Enable construction of glass airlocks

code/game/machinery/doors/airlock.dm

@@ -94,6 +94,7 @@
 	name = "Glass Airlock"
 	icon = 'icons/obj/doors/Doorglass.dmi'
 	opacity = 0
+	assembly_type = /obj/structure/door_assembly/door_assembly_glass
 	glass = 1
 	doorOpen = 'sound/machines/windowdoor.ogg'
 	doorClose = 'sound/machines/windowdoor.ogg'

code/game/objects/items/stacks/sheets/sheet_types.dm

@@ -63,13 +63,13 @@ var/global/list/datum/stack_recipe/metal_recipes = list(
 		new /datum/stack_recipe("mining airlock assembly", /obj/structure/door_assembly/door_assembly_min, 4, time = 50, one_per_turf = 1, on_floor = 1),
 		new /datum/stack_recipe("atmospherics airlock assembly", /obj/structure/door_assembly/door_assembly_atmo, 4, time = 50, one_per_turf = 1, on_floor = 1),
 		new /datum/stack_recipe("research airlock assembly", /obj/structure/door_assembly/door_assembly_research, 4, time = 50, one_per_turf = 1, on_floor = 1),
-/*		new /datum/stack_recipe("science airlock assembly", /obj/structure/door_assembly/door_assembly_science, 4, time = 50, one_per_turf = 1, on_floor = 1), */
 		new /datum/stack_recipe("medical airlock assembly", /obj/structure/door_assembly/door_assembly_med, 4, time = 50, one_per_turf = 1, on_floor = 1),
 		new /datum/stack_recipe("maintenance airlock assembly", /obj/structure/door_assembly/door_assembly_mai, 4, time = 50, one_per_turf = 1, on_floor = 1),
 		new /datum/stack_recipe("external airlock assembly", /obj/structure/door_assembly/door_assembly_ext, 4, time = 50, one_per_turf = 1, on_floor = 1),
 		new /datum/stack_recipe("freezer airlock assembly", /obj/structure/door_assembly/door_assembly_fre, 4, time = 50, one_per_turf = 1, on_floor = 1),
 		new /datum/stack_recipe("airtight hatch assembly", /obj/structure/door_assembly/door_assembly_hatch, 4, time = 50, one_per_turf = 1, on_floor = 1),
 		new /datum/stack_recipe("maintenance hatch assembly", /obj/structure/door_assembly/door_assembly_mhatch, 4, time = 50, one_per_turf = 1, on_floor = 1),
+		new /datum/stack_recipe("glass airlock assembly", /obj/structure/door_assembly/door_assembly_glass, 4, time = 50, one_per_turf = 1, on_floor = 1),
 		new /datum/stack_recipe("high security airlock assembly", /obj/structure/door_assembly/door_assembly_highsecurity, 4, time = 50, one_per_turf = 1, on_floor = 1),
 		new /datum/stack_recipe("multi-tile airlock assembly", /obj/structure/door_assembly/multi_tile, 4, time = 50, one_per_turf = 1, on_floor = 1),
 	), 4),

code/game/objects/structures/door_assembly.dm

@@ -1,4 +1,4 @@
-obj/structure/door_assembly
+/obj/structure/door_assembly
 	icon = 'icons/obj/doors/door_assembly.dmi'
 
 	name = "Airlock Assembly"
@@ -14,119 +14,133 @@ obj/structure/door_assembly
 	var/glass = 0 // 0 = glass can be installed. -1 = glass can't be installed. 1 = glass is already installed. Text = mineral plating is installed instead.
 	var/created_name = null
 
-	New()
-		update_state()
+/obj/structure/door_assembly/New()
+	update_state()
 
-obj/structure/door_assembly/door_assembly_com
+/obj/structure/door_assembly/door_assembly_com
 	base_icon_state = "com"
 	base_name = "Command Airlock"
 	glass_type = "/glass_command"
 	airlock_type = "/command"
 
-obj/structure/door_assembly/door_assembly_sec
+/obj/structure/door_assembly/door_assembly_sec
 	base_icon_state = "sec"
 	base_name = "Security Airlock"
 	glass_type = "/glass_security"
 	airlock_type = "/security"
 
-obj/structure/door_assembly/door_assembly_eng
+/obj/structure/door_assembly/door_assembly_eng
 	base_icon_state = "eng"
 	base_name = "Engineering Airlock"
 	glass_type = "/glass_engineering"
 	airlock_type = "/engineering"
 
-obj/structure/door_assembly/door_assembly_min
+/obj/structure/door_assembly/door_assembly_min
 	base_icon_state = "min"
 	base_name = "Mining Airlock"
 	glass_type = "/glass_mining"
 	airlock_type = "/mining"
 
-obj/structure/door_assembly/door_assembly_atmo
+/obj/structure/door_assembly/door_assembly_atmo
 	base_icon_state = "atmo"
 	base_name = "Atmospherics Airlock"
 	glass_type = "/glass_atmos"
 	airlock_type = "/atmos"
 
