Merge branch 'master' of https://git.minetest.land/MineClone2/MineClone2

CONTRIBUTING.md

@@ -1,5 +1,5 @@
 # Contributing to MineClone 2
-So you want to MineClone 2?
+So you want to contribute to MineClone 2?
 Wow, thank you! :-)
 
 But first, some things to note:
@@ -46,6 +46,28 @@ Your commit names should be relatively descriptive, e.g. when saying "Fix #issue
 
 Contributors will be credited in `CREDITS.md`.
 
+## Code Style
+
+Each mod must provide `mod.conf`.
+Each mod which add API functions should store functions inside a global table named like the mod.
+Public functions should not use self references but rather just access the table directly.
+Functions should be defined in this way:
+```
+function mcl_xyz.stuff(param) end
+```
+Insteed of this way:
+```
+mcl_xyz.stuff = function(param) end
+```
+Indentation must be unified, more likely with tabs.
+
+Time sensitive mods should make a local copy of most used API functions to improve performances.
+```
+local vector = vector
+local get_node = minetest.get_node
+```
+
+
 ## Features > 1.12
 
 If you want to make a feature that was added in a Minecraft version later than 1.12, you should fork MineClone5 (mineclone5 branch in the repository) and add your changes to this.

mods/CORE/_mcl_autogroup/init.lua

@@ -298,7 +298,7 @@ function mcl_autogroup.get_wear(toolname, diggroup)
 	return math.ceil(65535 / uses)
 end
 
-local overwrite = function()
+local function overwrite()
 	for nname, ndef in pairs(minetest.registered_nodes) do
 		local newgroups = table.copy(ndef.groups)
 		if (nname ~= "ignore" and ndef.diggable) then

mods/CORE/mcl_attached/init.lua

@@ -1,17 +1,21 @@
+local vector = vector
+
+local facedir_to_dir = minetest.facedir_to_dir
+local get_item_group = minetest.get_item_group
+local remove_node = minetest.remove_node
+local get_node = minetest.get_node
+
 local original_function = minetest.check_single_for_falling
 
-minetest.check_single_for_falling = function(pos)
+function minetest.check_single_for_falling(pos)
 	local ret_o = original_function(pos)
-
 	local ret = false
 	local node = minetest.get_node(pos)
-	if minetest.get_item_group(node.name, "attached_node_facedir") ~= 0 then
-		local dir = minetest.facedir_to_dir(node.param2)
+	if get_item_group(node.name, "attached_node_facedir") ~= 0 then
+		local dir = facedir_to_dir(node.param2)
 		if dir then
-			local cpos = vector.add(pos, dir)
-			local cnode = minetest.get_node(cpos)
-			if minetest.get_item_group(cnode.name, "solid") == 0 then
-				minetest.remove_node(pos)
+			if get_item_group(get_node(vector.add(pos, dir)).name, "solid") == 0 then
+				remove_node(pos)
 				local drops = minetest.get_node_drops(node.name, "")
 				for dr=1, #drops do
 					minetest.add_item(pos, drops[dr])
@@ -20,7 +24,6 @@ minetest.check_single_for_falling = function(pos)
 			end
 		end
 	end
-
 	return ret_o or ret
 end
 

mods/CORE/mcl_util/init.lua

@@ -150,7 +150,7 @@ function mcl_util.get_eligible_transfer_item_slot(src_inventory, src_list, dst_i
 end
 
 -- Returns true if itemstack is a shulker box
-local is_not_shulker_box = function(itemstack)
+local function is_not_shulker_box(itemstack)
 	local g = minetest.get_item_group(itemstack:get_name(), "shulker_box")
 	return g == 0 or g == nil
 end
@@ -212,7 +212,7 @@ function mcl_util.move_item_container(source_pos, destination_pos, source_list,
 	end
 
 	-- Normalize double container by forcing to always use the left segment first
-	local normalize_double_container = function(pos, node, ctype)
+	local function normalize_double_container(pos, node, ctype)
 		if ctype == 6 then
 			pos = mcl_util.get_double_container_neighbor_pos(pos, node.param2, "right")
 			if not pos then

mods/ENTITIES/mcl_item_entity/init.lua

@@ -38,7 +38,7 @@ item_drop_settings.drop_single_item      = false --if true, the drop control dro
 
 item_drop_settings.magnet_time           = 0.75 -- how many seconds an item follows the player before giving up
 
-local get_gravity = function()
+local function get_gravity()
 	return tonumber(minetest.settings:get("movement_gravity")) or 9.81
 end
 
@@ -60,7 +60,7 @@ mcl_item_entity.register_pickup_achievement("mcl_mobitems:blaze_rod", "mcl:blaze
 mcl_item_entity.register_pickup_achievement("mcl_mobitems:leather", "mcl:killCow")
 mcl_item_entity.register_pickup_achievement("mcl_core:diamond", "mcl:diamonds")
 
-local check_pickup_achievements = function(object, player)
+local function check_pickup_achievements(object, player)
 	if has_awards then
 		local itemname = ItemStack(object:get_luaentity().itemstring):get_name()
 		local playername = player:get_player_name()
@@ -72,7 +72,7 @@ local check_pickup_achievements = function(object, player)
 	end
 end
 
-local enable_physics = function(object, luaentity, ignore_check)
+local function enable_physics(object, luaentity, ignore_check)
 	if luaentity.physical_state == false or ignore_check == true then
 		luaentity.physical_state = true
 		object:set_properties({
@@ -83,7 +83,7 @@ local enable_physics = function(object, luaentity, ignore_check)
 	end
 end
 
-local disable_physics = function(object, luaentity, ignore_check, reset_movement)
+local function disable_physics(object, luaentity, ignore_check, reset_movement)
 	if luaentity.physical_state == true or ignore_check == true then
 		luaentity.physical_state = false
 		object:set_properties({
@@ -98,13 +98,11 @@ end
 
 
 minetest.register_globalstep(function(dtime)
-
 	tick = not tick
 
 	for _,player in pairs(minetest.get_connected_players()) do
 		if player:get_hp() > 0 or not minetest.settings:get_bool("enable_damage") then
 
-
 			local name = player:get_player_name()
 
 			local pos = player:get_pos()

mods/ENTITIES/mcl_minecarts/init.lua

@@ -496,7 +496,7 @@ local function register_entity(entity_id, mesh, textures, drop, on_rightclick, o
 end
 
 -- Place a minecart at pointed_thing
-mcl_minecarts.place_minecart = function(itemstack, pointed_thing, placer)
+function mcl_minecarts.place_minecart(itemstack, pointed_thing, placer)
 	if not pointed_thing.type == "node" then
 		return
 	end
@@ -540,7 +540,7 @@ mcl_minecarts.place_minecart = function(itemstack, pointed_thing, placer)
 end
 
 
-local register_craftitem = function(itemstring, entity_id, description, tt_help, longdesc, usagehelp, icon, creative)
+local function register_craftitem(itemstring, entity_id, description, tt_help, longdesc, usagehelp, icon, creative)
 	entity_mapping[itemstring] = entity_id
 
 	local groups = { minecart = 1, transport = 1 }

mods/ENTITIES/mcl_minecarts/rails.lua

@@ -1,7 +1,7 @@
 local S = minetest.get_translator("mcl_minecarts")
 
 -- Template rail function
-local register_rail = function(itemstring, tiles, def_extras, creative)
+local function register_rail(itemstring, tiles, def_extras, creative)
 	local groups = {handy=1,pickaxey=1, attached_node=1,rail=1,connect_to_raillike=minetest.raillike_group("rail"),dig_by_water=1,destroy_by_lava_flow=1, transport=1}
 	if creative == false then
 		groups.not_in_creative_inventory = 1

mods/ENTITIES/mcl_mobs/api/mob_functions/ai.lua

@@ -13,9 +13,8 @@ local minetest_get_node_light               = minetest.get_node_light
 local DOUBLE_PI = math.pi * 2
 local THIRTY_SECONDTH_PI = DOUBLE_PI * 0.03125
 
-
 --a simple helper function which is too small to move into movement.lua
-local quick_rotate = function(self,dtime)
+local function quick_rotate(self,dtime)
 	self.yaw = self.yaw + THIRTY_SECONDTH_PI
 	if self.yaw > DOUBLE_PI then
 		self.yaw = self.yaw - DOUBLE_PI
@@ -39,7 +38,7 @@ end
 ]]--
 
 --this is basically reverse jump_check
-local cliff_check = function(self,dtime)
+local function cliff_check(self,dtime)
 	--mobs will flip out if they are falling without this
 	if self.object:get_velocity().y ~= 0 then
 		return false
@@ -115,7 +114,7 @@ local function land_state_switch(self, dtime)
 end
 
