CONTRIBUTING.md

@@ -85,3 +85,12 @@ Report all bugs and missing Minecraft features here:
 We have an IRC channel! Join us on #mineclone2 in freenode.net.
 
 <ircs://irc.freenode.net:6697/#mineclone2>
+
+## Creating releases
+* Launch MineClone2 to make sure it still runs
+* Update the version number in README.md
+* Use `git tag <version number>` to tag the latest commit with the version number
+* Push to repo (don't forget `--tags`!)
+* Update ContentDB (https://content.minetest.net/packages/Wuzzy/mineclone2/)
+* Update first post in forum thread (https://forum.minetest.net/viewtopic.php?f=50&t=16407)
+* Post release announcement and changelog in forums

MISSING_ENGINE_FEATURES.md

@@ -20,7 +20,6 @@ For these features, no easy Lua workaround could be found.
 ## Interface
 - Inventory: Hold down right mouse button while holding an item stack to drop items into the slots as you move the mouse. Makes crafting MUCH faster
 - Sneak+Leftclick on crafting output crafts as many items as possible and immediately puts it into the player inventory ([issue 5211](https://github.com/minetest/minetest/issues/5211))
-- Sneak+click on inventory slot should be able to put items into additional “fallback inventories” if the first inventory is full. Required for large chests
 - Sneak+click puts items in different inventories depending on the item type (maybe group-based)? Required for sneak-clicking to armor slots
 
 ## Workaround theoretically possible
@@ -35,6 +34,7 @@ For these features, a workaround (or hack ;-)) by using Lua is theoretically pos
 - Set frequency in which players lose breath. 2 seconds are hardcoded in Minetest, in Minecraft it's 1 second
 - Set damage frequency of `damage_per_second`. In Minecraft many things damage players every half-second rather than every second
 - Possible to damage players directly when they are with the head inside. This allows to add Minecraft-like suffocation
+- Sneak+click on inventory slot should be able to put items into additional “fallback inventories” if the first inventory is full. Useful for large chests
 
 #### Nice-to-haye
 - Utility function to rotate pillar-like nodes, requiring only 3 possible orientations (X, Y, Z). Basically this is `minetest.rotate_node` but with less orientations; the purpur pillar would mess up if a mirrored rotation would be possible. This is already implemented in MCL2, See `mcl_util` for more infos

mods/CORE/mcl_explosions/init.lua

@@ -32,6 +32,10 @@ local STEP_LENGTH = 0.3
 -- How many rays to compute entity exposure to explosion
 local N_EXPOSURE_RAYS = 16
 
+-- Nodes having a blast resistance of this value or higher are treated as
+-- indestructible
+local INDESTRUCT_BLASTRES = 1000000
+
 minetest.register_on_mods_loaded(function()
 	-- Store blast resistance values by content ids to improve performance.
 	for name, def in pairs(minetest.registered_nodes) do
@@ -135,14 +139,21 @@ end
 -- strength - The strength of each ray
 -- raydirs - The directions for each ray
 -- radius - The maximum distance each ray will go
--- drop_chance - The chance that destroyed nodes will drop their items
--- fire - If true, 1/3 of destroyed nodes become fire
+-- info - Table containing information about explosion
 -- puncher - object that punches other objects (optional)
 --
+-- Values in info:
+-- drop_chance - The chance that destroyed nodes will drop their items
+-- fire - If true, 1/3 nodes become fire
+-- griefing - If true, the explosion will destroy nodes (default: true)
+-- max_blast_resistance - The explosion will treat all non-indestructible nodes
+--                        as having a blast resistance of no more than this
+--                        value
+--
 -- Note that this function has been optimized, it contains code which has been
 -- inlined to avoid function calls and unnecessary table creation. This was
 -- measured to give a significant performance increase.
-local function trace_explode(pos, strength, raydirs, radius, drop_chance, fire, puncher, creative_enabled)
+local function trace_explode(pos, strength, raydirs, radius, info, puncher)
 	local vm = minetest.get_voxel_manip()
 
 	local emin, emax = vm:read_from_map(vector.subtract(pos, radius),
@@ -164,39 +175,49 @@ local function trace_explode(pos, strength, raydirs, radius, drop_chance, fire,
 	local data = vm:get_data()
 	local destroy = {}
 
+	local drop_chance = info.drop_chance
+	local fire = info.fire
+	local max_blast_resistance = info.max_blast_resistance
+
 	-- Trace rays for environment destruction
-	for i = 1, #raydirs do
-		local rpos_x = pos.x
-		local rpos_y = pos.y
-		local rpos_z = pos.z
-		local rdir_x = raydirs[i].x
-		local rdir_y = raydirs[i].y
-		local rdir_z = raydirs[i].z
-		local rstr = (0.7 + math.random() * 0.6) * strength
+	if info.griefing then
+		for i = 1, #raydirs do
+			local rpos_x = pos.x
+			local rpos_y = pos.y
+			local rpos_z = pos.z
+			local rdir_x = raydirs[i].x
+			local rdir_y = raydirs[i].y
+			local rdir_z = raydirs[i].z
+			local rstr = (0.7 + math.random() * 0.6) * strength
 
-		for r = 0, math.ceil(radius * (1.0 / STEP_LENGTH)) do
-			local npos_x = math.floor(rpos_x + 0.5)
-			local npos_y = math.floor(rpos_y + 0.5)
-			local npos_z = math.floor(rpos_z + 0.5)
-			local idx = (npos_z - emin_z) * zstride + (npos_y - emin_y) * ystride +
-					npos_x - emin_x + 1
+			for r = 0, math.ceil(radius * (1.0 / STEP_LENGTH)) do
+				local npos_x = math.floor(rpos_x + 0.5)
+				local npos_y = math.floor(rpos_y + 0.5)
+				local npos_z = math.floor(rpos_z + 0.5)
+				local idx = (npos_z - emin_z) * zstride + (npos_y - emin_y) * ystride +
+						npos_x - emin_x + 1
 
-			local cid = data[idx]
-			local br = node_blastres[cid]
-			local hash = minetest.hash_node_position({x=npos_x, y=npos_y, z=npos_z})
+				local cid = data[idx]
+				local br = node_blastres[cid]
+				if br < INDESTRUCT_BLASTRES and br > max_blast_resistance then
+					br = max_blast_resistance
+				end
 
-			rpos_x = rpos_x + STEP_LENGTH * rdir_x
-			rpos_y = rpos_y + STEP_LENGTH * rdir_y
-			rpos_z = rpos_z + STEP_LENGTH * rdir_z
+				local hash = minetest.hash_node_position({x=npos_x, y=npos_y, z=npos_z})
 
-			rstr = rstr - 0.75 * STEP_LENGTH - (br + 0.3) * STEP_LENGTH
+				rpos_x = rpos_x + STEP_LENGTH * rdir_x
+				rpos_y = rpos_y + STEP_LENGTH * rdir_y
+				rpos_z = rpos_z + STEP_LENGTH * rdir_z
 
-			if rstr <= 0 then
-				break
-			end
+				rstr = rstr - 0.75 * STEP_LENGTH - (br + 0.3) * STEP_LENGTH
 
-			if cid ~= minetest.CONTENT_AIR and not minetest.is_protected({x = npos_x, y = npos_y, z = npos_z}, "") then
-				destroy[hash] = idx
+				if rstr <= 0 then
+					break
+				end
+
+				if cid ~= minetest.CONTENT_AIR and not minetest.is_protected({x = npos_x, y = npos_y, z = npos_z}, "") then
+					destroy[hash] = idx
+				end
 			end
 		end
 	end
@@ -327,7 +348,7 @@ local function trace_explode(pos, strength, raydirs, radius, drop_chance, fire,
 
 	-- Remove destroyed blocks and drop items
 	for hash, idx in pairs(destroy) do
-		local do_drop = not creative_enabled and math.random() <= drop_chance
+		local do_drop = math.random() <= drop_chance
 		local on_blast = node_on_blast[data[idx]]
 		local remove = true
 
@@ -377,7 +398,6 @@ local function trace_explode(pos, strength, raydirs, radius, drop_chance, fire,
 	-- Log explosion
 	minetest.log('action', 'Explosion at ' .. minetest.pos_to_string(pos) ..
 		' with strength ' .. strength .. ' and radius ' .. radius)
-
 end
 
 -- Create an explosion with strength at pos.
@@ -385,16 +405,24 @@ end
 -- Parameters:
 -- pos - The position where the explosion originates from
 -- strength - The blast strength of the explosion (a TNT explosion uses 4)
--- info - Table containing information about explosion.
+-- info - Table containing information about explosion
 -- puncher - object that is reported as source of punches/damage (optional)
 --
 -- Values in info:
 -- drop_chance - If specified becomes the drop chance of all nodes in the
---               explosion (defaults to 1.0 / strength)
--- no_sound - If true then the explosion will not play a sound
--- no_particle - If true then the explosion will not create particles
+--               explosion (default: 1.0 / strength)
+-- max_blast_resistance - If specified the explosion will treat all
+--                        non-indestructible nodes as having a blast resistance
+--                        of no more than this value
+-- sound - If true, the explosion will play a sound (default: true)
+-- particles - If true, the explosion will create particles (default: true)
 -- fire - If true, 1/3 nodes become fire (default: false)
+-- griefing - If true, the explosion will destroy nodes (default: true)
 function mcl_explosions.explode(pos, strength, info, puncher)
+	if info == nil then
+		info = {}
+	end
+
 	-- The maximum blast radius (in the air)
 	local radius = math.ceil(1.3 * strength / (0.3 * 0.75) * 0.3)
 
@@ -403,13 +431,31 @@ function mcl_explosions.explode(pos, strength, info, puncher)
 	end
 	local shape = sphere_shapes[radius]
 
-	local creative_enabled = minetest.is_creative_enabled("")
-	trace_explode(pos, strength, shape, radius, (info and info.drop_chance) or 1 / strength, info.fire == true, puncher, creative_enabled)
+	-- Default values
+	if info.drop_chance == nil then info.drop_chance = 1 / strength end
+	if info.particles == nil then info.particles = true end
+	if info.sound == nil then info.sound = true end
+	if info.fire == nil then info.fire = false end
+	if info.griefing == nil then info.griefing = true end
+	if info.max_blast_resistance == nil then
+		info.max_blast_resistance = INDESTRUCT_BLASTRES
+	end
 
-	if not (info and info.no_particle) then
+	-- For backwards compatibility
+	if info.no_particle then info.particles = false end
+	if info.no_sound then info.sound = false end
+
+	-- Dont do drops in creative mode
+	if minetest.is_creative_enabled("") then
+		info.drop_chance = 0
+	end
+
+	trace_explode(pos, strength, shape, radius, info, puncher)
+
+	if info.particles then
 		add_particles(pos, radius)
 	end
-	if not (info and info.no_sound) then
+	if info.sound then
 		minetest.sound_play("tnt_explode", {
 			pos = pos, gain = 1.0,
 			max_hear_distance = strength * 16

mods/CORE/mcl_init/init.lua

@@ -25,6 +25,7 @@ mcl_vars.inventory_header = ""
 local mg_name = minetest.get_mapgen_setting("mg_name")
 local minecraft_height_limit = 256
 local superflat = mg_name == "flat" and minetest.get_mapgen_setting("mcl_superflat_classic") == "true"
+local singlenode = mg_name == "singlenode"
 
