Fix Structure loot generation (again) lol

and keep portal open

mods/CORE/mcl_init/init.lua

@@ -162,7 +162,8 @@ end
 mcl_vars.mg_end_min = -27073 -- Carefully chosen to be at a mapchunk border
 mcl_vars.mg_end_max_official = mcl_vars.mg_end_min + minecraft_height_limit
 mcl_vars.mg_end_max = mcl_vars.mg_overworld_min - 2000
-mcl_vars.mg_end_platform_pos = { x = 100, y = mcl_vars.mg_end_min + 74, z = 0 }
+mcl_vars.mg_end_platform_pos = { x = 100, y = mcl_vars.mg_end_min + 64, z = 0 }
+mcl_vars.mg_end_exit_portal_pos = vector.new(0, mcl_vars.mg_end_min + 71, 0)
 
 -- Realm barrier used to safely separate the End from the void below the Overworld
 mcl_vars.mg_realm_barrier_overworld_end_max = mcl_vars.mg_end_max

mods/ENTITIES/mcl_mobs/api.lua

@@ -303,10 +303,13 @@ end
 
 -- set and return valid yaw
 local set_yaw = function(self, yaw, delay, dtime)
+
+	if self.noyaw then return end
 	if true then
 		self.object:set_yaw(yaw)
 		return yaw
 	end
+
 	if not yaw or yaw ~= yaw then
 		yaw = 0
 	end
@@ -4069,6 +4072,7 @@ minetest.register_entity(name, {
 	ignited_by_sunlight = def.ignited_by_sunlight or false,
 	spawn_in_group = def.spawn_in_group,
 	spawn_in_group_min = def.spawn_in_group_min,
+	noyaw = def.noyaw or false,
 	-- End of MCL2 extensions
 
 	on_spawn = def.on_spawn,

mods/ENTITIES/mobs_mc/ender_dragon.lua

@@ -4,6 +4,50 @@
 
 local S = minetest.get_translator("mobs_mc")
 
+local BEAM_CHECK_FREQUENCY = 2
+local POS_CHECK_FREQUENCY = 15
+local HEAL_AMMOUNT = 37
+
+local function heal(self)
+	local o = self.object
+	self.health = math.min(self.hp_max,self.health + HEAL_AMMOUNT)
+end
+local function check_beam(self)
+	for _, obj in ipairs(minetest.get_objects_inside_radius(self.object:get_pos(), 80)) do
+		local luaentity = obj:get_luaentity()
+		if luaentity and luaentity.name == "mcl_end:crystal" then
+			if luaentity.beam then
+				if luaentity.beam == self.beam then
+					heal(self)
+					break
+				end
+			else
+				if self.beam then
+					self.beam:remove()
+				end
+				minetest.add_entity(self.object:get_pos(), "mcl_end:crystal_beam"):get_luaentity():init(self.object, obj)
+				break
+			end
+		end
+	end
+end
+
+local function check_pos(self)
+	if self._portal_pos then
+		-- migrate old format
+		if type(self._portal_pos) == "string" then
+			self._portal_pos = minetest.string_to_pos(self._portal_pos)
+		end
+		local portal_center = vector.add(self._portal_pos, vector.new(0, 11, 0))
+		local pos = self.object:get_pos()
+		if vector.distance(pos, portal_center) > 50 then
+			self.object:set_pos(self._last_good_pos or portal_center)
+		else
+			self._last_good_pos = pos
+		end
+	end
+end
+
 mcl_mobs:register_mob("mobs_mc:enderdragon", {
 	description = S("Ender Dragon"),
 	type = "monster",
@@ -23,7 +67,7 @@ mcl_mobs:register_mob("mobs_mc:enderdragon", {
 		{"mobs_mc_dragon.png"},
 	},
 	visual_size = {x=3, y=3},
-	view_range = 35,
+	view_range = 64,
 	walk_velocity = 6,
 	run_velocity = 6,
 	can_despawn = false,
@@ -61,45 +105,26 @@ mcl_mobs:register_mob("mobs_mc:enderdragon", {
 		run_start = 0,		run_end = 20,
 	},
 	ignores_nametag = true,
-	do_custom = function(self)
+	do_custom = function(self,dtime)
 		mcl_bossbars.update_boss(self.object, "Ender Dragon", "light_purple")
-		for _, obj in ipairs(minetest.get_objects_inside_radius(self.object:get_pos(), 80)) do
-			local luaentity = obj:get_luaentity()
-			if luaentity and luaentity.name == "mcl_end:crystal" then
-				if luaentity.beam then
-					if luaentity.beam == self.beam then
-						break
-					end
-				else
-					if self.beam then
-						self.beam:remove()
-					end
-					minetest.add_entity(self.object:get_pos(), "mcl_end:crystal_beam"):get_luaentity():init(self.object, obj)
-					break
-				end
-			end
+		if self._pos_timer == nil or self._pos_timer > POS_CHECK_FREQUENCY then
+			self._pos_timer = 0
+			check_pos(self)
 		end
-		if self._portal_pos then
-			-- migrate old format
-			if type(self._portal_pos) == "string" then
-				self._portal_pos = minetest.string_to_pos(self._portal_pos)
-			end
-			local portal_center = vector.add(self._portal_pos, vector.new(3, 11, 3))
-			local pos = self.object:get_pos()
-			if vector.distance(pos, portal_center) > 50 then
-				self.object:set_pos(self._last_good_pos or portal_center)
-			else
-				self._last_good_pos = pos
-			end
+		if self._beam_timer == nil or self._beam_timer > BEAM_CHECK_FREQUENCY then
+			self._beam_timer = 0
+			check_beam(self)
 		end
+		self._beam_timer = self._beam_timer + dtime
+		self._pos_timer = self._pos_timer + dtime
 	end,
-	on_die = function(self, pos)
+	on_die = function(self, pos, cmi_cause)
 		if self._portal_pos then
 			mcl_portals.spawn_gateway_portal()
-			mcl_structures.call_struct(self._portal_pos, "end_exit_portal_open")
+			mcl_structures.place_structure(self._portal_pos,mcl_structures.registered_structures["end_exit_portal_open"],PseudoRandom(minetest.get_mapgen_setting("seed")),-1)
 			if self._initial then
 				mcl_experience.throw_xp(pos, 11500) -- 500 + 11500 = 12000
-				minetest.set_node(vector.add(self._portal_pos, vector.new(3, 5, 3)), {name = "mcl_end:dragon_egg"})
+				minetest.set_node(vector.add(self._portal_pos, vector.new(0, 5, 0)), {name = "mcl_end:dragon_egg"})
 			end
 		end
 	end,