 -- states are executed here
-local land_state_execution = function(self,dtime)
+local function land_state_execution(self, dtime)
 
 	--[[ -- this is a debug which shows the timer and makes mobs breed 100 times faster
 	print(self.breed_timer)
@@ -391,7 +390,7 @@ end
 -- state switching logic (stand, walk, run, attacks)
 local swim_state_list_wandering = {"stand", "swim"}
 
-local swim_state_switch = function(self, dtime)
+local function swim_state_switch(self, dtime)
 	self.state_timer = self.state_timer - dtime
 	if self.state_timer <= 0 then
 		self.state_timer = math.random(4,10) + math.random()
@@ -401,7 +400,7 @@ end
 
 
 --check if a mob needs to turn while swimming
-local swim_turn_check = function(self,dtime)
+local function swim_turn_check(self,dtime)
 
 	local pos = self.object:get_pos()
 	pos.y = pos.y + 0.1
@@ -416,12 +415,11 @@ local swim_turn_check = function(self,dtime)
 
 	local green_flag_1 = minetest_get_item_group(minetest_get_node(test_dir).name, "solid") ~= 0
 
-	return(green_flag_1)
+	return green_flag_1
 end
 
 --this is to swap the built in engine acceleration modifier
-local swim_physics_swapper = function(self,inside_swim_node)
-
+local function swim_physics_swapper(self, inside_swim_node)
 	--should be swimming, gravity is applied, switch to floating
 	if inside_swim_node and self.object:get_acceleration().y ~= 0 then
 		self.object:set_acceleration(vector.new(0,0,0))
@@ -435,7 +433,7 @@ end
 
 local random_pitch_multiplier = {-1,1}
 -- states are executed here
-local swim_state_execution = function(self,dtime)
+local function swim_state_execution(self, dtime)
 
 	local pos = self.object:get_pos()
 
@@ -530,7 +528,7 @@ ______ _
 -- state switching logic (stand, walk, run, attacks)
 local fly_state_list_wandering = {"stand", "fly"}
 
-local fly_state_switch = function(self, dtime)
+local function fly_state_switch(self, dtime)
 
 	if self.hostile and self.attacking then
 		self.state = "attack"
@@ -546,7 +544,7 @@ end
 
 
 --check if a mob needs to turn while flying
-local fly_turn_check = function(self,dtime)
+local function fly_turn_check(self, dtime)
 
 	local pos = self.object:get_pos()
 	pos.y = pos.y + 0.1
@@ -561,11 +559,11 @@ local fly_turn_check = function(self,dtime)
 
 	local green_flag_1 = minetest_get_item_group(minetest_get_node(test_dir).name, "solid") ~= 0
 
-	return(green_flag_1)
+	return green_flag_1
 end
 
 --this is to swap the built in engine acceleration modifier
-local fly_physics_swapper = function(self,inside_fly_node)
+local function fly_physics_swapper(self, inside_fly_node)
 
 	--should be flyming, gravity is applied, switch to floating
 	if inside_fly_node and self.object:get_acceleration().y ~= 0 then
@@ -580,7 +578,7 @@ end
 
 local random_pitch_multiplier = {-1,1}
 -- states are executed here
-local fly_state_execution = function(self,dtime)
+local function fly_state_execution(self, dtime)
 	local pos = self.object:get_pos()
 	pos.y = pos.y + 0.1
 	local current_node = minetest_get_node(pos).name
@@ -794,7 +792,7 @@ ___  ___      _         _                 _
 ]]--
 
 --the main loop
-mobs.mob_step = function(self, dtime)
+function mobs.mob_step(self, dtime)
 
 	--do not continue if non-existent
 	if not self or not self.object or not self.object:get_luaentity() then

mods/ENTITIES/mcl_mobs/api/mob_functions/animation.lua

@@ -157,7 +157,7 @@ local calculate_pitch = function(self)
 		return false
 	end
 
-    return(minetest_dir_to_yaw(vector_new(vector_distance(vector_new(pos.x,0,pos.z),vector_new(pos2.x,0,pos2.z)),0,pos.y - pos2.y)) + HALF_PI)
+    return minetest_dir_to_yaw(vector_new(vector_distance(vector_new(pos.x,0,pos.z),vector_new(pos2.x,0,pos2.z)),0,pos.y - pos2.y)) + HALF_PI
 end
 
 --this is a helper function used to make mobs pitch rotation dynamically flow when flying/swimming

mods/ENTITIES/mcl_mobs/api/mob_functions/breeding.lua

@@ -140,9 +140,7 @@ mobs.look_for_mate = function(self)
 			winner_mate = mate
 		end
 	end
-
-	return(winner_mate)
-
+	return winner_mate
 end
 
 --make the baby grow up

mods/ENTITIES/mcl_mobs/api/mob_functions/environment.lua

@@ -76,8 +76,7 @@ mobs.detect_closest_player_within_radius = function(self, line_of_sight, radius,
 			winner_player = player
 		end
 	end
-
-	return(winner_player)
+	return winner_player
 end
 
 
@@ -104,14 +103,13 @@ mobs.jump_check = function(self,dtime)
 
     if green_flag_1 and green_flag_2 then
 		--can jump over node
-        return(1)
+        return 1
 	elseif green_flag_1 and not green_flag_2 then
 		--wall in front of mob
-		return(2)
+		return 2
     end
-
 	--nothing to jump over
-	return(0)
+	return 0
 end
 
 -- a helper function to quickly turn neutral passive mobs hostile
@@ -223,12 +221,12 @@ mobs.check_for_player_within_area = function(self, radius)
 			local distance = vector_distance(pos1,pos2)
 			if distance < radius then
 				--found a player
-				return(true)
+				return true
 			end
 		end
 	end
 	--did not find a player
-	return(false)
+	return false
 end
 
 
@@ -236,7 +234,7 @@ end
 mobs.get_2d_distance = function(pos1,pos2)
 	pos1.y = 0
 	pos2.y = 0
-	return(vector_distance(pos1, pos2))
+	return vector_distance(pos1, pos2)
 end
 
 -- fall damage onto solid ground

mods/ENTITIES/mcl_mobs/api/mob_functions/head_logic.lua

@@ -3,7 +3,7 @@ local vector = vector
 
 --converts yaw to degrees
 local degrees = function(yaw)
-	return(yaw*180.0/math.pi)
+	return yaw*180.0/math.pi
 end
 
 mobs.do_head_logic = function(self,dtime)

mods/ENTITIES/mcl_mobs/api/mob_functions/movement.lua

@@ -312,7 +312,7 @@ mobs.calculate_pitch = function(pos1, pos2)
 		return false
 	end
 
-    return(minetest_dir_to_yaw(vector.new(vector.distance(vector.new(pos1.x,0,pos1.z),vector.new(pos2.x,0,pos2.z)),0,pos1.y - pos2.y)) + HALF_PI)
+    return minetest_dir_to_yaw(vector.new(vector.distance(vector.new(pos1.x,0,pos1.z),vector.new(pos2.x,0,pos2.z)),0,pos1.y - pos2.y)) + HALF_PI
 end
 
 --make mobs fly up or down based on their y difference

mods/ENTITIES/mcl_mobs/api/spawning.lua

@@ -167,7 +167,7 @@ Overworld regular:
 
 
 -- count how many mobs are in an area
-local count_mobs = function(pos)
+local function count_mobs(pos)
 	local num = 0
 	for _,object in pairs(get_objects_inside_radius(pos, aoc_range)) do
 		if object and object:get_luaentity() and object:get_luaentity()._cmi_is_mob then
@@ -242,8 +242,7 @@ function mobs:spawn_specific(name, dimension, type_of_spawning, biomes, min_ligh
 	end
 
 	--[[
-	local spawn_action
-	spawn_action = function(pos, node, active_object_count, active_object_count_wider, name)
+	local function spawn_action(pos, node, active_object_count, active_object_count_wider, name)
 
 			local orig_pos = table.copy(pos)
 			-- is mob actually registered?
@@ -486,7 +485,8 @@ local axis
 local inner = 15
 local outer = 64
 local int = {-1,1}
-local position_calculation = function(pos)
+
+local function position_calculation(pos)
 
 	pos = vector_floor(pos)
 
@@ -501,7 +501,7 @@ local position_calculation = function(pos)
 		pos.z = pos.z + math_random(inner,outer)*int[math_random(1,2)]
 		pos.x = pos.x + math_random(-outer,outer)
 	end
-	return(pos)
+	return pos
 end
 
