Let's not forget the new files.

Also some tiny fixes, typo, and things I forgot.

code/modules/hydroponics/grown/mushrooms.dm

@@ -20,6 +20,7 @@
 	oneharvest = 1
 	growthstages = 4
 	plant_type = PLANT_MUSHROOM
+	growing_icon = 'icons/obj/hydroponics/growing_mushrooms.dmi'
 	reagents_add = list("morphine" = 0.35, "charcoal" = 0.35, "nutriment" = 0)
 
 /obj/item/weapon/reagent_containers/food/snacks/grown/mushroom/reishi
@@ -46,6 +47,7 @@
 	oneharvest = 1
 	growthstages = 3
 	plant_type = PLANT_MUSHROOM
+	growing_icon = 'icons/obj/hydroponics/growing_mushrooms.dmi'
 	mutatelist = list(/obj/item/seeds/angel)
 	reagents_add = list("mushroomhallucinogen" = 0.04, "amatoxin" = 0.35, "nutriment" = 0)
 
@@ -74,6 +76,7 @@
 	oneharvest = 1
 	growthstages = 3
 	plant_type = PLANT_MUSHROOM
+	growing_icon = 'icons/obj/hydroponics/growing_mushrooms.dmi'
 	reagents_add = list("mushroomhallucinogen" = 0.04, "amatoxin" = 0.1, "nutriment" = 0, "amanitin" = 0.2)
 	rarity = 30
 	origin_tech = "biotech=5"
@@ -101,6 +104,7 @@
 	oneharvest = 1
 	growthstages = 3
 	plant_type = PLANT_MUSHROOM
+	growing_icon = 'icons/obj/hydroponics/growing_mushrooms.dmi'
 	reagents_add = list("mushroomhallucinogen" = 0.25, "nutriment" = 0.02)
 
 /obj/item/weapon/reagent_containers/food/snacks/grown/mushroom/libertycap
@@ -126,6 +130,7 @@
 	oneharvest = 1
 	growthstages = 3
 	plant_type = PLANT_MUSHROOM
+	growing_icon = 'icons/obj/hydroponics/growing_mushrooms.dmi'
 	mutatelist = list(/obj/item/seeds/plump/walkingmushroom)
 	reagents_add = list("vitamin" = 0.04, "nutriment" = 0.1)
 
@@ -149,6 +154,7 @@
 	endurance = 30
 	maturation = 5
 	yield = 1
+	growing_icon = 'icons/obj/hydroponics/growing_mushrooms.dmi'
 	mutatelist = list()
 	reagents_add = list("vitamin" = 0.05, "nutriment" = 0.15)
 	rarity = 30
@@ -191,6 +197,7 @@
 	oneharvest = 1
 	growthstages = 3
 	plant_type = PLANT_MUSHROOM
+	growing_icon = 'icons/obj/hydroponics/growing_mushrooms.dmi'
 	reagents_add = list("nutriment" = 0.1)
 
 /obj/item/weapon/reagent_containers/food/snacks/grown/mushroom/chanterelle
@@ -220,6 +227,7 @@
 	plant_type = PLANT_MUSHROOM
 	rarity = 20
 	genes = list(/datum/plant_gene/trait/glow)
+	growing_icon = 'icons/obj/hydroponics/growing_mushrooms.dmi'
 	mutatelist = list(/obj/item/seeds/glowshroom/glowcap)
 	reagents_add = list("radium" = 0.1, "phosphorus" = 0.1, "nutriment" = 0.04)
 

code/modules/hydroponics/grown/towercap.dm

@@ -13,6 +13,7 @@
 	potency = 50
 	oneharvest = 1
 	growthstages = 3
+	growing_icon = 'icons/obj/hydroponics/growing_mushrooms.dmi'
 	icon_dead = "towercap-dead"
 	plant_type = PLANT_MUSHROOM
 	mutatelist = list(/obj/item/seeds/tower/steel)

code/modules/hydroponics/seeds.dm

@@ -247,6 +247,10 @@
 // Maybe some day it would be used as unit test.
 /proc/check_plants_growth_stages_icons()
 	var/list/states = icon_states('icons/obj/hydroponics/growing.dmi')
+	states |= icon_states('icons/obj/hydroponics/growing_fruits.dmi')
+	states |= icon_states('icons/obj/hydroponics/growing_flowers.dmi')
+	states |= icon_states('icons/obj/hydroponics/growing_mushrooms.dmi')
+	states |= icon_states('icons/obj/hydroponics/growing_vegetables.dmi')
 	var/list/paths = typesof(/obj/item/seeds) - /obj/item/seeds - typesof(/obj/item/seeds/sample)
 
 	for(var/seedpath in paths)

