First pass on `mcl_structures` (there are still issues I can't resolve)

- use new vectors
- comment unused functions and variables (translator, etc)
- no longer redifine variables in a confusible way
- add (very) basic type annotations
- simplify some parts of the code
- make /spawnstruct command always return boolean + output instead of chant_send_player
- simplify /spawnstruct command code

mods/MAPGEN/mcl_structures/api.lua

@@ -1,9 +1,7 @@
 mcl_structures.registered_structures = {}
 
 local place_queue = {}
-local disabled_structures = minetest.settings:get("mcl_disabled_structures")
-if disabled_structures then	disabled_structures = disabled_structures:split(",")
-else disabled_structures = {} end
+local disabled_structures = minetest.settings:get("mcl_disabled_structures"):split(",")
 
 local peaceful = minetest.settings:get_bool("only_peaceful_mobs", false)
 local mob_cap_player = tonumber(minetest.settings:get("mcl_mob_cap_player")) or 75
@@ -13,11 +11,13 @@ local logging = minetest.settings:get_bool("mcl_logging_structures",true)
 
 local mg_name = minetest.get_mapgen_setting("mg_name")
 
+local modpath = minetest.get_modpath("mcl_structures")
+
 local rotations = {
 	"0",
 	"90",
 	"180",
-	"270"
+	"270",
 }
 
 function mcl_structures.is_disabled(structname)
@@ -26,17 +26,21 @@ end
 
 local function ecb_place(blockpos, action, calls_remaining, param)
 	if calls_remaining >= 1 then return end
-	minetest.place_schematic(param.pos, param.schematic, param.rotation, param.replacements, param.force_placement, param.flags)
+	minetest.place_schematic(param.pos, param.schematic, param.rotation, param.replacements, param.force_placement,
+		param.flags)
 	if param.after_placement_callback and param.p1 and param.p2 then
 		param.after_placement_callback(param.p1, param.p2, param.size, param.rotation, param.pr, param.callback_param)
 	end
 end
 
-function mcl_structures.place_schematic(pos, schematic, rotation, replacements, force_placement, flags, after_placement_callback, pr, callback_param)
+function mcl_structures.place_schematic(pos, schematic, rotation, replacements, force_placement, flags,
+                                        after_placement_callback, pr, callback_param)
 	if type(schematic) ~= "table" and not mcl_util.file_exists(schematic) then
 		minetest.log("warning", "[mcl_structures] schematic file " .. tostring(schematic) .. " does not exist.")
-		return end
-	local s = loadstring(minetest.serialize_schematic(schematic, "lua", {lua_use_comments = false, lua_num_indent_spaces = 0}) .. " return schematic")()
+		return
+	end
+	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
@@ -50,23 +54,32 @@ function mcl_structures.place_schematic(pos, schematic, rotation, replacements,
 				x, z = z, x
 			end
 		end
-		local p1 = {x=pos.x    , y=pos.y           , z=pos.z    }
-		local p2 = {x=pos.x+x-1, y=pos.y+s.size.y-1, z=pos.z+z-1}
-		minetest.log("verbose", "[mcl_structures] size=" ..minetest.pos_to_string(s.size) .. ", rotation=" .. tostring(rotation) .. ", emerge from "..minetest.pos_to_string(p1) .. " to " .. minetest.pos_to_string(p2))
-		local param = {pos=vector.new(pos), schematic=s, rotation=rotation, replacements=replacements, force_placement=force_placement, flags=flags, p1=p1, p2=p2, after_placement_callback = after_placement_callback, size=vector.new(s.size), pr=pr, callback_param=callback_param}
+		local p1 = vector.copy(pos)
+		local p2 = vector.offset(pos, x - 1, s.size.y - 1, z - 1)
+		minetest.log("verbose",
+			"[mcl_structures] size=" ..
+			minetest.pos_to_string(s.size) ..
+			", rotation=" ..
+			tostring(rotation) .. ", emerge from " .. minetest.pos_to_string(p1) .. " to " .. minetest.pos_to_string(p2))
+		local param = { pos = vector.copy(pos), schematic = s, rotation = rotation, replacements = replacements,
+			force_placement = force_placement, flags = flags, p1 = p1, p2 = p2,
+			after_placement_callback = after_placement_callback, size = vector.copy(s.size), pr = pr,
+			callback_param = callback_param }
 		minetest.emerge_area(p1, p2, ecb_place, param)
 		return true
 	end
 end
 
-function mcl_structures.get_struct(file)
-	local localfile = modpath.."/schematics/"..file
+function mcl_structures.get_struct(filename)
+	local localfile = modpath .. "/schematics/" .. filename
 	local file, errorload = io.open(localfile, "rb")
 	if errorload then
 		minetest.log("error", "[mcl_structures] Could not open this struct: " .. localfile)
 		return nil
 	end
 
+	assert(file)
+
 	local allnode = file:read("*a")
 	file:close()
 
@@ -75,6 +88,7 @@ end
 
 -- Call on_construct on pos.
 -- Useful to init chests from formspec.
+---@param pos Vector
 local function init_node_construct(pos)
 	local node = minetest.get_node(pos)
 	local def = minetest.registered_nodes[node.name]
@@ -84,8 +98,13 @@ local function init_node_construct(pos)
 	end
 	return false
 end
+
 mcl_structures.init_node_construct = init_node_construct
 
+---@param p1 Vector
+---@param p2 Vector
+---@param loot table
+---@param pr PseudoRandom
 function mcl_structures.fill_chests(p1, p2, loot, pr)
 	for it, lt in pairs(loot) do
 		local nodes = minetest.find_nodes_in_area(p1, p2, it)
@@ -99,6 +118,9 @@ function mcl_structures.fill_chests(p1,p2,loot,pr)
 	end
 end
 
+---@param pos Vector
+---@param def table
+---@param pr PseudoRandom
 local function generate_loot(pos, def, pr)
 	local hl = def.sidelen
 	local p1 = vector.offset(pos, -hl, -hl, -hl)
@@ -106,6 +128,9 @@ local function generate_loot(pos, def, pr)
 	if def.loot then mcl_structures.fill_chests(p1, p2, def.loot, pr) end
 end
 
+---@param p1 Vector
+---@param p2 Vector
+---@param nodes string[]
 function mcl_structures.construct_nodes(p1, p2, nodes)
 	local nn = minetest.find_nodes_in_area(p1, p2, nodes)
 	for _, p in pairs(nn) do
@@ -113,11 +138,19 @@ function mcl_structures.construct_nodes(p1,p2,nodes)
 	end
 end
 
+---@param pos Vector
+---@param def table
+---@param pr PseudoRandom
 local function construct_nodes(pos, def, pr)
-	return mcl_structures.construct_nodes(vector.offset(pos,-def.sidelen/2,0,-def.sidelen/2),vector.offset(pos,def.sidelen/2,def.sidelen,def.sidelen/2),def.construct_nodes)
+	return mcl_structures.construct_nodes(
+		vector.offset(pos, -def.sidelen / 2, 0, -def.sidelen / 2),
+		vector.offset(pos, def.sidelen / 2, def.sidelen, def.sidelen / 2),
+		def.construct_nodes
+	)
 end
 