 --[[

mods/ENVIRONMENT/mcl_moon/init.lua

@@ -13,7 +13,7 @@ minetest.log("info", "[mcl_moon] Moon phase offset of this world: "..phase_offse
 mcl_moon = {}
 mcl_moon.MOON_PHASES = MOON_PHASES
 
-mcl_moon.get_moon_phase = function()
+function mcl_moon.get_moon_phase()
 	local after_midday = 0
 	-- Moon phase changes after midday
 	local tod = minetest.get_timeofday()
@@ -23,7 +23,7 @@ mcl_moon.get_moon_phase = function()
 	return (minetest.get_day_count() + phase_offset + after_midday) % MOON_PHASES
 end
 
-local get_moon_texture = function()
+local function get_moon_texture()
 	local phase = mcl_moon.get_moon_phase()
 	local x = phase % MOON_PHASES_HALF
 	local y

mods/ENVIRONMENT/mcl_weather/rain.lua

@@ -20,7 +20,7 @@ mcl_weather.rain = {
 	init_done = false,
 }
 
-mcl_weather.rain.sound_handler = function(player)
+function mcl_weather.rain.sound_handler(player)
 	return minetest.sound_play("weather_rain", {
 		to_player = player:get_player_name(),
 		loop = true,
@@ -28,7 +28,7 @@ mcl_weather.rain.sound_handler = function(player)
 end
 
 -- set skybox based on time (uses skycolor api)
-mcl_weather.rain.set_sky_box = function()
+function mcl_weather.rain.set_sky_box()
 	if mcl_weather.state == "rain" then
 		mcl_weather.skycolor.add_layer(
 			"weather-pack-rain-sky",
@@ -46,8 +46,7 @@ end
 
 -- creating manually parctiles instead of particles spawner because of easier to control
 -- spawn position.
-mcl_weather.rain.add_rain_particles = function(player)
-
+function mcl_weather.rain.add_rain_particles(player)
 	mcl_weather.rain.last_rp_count = 0
 	for i=mcl_weather.rain.particles_count, 1,-1 do
 		local random_pos_x, random_pos_y, random_pos_z = mcl_weather.get_random_pos_by_player_look_dir(player)
@@ -70,7 +69,7 @@ mcl_weather.rain.add_rain_particles = function(player)
 end
 
 -- Simple random texture getter
-mcl_weather.rain.get_texture = function()
+function mcl_weather.rain.get_texture()
 	local texture_name
 	local random_number = math.random()
 	if random_number > 0.33 then
@@ -85,7 +84,7 @@ end
 
 -- register player for rain weather.
 -- basically needs for origin sky reference and rain sound controls.
-mcl_weather.rain.add_player = function(player)
+function mcl_weather.rain.add_player(player)
 	if mcl_weather.players[player:get_player_name()] == nil then
 		local player_meta = {}
 		player_meta.origin_sky = {player:get_sky()}
@@ -95,7 +94,7 @@ end
 
 -- remove player from player list effected by rain.
 -- be sure to remove sound before removing player otherwise soundhandler reference will be lost.
-mcl_weather.rain.remove_player = function(player)
+function mcl_weather.rain.remove_player(player)
 	local player_meta = mcl_weather.players[player:get_player_name()]
 	if player_meta ~= nil and player_meta.origin_sky ~= nil then
 		player:set_clouds({color="#FFF0F0E5"})
@@ -119,7 +118,7 @@ end)
 -- adds and removes rain sound depending how much rain particles around player currently exist.
 -- have few seconds delay before each check to avoid on/off sound too often
 -- when player stay on 'edge' where sound should play and stop depending from random raindrop appearance.
-mcl_weather.rain.update_sound = function(player)
+function mcl_weather.rain.update_sound(player)
 	local player_meta = mcl_weather.players[player:get_player_name()]
 	if player_meta ~= nil then
 		if player_meta.sound_updated ~= nil and player_meta.sound_updated + 5 > minetest.get_gametime() then
@@ -140,7 +139,7 @@ mcl_weather.rain.update_sound = function(player)
 end
 
 -- rain sound removed from player.
-mcl_weather.rain.remove_sound = function(player)
+function mcl_weather.rain.remove_sound(player)
 	local player_meta = mcl_weather.players[player:get_player_name()]
 	if player_meta ~= nil and player_meta.sound_handler ~= nil then
 		minetest.sound_fade(player_meta.sound_handler, -0.5, 0.0)
@@ -150,7 +149,7 @@ mcl_weather.rain.remove_sound = function(player)
 end
 
 -- callback function for removing rain
-mcl_weather.rain.clear = function()
+function mcl_weather.rain.clear()
 	mcl_weather.rain.raining = false
 	mcl_weather.rain.sky_last_update = -1
 	mcl_weather.rain.init_done = false
@@ -166,11 +165,10 @@ minetest.register_globalstep(function(dtime)
 	if mcl_weather.state ~= "rain" then
 		return false
 	end
-
 	mcl_weather.rain.make_weather()
 end)
 
-mcl_weather.rain.make_weather = function()
+function mcl_weather.rain.make_weather()
 	if mcl_weather.rain.init_done == false then
 		mcl_weather.rain.raining = true
 		mcl_weather.rain.set_sky_box()
@@ -190,7 +188,7 @@ mcl_weather.rain.make_weather = function()
 end
 
 -- Switch the number of raindrops: "thunder" for many raindrops, otherwise for normal raindrops
-mcl_weather.rain.set_particles_mode = function(mode)
+function mcl_weather.rain.set_particles_mode(mode)
 	if mode == "thunder" then
 		mcl_weather.rain.particles_count = PARTICLES_COUNT_THUNDER
 	else

mods/HUD/hudbars/init.lua

@@ -1,17 +1,22 @@
-local S = minetest.get_translator("hudbars")
+local modname = minetest.get_current_modname()
+local modpath = minetest.get_modpath(modname)
+
+local S = minetest.get_translator(modname)
 local N = function(s) return s end
 
-hb = {}
-
-hb.hudtables = {}
+local math = math
+local table = table
 
+hb = {
+    hudtables = {},
     -- number of registered HUD bars
-hb.hudbars_count = 0
-
+    hudbars_count = 0,
     -- table which records which HUD bar slots have been “registered” so far; used for automatic positioning
-hb.registered_slots = {}
-
-hb.settings = {}
+    registered_slots = {},
+    settings = {},
+    -- Table which contains all players with active default HUD bars (only for internal use)
+    players = {},
+}
 
 function hb.load_setting(sname, stype, defaultval, valid_values)
 	local sval
@@ -45,7 +50,8 @@ function hb.load_setting(sname, stype, defaultval, valid_values)
 end
 
 -- Load default settings
-dofile(minetest.get_modpath("hudbars").."/default_settings.lua")
+dofile(modpath.."/default_settings.lua")
+
 if minetest.get_modpath("mcl_experience") and not minetest.is_creative_enabled("") then
 	-- reserve some space for experience bar:
 	hb.settings.start_offset_left.y = hb.settings.start_offset_left.y - 20
@@ -85,9 +91,6 @@ local function make_label(format_string, format_string_config, label, start_valu
 	return ret
 end
 
--- Table which contains all players with active default HUD bars (only for internal use)
-hb.players = {}
-
 function hb.value_to_barlength(value, max)
 	if max == 0 then
 		return 0

mods/HUD/mcl_experience/init.lua

@@ -120,9 +120,9 @@ end
 hud_manager.hud_exists = function(player,hud_name)
     local name = player:get_player_name()
     if player_huds[name] and player_huds[name][hud_name] then
-        return(true)
+        return true
     else
-        return(false)
+        return false
     end
 end
 -------------------
@@ -150,7 +150,7 @@ end)
 
 function mcl_experience.get_player_xp_level(player)
 	local name = player:get_player_name()
-	return(pool[name].level)
+	return pool[name].level
 end
 
 function mcl_experience.set_player_xp_level(player,level)

mods/HUD/mcl_hbarmor/init.lua

@@ -1,31 +1,34 @@
-local S = minetest.get_translator("mcl_hbarmor")
+local S = minetest.get_translator(minetest.get_current_modname())
 
-local mcl_hbarmor = {}
+local math = math
+local tonumber = tonumber
 
+local get_connected_players = minetest.get_connected_players
+
+local mcl_hbarmor = {
     -- HUD statbar values
-mcl_hbarmor.armor = {}
-
+    armor = {},
     -- Stores if player's HUD bar has been initialized so far.
-mcl_hbarmor.player_active = {}
-
+    player_active = {},
     -- Time difference in seconds between updates to the HUD armor bar.
     -- Increase this number for slow servers.
-mcl_hbarmor.tick = 0.1
-
+    tick = 0.1,
     -- If true, the armor bar is hidden when the player does not wear any armor
-mcl_hbarmor.autohide = true
+    autohide = true,
+}
 
