Tweak railguns, add flechette pistol

code/modules/projectiles/ammunition/magnetic.dm

@@ -2,7 +2,7 @@
 	name = "flechette magazine"
 	desc = "A magazine containing steel flechettes."
 	icon = 'icons/obj/ammo.dmi'
-	icon_state = "5.56"
+	icon_state = "caseless-mag"
 	w_class = ITEMSIZE_SMALL
 	matter = list(DEFAULT_WALL_MATERIAL = 1800)
 	origin_tech = list(TECH_COMBAT = 1)
@@ -11,4 +11,9 @@
 
 /obj/item/weapon/magnetic_ammo/examine(mob/user)
 	. = ..()
-	. += "There [(remaining == 1)? "is" : "are"] [remaining] flechette\s left!"
+	. += "There [(remaining == 1)? "is" : "are"] [remaining] flechette\s left!"
+
+/obj/item/weapon/magnetic_ammo/pistol
+	name = "flechette magazine (small)"
+	desc = "A magazine containing smaller steel flechettes, intended for a pistol."
+	icon_state = "caseless-mag-short"

code/modules/projectiles/guns/magnetic/magnetic.dm

@@ -1,3 +1,10 @@
+#define ICON_CELL 1
+#define ICON_CAP 2
+#define ICON_BAD 4
+#define ICON_CHARGE 8
+#define ICON_READY 16
+#define ICON_LOADED 32
+
 /obj/item/weapon/gun/magnetic
 	name = "improvised coilgun"
 	desc = "A coilgun hastily thrown together out of a basic frame and advanced power storage components. Is it safe for it to be duct-taped together like that?"
@@ -9,8 +16,8 @@
 	w_class = ITEMSIZE_LARGE
 
 	var/obj/item/weapon/cell/cell                              // Currently installed powercell.
-	var/obj/item/weapon/stock_parts/capacitor/capacitor        // Installed capacitor. Higher rating == faster charge between shots.
-	var/obj/item/weapon/stock_parts/manipulator/manipulator    // Installed manipulator. Mostly for Phoron Bore, higher rating == less mats consumed upon firing
+	var/obj/item/weapon/stock_parts/capacitor/capacitor        // Installed capacitor. Higher rating == faster charge between shots. Set to a path to spawn with one of that type.
+	var/obj/item/weapon/stock_parts/manipulator/manipulator    // Installed manipulator. Mostly for Phoron Bore, higher rating == less mats consumed upon firing. Set to a path to spawn with one of that type.
 	var/removable_components = TRUE                            // Whether or not the gun can be dismantled.
 	var/gun_unreliable = 15                                    // Percentage chance of detonating in your hands.
 
@@ -21,18 +28,34 @@
 	var/power_cost = 950                                       // Cost per fire, should consume almost an entire basic cell.
 	var/power_per_tick                                         // Capacitor charge per process(). Updated based on capacitor rating.
 
-/obj/item/weapon/gun/magnetic/New()
+	var/state = 0
+
+/obj/item/weapon/gun/magnetic/Initialize()
+	. = ..()
+	// So you can have some spawn with components
+	if(ispath(cell))
+		cell = new cell(src)
+	if(ispath(capacitor))
+		capacitor = new capacitor(src)
+		capacitor.charge = capacitor.max_charge
+	if(ispath(manipulator))
+		manipulator = new manipulator(src)
+	if(ispath(loaded))
+		loaded = new loaded(src)
+	
 	START_PROCESSING(SSobj, src)
+	
 	if(capacitor)
 		power_per_tick = (power_cost*0.15) * capacitor.rating
+	
 	update_icon()
-	. = ..()
 
 /obj/item/weapon/gun/magnetic/Destroy()
 	STOP_PROCESSING(SSobj, src)
 	QDEL_NULL(cell)
 	QDEL_NULL(loaded)
 	QDEL_NULL(capacitor)
+	QDEL_NULL(manipulator)
 	. = ..()
 
 /obj/item/weapon/gun/magnetic/get_cell()
@@ -45,25 +68,56 @@
 				capacitor.charge(power_per_tick)
 		else
 			capacitor.use(capacitor.charge * 0.05)
-	update_icon()
+	
+	update_state() // May update icon, only if things changed.
 
