Updated:

Singularity Engine
-Recoded some parts, still works mostly the same
Welders
-Recoded, it works mostly the same but is easier to use in code
-Cyborgs have a larger fuel tank
-Brought most if not all of the areas that use welders upto spec
Moved the changeling chem recharge code into the human life proc
New players who log out before spawning in are now deleted
New minor Common event
Machines around the station use more power, system might need some changes later
Likely few other minor changes that I just cant think of atm

git-svn-id: http://tgstation13.googlecode.com/svn/trunk@945 316c924e-a436-60f5-8080-3fe189b3f50e

code/ATMOSPHERICS/components/binary_devices/pump.dm

@@ -46,7 +46,6 @@ obj/machinery/atmospherics/binary/pump
 			return
 		if(!on)
 			return 0
-		use_power(5)
 
 		var/output_starting_pressure = air2.return_pressure()
 
@@ -69,7 +68,6 @@ obj/machinery/atmospherics/binary/pump
 			if(network2)
 				network2.update = 1
 
-			use_power(round(air2.volume/12))
 		return 1
 
 	//Radio remote control

code/ATMOSPHERICS/components/unary/vent_pump.dm

@@ -6,7 +6,6 @@
 	desc = "Has a valve and pump attached to it"
 
 	level = 1
-	var/channel = ENVIRON
 	var/area_uid
 	var/id = null
 
@@ -42,7 +41,6 @@
 		name = "Large Air Vent"
 		New()
 			..()
-			channel = EQUIP
 			air_contents.volume = 1000
 
 	update_icon()
@@ -66,7 +64,6 @@
 		if(!on)
 			return 0
 
-		use_power(5, channel)
 		if(welded)
 			return 0
 
@@ -87,7 +84,6 @@
 
 					var/datum/gas_mixture/removed = air_contents.remove(transfer_moles)
 
-					use_power(round(air_contents.volume/12), channel)
 					loc.assume_air(removed)
 
 					if(network)
@@ -108,8 +104,6 @@
 					if (isnull(removed)) //in space
 						return
 
-
-					use_power(round(air_contents.volume/12), channel)
 					air_contents.merge(removed)
 
 					if(network)
@@ -151,7 +145,7 @@
 
 	initialize()
 		..()
-		
+
 		//some vents work his own spesial way
 		radio_filter_in = frequency==initial(frequency)?(RADIO_FROM_AIRALARM):null
 		radio_filter_out = frequency==initial(frequency)?(RADIO_TO_AIRALARM):null
@@ -228,22 +222,21 @@
 			on = 0
 		return
 
-	attackby(obj/item/W, mob/user)			// Added for aliens -- TLE
-		// Stolen from the Emitter welding code of the Singularity
-		if(istype(W, /obj/item/weapon/weldingtool) && W:welding)
-			if (W:get_fuel() < 1)
+	attackby(obj/item/W, mob/user)
+		if(istype(W, /obj/item/weapon/weldingtool))
+			if (W:remove_fuel(2,user))
+				user << "\blue Now welding the vent."
+				if(do_after(user, 20))
+					playsound(src.loc, 'Welder2.ogg', 50, 1)
+					if(!welded)
+						user.visible_message("[user] welds the vent shut.", "You weld the vent shut.", "You hear welding.")
+						welded = 1
+					else
+						user.visible_message("[user] unwelds the vent.", "You unweld the vent.", "You hear welding.")
+						welded = 0
+			else
 				user << "\blue You need more welding fuel to complete this task."
 				return 1
-			W:use_fuel(1)
-			playsound(src.loc, 'Welder2.ogg', 50, 1)
-
-			if(!welded)
-				user.visible_message("[user] welds the vent shut.", "You weld the vent shut.", "You hear welding.")
-				welded = 1
-			else
-				user.visible_message("[user] unwelds the vent.", "You unweld the vent.", "You hear welding.")
-				welded = 0
-
 	examine()
 		set src in oview(1)
 		..()
@@ -251,10 +244,10 @@
 			usr << "It seems welded shut."
 
 	power_change()
-		if(powered(channel))
-			stat &= ~NOPOWER
-		else
-			stat |= NOPOWER
+//		if(powered(EVNIRON))
+//			stat &= ~NOPOWER
+//		else
+//			stat |= NOPOWER
 		update_icon()
 
 	attackby(var/obj/item/weapon/W as obj, var/mob/user as mob)

code/ATMOSPHERICS/components/unary/vent_scrubber.dm

@@ -97,8 +97,7 @@
 				var/datum/gas_mixture/removed = loc.remove_air(transfer_moles)
 				if (isnull(removed)) //in space
 					return
-				var/power = (scrub_Toxins+scrub_CO2+scrub_N2O)*volume_rate/12
-				use_power(round(power+5), ENVIRON)
+
 				//Filter it
 				var/datum/gas_mixture/filtered_out = new
 				filtered_out.temperature = removed.temperature
@@ -130,7 +129,7 @@
 		else //Just siphoning all air
 			if (air_contents.return_pressure()>=50*ONE_ATMOSPHERE)
 				return
-			use_power(round(volume_rate/12)+5, ENVIRON)
+
 			var/transfer_moles = environment.total_moles()*(volume_rate/environment.volume)
 
 			var/datum/gas_mixture/removed = loc.remove_air(transfer_moles)