Cell.use checks instead of just minuses. Yay for code!

code/game/gamemodes/events/ninja_abilities.dm

@@ -109,7 +109,7 @@ Not sure why this would be useful (it's not) but whatever. Ninjas need their smo
 		playsound(U.loc, 'sound/effects/EMPulse.ogg', 60, 2)
 		empulse(U, 2, 3) //Procs sure are nice. Slightly weaker than wizard's disable tch.
 		s_coold = 2
-		cell.charge-=(C*10)
+		cell.use(C*10)
 	return
 
 //=======//ENERGY BLADE//=======//
@@ -129,7 +129,7 @@ Not sure why this would be useful (it's not) but whatever. Ninjas need their smo
 				spark_system.start()
 				playsound(U.loc, "sparks", 50, 1)
 				U.put_in_hands(W)
-				cell.charge-=(C*10)
+				cell.use(C*10)
 			else
 				U << "\red You can only summon one blade. Try dropping an item first."
 		else//Else you can run around with TWO energy blades. I don't know why you'd want to but cool factor remains.
@@ -173,7 +173,7 @@ This could be a lot better but I'm too tired atm.*/
 			A.current = curloc
 			A.yo = targloc.y - curloc.y
 			A.xo = targloc.x - curloc.x
-			cell.charge-=(C*100)// Ninja stars now cost 100 energy, stil la fair chunk to avoid spamming, will run out of power quickly if used 3 or more times
+			cell.use(C*100)// Ninja stars now cost 100 energy, stil la fair chunk to avoid spamming, will run out of power quickly if used 3 or more times
 			A.process()
 		else
 			U << "\red There are no targets in view."
@@ -210,7 +210,7 @@ Must right click on a mob to activate.*/
 				E.master = U
 				spawn(0)//Parallel processing.
 					E.process(M)
-				cell.charge-=(C*100) // Nets now cost what should be most of a standard battery, since your taking someone out of the round
+				cell.use(C*100) // Nets now cost what should be most of a standard battery, since your taking someone out of the round
 			else
 				U << "They are already trapped inside an energy net."
 		else

code/game/gamemodes/events/ninja_equipment.dm

@@ -520,7 +520,10 @@ ________________________________________________________________________________
 			if(damage>1)//So they don't spam it when energy is a factor.
 				spark_system.start()//SPARKS THERE SHALL BE SPARKS
 				U.electrocute_act(damage, src,0.1,1)//The last argument is a safety for the human proc that checks for gloves.
-				cell.charge -= damage
+				if(cell.charge < damage)
+					cell.use(cell.charge)
+				else
+					cell.use(damage)
 			else
 				A << "\red <b>ERROR</b>: \black Not enough energy remaining."
 

code/game/machinery/floodlight.dm

@@ -21,8 +21,9 @@
 
 /obj/machinery/floodlight/process()
 	if(on)
-		cell.charge -= use
-		if(cell.charge <= 0)
+		if(cell.charge >= use)
+			cell.use(use)
+		else
 			on = 0
 			updateicon()
 			SetLuminosity(0)