-
+---@param pp Vector[]
+---@return integer
 function mcl_structures.find_lowest_y(pp)
 	local y = 31000
 	for _, p in pairs(pp) do
@@ -126,6 +159,8 @@ function mcl_structures.find_lowest_y(pp)
 	return y
 end
 
+---@param pp Vector[]
+---@return integer
 function mcl_structures.find_highest_y(pp)
 	local y = -31000
 	for _, p in pairs(pp) do
@@ -134,12 +169,18 @@ function mcl_structures.find_highest_y(pp)
 	return y
 end
 
+---@param nn Vector[]
+---@param pos Vector
+---@param plane? boolean
+---@param amnt? integer
+---@return Vector[]
 local function smooth_cube(nn, pos, plane, amnt)
 	local r = {}
-	local amnt = amnt or 9
+	amnt = amnt or 9
 	table.sort(nn, function(a, b)
 		if false or plane then
-			return vector.distance(vector.new(pos.x,0,pos.z), vector.new(a.x,0,a.z)) < vector.distance(vector.new(pos.x,0,pos.z), vector.new(b.x,0,b.z))
+			return vector.distance(vector.new(pos.x, 0, pos.z), vector.new(a.x, 0, a.z)) <
+				vector.distance(vector.new(pos.x, 0, pos.z), vector.new(b.x, 0, b.z))
 		else
 			return vector.distance(pos, a) < vector.distance(pos, b)
 		end
@@ -148,24 +189,32 @@ local function smooth_cube(nn,pos,plane,amnt)
 	return r
 end
 
+---@param pos Vector
+---@param nn Vector[]
+---@param gn string
+---@return integer
 local function find_ground(pos, nn, gn)
 	local r = 0
 	for _, v in pairs(nn) do
-		local p=vector.new(v)
+		local p = vector.copy(v)
 		repeat
 			local n = minetest.get_node(p).name
 			p = vector.offset(p, 0, -1, 0)
 		until not n or n == "mcl_core:bedrock" or n == "ignore" or n == gn
 		--minetest.log(tostring(pos.y - p.y))
-		if pos.y - p.y > r then r = pos.y - p.y end
+		if pos.y - p.y > r then
+			r = pos.y - p.y
+		end
 	end
 	return r
 end
 
 local function get_foundation_nodes(ground_p1, ground_p2, pos, sidelen, node_stone)
-	local replace = {"air","group:liquid","mcl_core:snow","group:tree","group:leaves","group:plant","grass_block","group:dirt"}
+	local replace = { "air", "group:liquid", "mcl_core:snow", "group:tree", "group:leaves", "group:plant", "grass_block",
+		"group:dirt" }
 	local depth = find_ground(pos, minetest.find_nodes_in_area(ground_p1, ground_p2, replace), node_stone)
-	local nn = smooth_cube(minetest.find_nodes_in_area(vector.offset(ground_p1,0,-1,0),vector.offset(ground_p2,0,-depth,0),replace),vector.offset(pos,0,-depth,0),true,sidelen * 64)
+	local nn = smooth_cube(minetest.find_nodes_in_area(vector.offset(ground_p1, 0, -1, 0),
+		vector.offset(ground_p2, 0, -depth, 0), replace), vector.offset(pos, 0, -depth, 0), true, sidelen * 64)
 	local stone = {}
 	local filler = {}
 	local top = {}
@@ -207,7 +256,7 @@ local function foundation(ground_p1,ground_p2,pos,sidelen)
 	end
 
 	local stone, filler, top, dust = get_foundation_nodes(ground_p1, ground_p2, pos, sidelen, node_stone)
-	minetest.bulk_set_node(top,{name=node_top},node_stone)
+	minetest.bulk_set_node(top, { name = node_top })
 
 	if node_dust then
 		minetest.bulk_set_node(dust, { name = node_dust })
@@ -216,6 +265,7 @@ local function foundation(ground_p1,ground_p2,pos,sidelen)
 	minetest.bulk_set_node(stone, { name = node_stone })
 end
 
+--[[
 local function process_queue()
 	if #place_queue < 1 then return end
 	local s = table.remove(place_queue)
@@ -226,6 +276,7 @@ local function process_queue()
 	end, s.pr)
 	minetest.after(0.5, process_queue)
 end
+]]
 
 function mcl_structures.spawn_mobs(mob, spawnon, p1, p2, pr, n, water)
 	n = n or 1
@@ -270,10 +321,12 @@ function mcl_structures.place_structure(pos, def, pr, blockseed, rot)
 		local solid = minetest.find_nodes_in_area(ground_p1, ground_p2, { "group:solid" })
 		if #solid < (def.sidelen * def.sidelen) then
 			if def.make_foundation then
-				foundation(vector.offset(pos,-def.sidelen/2 - 3,-1,-def.sidelen/2 - 3),vector.offset(pos,def.sidelen/2 + 3,-1,def.sidelen/2 + 3),pos,def.sidelen)
+				foundation(vector.offset(pos, -def.sidelen / 2 - 3, -1, -def.sidelen / 2 - 3),
+					vector.offset(pos, def.sidelen / 2 + 3, -1, def.sidelen / 2 + 3), pos, def.sidelen)
 			else
 				if log_enabled then
-					minetest.log("warning","[mcl_structures] "..def.name.." at "..minetest.pos_to_string(pp).." not placed. No solid ground.")
+					minetest.log("warning",
+						"[mcl_structures] " .. def.name .. " at " .. minetest.pos_to_string(pp) .. " not placed. No solid ground.")
 				end
 				return false
 			end
@@ -281,7 +334,8 @@ function mcl_structures.place_structure(pos, def, pr, blockseed, rot)
 	end
 	if def.on_place and not def.on_place(pos, def, pr, blockseed) then
 		if log_enabled then
-			minetest.log("warning","[mcl_structures] "..def.name.." at "..minetest.pos_to_string(pp).." not placed. Conditions not satisfied.")
+			minetest.log("warning",
+				"[mcl_structures] " .. def.name .. " at " .. minetest.pos_to_string(pp) .. " not placed. Conditions not satisfied.")
 		end
 		return false
 	end
@@ -291,16 +345,17 @@ function mcl_structures.place_structure(pos, def, pr, blockseed, rot)
 		local file = def.filenames[r]
 		if file then
 			local rot = rotations[pr:next(1, #rotations)]
-			local ap = function(pos,def,pr,blockseed) end
+			local ap = function(_, _, _, _) end
 
