Refactor jetpacks

tools/batpack.lua

@@ -20,7 +20,14 @@ industrialtest.internal.unpackTableInto(industrialtest.BatPackBase,{
 	part="torso"
 })
 
-function industrialtest.BatPackBase.update(self,player,itemstack)
+local updateDelta=0
+function industrialtest.BatPackBase.update(self,player,itemstack,dtime)
+	updateDelta=updateDelta+dtime
+	if updateDelta<industrialtest.updateDelay then
+		return false
+	end
+	updateDelta=0
+
 	local wielded=player:get_wielded_item()
 	local wieldedMeta=wielded:get_meta()
 	if not industrialtest.api.hasPowerStorage(wieldedMeta) or wieldedMeta:get_int("industrialtest.powerFlow")>self.flow then