Implement copper cable

api.lua

@@ -109,12 +109,12 @@ industrialtest.api.powerFlow=function(pos)
 	end
 	local neighboursContainingPower=0
 	for key,value in ipairs(neighbours) do
-		local strIndex=(key%2==0 and key-1 or key+1)
-		if industrialtest.api.hasPowerStorage(value) and string.sub(value:get_string("industrialtest.ioConfig"),strIndex,strIndex)=="i" then
+		local side=industrialtest.api.getOppositeSide(key)
+		if industrialtest.api.hasPowerStorage(value) and industrialtest.api.isPowerInput(value,side) then
 			neighboursContainingPower=neighboursContainingPower+1
 		else
-			table.remove(neighbourPositions,key)
-			table.remove(neighbours,key)
+			neighbourPositions[key]=0
+			neighbours[key]=0
 		end
 	end
 	if neighboursContainingPower==0 then
@@ -126,16 +126,23 @@ industrialtest.api.powerFlow=function(pos)
 	local roomAvailable=false
 	local transferred=false
 	for key,value in ipairs(neighbours) do
-		if industrialtest.api.transferPower(meta,value,powerDistribution)>0 then
-			transferred=true
-		end
-		local updateFormspec=minetest.registered_nodes[minetest.get_node(neighbourPositions[key]).name]._industrialtest_updateFormspec
-		if updateFormspec then
-			updateFormspec(value)
-		end
-		minetest.get_node_timer(neighbourPositions[key]):start(industrialtest.updateDelay)
-		if not industrialtest.api.isFullyCharged(value) then
-			roomAvailable=true
+		if industrialtest.api.isPowerOutput(meta,key) and value~=0 then
+			if industrialtest.api.transferPower(meta,value,powerDistribution)>0 then
+				transferred=true
+			end
+			local def=minetest.registered_nodes[minetest.get_node(neighbourPositions[key]).name]
+			local updateFormspec=def._industrialtest_updateFormspec
+			if updateFormspec then
+				updateFormspec(value)
+			end
+			local onPowerFlow=def._industrialtest_onPowerFlow
+			if onPowerFlow and transferred then
+				onPowerFlow(neighbourPositions[key],industrialtest.api.getOppositeSide(key))
+			end
+			minetest.get_node_timer(neighbourPositions[key]):start(industrialtest.updateDelay)
+			if not industrialtest.api.isFullyCharged(value) then
+				roomAvailable=true
+			end
 		end
 	end
 	return roomAvailable,transferred
@@ -151,9 +158,47 @@ industrialtest.api.triggerNeighbours=function(pos)
 	}
 	for key,value in ipairs(neighbourPositions) do
 		local meta=minetest.get_meta(value)
-		local strIndex=(key%2==0 and key-1 or key+1)
-		if industrialtest.api.hasPowerStorage(meta) and string.sub(meta:get_string("industrialtest.ioConfig"),strIndex,strIndex)=="o" then
+		local side=industrialtest.api.getOppositeSide(key)
+		if industrialtest.api.hasPowerStorage(meta) and industrialtest.api.isPowerOutput(meta,side) then
 			minetest.get_node_timer(value):start(industrialtest.updateDelay)
 		end
 	end
 end
+industrialtest.api.getOppositeSide=function(side)
+	return (side%2==0 and side-1 or side+1)
+end
+industrialtest.api.getConnections=function(pos)
+	local result={}
+	local neighbourPositions={
+		vector.offset(pos,-1,0,0),
+		vector.offset(pos,1,0,0),
+		vector.offset(pos,0,-1,0),
+		vector.offset(pos,0,1,0),
+		vector.offset(pos,0,0,-1),
+		vector.offset(pos,0,0,1)
+	}
+	local index=1
+	for key,value in ipairs(neighbourPositions) do
+		local meta=minetest.get_meta(value)
+		if industrialtest.api.hasPowerStorage(meta) then
+			result[index]=key
+			index=index+1
+		end
+	end
+	return result
+end
+industrialtest.api.changeIoConfig=function(meta,side,mode)
+	local ioConfig=meta:get_string("industrialtest.ioConfig")
+	ioConfig=string.sub(ioConfig,1,side-1)..mode..string.sub(ioConfig,side+1)
+	meta:set_string("industrialtest.ioConfig",ioConfig)
+end
+industrialtest.api.isPowerInput=function(meta,side)
+	local ioConfig=meta:get_string("industrialtest.ioConfig")
+	local mode=string.sub(ioConfig,side,side)
+	return (mode=="i" or mode=="a")
+end
+industrialtest.api.isPowerOutput=function(meta,side)
+	local ioConfig=meta:get_string("industrialtest.ioConfig")
+	local mode=string.sub(ioConfig,side,side)
+	return (mode=="o" or mode=="a")
+end