 -- Calculate mapgen_edge_min/mapgen_edge_max
 mcl_vars.chunksize = math.max(1, tonumber(minetest.get_mapgen_setting("chunksize")) or 5)
@@ -45,7 +46,7 @@ local numcmax = math.max(math.floor((mapgen_limit_max - ccfmax) / chunk_size_in_
 mcl_vars.mapgen_edge_min = central_chunk_min_pos - numcmin * chunk_size_in_nodes
 mcl_vars.mapgen_edge_max = central_chunk_max_pos + numcmax * chunk_size_in_nodes
 
-if not superflat then
+if not superflat and not singlenode then
 	-- Normal mode
 	--[[ Realm stacking (h is for height)
 	- Overworld (h>=256)
@@ -66,6 +67,14 @@ if not superflat then
 	mcl_vars.mg_lava = true
 	mcl_vars.mg_bedrock_is_rough = true
 
+elseif singlenode then
+	mcl_vars.mg_overworld_min = -66
+	mcl_vars.mg_overworld_max_official = mcl_vars.mg_overworld_min + minecraft_height_limit
+	mcl_vars.mg_bedrock_overworld_min = mcl_vars.mg_overworld_min
+	mcl_vars.mg_bedrock_overworld_max = mcl_vars.mg_bedrock_overworld_min
+	mcl_vars.mg_lava = false
+	mcl_vars.mg_lava_overworld_max = mcl_vars.mg_overworld_min
+	mcl_vars.mg_bedrock_is_rough = false
 else
 	-- Classic superflat
 	local ground = minetest.get_mapgen_setting("mgflat_ground_level")
@@ -128,3 +137,4 @@ minetest.craftitemdef_default.stack_max = 64
 
 -- Set random seed for all other mods (Remember to make sure no other mod calls this function)
 math.randomseed(os.time())
+

mods/CORE/mcl_util/init.lua

@@ -395,4 +395,13 @@ function mcl_util.generate_on_place_plant_function(condition)
 	end
 end
 
-
+-- adjust the y level of an object to the center of its collisionbox
+-- used to get the origin position of entity explosions
+function mcl_util.get_object_center(obj)
+	local collisionbox = obj:get_properties().collisionbox
+	local pos = obj:get_pos()
+	local ymin = collisionbox[2]
+	local ymax = collisionbox[5]
+	pos.y = pos.y + (ymax - ymin) / 2.0
+	return pos
+end

mods/ENTITIES/mcl_mobs/api.lua

@@ -789,18 +789,16 @@ local check_for_death = function(self, cause, cmi_cause)
 				local puncher = cmi_cause.puncher
 				if puncher then
 					wielditem = puncher:get_wielded_item()
+
+					if mod_experience and ((not self.child) or self.type ~= "animal") then
+						mcl_experience.throw_experience(self.object:get_pos(), math.random(self.xp_min, self.xp_max))
+					end
 				end
 			end
 			local cooked = mcl_burning.is_burning(self.object) or mcl_enchanting.has_enchantment(wielditem, "fire_aspect")
 			local looting = mcl_enchanting.get_enchantment(wielditem, "looting")
 			item_drop(self, cooked, looting)
 		end
-
-		local pos = self.object:get_pos()
-
-		if mod_experience and ((not self.child) or self.type ~= "animal") then
-			mcl_experience.throw_experience(pos, math.random(self.xp_min, self.xp_max))
-		end
 	end
 
 	-- execute custom death function
@@ -2258,7 +2256,6 @@ local dogswitch = function(self, dtime)
 	return self.dogshoot_switch
 end
 
-
 -- execute current state (stand, walk, run, attacks)
 -- returns true if mob has died
 local do_states = function(self, dtime)
@@ -2550,7 +2547,7 @@ local do_states = function(self, dtime)
 
 					if mod_explosions then
 					if mobs_griefing and not minetest.is_protected(pos, "") then
-						mcl_explosions.explode(self.object:get_pos(), self.explosion_strength, { drop_chance = 1.0 }, self.object)
+						mcl_explosions.explode(mcl_util.get_object_center(self.object), self.explosion_strength, { drop_chance = 1.0 }, self.object)
 					else
 						minetest.sound_play(self.sounds.explode, {
 							pos = pos,

mods/ENTITIES/mobs_mc/creeper.lua

@@ -71,7 +71,7 @@ mobs:register_mob("mobs_mc:creeper", {
 		if self._forced_explosion_countdown_timer ~= nil then
 			self._forced_explosion_countdown_timer = self._forced_explosion_countdown_timer - dtime
 			if self._forced_explosion_countdown_timer <= 0 then
-				mobs:boom(self, self.object:get_pos(), self.explosion_strength)
+				mobs:boom(self, mcl_util.get_object_center(self.object), self.explosion_strength)
 				self.object:remove()
 			end
 		end

mods/ENTITIES/mobs_mc/villager.lua

@@ -962,6 +962,7 @@ mobs:register_mob("mobs_mc:villager", {
 	walk_velocity = 1.2,
 	run_velocity = 2.4,
 	drops = {},
+	can_despawn = false,
 	-- TODO: sounds
 	animation = {
 		stand_speed = 25,

mods/ITEMS/mcl_bows/arrow.lua

@@ -26,7 +26,7 @@ S("An arrow fired from a bow has a regular damage of 1-9. At full charge, there'
 S("Arrows might get stuck on solid blocks and can be retrieved again. They are also capable of pushing wooden buttons."),
 	_doc_items_usagehelp = S("To use arrows as ammunition for a bow, just put them anywhere in your inventory, they will be used up automatically. To use arrows as ammunition for a dispenser, place them in the dispenser's inventory. To retrieve an arrow that sticks in a block, simply walk close to it."),
 	inventory_image = "mcl_bows_arrow_inv.png",
-	groups = { ammo=1, ammo_bow=1 },
+	groups = { ammo=1, ammo_bow=1, ammo_bow_regular=1 },
 	_on_dispense = function(itemstack, dispenserpos, droppos, dropnode, dropdir)
 		-- Shoot arrow
 		local shootpos = vector.add(dispenserpos, vector.multiply(dropdir, 0.51))
@@ -166,7 +166,7 @@ ARROW_ENTITY.on_step = function(self, dtime)
 		local objects = minetest.get_objects_inside_radius(pos, 1)
 		for _,obj in ipairs(objects) do
 			if obj:is_player() then
-				if not minetest.is_creative_enabled(obj:get_player_name()) then
+				if self._collectable and not minetest.is_creative_enabled(obj:get_player_name()) then
 					if obj:get_inventory():room_for_item("main", "mcl_bows:arrow") then
 						obj:get_inventory():add_item("main", "mcl_bows:arrow")
 						minetest.sound_play("item_drop_pickup", {

mods/ITEMS/mcl_bows/bow.lua

@@ -33,7 +33,7 @@ local bow_load = {}
 -- Another player table, this one stores the wield index of the bow being charged
 local bow_index = {}
 
-mcl_bows.shoot_arrow = function(arrow_item, pos, dir, yaw, shooter, power, damage, is_critical, bow_stack)
+mcl_bows.shoot_arrow = function(arrow_item, pos, dir, yaw, shooter, power, damage, is_critical, bow_stack, collectable)
 	local obj = minetest.add_entity({x=pos.x,y=pos.y,z=pos.z}, arrow_item.."_entity")
 	if power == nil then
 		power = BOW_MAX_SPEED --19
@@ -63,6 +63,7 @@ mcl_bows.shoot_arrow = function(arrow_item, pos, dir, yaw, shooter, power, damag
 	le._is_critical = is_critical
 	le._startpos = pos
 	le._knockback = knockback
+	le._collectable = collectable
 	minetest.sound_play("mcl_bows_bow_shoot", {pos=pos, max_hear_distance=16}, true)
 	if shooter ~= nil and shooter:is_player() then
 		if obj:get_luaentity().player == "" then
@@ -91,6 +92,7 @@ local player_shoot_arrow = function(itemstack, player, power, damage, is_critica
 	local arrow_stack, arrow_stack_id = get_arrow(player)
 	local arrow_itemstring
 	local has_infinity_enchantment = mcl_enchanting.has_enchantment(player:get_wielded_item(), "infinity")
+	local infinity_used = false
 
 	if minetest.is_creative_enabled(player:get_player_name()) then
 		if arrow_stack then
@@ -103,7 +105,9 @@ local player_shoot_arrow = function(itemstack, player, power, damage, is_critica
 			return false
 		end
 		arrow_itemstring = arrow_stack:get_name()
-		if not has_infinity_enchantment then
+		if has_infinity_enchantment and minetest.get_item_group(arrow_itemstring, "ammo_bow_regular") > 0 then
+			infinity_used = true
+		else
 			arrow_stack:take_item()
 		end
 		local inv = player:get_inventory()
@@ -116,7 +120,7 @@ local player_shoot_arrow = function(itemstack, player, power, damage, is_critica
 	local dir = player:get_look_dir()
 	local yaw = player:get_look_horizontal()
 
-	mcl_bows.shoot_arrow(arrow_itemstring, {x=playerpos.x,y=playerpos.y+1.5,z=playerpos.z}, dir, yaw, player, power, damage, is_critical, player:get_wielded_item())
+	mcl_bows.shoot_arrow(arrow_itemstring, {x=playerpos.x,y=playerpos.y+1.5,z=playerpos.z}, dir, yaw, player, power, damage, is_critical, player:get_wielded_item(), not infinity_used)
 	return true
 end
 

mods/ITEMS/mcl_chests/init.lua

@@ -2,25 +2,14 @@ local S = minetest.get_translator("mcl_chests")
 local mod_doc = minetest.get_modpath("doc")
 
 -- Chest Entity
-local entity_animations = {}
+local animate_chests = (minetest.settings:get_bool("animated_chests") ~= false)
 local entity_animation_speed = 25
-
-do
-	local names = {"open", "opened", "close", "closed"}
-	local following = {["open"] = "opened", ["close"] = "closed"}
-	local durations = {10, 0, 10, 5}
-	local anim_start = 0
-	for index, name in ipairs(names) do
-		local duration = durations[index]
-		local anim_end = anim_start + duration
-		entity_animations[name] = {
-			bounds = {x = anim_start, y = anim_end},
-			sched_anim = following[name],
-			sched_time = duration / entity_animation_speed
-		}
-		anim_start = anim_end
-	end
-end
+local entity_animations = {
+	["open"] = {x = 0, y = 10},
+	["open_partly"] = {x = 0, y = 7},
+	["close"] = {x = 10, y = 20},
+	["close_partly"] = {x = 13, y = 20},
+}
 
 minetest.register_entity("mcl_chests:chest", {
 	initial_properties = {
@@ -33,21 +22,19 @@ minetest.register_entity("mcl_chests:chest", {
 
 	set_animation = function(self, animname)
 		local anim = entity_animations[animname]
-		self.object:set_animation(anim.bounds, entity_animation_speed, 0, false)
-		if anim.sched_anim then
-			self.sched_anim = anim.sched_anim
-			self.sched_time = anim.sched_time
-		end
+		if not anim then return end
+		self.object:set_animation(anim, entity_animation_speed, 0, false)
 	end,
 
