Pass I

code/game/objects/items/devices/debugger.dm

@@ -16,8 +16,7 @@
 	throw_range = 15
 	throw_speed = 3
 	desc = "You can use this on airlocks or APCs to try to hack them without cutting wires."
-	m_amt = 50
-	g_amt = 20
+	materials = list(MAT_METAL=50, MAT_GLASS=20)
 	origin_tech = "magnets=1;engineering=1"
 	var/obj/machinery/telecomms/buffer // simple machine buffer for device linkage
 

code/game/objects/items/devices/flashlight.dm

@@ -7,8 +7,7 @@
 	w_class = 2
 	flags = CONDUCT
 	slot_flags = SLOT_BELT
-	m_amt = 50
-	g_amt = 20
+	materials = list(MAT_METAL=50, MAT_GLASS=20)
 	action_button_name = "Flashlight"
 	var/on = 0
 	var/brightness_on = 4 //luminosity when on
@@ -119,8 +118,7 @@
 	brightness_on = 5
 	w_class = 4
 	flags = CONDUCT
-	m_amt = 0
-	g_amt = 0
+	materials = list()
 	on = 1
 
 
@@ -214,6 +212,7 @@ obj/item/device/flashlight/lamp/bananalamp
 	w_class = 1
 	brightness_on = 6
 	light_color = "#FFBF00"
+	materials = list()
 	on = 1 //Bio-luminesence has one setting, on.
 
 /obj/item/device/flashlight/slime/New()

code/game/objects/items/devices/laserpointer.dm

@@ -7,8 +7,7 @@
 	var/pointer_icon_state
 	flags = CONDUCT
 	slot_flags = SLOT_BELT
-	m_amt = 500
-	g_amt = 500
+	materials = list(MAT_METAL=500, MAT_GLASS=500)
 	w_class = 2 //Increased to 2, because diodes are w_class 2. Conservation of matter.
 	origin_tech = "combat=1"
 	origin_tech = "magnets=2"

code/game/objects/items/devices/multitool.dm

@@ -15,8 +15,7 @@
 	throw_range = 15
 	throw_speed = 3
 	desc = "You can use this on airlocks or APCs to try to hack them without cutting wires."
-	m_amt = 50
-	g_amt = 20
+	materials = list(MAT_METAL=50, MAT_GLASS=20)
 	origin_tech = "magnets=1;engineering=1"
 	var/obj/machinery/buffer // simple machine buffer for device linkage
 

code/game/objects/items/devices/powersink.dm

@@ -10,8 +10,7 @@
 	throwforce = 5
 	throw_speed = 1
 	throw_range = 2
-	m_amt = 750
-	w_amt = 750
+	materials = list(MAT_METAL=750)
 	origin_tech = "powerstorage=3;syndicate=5"
 	var/drain_rate = 1500000		// amount of power to drain per tick
 	var/apc_drain_rate = 5000 		// Max. amount drained from single APC. In Watts.

code/game/objects/items/devices/radio/electropack.dm

@@ -7,8 +7,7 @@
 	flags = CONDUCT
 	slot_flags = SLOT_BACK
 	w_class = 5.0
-	g_amt = 2500
-	m_amt = 10000
+	materials = list(MAT_METAL=10000, MAT_GLASS=2500)
 	var/code = 2
 
 /obj/item/device/radio/electropack/attack_hand(mob/user as mob)

code/game/objects/items/devices/radio/headset.dm

@@ -4,7 +4,7 @@
 	var/radio_desc = ""
 	icon_state = "headset"
 	item_state = "headset"
-	m_amt = 75
+	materials = list(MAT_METAL=75)
 	subspace_transmission = 1
 	canhear_range = 0 // can't hear headsets from very far away
 

code/game/objects/items/devices/radio/intercom.dm

@@ -39,7 +39,7 @@
 	add_fingerprint(user)
 	spawn(0)
 		attack_self(user)
-		
+
 /obj/item/device/radio/intercom/attack_ghost(mob/user as mob)
 	spawn(0)
 		attack_self(user)
@@ -160,5 +160,4 @@
 	icon_state = "door_electronics"
 	desc = "Looks like a circuit. Probably is."
 	w_class = 2.0
-	m_amt = 50
-	g_amt = 50
+	materials = list(MAT_METAL=50, MAT_GLASS=50)