 			if def.daughters then
-				ap = function(pos,def,pr,blockseed)
+				ap = function(pos, def, pr, _)
 					for _, d in pairs(def.daughters) do
 						local p = vector.add(pos, d.pos)
 						local rot = d.rot or 0
-						mcl_structures.place_schematic(p, d.files[pr:next(1,#d.files)], rot, nil, true, "place_center_x,place_center_z",function()
-							if def.loot then generate_loot(pp,def,pr,blockseed) end
-							if def.construct_nodes then construct_nodes(pp,def,pr,blockseed) end
+						mcl_structures.place_schematic(p, d.files[pr:next(1, #d.files)], rot, nil, true, "place_center_x,place_center_z",
+							function()
+								if def.loot then generate_loot(pp, def, pr) end
+								if def.construct_nodes then construct_nodes(pp, def, pr) end
 								if def.after_place then
 									def.after_place(pos, def, pr)
 								end
@@ -310,12 +365,13 @@ function mcl_structures.place_structure(pos, def, pr, blockseed, rot)
 			elseif def.after_place then
 				ap = def.after_place
 			end
-			mcl_structures.place_schematic(pp, file, rot,  def.replacements, true, "place_center_x,place_center_z",function(p1, p2, size, rotation)
+			mcl_structures.place_schematic(pp, file, rot, def.replacements, true, "place_center_x,place_center_z",
+				function(p1, p2, size, rotation)
 					if not def.daughters then
-					if def.loot then generate_loot(pp,def,pr,blockseed) end
-					if def.construct_nodes then construct_nodes(pp,def,pr,blockseed) end
+						if def.loot then generate_loot(pp, def, pr) end
+						if def.construct_nodes then construct_nodes(pp, def, pr) end
 					end
-				return ap(pp,def,pr,blockseed,p1,p2,size,rotation)
+					return ap(pp, def, pr, blockseed)
 				end, pr)
 			if log_enabled then
 				minetest.log("action", "[mcl_structures] " .. def.name .. " placed at " .. minetest.pos_to_string(pp))
@@ -324,8 +380,8 @@ function mcl_structures.place_structure(pos, def, pr, blockseed, rot)
 		end
 	elseif def.place_func and def.place_func(pp, def, pr, blockseed) then
 		if not def.after_place or (def.after_place and def.after_place(pp, def, pr, blockseed)) then
-			if def.loot then generate_loot(pp,def,pr,blockseed) end
-			if def.construct_nodes then construct_nodes(pp,def,pr,blockseed) end
+			if def.loot then generate_loot(pp, def, pr) end
+			if def.construct_nodes then construct_nodes(pp, def, pr) end
 			if log_enabled then
 				minetest.log("action", "[mcl_structures] " .. def.name .. " placed at " .. minetest.pos_to_string(pp))
 			end
@@ -366,7 +422,8 @@ function mcl_structures.register_structure(name,def,nospawn) --nospawn means it
 					y_max = def.y_max,
 					y_min = def.y_min
 				})
-				minetest.register_node(":"..structblock, {drawtype="airlike", walkable = false, pointable = false,groups = sbgroups,sunlight_propagates = true,})
+				minetest.register_node(":" .. structblock,
+					{ drawtype = "airlike", walkable = false, pointable = false, groups = sbgroups, sunlight_propagates = true, })
 				def.structblock = structblock
 				def.deco_id = minetest.get_decoration_id("mcl_structures:deco_" .. name)
 				minetest.set_gen_notify({ decoration = true }, { def.deco_id })

mods/MAPGEN/mcl_structures/desert_temple.lua

@@ -1,7 +1,9 @@
 local modname = minetest.get_current_modname()
-local S = minetest.get_translator(modname)
 local modpath = minetest.get_modpath(modname)
 
+---@param pos Vector
+---@param def table
+---@param pr PseudoRandom
 local function temple_placement_callback(pos, def, pr)
 	local hl = def.sidelen / 2
 	local p1 = vector.offset(pos, -hl, -hl, -hl)
@@ -9,10 +11,10 @@ local function temple_placement_callback(pos,def, pr)
 	-- Delete cacti leftovers:
 	local cactus_nodes = minetest.find_nodes_in_area_under_air(p1, p2, "mcl_core:cactus")
 	if cactus_nodes and #cactus_nodes > 0 then
-		for _, pos in pairs(cactus_nodes) do
-			local node_below = minetest.get_node({x=pos.x, y=pos.y-1, z=pos.z})
+		for _, cpos in pairs(cactus_nodes) do
+			local node_below = minetest.get_node(vector.offset(cpos, 0, -1, 0))
 			if node_below and node_below.name == "mcl_core:sandstone" then
-				minetest.swap_node(pos, {name="air"})
+				minetest.swap_node(cpos, { name = "air" })
 			end
 		end
 	end
@@ -81,6 +83,7 @@ mcl_structures.register_structure("desert_temple",{
 					{ itemstring = "mcl_core:sand", weight = 10, amount_min = 1, amount_max = 8 },
 					{ itemstring = "mcl_mobitems:string", weight = 10, amount_min = 1, amount_max = 8 },
 				}
-		}}
+			}
+		}
 	}
 })

mods/MAPGEN/mcl_structures/end_city.lua

@@ -1,5 +1,4 @@
 local modname = minetest.get_current_modname()
-local S = minetest.get_translator(modname)
 local modpath = minetest.get_modpath(modname)
 