-set = minetest.settings:get("mcl_hbarmor_tick")
-if tonumber(set) ~= nil then
-	mcl_hbarmor.tick = tonumber(set)
+local tick_config = minetest.settings:get("mcl_hbarmor_tick")
+
+if tonumber(tick_config) ~= nil then
+	mcl_hbarmor.tick = tonumber(tick_config)
 end
 
 
-local must_hide = function(playername, arm)
+local function must_hide(playername, arm)
 	return arm == 0
 end
 
-local arm_printable = function(arm)
+local function arm_printable(arm)
 	return math.ceil(math.floor(arm+0.5))
 end
 
@@ -106,12 +109,13 @@ end)
 local main_timer = 0
 local timer = 0
 minetest.register_globalstep(function(dtime)
+    --TODO: replace this by playerglobalstep API then implemented
 	main_timer = main_timer + dtime
 	timer = timer + dtime
 	if main_timer > mcl_hbarmor.tick or timer > 4 then
 		if minetest.settings:get_bool("enable_damage") then
 			if main_timer > mcl_hbarmor.tick then main_timer = 0 end
-			for _,player in pairs(minetest.get_connected_players()) do
+			for _,player in pairs(get_connected_players()) do
 				local name = player:get_player_name()
 				if mcl_hbarmor.player_active[name] == true then
 					local ret = mcl_hbarmor.get_armor(player)

mods/ITEMS/REDSTONE/mesecons/presets.lua

@@ -96,12 +96,12 @@ local function rules_from_dir(ruleset, dir)
 	if dir.z == -1 then return ruleset.zn end
 end
 
-mesecon.rules.buttonlike_get = function(node)
+function mesecon.rules.buttonlike_get(node)
 	local dir = minetest.facedir_to_dir(node.param2)
 	return rules_from_dir(rules_buttonlike, dir)
 end
 
-mesecon.rules.wallmounted_get = function(node)
+function mesecon.rules.wallmounted_get(node)
 	local dir = minetest.wallmounted_to_dir(node.param2)
 	return rules_from_dir(rules_wallmounted, dir)
 end

mods/ITEMS/REDSTONE/mesecons/services.lua

@@ -1,6 +1,6 @@
 -- Dig and place services
 
-mesecon.on_placenode = function(pos, node)
+function mesecon.on_placenode(pos, node)
 	mesecon.execute_autoconnect_hooks_now(pos, node)
 
 	-- Receptors: Send on signal when active
@@ -70,7 +70,7 @@ mesecon.on_placenode = function(pos, node)
 	end
 end
 
-mesecon.on_dignode = function(pos, node)
+function mesecon.on_dignode(pos, node)
 	if mesecon.is_conductor_on(node) then
 		mesecon.receptor_off(pos, mesecon.conductor_get_rules(node))
 	elseif mesecon.is_receptor_on(node.name) then
@@ -95,7 +95,7 @@ mesecon.on_dignode = function(pos, node)
 	mesecon.execute_autoconnect_hooks_queue(pos, node)
 end
 
-mesecon.on_blastnode = function(pos, node)
+function mesecon.on_blastnode(pos, node)
 	local node = minetest.get_node(pos)
 	minetest.remove_node(pos)
 	mesecon.on_dignode(pos, node)

mods/ITEMS/REDSTONE/mesecons_button/init.lua

@@ -21,7 +21,7 @@ local boxes_on = {
 }
 
 -- Push the button
-mesecon.push_button = function(pos, node)
+function mesecon.push_button(pos, node)
 	-- No-op if button is already pushed
 	if mesecon.is_receptor_on(node) then
 		return

mods/ITEMS/mcl_core/crafting.lua

@@ -4,7 +4,7 @@
 -- Crafting definition
 --
 
-local craft_planks = function(output, input)
+local function craft_planks(output, input)
 	minetest.register_craft({
 		output = "mcl_core:"..output.."wood 4",
 		recipe = {

mods/ITEMS/mcl_core/functions.lua

@@ -53,7 +53,7 @@ minetest.register_abm({
 --
 
 -- Functions
-mcl_core.grow_cactus = function(pos, node)
+function mcl_core.grow_cactus(pos, node)
 	pos.y = pos.y-1
 	local name = minetest.get_node(pos).name
 	if minetest.get_item_group(name, "sand") ~= 0 then
@@ -71,7 +71,7 @@ mcl_core.grow_cactus = function(pos, node)
 	end
 end
 
-mcl_core.grow_reeds = function(pos, node)
+function mcl_core.grow_reeds(pos, node)
 	pos.y = pos.y-1
 	local name = minetest.get_node(pos).name
 	if minetest.get_item_group(name, "soil_sugarcane") ~= 0 then
@@ -114,8 +114,8 @@ local function drop_attached_node(p)
 end
 
 -- Helper function for node actions for liquid flow
-local liquid_flow_action = function(pos, group, action)
-	local check_detach = function(pos, xp, yp, zp)
+local function liquid_flow_action(pos, group, action)
+	local function check_detach(pos, xp, yp, zp)
 		local p = {x=pos.x+xp, y=pos.y+yp, z=pos.z+zp}
 		local n = minetest.get_node_or_nil(p)
 		if not n then
@@ -594,13 +594,13 @@ function mcl_core.generate_v6_spruce_tree(pos)
 	vm:write_to_map()
 end
 
-mcl_core.generate_spruce_tree = function(pos)
+function mcl_core.generate_spruce_tree(pos)
 	local r = math.random(1, 3)
 	local path = minetest.get_modpath("mcl_core") .. "/schematics/mcl_core_spruce_"..r..".mts"
 	minetest.place_schematic({ x = pos.x - 3, y = pos.y - 1, z = pos.z - 3 }, path, "0", nil, false)
 end
 
-mcl_core.generate_huge_spruce_tree = function(pos)
+function mcl_core.generate_huge_spruce_tree(pos)
 	local r1 = math.random(1, 2)
 	local r2 = math.random(1, 4)
 	local path
@@ -911,7 +911,7 @@ minetest.register_lbm({
 --------------------------
 local treelight = 9
 
-local sapling_grow_action = function(tree_id, soil_needed, one_by_one, two_by_two, sapling)
+local function sapling_grow_action(tree_id, soil_needed, one_by_one, two_by_two, sapling)
 	return function(pos)
 		local meta = minetest.get_meta(pos)
 		if meta:get("grown") then return end
@@ -953,7 +953,7 @@ local sapling_grow_action = function(tree_id, soil_needed, one_by_one, two_by_tw
 			-- This sapling grows in a special way when there are 4 saplings in a 2×2 pattern
 			if two_by_two then
 				-- Check 8 surrounding saplings and try to find a 2×2 pattern
-				local is_sapling = function(pos, sapling)
+				local function is_sapling(pos, sapling)
 					return minetest.get_node(pos).name == sapling
 				end
 				local p2 = {x=pos.x+1, y=pos.y, z=pos.z}
@@ -1040,7 +1040,7 @@ local grow_birch = sapling_grow_action(BIRCH_TREE_ID, 1, true, false)
 -- pos: Position
 -- node: Node table of the node at this position, from minetest.get_node
 -- Returns true on success and false on failure
-mcl_core.grow_sapling = function(pos, node)
+function mcl_core.grow_sapling(pos, node)
 	local grow
 	if node.name == "mcl_core:sapling" then
 		grow = grow_oak
@@ -1245,7 +1245,7 @@ minetest.register_abm({
 		end
 
 		-- Add vines below pos (if empty)
-		local spread_down = function(origin, target, dir, node)
+		local function spread_down(origin, target, dir, node)
 			if math.random(1, 2) == 1 then
 				if minetest.get_node(target).name == "air" then
 					minetest.add_node(target, {name = "mcl_core:vine", param2 = node.param2})
@@ -1254,7 +1254,7 @@ minetest.register_abm({
 		end
 
 		-- Add vines above pos if it is backed up
-		local spread_up = function(origin, target, dir, node)
+		local function spread_up(origin, target, dir, node)
 			local vines_in_area = minetest.find_nodes_in_area({x=origin.x-4, y=origin.y-1, z=origin.z-4}, {x=origin.x+4, y=origin.y+1, z=origin.z+4}, "mcl_core:vine")
 			-- Less then 4 vines blocks around the ticked vines block (remember the ticked block is counted by above function as well)
 			if #vines_in_area < 5 then
@@ -1273,7 +1273,7 @@ minetest.register_abm({
 			end
 		end
 