-	open = function(self, playername)
+	open = function(self, playername, partly)
 		self.players[playername] = true
 		if not self.is_open then
-			self.is_open = true
-			self:set_animation("open")
+			self:set_animation(partly and "open_partly" or "open")
 			minetest.sound_play(self.sound_prefix .. "_open", {
 				pos = self.node_pos,
 			})
+			self.is_open = true
+			self.opened_partly = partly
 		end
 	end,
 
@@ -58,11 +45,12 @@ minetest.register_entity("mcl_chests:chest", {
 			for _ in pairs(playerlist) do
 				return
 			end
-			self.is_open = false
-			self:set_animation("close")
+			self:set_animation(self.opened_partly and "close_partly" or "close")
 			minetest.sound_play(self.sound_prefix .. "_close", {
 				pos = self.node_pos,
 			})
+			self.is_open = false
+			self.opened_partly = false
 		end
 	end,
 
@@ -100,23 +88,12 @@ minetest.register_entity("mcl_chests:chest", {
 
 	on_activate = function(self)
 		self.object:set_armor_groups({immortal = 1})
-		self:set_animation("closed")
 		self.players = {}
 	end,
 
 	on_step = function(self, dtime)
-		local sched_anim, sched_time = self.sched_anim, self.sched_time
 		if not self:check() then
 			self.object:remove()
-		elseif sched_anim and sched_time then
-			sched_time = sched_time - dtime
-			if sched_time < 0 then
-				self:set_animation(sched_anim)
-				self.sched_time = nil
-				self.sched_anim = nil
-			else
-				self.sched_time = sched_time
-			end
 		end
 	end
 })
@@ -149,8 +126,8 @@ local function create_entity(pos, node_name, textures, param2, double, sound_pre
 	return luaentity
 end
 
-local function find_or_create_entity(pos, node_name, textures, param2, double, sound_prefix, mesh_prefix)
-	local dir = minetest.facedir_to_dir(param2)
+local function find_or_create_entity(pos, node_name, textures, param2, double, sound_prefix, mesh_prefix, dir)
+	local dir = dir or minetest.facedir_to_dir(param2)
 	local entity_pos = get_entity_pos(pos, dir, double)
 	return find_entity(entity_pos) or create_entity(pos, node_name, textures, param2, double, sound_prefix, mesh_prefix, dir, entity_pos)
 end
@@ -175,11 +152,22 @@ Value:
     If player is using a chest: { pos = <chest node position> }
     Otherwise: nil ]]
 local open_chests = {}
+
+local function back_is_blocked(pos, dir)
+	pos = vector.add(pos, dir)
+	local def = minetest.registered_nodes[minetest.get_node(pos).name]
+	pos.y = pos.y + 1
+	local def2 = minetest.registered_nodes[minetest.get_node(pos).name]
+	return not def or def.groups.opaque == 1 or not def2 or def2.groups.opaque == 1
+end
 -- To be called if a player opened a chest
 local player_chest_open = function(player, pos, node_name, textures, param2, double, sound, mesh)
 	local name = player:get_player_name()
 	open_chests[name] = {pos = pos, node_name = node_name, textures = textures, param2 = param2, double = double, sound = sound, mesh = mesh}
-	find_or_create_entity(pos, node_name, textures, param2, double, sound, mesh):open(name)
+	if animate_chests then
+		local dir = minetest.facedir_to_dir(param2)
+		find_or_create_entity(pos, node_name, textures, param2, double, sound, mesh, dir):open(name, back_is_blocked(pos, dir) or double and back_is_blocked(mcl_util.get_double_container_neighbor_pos(pos, param2, node_name:sub(-4)), dir))
+	end
 end
 
 -- Simple protection checking functions
@@ -238,7 +226,9 @@ local player_chest_close = function(player)
 	if open_chest == nil then
 		return
 	end
-	find_or_create_entity(open_chest.pos, open_chest.node_name, open_chest.textures, open_chest.param2, open_chest.double, open_chest.sound, open_chest.mesh):close(name)
+	if animate_chests then
+		find_or_create_entity(open_chest.pos, open_chest.node_name, open_chest.textures, open_chest.param2, open_chest.double, open_chest.sound, open_chest.mesh):close(name)
+	end
 	chest_update_after_close(open_chest.pos)
 
 	open_chests[name] = nil

mods/ITEMS/mcl_core/craftitems.lua

@@ -147,6 +147,17 @@ minetest.register_craftitem("mcl_core:apple", {
 local gapple_hunger_restore = minetest.item_eat(4)
 
 local function eat_gapple(itemstack, placer, pointed_thing)
+	if pointed_thing.type == "node" then
+		local node = minetest.get_node(pointed_thing.under)
+		if placer and not placer:get_player_control().sneak then
+			if minetest.registered_nodes[node.name] and minetest.registered_nodes[node.name].on_rightclick then
+				return minetest.registered_nodes[node.name].on_rightclick(pointed_thing.under, node, placer, itemstack) or itemstack
+			end
+		end
+	elseif pointed_thing.type == "object" then
+		return itemstack
+	end
+
 	local regen_duration, absorbtion_factor = 5, 1
 	if itemstack:get_name() == "mcl_core:apple_gold_enchanted" then
 		regen_duration, absorbtion_factor = 20, 4

mods/ITEMS/mcl_enchanting/init.lua

@@ -219,6 +219,16 @@ end
 
 minetest.register_node("mcl_enchanting:table", {
 	description = S("Enchanting Table"),
+	_tt_help = S("Spend experience, and lapis to enchant various items."),
+	_doc_items_longdesc = S("Enchanting Tables will let you enchant armors, tools, weapons, and books with various abilities. But, at the cost of some experience, and lapis lazuli."),
+	_doc_items_usagehelp =
+			S("Rightclick the Enchanting Table to open the enchanting menu.").."\n"..
+			S("Place a tool, armor, weapon or book into the top left slot, and then place 1-3 Lapis Lazuli in the slot to the right.").."\n".."\n"..
+			S("After placing your items in the slots, the enchanting options will be shown. Hover over the options to read what is available to you.").."\n"..
+			S("These options are randomized, and dependent on experience level; but the enchantment strength can be increased.").."\n".."\n"..
+			S("To increase the enchantment strength, place bookshelves around the enchanting table. However, you will need to keep 1 air node between the table, & the bookshelves to empower the enchanting table.").."\n".."\n"..
+			S("After finally selecting your enchantment; left-click on the selection, and you will see both the lapis lazuli and your experience levels consumed. And, an enchanted item left in its place."),
+	_doc_items_hidden = false,
 	drawtype = "nodebox",
 	tiles = {"mcl_enchanting_table_top.png",  "mcl_enchanting_table_bottom.png", "mcl_enchanting_table_side.png", "mcl_enchanting_table_side.png", "mcl_enchanting_table_side.png", "mcl_enchanting_table_side.png"},
 	node_box = {

mods/ITEMS/mcl_flowers/init.lua

@@ -448,3 +448,34 @@ minetest.register_node("mcl_flowers:waterlily", {
 
 -- Legacy support
 minetest.register_alias("mcl_core:tallgrass", "mcl_flowers:tallgrass")
+
+-- mcimport support: re-adds missing double_plant tops in mcimported worlds.
+local mg_name = minetest.get_mapgen_setting("mg_name")
+local mod_mcimport = minetest.get_modpath("mcimport") ~= nil
+local fix_doubleplants = minetest.settings:get_bool("fix_doubleplants", true)
+
+
+	if mod_mcimport and mg_name == "singlenode" and fix_doubleplants == true then
+		local flowernames = { "peony", "rose_bush", "lilac", "sunflower", "double_fern", "double_grass" }
+		for c=1, 6 do
+			local flowername = flowernames[c]
+		end
+
+		minetest.register_lbm({
+			label = "Add double plant tops.",
+			name = "mcl_flowers:double_plant_topper",
+			run_at_every_load = true,
+			nodenames = { "mcl_flowers:peony", "mcl_flowers:rose_bush", "mcl_flowers:lilac", "mcl_flowers:sunflower", "mcl_flowers:double_fern", "mcl_flowers:double_grass" },
+			action = function(pos, node)
+				for c=1, 6 do
+					local flowername = flowernames[c]
+					local bottom = pos
+					local top = { x = bottom.x, y = bottom.y + 1, z = bottom.z }
+					if node.name == "mcl_flowers:"..flowername then
+						minetest.set_node(top, {name = "mcl_flowers:"..flowername.."_top"})
+					end
+				end
+			end,
+		})
+	end
+

mods/MAPGEN/mcl_dungeons/init.lua

@@ -8,6 +8,7 @@ if mcl_vars.mg_dungeons == false then
 	return
 end
 
+if mg_name ~= "singlenode" then
 -- Get loot for dungeon chests
 local get_loot = function()
 	local loottable = {
@@ -396,3 +397,4 @@ minetest.register_on_generated(function(minp, maxp)
 	end
 
 end)
+end

mods/MAPGEN/mcl_villages/README.txt

@@ -0,0 +1,45 @@
+MCL_Villages:
+============================
+A fork of Rochambeau's "Settlements" mod converted for use in MineClone2.
+
+--------------
+Using the mod:
+--------------
+This mod adds settlements on world generation.
+
+And, in Creative Mode; also comes with a debug tool for spawning in villages.
+
+
+-------------
+MCL2 Credits:
+-------------
+Code forked from: https://github.com/MysticTempest/settlements/tree/mcl_villages
+	Commit: e24b4be
+================================================================================
+Basic conversion of Settlements mod for compatibility with MineClone2, plus new schematics: MysticTempest
+
+Seed-based Village Generation, multi-threading, bugfixes: kay27
+
+
+
+=========================
+version: 0.1 alpha
+
+License of source code: WTFPL
+-----------------------------
+(c) Copyright Rochambeau (2018)
+
+This program is free software. It comes without any warranty, to
+the extent permitted by applicable law. You can redistribute it
+and/or modify it under the terms of the Do What The Fuck You Want
+To Public License, Version 2, as published by Sam Hocevar. See
+http://sam.zoy.org/wtfpl/COPYING for more details.
+
+
+Credits:
+--------------
+This mod is based on "ruins" by BlockMen
+
+Completely new schematics for MineClone2:
+MysticTempest - CC-BY-SA 4.0
+

