more tweaks and fixes

Signed-off-by: caelaislinn <cael_aislinn@yahoo.com.au>

code/modules/research/artifact_synthetic.dm

@@ -38,7 +38,9 @@
 /obj/item/weapon/anodevice/proc/interact(var/mob/user)
 	user.machine = src
 	var/dat = "<b>Anomalous Materials Energy Utiliser</b><br>"
-	if(cooldown)
+	if(activated)
+		dat += "Device active, stand by.<BR>"
+	else if(cooldown)
 		dat += "Cooldown in progress, please wait.<BR>"
 	else
 		if(!inserted_battery)
@@ -86,16 +88,16 @@
 
 /obj/item/weapon/anodevice/proc/pulse()
 	if(activated)
-		time -= 10
-		stored_charge -= 10 + rand(-1,1)
-		cooldown += 10
-		if(time <= 0)
+		if(time <= 0 || !inserted_battery)
 			time = 0
 			activated = 0
 			var/turf/T = get_turf(src)
 			T.visible_message("\icon[src]\blue The utiliser device buzzes.", "\icon[src]\blue You hear something buzz.")
 		else
 			inserted_battery.battery_effect.DoEffect(src)
+		time -= 10
+		inserted_battery.stored_charge -= 10 + rand(-1,1)
+		cooldown += 10
 	else if(cooldown > 0)
 		cooldown -= 10
 		if(cooldown <= 0)