 local spawnon = { "mcl_end:purpur_block" }
@@ -28,7 +27,8 @@ mcl_structures.register_structure("end_shipwreck",{
 	filenames = {
 		modpath .. "/schematics/mcl_structures_end_shipwreck_1.mts",
 	},
-	construct_nodes = {"mcl_chests:ender_chest_small","mcl_chests:ender_chest","mcl_brewing:stand_000","mcl_chests:violet_shulker_box_small"},
+	construct_nodes = { "mcl_chests:ender_chest_small", "mcl_chests:ender_chest", "mcl_brewing:stand_000",
+		"mcl_chests:violet_shulker_box_small" },
 	after_place = function(pos, def, pr)
 		local fr = minetest.find_node_near(pos, def.sidelen, { "mcl_itemframes:item_frame" })
 		if fr then
@@ -61,20 +61,34 @@ mcl_structures.register_structure("end_shipwreck",{
 				{ itemstring = "mcl_books:book", weight = 1, func = function(stack, pr)
 					mcl_enchanting.enchant_uniform_randomly(stack, { "soul_speed" }, pr)
 				end },
-				{ itemstring = "mcl_tools:pick_iron_enchanted", weight = 3,func = function(stack, pr) mcl_enchanting.enchant_uniform_randomly(stack, {"soul_speed"}, pr) end },
-				{ itemstring = "mcl_tools:shovel_iron_enchanted", weight = 3,func = function(stack, pr) mcl_enchanting.enchant_uniform_randomly(stack, {"soul_speed"}, pr) end },
-				{ itemstring = "mcl_tools:sword_iron_enchanted", weight = 3,func = function(stack, pr) mcl_enchanting.enchant_uniform_randomly(stack, {"soul_speed"}, pr) end },
-				{ itemstring = "mcl_armor:helmet_iron_enchanted", weight = 3,func = function(stack, pr) mcl_enchanting.enchant_uniform_randomly(stack, {"soul_speed"}, pr) end },
-				{ itemstring = "mcl_armor:chestplate_iron_enchanted", weight = 3,func = function(stack, pr) mcl_enchanting.enchant_uniform_randomly(stack, {"soul_speed"}, pr) end },
-				{ itemstring = "mcl_armor:leggings_iron_enchanted", weight = 3,func = function(stack, pr) mcl_enchanting.enchant_uniform_randomly(stack, {"soul_speed"}, pr) end },
-				{ itemstring = "mcl_armor:boots_iron_enchanted", weight = 3,func = function(stack, pr) mcl_enchanting.enchant_uniform_randomly(stack, {"soul_speed"}, pr) end },
-				{ itemstring = "mcl_tools:pick_diamond_enchanted", weight = 3,func = function(stack, pr) mcl_enchanting.enchant_uniform_randomly(stack, {"soul_speed"}, pr) end },
-				{ itemstring = "mcl_tools:shovel_diamond_enchanted", weight = 3,func = function(stack, pr) mcl_enchanting.enchant_uniform_randomly(stack, {"soul_speed"}, pr) end },
-				{ itemstring = "mcl_tools:sword_diamond_enchanted", weight = 3,func = function(stack, pr) mcl_enchanting.enchant_uniform_randomly(stack, {"soul_speed"}, pr) end },
-				{ itemstring = "mcl_armor:helmet_diamond_enchanted", weight = 3,func = function(stack, pr) mcl_enchanting.enchant_uniform_randomly(stack, {"soul_speed"}, pr) end },
-				{ itemstring = "mcl_armor:chestplate_diamond_enchanted", weight = 3,func = function(stack, pr) mcl_enchanting.enchant_uniform_randomly(stack, {"soul_speed"}, pr) end },
-				{ itemstring = "mcl_armor:leggings_diamond_enchanted", weight = 3,func = function(stack, pr) mcl_enchanting.enchant_uniform_randomly(stack, {"soul_speed"}, pr) end },
-				{ itemstring = "mcl_armor:boots_diamond_enchanted", weight = 3,func = function(stack, pr) mcl_enchanting.enchant_uniform_randomly(stack, {"soul_speed"}, pr) end },
+				{ itemstring = "mcl_tools:pick_iron_enchanted", weight = 3,
+					func = function(stack, pr) mcl_enchanting.enchant_uniform_randomly(stack, { "soul_speed" }, pr) end },
+				{ itemstring = "mcl_tools:shovel_iron_enchanted", weight = 3,
+					func = function(stack, pr) mcl_enchanting.enchant_uniform_randomly(stack, { "soul_speed" }, pr) end },
+				{ itemstring = "mcl_tools:sword_iron_enchanted", weight = 3,
+					func = function(stack, pr) mcl_enchanting.enchant_uniform_randomly(stack, { "soul_speed" }, pr) end },
+				{ itemstring = "mcl_armor:helmet_iron_enchanted", weight = 3,
+					func = function(stack, pr) mcl_enchanting.enchant_uniform_randomly(stack, { "soul_speed" }, pr) end },
+				{ itemstring = "mcl_armor:chestplate_iron_enchanted", weight = 3,
+					func = function(stack, pr) mcl_enchanting.enchant_uniform_randomly(stack, { "soul_speed" }, pr) end },
+				{ itemstring = "mcl_armor:leggings_iron_enchanted", weight = 3,
+					func = function(stack, pr) mcl_enchanting.enchant_uniform_randomly(stack, { "soul_speed" }, pr) end },
+				{ itemstring = "mcl_armor:boots_iron_enchanted", weight = 3,
+					func = function(stack, pr) mcl_enchanting.enchant_uniform_randomly(stack, { "soul_speed" }, pr) end },
+				{ itemstring = "mcl_tools:pick_diamond_enchanted", weight = 3,
+					func = function(stack, pr) mcl_enchanting.enchant_uniform_randomly(stack, { "soul_speed" }, pr) end },
+				{ itemstring = "mcl_tools:shovel_diamond_enchanted", weight = 3,
+					func = function(stack, pr) mcl_enchanting.enchant_uniform_randomly(stack, { "soul_speed" }, pr) end },
+				{ itemstring = "mcl_tools:sword_diamond_enchanted", weight = 3,
+					func = function(stack, pr) mcl_enchanting.enchant_uniform_randomly(stack, { "soul_speed" }, pr) end },
+				{ itemstring = "mcl_armor:helmet_diamond_enchanted", weight = 3,
+					func = function(stack, pr) mcl_enchanting.enchant_uniform_randomly(stack, { "soul_speed" }, pr) end },
+				{ itemstring = "mcl_armor:chestplate_diamond_enchanted", weight = 3,
+					func = function(stack, pr) mcl_enchanting.enchant_uniform_randomly(stack, { "soul_speed" }, pr) end },
+				{ itemstring = "mcl_armor:leggings_diamond_enchanted", weight = 3,
+					func = function(stack, pr) mcl_enchanting.enchant_uniform_randomly(stack, { "soul_speed" }, pr) end },
+				{ itemstring = "mcl_armor:boots_diamond_enchanted", weight = 3,
+					func = function(stack, pr) mcl_enchanting.enchant_uniform_randomly(stack, { "soul_speed" }, pr) end },
 				{ itemstring = "mcl_core:emerald", weight = 2, amount_min = 1, amount_max = 3 },
 				{ itemstring = "mcl_mobitems:iron_horse_armor", weight = 1, },
 				{ itemstring = "mcl_mobitems:gold_horse_armor", weight = 1, },
@@ -99,7 +113,8 @@ mcl_structures.register_structure("end_boat",{
 		modpath .. "/schematics/mcl_structures_end_boat.mts",
 	},
 	after_place = spawn_shulkers,
-	construct_nodes = {"mcl_chests:ender_chest_small","mcl_chests:ender_chest","mcl_brewing:stand_000","mcl_chests:violet_shulker_box_small"},
+	construct_nodes = { "mcl_chests:ender_chest_small", "mcl_chests:ender_chest", "mcl_brewing:stand_000",
+		"mcl_chests:violet_shulker_box_small" },
 	loot = {
 		["mcl_chests:chest_small"] = { {
 			stacks_min = 2,
@@ -112,18 +127,30 @@ mcl_structures.register_structure("end_boat",{
 				{ itemstring = "mcl_core:diamond", weight = 3, amount_min = 2, amount_max = 7 },
 				{ itemstring = "mcl_mobitems:saddle", weight = 3, },
 				{ itemstring = "mcl_core:emerald", weight = 2, amount_min = 1, amount_max = 3 },
-				{ itemstring = "mcl_tools:pick_iron_enchanted", weight = 3,func = function(stack, pr) mcl_enchanting.enchant_uniform_randomly(stack, {"soul_speed"}, pr) end },
-				{ itemstring = "mcl_tools:shovel_iron_enchanted", weight = 3,func = function(stack, pr) mcl_enchanting.enchant_uniform_randomly(stack, {"soul_speed"}, pr) end },
-				{ itemstring = "mcl_tools:sword_iron_enchanted", weight = 3,func = function(stack, pr) mcl_enchanting.enchant_uniform_randomly(stack, {"soul_speed"}, pr) end },
-				{ itemstring = "mcl_armor:helmet_iron_enchanted", weight = 3,func = function(stack, pr) mcl_enchanting.enchant_uniform_randomly(stack, {"soul_speed"}, pr) end },
-				{ itemstring = "mcl_armor:chestplate_iron_enchanted", weight = 3,func = function(stack, pr) mcl_enchanting.enchant_uniform_randomly(stack, {"soul_speed"}, pr) end },
-				{ itemstring = "mcl_armor:leggings_iron_enchanted", weight = 3,func = function(stack, pr) mcl_enchanting.enchant_uniform_randomly(stack, {"soul_speed"}, pr) end },
-				{ itemstring = "mcl_armor:boots_iron_enchanted", weight = 3,func = function(stack, pr) mcl_enchanting.enchant_uniform_randomly(stack, {"soul_speed"}, pr) end },
-				{ itemstring = "mcl_tools:pick_diamond_enchanted", weight = 3,func = function(stack, pr) mcl_enchanting.enchant_uniform_randomly(stack, {"soul_speed"}, pr) end },
-				{ itemstring = "mcl_tools:shovel_diamond_enchanted", weight = 3,func = function(stack, pr) mcl_enchanting.enchant_uniform_randomly(stack, {"soul_speed"}, pr) end },
-				{ itemstring = "mcl_armor:helmet_diamond_enchanted", weight = 3,func = function(stack, pr) mcl_enchanting.enchant_uniform_randomly(stack, {"soul_speed"}, pr) end },
-				{ itemstring = "mcl_armor:leggings_diamond_enchanted", weight = 3,func = function(stack, pr) mcl_enchanting.enchant_uniform_randomly(stack, {"soul_speed"}, pr) end },
-				{ itemstring = "mcl_armor:boots_diamond_enchanted", weight = 3,func = function(stack, pr) mcl_enchanting.enchant_uniform_randomly(stack, {"soul_speed"}, pr) end },
+				{ itemstring = "mcl_tools:pick_iron_enchanted", weight = 3,
+					func = function(stack, pr) mcl_enchanting.enchant_uniform_randomly(stack, { "soul_speed" }, pr) end },
+				{ itemstring = "mcl_tools:shovel_iron_enchanted", weight = 3,
+					func = function(stack, pr) mcl_enchanting.enchant_uniform_randomly(stack, { "soul_speed" }, pr) end },
+				{ itemstring = "mcl_tools:sword_iron_enchanted", weight = 3,
+					func = function(stack, pr) mcl_enchanting.enchant_uniform_randomly(stack, { "soul_speed" }, pr) end },
+				{ itemstring = "mcl_armor:helmet_iron_enchanted", weight = 3,
+					func = function(stack, pr) mcl_enchanting.enchant_uniform_randomly(stack, { "soul_speed" }, pr) end },
+				{ itemstring = "mcl_armor:chestplate_iron_enchanted", weight = 3,
+					func = function(stack, pr) mcl_enchanting.enchant_uniform_randomly(stack, { "soul_speed" }, pr) end },
+				{ itemstring = "mcl_armor:leggings_iron_enchanted", weight = 3,
+					func = function(stack, pr) mcl_enchanting.enchant_uniform_randomly(stack, { "soul_speed" }, pr) end },
+				{ itemstring = "mcl_armor:boots_iron_enchanted", weight = 3,
+					func = function(stack, pr) mcl_enchanting.enchant_uniform_randomly(stack, { "soul_speed" }, pr) end },
+				{ itemstring = "mcl_tools:pick_diamond_enchanted", weight = 3,
+					func = function(stack, pr) mcl_enchanting.enchant_uniform_randomly(stack, { "soul_speed" }, pr) end },
+				{ itemstring = "mcl_tools:shovel_diamond_enchanted", weight = 3,
+					func = function(stack, pr) mcl_enchanting.enchant_uniform_randomly(stack, { "soul_speed" }, pr) end },
+				{ itemstring = "mcl_armor:helmet_diamond_enchanted", weight = 3,
+					func = function(stack, pr) mcl_enchanting.enchant_uniform_randomly(stack, { "soul_speed" }, pr) end },
+				{ itemstring = "mcl_armor:leggings_diamond_enchanted", weight = 3,
+					func = function(stack, pr) mcl_enchanting.enchant_uniform_randomly(stack, { "soul_speed" }, pr) end },
+				{ itemstring = "mcl_armor:boots_diamond_enchanted", weight = 3,
+					func = function(stack, pr) mcl_enchanting.enchant_uniform_randomly(stack, { "soul_speed" }, pr) end },
 				{ itemstring = "mcl_core:emerald", weight = 2, amount_min = 1, amount_max = 3 },
 				{ itemstring = "mcl_mobitems:iron_horse_armor", weight = 1, },
 				{ itemstring = "mcl_mobitems:gold_horse_armor", weight = 1, },

