various cleanups

.luacheckrc

@@ -1,7 +1,6 @@
 std = "min+minetest"
 
 unused_args = false
-max_line_length = 180
 
 globals = {
 	"scifi_nodes"

chest.lua

@@ -14,7 +14,7 @@ local chest_formspec =
 
 -- Helper functions
 local function drop_chest_stuff()
-	return function(pos, oldnode, oldmetadata, digger)
+	return function(pos, _, oldmetadata)
 		local meta = minetest.get_meta(pos)
 		meta:from_table(oldmetadata)
 		local inv = meta:get_inventory()

common.lua

@@ -1,7 +1,5 @@
 
-
-scifi_nodes.get_switch_rules = function(param2)
-
+function scifi_nodes.get_switch_rules(param2)
 	-- param2 = 2
 	local rules = {
 		{x=1, y=-1, z=-1},

digicode.lua

@@ -11,7 +11,7 @@ local digicode_context = {}
 
 -- after_place_node, use by digicode and palm_scanner
 -- placer is a player object
-local function set_owner(pos, placer, itemstack, pointed_thing)
+local function set_owner(pos, placer)
 	local meta = minetest.get_meta(pos)
 	meta:set_string("owner", placer:get_player_name())
 	meta:set_string("code", secret_code)
@@ -48,7 +48,7 @@ local function update_code(pos, code)
 	meta:set_string("code", code)
 end
 
-local function show_digicode_formspec(pos, node, player, itemstack, pointed_thing)
+local function show_digicode_formspec(pos, _, player)
 	local meta = minetest.get_meta(pos)
 	local owner = meta:get_string("owner")
 	local current_code = meta:get_string("code")

doors.lua

@@ -120,7 +120,7 @@ for _, current_door in ipairs(doors) do
 		return itemstack;
 	end
 
-	local function afterdestruct(pos, oldnode)
+	local function afterdestruct(pos)
 		minetest.set_node({x=pos.x,y=pos.y+1,z=pos.z},{name="air"})
 	end
 
@@ -173,12 +173,12 @@ for _, current_door in ipairs(doors) do
 		timer:start(3)
 	end
 
-	local function afterplace(pos, placer, itemstack, pointed_thing)
+	local function afterplace(pos)
 		local node = minetest.get_node(pos)
 		minetest.set_node({x=pos.x,y=pos.y+1,z=pos.z},{name=opened_top,param2=node.param2})
 	end
 
-	local function ontimer(pos, elapsed)
+	local function ontimer(pos)
 		-- play sound
 		minetest.sound_play(sound,{
 			max_hear_distance = 16,
@@ -218,7 +218,7 @@ for _, current_door in ipairs(doors) do
 		},
 	}
 
-	local function nodig(pos, digger)
+	local function nodig()
 		return false
 	end