-obj/structure/door_assembly/door_assembly_research
+/obj/structure/door_assembly/door_assembly_research
 	base_icon_state = "res"
 	base_name = "Research Airlock"
 	glass_type = "/glass_research"
 	airlock_type = "/research"
 
-obj/structure/door_assembly/door_assembly_science
+/obj/structure/door_assembly/door_assembly_science
 	base_icon_state = "sci"
 	base_name = "Science Airlock"
 	glass_type = "/glass_science"
 	airlock_type = "/science"
 
-obj/structure/door_assembly/door_assembly_med
+/obj/structure/door_assembly/door_assembly_med
 	base_icon_state = "med"
 	base_name = "Medical Airlock"
 	glass_type = "/glass_medical"
 	airlock_type = "/medical"
 
-obj/structure/door_assembly/door_assembly_mai
+/obj/structure/door_assembly/door_assembly_mai
 	base_icon_state = "mai"
 	base_name = "Maintenance Airlock"
 	airlock_type = "/maintenance"
 	glass = -1
 
-obj/structure/door_assembly/door_assembly_ext
+/obj/structure/door_assembly/door_assembly_ext
 	base_icon_state = "ext"
 	base_name = "External Airlock"
 	airlock_type = "/external"
 	glass = -1
 
-obj/structure/door_assembly/door_assembly_fre
+/obj/structure/door_assembly/door_assembly_fre
 	base_icon_state = "fre"
 	base_name = "Freezer Airlock"
 	airlock_type = "/freezer"
 	glass = -1
 
-obj/structure/door_assembly/door_assembly_hatch
+/obj/structure/door_assembly/door_assembly_hatch
 	base_icon_state = "hatch"
 	base_name = "Airtight Hatch"
 	airlock_type = "/hatch"
 	glass = -1
 
-obj/structure/door_assembly/door_assembly_mhatch
+/obj/structure/door_assembly/door_assembly_mhatch
 	base_icon_state = "mhatch"
 	base_name = "Maintenance Hatch"
 	airlock_type = "/maintenance_hatch"
 	glass = -1
 
-obj/structure/door_assembly/door_assembly_highsecurity // Borrowing this until WJohnston makes sprites for the assembly
+/obj/structure/door_assembly/door_assembly_glass
+	base_icon_state = "glass"
+	base_name = "Glass Airlock"
+	airlock_type = "/glass"
+	glass_type = "/glass"
+	var/list/items_allowed // The glass airlock does not have a "base" type to which glass can be inserted, so this list is used to ensure players have to insert reinforced glass first before constructing it
+	
+/obj/structure/door_assembly/door_assembly_glass/New()
+	..()
+	items_allowed = typecacheof(list(/obj/item/weapon/weldingtool, /obj/item/weapon/wrench, /obj/item/weapon/pen, /obj/item/stack/sheet/rglass))
+	
+/obj/structure/door_assembly/door_assembly_glass/attackby(obj/item/W as obj, mob/user as mob, params)
+	if(is_type_in_list(W, items_allowed) || glass == 1)
+		..()
+	else if(istype(W, /obj/item/stack/cable_coil)
+		to_chat(user, "<span class='warning'>You need to insert the airlock's glass first.</span>")
+	else
+		..()
+	
+/obj/structure/door_assembly/door_assembly_highsecurity // Borrowing this until WJohnston makes sprites for the assembly
 	base_icon_state = "highsec"
 	base_name = "High Security Airlock"
 	airlock_type = "/highsecurity"
 	glass = -1
 
-obj/structure/door_assembly/door_assembly_shuttle
+/obj/structure/door_assembly/door_assembly_shuttle
 	base_icon_state = "shuttle"
 	base_name = "shuttle airlock"
 	airlock_type = "/shuttle"
 	glass = -1
 
-obj/structure/door_assembly/multi_tile
+/obj/structure/door_assembly/multi_tile
 	icon = 'icons/obj/doors/door_assembly2x1.dmi'
 	dir = EAST
 	var/width = 1
-/*Temporary until we get sprites.
-	glass_type = "/multi_tile/glass"
-	airlock_type = "/multi_tile/maint"
-	glass = 1*/
 	base_icon_state = "g" //Remember to delete this line when reverting "glass" var to 1.
 	airlock_type = "/multi_tile/glass"
 	glass = -1 //To prevent bugs in deconstruction process.
 
-
 /obj/structure/door_assembly/door_assembly_cult
 	base_name = "cult airlock assembly"
 	icon = 'icons/obj/doors/Doorcult.dmi'
 	base_icon_state ="construction"
 	airlock_type = "/cult"
 
-obj/structure/door_assembly/multi_tile/New()
+/obj/structure/door_assembly/multi_tile/New()
 	if(dir in list(EAST, WEST))
 		bound_width = width * world.icon_size
 		bound_height = world.icon_size
@@ -135,7 +149,7 @@ obj/structure/door_assembly/multi_tile/New()
 		bound_height = width * world.icon_size
 	update_state()
 
-obj/structure/door_assembly/multi_tile/Move()
+/obj/structure/door_assembly/multi_tile/Move()
 	. = ..()
 	if(dir in list(EAST, WEST))
 		bound_width = width * world.icon_size