-/obj/item/weapon/gun/magnetic/update_icon()
-	var/list/overlays_to_add = list()
+/obj/item/weapon/gun/magnetic/proc/update_state()
+	var/newstate = 0
+
+	// Parts or lack thereof
 	if(removable_components)
 		if(cell)
-			overlays_to_add += image(icon, "[icon_state]_cell")
+			newstate |= ICON_CELL
 		if(capacitor)
-			overlays_to_add += image(icon, "[icon_state]_capacitor")
+			newstate |= ICON_CAP
+	
+	// Functional state
 	if(!cell || !capacitor)
-		overlays_to_add += image(icon, "[icon_state]_red")
+		newstate |= ICON_BAD
 	else if(capacitor.charge < power_cost)
-		overlays_to_add += image(icon, "[icon_state]_amber")
+		newstate |= ICON_CHARGE
 	else
-		overlays_to_add += image(icon, "[icon_state]_green")
+		newstate |= ICON_READY
+	
+	// Ammo indicator
 	if(loaded)
-		overlays_to_add += image(icon, "[icon_state]_loaded")
+		newstate |= ICON_LOADED
+
+	// Only update if the state has changed
+	var/needs_update = FALSE
+	if(state != newstate)
+		needs_update = TRUE
+
+	state = newstate
+	
+	if(needs_update)
+		update_icon()
+
+/obj/item/weapon/gun/magnetic/update_icon()
+	cut_overlays()
+	if(state & ICON_CELL)
+		add_overlay("[icon_state]_cell")
+	if(state & ICON_CAP)
+		add_overlay("[icon_state]_capacitor")
+	if(state & ICON_BAD)
+		add_overlay("[icon_state]_red")
+	if(state & ICON_CHARGE)
+		add_overlay("[icon_state]_amber")
+	if(state & ICON_READY)
+		add_overlay("[icon_state]_green")
+	if(state & ICON_LOADED)
+		add_overlay("[icon_state]_loaded")
 
-	overlays = overlays_to_add
 	..()
 
 /obj/item/weapon/gun/magnetic/proc/show_ammo()
@@ -83,10 +137,10 @@
 		if(capacitor)
 			. += "<span class='notice'>The installed [capacitor.name] has a charge level of [round((capacitor.charge/capacitor.max_charge)*100)]%.</span>"
 
-		if(!cell || !capacitor)
+		if(state & ICON_BAD)
 			. += "<span class='notice'>The capacitor charge indicator is blinking <font color ='[COLOR_RED]'>red</font>. Maybe you should check the cell or capacitor.</span>"
 		else
-			if(capacitor.charge < power_cost)
+			if(state & ICON_CHARGE)
 				. += "<span class='notice'>The capacitor charge indicator is <font color ='[COLOR_ORANGE]'>amber</font>.</span>"
 			else
 				. += "<span class='notice'>The capacitor charge indicator is <font color ='[COLOR_GREEN]'>green</font>.</span>"
@@ -260,3 +314,10 @@
 	cell = new /obj/item/weapon/cell/high
 	capacitor = new /obj/item/weapon/stock_parts/capacitor
 	. = ..()
+
+#undef ICON_CELL
+#undef ICON_CAP
+#undef ICON_BAD
+#undef ICON_CHARGE
+#undef ICON_READY
+#undef ICON_LOADED

code/modules/projectiles/guns/magnetic/magnetic_railgun.dm

@@ -3,32 +3,25 @@
 	desc = "The Mars Military Industries MI-76 Thunderclap. A man-portable mass driver for squad support anti-armour and destruction of fortifications and emplacements."
 	gun_unreliable = 0
 	icon_state = "railgun"
-	removable_components = FALSE
-	load_type = /obj/item/weapon/rcd_ammo
 	origin_tech = list(TECH_COMBAT = 5, TECH_MATERIAL = 4, TECH_MAGNET = 4)
-	projectile_type = /obj/item/projectile/bullet/magnetic/slug
 	power_cost = 300
 	w_class = ITEMSIZE_HUGE
 	slot_flags = SLOT_BELT
-	loaded = /obj/item/weapon/rcd_ammo/large
 	slowdown = 1	// Slowdown equals slowdown_worn, until we decide to import the system to differentiate between held and worn items
 	fire_delay = 1
 
-	var/initial_cell_type = /obj/item/weapon/cell/hyper
-	var/initial_capacitor_type = /obj/item/weapon/stock_parts/capacitor/adv
+	load_type = /obj/item/weapon/rcd_ammo
+	projectile_type = /obj/item/projectile/bullet/magnetic/slug
+
+	cell = /obj/item/weapon/cell/hyper
+	capacitor = /obj/item/weapon/stock_parts/capacitor/adv
+	loaded = /obj/item/weapon/rcd_ammo/large
+	removable_components = FALSE
+	
 	var/slowdown_held = 2
 	var/slowdown_worn = 1
 	var/empty_sound = 'sound/machines/twobeep.ogg'
 
-/obj/item/weapon/gun/magnetic/railgun/New()
-	capacitor = new initial_capacitor_type(src)
-	capacitor.charge = capacitor.max_charge
-
-	cell = new initial_cell_type(src)
-	if (ispath(loaded))
-		loaded = new loaded
-	. = ..()
-
 // Not going to check type repeatedly, if you code or varedit
 // load_type and get runtime errors, don't come crying to me.
 /obj/item/weapon/gun/magnetic/railgun/show_ammo()
@@ -53,14 +46,15 @@
 	loaded = null
 	visible_message("<span class='warning'>\The [src] beeps and ejects its empty cartridge.</span>","<span class='warning'>There's a beeping sound!</span>")
 	playsound(src, empty_sound, 40, 1)
+	update_state()
 
