Add industrialtest.api.getFlowingCurrent API function

api/network.lua

@@ -271,6 +271,34 @@ function industrialtest.api.getNetwork(meta)
 	return minetest.deserialize(meta:get_string("industrialtest.network"))
 end
 
+-- \brief Returns amount of power that will flow from specified network master
+-- \param pos Vector
+-- \returns number
+function industrialtest.api.getFlowingCurrent(pos)
+	local meta=minetest.get_meta(pos)
+	if not industrialtest.api.hasPowerStorage(meta) or meta:get_int("industrialtest.powerAmount")==0 then
+		return 0
+	end
+	local network=industrialtest.api.getNetwork(meta)
+	if not network then
+		return 0
+	end
+
+	local amount=meta:get_int("industrialtest.powerAmount")
+	if amount==0 then
+		return 0
+	end
+	local demand=0
+	for _,endpoint in ipairs(network) do
+		local endpointMeta=minetest.get_meta(endpoint.position)
+		if industrialtest.api.hasPowerStorage(endpointMeta) then
+			demand=demand+math.min(endpointMeta:get_int("industrialtest.powerCapacity")-endpointMeta:get_int("industrialtest.powerAmount"),endpoint.flow)
+		end
+	end
+
+	return math.min(amount,demand)
+end
+
 -- \brief Returns connections of node with power storage. If direction is "i" only input connections will be returned, if direction is "o" only output connections
 --        will be returned, if it's not provided all connections will be returned.
 -- \param pos Vector