mods/ENTITIES/mobs_mc/enderman.lua

@@ -632,7 +632,12 @@ mcl_mobs:spawn_specific(
 "end",
 "ground",
 {
-"End"
+"End",
+"EndIsland",
+"EndMidlands",
+"EndBarrens",
+"EndBorder",
+"EndSmallIslands"
 },
 0,
 minetest.LIGHT_MAX+1,
@@ -797,7 +802,7 @@ mcl_mobs:spawn_specific(
 "ground",
 {
 "Nether",
-"SoulsandVall3ey",
+"SoulsandValley",
 },
 0,
 11,

mods/ENTITIES/mobs_mc/shulker.lua

@@ -9,8 +9,27 @@ local S = minetest.get_translator("mobs_mc")
 --################### SHULKER
 --###################
 
+local adjacents = {
+	vector.new(1,0,0),
+	vector.new(-1,0,0),
+	vector.new(0,1,0),
+	vector.new(0,-1,0),
+	vector.new(0,0,1),
+	vector.new(0,0,-1),
+}
+local function check_spot(pos)
+	pos = vector.offset(pos,0,0.5,0)
+	local n = minetest.get_node(pos)
+	if n.name ~="air" then return false end
+	for _,a in pairs(adjacents) do
+		local p = vector.add(pos,a)
+		local pn = minetest.get_node(p)
+		if minetest.get_item_group(pn.name,"solid") > 0 then return true end
+	end
+	return false
+end
+local pr = PseudoRandom(os.time()*(-334))
 -- animation 45-80 is transition between passive and attack stance
-
 mcl_mobs:register_mob("mobs_mc:shulker", {
 	description = S("Shulker"),
 	type = "monster",
@@ -35,6 +54,8 @@ mcl_mobs:register_mob("mobs_mc:shulker", {
 	walk_chance = 0,
 	knock_back = false,
 	jump = false,
+	can_despawn = false,
+	fall_speed = 0,
 	drops = {
 		{name = "mcl_mobitems:shulker_shell",
 		chance = 2,
@@ -44,15 +65,90 @@ mcl_mobs:register_mob("mobs_mc:shulker", {
 		looting_factor = 0.0625},
 	},
 	animation = {
-		stand_speed = 25, walk_speed = 25, run_speed = 50, punch_speed = 25,
+		stand_speed = 25, walk_speed = 0, run_speed = 50, punch_speed = 25,
 		speed_normal = 25,		speed_run = 50,
-		stand_start = 0,		stand_end = 45,
-		walk_start = 0,		walk_end = 45,
-		run_start = 0,		run_end = 45,
+		stand_start = 0,		stand_end = 25,
+		walk_start = 25,		walk_end = 45,
+		run_start = 45,		run_end = 85,
         punch_start = 80,  punch_end = 100,
 	},
 	view_range = 16,
-	fear_height = 4,
+	fear_height = 0,
+	noyaw = true,
+	do_custom = function(self,dtime)
+		local pos = self.object:get_pos()
+		if math.floor(self.object:get_yaw()) ~=0 then
+			self.object:set_yaw(0)
+			mcl_mobs:yaw(self, 0, 0, dtime)
+		end
+		if self.state == "walk" or self.state == "stand" then
+			self.state = "stand"
+			mcl_mobs:set_animation(self, "stand")
+		end
+		if self.state == "attack" then
+			mcl_mobs:set_animation(self, "punch")
+		end
+		self.path.way = false
+		self.look_at_players = false
+		if not check_spot(pos) then
+			self:teleport(nil)
+		end
+	end,
+	do_punch = function(self, puncher, time_from_last_punch, tool_capabilities, dir, damage)
+		self:teleport(puncher)
+	end,
+	do_teleport = function(self, target)
+		if target ~= nil then
+			local target_pos = target:get_pos()
+			-- Find all solid nodes below air in a 10×10×10 cuboid centered on the target
+			local nodes = minetest.find_nodes_in_area_under_air(vector.subtract(target_pos, 5), vector.add(target_pos, 5), {"group:solid", "group:cracky", "group:crumbly"})
+			local telepos
+			if nodes ~= nil then
+				if #nodes > 0 then
+					-- Up to 64 attempts to teleport
+					for n=1, math.min(64, #nodes) do
+						local r = pr:next(1, #nodes)
+						local nodepos = nodes[r]
+						local tg = vector.offset(nodepos,0,1,0)
+						if check_spot(tg) then
+							telepos = tg
+							node_ok = true
+						end
+					end
+					if telepos then