code/game/objects/items/devices/radio/radio.dm

@@ -26,8 +26,8 @@
 	throw_range = 9
 	w_class = 2
 
-	m_amt = 75
-	g_amt = 25
+	materials = list(MAT_METAL=75)
+
 	var/const/FREQ_LISTENING = 1
 	var/prison_radio = 0
 	var/atom/follow_target // Custom follow target for autosay-using bots

code/game/objects/items/devices/scanners.dm

@@ -16,7 +16,7 @@ REAGENT SCANNER
 	slot_flags = SLOT_BELT
 	w_class = 2
 	item_state = "electronic"
-	m_amt = 150
+	materials = list(MAT_METAL=150)
 	origin_tech = "magnets=1;engineering=1"
 	var/scan_range = 1
 	var/pulse_duration = 10
@@ -121,7 +121,7 @@ REAGENT SCANNER
 	w_class = 1.0
 	throw_speed = 5
 	throw_range = 10
-	m_amt = 200
+	materials = list(MAT_METAL=200)
 	origin_tech = "magnets=1;biotech=1"
 	var/upgraded = 0
 	var/mode = 1;
@@ -296,8 +296,7 @@ REAGENT SCANNER
 	throwforce = 0
 	throw_speed = 3
 	throw_range = 7
-	m_amt = 30
-	g_amt = 20
+	materials = list(MAT_METAL=30, MAT_GLASS=20)
 	origin_tech = "magnets=1;engineering=1"
 
 /obj/item/device/analyzer/attack_self(mob/user as mob)
@@ -363,8 +362,7 @@ REAGENT SCANNER
 	throwforce = 5
 	throw_speed = 4
 	throw_range = 20
-	m_amt = 30
-	g_amt = 20
+	materials = list(MAT_METAL=30, MAT_GLASS=20)
 	origin_tech = "magnets=2;biotech=2"
 	var/details = 0
 	var/recent_fail = 0
@@ -436,8 +434,7 @@ REAGENT SCANNER
 	throwforce = 5
 	throw_speed = 4
 	throw_range = 20
-	m_amt = 30
-	g_amt = 20
+	materials = list(MAT_METAL=30, MAT_GLASS=20)
 	origin_tech = "magnets=2;biotech=2"
 	var/details = 0
 	var/recent_fail = 0
@@ -493,8 +490,7 @@ REAGENT SCANNER
 	throwforce = 0
 	throw_speed = 3
 	throw_range = 7
-	m_amt = 30
-	g_amt = 20
+	materials = list(MAT_METAL=30, MAT_GLASS=20)
 
 /obj/item/device/slime_scanner/attack(mob/living/M as mob, mob/living/user as mob)
 	if (!isslime(M))

code/game/objects/items/devices/taperecorder.dm

@@ -5,8 +5,7 @@
 	item_state = "analyzer"
 	w_class = 2
 	slot_flags = SLOT_BELT
-	m_amt = 60
-	g_amt = 30
+	materials = list(MAT_METAL=60, MAT_GLASS=30)
 	force = 2
 	throwforce = 0
 	var/recording = 0
@@ -262,8 +261,7 @@
 	icon_state = "tape_white"
 	item_state = "analyzer"
 	w_class = 1
-	m_amt = 20
-	g_amt = 5
+	materials = list(MAT_METAL=20, MAT_GLASS=5)
 	force = 1
 	throwforce = 0
 	var/max_capacity = 600

code/game/objects/items/devices/traitordevices.dm

@@ -85,7 +85,7 @@ effective or pretty fucking useless.
 	w_class = 1.0
 	throw_speed = 5
 	throw_range = 10
-	m_amt = 200
+	materials = list(MAT_METAL=400)
 	origin_tech = "magnets=3;biotech=5;syndicate=3"
 	var/intensity = 5 // how much damage the radiation does
 	var/wavelength = 10 // time it takes for the radiation to kick in, in seconds