mods/MAPGEN/mcl_villages/buildings.lua

@@ -0,0 +1,357 @@
+--[[
+-------------------------------------------------------------------------------
+-- build schematic, replace material, rotation
+-------------------------------------------------------------------------------
+function settlements.build_schematic(vm, data, va, pos, building, replace_wall, name)
+  -- get building node material for better integration to surrounding
+  local platform_material =  minetest.get_node_or_nil(pos)
+  if not platform_material then
+    return
+  end
+  platform_material = platform_material.name
+  -- pick random material
+  local material = wallmaterial[math.random(1,#wallmaterial)]
+  -- schematic conversion to lua
+  local schem_lua = minetest.serialize_schematic(building, 
+    "lua", 
+    {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)
+  end
+  schem_lua = schem_lua:gsub("mcl_core:dirt_with_grass", 
+    platform_material)
+
+--  Disable special junglewood for now.
+ -- special material for spawning npcs
+ -- schem_lua = schem_lua:gsub("mcl_core:junglewood", 
+ --   "settlements:junglewood")
+--
+
+  -- format schematic string
+  local schematic = loadstring(schem_lua)()
+  -- build foundation for the building an make room above
+  local width = schematic["size"]["x"]
+  local depth = schematic["size"]["z"]
+  local height = schematic["size"]["y"]
+  local possible_rotations = {"0", "90", "180", "270"}
+  local rotation = possible_rotations[ math.random( #possible_rotations ) ]
+  settlements.foundation(
+    pos, 
+    width, 
+    depth, 
+    height, 
+    rotation)
+  vm:set_data(data)
+  -- place schematic
+
+  minetest.place_schematic_on_vmanip(
+    vm, 
+    pos, 
+    schematic, 
+    rotation, 
+    nil, 
+    true)
+  vm:write_to_map(true)
+end]]
+-------------------------------------------------------------------------------
+-- initialize settlement_info 
+-------------------------------------------------------------------------------
+function settlements.initialize_settlement_info(pr)
+	local count_buildings = {}
+
+	-- count_buildings table reset
+	for k,v in pairs(schematic_table) do
+		--    local name = schematic_table[v]["name"]
+		count_buildings[v["name"]] = 0
+	end
+
+	-- randomize number of buildings
+	local number_of_buildings = pr:next(10, 25)
+	local number_built = 1
+	settlements.debug("Village ".. number_of_buildings)
+
+	return count_buildings, number_of_buildings, number_built
+end
+-------------------------------------------------------------------------------
+-- fill settlement_info with LVM
+--------------------------------------------------------------------------------
+function settlements.create_site_plan_lvm(maxp, minp, pr)
+	local settlement_info = {}
+	local building_all_info
+	local possible_rotations = {"0", "90", "180", "270"}
+	-- find center of chunk
+	local center = {
+		x=maxp.x-half_map_chunk_size, 
+		y=maxp.y, 
+		z=maxp.z-half_map_chunk_size
+	} 
+	-- find center_surface of chunk
+	local center_surface, surface_material = settlements.find_surface_lvm(center, minp)
+	-- go build settlement around center
+	if not center_surface then return false end
+
+	-- add settlement to list
+	table.insert(settlements_in_world, center_surface)
+	-- save list to file
+	settlements.save()
+	-- initialize all settlement_info table
+	local count_buildings, number_of_buildings, number_built = settlements.initialize_settlement_info(pr)
+	-- first building is townhall in the center
+	building_all_info = schematic_table[1]
+	local rotation = possible_rotations[ pr:next(1, #possible_rotations ) ]
+	-- add to settlement info table
+	local index = 1
+	settlement_info[index] = {
+		pos = center_surface, 
+		name = building_all_info["name"], 
+		hsize = building_all_info["hsize"],
+		rotat = rotation,
+		surface_mat = surface_material
+	}
+	-- increase index for following buildings
+	index = index + 1
+	-- now some buildings around in a circle, radius = size of town center
+	local x, z, r = center_surface.x, center_surface.z, building_all_info["hsize"]
+	-- draw j circles around center and increase radius by math.random(2,5)
+	for j = 1,20 do
+		if number_built < number_of_buildings then 
+			-- set position on imaginary circle
+			for j = 0, 360, 15 do
+				local angle = j * math.pi / 180
+				local ptx, ptz = x + r * math.cos( angle ), z + r * math.sin( angle )
+				ptx = settlements.round(ptx, 0)
+				ptz = settlements.round(ptz, 0)
+				local pos1 = { x=ptx, y=center_surface.y+50, z=ptz}
+				local pos_surface, surface_material = settlements.find_surface_lvm(pos1, minp)
+				if not pos_surface then break end
+
+				local randomized_schematic_table = shuffle(schematic_table, pr)
+				-- pick schematic
+				local size = #randomized_schematic_table
+				for i = size, 1, -1 do
+					-- already enough buildings of that type?
+					if count_buildings[randomized_schematic_table[i]["name"]] < randomized_schematic_table[i]["max_num"]*number_of_buildings then
+						building_all_info = randomized_schematic_table[i]
+						-- check distance to other buildings
+						local distance_to_other_buildings_ok = settlements.check_distance(settlement_info, pos_surface, building_all_info["hsize"])
+						if distance_to_other_buildings_ok then
+							-- count built houses
+							count_buildings[building_all_info["name"]] = count_buildings[building_all_info["name"]] +1
+
+							rotation = possible_rotations[ pr:next(1, #possible_rotations ) ]
+							number_built = number_built + 1
+							settlement_info[index] = {
+								pos = pos_surface, 
+								name = building_all_info["name"], 
+								hsize = building_all_info["hsize"],
+								rotat = rotation,
+								surface_mat = surface_material
+							}
+							index = index + 1
+							break
+						end
+					end
+				end
+				if number_of_buildings == number_built then
+					break
+				end
+			end
+			r = r + pr:next(2,5)
+		end
+	end
+	settlements.debug("really ".. number_built)
+	return settlement_info
+end
+-------------------------------------------------------------------------------
+-- fill settlement_info
+--------------------------------------------------------------------------------
+function settlements.create_site_plan(maxp, minp, pr)
+	local settlement_info = {}
+	local building_all_info
+	local possible_rotations = {"0", "90", "180", "270"}
+	-- find center of chunk
+	local center = {
+		x=maxp.x-half_map_chunk_size, 
+		y=maxp.y, 
+		z=maxp.z-half_map_chunk_size
+	} 
+	-- find center_surface of chunk
+	local center_surface , surface_material = settlements.find_surface(center)
+	-- go build settlement around center
+	if not center_surface then return false end
+
+	-- add settlement to list
+	table.insert(settlements_in_world, center_surface)
+	-- save list to file
+	settlements.save()
+	-- initialize all settlement_info table
+	local count_buildings, number_of_buildings, number_built = settlements.initialize_settlement_info(pr)
+	-- first building is townhall in the center
+	building_all_info = schematic_table[1]
+	local rotation = possible_rotations[ pr:next(1, #possible_rotations ) ]
+	-- add to settlement info table
+	local index = 1
+	settlement_info[index] = {
+		pos = center_surface, 
+		name = building_all_info["name"], 
+		hsize = building_all_info["hsize"],
+		rotat = rotation,
+		surface_mat = surface_material
+	}
+	--increase index for following buildings
+	index = index + 1
+	-- now some buildings around in a circle, radius = size of town center
+	local x, z, r = center_surface.x, center_surface.z, building_all_info["hsize"]
+	-- draw j circles around center and increase radius by math.random(2,5)
+	for j = 1,20 do
+		if number_built < number_of_buildings then
+			-- set position on imaginary circle
+			for j = 0, 360, 15 do
+				local angle = j * math.pi / 180
+				local ptx, ptz = x + r * math.cos( angle ), z + r * math.sin( angle )
+				ptx = settlements.round(ptx, 0)
+				ptz = settlements.round(ptz, 0)
+				local pos1 = { x=ptx, y=center_surface.y+50, z=ptz}
+				local pos_surface, surface_material = settlements.find_surface(pos1)
+				if not pos_surface then break end
+
+				local randomized_schematic_table = shuffle(schematic_table, pr)
+				-- pick schematic
+				local size = #randomized_schematic_table
+				for i = size, 1, -1 do
+					-- already enough buildings of that type?
+					if count_buildings[randomized_schematic_table[i]["name"]] < randomized_schematic_table[i]["max_num"]*number_of_buildings then
+						building_all_info = randomized_schematic_table[i]
+						-- check distance to other buildings
+						local distance_to_other_buildings_ok = settlements.check_distance(settlement_info, pos_surface, building_all_info["hsize"])
+						if distance_to_other_buildings_ok then
+							-- count built houses
+							count_buildings[building_all_info["name"]] = count_buildings[building_all_info["name"]] +1
+							rotation = possible_rotations[ pr:next(1, #possible_rotations ) ]
+							number_built = number_built + 1
+							settlement_info[index] = {
+								pos = pos_surface, 
+								name = building_all_info["name"], 
+								hsize = building_all_info["hsize"],
+								rotat = rotation,
+								surface_mat = surface_material
+							}
+							index = index + 1
+							break
+						end
+					end
+				end
+				if number_of_buildings == number_built then
+					break
+				end
+			end
+			r = r + pr:next(2,5)
+		end
+	end
+	settlements.debug("really ".. number_built)
+	return settlement_info
+end
+-------------------------------------------------------------------------------
+-- evaluate settlement_info and place schematics
+-------------------------------------------------------------------------------
+function settlements.place_schematics_lvm(settlement_info, pr)
+	for i, built_house in ipairs(settlement_info) do
+		for j, schem in ipairs(schematic_table) do
+			if settlement_info[i]["name"] == schem["name"] then
+				building_all_info = schem
+				break
+			end
+		end
+
+		local pos = settlement_info[i]["pos"] 
+		local rotation = settlement_info[i]["rotat"] 
+		-- get building node material for better integration to surrounding
+		local platform_material = settlement_info[i]["surface_mat"]
+		platform_material_name = minetest.get_name_from_content_id(platform_material)
+		-- pick random material
+		local material = wallmaterial[pr:next(1,#wallmaterial)]
+		--
+		local building = building_all_info["mts"]
+		local replace_wall = building_all_info["rplc"]
+		-- schematic conversion to lua
+		local schem_lua = minetest.serialize_schematic(building, 
+			"lua", 
+			{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)
+		end
+		schem_lua = schem_lua:gsub("mcl_core:dirt_with_grass", platform_material_name)
+
+		--[[ Disable special junglewood for now.
+		-- special material for spawning npcs
+		schem_lua = schem_lua:gsub("mcl_core:junglewood", "settlements:junglewood")
+		--]]
+		-- format schematic string
+		local schematic = loadstring(schem_lua)()
+		-- build foundation for the building an make room above
+		-- place schematic
+
+		minetest.place_schematic_on_vmanip(
+			vm, 
+			pos, 
+			schematic, 
+			rotation, 
+			nil, 
+			true)
+	  end
+end
+-------------------------------------------------------------------------------
+-- evaluate settlement_info and place schematics
+-------------------------------------------------------------------------------
+function settlements.place_schematics(settlement_info, pr)
+	local building_all_info
+	for i, built_house in ipairs(settlement_info) do
+		for j, schem in ipairs(schematic_table) do
+			if settlement_info[i]["name"] == schem["name"] then
+				building_all_info = schem
+				break
+			end
+		end
+
+		local pos = settlement_info[i]["pos"] 
+		local rotation = settlement_info[i]["rotat"] 
+		-- get building node material for better integration to surrounding
+		local platform_material =  settlement_info[i]["surface_mat"] 
+		--platform_material_name = minetest.get_name_from_content_id(platform_material)
+		-- pick random material
+		local material = wallmaterial[pr:next(1,#wallmaterial)]
+		--
+		local building = building_all_info["mts"]
+		local replace_wall = building_all_info["rplc"]
+		-- schematic conversion to lua
+		local schem_lua = minetest.serialize_schematic(building, 
+			"lua", 
+			{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)
+		end
+		schem_lua = schem_lua:gsub("mcl_core:dirt_with_grass", platform_material)
+
+		--[[ Disable special junglewood for now.
+		-- special material for spawning npcs
+		schem_lua = schem_lua:gsub("mcl_core:junglewood", "settlements:junglewood")
+		--]]
+
+		schem_lua = schem_lua:gsub("mcl_stairs:stair_wood_outer", "mcl_stairs:slab_wood")
+		schem_lua = schem_lua:gsub("mcl_stairs:stair_stone_rough_outer", "air")
+
+		-- format schematic string
+		local schematic = loadstring(schem_lua)()
+		-- build foundation for the building an make room above
+		-- place schematic
+		minetest.place_schematic(
+			pos, 
+			schematic, 
+			rotation, 
+			nil, 
+			true)
+	end
+end

