Localize some mesecons stuff

mods/mesecons/mesecons/actionqueue.lua

@@ -44,7 +44,8 @@ end
 -- However, even that does not work in some cases, that's why we delay the time the globalsteps
 -- start to be execute by 5 seconds
 local get_highest_priority = function (actions)
-	local highestp = -1, highesti
+	local highesti
+	local highestp = -1
 	for i, ac in ipairs(actions) do
 		if ac.priority > highestp then
 			highestp = ac.priority

mods/mesecons/mesecons/internal.lua

@@ -204,8 +204,8 @@ end
 
 -- Deactivation
 mesecon.queue:add_function("deactivate", function (pos, rulename)
-	node = minetest.get_node(pos)
-	effector = mesecon:get_effector(node.name)
+	local node = minetest.get_node(pos)
+	local effector = mesecon:get_effector(node.name)
 
 	if effector and effector.action_off then
 		effector.action_off(pos, node, rulename)
@@ -225,8 +225,8 @@ end
 
 -- Change
 mesecon.queue:add_function("change", function (pos, rulename, changetype)
-	node = minetest.get_node(pos)
-	effector = mesecon:get_effector(node.name)
+	local node = minetest.get_node(pos)
+	local effector = mesecon:get_effector(node.name)
 
 	if effector and effector.action_change then
 		effector.action_change(pos, node, rulename, changetype)

mods/mesecons/mesecons/wires.lua

@@ -211,6 +211,7 @@ function mesecon:update_autoconnect(pos, secondcall, replace_old)
 	local nodename = minetest.get_node(pos).name
 	if string.find(nodename, "mesecons:wire_") == nil and not replace_old then return nil end
 
+	local xp, xm, zp, zm, xpy, zpy, zmy, xmy
 	if mesecon:rules_link_anydir(pos, xppos) then xp = 1 else xp = 0 end
 	if mesecon:rules_link_anydir(pos, xmpos) then xm = 1 else xm = 0 end
 	if mesecon:rules_link_anydir(pos, zppos) then zp = 1 else zp = 0 end

mods/mesecons/mesecons_receiver/init.lua

@@ -149,13 +149,14 @@ end)
 
 minetest.register_on_placenode(function (pos, node)
 	if string.find(node.name, "mesecons:wire_") ~=nil then
-		rules = mesecon:get_rules("receiver_pos_all")
+		local rules = mesecon:get_rules("receiver_pos_all")
 		local i = 1
 		while rules[i] ~= nil do
-			np = {
-			x = pos.x + rules[i].x,
-			y = pos.y + rules[i].y,
-			z = pos.z + rules[i].z}
+			local np = {
+				x = pos.x + rules[i].x,
+				y = pos.y + rules[i].y,
+				z = pos.z + rules[i].z
+			}
 			if minetest.get_item_group(minetest.get_node(np).name, "mesecon_needs_receiver") == 1 then
 				mesecon:receiver_place(np)
 			end