-		local spread_horizontal = function(origin, target, dir, node)
+		local function spread_horizontal(origin, target, dir, node)
 			local vines_in_area = minetest.find_nodes_in_area({x=origin.x-4, y=origin.y-1, z=origin.z-4}, {x=origin.x+4, y=origin.y+1, z=origin.z+4}, "mcl_core:vine")
 			-- Less then 4 vines blocks around the ticked vines block (remember the ticked block is counted by above function as well)
 			if #vines_in_area < 5 then
@@ -1310,7 +1310,7 @@ minetest.register_abm({
 })
 
 -- Returns true of the node supports vines
-mcl_core.supports_vines = function(nodename)
+function mcl_core.supports_vines(nodename)
 	local def = minetest.registered_nodes[nodename]
 	-- Rules: 1) walkable 2) full cube
 	return def.walkable and
@@ -1530,7 +1530,7 @@ end
 --
 -- The snowable nodes also MUST have _mcl_snowed defined to contain the name
 -- of the snowed node.
-mcl_core.register_snowed_node = function(itemstring_snowed, itemstring_clear, tiles, sounds, clear_colorization, desc)
+function mcl_core.register_snowed_node(itemstring_snowed, itemstring_clear, tiles, sounds, clear_colorization, desc)
 	local def = table.copy(minetest.registered_nodes[itemstring_clear])
 	local create_doc_alias
 	if def.description then
@@ -1593,7 +1593,7 @@ end
 -- Reverts a snowed dirtlike node at pos to its original snow-less form.
 -- This function assumes there is no snow cover node above. This function
 -- MUST NOT be called if there is a snow cover node above pos.
-mcl_core.clear_snow_dirt = function(pos, node)
+function mcl_core.clear_snow_dirt(pos, node)
 	local def = minetest.registered_nodes[node.name]
 	if def._mcl_snowless then
 		minetest.swap_node(pos, {name = def._mcl_snowless, param2=node.param2})
@@ -1605,7 +1605,7 @@ end
 
 -- on_construct
 -- Makes constructed snowable node snowed if placed below a snow cover node.
-mcl_core.on_snowable_construct = function(pos)
+function mcl_core.on_snowable_construct(pos)
 	-- Myself
 	local node = minetest.get_node(pos)
 
@@ -1633,7 +1633,7 @@ end
 
 -- on_construct
 -- Makes snowable node below snowed.
-mcl_core.on_snow_construct = function(pos)
+function mcl_core.on_snow_construct(pos)
 	local npos = {x=pos.x, y=pos.y-1, z=pos.z}
 	local node = minetest.get_node(npos)
 	local def = minetest.registered_nodes[node.name]
@@ -1643,7 +1643,7 @@ mcl_core.on_snow_construct = function(pos)
 end
 -- after_destruct
 -- Clears snowed dirtlike node below.
-mcl_core.after_snow_destruct = function(pos)
+function mcl_core.after_snow_destruct(pos)
 	local nn = minetest.get_node(pos).name
 	-- No-op if snow was replaced with snow
 	if minetest.get_item_group(nn, "snow_cover") == 1 then

mods/ITEMS/mcl_core/nodes_base.lua

@@ -86,7 +86,7 @@ minetest.register_node("mcl_core:stone_with_gold", {
 })
 
 local redstone_timer = 68.28
-local redstone_ore_activate = function(pos)
+local function redstone_ore_activate(pos)
 	minetest.swap_node(pos, {name="mcl_core:stone_with_redstone_lit"})
 	local t = minetest.get_node_timer(pos)
 	t:start(redstone_timer)
@@ -124,7 +124,7 @@ minetest.register_node("mcl_core:stone_with_redstone", {
 	}
 })
 
-local redstone_ore_reactivate = function(pos)
+local function redstone_ore_reactivate(pos)
 	local t = minetest.get_node_timer(pos)
 	t:start(redstone_timer)
 end
@@ -864,7 +864,7 @@ minetest.register_node("mcl_core:packed_ice", {
 -- Frosted Ice (4 nodes)
 for i=0,3 do
 	local ice = {}
-	ice.increase_age = function(pos, ice_near, first_melt)
+	function ice.increase_age(pos, ice_near, first_melt)
 		-- Increase age of frosted age or turn to water source if too old
 		local nn = minetest.get_node(pos).name
 		local age = tonumber(string.sub(nn, -1))

mods/ITEMS/mcl_core/nodes_climb.lua

@@ -1,7 +1,7 @@
 -- Climbable nodes
 local S = minetest.get_translator("mcl_core")
 
-local rotate_climbable = function(pos, node, user, mode)
+local function rotate_climbable(pos, node, user, mode)
 	if mode == screwdriver.ROTATE_FACE then
 		local r = screwdriver.rotate.wallmounted(pos, node, mode)
 		node.param2 = r

mods/ITEMS/mcl_core/nodes_liquid.lua

@@ -212,7 +212,7 @@ S("• When lava is directly above water, the water turns into stone."),
 	_mcl_hardness = -1,
 })
 
-local emit_lava_particle = function(pos)
+local function emit_lava_particle(pos)
 	local node = minetest.get_node(pos)
 	if minetest.get_item_group(node.name, "lava_source") == 0 then
 		return

mods/ITEMS/mcl_core/nodes_trees.lua

@@ -8,7 +8,7 @@ if mod_screwdriver then
 end
 
 -- Register tree trunk (wood) and bark
-local register_tree_trunk = function(subname, description_trunk, description_bark, longdesc, tile_inner, tile_bark, stripped_varient)
+local function register_tree_trunk(subname, description_trunk, description_bark, longdesc, tile_inner, tile_bark, stripped_varient)
 	minetest.register_node("mcl_core:"..subname, {
 		description = description_trunk,
 		_doc_items_longdesc = longdesc,
@@ -91,7 +91,7 @@ local register_stripped_trunk = function(subname, description_stripped_trunk, de
 	})
 end
 
-local register_wooden_planks = function(subname, description, tiles)
+local function register_wooden_planks(subname, description, tiles)
 	minetest.register_node("mcl_core:"..subname, {
 		description = description,
 		_doc_items_longdesc = doc.sub.items.temp.build,
@@ -106,7 +106,7 @@ local register_wooden_planks = function(subname, description, tiles)
 	})
 end
 
-local register_leaves = function(subname, description, longdesc, tiles, sapling, drop_apples, sapling_chances, leafdecay_distance)
+local function register_leaves(subname, description, longdesc, tiles, sapling, drop_apples, sapling_chances, leafdecay_distance)
 	if leafdecay_distance == nil then
 		leafdecay_distance = 4
 	end
@@ -173,7 +173,7 @@ local register_leaves = function(subname, description, longdesc, tiles, sapling,
 	})
 end
 
-local register_sapling = function(subname, description, longdesc, tt_help, texture, selbox)
+local function register_sapling(subname, description, longdesc, tt_help, texture, selbox)
 	minetest.register_node("mcl_core:"..subname, {
 		description = description,
 		_tt_help = tt_help,

mods/ITEMS/mcl_enchanting/engine.lua

@@ -7,7 +7,7 @@ end
 
 function mcl_enchanting.get_enchantments(itemstack)
 	if not itemstack then
-		return({})
+		return {}
 	end
 	return minetest.deserialize(itemstack:get_meta():get_string("mcl_enchanting:enchantments")) or {}
 end

mods/ITEMS/mcl_fences/init.lua

@@ -20,7 +20,7 @@ local cz2 = {-2/16, -0.5, 2/16, 2/16, 1.01, 0.5} --unten(quer) z
 
 mcl_fences = {}
 
-mcl_fences.register_fence = function(id, fence_name, texture, groups, hardness, blast_resistance, connects_to, sounds)
+function mcl_fences.register_fence(id, fence_name, texture, groups, hardness, blast_resistance, connects_to, sounds)
 	local cgroups = table.copy(groups)
 	if cgroups == nil then cgroups = {} end
 	cgroups.fence = 1
@@ -72,7 +72,7 @@ mcl_fences.register_fence = function(id, fence_name, texture, groups, hardness,
 	return fence_id
 end
 