+						self.object:set_pos(telepos)
+					end
+				end
+			end
+		else
+			local pos = self.object:get_pos()
+			-- Up to 8 top-level attempts to teleport
+			for n=1, 8 do
+				local node_ok = false
+				-- We need to add (or subtract) different random numbers to each vector component, so it couldn't be done with a nice single vector.add() or .subtract():
+				local randomCube = vector.new( pos.x + 8*(pr:next(0,16)-8), pos.y + 8*(pr:next(0,16)-8), pos.z + 8*(pr:next(0,16)-8) )
+				local nodes = minetest.find_nodes_in_area_under_air(vector.subtract(randomCube, 4), vector.add(randomCube, 4), {"group:solid", "group:cracky", "group:crumbly"})
+				if nodes ~= nil then
+					if #nodes > 0 then
+						-- Up to 8 low-level (in total up to 8*8 = 64) attempts to teleport
+						for n=1, math.min(8, #nodes) do
+							local r = pr:next(1, #nodes)
+							local nodepos = nodes[r]
+							local tg = vector.offset(nodepos,0,1,0)
+							if check_spot(tg) then
+								self.object:set_pos(tg)
+								node_ok = true
+								break
+							end
+						end
+					end
+				end
+				if node_ok then
+					 break
+				end
+			end
+		end
+	end,
 })
 
 -- bullet arrow (weapon)
@@ -82,7 +178,7 @@ mcl_mobs:register_arrow("mobs_mc:shulkerbullet", {
 
 
 mcl_mobs:register_egg("mobs_mc:shulker", S("Shulker"), "mobs_mc_spawn_icon_shulker.png", 0)
-
+--[[
 mcl_mobs:spawn_specific(
 "mobs_mc:shulker",
 "end",
@@ -97,3 +193,4 @@ minetest.LIGHT_MAX+1,
 2,
 mcl_vars.mg_end_min,
 mcl_vars.mg_end_max)
+--]]

mods/HUD/mcl_inventory/init.lua

@@ -75,7 +75,7 @@ local function set_inventory(player, armor_change_only)
 	local form = "size[9,8.75]" ..
 		"background[-0.19,-0.25;9.41,9.49;crafting_formspec_bg.png]" ..
 		mcl_player.get_player_formspec_model(player, 1.0, 0.0, 2.25, 4.5, "") ..
-		
+
 		-- Armor
 		"list[current_player;armor;0,0;1,1;1]" ..
 		"list[current_player;armor;0,1;1,1;2]" ..
@@ -88,7 +88,7 @@ local function set_inventory(player, armor_change_only)
 		"list[current_player;offhand;3,2;1,1]" ..
 		mcl_formspec.get_itemslot_bg(3,2,1,1) ..
 		armor_slot_imgs ..
-		
+
 		-- Craft and inventory
 		"label[0,4;"..F(minetest.colorize("#313131", S("Inventory"))) .. "]" ..
 		"list[current_player;main;0,4.5;9,3;9]" ..
@@ -100,34 +100,34 @@ local function set_inventory(player, armor_change_only)
 		mcl_formspec.get_itemslot_bg(0, 7.74, 9, 1) ..
 		mcl_formspec.get_itemslot_bg(4, 1,2, 2) ..
 		mcl_formspec.get_itemslot_bg(7, 1.5, 1, 1) ..
-		
+
 		-- Crafting guide button
 		"image_button[4.5,3;1,1;craftguide_book.png;__mcl_craftguide;]" ..
 		"tooltip[__mcl_craftguide;"..F(S("Recipe book")) .. "]" ..
-		
+
 		-- Help button
 		"image_button[8,3;1,1;doc_button_icon_lores.png;__mcl_doc;]" ..
 		"tooltip[__mcl_doc;" .. F(S("Help")) .. "]"
-		
+
 	-- Skins button
 	if minetest.global_exists("mcl_skins") then
 		form = form ..
 			"image_button[3,3;1,1;mcl_skins_button.png;__mcl_skins;]" ..
 			"tooltip[__mcl_skins;" .. F(S("Select player skin")) .. "]"
 	end
-	
+
 	form = form ..
 		-- Achievements button
 		"image_button[7,3;1,1;mcl_achievements_button.png;__mcl_achievements;]" ..
 		"tooltip[__mcl_achievements;" .. F(S("Achievements")) .. "]" ..
-		
+
 		-- For shortcuts
 		"listring[current_player;main]" ..
 		"listring[current_player;armor]" ..
 		"listring[current_player;main]" ..
 		"listring[current_player;craft]" ..
 		"listring[current_player;main]"
-	
+
 	player:set_inventory_formspec(form)
 end
 