code/modules/projectiles/guns/projectile/laser_gatling.dm

@@ -0,0 +1,154 @@
+
+
+//The ammo/gun is stored in a back slot item
+/obj/item/weapon/minigunpack
+	name = "backpack power source"
+	desc = "The massive external power source for the laser gatling gun"
+	icon = 'icons/obj/guns/minigun.dmi'
+	icon_state = "holstered"
+	item_state = "backpack"
+	slot_flags = SLOT_BACK
+	w_class = 5
+	var/obj/item/weapon/gun/projectile/minigun/gun = null
+	var/armed = 0 //whether the gun is attached, 0 is attached, 1 is the gun is wielded.
+	var/overheat = 0
+	var/overheat_max = 40
+	var/heat_diffusion = 1
+
+/obj/item/weapon/minigunpack/New()
+	gun = new(src)
+	SSobj.processing += src
+	..()
+
+/obj/item/weapon/minigunpack/Destroy()
+	SSobj.processing -= src
+	..()
+
+/obj/item/weapon/minigunpack/process()
+	overheat = max(0, overheat - heat_diffusion)
+
+/obj/item/weapon/minigunpack/attack_hand(var/mob/living/carbon/user)
+	if(src.loc == user)
+		if(!armed)
+			if(user.get_item_by_slot(slot_back) == src)
+				armed = 1
+				if(!user.put_in_hands(gun))
+					armed = 0
+					user << "<span class='warning'>You need a free hand to hold the gun!</span>"
+					return
+				update_icon()
+				gun.forceMove(user)
+				user.update_inv_back()
+		else
+			user << "<span class='warning'>You are already holding the gun!</span>"
+	else
+		..()
+
+/obj/item/weapon/minigunpack/attackby(obj/item/weapon/W, mob/user, params)
+	if(W == gun) //Don't need armed check, because if you have the gun assume its armed.
+		user.unEquip(gun,1)
+	else
+		..()
+
+/obj/item/weapon/minigunpack/dropped(mob/user)
+	if(armed)
+		user.unEquip(gun,1)
+
+/obj/item/weapon/minigunpack/MouseDrop(atom/over_object)
+	if(armed)
+		return
+	if(iscarbon(usr))
+		var/mob/M = usr
+
+		if(!over_object)
+			return
+
+		if(!M.restrained() && !M.stat)
+
+			if(istype(over_object, /obj/screen/inventory/hand))
+				var/obj/screen/inventory/hand/H = over_object
+				if(!M.unEquip(src))
+					return
+				switch(H.slot_id)
+					if(slot_r_hand)
+						M.put_in_r_hand(src)
+					if(slot_l_hand)
+						M.put_in_l_hand(src)
+
+
+/obj/item/weapon/minigunpack/update_icon()
+	if(armed)
+		icon_state = "notholstered"
+	else
+		icon_state = "holstered"
+
+/obj/item/weapon/minigunpack/proc/attach_gun(var/mob/user)
+	if(!gun)
+		gun = new(src)
+	gun.forceMove(src)
+	armed = 0
+	if(user)
+		user << "<span class='notice'>You attach the [gun.name] to the [name].</span>"
+	else
+		src.visible_message("<span class='warning'>The [gun.name] snaps back onto the [name]!</span>")
+	update_icon()
+	user.update_inv_back()
+
+
+/obj/item/weapon/gun/projectile/minigun
+	name = "laser gatling gun"
+	desc = "An advanced laser cannon with an incredible rate of fire. Requires a bulky backpack power source to use."
+	icon = 'icons/obj/guns/minigun.dmi'
+	icon_state = "minigun_spin"
+	item_state = "minigun"
+	origin_tech = "combat=6;powerstorage=5;magnets=4"
+	flags = CONDUCT | HANDSLOW
+	slowdown = 1
+	slot_flags = null
+	w_class = 5
+	materials = list()
+	burst_size = 3
+	automatic = 0
+	fire_delay = 1
+	weapon_weight = WEAPON_HEAVY
+	fire_sound = 'sound/weapons/Laser.ogg'
+	mag_type = /obj/item/ammo_box/magazine/internal/minigun
+	var/obj/item/weapon/minigunpack/ammo_pack
+
+/obj/item/weapon/gun/projectile/minigun/attack_self(mob/living/user)
+	return
+
+/obj/item/weapon/gun/projectile/minigun/dropped(mob/user)
+	if(ammo_pack)
+		ammo_pack.attach_gun(user)
+	else
+		qdel(src)
+
+/obj/item/weapon/gun/projectile/minigun/shoot_live_shot(mob/living/user as mob|obj, pointblank = 0, mob/pbtarget = null, message = 1)
+	if(ammo_pack)
+		if(ammo_pack.overheat < ammo_pack.overheat_max)
+			. = ..()
+			ammo_pack.overheat++
+		else
+			user << "The gun's heat sensor locked the trigger to prevent lens damage."
+
+/obj/item/weapon/gun/projectile/minigun/afterattack(atom/target, mob/living/user, flag, params)
+	if(!ammo_pack || ammo_pack.loc != user)
+		user << "You need the backpack power source to fire the gun!"
+	..()
+
+/obj/item/weapon/gun/projectile/minigun/New()
+	if(!ammo_pack)
+		if(istype(loc,/obj/item/weapon/minigunpack)) //We should spawn inside a ammo pack so let's use that one.
+			ammo_pack = loc
+		else
+			qdel(src)//No pack, no gun
+	..()
+
+/obj/item/weapon/gun/projectile/minigun/dropped(mob/living/user)
+	ammo_pack.attach_gun(user)
+	return
+
+/obj/item/weapon/gun/projectile/minigun/process_chamber(eject_casing = 0, empty_chamber = 1)
+	..()
+