mods/MAPGEN/mcl_structures/end_spawn.lua

@@ -1,13 +1,14 @@
 local modname = minetest.get_current_modname()
-local S = minetest.get_translator(modname)
 local modpath = minetest.get_modpath(modname)
 
 
 mcl_structures.register_structure("end_spawn_obsidian_platform", {
 	static_pos = { mcl_vars.mg_end_platform_pos },
 	place_func = function(pos, def, pr)
-		local obby = minetest.find_nodes_in_area(vector.offset(pos,-2,0,-2),vector.offset(pos,2,0,2),{"air","mcl_end:end_stone"})
-		local air = minetest.find_nodes_in_area(vector.offset(pos,-2,1,-2),vector.offset(pos,2,3,2),{"air","mcl_end:end_stone"})
+		local obby = minetest.find_nodes_in_area(vector.offset(pos, -2, 0, -2), vector.offset(pos, 2, 0, 2),
+			{ "air", "mcl_end:end_stone" })
+		local air = minetest.find_nodes_in_area(vector.offset(pos, -2, 1, -2), vector.offset(pos, 2, 3, 2),
+			{ "air", "mcl_end:end_stone" })
 		minetest.bulk_set_node(obby, { name = "mcl_core:obsidian" })
 		minetest.bulk_set_node(air, { name = "air" })
 		return true
@@ -65,7 +66,8 @@ local function get_tower(p,h,tbl)
 end
 
 local function make_endspike(pos, width, height)
-	local nn = minetest.find_nodes_in_area(vector.offset(pos,-width/2,0,-width/2),vector.offset(pos,width/2,0,width/2),{"air","group:solid"})
+	local nn = minetest.find_nodes_in_area(vector.offset(pos, -width / 2, 0, -width / 2),
+		vector.offset(pos, width / 2, 0, width / 2), { "air", "group:solid" })
 	table.sort(nn, function(a, b)
 		return vector.distance(pos, a) < vector.distance(pos, b)
 	end)
@@ -77,7 +79,7 @@ local function make_endspike(pos,width,height)
 	return vector.offset(pos, 0, height, 0)
 end
 