-mcl_fences.register_fence_gate = function(id, fence_gate_name, texture, groups, hardness, blast_resistance, sounds, sound_open, sound_close, sound_gain_open, sound_gain_close)
+function mcl_fences.register_fence_gate(id, fence_gate_name, texture, groups, hardness, blast_resistance, sounds, sound_open, sound_close, sound_gain_open, sound_gain_close)
 	local meta2
 	local state2 = 0
 

mods/ITEMS/mcl_fire/init.lua

@@ -522,7 +522,7 @@ end
 -- * pointed_thing: Pointed thing to ignite
 -- * player: Player who sets fire or nil if nobody
 -- * allow_on_fire: If false, can't ignite fire on fire (default: true)
-mcl_fire.set_fire = function(pointed_thing, player, allow_on_fire)
+function mcl_fire.set_fire(pointed_thing, player, allow_on_fire)
 	local pname
 	if player == nil then
 		pname = ""

mods/ITEMS/mcl_fishing/init.lua

@@ -305,7 +305,7 @@ local flying_bobber_ENTITY={
 }
 
 -- Movement function of flying bobber
-local flying_bobber_on_step = function(self, dtime)
+local function flying_bobber_on_step(self, dtime)
 	self.timer=self.timer+dtime
 	local pos = self.object:get_pos()
 	local node = minetest.get_node(pos)
@@ -315,12 +315,9 @@ local flying_bobber_on_step = function(self, dtime)
 	-- Destroy when hitting a solid node
 	if self._lastpos.x~=nil then
 		if (def and (def.walkable or def.liquidtype == "flowing" or def.liquidtype == "source")) or not def then
-			local make_child= function(object)
-				local ent = object:get_luaentity()
+			local ent = minetest.add_entity(self._lastpos, "mcl_fishing:bobber_entity"):get_luaentity()
 			ent.player = self._thrower
 			ent.child = true
-			end
-			make_child(minetest.add_entity(self._lastpos, "mcl_fishing:bobber_entity"))
 			self.object:remove()
 			return
 		end

mods/ITEMS/xpanes/init.lua

@@ -170,7 +170,7 @@ end
 
 local canonical_color = "yellow"
 -- Register glass pane (stained and unstained)
-local pane = function(description, node, append)
+local function pane(description, node, append)
 	local texture1, longdesc, entry_name, create_entry
 	local is_canonical = true
 	-- Special case: Default (unstained) glass texture

mods/MAPGEN/mcl_biomes/init.lua

@@ -1775,7 +1775,7 @@ local function register_biomelike_ores()
 	-- Mesa strata (registered as sheet ores)
 
 	-- Helper function to create strata.
-	local stratum = function(y_min, height, color, seed, is_perfect)
+	local function stratum(y_min, height, color, seed, is_perfect)
 		if not height then
 			height = 1
 		end
@@ -3079,7 +3079,7 @@ local function register_decorations()
 	})
 
 	-- Doubletall grass
-	local register_doubletall_grass = function(offset, scale, biomes)
+	local function register_doubletall_grass(offset, scale, biomes)
 
 		for b=1, #biomes do
 			local param2 = minetest.registered_biomes[biomes[b]]._mcl_palette_index
@@ -3115,7 +3115,7 @@ local function register_decorations()
 	register_doubletall_grass(-0.0005, -0.03, {"Savanna", "SavannaM"})
 
 	-- Large ferns
-	local register_double_fern = function(offset, scale, biomes)
+	local function register_double_fern(offset, scale, biomes)
 		for b=1, #biomes do
 			local param2 = minetest.registered_biomes[biomes[b]]._mcl_palette_index
 			minetest.register_decoration({
@@ -3149,7 +3149,7 @@ local function register_decorations()
 	register_double_fern(0.15, 0.1, { "JungleM" })
 
 	-- Large flowers
-	local register_large_flower = function(name, biomes, seed, offset, flower_forest_offset)
+	local function register_large_flower(name, biomes, seed, offset, flower_forest_offset)
 		local maxi
 		if flower_forest_offset then
 			maxi = 2

mods/MAPGEN/mcl_mapgen_core/init.lua

@@ -765,7 +765,7 @@ local function register_mgv6_decorations()
 	})
 
 	-- Large flowers
-	local register_large_flower = function(name, seed, offset)
+	local function register_large_flower(name, seed, offset)
 		minetest.register_decoration({
 			deco_type = "schematic",
 			schematic = {
@@ -1169,7 +1169,7 @@ end
 -- minp and maxp (from an on_generated callback) and returns the real world coordinates
 -- as X, Z.
 -- Inverse function of xz_to_biomemap
---[[local biomemap_to_xz = function(index, minp, maxp)
+--[[local function biomemap_to_xz(index, minp, maxp)
 	local xwidth = maxp.x - minp.x + 1
 	local zwidth = maxp.z - minp.z + 1
 	local x = ((index-1) % xwidth) + minp.x
@@ -1180,7 +1180,7 @@ end]]
 -- Takes x and z coordinates and minp and maxp of a generated chunk
 -- (in on_generated callback) and returns a biomemap index)
 -- Inverse function of biomemap_to_xz
-local xz_to_biomemap_index = function(x, z, minp, maxp)
+local function xz_to_biomemap_index(x, z, minp, maxp)
 	local xwidth = maxp.x - minp.x + 1
 	local zwidth = maxp.z - minp.z + 1
 	local minix = x % xwidth
@@ -1404,7 +1404,7 @@ local function generate_structures(minp, maxp, blockseed, biomemap)
 
 									-- TODO: Spawn witch in or around hut when the mob sucks less.
 
-									local place_tree_if_free = function(pos, prev_result)
+									local function place_tree_if_free(pos, prev_result)
 										local nn = minetest.get_node(pos).name
 										if nn == "mcl_flowers:waterlily" or nn == "mcl_core:water_source" or nn == "mcl_core:water_flowing" or nn == "air" then
 											minetest.set_node(pos, {name="mcl_core:tree", param2=0})
@@ -1720,7 +1720,7 @@ end
 
 -- Generate mushrooms in caves manually.
 -- Minetest's API does not support decorations in caves yet. :-(
-local generate_underground_mushrooms = function(minp, maxp, seed)
+local function generate_underground_mushrooms(minp, maxp, seed)
 	local pr_shroom = PseudoRandom(seed-24359)
 	-- Generate rare underground mushrooms
 	-- TODO: Make them appear in groups, use Perlin noise
@@ -1754,7 +1754,7 @@ else
 end
 -- Generate Nether decorations manually: Eternal fire, mushrooms, nether wart
 -- Minetest's API does not support decorations in caves yet. :-(
-local generate_nether_decorations = function(minp, maxp, seed)
+local function generate_nether_decorations(minp, maxp, seed)
 	local pr_nether = PseudoRandom(seed+667)
 
 	if minp.y > mcl_vars.mg_nether_max or maxp.y < mcl_vars.mg_nether_min then
@@ -1771,7 +1771,7 @@ local generate_nether_decorations = function(minp, maxp, seed)
 	local ssand = minetest.find_nodes_in_area_under_air(minp, maxp, {"mcl_nether:soul_sand"})
 
 	-- Helper function to spawn “fake” decoration
-	local special_deco = function(nodes, spawn_func)
+	local function special_deco(nodes, spawn_func)
 		for n = 1, #nodes do
 			bpos = {x = nodes[n].x, y = nodes[n].y + 1, z = nodes[n].z }
 
@@ -1912,7 +1912,7 @@ end
 
 local bedrock_check
 if mcl_vars.mg_bedrock_is_rough then
-	bedrock_check = function(pos, _, pr)
+	function bedrock_check(pos, _, pr)
 		local y = pos.y
 		-- Bedrock layers with increasing levels of roughness, until a perfecly flat bedrock later at the bottom layer
 		-- This code assumes a bedrock height of 5 layers.

mods/MAPGEN/mcl_strongholds/init.lua

@@ -25,7 +25,7 @@ local superflat = mg_name == "flat" and minetest.get_mapgen_setting("mcl_superfl
 -- The stronghold positions are based on the world seed.
 -- The actual position might be offset by a few blocks because it might be shifted
 -- to make sure the end portal room is completely within the boundaries of a mapchunk.
-local init_strongholds = function()
+local function init_strongholds()
 	if strongholds_inited then
 		return
 	end
@@ -67,7 +67,7 @@ local init_strongholds = function()
 end
 