mods/MAPGEN/mcl_villages/const.lua

@@ -0,0 +1,83 @@
+-- switch for debugging
+settlements.debug = function(message)
+	-- minetest.chat_send_all(message)
+	-- minetest.log("warning", "[mcl_villages] "..message)
+	minetest.log("verbose", "[mcl_villages] "..message)
+end
+
+-- switch for lvm
+settlements.lvm = false
+
+settlements.last_settlement = os.time()
+
+-- material to replace cobblestone with
+wallmaterial = {
+	"mcl_core:junglewood", 
+	"mcl_core:sprucewood", 
+	"mcl_core:wood", 
+	"mcl_core:birchwood", 
+	"mcl_core:acaciawood",   
+	"mcl_core:stonebrick", 
+	"mcl_core:cobble", 
+	"mcl_core:sandstonecarved", 
+	"mcl_core:sandstone", 
+	"mcl_core:sandstonesmooth2"
+}
+settlements.surface_mat = {}
+-------------------------------------------------------------------------------
+-- Set array to list
+-- https://stackoverflow.com/questions/656199/search-for-an-item-in-a-lua-list
+-------------------------------------------------------------------------------
+function settlements.grundstellungen()
+	settlements.surface_mat = settlements.Set {
+		"mcl_core:dirt_with_grass",
+		--"mcl_core:dry_dirt_with_grass",
+		"mcl_core:dirt_with_grass_snow",
+		--"mcl_core:dirt_with_dry_grass",
+		"mcl_core:podzol",
+		"mcl_core:sand",
+		"mcl_core:redsand",
+		--"mcl_core:silver_sand",
+		"mcl_core:snowblock"
+	}
+end
+--
+-- possible surfaces where buildings can be built
+--
+
+--
+-- path to schematics
+--
+schem_path = settlements.modpath.."/schematics/"
+--
+-- list of schematics
+--
+schematic_table = { 
+	{name = "large_house",	mts = schem_path.."large_house.mts",	hwidth = 11, hdepth = 12, hheight = 9, hsize = 14, max_num = 0.08, rplc = "n"},
+	{name = "blacksmith",	mts = schem_path.."blacksmith.mts",	hwidth = 7, hdepth = 7, hheight = 13, hsize = 13, max_num = 0.050, rplc = "n"},
+	{name = "church",	mts = schem_path.."church.mts",		hwidth = 13, hdepth = 13, hheight = 14, hsize = 15, max_num = 0.04, rplc = "n"},
+	{name = "farm",		mts = schem_path.."farm.mts",		hwidth = 7, hdepth = 7, hheight = 13, hsize = 13, max_num = 0.1, rplc = "n"},
+	{name = "lamp",		mts = schem_path.."lamp.mts",		hwidth = 3, hdepth = 3, hheight = 13, hsize = 10, max_num = 0.1, rplc = "n"},
+	{name = "library",	mts = schem_path.."library.mts",	hwidth = 12, hdepth = 12, hheight = 8, hsize = 13, max_num = 0.04, rplc = "n"},
+	{name = "medium_house",	mts = schem_path.."medium_house.mts",	hwidth = 8, hdepth = 12, hheight = 8, hsize = 14, max_num = 0.09, rplc = "n"},
+	{name = "small_house",	mts = schem_path.."small_house.mts",	hwidth = 9, hdepth = 7, hheight = 8, hsize = 13, max_num = 0.7, rplc = "n"},
+	{name = "tavern",	mts = schem_path.."tavern.mts",		hwidth = 11, hdepth = 10, hheight = 10, hsize = 13, max_num = 0.050, rplc = "n"},
+	{name = "well",		mts = schem_path.."well.mts",		hwidth = 6, hdepth = 8, hheight = 6, hsize = 10, max_num = 0.045, rplc = "n"},
+}
+--
+-- list of settlements, load on server start up
+--
+settlements_in_world = {}
+--
+-- min_distance between settlements
+--
+settlements.min_dist_settlements = 64
+--
+-- maximum allowed difference in height for building a sttlement
+--
+max_height_difference = 56
+--
+--
+--
+half_map_chunk_size = 40
+quarter_map_chunk_size = 20

mods/MAPGEN/mcl_villages/convert_lua_mts.lua

@@ -0,0 +1,30 @@
+--
+function settlements.convert_mts_to_lua()
+  local building = schem_path.."townhall.mts"
+  local str = minetest.serialize_schematic(building, "lua", {lua_use_comments = true, lua_num_indent_spaces = 0}).." return(schematic)"
+  local schematic = loadstring(str)()
+  local file = io.open(schem_path.."church"..".lua", "w")
+  file:write(dump(schematic))
+  file:close()
+print(dump(schematic))
+end
+
+
+
+function settlements.mts_save()
+    local f = assert(io.open(schem_path.."hut.lua", "r"))
+    local content = f:read("*all").." return(schematic2)"
+    f:close()
+
+  local schematic2 = loadstring("schematic2 = "..content)()
+  local seb = minetest.serialize_schematic(schematic2, "mts", {})
+	local filename = schem_path .. "hut2" .. ".mts"
+	filename = filename:gsub("\"", "\\\""):gsub("\\", "\\\\")
+	local file, err = io.open(filename, "wb")
+	if err == nil and seb then
+		file:write(seb)
+		file:flush()
+		file:close()
+	end
+	print("Wrote: " .. filename)
+end

mods/MAPGEN/mcl_villages/depends.txt

@@ -0,0 +1,3 @@
+mcl_core
+mcl_farming?
+mobs_mc?

mods/MAPGEN/mcl_villages/foundation.lua

@@ -0,0 +1,153 @@
+-------------------------------------------------------------------------------
+-- function to fill empty space below baseplate when building on a hill
+-------------------------------------------------------------------------------
+function settlements.ground_lvm(pos, pr) -- role model: Wendelsteinkircherl, Brannenburg
+	local c_dirt  = minetest.get_content_id("mcl_core:dirt")
+	local c_stone = minetest.get_content_id("mcl_core:stone")
+	--
+	local p2 = vector.new(pos)
+	local cnt = 0
+	local mat = c_dirt
+	p2.y = p2.y-1
+	while true do
+		cnt = cnt+1
+		if cnt > 20 then break end
+		if cnt>pr:next(2,4) then mat = c_stone end
+		--minetest.swap_node(p2, {name="mcl_core:"..mat})
+		local vi = va:index(p2.x, p2.y, p2.z)
+		data[vi] = mat
+		p2.y = p2.y-1
+	end
+	-- return data
+end
+-------------------------------------------------------------------------------
+-- function to fill empty space below baseplate when building on a hill
+-------------------------------------------------------------------------------
+function settlements.ground(pos, pr) -- role model: Wendelsteinkircherl, Brannenburg
+	local p2 = vector.new(pos)
+	local cnt = 0
+	local mat = "mcl_core:dirt"
+	p2.y = p2.y-1
+	while true do
+		cnt = cnt+1
+		if cnt > 20 then break end
+		if cnt>pr:next(2,4) then 
+			mat = "mcl_core:stone" 
+		end
+		minetest.swap_node(p2, {name=mat})
+		p2.y = p2.y-1
+	end
+end
+-------------------------------------------------------------------------------
+-- function clear space above baseplate 
+-------------------------------------------------------------------------------
+function settlements.terraform_lvm(settlement_info, pr)
+  local c_air = minetest.get_content_id("air")
+  local fheight
+  local fwidth
+  local fdepth
+
+
+  for i, built_house in ipairs(settlement_info) do
+    -- pick right schematic_info to current built_house
+    for j, schem in ipairs(schematic_table) do
+      if settlement_info[i]["name"] == schem["name"]
+      then
+        schematic_data = schem
+        break
+      end
+    end
+    local pos = settlement_info[i]["pos"] 
+    if settlement_info[i]["rotat"] == "0" or settlement_info[i]["rotat"] == "180" 
+    then
+      fwidth = schematic_data["hwidth"]
+      fdepth = schematic_data["hdepth"]
+    else
+      fwidth = schematic_data["hdepth"]
+      fdepth = schematic_data["hwidth"]
+    end
+    fheight = schematic_data["hheight"] * 3 -- remove trees and leaves above
+    --
+    -- now that every info is available -> create platform and clear space above
+    --
+    for zi = 0,fdepth-1 do
+      for yi = 0,fheight do
+        for xi = 0,fwidth-1 do
+          if yi == 0 then
+            local p = {x=pos.x+xi, y=pos.y, z=pos.z+zi}
+            settlements.ground_lvm(p, pr)
+          else
+            --break --todo
+            -- write ground
+            local vi = va:index(pos.x+xi, pos.y+yi, pos.z+zi)
+            if data[vi] ~= c_air
+            --local node = minetest.get_node_or_nil({x=p5.x+xi, y=p5.y+yi, z=p5.z+zi})
+            --if node then
+            --if node.name ~= "air"
+            then
+              --minetest.swap_node({x=pos.x+xi, y=pos.y+yi, z=pos.z+zi},{name="air"}) 
+              data[vi] = c_air
+            end
+          end
+        end
+      end
+    end
+
+  end
+end
+-------------------------------------------------------------------------------
+-- function clear space above baseplate 
+-------------------------------------------------------------------------------
+function settlements.terraform(settlement_info, pr)
+  local fheight
+  local fwidth
+  local fdepth
+  local schematic_data
+
+  for i, built_house in ipairs(settlement_info) do
+    -- pick right schematic_info to current built_house
+    for j, schem in ipairs(schematic_table) do
+      if settlement_info[i]["name"] == schem["name"]
+      then
+        schematic_data = schem
+        break
+      end
+    end
+    local pos = settlement_info[i]["pos"] 
+    if settlement_info[i]["rotat"] == "0" or settlement_info[i]["rotat"] == "180" 
+    then
+      fwidth = schematic_data["hwidth"]
+      fdepth = schematic_data["hdepth"]
+    else
+      fwidth = schematic_data["hdepth"]
+      fdepth = schematic_data["hwidth"]
+    end
+    --fheight = schematic_data["hheight"] * 3  -- remove trees and leaves above
+    fheight = schematic_data["hheight"]  -- remove trees and leaves above
+    --
+    -- now that every info is available -> create platform and clear space above
+    --
+    for xi = 0,fwidth-1 do
+      for zi = 0,fdepth-1 do
+        for yi = 0,fheight *3 do
+          if yi == 0 then
+            local p = {x=pos.x+xi, y=pos.y, z=pos.z+zi}
+            settlements.ground(p, pr)
+          else
+            -- write ground
+            local p = {x=pos.x+xi, y=pos.y+yi, z=pos.z+zi}
+            minetest.forceload_block(p)
+            local node = minetest.get_node_or_nil(p)
+            if node then
+              if node.name ~= "air"
+              then
+                minetest.swap_node(p,{name="air"}) 
+              end
+            end
+          end
+        end
+      end
+    end
+
+  end
+end