cables.lua

@@ -0,0 +1,54 @@
+-- IndustrialTest
+-- Copyright (C) 2023 mrkubax10
+
+-- This program is free software: you can redistribute it and/or modify
+-- it under the terms of the GNU General Public License as published by
+-- the Free Software Foundation, either version 3 of the License, or
+-- (at your option) any later version.
+
+-- This program is distributed in the hope that it will be useful,
+-- but WITHOUT ANY WARRANTY; without even the implied warranty of
+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+-- GNU General Public License for more details.
+
+-- You should have received a copy of the GNU General Public License
+-- along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+local S=minetest.get_translator("industrialtest")
+
+local definition={
+	description=S("Copper Cable"),
+	tiles={"industrialtest_copper_cable.png"},
+	on_construct=function(pos)
+		local meta=minetest.get_meta(pos)
+		industrialtest.api.addPowerStorage(meta,390,390,"aaaaaa")
+	end,
+	on_timer=function(pos)
+		local meta=minetest.get_meta(pos)
+		local afterFlow,_=industrialtest.api.powerFlow(pos)
+		meta:set_string("industrialtest.ioConfig","aaaaaa")
+		if not industrialtest.api.isFullyCharged(meta) then
+			industrialtest.api.triggerNeighbours(pos)
+		end
+		return (afterFlow and meta:get_int("industrialtest.api.powerAmount")>0)
+	end,
+	_industrialtest_hasPowerInput=true,
+	_industrialtest_onPowerFlow=function(pos,side)
+		local meta=minetest.get_meta(pos)
+		industrialtest.api.changeIoConfig(meta,side,"i")
+		minetest.get_node_timer(pos):start(industrialtest.updateDelay)
+	end
+}
+if industrialtest.mtgAvailable then
+	definition.groups={
+		cracky=1,
+		level=1,
+		oddly_breakable_by_hand=1
+	}
+	definition.sound=default.node_sound_metal_defaults()
+elseif industrialtest.mclAvailable then
+	definition.groups={pickaxey=1}
+	definition._mcl_blast_resistance=1
+	definition._mcl_hardness=0.5
+end
+minetest.register_node("industrialtest:copper_cable",definition)

init.lua

@@ -34,3 +34,4 @@ dofile(modpath.."/nodes.lua")
 if industrialtest.developerMode then
 	dofile(modpath.."/utils.lua")
 end
+dofile(modpath.."/cables.lua")

nodes.lua

@@ -43,20 +43,6 @@ minetest.register_craft({
 minetest.register_on_placenode(function(pos,newNode)
 	local def=minetest.registered_nodes[newNode.name]
 	if def and def._industrialtest_hasPowerInput then
-		local neighbourPositions={
-			vector.offset(pos,-1,0,0),
-			vector.offset(pos,1,0,0),
-			vector.offset(pos,0,-1,0),
-			vector.offset(pos,0,1,0),
-			vector.offset(pos,0,0,-1),
-			vector.offset(pos,0,0,1)
-		}
-		for key,value in ipairs(neighbourPositions) do
-			local meta=minetest.get_meta(value)
-			local strIndex=(key%2==0 and key-1 or key+1)
-			if industrialtest.api.hasPowerStorage(meta) and string.sub(meta:get_string("industrialtest.ioConfig"),strIndex,strIndex)=="o" then
-				minetest.get_node_timer(value):start(1.0)
-			end
-		end
+		industrialtest.api.triggerNeighbours(pos)
 	end
 end)

utils.lua

@@ -36,8 +36,16 @@ local function inspectNode(pos,playerName)
 		"field[0.5,5.4;2,0.5;powerAmount;"..S("Power Amount")..";"..powerAmount.."]",
 		"field[0.5,6.2;2,0.5;powerIOConfig;"..S("Power IO Config")..";"..powerIOConfig.."]",
 		"button[0.5,6.8;2,0.5;update;"..S("Update").."]",
-		"button[4.2,1.25;2.8,0.5;triggerNeighbours;"..S("Trigger Neighbours").."]"
+		"button[4.2,1.25;2.8,0.5;triggerNeighbours;"..S("Trigger Neighbours").."]",
+		"label[4.2,2.25;"..S("Connections:").."]"
 	}
+	local connections=industrialtest.api.getConnections(pos)
+	local sides={"X-","X+","Y-","Y+","Z-","Z+"}
+	local sideString=""
+	for _,value in ipairs(connections) do
+		sideString=sideString..sides[value].."  "
+	end
+	table.insert(formspec,"label[4.2,2.65;"..sideString.."]")
 	powerStorageInspectorContext[playerName]=pos
 	minetest.show_formspec(playerName,"industrialtest:power_storage_inspector_formspec",table.concat(formspec,""))
 end