Merge pull request #6300 from Thunder12345/grenade_slugs

Adds a new FRAG-12 explosive shotgun shell

code/modules/crafting/recipes.dm

@@ -117,6 +117,16 @@
 	tools = list(/obj/item/weapon/screwdriver)
 	time = 5
 
+/datum/table_recipe/frag12
+	name = "FRAG-12 Shell"
+	result = /obj/item/ammo_casing/shotgun/frag12
+	reqs = list(/obj/item/ammo_casing/shotgun/techshell = 1,
+				/datum/reagent/glycerol = 5,
+				/datum/reagent/toxin/acid = 5,
+				/datum/reagent/toxin/acid/polyacid = 5,)
+	tools = list(/obj/item/weapon/screwdriver)
+	time = 5
+
 /datum/table_recipe/ishotgun
 	name = "Improvised Shotgun"
 	result = /obj/item/weapon/gun/projectile/revolver/doublebarrel/improvised

code/modules/projectiles/ammunition/ammo_casings.dm

@@ -96,6 +96,12 @@
 	icon_state = "ishell"
 	projectile_type = /obj/item/projectile/bullet/incendiary/shell
 
+/obj/item/ammo_casing/shotgun/frag12
+	name = "FRAG-12 slug"
+	desc = "A high explosive breaching round for a 12 gauge shotgun."
+	icon_state = "heshell"
+	projectile_type = /obj/item/projectile/bullet/frag12
+
 /obj/item/ammo_casing/shotgun/incendiary/dragonsbreath
 	name = "dragonsbreath shell"
 	desc = "A shotgun shell which fires a spread of incendiary pellets."
@@ -157,4 +163,4 @@
 	desc = "A cased high explosive grenade that can only be activated once fired out of a grenade launcher."
 	caliber = "40mm"
 	icon_state = "40mmHE"
-	projectile_type = /obj/item/projectile/bullet/a40mm
+	projectile_type = /obj/item/projectile/bullet/a40mm

code/modules/projectiles/projectile/special.dm

@@ -168,3 +168,14 @@ obj/item/projectile/kinetic/New()
 	if(!gun)
 		qdel(src)
 	gun.create_portal(src)
+
+
+/obj/item/projectile/bullet/gyro/on_hit(atom/target, blocked = 0)
+	explosion(target, -1, 0, 2)
+	return 1
+
+
+/obj/item/projectile/bullet/frag12
+	name ="explosive slug"
+	damage = 25
+	weaken = 5