mods/MAPGEN/mcl_villages/init.lua

@@ -0,0 +1,235 @@
+-- eclipse debugging lines
+--require("debugger")(idehost, ideport, idekey)
+
+--zerobrane debugging lines
+--package.cpath = package.cpath .. ";/usr/share/lua/5.2/?.so"
+--package.path = package.path .. ";/usr/share/zbstudio/lualibs/mobdebug/?.lua"
+--require('mobdebug').start()
+
+settlements = {}
+settlements.modpath = minetest.get_modpath("mcl_villages");
+
+dofile(settlements.modpath.."/const.lua")
+dofile(settlements.modpath.."/utils.lua")
+dofile(settlements.modpath.."/foundation.lua")
+dofile(settlements.modpath.."/buildings.lua")
+dofile(settlements.modpath.."/paths.lua")
+dofile(settlements.modpath.."/convert_lua_mts.lua")
+--
+-- load settlements on server
+--
+settlements_in_world = settlements.load()
+settlements.grundstellungen()
+
+--[[ Disable custom node spawning.
+--
+-- register block for npc spawn
+--
+minetest.register_node("settlements:junglewood", {
+    description = "special junglewood floor",
+    tiles = {"default_junglewood.png"},
+    groups = {choppy=3, wood=2},
+    sounds = default.node_sound_wood_defaults(),
+  })
+
+--]]
+
+
+--[[ Enable for testing, but use MineClone2's own spawn code if/when merging.
+--
+-- register inhabitants
+--
+if minetest.get_modpath("mobs_mc") ~= nil then
+  mobs:register_spawn("mobs_mc:villager", --name
+    {"mcl_core:stonebrickcarved"}, --nodes
+    15, --max_light
+    0, --min_light
+    20, --chance
+    7, --active_object_count
+    31000, --max_height
+    nil) --day_toggle
+end 
+--]]
+
+--
+-- on map generation, try to build a settlement
+--
+local function build_a_settlement_no_delay(minp, maxp, blockseed)
+	local settlement_info
+	local pr = PseudoRandom(blockseed)
+	--
+	-- fill settlement_info with buildings and their data
+	--
+	if settlements.lvm == true then
+		-- get LVM of current chunk
+		local vm, data, va, emin, emax = settlements.getlvm(minp, maxp)
+		settlement_info = settlements.create_site_plan_lvm(maxp, minp, pr)
+	else
+		settlement_info = settlements.create_site_plan(maxp, minp, pr)
+	end
+	if not settlement_info then return end
+
+	-- evaluate settlement_info and prepair terrain
+	if settlements.lvm == true then
+		settlements.terraform_lvm(settlement_info, pr)
+	else
+		settlements.terraform(settlement_info, pr)
+	end
+
+	-- evaluate settlement_info and build paths between buildings
+	if settlements.lvm == true then
+		settlements.paths_lvm(settlement_info, minp)
+	else
+		settlements.paths(settlement_info)
+	end
+
+	-- evaluate settlement_info and place schematics
+	if settlements.lvm == true then
+		vm:set_data(data)
+		settlements.place_schematics_lvm(settlement_info, pr)
+		vm:write_to_map(true)
+	else
+		settlements.place_schematics(settlement_info, pr)
+	end
+
+	-- evaluate settlement_info and initialize furnaces and chests
+	settlements.initialize_nodes(settlement_info, pr)
+end
+
+local function ecb_build_a_settlement(blockpos, action, calls_remaining, param)
+	if calls_remaining <= 0 then
+		build_a_settlement_no_delay(param.minp, param.maxp, param.blockseed)
+	end
+end
+
+minetest.register_on_generated(function(minp, maxp, blockseed)
+	-- needed for manual and automated settlement building
+	local heightmap = minetest.get_mapgen_object("heightmap")
+
+	-- randomly try to build settlements
+	if blockseed % 77 ~= 17 then return end
+
+	-- don't build settlement underground
+	if maxp.y < 0 then return end
+
+	-- don't build settlements too close to each other
+	local center_of_chunk = { 
+		x=maxp.x-half_map_chunk_size, 
+		y=maxp.y-half_map_chunk_size, 
+		z=maxp.z-half_map_chunk_size
+	} 
+	local dist_ok = settlements.check_distance_other_settlements(center_of_chunk)
+	if dist_ok == false then return end
+
+	-- don't build settlements on (too) uneven terrain
+	local height_difference = settlements.evaluate_heightmap(minp, maxp)
+	if height_difference > max_height_difference then return end
+
+	minetest.emerge_area(vector.subtract(minp,24), vector.add(maxp,24), ecb_build_a_settlement, {minp = vector.new(minp), maxp=vector.new(maxp), blockseed=blockseed})
+	-- old way - wait 3 seconds:
+	-- minetest.after(3, ecb_build_a_settlement, nil, 1, 0, {minp = vector.new(minp), maxp=vector.new(maxp), blockseed=blockseed})
+end)
+
+--
+-- manually place buildings, for debugging only
+--
+minetest.register_craftitem("mcl_villages:tool", {
+    description = "mcl_villages build tool",
+    inventory_image = "default_tool_woodshovel.png",
+    
+	--[[ Disable on_use for now.
+    -- build single house
+    --
+    on_use = function(itemstack, placer, pointed_thing)
+      local center_surface = pointed_thing.under
+      if center_surface then
+        local building_all_info = {name = "blacksmith", 
+          mts = schem_path.."blacksmith.mts", 
+          hsize = 13, 
+          max_num = 0.9, 
+          rplc = "n"}
+        settlements.build_schematic(center_surface, 
+          building_all_info["mts"],
+          building_all_info["rplc"], 
+          building_all_info["name"])
+
+--        settlements.convert_mts_to_lua()
+--        settlements.mts_save()
+      end
+    end,
+--]]
+    --
+    -- build ssettlement
+    --
+    on_place = function(itemstack, placer, pointed_thing)
+		local pr = PseudoRandom(math.rand(0,32767))
+      -- enable debug routines
+      local center_surface = pointed_thing.under
+      if center_surface then
+        local minp = {
+          x=center_surface.x-half_map_chunk_size, 
+          y=center_surface.y-half_map_chunk_size, 
+          z=center_surface.z-half_map_chunk_size
+        }
+        local maxp = {
+          x=center_surface.x+half_map_chunk_size, 
+          y=center_surface.y+half_map_chunk_size, 
+          z=center_surface.z+half_map_chunk_size
+        }
+        --
+        -- get LVM of current chunk
+        --
+        local vm, data, va, emin, emax = settlements.getlvm(minp, maxp)
+        --
+        -- fill settlement_info with buildings and their data
+        --
+        local start_time = os.time()
+        local settlement_info
+        if settlements.lvm == true then
+		settlement_info = settlements.create_site_plan_lvm(maxp, minp, pr)
+        else
+		settlement_info = settlements.create_site_plan(maxp, minp, pr)
+        end
+        if not settlement_info then return end
+        --
+        -- evaluate settlement_info and prepair terrain
+        --
+        if settlements.lvm == true then
+		settlements.terraform_lvm(settlement_info, pr)
+        else
+		settlements.terraform(settlement_info, pr)
+        end
+
+        --
+        -- evaluate settlement_info and build paths between buildings
+        --
+        if settlements.lvm == true then
+		settlements.paths_lvm(settlement_info, minp)
+        else
+		settlements.paths(settlement_info)
+        end
+        --
+        -- evaluate settlement_info and place schematics
+        --
+        if settlements.lvm == true then
+		vm:set_data(data)
+		settlements.place_schematics_lvm(pr)
+		vm:write_to_map(true)
+        else
+		settlements.place_schematics()
+        end
+
+        --
+        -- evaluate settlement_info and initialize furnaces and chests
+        --
+        settlements.initialize_nodes(settlement_info, pr)
+        local end_time = os.time()
+        minetest.chat_send_all("Time ".. end_time - start_time)
+--
+        --settlements.convert_mts_to_lua()
+        --settlements.mts_save()
+
+      end
+    end
+  })
+

