Sandbags can be bought at the outpost and deconstructed by click drag…

…ging them onto yourself (shiptest-ss13#3225)

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## About The Pull Request

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Adds empty sandbags to the outpost, 7 sandbags for 150 under the sec
supply tab
Sandbags can be deconned by click dragging them onto your mob and a
short do after. Adds an examine message for how to decon.

## Why It's Good For The Game

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benefit the game. If you can't justify it in words, it might not be
worth adding. -->

Sandbags are odious to use currently, being effectively single use once
deployed and just sitting there once the fight's done. If you want to
clean them up afterwards you're stuck smashing them apart until they
break These changes should make sandbags more accessible and practical
to use.

## Changelog

:cl:
add: Sandbags can be deconed by click dragging them onto your mob.
add: Sandbags to the outpost for 150 credits.
/:cl:

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code/game/machinery/deployable.dm

@@ -111,6 +111,24 @@
 	smoothing_groups = list(SMOOTH_GROUP_SANDBAGS)
 	canSmoothWith = list(SMOOTH_GROUP_SANDBAGS, SMOOTH_GROUP_WALLS, SMOOTH_GROUP_SECURITY_BARRICADE)
 
+/obj/structure/barricade/sandbags/MouseDrop(over_object, src_location, over_location)
+	. = ..()
+	if(over_object == usr && Adjacent(usr))
+		if(src.flags_1 & NODECONSTRUCT_1)
+			return
+		if(!usr.canUseTopic(src, BE_CLOSE, ismonkey(usr)))
+			return
+		usr.visible_message(span_notice("[usr] begins pulling apart \the [src.name]..."), span_notice("You begin pulling apart \the [src.name]..."))
+		if(do_after(usr, 30, usr))
+			deconstruct()
+
+/obj/structure/barricade/sandbags/make_debris()
+	new /obj/item/stack/sheet/mineral/sandbags(get_turf(src), 1)
+
+/obj/structure/barricade/sandbags/examine(mob/user)
+	. = ..()
+	. += span_notice("You could probably <b>pull</b> the [src.name] by dragging it onto yourself.")
+
 /obj/structure/barricade/security
 	name = "security barrier"
 	desc = "A deployable barrier. Provides good cover in fire fights."

code/modules/cargo/packs/sec_supply.dm

@@ -30,6 +30,13 @@
 	cost = 2000
 	crate_name = "security barriers crate"
 
+/datum/supply_pack/sec_supply/empty_sandbags
+	name = "Empty Sandbags"
+	desc = "Contains one box of seven empty sandbags for deployable cover in the field. Sand not included."
+	contains = list(/obj/item/storage/box/emptysandbags)
+	cost = 150
+	crate_name = "sandbag crate"
+
 /datum/supply_pack/sec_supply/wall_flash
 	name = "Wall-Mounted Flash Crate"
 	desc = "Contains four wall-mounted flashes."