fix many codestyle errors

.luacheckrc

@@ -1,6 +1,7 @@
 unused_args = false
 allow_defined_top = true
 max_line_length = false
+redefined = false
 
 globals = {
     "minetest", "core",
@@ -11,7 +12,7 @@ read_globals = {
 	"dump", "dump2",
 	"vector",
 	"VoxelManip", "VoxelArea",
-	"PseudoRandom", "PcgRandom",
+	"PseudoRandom", "PcgRandom", "PerlinNoise",
 	"ItemStack",
 	"Settings",
 	"unpack",

mods/MAPGEN/mcl_villages/const.lua

@@ -78,4 +78,4 @@ max_height_difference = 56
 --
 --
 half_map_chunk_size = 40
-quarter_map_chunk_size = 20
+--quarter_map_chunk_size = 20

mods/MAPGEN/tsm_railcorridors/init.lua

@@ -823,7 +823,7 @@ local function create_corridor_line(waypoint, axis, sign, length, wood, post, da
 	local s = sign
 	local ud = false -- Up or down
 	local udn = false -- Up or down is next
-	local udp = false -- Up or down was previous
+	local udp -- Up or down was previous
 	local up = false -- true if going up
 	local upp = false -- true if was going up previously
 	for i=1,length do

mods/MISC/findbiome/init.lua

@@ -119,7 +119,7 @@ local function find_biome(pos, biomes)
 	local edge_dist = 0
 	local dir_step = 0
 	local dir_ind = 1
-	local success = false
+	local success
 	local spawn_pos
 	local biome_ids
 
@@ -166,7 +166,7 @@ local function find_biome(pos, biomes)
 							spawn_pos = {x = spos.x, y = spos.y, z = spos.z}
 						end
 						if spawn_pos then
-							local adjusted_pos, outside = adjust_pos_to_biome_limits(spawn_pos, biome_id)
+							local _,outside = adjust_pos_to_biome_limits(spawn_pos, biome_id)
 							if is_in_world(spawn_pos) and not outside then
 								return true
 							end

mods/PLAYER/mcl_playerplus/init.lua

@@ -22,7 +22,6 @@ local math = math
 -- Internal player state
 local mcl_playerplus_internal = {}
 
-local def = {}
 local time = 0
 local look_pitch = 0
 
@@ -376,9 +375,6 @@ minetest.register_globalstep(function(dtime)
 			return
 		end
 
-		-- set defaults
-		def.speed = 1
-
 		-- Standing on soul sand? If so, walk slower (unless player wears Soul Speed boots)
 		if node_stand == "mcl_nether:soul_sand" then
 			-- TODO: Tweak walk speed

mods/PLAYER/mcl_spawn/init.lua

@@ -500,10 +500,8 @@ function mcl_spawn.shadow_worker()
 
 	if success then
 		local wsp_node = minetest.get_node(wsp)
-		if wsp_node and wsp_node.name == "ignore" then
-			-- special case - respawn area unloaded from memory - it's okay, skip for now
-
-		elseif ((not good_for_respawn(wsp)) or ((no_trees_area_counter >= 0) and not can_find_tree(wsp))) then
+		if not (wsp_node and wsp_node.name == "ignore")
+		and ((not good_for_respawn(wsp)) or ((no_trees_area_counter >= 0) and not can_find_tree(wsp))) then
 			success = false
 			minetest.log("action", "[mcl_spawn] World spawn position isn't safe anymore: "..minetest.pos_to_string(wsp))
 			mcl_spawn.search()