 /obj/item/weapon/gun/magnetic/railgun/automatic // Adminspawn only, this shit is absurd.
 	name = "\improper RHR accelerator"
 	desc = "The Mars Military Industries MI-227 Meteor. Originally a vehicle-mounted turret weapon for heavy anti-vehicular and anti-structural fire, the fact that it was made man-portable is mindboggling in itself."
 	icon_state = "heavy_railgun"
 
-	initial_cell_type = /obj/item/weapon/cell/infinite
-	initial_capacitor_type = /obj/item/weapon/stock_parts/capacitor/super
+	cell = /obj/item/weapon/cell/infinite
+	capacitor = /obj/item/weapon/stock_parts/capacitor/super
 	fire_delay = 0
 
 	slowdown = 2
@@ -87,8 +81,8 @@
 	icon_state = "flechette_gun"
 	item_state = "z8carbine"
 
-	initial_cell_type = /obj/item/weapon/cell/hyper
-	initial_capacitor_type = /obj/item/weapon/stock_parts/capacitor/adv
+	cell = /obj/item/weapon/cell/hyper
+	capacitor = /obj/item/weapon/stock_parts/capacitor/adv
 
 	fire_delay = 0
 
@@ -109,6 +103,36 @@
 		list(mode_name="short bursts", burst=3, fire_delay=null, move_delay=5, one_handed_penalty=30, burst_accuracy=list(0,-15,-15), dispersion=list(0.0, 0.6, 1.0)),
 		)
 
+/obj/item/weapon/gun/magnetic/railgun/flechette/pistol
+	name = "flechette pistol"
+	desc = "The MI-6a Ullr is a small-form-factor railgun that fires flechette rounds at high velocity. Deadly against armour, but much less effective against soft targets."
+	icon_state = "railpistol"
+	item_state = "combatrevolver"
+	w_class = ITEMSIZE_SMALL
+
+	cell = /obj/item/weapon/cell/super
+	capacitor = /obj/item/weapon/stock_parts/capacitor
+
+	fire_delay = 0
+
+	slot_flags = SLOT_BELT
+
+	slowdown = 0
+	slowdown_held = 0
+	slowdown_worn = 0
+
+	power_cost = 100
+	load_type = /obj/item/weapon/magnetic_ammo/pistol
+	projectile_type = /obj/item/projectile/bullet/magnetic/flechette/small
+	loaded = /obj/item/weapon/magnetic_ammo/pistol
+	removable_components = TRUE
+	empty_sound = 'sound/weapons/smg_empty_alarm.ogg'
+
+	firemodes = list(
+		list(mode_name="semiauto", burst=1, fire_delay=0, move_delay=null, one_handed_penalty=15, burst_accuracy=null, dispersion=null),
+		list(mode_name="short bursts", burst=3, fire_delay=null, move_delay=5, one_handed_penalty=30, burst_accuracy=list(0,-15,-15), dispersion=list(0.0, 0.6, 1.0)),
+	)
+
 /obj/item/weapon/gun/magnetic/railgun/heater
 	name = "coil rifle"
 	desc = "A large rifle designed and produced after the Grey Hour."
@@ -119,8 +143,8 @@
 
 	removable_components = TRUE
 
-	initial_cell_type = /obj/item/weapon/cell/device/weapon
-	initial_capacitor_type = /obj/item/weapon/stock_parts/capacitor
+	cell = /obj/item/weapon/cell/device/weapon
+	capacitor = /obj/item/weapon/stock_parts/capacitor
 
 	fire_delay = 8
 
@@ -152,8 +176,8 @@
 
 	slowdown_held = 0.1
 
-	initial_cell_type = /obj/item/weapon/cell/device/weapon
-	initial_capacitor_type = /obj/item/weapon/stock_parts/capacitor
+	cell = /obj/item/weapon/cell/device/weapon
+	capacitor = /obj/item/weapon/stock_parts/capacitor
 
 	slot_flags = SLOT_BELT|SLOT_HOLSTER
 
@@ -181,8 +205,8 @@
 	icon_state = "railgun_sifguard"
 	item_state = "z8carbine"
 
-	initial_cell_type = /obj/item/weapon/cell/high
-	initial_capacitor_type = /obj/item/weapon/stock_parts/capacitor/adv
+	cell = /obj/item/weapon/cell/high
+	capacitor = /obj/item/weapon/stock_parts/capacitor/adv
 
 	slot_flags = SLOT_BACK
 

code/modules/projectiles/projectile/magnetic.dm

@@ -22,6 +22,13 @@
 	damage = 20
 	armor_penetration = 100
 
+/obj/item/projectile/bullet/magnetic/flechette/small
+	name = "small flechette"
+	icon_state = "flechette"
+	fire_sound = 'sound/weapons/rapidslice.ogg'
+	damage = 12
+	armor_penetration = 100
+
 /obj/item/projectile/bullet/magnetic/flechette/hunting
 	name = "shredder slug"
 	armor_penetration = 30