Trigger network master if endpoint is not fully charged

machines/common.lua

@@ -134,6 +134,16 @@ machine.onTimer=function(pos,elapsed,config)
 		shouldRerunTimer,shouldUpdateFormspec=config.onTimer(pos,elapsed,meta,inv)
 	end
 
+	local def=minetest.registered_nodes[minetest.get_node(pos).name]
+	if def.groups and def.groups._industrialtest_hasPowerInput and not industrialtest.api.isFullyCharged(meta) then
+		local networks=industrialtest.api.isAttachedToNetwork(meta)
+		if networks then
+			for _,network in ipairs(networks) do
+				minetest.get_node_timer(network):start(industrialtest.updateDelay)
+			end
+		end
+	end
+
 	if shouldUpdateFormspec then
 		machine.updateFormspec(pos,config)
 	end