@@ -218,6 +218,11 @@ minetest.register_on_punchnode(function(pos, node, puncher, pointed_thing)
 	end
 end)
 
+--Don't subtract from inv when placing in gamemode-creative
+minetest.register_on_placenode(function(pos, newnode, placer, oldnode, itemstack, pointed_thing)
+	if minetest.is_creative_enabled(placer:get_player_name()) then return true end
+end)
+
 local function in_table(n,h)
 	for k,v in pairs(h) do
 		if v == n then return true end

mods/ITEMS/mcl_deepslate/init.lua

@@ -1,21 +1,15 @@
 local modname = minetest.get_current_modname()
 local S = minetest.get_translator(modname)
 
---local layer_max = mcl_worlds.layer_to_y(16)
---local layer_min = mcl_vars.mg_overworld_min
-
 local copper_mod = minetest.get_modpath("mcl_copper")
-
 local cobble = "mcl_deepslate:deepslate_cobbled"
 local stick = "mcl_core:stick"
 
---[[
-local mountains = {
-	"ExtremeHills", "ExtremeHills_beach", "ExtremeHills_ocean", "ExtremeHills_deep_ocean", "ExtremeHills_underground",
-	"ExtremeHills+", "ExtremeHills+_ocean", "ExtremeHills+_deep_ocean", "ExtremeHills+_underground",
-	"ExtremeHillsM", "ExtremeHillsM_ocean", "ExtremeHillsM_deep_ocean", "ExtremeHillsM_underground",
-}
-]]
+local function spawn_silverfish(pos, oldnode, oldmetadata, digger)
+	if not minetest.is_creative_enabled("") then
+		minetest.add_entity(pos, "mobs_mc:silverfish")
+	end
+end
 
 minetest.register_node("mcl_deepslate:deepslate", {
 	description = S("Deepslate"),
@@ -34,12 +28,6 @@ minetest.register_node("mcl_deepslate:deepslate", {
 	_mcl_silk_touch_drop = true,
 })
 
-local function spawn_silverfish(pos, oldnode, oldmetadata, digger)
-	if not minetest.is_creative_enabled("") then
-		minetest.add_entity(pos, "mobs_mc:silverfish")
-	end
-end
-
 minetest.register_node("mcl_deepslate:infested_deepslate", {
 	description = S("Infested Deepslate"),
 	_doc_items_longdesc = S("An infested block is a block from which a silverfish will pop out when it is broken. It looks identical to its normal counterpart."),
@@ -198,173 +186,6 @@ minetest.register_node("mcl_deepslate:deepslate_with_redstone_lit", {
 	},
 })
 