 -- Stronghold generation for register_on_generated.
-local generate_strongholds = function(minp, maxp, blockseed)
+local function generate_strongholds(minp, maxp, blockseed)
 	local pr = PseudoRandom(blockseed)
 	for s=1, #strongholds do
 		if not strongholds[s].generated then

mods/MAPGEN/mcl_structures/init.lua

@@ -1,5 +1,9 @@
-local S = minetest.get_translator("mcl_structures")
+local modname = minetest.get_current_modname()
+local S = minetest.get_translator(modname)
+local modpath = minetest.get_modpath(modname)
+
 mcl_structures = {}
+
 local rotations = {
 	"0",
 	"90",
@@ -14,8 +18,9 @@ local function ecb_place(blockpos, action, calls_remaining, param)
 		param.after_placement_callback(param.p1, param.p2, param.size, param.rotation, param.pr, param.callback_param)
 	end
 end
-mcl_structures.place_schematic = function(pos, schematic, rotation, replacements, force_placement, flags, after_placement_callback, pr, callback_param)
-	local s = loadstring(minetest.serialize_schematic(schematic, "lua", {lua_use_comments = false, lua_num_indent_spaces = 0}) .. " return(schematic)")()
+
+function mcl_structures.place_schematic(pos, schematic, rotation, replacements, force_placement, flags, after_placement_callback, pr, callback_param)
+	local s = loadstring(minetest.serialize_schematic(schematic, "lua", {lua_use_comments = false, lua_num_indent_spaces = 0}) .. " return schematic")()
 	if s and s.size then
 		local x, z = s.size.x, s.size.z
 		if rotation then
@@ -37,7 +42,7 @@ mcl_structures.place_schematic = function(pos, schematic, rotation, replacements
 	end
 end
 
-mcl_structures.get_struct = function(file)
+function mcl_structures.get_struct(file)
 	local localfile = minetest.get_modpath("mcl_structures").."/schematics/"..file
 	local file, errorload = io.open(localfile, "rb")
 	if errorload ~= nil then
@@ -53,7 +58,7 @@ end
 
 -- Call on_construct on pos.
 -- Useful to init chests from formspec.
-local init_node_construct = function(pos)
+local function init_node_construct(pos)
 	local node = minetest.get_node(pos)
 	local def = minetest.registered_nodes[node.name]
 	if def and def.on_construct then
@@ -64,7 +69,7 @@ local init_node_construct = function(pos)
 end
 
 -- The call of Struct
-mcl_structures.call_struct = function(pos, struct_style, rotation, pr)
+function mcl_structures.call_struct(pos, struct_style, rotation, pr)
 	minetest.log("action","[mcl_structures] call_struct " .. struct_style.." at "..minetest.pos_to_string(pos))
 	if not rotation then
 		rotation = "random"
@@ -96,13 +101,13 @@ mcl_structures.call_struct = function(pos, struct_style, rotation, pr)
 	end
 end
 
-mcl_structures.generate_desert_well = function(pos, rot)
+function mcl_structures.generate_desert_well(pos, rot)
 	local newpos = {x=pos.x,y=pos.y-2,z=pos.z}
-	local path = minetest.get_modpath("mcl_structures").."/schematics/mcl_structures_desert_well.mts"
+	local path = modpath.."/schematics/mcl_structures_desert_well.mts"
 	return mcl_structures.place_schematic(newpos, path, rot or "0", nil, true)
 end
 
-mcl_structures.generate_igloo = function(pos, rotation, pr)
+function mcl_structures.generate_igloo(pos, rotation, pr)
 	-- Place igloo
 	local success, rotation = mcl_structures.generate_igloo_top(pos, pr)
 	-- Place igloo basement with 50% chance
@@ -148,7 +153,7 @@ mcl_structures.generate_igloo = function(pos, rotation, pr)
 		else
 			return success
 		end
-		local set_brick = function(pos)
+		local function set_brick(pos)
 			local c = pr:next(1, 3) -- cracked chance
 			local m = pr:next(1, 10) -- chance for monster egg
 			local brick
@@ -198,11 +203,11 @@ mcl_structures.generate_igloo = function(pos, rotation, pr)
 	return success
 end
 
-mcl_structures.generate_igloo_top = function(pos, pr)
+function mcl_structures.generate_igloo_top(pos, pr)
 	-- FIXME: This spawns bookshelf instead of furnace. Fix this!
 	-- Furnace does ot work atm because apparently meta is not set. :-(
 	local newpos = {x=pos.x,y=pos.y-1,z=pos.z}
-	local path = minetest.get_modpath("mcl_structures").."/schematics/mcl_structures_igloo_top.mts"
+	local path = modpath.."/schematics/mcl_structures_igloo_top.mts"
 	local rotation = tostring(pr:next(0,3)*90)
 	return mcl_structures.place_schematic(newpos, path, rotation, nil, true), rotation
 end
@@ -250,22 +255,22 @@ local function igloo_placement_callback(p1, p2, size, orientation, pr)
 	mcl_loot.fill_inventory(inv, "main", lootitems, pr)
 end
 
-mcl_structures.generate_igloo_basement = function(pos, orientation, pr)
+function mcl_structures.generate_igloo_basement(pos, orientation, pr)
 	-- TODO: Add brewing stand
 	-- TODO: Add monster eggs
 	-- TODO: Spawn villager and zombie villager
-	local path = minetest.get_modpath("mcl_structures").."/schematics/mcl_structures_igloo_basement.mts"
+	local path = modpath.."/schematics/mcl_structures_igloo_basement.mts"
 	mcl_structures.place_schematic(pos, path, orientation, nil, true, nil, igloo_placement_callback, pr)
 end
 
-mcl_structures.generate_boulder = function(pos, rotation, pr)
+function mcl_structures.generate_boulder(pos, rotation, pr)
 	-- Choose between 2 boulder sizes (2×2×2 or 3×3×3)
 	local r = pr:next(1, 10)
 	local path
 	if r <= 3 then
-		path = minetest.get_modpath("mcl_structures").."/schematics/mcl_structures_boulder_small.mts"
+		path = modpath.."/schematics/mcl_structures_boulder_small.mts"
 	else
-		path = minetest.get_modpath("mcl_structures").."/schematics/mcl_structures_boulder.mts"
+		path = modpath.."/schematics/mcl_structures_boulder.mts"
 	end
 
 	local newpos = {x=pos.x,y=pos.y-1,z=pos.z}
@@ -284,22 +289,22 @@ local function hut_placement_callback(p1, p2, size, orientation, pr)
 	end
 end
 
-mcl_structures.generate_witch_hut = function(pos, rotation, pr)
+function mcl_structures.generate_witch_hut(pos, rotation, pr)
 	local path = minetest.get_modpath("mcl_structures").."/schematics/mcl_structures_witch_hut.mts"
 	mcl_structures.place_schematic(pos, path, rotation, nil, true, nil, hut_placement_callback, pr)
 end
 
-mcl_structures.generate_ice_spike_small = function(pos, rotation)
+function mcl_structures.generate_ice_spike_small(pos, rotation)
 	local path = minetest.get_modpath("mcl_structures").."/schematics/mcl_structures_ice_spike_small.mts"
 	return minetest.place_schematic(pos, path, rotation or "random", nil, false) -- don't serialize schematics for registered biome decorations, for MT 5.4.0
 end
 
-mcl_structures.generate_ice_spike_large = function(pos, rotation)
+function mcl_structures.generate_ice_spike_large(pos, rotation)
 	local path = minetest.get_modpath("mcl_structures").."/schematics/mcl_structures_ice_spike_large.mts"
 	return minetest.place_schematic(pos, path, rotation or "random", nil, false) -- don't serialize schematics for registered biome decorations, for MT 5.4.0
 end
 
-mcl_structures.generate_fossil = function(pos, rotation, pr)
+function mcl_structures.generate_fossil(pos, rotation, pr)
 	-- Generates one out of 8 possible fossil pieces
 	local newpos = {x=pos.x,y=pos.y-1,z=pos.z}
 	local fossils = {
@@ -317,17 +322,17 @@ mcl_structures.generate_fossil = function(pos, rotation, pr)
 	return mcl_structures.place_schematic(newpos, path, rotation or "random", nil, true)
 end
 
-mcl_structures.generate_end_exit_portal = function(pos, rot)
+function mcl_structures.generate_end_exit_portal(pos, rot)
 	local path = minetest.get_modpath("mcl_structures").."/schematics/mcl_structures_end_exit_portal.mts"
 	return mcl_structures.place_schematic(pos, path, rot or "0", {["mcl_portals:portal_end"] = "air"}, true)
 end
 
-mcl_structures.generate_end_exit_portal_open = function(pos, rot)
+function mcl_structures.generate_end_exit_portal_open(pos, rot)
 	local path = minetest.get_modpath("mcl_structures").."/schematics/mcl_structures_end_exit_portal.mts"
 	return mcl_structures.place_schematic(pos, path, rot or "0", nil, true)
 end
 
-mcl_structures.generate_end_gateway_portal = function(pos, rot)
+function mcl_structures.generate_end_gateway_portal(pos, rot)
 	local path = minetest.get_modpath("mcl_structures").."/schematics/mcl_structures_end_gateway_portal.mts"
 	return mcl_structures.place_schematic(pos, path, rot or "0", nil, true)
 end
@@ -410,7 +415,7 @@ local function shrine_placement_callback(p1, p2, size, rotation, pr)
 	end
 end
 
