mover?.movement_type & PHASING)
+		return TRUE
+	if(istype(mover) && mover.pass_flags & PASSTABLE)
+		return TRUE
+	if(istype(mover, /mob/living) && mover == pulling)
+		return TRUE
+	else
+		if(istype(mover, /obj/projectile))
+			return prob(20)
+		else
+			return !density
+
+ABSTRACT_TYPE(/obj/structure/cart/storage)
+	var/has_items = FALSE
+
+	/// Used for displaying and handling radial menu. Collective list of every single item this object contains.
+	var/list/storage_contents = list()
+
+/obj/structure/cart/storage/proc/handle_storing(var/attacking_item, var/mob/user, var/should_store, var/storage_is_full)
+
+/obj/structure/cart/storage/proc/get_storage_contents_list()
+
+/obj/structure/cart/storage/take_apart(var/mob/user = null, var/obj/I)
+	if(has_items)
+		spill()
+	. = ..()