mods/MAPGEN/mcl_villages/paths.lua

@@ -0,0 +1,180 @@
+-------------------------------------------------------------------------------
+-- generate paths between buildings
+-------------------------------------------------------------------------------
+function settlements.paths_lvm(settlement_info, minp)
+  local c_grasspath             = minetest.get_content_id("mcl_core:grass_path")
+  local starting_point
+  local end_point
+  local distance
+  --for k,v in pairs(settlement_info) do
+  starting_point = settlement_info[1]["pos"] 
+  for o,p in pairs(settlement_info) do
+
+    end_point = settlement_info[o]["pos"] 
+    if starting_point ~= end_point
+    then
+      -- loop until end_point is reched (distance == 0)
+      while true do
+
+        -- define surrounding pos to starting_point
+        local north_p = {x=starting_point.x+1, y=starting_point.y, z=starting_point.z}
+        local south_p = {x=starting_point.x-1, y=starting_point.y, z=starting_point.z}
+        local west_p = {x=starting_point.x, y=starting_point.y, z=starting_point.z+1}
+        local east_p = {x=starting_point.x, y=starting_point.y, z=starting_point.z-1}
+        -- measure distance to end_point
+        local dist_north_p_to_end = math.sqrt(
+          ((north_p.x - end_point.x)*(north_p.x - end_point.x))+
+          ((north_p.z - end_point.z)*(north_p.z - end_point.z))
+        )
+        local dist_south_p_to_end = math.sqrt(
+          ((south_p.x - end_point.x)*(south_p.x - end_point.x))+
+          ((south_p.z - end_point.z)*(south_p.z - end_point.z))
+        )
+        local dist_west_p_to_end = math.sqrt(
+          ((west_p.x - end_point.x)*(west_p.x - end_point.x))+
+          ((west_p.z - end_point.z)*(west_p.z - end_point.z))
+        )
+        local dist_east_p_to_end = math.sqrt(
+          ((east_p.x - end_point.x)*(east_p.x - end_point.x))+
+          ((east_p.z - end_point.z)*(east_p.z - end_point.z))
+        )
+        -- evaluate which pos is closer to the end_point
+        if dist_north_p_to_end <= dist_south_p_to_end and
+        dist_north_p_to_end <= dist_west_p_to_end and
+        dist_north_p_to_end <= dist_east_p_to_end 
+        then
+          starting_point = north_p
+          distance = dist_north_p_to_end
+
+        elseif dist_south_p_to_end <= dist_north_p_to_end and
+        dist_south_p_to_end <= dist_west_p_to_end and
+        dist_south_p_to_end <= dist_east_p_to_end 
+        then
+          starting_point = south_p
+          distance = dist_south_p_to_end
+
+        elseif dist_west_p_to_end <= dist_north_p_to_end and
+        dist_west_p_to_end <= dist_south_p_to_end and
+        dist_west_p_to_end <= dist_east_p_to_end 
+        then
+          starting_point = west_p
+          distance = dist_west_p_to_end
+
+        elseif dist_east_p_to_end <= dist_north_p_to_end and
+        dist_east_p_to_end <= dist_south_p_to_end and
+        dist_east_p_to_end <= dist_west_p_to_end 
+        then
+          starting_point = east_p
+          distance = dist_east_p_to_end
+        end
+        -- find surface of new starting point
+        local surface_point, surface_mat = settlements.find_surface_lvm(starting_point, minp)
+        -- replace surface node with mcl_core:grass_path 
+        if surface_point
+        then
+          local vi = va:index(surface_point.x, surface_point.y, surface_point.z)
+          data[vi] = c_grasspath
+
+          --minetest.swap_node(surface_point,{name="mcl_core:grass_path"}) 
+          -- don't set y coordinate, surface might be too low or high
+          starting_point.x = surface_point.x
+          starting_point.z = surface_point.z
+        end
+        if distance <= 1 or
+        starting_point == end_point
+        then
+          break
+        end
+      end
+    end
+  end
+  --end
+  --return data
+end
+-------------------------------------------------------------------------------
+-- generate paths between buildings
+-------------------------------------------------------------------------------
+function settlements.paths(settlement_info)
+  local starting_point
+  local end_point
+  local distance
+  --for k,v in pairs(settlement_info) do
+  starting_point = settlement_info[1]["pos"] 
+  for o,p in pairs(settlement_info) do
+
+    end_point = settlement_info[o]["pos"] 
+    if starting_point ~= end_point
+    then
+      -- loop until end_point is reched (distance == 0)
+      while true do
+
+        -- define surrounding pos to starting_point
+        local north_p = {x=starting_point.x+1, y=starting_point.y, z=starting_point.z}
+        local south_p = {x=starting_point.x-1, y=starting_point.y, z=starting_point.z}
+        local west_p = {x=starting_point.x, y=starting_point.y, z=starting_point.z+1}
+        local east_p = {x=starting_point.x, y=starting_point.y, z=starting_point.z-1}
+        -- measure distance to end_point
+        local dist_north_p_to_end = math.sqrt(
+          ((north_p.x - end_point.x)*(north_p.x - end_point.x))+
+          ((north_p.z - end_point.z)*(north_p.z - end_point.z))
+        )
+        local dist_south_p_to_end = math.sqrt(
+          ((south_p.x - end_point.x)*(south_p.x - end_point.x))+
+          ((south_p.z - end_point.z)*(south_p.z - end_point.z))
+        )
+        local dist_west_p_to_end = math.sqrt(
+          ((west_p.x - end_point.x)*(west_p.x - end_point.x))+
+          ((west_p.z - end_point.z)*(west_p.z - end_point.z))
+        )
+        local dist_east_p_to_end = math.sqrt(
+          ((east_p.x - end_point.x)*(east_p.x - end_point.x))+
+          ((east_p.z - end_point.z)*(east_p.z - end_point.z))
+        )
+        -- evaluate which pos is closer to the end_point
+        if dist_north_p_to_end <= dist_south_p_to_end and
+        dist_north_p_to_end <= dist_west_p_to_end and
+        dist_north_p_to_end <= dist_east_p_to_end 
+        then
+          starting_point = north_p
+          distance = dist_north_p_to_end
+
+        elseif dist_south_p_to_end <= dist_north_p_to_end and
+        dist_south_p_to_end <= dist_west_p_to_end and
+        dist_south_p_to_end <= dist_east_p_to_end 
+        then
+          starting_point = south_p
+          distance = dist_south_p_to_end
+
+        elseif dist_west_p_to_end <= dist_north_p_to_end and
+        dist_west_p_to_end <= dist_south_p_to_end and
+        dist_west_p_to_end <= dist_east_p_to_end 
+        then
+          starting_point = west_p
+          distance = dist_west_p_to_end
+
+        elseif dist_east_p_to_end <= dist_north_p_to_end and
+        dist_east_p_to_end <= dist_south_p_to_end and
+        dist_east_p_to_end <= dist_west_p_to_end 
+        then
+          starting_point = east_p
+          distance = dist_east_p_to_end
+        end
+        -- find surface of new starting point
+        local surface_point, surface_mat = settlements.find_surface(starting_point)
+        -- replace surface node with mcl_core:grass_path 
+        if surface_point
+        then
+          minetest.swap_node(surface_point,{name="mcl_core:grass_path"}) 
+          -- don't set y coordinate, surface might be too low or high
+          starting_point.x = surface_point.x
+          starting_point.z = surface_point.z
+        end
+        if distance <= 1 or
+        starting_point == end_point
+        then
+          break
+        end
+      end
+    end
+  end
+end