-function make_cage(pos,width)
+local function make_cage(pos, width)
 	local nodes = {}
 	local nodes2 = {}
 	local r = math.max(1, math.floor(width / 2) - 2)
@@ -85,7 +87,9 @@ function make_cage(pos,width)
 				if x == r or x == -r or z == r or z == -r then
 					table.insert(nodes, vector.add(pos, vector.new(x, y, z)))
 				end
-	end end end
+			end
+		end
+	end
 	if xpanes then
 		minetest.bulk_set_node(nodes, { name = "xpanes:bar_flat" })
 		for _, p in pairs(nodes) do
@@ -97,7 +101,8 @@ end
 local function get_points_on_circle(pos, r, n)
 	local rt = {}
 	for i = 1, n do
-		table.insert(rt,vector.offset(pos,r * math.cos(((i-1)/n) * (2*math.pi)),0,  r* math.sin(((i-1)/n) * (2*math.pi)) ))
+		table.insert(rt, vector.offset(pos, r * math.cos(((i - 1) / n) * (2 * math.pi)), 0,
+			r * math.sin(((i - 1) / n) * (2 * math.pi))))
 	end
 	return rt
 end

mods/MAPGEN/mcl_structures/geode.lua

@@ -7,10 +7,11 @@ local adjacents = {
 	vector.new(0, -1, 0)
 }
 
+---@param pos Vector
+---@param node node
 local function set_node_no_bedrock(pos, node)
-	local n = minetest.get_node(pos)
-	if n.name == "mcl_core:bedrock" then return end
-	return minetest.set_node(pos,node)
+	if minetest.get_node(pos).name == "mcl_core:bedrock" then return end
+	minetest.set_node(pos, node)
 end
 
 local function makegeode(pos, def, pr)
@@ -43,7 +44,8 @@ local function makegeode(pos,def,pr)
 							set_node_no_bedrock(v, { name = "mcl_amethyst:budding_amethyst_block" })
 						end
 						all_amethyst = false
-					elseif an.name ~= "mcl_amethyst:amethyst_block" and an.name ~= "air" and an.name ~= "mcl_amethyst:budding_amethyst_block" then
+					elseif an.name ~= "mcl_amethyst:amethyst_block" and an.name ~= "air" and
+						an.name ~= "mcl_amethyst:budding_amethyst_block" then
 						all_amethyst = false
 					end
 				end
@@ -52,18 +54,19 @@ local function makegeode(pos,def,pr)
 		end
 
 		for _, v in pairs(calcite) do
-			for _,vv in pairs(minetest.find_nodes_in_area(vector.offset(v,-1,-1,-1),vector.offset(v,1,1,1),{"group:material_stone"})) do
+			for _, vv in pairs(minetest.find_nodes_in_area(vector.offset(v, -1, -1, -1), vector.offset(v, 1, 1, 1),
+				{ "group:material_stone" })) do
 				set_node_no_bedrock(vv, { name = "mcl_blackstone:basalt_smooth" })
 			end
 		end
 
-		for k,v in pairs(minetest.find_nodes_in_area_under_air(p1,p2,{"mcl_amethyst:amethyst_block","mcl_amethyst:budding_amethyst_block"})) do
+		for k, v in pairs(minetest.find_nodes_in_area_under_air(p1, p2,
+			{ "mcl_amethyst:amethyst_block", "mcl_amethyst:budding_amethyst_block" })) do
 			local r = pr:next(1, 50)
 			if r < 10 then
 				set_node_no_bedrock(vector.offset(v, 0, 1, 0), { name = "mcl_amethyst:amethyst_cluster", param2 = 1 })
 			end
 		end
-		return true
 	end)
 	return true
 end

mods/MAPGEN/mcl_structures/igloo.lua

@@ -1,10 +1,13 @@
 local modname = minetest.get_current_modname()
-local S = minetest.get_translator(modname)
 local modpath = minetest.get_modpath(modname)
 
+---@param pos Vector
+---@param pr PseudoRandom
+---@return boolean|nil
+---@return string
 function mcl_structures.generate_igloo_top(pos, pr)
 	-- Furnace does ot work atm because apparently meta is not set. Need a bit of help with fixing this for furnaces, bookshelves, and brewing stands.
-	local newpos = {x=pos.x,y=pos.y-2,z=pos.z}
+	local newpos = vector.offset(pos, 0, -2, 0)
 	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, nil, function()
@@ -32,6 +35,10 @@ local function spawn_mobs(p1,p2,vi,zv)
 	end
 end
 
+---@param pos Vector
+---@param orientation any
+---@param loot any
+---@param pr PseudoRandom
 function mcl_structures.generate_igloo_basement(pos, orientation, loot, pr)
 	-- TODO: Add monster eggs
 	local path = modpath .. "/schematics/mcl_structures_igloo_basement.mts"
@@ -44,6 +51,9 @@ function mcl_structures.generate_igloo_basement(pos, orientation, loot, pr)
 	end, pr)
 end
 
+---@param pos Vector
+---@param def table
+---@param pr PseudoRandom
 function mcl_structures.generate_igloo(pos, def, pr)
 	-- Place igloo
 	local success, rotation = mcl_structures.generate_igloo_top(pos, pr)
@@ -67,26 +77,26 @@ function mcl_structures.generate_igloo(pos, def, pr)
 			return success
 		end
 		local depth = pr:next(19, buffer)
-		local bpos = {x=pos.x, y=pos.y-depth, z=pos.z}
+		local bpos = vector.offset(pos, 0, -depth, 0)
 		-- trapdoor position
 		local tpos
 		local dir, tdir
 		if rotation == "0" then
-			dir = {x=-1, y=0, z=0}
-			tdir = {x=1, y=0, z=0}
-			tpos = {x=pos.x+7, y=pos.y-2, z=pos.z+3}
+			dir  = vector.new(-1, 0, 0)
+			tdir = vector.new(1, 0, 0)
+			tpos = vector.offset(pos, 7, -2, 3)
 		elseif rotation == "90" then
-			dir = {x=0, y=0, z=-1}
-			tdir = {x=0, y=0, z=-1}
-			tpos = {x=pos.x+3, y=pos.y-2, z=pos.z+1}
+			dir  = vector.new(0, 0, -1)
+			tdir = vector.new(0, 0, -1)
+			tpos = vector.offset(pos, 3, -2, 1)
 		elseif rotation == "180" then
-			dir = {x=1, y=0, z=0}
-			tdir = {x=-1, y=0, z=0}
-			tpos = {x=pos.x+1, y=pos.y-2, z=pos.z+3}
+			dir  = vector.new(1, 0, 0)
+			tdir = vector.new(-1, 0, 0)
+			tpos = vector.offset(pos, 1, -2, 3)
 		elseif rotation == "270" then
-			dir = {x=0, y=0, z=1}
-			tdir = {x=0, y=0, z=1}
-			tpos = {x=pos.x+3, y=pos.y-2, z=pos.z+7}
+			dir  = vector.new(0, 0, 1)
+			tdir = vector.new(0, 0, 1)
+			tpos = vector.offset(pos, 3, -2, 7)
 		else
 			return success
 		end
@@ -109,14 +119,15 @@ function mcl_structures.generate_igloo(pos, def, pr)
 			end
 			minetest.set_node(pos, { name = brick })
 		end
+
 		local ladder_param2 = minetest.dir_to_wallmounted(tdir)
 		local real_depth = 0
 		-- Check how deep we can actuall dig
 		for y = 1, depth - 5 do
 			real_depth = real_depth + 1
-			local node = minetest.get_node({x=tpos.x,y=tpos.y-y,z=tpos.z})
-			local def = minetest.registered_nodes[node.name]
-			if not (def and def.walkable and def.liquidtype == "none" and def.is_ground_content) then
+			local node = minetest.get_node(vector.offset(tpos, 0, -y, 0))
+			local ndef = minetest.registered_nodes[node.name]
+			if not (ndef and ndef.walkable and ndef.liquidtype == "none" and ndef.is_ground_content) then
 				bpos.y = tpos.y - y + 1
 				break
 			end
@@ -126,17 +137,17 @@ function mcl_structures.generate_igloo(pos, def, pr)
 		end
 		-- Generate ladder to basement
 		for y = 1, real_depth - 1 do
-			set_brick({x=tpos.x-1,y=tpos.y-y,z=tpos.z  })
-			set_brick({x=tpos.x+1,y=tpos.y-y,z=tpos.z  })
-			set_brick({x=tpos.x  ,y=tpos.y-y,z=tpos.z-1})
-			set_brick({x=tpos.x  ,y=tpos.y-y,z=tpos.z+1})
-			minetest.set_node({x=tpos.x,y=tpos.y-y,z=tpos.z}, {name="mcl_core:ladder", param2=ladder_param2})
+			set_brick(vector.offset(tpos, -1, -y, 0))
+			set_brick(vector.offset(tpos, 1, -y, 0))
+			set_brick(vector.offset(tpos, 0, -y, -1))
+			set_brick(vector.offset(tpos, 0, -y, 1))
+			minetest.set_node(vector.offset(tpos, 0, -y, 0), { name = "mcl_core:ladder", param2 = ladder_param2 })
 		end
 		-- Place basement
 		mcl_structures.generate_igloo_basement(bpos, rotation, def.loot, pr)
 		-- Place hidden trapdoor
-		minetest.after(5, function(tpos, dir)
-			minetest.set_node(tpos, {name="mcl_doors:trapdoor", param2=20+minetest.dir_to_facedir(dir)}) -- TODO: more reliable param2
+		minetest.after(5, function(tpos2, dir2)
+			minetest.set_node(tpos2, { name = "mcl_doors:trapdoor", param2 = 20 + minetest.dir_to_facedir(dir2) }) -- TODO: more reliable param2
 		end, tpos, dir)
 	end
 	return success