-mcl_structures.generate_end_portal_shrine = function(pos, rotation, pr)
+function mcl_structures.generate_end_portal_shrine(pos, rotation, pr)
 	local offset = {x=6, y=4, z=6}
 	--local size = {x=13, y=8, z=13}
 	local newpos = { x = pos.x - offset.x, y = pos.y, z = pos.z - offset.z }
@@ -493,7 +498,7 @@ local function temple_placement_callback(p1, p2, size, rotation, pr)
 	end
 end
 
-mcl_structures.generate_desert_temple = function(pos, rotation, pr)
+function mcl_structures.generate_desert_temple(pos, rotation, pr)
 	-- No Generating for the temple ... Why using it ? No Change
 	local path = minetest.get_modpath("mcl_structures").."/schematics/mcl_structures_desert_temple.mts"
 	local newpos = {x=pos.x,y=pos.y-12,z=pos.z}
@@ -517,7 +522,7 @@ Format of return value:
 
 TODO: Implement this function for all other structure types as well.
 ]]
-mcl_structures.get_registered_structures = function(structure_type)
+function mcl_structures.get_registered_structures(structure_type)
 	if registered_structures[structure_type] then
 		return table.copy(registered_structures[structure_type])
 	else
@@ -527,7 +532,7 @@ end
 
 -- Register a structures table for the given type. The table format is the same as for
 -- mcl_structures.get_registered_structures.
-mcl_structures.register_structures = function(structure_type, structures)
+function mcl_structures.register_structures(structure_type, structures)
 	registered_structures[structure_type] = structures
 end
 

mods/MAPGEN/mcl_villages/buildings.lua

@@ -14,7 +14,7 @@ function settlements.build_schematic(vm, data, va, pos, building, replace_wall,
   -- schematic conversion to lua
   local schem_lua = minetest.serialize_schematic(building,
     "lua",
-    {lua_use_comments = false, lua_num_indent_spaces = 0}).." return(schematic)"
+    {lua_use_comments = false, lua_num_indent_spaces = 0}).." return schematic"
   -- replace material
   if replace_wall == "y" then
     schem_lua = schem_lua:gsub("mcl_core:cobble", material)
@@ -228,7 +228,7 @@ function settlements.place_schematics(settlement_info, pr)
 		-- schematic conversion to lua
 		local schem_lua = minetest.serialize_schematic(building,
 			"lua",
-			{lua_use_comments = false, lua_num_indent_spaces = 0}).." return(schematic)"
+			{lua_use_comments = false, lua_num_indent_spaces = 0}).." return schematic"
 		schem_lua = schem_lua:gsub("mcl_core:stonebrickcarved", "mcl_villages:stonebrickcarved")
 		-- replace material
 		if replace_wall then

mods/MAPGEN/mcl_villages/const.lua

@@ -1,5 +1,5 @@
 -- switch for debugging
-settlements.debug = function(message)
+function settlements.debug(message)
 	-- minetest.chat_send_all(message)
 	-- minetest.log("warning", "[mcl_villages] "..message)
 	minetest.log("verbose", "[mcl_villages] "..message)

mods/MAPGEN/tsm_railcorridors/gameconfig.lua

@@ -27,7 +27,7 @@ if mg_name == "v6" then
 	}
 else
 	-- This generates dark oak wood in mesa biomes and oak wood everywhere else.
-	tsm_railcorridors.nodes.corridor_woods_function = function(pos, node)
+	function tsm_railcorridors.nodes.corridor_woods_function(pos, node)
 		if minetest.get_item_group(node.name, "hardened_clay") ~= 0 then
 			return "mcl_core:darkwood", "mcl_fences:dark_oak_fence"
 		else

mods/MAPGEN/tsm_railcorridors/init.lua

@@ -685,7 +685,7 @@ local function create_corridor_section(waypoint, axis, sign, up_or_down, up_or_d
 
 		-- Randomly returns either the left or right side of the main rail.
 		-- Also returns offset as second return value.
-		local left_or_right = function(pos, vek)
+		local function left_or_right(pos, vek)
 			local off
 			if pr:next(1, 2) == 1 then
 				-- left
@@ -765,7 +765,7 @@ local function create_corridor_section(waypoint, axis, sign, up_or_down, up_or_d
 		-- Place cobwebs left and right in the corridor
 		if place_cobwebs and tsm_railcorridors.nodes.cobweb then
 			-- Helper function to place a cobweb at the side (based on chance an Perlin noise)
-			local cobweb_at_side = function(basepos, vek)
+			local function cobweb_at_side(basepos, vek)
 				if pr:next(1,5) == 1 then
 					local h = pr:next(0, 2) -- 3 possible cobweb heights
 					local cpos = {x=basepos.x+vek.x, y=basepos.y+h, z=basepos.z+vek.z}

mods/PLAYER/mcl_playerinfo/init.lua

@@ -1,3 +1,5 @@
+local table = table
+
 -- Player state for public API
 mcl_playerinfo = {}
 
@@ -21,7 +23,7 @@ end
 
 local time = 0
 
-local get_player_nodes = function(player_pos)
+local function get_player_nodes(player_pos)
 	local work_pos = table.copy(player_pos)
 
 	-- what is around me?

mods/PLAYER/mcl_playerplus/init.lua

@@ -25,7 +25,7 @@ local mcl_playerplus_internal = {}
 local time = 0
 local look_pitch = 0
 
-local player_collision = function(player)
+local function player_collision(player)
 
 	local pos = player:get_pos()
 	--local vel = player:get_velocity()
@@ -48,8 +48,7 @@ local player_collision = function(player)
 			z = z + (vec.z * force)
 		end
 	end
-
-	return({x,z})
+	return {x,z}
 end
 
 -- converts yaw to degrees
@@ -57,7 +56,7 @@ local function degrees(rad)
 	return rad * 180.0 / math.pi
 end
 
-local dir_to_pitch = function(dir)
+local function dir_to_pitch(dir)
 	--local dir2 = vector.normalize(dir)
 	local xz = math.abs(dir.x) + math.abs(dir.z)
 	return -math.atan2(-dir.y, xz)

mods/PLAYER/mcl_skins/init.lua

@@ -70,7 +70,7 @@ while true do
 	id = id + 1
 end
 
-mcl_skins.cycle_skin = function(player)
+function mcl_skins.cycle_skin(player)
 	local skin_id = tonumber(player:get_meta():get_string("mcl_skins:skin_id"))
 	if not skin_id then
 		skin_id = 0
@@ -82,7 +82,7 @@ mcl_skins.cycle_skin = function(player)
 	mcl_skins.set_player_skin(player, skin_id)
 end
 
-mcl_skins.set_player_skin = function(player, skin_id)
+function mcl_skins.set_player_skin(player, skin_id)
 	if not player then
 		return false
 	end
@@ -124,7 +124,7 @@ mcl_skins.set_player_skin = function(player, skin_id)
 	return true
 end
 
-mcl_skins.update_player_skin = function(player)
+function mcl_skins.update_player_skin(player)
 	if not player then
 		return
 	end
@@ -134,7 +134,6 @@ end
 
 -- load player skin on join
 minetest.register_on_joinplayer(function(player)
-
 	local name = player:get_player_name()
 	local skin_id = player:get_meta():get_string("mcl_skins:skin_id")
 	local set_skin
@@ -156,7 +155,7 @@ end)
 
 mcl_skins.registered_on_set_skins = {}
 
-mcl_skins.register_on_set_skin = function(func)
+function mcl_skins.register_on_set_skin(func)
 	table.insert(mcl_skins.registered_on_set_skins, func)
 end
 
@@ -231,7 +230,7 @@ minetest.register_on_player_receive_fields(function(player, formname, fields)
 	end
 end)
 
-mcl_skins.show_formspec = function(playername)
+function mcl_skins.show_formspec(playername)
 	local formspec = "size[7,8.5]"
 
 	formspec = formspec .. "label[2,2;" .. minetest.formspec_escape(minetest.colorize("#383838", S("Select player skin:"))) .. "]"

mods/PLAYER/mcl_sprint/init.lua

@@ -16,7 +16,7 @@ local players = {}
 
 -- Returns true if the player with the given name is sprinting, false if not.
 -- Returns nil if player does not exist.
-mcl_sprint.is_sprinting = function(playername)
+function mcl_sprint.is_sprinting(playername)
 	if players[playername] then
 		return players[playername].sprinting
 	else