One Shot RPG (#3433)

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## About The Pull Request
Adds a one-shot rocket launcher to the code. Adjusts the code in some
places to support it being truly one shot. Also adds being able to draw
on rocket launchers for mild entertainment.
Rye did the sprite.
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## Why It's Good For The Game
A disposable anti-armor tool is good for people who are poor and or
frontiersmen.
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## Changelog
Rye, Erika 
:cl:
add: One-Shot Rocket Launcher. A quick solution to an armored problem. 
add: You can now scribble profane things onto the tube of your rocket
launcher. Use this power wisely.
imageadd: Rye: A sprite for a one-shot rocket launcher
/:cl:

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code/modules/projectiles/gun.dm

@@ -70,6 +70,9 @@
 	var/casing_ejector = TRUE
 	///Whether the gun has an internal magazine or a detatchable one. Overridden by BOLT_TYPE_NO_BOLT.
 	var/internal_magazine = FALSE
+	///Whether the gun *can* be reloaded
+	var/sealed_magazine = FALSE
+
 
 	///Phrasing of the magazine in examine and notification messages; ex: magazine, box, etx
 	var/magazine_wording = "magazine"

code/modules/projectiles/guns/ballistic.dm

@@ -205,6 +205,9 @@
 	. = ..()
 	if (.)
 		return
+	if(sealed_magazine)
+		to_chat(user, span_warning("The magazine on [src] is sealed and cannot be reloaded!"))
+		return
 	if (!internal_magazine && istype(A, /obj/item/ammo_box/magazine))
 		var/obj/item/ammo_box/magazine/AM = A
 		if (!magazine)

code/modules/projectiles/guns/ballistic/launchers.dm

@@ -40,30 +40,69 @@
 	actions_types = list()
 	casing_ejector = FALSE
 
+GLOBAL_LIST_INIT(rpg_scrawlings, list(
+	"\"FRONT TOWARDS ENEMY\"",
+	"\"MY WIFE LEFT ME\"",
+	"A Kepori inset in a stylized crimson heart",
+	"\"Eat lead psychohazard!\"",
+	"\"Portable Demotion\"",
+	"A drawing of the Rilena character 'T4L1' smoking a boof",
+	"\"Eat it corpo!\"",
+	"A Sarathi woman in a suggestive pose",
+	"\"Arm this!\""
+))
+
+
 /obj/item/gun/ballistic/rocketlauncher
 	name = "\improper PML-9"
-	desc = "A reusable rocket-propelled grenade launcher. The words \"NT this way\" and an arrow have been written near the barrel."
+	desc = "A reusable rocket-propelled grenade launcher."
 
 	icon_state = "rocketlauncher"
 	item_state = "rocketlauncher"
 	mag_type = /obj/item/ammo_box/magazine/internal/rocketlauncher
 	fire_sound = 'sound/weapons/gun/general/rocket_launch.ogg'
 	load_sound = 'sound/weapons/gun/general/rocket_load.ogg'
-	w_class = WEIGHT_CLASS_BULKY
+	gun_firemodes = list(FIREMODE_SEMIAUTO)
 	burst_size = 1
 	fire_delay = 0.4 SECONDS
-	casing_ejector = FALSE
+
 	weapon_weight = WEAPON_HEAVY
+	w_class = WEIGHT_CLASS_BULKY
+
+	//Bolt
 	bolt_type = BOLT_TYPE_NO_BOLT
-	internal_magazine = TRUE
+
+	///Magazine stuff
 	cartridge_wording = "rocket"
+	internal_magazine = TRUE
 	empty_indicator = TRUE
 	tac_reloads = FALSE
+	casing_ejector = FALSE
+
 	manufacturer = MANUFACTURER_SCARBOROUGH
 
+	attack_verb = list("bludgeoned", "hit", "slammed", "whacked")
+
 	valid_attachments = list()
 	slot_available = list()
 
+	var/rpg_scribble = null
+
+/obj/item/gun/ballistic/rocketlauncher/Initialize()
+	. = ..()
+	rpg_scribble = pick(GLOB.rpg_scrawlings)
+	desc += " [rpg_scribble] is scrawled on the tube"
+
+/obj/item/gun/ballistic/rocketlauncher/attackby(obj/item/A, mob/user, params)
+	. = ..()
+	if(istype(A, /obj/item/pen))
+		rpg_scribble = stripped_input(user, "What are you putting on [src]?", "Rocket Launcher Doodle")
+		if(!rpg_scribble || !length(rpg_scribble))
+			desc = "[src::desc]"
+			return
+		desc = "[src::desc] [rpg_scribble] is scribbled on the body."
+
+
 /obj/item/gun/ballistic/rocketlauncher/afterattack()
 	. = ..()
 	magazine.get_round(FALSE) //Hack to clear the mag after it's fired
@@ -80,6 +119,9 @@
 	righthand_file = 'icons/obj/guns/manufacturer/solararmories/righthand.dmi'
 	mob_overlay_icon = 'icons/obj/guns/manufacturer/solararmories/onmob.dmi'
 
+	//recoiless rifles use shells
+	cartridge_wording = "shell"
+
 	icon_state = "panzerfaust"
 	item_state = "panzerfaust"
 	manufacturer = MANUFACTURER_SOLARARMORIES

code/modules/projectiles/guns/manufacturer/frontier_import/ballistics.dm

@@ -227,3 +227,45 @@
 	caliber = "12ga"
 	max_ammo = 40
 	w_class = WEIGHT_CLASS_NORMAL
+
+
+/obj/item/gun/ballistic/rocketlauncher/oneshot
+	name = "\improper Hammer"
+	desc = "A disposable rocket-propelled grenade launcher loaded with a HEDP shell."
+
+	icon = 'icons/obj/guns/manufacturer/frontier_import/48x32.dmi'
+	lefthand_file = 'icons/obj/guns/manufacturer/frontier_import/lefthand.dmi'
+	righthand_file = 'icons/obj/guns/manufacturer/frontier_import/righthand.dmi'
+	mob_overlay_icon = 'icons/obj/guns/manufacturer/frontier_import/onmob.dmi'
+	base_icon_state = "rpg"
+	icon_state = "rpg"
+	item_state = "rpg"
+
+	mag_type = /obj/item/ammo_box/magazine/internal/rocketlauncher/oneshot
+	fire_sound = 'sound/weapons/gun/general/rocket_launch.ogg'
+	load_sound = 'sound/weapons/gun/general/rocket_load.ogg'
+	weapon_weight = WEAPON_HEAVY
+	bolt_type = BOLT_TYPE_NO_BOLT
+
+	cartridge_wording = "rocket"
+	empty_indicator = FALSE
+	sealed_magazine = TRUE
+	manufacturer = MANUFACTURER_IMPORT
+	slot_flags = ITEM_SLOT_BACK
+
+
+/obj/item/gun/ballistic/rocketlauncher/oneshot/Initialize()
+	. = ..()
+	if(prob(1))
+		name = "\improper Mallet"
+
+/obj/item/gun/ballistic/rocketlauncher/oneshot/examine(mob/user)
+	. = ..()
+	if(!chambered)
+		. += span_warning("It has been spent, and is now useless.")
+
+/obj/item/ammo_box/magazine/internal/rocketlauncher/oneshot
+	name = "oneshot rocket launcher magazine"
+	ammo_type = /obj/item/ammo_casing/caseless/rocket/hedp
+	caliber = "84mm"
+	max_ammo = 1