mods/MAPGEN/mcl_structures/init.lua

@@ -70,12 +70,16 @@ mcl_structures.register_structure("boulder",{
 mcl_structures.register_structure("ice_spike_small", {
 	filenames = { modpath .. "/schematics/mcl_structures_ice_spike_small.mts" },
 }, true) --is spawned as a normal decoration. this is just for /spawnstruct
+
 mcl_structures.register_structure("ice_spike_large", {
 	sidelen = 6,
 	filenames = { modpath .. "/schematics/mcl_structures_ice_spike_large.mts" },
 }, true) --is spawned as a normal decoration. this is just for /spawnstruct
 
--- Debug command
+
+---Debug command
+---@param dir Vector
+---@return '"0"'|'"90"'|'"180"'|'"270"'
 local function dir_to_rotation(dir)
 	local ax, az = math.abs(dir.x), math.abs(dir.z)
 	if ax > az then
@@ -96,33 +100,39 @@ minetest.register_chatcommand("spawnstruct", {
 	privs = { debug = true },
 	func = function(name, param)
 		local player = minetest.get_player_by_name(name)
-		if not player then return end
+
+		if not player then
+			return false, S("Player isn't online")
+		end
+
 		local pos = player:get_pos()
-		if not pos then return end
 		pos = vector.round(pos)
+
 		local dir = minetest.yaw_to_dir(player:get_look_horizontal())
+
 		local rot = dir_to_rotation(dir)
 		local pr = PseudoRandom(pos.x + pos.y + pos.z)
+
 		local errord = false
 		local message = S("Structure placed.")
+		local uknown_struct_message = S("Error: Unknown structure type. Please use “/spawnstruct <type>”.") ..
+			"\n" .. S("Use /help spawnstruct to see a list of avaiable types.")
+
 		if param == "dungeon" and mcl_dungeons and mcl_dungeons.spawn_dungeon then
 			mcl_dungeons.spawn_dungeon(pos, rot, pr)
-		elseif param == "" then
-			message = S("Error: No structure type given. Please use “/spawnstruct <type>”.")
-			errord = true
 		else
-			for n,d in pairs(mcl_structures.registered_structures) do
-				if n == param then
-					mcl_structures.place_structure(pos,d,pr,math.random(),rot)
-					return true,message
-				end
-			end
-			message = S("Error: Unknown structure type. Please use “/spawnstruct <type>”.")
+			if mcl_structures.registered_structures[param] then
+				mcl_structures.place_structure(pos, mcl_structures.registered_structures[param], pr, math.random(), rot)
+			else
+				message = uknown_struct_message
 				errord = true
 			end
-		minetest.chat_send_player(name, message)
+		end
+
 		if errord then
-			minetest.chat_send_player(name, S("Use /help spawnstruct to see a list of avaiable types."))
+			return false, message
+		else
+			return true, message
 		end
 	end
 })

mods/MAPGEN/mcl_structures/jungle_temple.lua

@@ -1,5 +1,4 @@
 local modname = minetest.get_current_modname()
-local S = minetest.get_translator(modname)
 local modpath = minetest.get_modpath(modname)
 
 mcl_structures.register_structure("jungle_temple", {

mods/MAPGEN/mcl_structures/ocean_ruins.lua

@@ -1,5 +1,4 @@
 local modname = minetest.get_current_modname()
-local S = minetest.get_translator(modname)
 local modpath = minetest.get_modpath(modname)
 
 local cold_oceans = {

mods/MAPGEN/mcl_structures/pillager_outpost.lua

@@ -1,7 +1,6 @@
 local modname = minetest.get_current_modname()
-local S = minetest.get_translator(modname)
 local modpath = minetest.get_modpath(modname)
-local peaceful = minetest.settings:get_bool("only_peaceful_mobs", false)
+--local peaceful = minetest.settings:get_bool("only_peaceful_mobs", false)
 
 local spawnon = { "mcl_core:stripped_oak", "mcl_stairs:slab_birchwood_top" }
 
@@ -58,7 +57,8 @@ mcl_structures.register_structure("pillager_outpost",{
 				items = {
 					{ itemstring = "mcl_bows:crossbow" },
 				}
-		}}
+			}
+		}
 	},
 	after_place = function(p, def, pr)
 		local p1 = vector.offset(p, -9, 0, -9)

mods/MAPGEN/mcl_structures/ruined_portal.lua

@@ -1,17 +1,22 @@
 local modname = minetest.get_current_modname()
 local modpath = minetest.get_modpath(modname)
 
+---@param b Vector[]
+---@param c integer
+---@param pr PseudoRandom
+---@return Vector[]
 local function get_replacements(b, c, pr)
 	local r = {}
 	if not b then return r end
-	for k,v in pairs(b) do
+	for _, v in pairs(b) do
 		if pr:next(1, 100) < c then table.insert(r, v) end
 	end
 	return r
 end
 
 local def = {
-	place_on = {"group:grass_block","group:dirt","mcl_core:dirt_with_grass","group:grass_block","group:sand","group:grass_block_snow","mcl_core:snow"},
+	place_on = { "group:grass_block", "group:dirt", "mcl_core:dirt_with_grass", "group:grass_block", "group:sand",
+		"group:grass_block_snow", "mcl_core:snow" },
 	fill_ratio = 0.01,
 	flags = "place_center_x, place_center_z, all_floors",
 	solid_ground = true,
@@ -77,9 +82,13 @@ local def = {
 		} }
 	}
 }
+
 mcl_structures.register_structure("ruined_portal_overworld", def)
+
 local ndef = table.copy(def)
 ndef.y_min = mcl_vars.mg_lava_nether_max + 10
 ndef.y_max = mcl_vars.mg_nether_max - 15
-ndef.place_on = {"mcl_nether:netherrack","group:soul_block","mcl_blackstone:basalt,mcl_blackstone:blackstone","mcl_crimson:crimson_nylium","mcl_crimson:warped_nylium"},
+ndef.place_on = { "mcl_nether:netherrack", "group:soul_block", "mcl_blackstone:basalt,mcl_blackstone:blackstone",
+	"mcl_crimson:crimson_nylium", "mcl_crimson:warped_nylium" }
+
 mcl_structures.register_structure("ruined_portal_nether", ndef)

mods/MAPGEN/mcl_structures/shipwrecks.lua

@@ -2,9 +2,9 @@ local modname = minetest.get_current_modname()
 local modpath = minetest.get_modpath(modname)
 --local S = minetest.get_translator(modname)
 