-minetest.register_craft({
-	type = "cooking",
-	output = "mesecons:redstone",
-	recipe = "mcl_deepslate:deepslate_with_redstone",
-	cooktime = 10,
-})
-
---[[ Commented out for now because there the discussion how to handle this is ongoing
-minetest.register_ore({
-    ore_type       = "blob",
-    ore            = "mcl_deepslate:deepslate",
-    wherein        = { "mcl_core:stone" },
-    clust_scarcity = 200,
-    clust_num_ores = 100,
-    clust_size     = 10,
-    y_min          = layer_min,
-    y_max          = layer_max,
-    noise_params = {
-        offset  = 0,
-        scale   = 1,
-        spread  = { x = 250, y = 250, z = 250 },
-        seed    = 12345,
-        octaves = 3,
-        persist = 0.6,
-        lacunarity = 2,
-        flags = "defaults",
-    }
-})
-
-minetest.register_ore({
-	ore_type       = "blob",
-	ore            = "mcl_deepslate:tuff",
-	wherein        = { "mcl_core:stone", "mcl_core:diorite", "mcl_core:andesite", "mcl_core:granite", "mcl_deepslate:deepslate" },
-	clust_scarcity = 10*10*10,
-	clust_num_ores = 58,
-	clust_size     = 7,
-	y_min          = layer_min,
-    y_max          = layer_max,
-	noise_params = {
-		offset  = 0,
-		scale   = 1,
-		spread  = {x=250, y=250, z=250},
-		seed    = 12345,
-		octaves = 3,
-		persist = 0.6,
-		lacunarity = 2,
-		flags = "defaults",
-	}
-})
-
-minetest.register_ore({
-	ore_type       = "scatter",
-	ore            = "mcl_deepslate:infested_deepslate",
-	wherein        = "mcl_deepslate:deepslate",
-	clust_scarcity = 26 * 26 * 26,
-	clust_num_ores = 3,
-	clust_size     = 2,
-	y_min          = layer_min,
-	y_max          = layer_max,
-	biomes         = mountains,
-})
-
-minetest.register_ore({
-	ore_type       = "scatter",
-	ore            = "mcl_core:water_source",
-	wherein        = "mcl_deepslate:deepslate",
-	clust_scarcity = 9000,
-	clust_num_ores = 1,
-	clust_size     = 1,
-	y_min          = mcl_worlds.layer_to_y(5),
-	y_max          = layer_max,
-})
-
-minetest.register_ore({
-	ore_type       = "scatter",
-	ore            = "mcl_core:lava_source",
-	wherein        = "mcl_deepslate:deepslate",
-	clust_scarcity = 2000,
-	clust_num_ores = 1,
-	clust_size     = 1,
-	y_min          = mcl_worlds.layer_to_y(1),
-	y_max          = mcl_worlds.layer_to_y(10),
-})
-
-minetest.register_ore({
-	ore_type       = "scatter",
-	ore            = "mcl_core:lava_source",
-	wherein        = "mcl_deepslate:deepslate",
-	clust_scarcity = 9000,
-	clust_num_ores = 1,
-	clust_size     = 1,
-	y_min          = mcl_worlds.layer_to_y(11),
-	y_max          = layer_max,
-})
-
-
-if minetest.settings:get_bool("mcl_generate_ores", true) then
-	local stonelike = { "mcl_core:stone", "mcl_core:diorite", "mcl_core:andesite", "mcl_core:granite" }
-	local function register_ore_mg(ore, scarcity, num, size, y_min, y_max, biomes)
-		biomes = biomes or ""
-		minetest.register_ore({
-			ore_type       = "scatter",
-			ore            = ore,
-			wherein        = { "mcl_deepslate:deepslate", "mcl_deepslate:tuff" },
-			clust_scarcity = scarcity,
-			clust_num_ores = num,
-			clust_size     = size,
-			y_min          = y_min,
-			y_max          = y_max,
-			biomes		   = biomes,
-		})
-	end
-	local ore_mapgen = {
-		{ "coal", 1575, 5, 3, layer_min, layer_max },
-		{ "coal", 1530, 8, 3, layer_min, layer_max },
-		{ "coal", 1500, 12, 3, layer_min, layer_max },
-		{ "iron", 830, 5, 3, layer_min, layer_max },
-		{ "gold", 4775, 5, 3, layer_min, layer_max },
-		{ "gold", 6560, 7, 3, layer_min, layer_max },
-		{ "diamond", 10000, 4, 3, layer_min, mcl_worlds.layer_to_y(12) },
-		{ "diamond", 5000, 2, 3, layer_min, mcl_worlds.layer_to_y(12) },
-		{ "diamond", 10000, 8, 3, layer_min, mcl_worlds.layer_to_y(12) },
-		{ "diamond", 20000, 1, 1, mcl_worlds.layer_to_y(13), mcl_worlds.layer_to_y(15) },
-		{ "diamond", 20000, 2, 2, mcl_worlds.layer_to_y(13), mcl_worlds.layer_to_y(15) },
-		{ "redstone", 500, 4, 3, layer_min, mcl_worlds.layer_to_y(13) },
-		{ "redstone", 800, 7, 4, layer_min, mcl_worlds.layer_to_y(13) },
-		{ "redstone", 1000, 4, 3, mcl_worlds.layer_to_y(13), mcl_worlds.layer_to_y(15) },
-		{ "redstone", 1600, 7, 4, mcl_worlds.layer_to_y(13), mcl_worlds.layer_to_y(15) },
-		{ "lapis", 10000, 7, 4, mcl_worlds.layer_to_y(14), layer_max },
-		{ "lapis", 12000, 6, 3, mcl_worlds.layer_to_y(10), mcl_worlds.layer_to_y(13) },
-		{ "lapis", 14000, 5, 3, mcl_worlds.layer_to_y(6), mcl_worlds.layer_to_y(9) },
-		{ "lapis", 16000, 4, 3, mcl_worlds.layer_to_y(2), mcl_worlds.layer_to_y(5) },
-		{ "lapis", 18000, 3, 2, mcl_worlds.layer_to_y(0), mcl_worlds.layer_to_y(2) },
-	}
-	for _, o in pairs(ore_mapgen) do
-		register_ore_mg("mcl_deepslate:deepslate_with_"..o[1], o[2], o[3], o[4], o[5], o[6])
-	end
-	if minetest.get_mapgen_setting("mg_name") == "v6" then
-		register_ore_mg("mcl_deepslate:deepslate_with_emerald", 14340, 1, 1, layer_min, layer_max)
-	else
-		register_ore_mg("mcl_deepslate:deepslate_with_emerald", 16384, 1, 1, mcl_worlds.layer_to_y(4), layer_max, mountains)
-	end
-	if copper_mod then
-		register_ore_mg("mcl_deepslate:deepslate_with_copper", 830, 5, 3, layer_min, layer_max)
-		minetest.register_ore({
-			ore_type       = "scatter",
-			ore            = "mcl_copper:stone_with_copper",
-			wherein        = stonelike,
-			clust_scarcity = 830,
-			clust_num_ores = 5,
-			clust_size     = 3,
-			y_min          = mcl_vars.mg_overworld_min,
-			y_max          = mcl_worlds.layer_to_y(39),
-		})
-		minetest.register_ore({
-			ore_type       = "scatter",
-			ore            = "mcl_copper:stone_with_copper",
-			wherein        = stonelike,
-			clust_scarcity = 1660,
-			clust_num_ores = 4,
-			clust_size     = 2,
-			y_min          = mcl_worlds.layer_to_y(40),
-			y_max          = mcl_worlds.layer_to_y(63),
-		})
-	end
-end
---]]
 local function register_deepslate_variant(item, desc, longdesc)
 	local texture = desc:lower():gsub("% ", "_")
 	local def = {
@@ -424,6 +245,13 @@ for _, p in pairs({ "bricks", "tiles" }) do
 	})
 end
 