mods/MAPGEN/mcl_villages/utils.lua

@@ -0,0 +1,424 @@
+local c_dirt_with_grass             = minetest.get_content_id("mcl_core:dirt_with_grass")
+local c_dirt_with_snow              = minetest.get_content_id("mcl_core:dirt_with_grass_snow")
+--local c_dirt_with_dry_grass         = minetest.get_content_id("mcl_core:dirt_with_dry_grass")
+local c_podzol                      = minetest.get_content_id("mcl_core:podzol")
+local c_sand                        = minetest.get_content_id("mcl_core:sand")
+local c_desert_sand                 = minetest.get_content_id("mcl_core:redsand")
+--local c_silver_sand                 = minetest.get_content_id("mcl_core:silver_sand")
+--
+local c_air                         = minetest.get_content_id("air")
+local c_snow                        = minetest.get_content_id("mcl_core:snowblock")
+local c_fern_1                      = minetest.get_content_id("mcl_flowers:fern")
+local c_fern_2                      = minetest.get_content_id("mcl_flowers:fern")
+local c_fern_3                      = minetest.get_content_id("mcl_flowers:fern")
+local c_rose                        = minetest.get_content_id("mcl_flowers:poppy")
+local c_viola                       = minetest.get_content_id("mcl_flowers:blue_orchid")
+local c_geranium                    = minetest.get_content_id("mcl_flowers:allium")
+local c_tulip                       = minetest.get_content_id("mcl_flowers:tulip_orange")
+local c_dandelion_y                 = minetest.get_content_id("mcl_flowers:dandelion")
+local c_dandelion_w                 = minetest.get_content_id("mcl_flowers:oxeye_daisy")
+local c_bush_leaves                 = minetest.get_content_id("mcl_core:leaves")
+local c_bush_stem                   = minetest.get_content_id("mcl_core:tree")
+local c_a_bush_leaves               = minetest.get_content_id("mcl_core:acacialeaves")
+local c_a_bush_stem                 = minetest.get_content_id("mcl_core:acaciatree")
+local c_water_source                = minetest.get_content_id("mcl_core:water_source")
+local c_water_flowing                = minetest.get_content_id("mcl_core:water_flowing")
+-------------------------------------------------------------------------------
+-- function to copy tables
+-------------------------------------------------------------------------------
+function settlements.shallowCopy(original)
+	local copy = {}
+	for key, value in pairs(original) do
+		copy[key] = value
+	end
+	return copy
+end
+--
+--
+--
+function settlements.round(num, numDecimalPlaces)
+  local mult = 10^(numDecimalPlaces or 0)
+  return math.floor(num * mult + 0.5) / mult
+end
+
+-------------------------------------------------------------------------------
+-- function to find surface block y coordinate
+-------------------------------------------------------------------------------
+function settlements.find_surface_lvm(pos, minp)
+  --ab hier altes verfahren
+  local p6 = vector.new(pos)
+  local surface_mat = {
+    c_dirt_with_grass,            
+    c_dirt_with_snow,            
+    --c_dirt_with_dry_grass,        
+    c_podzol,
+    c_sand,                       
+    c_desert_sand
+  }
+  local cnt = 0
+  local itter -- count up or down
+  local cnt_max = 200
+  -- starting point for looking for surface
+  local vi = va:index(p6.x, p6.y, p6.z)
+  if data[vi] == nil then return nil end
+  local tmp = minetest.get_name_from_content_id(data[vi])
+  if data[vi] == c_air then
+    itter = -1
+  else
+    itter = 1
+  end
+  while cnt < cnt_max do
+    cnt = cnt+1
+    local vi = va:index(p6.x, p6.y, p6.z)
+--    local tmp = minetest.get_name_from_content_id(data[vi])
+--    if vi == nil 
+--    then 
+--      return nil 
+--    end
+    for i, mats in ipairs(surface_mat) do
+      local node_check = va:index(p6.x, p6.y+1, p6.z)
+      if node_check and vi and data[vi] == mats and 
+      (data[node_check] ~= c_water_source and
+        data[node_check] ~= c_water_flowing
+      ) 
+      then 
+        local tmp = minetest.get_name_from_content_id(data[node_check])
+        return p6, mats
+      end
+    end
+    p6.y = p6.y + itter
+    if p6.y < 0 then return nil end
+  end
+  return nil  --]]
+end
+-------------------------------------------------------------------------------
+-- function to find surface block y coordinate
+-- returns surface postion
+-------------------------------------------------------------------------------
+function settlements.find_surface(pos)
+	local p6 = vector.new(pos)
+	local cnt = 0
+	local itter -- count up or down
+	local cnt_max = 200
+	-- check, in which direction to look for surface
+	local surface_node = minetest.get_node_or_nil(p6)
+	if surface_node and string.find(surface_node.name,"air") then
+		itter = -1
+	else
+		itter = 1
+	end
+	-- go through nodes an find surface
+	while cnt < cnt_max do
+		cnt = cnt+1
+		minetest.forceload_block(p6)
+		surface_node = minetest.get_node_or_nil(p6)
+
+		if not surface_node then
+			-- Load the map at pos and try again
+			minetest.get_voxel_manip():read_from_map(p6, p6)
+			surface_node = minetest.get_node(p6)
+			if surface_node.name == "ignore" then
+				settlements.debug("find_surface1: nil or ignore")
+				return nil
+			end
+		end
+
+		-- if surface_node == nil or surface_node.name == "ignore" then
+		-- 	--return nil
+		-- 	local fl = minetest.forceload_block(p6)
+		-- 	if not fl then
+		--
+		-- 		return nil
+		-- 	end
+		-- end
+		--
+		-- Check Surface_node and Node above
+		--
+		if settlements.surface_mat[surface_node.name] then
+			local surface_node_plus_1 = minetest.get_node_or_nil({ x=p6.x, y=p6.y+1, z=p6.z})
+			if surface_node_plus_1 and surface_node and
+				(string.find(surface_node_plus_1.name,"air") or
+				string.find(surface_node_plus_1.name,"snow") or
+				string.find(surface_node_plus_1.name,"fern") or
+				string.find(surface_node_plus_1.name,"flower") or
+				string.find(surface_node_plus_1.name,"bush") or
+				string.find(surface_node_plus_1.name,"tree") or
+				string.find(surface_node_plus_1.name,"grass"))
+				then
+					settlements.debug("find_surface7: " ..surface_node.name.. " " .. surface_node_plus_1.name)
+					return p6, surface_node.name
+			else
+				settlements.debug("find_surface2: wrong surface+1")
+			end
+		else
+			settlements.debug("find_surface3: wrong surface "..surface_node.name.." at pos "..minetest.pos_to_string(p6))
+		end
+
+		p6.y = p6.y + itter
+		if p6.y < 0 then
+			settlements.debug("find_surface4: y<0")
+			return nil
+		end
+	end
+	settlements.debug("find_surface5: cnt_max overflow")
+	return nil
+end
+-------------------------------------------------------------------------------
+-- check distance for new building
+-------------------------------------------------------------------------------
+function settlements.check_distance(settlement_info, building_pos, building_size)
+  local distance
+  for i, built_house in ipairs(settlement_info) do
+    distance = math.sqrt(
+      ((building_pos.x - built_house["pos"].x)*(building_pos.x - built_house["pos"].x))+
+      ((building_pos.z - built_house["pos"].z)*(building_pos.z - built_house["pos"].z)))
+    if distance < building_size or 
+    distance < built_house["hsize"] 
+    then
+      return false
+    end
+  end
+  return true
+end
+-------------------------------------------------------------------------------
+-- save list of generated settlements
+-------------------------------------------------------------------------------
+function settlements.save()
+  local file = io.open(minetest.get_worldpath().."/settlements.txt", "w")
+  if file then
+    file:write(minetest.serialize(settlements_in_world))
+    file:close()
+  end
+end
+-------------------------------------------------------------------------------
+-- load list of generated settlements
+-------------------------------------------------------------------------------
+function settlements.load()
+  local file = io.open(minetest.get_worldpath().."/settlements.txt", "r")
+  if file then
+    local table = minetest.deserialize(file:read("*all"))
+    if type(table) == "table" then
+      return table
+    end
+  end
+  return {}
+end
+-------------------------------------------------------------------------------
+-- check distance to other settlements
+-------------------------------------------------------------------------------
+function settlements.check_distance_other_settlements(center_new_chunk)
+--  local min_dist_settlements = 300
+  for i, pos in ipairs(settlements_in_world) do 
+    local distance = vector.distance(center_new_chunk, pos)
+--    minetest.chat_send_all("dist ".. distance)
+    if distance < settlements.min_dist_settlements then
+      return false
+    end
+  end  
+  return true
+end
+-------------------------------------------------------------------------------
+-- fill chests
+-------------------------------------------------------------------------------
+function settlements.fill_chest(pos, pr)
+  -- find chests within radius
+  --local chestpos = minetest.find_node_near(pos, 6, {"mcl_core:chest"})
+  local chestpos = pos
+  -- initialize chest (mts chests don't have meta)
+  local meta = minetest.get_meta(chestpos)
+  if meta:get_string("infotext") ~= "Chest" then
+	-- For MineClone2 0.70 or before
+	-- minetest.registered_nodes["mcl_chests:chest"].on_construct(chestpos)
+	--
+	-- For MineClone2 after commit 09ab1482b5 (the new entity chests)
+    minetest.registered_nodes["mcl_chests:chest_small"].on_construct(chestpos)
+  end
+  -- fill chest
+  local inv = minetest.get_inventory( {type="node", pos=chestpos} )
+  -- always
+  inv:add_item("main", "mcl_core:apple "..pr:next(1,3))
+  -- low value items
+  if pr:next(0,1) < 1 then
+    inv:add_item("main", "mcl_farming:bread "..pr:next(0,3))
+    inv:add_item("main", "mcl_core:iron_ingot "..pr:next(0,3))
+    inv:add_item("main", "mcl_farming:melon_item "..pr:next(0,3))
+    inv:add_item("main", "mcl_farming:carrot_item "..pr:next(0,3))
+	--[[
+    -- additional fillings when farmin mod enabled
+    if minetest.get_modpath("farming") ~= nil and farming.mod == "redo" then
+      if pr:next(0,1) < 1 then
+        inv:add_item("main", "mcl_farming:melon_item "..pr:next(0,3))
+        inv:add_item("main", "mcl_farming:carrot_item "..pr:next(0,3))
+        inv:add_item("main", "farming:corn "..pr:next(0,3))
+      end
+    end
+	--]]
+  end
+  -- medium value items
+  if pr:next(0,3) < 1 then
+    inv:add_item("main", "mcl_tools:pick_iron "..pr:next(0,1))
+    inv:add_item("main", "mcl_tools:pick_stone "..pr:next(0,1))
+    inv:add_item("main", "mcl_fire:flint_and_steel "..pr:next(0,1))
+    inv:add_item("main", "mcl_buckets:bucket_empty "..pr:next(0,1))
+    inv:add_item("main", "mcl_tools:sword_iron "..pr:next(0,1))
+  end
+end
+
+-------------------------------------------------------------------------------
+-- initialize furnace
+-------------------------------------------------------------------------------
+function settlements.initialize_furnace(pos)
+  -- find chests within radius
+  local furnacepos = minetest.find_node_near(pos, 
+    7, --radius
+    {"mcl_furnaces:furnace"})
+  -- initialize furnacepos (mts furnacepos don't have meta)
+  if furnacepos 
+  then
+    local meta = minetest.get_meta(furnacepos)
+    if meta:get_string("infotext") ~= "furnace" 
+    then
+      minetest.registered_nodes["mcl_furnaces:furnace"].on_construct(furnacepos)
+    end
+  end
+end
+-------------------------------------------------------------------------------
+-- initialize anvil
+-------------------------------------------------------------------------------
+function settlements.initialize_anvil(pos)
+  -- find chests within radius
+  local anvilpos = minetest.find_node_near(pos, 
+    7, --radius
+    {"mcl_anvils:anvil"})
+  -- initialize anvilpos (mts anvilpos don't have meta)
+  if anvilpos 
+  then
+    local meta = minetest.get_meta(anvilpos)
+    if meta:get_string("infotext") ~= "anvil" 
+    then
+      minetest.registered_nodes["mcl_anvils:anvil"].on_construct(anvilpos)
+    end
+  end
+end
+-------------------------------------------------------------------------------
+-- initialize furnace, chests, anvil
+-------------------------------------------------------------------------------
+local building_all_info
+function settlements.initialize_nodes(settlement_info, pr)
+	for i, built_house in ipairs(settlement_info) do
+		for j, schem in ipairs(schematic_table) do
+			if settlement_info[i]["name"] == schem["name"] then
+				building_all_info = schem
+				break
+			end
+		end
+
+		local width = building_all_info["hwidth"] 
+		local depth = building_all_info["hdepth"] 
+		local height = building_all_info["hheight"] 
+
+		local p = settlement_info[i]["pos"]
+		for yi = 1,height do
+			for xi = 0,width do
+				for zi = 0,depth do
+					local ptemp = {x=p.x+xi, y=p.y+yi, z=p.z+zi}
+					local node = minetest.get_node(ptemp) 
+					if node.name == "mcl_furnaces:furnace" or
+						node.name == "mcl_chests:chest" or
+						node.name == "mcl_anvils:anvil" then
+							minetest.registered_nodes[node.name].on_construct(ptemp)
+					end
+					-- when chest is found -> fill with stuff
+					if node.name == "mcl_chests:chest" then
+						minetest.after(3, settlements.fill_chest, ptemp, pr)
+					end
+				end
+			end
+		end
+	end
+end
+-------------------------------------------------------------------------------
+-- randomize table
+-------------------------------------------------------------------------------
+function shuffle(tbl, pr)
+	local table = settlements.shallowCopy(tbl)
+	local size = #table
+	for i = size, 1, -1 do
+		local rand = pr:next(1, size)
+		table[i], table[rand] = table[rand], table[i]
+	end
+	return table
+end
+-------------------------------------------------------------------------------
+-- evaluate heightmap
+-------------------------------------------------------------------------------
+function settlements.evaluate_heightmap()
+  local heightmap = minetest.get_mapgen_object("heightmap")
+  -- max height and min height, initialize with impossible values for easier first time setting
+  local max_y = -50000
+  local min_y = 50000
+  -- only evaluate the center square of heightmap 40 x 40
+  local square_start = 1621
+  local square_end = 1661
+  for j = 1 , 40, 1 do
+    for i = square_start, square_end, 1 do
+      -- skip buggy heightmaps, return high value
+      if heightmap[i] == -31000 or
+      heightmap[i] == 31000
+      then
+        return max_height_difference + 1
+      end
+      if heightmap[i] < min_y
+      then
+        min_y = heightmap[i]
+      end
+      if heightmap[i] > max_y
+      then
+        max_y = heightmap[i]
+      end
+    end
+    -- set next line
+    square_start = square_start + 80
+    square_end = square_end + 80
+  end
+  -- return the difference between highest and lowest pos in chunk
+  local height_diff = max_y - min_y
+  -- filter buggy heightmaps
+  if height_diff <= 1 
+  then
+    return max_height_difference + 1
+  end
+  -- debug info
+  settlements.debug("heightdiff ".. height_diff)
+  return height_diff
+end
+-------------------------------------------------------------------------------
+-- get LVM of current chunk
+-------------------------------------------------------------------------------
+function settlements.getlvm(minp, maxp)
+  local vm = minetest.get_voxel_manip()
+  local emin, emax = vm:read_from_map(minp, maxp)
+  local va = VoxelArea:new{
+    MinEdge = emin,
+    MaxEdge = emax
+  }    
+  local data = vm:get_data()
+  return vm, data, va, emin, emax
+end
+-------------------------------------------------------------------------------
+-- get LVM of current chunk
+-------------------------------------------------------------------------------
+function settlements.setlvm(vm, data)
+  -- Write data
+  vm:set_data(data)
+  vm:write_to_map(true)
+end
+-------------------------------------------------------------------------------
+-- Set array to list
+-- https://stackoverflow.com/questions/656199/search-for-an-item-in-a-lua-list
+-------------------------------------------------------------------------------
+function settlements.Set (list)
+  local set = {}
+  for _, l in ipairs(list) do set[l] = true end
+  return set
+end

mods/MAPGEN/tsm_railcorridors/init.lua

@@ -15,7 +15,11 @@ end
 -- Probability for every newly generated mapchunk to get corridors
 local probability_railcaves_in_mapchunk = P(0.33333)
 setting = tonumber(minetest.settings:get("tsm_railcorridors_probability_railcaves_in_mapchunk"))
-if setting then
+-- Extra check to prevent mod griefing in singlenode, mcimported worlds.
+local mg_name = minetest.get_mapgen_setting("mg_name")
+if mg_name == "singlenode" then
+	probability_railcaves_in_mapchunk = P(0)
+elseif setting then
 	probability_railcaves_in_mapchunk = P(setting)
 end
 

settingtypes.txt

@@ -91,6 +91,9 @@ flame_sound (Flame sound) bool true
 # Form: Image height / Image width
 fire_animation_frames (Fire Animation Frames) int 8
 
+# Whether to animate chests when open / close
+animated_chests (Animated chests) bool true
+
 [Experimental]
 # Whether ice is translucent. If disabled, ice is fully opaque.
 #
@@ -126,3 +129,7 @@ mcl_superflat_classic (Classic superflat map generation) bool false
 # WARNING: This setting has quite poor performance and can slow down your
 # game by a lot.
 mcl_node_particles (Block particles detail level) enum none high,medium,low,none
+
+
+# If enabled, will run an LBM to fix the top 1/2 of double plants in mcimported worlds; defaults to true.
+fix_doubleplants (Mcimport double plant fixes) bool true