Only update the associated network(s) when placing/digging nodes

technic/machines/register/cables.lua

@@ -11,8 +11,19 @@ function technic.get_cable_tier(name)
 	return cable_tier[name]
 end
 
-local function clear_networks()
+local function clear_networks(pos)
-	technic.networks = {}
+	local positions = {
+		{x=pos.x+1, y=pos.y,   z=pos.z},
+		{x=pos.x-1, y=pos.y,   z=pos.z},
+		{x=pos.x,   y=pos.y+1, z=pos.z},
+		{x=pos.x,   y=pos.y-1, z=pos.z},
+		{x=pos.x,   y=pos.y,   z=pos.z+1},
+		{x=pos.x,   y=pos.y,   z=pos.z-1}}
+	for _,connected_pos in pairs(positions) do
+		if technic.cables[minetest.hash_node_position(connected_pos)] then
+			technic.networks[technic.cables[minetest.hash_node_position(connected_pos)]] = nil
+		end
+	end
 end
 
 function technic.register_cable(tier, size)
@@ -55,7 +66,7 @@ end
 local function clear_nets_if_machine(pos, node)
 	for tier, machine_list in pairs(technic.machines) do
 		if machine_list[node.name] ~= nil then
-			return clear_networks()
+			return clear_networks(pos)
 		end
 	end
 end

technic/machines/supply_converter.lua

@@ -59,6 +59,7 @@ minetest.register_node("technic:supply_converter", {
 		meta:set_float("active", false)
 	end,
 	technic_run = run,
+	technic_on_disable = run,
 })
 
 minetest.register_craft({

technic/machines/switching_station.lua

@@ -32,6 +32,7 @@
 --  This way the supplies are separated per network.
 
 technic.networks = {}
+technic.cables = {}
 
 local S = technic.getter
 
@@ -64,7 +65,8 @@ minetest.register_node("technic:switching_station",{
 --------------------------------------------------
 
 -- Add a wire node to the LV/MV/HV network
-local add_new_cable_node = function(nodes, pos)
+local add_new_cable_node = function(nodes, pos, network_id)
+	technic.cables[minetest.hash_node_position(pos)] = network_id
 	-- Ignore if the node has already been added
 	for i = 1, #nodes do
 		if pos.x == nodes[i].x and
@@ -78,31 +80,31 @@ local add_new_cable_node = function(nodes, pos)
 end
 
 -- Generic function to add found connected nodes to the right classification array
-local check_node_subp = function(PR_nodes, RE_nodes, BA_nodes, SP_nodes, all_nodes, pos, machines, tier, sw_pos, from_below)
+local check_node_subp = function(PR_nodes, RE_nodes, BA_nodes, SP_nodes, all_nodes, pos, machines, tier, sw_pos, from_below, network_id)
 	technic.get_or_load_node(pos)
 	local meta = minetest.get_meta(pos)
 	local name = minetest.get_node(pos).name
 
 	if technic.is_tier_cable(name, tier) then
-		add_new_cable_node(all_nodes, pos)
+		add_new_cable_node(all_nodes, pos,network_id)
 	elseif machines[name] then
 		--dprint(name.." is a "..machines[name])
 		if     machines[name] == technic.producer then
-			add_new_cable_node(PR_nodes, pos)
+			add_new_cable_node(PR_nodes, pos, network_id)
 		elseif machines[name] == technic.receiver then
-			add_new_cable_node(RE_nodes, pos)
+			add_new_cable_node(RE_nodes, pos, network_id)
 		elseif machines[name] == technic.producer_receiver then
-			add_new_cable_node(PR_nodes, pos)
+			add_new_cable_node(PR_nodes, pos, network_id)
-			add_new_cable_node(RE_nodes, pos)
+			add_new_cable_node(RE_nodes, pos, network_id)
 		elseif machines[name] == "SPECIAL" and
 				(pos.x ~= sw_pos.x or pos.y ~= sw_pos.y or pos.z ~= sw_pos.z) and
 				from_below then
 			-- Another switching station -> disable it
-			add_new_cable_node(SP_nodes, pos)
+			add_new_cable_node(SP_nodes, pos, network_id)
 			meta:set_int("active", 0)
 			meta:set_string("active_pos", minetest.serialize(sw_pos))
 		elseif machines[name] == technic.battery then
-			add_new_cable_node(BA_nodes, pos)
+			add_new_cable_node(BA_nodes, pos, network_id)
 		end
 
 		meta:set_int(tier.."_EU_timeout", 2) -- Touch node
@@ -110,7 +112,7 @@ local check_node_subp = function(PR_nodes, RE_nodes, BA_nodes, SP_nodes, all_nod
 end
 
 -- Traverse a network given a list of machines and a cable type name
-local traverse_network = function(PR_nodes, RE_nodes, BA_nodes, SP_nodes, all_nodes, i, machines, tier, sw_pos)
+local traverse_network = function(PR_nodes, RE_nodes, BA_nodes, SP_nodes, all_nodes, i, machines, tier, sw_pos, network_id)
 	local pos = all_nodes[i]
 	local positions = {
 		{x=pos.x+1, y=pos.y,   z=pos.z},
@@ -121,7 +123,7 @@ local traverse_network = function(PR_nodes, RE_nodes, BA_nodes, SP_nodes, all_no
 		{x=pos.x,   y=pos.y,   z=pos.z-1}}
 	--print("ON")
 	for i, cur_pos in pairs(positions) do
-		check_node_subp(PR_nodes, RE_nodes, BA_nodes, SP_nodes, all_nodes, cur_pos, machines, tier, sw_pos, i == 3)
+		check_node_subp(PR_nodes, RE_nodes, BA_nodes, SP_nodes, all_nodes, cur_pos, machines, tier, sw_pos, i == 3, network_id)
 	end
 end
 
@@ -153,7 +155,7 @@ local get_network = function(sw_pos, pos1, tier)
 	local all_nodes = {pos1}
 	repeat
 		traverse_network(PR_nodes, RE_nodes, BA_nodes, SP_nodes, all_nodes,
-				i, technic.machines[tier], tier, sw_pos)
+				i, technic.machines[tier], tier, sw_pos, minetest.hash_node_position(pos1))
 		i = i + 1
 	until all_nodes[i] == nil
 	technic.networks[minetest.hash_node_position(pos1)] = {tier = tier, PR_nodes = PR_nodes,