+minetest.register_craft({
+	type = "cooking",
+	output = "mesecons:redstone",
+	recipe = "mcl_deepslate:deepslate_with_redstone",
+	cooktime = 10,
+})
+
 minetest.register_craft({
 	type = "cooking",
 	output = "mcl_deepslate:deepslate",

mods/ITEMS/mcl_end/end_crystal.lua

@@ -65,12 +65,15 @@ local function spawn_crystal(pos)
 		crystals[i] = find_crystal(crystal_pos)
 		if not crystals[i] then return end
 	end
+	for _,o in pairs(minetest.get_objects_inside_radius(pos,64)) do
+		local l = o:get_luaentity()
+		if l and l.name == "mobs_mc:enderdragon" then return end
+	end
 	for _, crystal in pairs(crystals) do
 		crystal_explode(crystal)
 	end
-	local portal_pos = vector.add(portal_center, vector.new(-3, -1, -3))
-	mcl_structures.call_struct(portal_pos, "end_exit_portal")
-	minetest.add_entity(vector.add(portal_pos, vector.new(3, 11, 3)), "mobs_mc:enderdragon"):get_luaentity()._portal_pos = portal_pos
+	local portal_pos = vector.add(portal_center, vector.new(0, -1, 0))
+	mcl_structures.place_structure(portal_pos,mcl_structures.registered_structures["end_exit_portal"],PseudoRandom(minetest.get_mapgen_setting("seed")),-1)
 end
 
 minetest.register_entity("mcl_end:crystal", {

mods/ITEMS/mcl_itemframes/init.lua

@@ -1,3 +1,4 @@
+mcl_itemframes = {}
 local S = minetest.get_translator(minetest.get_current_modname())
 
 local VISUAL_SIZE = 0.3
@@ -132,6 +133,7 @@ local update_item_entity = function(pos, node, param2)
 		end
 	end
 end
+mcl_itemframes.update_item_entity = update_item_entity
 
 local drop_item = function(pos, node, meta, clicker)
 	local cname = ""

mods/ITEMS/mcl_portals/mod.conf

@@ -1,4 +1,4 @@
 name = mcl_portals
 description = Adds buildable portals to the Nether and End dimensions.
-depends = mcl_nether, mcl_end, mcl_particles, mcl_spawn, mcl_credits
+depends = mcl_nether, mcl_end, mcl_particles, mcl_spawn, mcl_credits, mcl_structures
 optional_depends = awards, doc

mods/ITEMS/mcl_portals/portal_nether.lua

@@ -1,4 +1,6 @@
-local S = minetest.get_translator(minetest.get_current_modname())
+local modname = minetest.get_current_modname()
+local S = minetest.get_translator(modname)
+local modpath = minetest.get_modpath(modname)
 