-local seed = minetest.get_mapgen_setting("seed")
+--local seed = minetest.get_mapgen_setting("seed")
 local water_level = minetest.get_mapgen_setting("water_level")
-local pr = PseudoRandom(seed)
+--local pr = PseudoRandom(seed)
 
 --schematics by chmodsayshello
 local schems = {
@@ -130,13 +130,17 @@ mcl_structures.register_structure("shipwreck",{
 				{ itemstring = "mcl_mobitems:rotten_flesh", weight = 5, amount_min = 5, amount_max = 24 },
 				{ itemstring = "mcl_farming:potato_item", weight = 3, amount_min = 1, amount_max = 5 },
 				{ itemstring = "mcl_armor:helmet_leather_enchanted", weight = 3, func = function(stack, pr)
-						mcl_enchanting.enchant_uniform_randomly(stack, {"soul_speed"}) end },
+					mcl_enchanting.enchant_uniform_randomly(stack, { "soul_speed" })
+				end },
 				{ itemstring = "mcl_armor:chestplate_leather_enchanted", weight = 3, func = function(stack, pr)
-						mcl_enchanting.enchant_uniform_randomly(stack, {"soul_speed"}) end },
+					mcl_enchanting.enchant_uniform_randomly(stack, { "soul_speed" })
+				end },
 				{ itemstring = "mcl_armor:leggings_leather_enchanted", weight = 3, func = function(stack, pr)
-						mcl_enchanting.enchant_uniform_randomly(stack, {"soul_speed"}) end },
+					mcl_enchanting.enchant_uniform_randomly(stack, { "soul_speed" })
+				end },
 				{ itemstring = "mcl_armor:boots_leather_enchanted", weight = 3, func = function(stack, pr)
-						mcl_enchanting.enchant_uniform_randomly(stack, {"soul_speed"}) end },
+					mcl_enchanting.enchant_uniform_randomly(stack, { "soul_speed" })
+				end },
 				--{ itemstring = "TODO:bamboo", weight = 2, amount_min = 1, amount_max = 3 },
 				{ itemstring = "mcl_farming:pumpkin", weight = 2, amount_min = 1, amount_max = 3 },
 				{ itemstring = "mcl_tnt:tnt", weight = 1, amount_min = 1, amount_max = 2 },

mods/MAPGEN/mcl_structures/witch_hut.lua

@@ -1,5 +1,4 @@
 local modname = minetest.get_current_modname()
-local S = minetest.get_translator(modname)
 local modpath = minetest.get_modpath(modname)
 
 local peaceful = minetest.settings:get_bool("only_peaceful_mobs", false)
@@ -7,7 +6,8 @@ local peaceful = minetest.settings:get_bool("only_peaceful_mobs", false)
 local function spawn_witch(p1, p2)
 	local c = minetest.find_node_near(p1, 15, { "mcl_cauldrons:cauldron" })
 	if c then
-		local nn = minetest.find_nodes_in_area_under_air(vector.new(p1.x,c.y-1,p1.z),vector.new(p2.x,c.y-1,p2.z),{"mcl_core:sprucewood"})
+		local nn = minetest.find_nodes_in_area_under_air(vector.new(p1.x, c.y - 1, p1.z), vector.new(p2.x, c.y - 1, p2.z),
+			{ "mcl_core:sprucewood" })
 		local witch
 		if not peaceful then
 			witch = minetest.add_entity(vector.offset(nn[math.random(#nn)], 0, 1, 0), "mobs_mc:witch"):get_luaentity()
@@ -23,6 +23,9 @@ local function spawn_witch(p1,p2)
 	end
 end
 
+---@param pos Vector
+---@param def table
+---@param pr PseudoRandom
 local function hut_placement_callback(pos, def, pr)
 	local hl = def.sidelen / 2
 	local p1 = vector.offset(pos, -hl, -hl, -hl)

mods/MAPGEN/mcl_structures/woodland_mansion.lua

@@ -1,7 +1,6 @@
 local modname = minetest.get_current_modname()
-local S = minetest.get_translator(modname)
 local modpath = minetest.get_modpath(modname)
-local peaceful = minetest.settings:get_bool("only_peaceful_mobs", false)
+--local peaceful = minetest.settings:get_bool("only_peaceful_mobs", false)
 
 local spawnon = { "mcl_deepslate:deepslate", "mcl_core:birchwood", "mcl_wool:red_carpet", "mcl_wool:brown_carpet" }
 
@@ -39,7 +38,8 @@ mcl_structures.register_structure("woodland_cabin",{
 				{ itemstring = "mcl_mobitems:string", weight = 10, amount_min = 1, amount_max = 8 },
 
 				{ itemstring = "mcl_core:gold_ingot", weight = 15, amount_min = 2, amount_max = 7 },
-			}},{
+			}
+		}, {
 			stacks_min = 1,
 			stacks_max = 4,
 			items = {
@@ -53,13 +53,15 @@ mcl_structures.register_structure("woodland_cabin",{
 				{ itemstring = "mcl_core:iron_ingot", weight = 10, amount_min = 1, amount_max = 4 },
 				{ itemstring = "mcl_buckets:bucket_empty", weight = 10, amount_min = 1, amount_max = 1 },
 				{ itemstring = "mcl_core:gold_ingot", weight = 5, amount_min = 1, amount_max = 4 },
-			}},{
+			}
+		}, {
 			stacks_min = 1,
 			stacks_max = 4,
 			items = {
 				--{ itemstring = "FIXME:lead", weight = 20, amount_min = 1, amount_max = 1 },
 				{ itemstring = "mcl_mobs:nametag", weight = 2, amount_min = 1, amount_max = 3 },
-				{ itemstring = "mcl_books:book", weight = 1, func = function(stack, pr)mcl_enchanting.enchant_uniform_randomly(stack, {"soul_speed"}, pr) end },
+				{ itemstring = "mcl_books:book", weight = 1,
+					func = function(stack, pr) mcl_enchanting.enchant_uniform_randomly(stack, { "soul_speed" }, pr) end },
 				{ itemstring = "mcl_armor:chestplate_chain", weight = 1, },
 				{ itemstring = "mcl_armor:chestplate_diamond", weight = 1, },
 				{ itemstring = "mcl_core:apple_gold_enchanted", weight = 2, },