fix luacheck warnings

technic/machines/LV/lamp.lua

@@ -7,12 +7,10 @@ local S = technic.getter
 
 
 local illuminate = function(pos, mode)
-	local loc = {}
--- 	loc.x, loc.y, loc.z = pos.x, pos.y, pos.z
 	for y=1,3,1 do
 		for x=-3,3,1 do
 			for z = -3,3,1 do
-				loc = {x = pos.x - x, y = pos.y - y, z = pos.z - z}
+				local loc = {x = pos.x - x, y = pos.y - y, z = pos.z - z}
 				if mode then
 					if minetest.get_node(loc).name == "air" then
 						minetest.swap_node(loc, {name = "technic:dummy_light_source"})
@@ -47,13 +45,12 @@ end
 
 local led_off = function(pos, node)
 	local meta         = minetest.get_meta(pos)
-	local eu_input     = meta:get_int("LV_EU_input")
 	local machine_name = S("%s LED"):format("LV")
 	local machine_node = "technic:lv_led"
 
 	technic.swap_node(pos, machine_node)
 	meta:set_string("infotext", S("%s Unpowered"):format(machine_name))
-	
+
 	meta:set_int("LV_EU_demand", 0)
 end
 
@@ -80,7 +77,6 @@ end
 
 local lamp_off = function(pos, node)
 	local meta         = minetest.get_meta(pos)
-	local eu_input     = meta:get_int("LV_EU_input")
 	local machine_name = S("%s Lamp"):format("LV")
 	local machine_node = "technic:lv_lamp"
 

technic/machines/register/extractor_recipes.lua

@@ -35,7 +35,7 @@ if minetest.get_modpath("dye") then
 	if minetest.get_modpath("hunger") and minetest.get_modpath("ethereal") then
 		table.insert(dye_recipes, {"ethereal:willow_twig 12", "technic:aspirin_pill"})
 	end
-	
+
 	if minetest.get_modpath("farming") then
 		-- Dyes ---
 		-- better recipes for farming's crafting methods (twice the output)
@@ -50,7 +50,7 @@ if minetest.get_modpath("dye") then
 		table.insert(dye_recipes, {"farming:blueberries", "dye:blue 4"})
 		table.insert(dye_recipes, {"farming:raspberries", "dye:red 4"})
 	end
-	
+
 	if minetest.get_modpath("ethereal") then
 		table.insert(dye_recipes, {"ethereal:seaweed", "dye:dark_green 6"})
 		table.insert(dye_recipes, {"ethereal:coral2", "dye:cyan 6"})
@@ -61,7 +61,7 @@ if minetest.get_modpath("dye") then
 		table.insert(dye_recipes, {"ethereal:snowygrass", "dye:grey 4"})
 		table.insert(dye_recipes, {"ethereal:crystalgrass", "dye:blue 4"})
 	end
-	
+
 	if minetest.get_modpath("bakedclay") then
 		table.insert(dye_recipes, {"bakedclay:delphinium", "dye:cyan 8"})
 		table.insert(dye_recipes, {"bakedclay:thistle", "dye:magenta 8"})
@@ -69,12 +69,12 @@ if minetest.get_modpath("dye") then
 		table.insert(dye_recipes, {"bakedclay:mannagrass", "dye:dark_green 8"})
 	end
 
-	
+
 	if minetest.get_modpath("bonemeal") then
 		table.insert(dye_recipes, {"bonemeal:bone", "dye:white 8"})
 		table.insert(dye_recipes, {"bonemeal:bonemeal", "dye:white 4"})
 	end
-	
+
 	for _, data in ipairs(dye_recipes) do
 		technic.register_extractor_recipe({input = {data[1]}, output = data[2]})
 	end

technic/machines/switching_station.lua

@@ -258,12 +258,8 @@ technic.switching_station_run = function(pos)
 
 	local t0 	       = minetest.get_us_time()
 	local meta             = minetest.get_meta(pos)
-	local meta1            = nil
+	local meta1
 	local pos1             = {}
-	local PR_EU            = 0 -- EUs from PR nodes
-	local BA_PR_EU         = 0 -- EUs from BA nodes (discharching)
-	local BA_RE_EU         = 0 -- EUs to BA nodes (charging)
-	local RE_EU            = 0 -- EUs to RE nodes
 
 	local tier      = ""
 	local PR_nodes