 local SCAN_2_MAP_CHUNKS = true -- slower but helps to find more suitable places
 
@@ -90,6 +92,27 @@ local limits = {
 	},
 }
 
+local function save_portal_pos(pos,target_pos)
+	local p1 = vector.offset(pos,-2,-1,-2)
+	local p2 = vector.offset(pos,2,15,2)
+	local nn = find_nodes_in_area(p1,p2,{"mcl_portals:portal"})
+	for _,p in pairs(nn) do
+		minetest.get_meta(p):set_string("target_portal",minetest.hash_node_position(target_pos))
+	end
+end
+
+local function get_portal_pos(pos)
+	local p1 = vector.offset(pos,-5,-1,-5)
+	local p2 = vector.offset(pos,5,5,5)
+	local nn = find_nodes_in_area(p1,p2,{"mcl_portals:portal"})
+	for _,p in pairs(nn) do
+		local m = minetest.get_meta(p):get_string("target_portal")
+		if m and m ~= "" and mcl_vars.get_node(p).name == "mcl_portals:portal" then
+			return minetest.get_position_from_hash(m)
+		end
+	end
+end
+
 -- This function registers exits from Nether portals.
 -- Incoming verification performed: two nodes must be portal nodes, and an obsidian below them.
 -- If the verification passes - position adds to the table and saves to mod storage on exit.
@@ -406,6 +429,10 @@ local function finalize_teleport(obj, exit)
 	end
 	local _, dim = mcl_worlds.y_to_layer(exit.y)
 
+	local saved_portal = find_exit(get_portal_pos(objpos),10,10,10)
+
+	if saved_portal then exit = saved_portal end
+
 
 	-- If player stands, player is at ca. something+0.5 which might cause precision problems, so we used ceil for objpos.y
 	objpos = {x = floor(objpos.x+0.5), y = ceil(objpos.y), z = floor(objpos.z+0.5)}
@@ -421,8 +448,11 @@ local function finalize_teleport(obj, exit)
 	teleport_cooloff(obj)
 
 	-- Teleport
+	save_portal_pos(objpos,exit)
 	obj:set_pos(exit)
-
+	minetest.after(1,function()
+		save_portal_pos(exit,objpos)
+	end)
 	if is_player then
 		mcl_worlds.dimension_change(obj, dim)
 		minetest.sound_play("mcl_portals_teleport", {pos=exit, gain=0.5, max_hear_distance = 16}, true)
@@ -876,3 +906,18 @@ minetest.override_item(OBSIDIAN, {
 		end
 	end,
 })
+
+mcl_structures.register_structure("nether_portal",{
+	nospawn = true,
+	filenames = {
+		modpath.."/schematics/mcl_portals_nether_portal.mts"
+	},
+	after_place = function(pos,def,pr,blockseed)
+	end
+})
+mcl_structures.register_structure("nether_portal_open",{
+	nospawn = true,
+	filenames = {
+		modpath.."/schematics/mcl_portals_nether_portal_open.mts"
+	},
+})

mods/ITEMS/xpanes/init.lua

@@ -69,16 +69,16 @@ local function update_pane(pos)
 end
 
 minetest.register_on_placenode(function(pos, node)
-	if minetest.get_item_group(node, "pane") then
-		update_pane(pos)
-	end
+	if minetest.get_item_group(node.name, "pane") <= 0 then return end
+	update_pane(pos)
 	for i = 0, 3 do
 		local dir = minetest.facedir_to_dir(i)
 		update_pane(vector.add(pos, dir))
 	end
 end)
 
-minetest.register_on_dignode(function(pos)
+minetest.register_on_dignode(function(pos,node)
+	if minetest.get_item_group(node.name, "pane") <= 0 then return end
 	for i = 0, 3 do
 		local dir = minetest.facedir_to_dir(i)
 		update_pane(vector.add(pos, dir))
@@ -86,6 +86,7 @@ minetest.register_on_dignode(function(pos)
 end)
 
 xpanes = {}
+xpanes.update_pane = update_pane
 function xpanes.register_pane(name, def)
 	for i = 1, 15 do
 		minetest.register_alias("xpanes:" .. name .. "_" .. i, "xpanes:" .. name .. "_flat")

mods/MAPGEN/mcl_biomes/init.lua

@@ -13,9 +13,6 @@ local mod_mcl_crimson = minetest.get_modpath("mcl_crimson")
 local mod_mcl_blackstone = minetest.get_modpath("mcl_blackstone")
 local mod_mcl_mangrove = minetest.get_modpath("mcl_mangrove")
 
--- Jungle bush schematic. In PC/Java Edition it's Jungle Wood + Oak Leaves
-local jungle_bush_schematic = mod_mcl_core.."/schematics/mcl_core_jungle_bush_oak_leaves.mts"
-
 local deco_id_chorus_plant
 
 --
@@ -1727,12 +1724,90 @@ local function register_dimension_biomes()
 		node_water = "air",
 		node_river_water = "air",
 		node_cave_liquid = "air",
-		-- FIXME: For some reason the End stops generating early if this constant is not added.
-		-- Figure out why.
 		y_min = mcl_vars.mg_end_min,
 		y_max = mcl_vars.mg_end_max + 80,
+		heat_point = 1000, --ridiculously high values so End Island always takes precedent
+		humidity_point = 1000,
+		vertical_blend = 16,
+		_mcl_biome_type = "medium",
+		_mcl_palette_index = 0,
+	})
+	minetest.register_biome({
+		name = "EndMidlands",
+		node_stone = "air",
+		node_filler = "air",
+		node_water = "air",
+		node_river_water = "air",
+		node_cave_liquid = "air",
+		y_min = mcl_vars.mg_end_min,
+		y_max = mcl_vars.mg_end_max + 80,
+		heat_point = 1000,
+		humidity_point = 1000,
+		vertical_blend = 16,
+		_mcl_biome_type = "medium",
+		_mcl_palette_index = 0,
+	})
+	minetest.register_biome({
+		name = "EndHighlands",
+		node_stone = "air",
+		node_filler = "air",
+		node_water = "air",
+		node_river_water = "air",
+		node_cave_liquid = "air",
+		y_min = mcl_vars.mg_end_min,
+		y_max = mcl_vars.mg_end_max + 80,
+		heat_point = 1000,
+		humidity_point = 1000,
+		vertical_blend = 16,
+		_mcl_biome_type = "medium",
+		_mcl_palette_index = 0,
+	})
+	minetest.register_biome({
+		name = "EndSmallIslands",
+		node_stone = "air",
+		node_filler = "air",
+		node_water = "air",
+		node_river_water = "air",
+		node_cave_liquid = "air",
+		y_min = mcl_vars.mg_end_min,
+		y_max = mcl_vars.mg_end_max + 80,
+		heat_point = 1000,
+		humidity_point = 1000,
+		vertical_blend = 16,
+		_mcl_biome_type = "medium",
+		_mcl_palette_index = 0,
+	})
+
+	minetest.register_biome({
+		name = "EndBorder",
+		node_stone = "air",
+		node_filler = "air",
+		node_water = "air",
+		node_river_water = "air",
+		node_cave_liquid = "air",
+		y_min = mcl_vars.mg_end_min,
+		y_max = mcl_vars.mg_end_max + 80,
+		heat_point = 500,
+		humidity_point = 500,
+		vertical_blend = 16,
+		max_pos = {x = 1250, y = mcl_vars.mg_end_min + 512, z = 1250},
+		min_pos = {x = -1250, y = mcl_vars.mg_end_min, z = -1250},
+		_mcl_biome_type = "medium",
+		_mcl_palette_index = 0,
+	})
+
+	minetest.register_biome({
+		name = "EndIsland",
+		node_stone = "air",
+		node_filler = "air",
+		node_water = "air",
+		node_river_water = "air",
+		node_cave_liquid = "air",
+		max_pos = {x = 650, y = mcl_vars.mg_end_min + 512, z = 650},
+		min_pos = {x = -650, y = mcl_vars.mg_end_min, z = -650},
 		heat_point = 50,
 		humidity_point = 50,
+		vertical_blend = 16,
 		_mcl_biome_type = "medium",
 		_mcl_palette_index = 0,
 	})
@@ -2382,10 +2457,47 @@ local function register_dimension_ores()
 		end_wherein = {"air"}
 	end
 
+	local mult = 1.0
+
 	minetest.register_ore({
 		ore_type        = "stratum",
 		ore             = "mcl_end:end_stone",
 		wherein         = end_wherein,
+		biomes          = {"EndSmallIslands","Endborder"},
+		y_min           = mcl_vars.mg_end_min+64,
+		y_max           = mcl_vars.mg_end_min+80,
+		clust_num_ores  = 3375,
+		clust_size      = 15,
+
+		noise_params = {
+			offset  = mcl_vars.mg_end_min+70,
+			scale   = -1,
+			spread  = {x=84, y=84, z=84},
+			seed    = 145,
+			octaves = 3,
+			persist = 0.6,
+			lacunarity = 2,
+			--flags = "defaults",
+		},
+
+		np_stratum_thickness = {
+			offset  = 0,
+			scale   = 15,
+			spread  = {x=84, y=84, z=84},
+			seed    = 145,
+			octaves = 3,
+			persist = 0.6,
+			lacunarity = 2,
+			--flags = "defaults",
+		},
+		clust_scarcity = 1,
+	})
+
+	minetest.register_ore({
+		ore_type        = "stratum",
+		ore             = "mcl_end:end_stone",
+		wherein         = end_wherein,
+		biomes          = {"End","EndMidlands","EndHighlands","EndBarrens"},
 		y_min           = mcl_vars.mg_end_min+64,
 		y_max           = mcl_vars.mg_end_min+80,
 
@@ -2413,6 +2525,7 @@ local function register_dimension_ores()
 		ore_type        = "stratum",
 		ore             = "mcl_end:end_stone",
 		wherein         = end_wherein,
+		biomes          = {"End","EndMidlands","EndHighlands","EndBarrens"},
 		y_min           = mcl_vars.mg_end_min+64,
 		y_max           = mcl_vars.mg_end_min+80,
 
@@ -2439,6 +2552,7 @@ local function register_dimension_ores()
 		ore_type        = "stratum",
 		ore             = "mcl_end:end_stone",
 		wherein         = end_wherein,
+		biomes          = {"End","EndMidlands","EndHighlands","EndBarrens"},
 		y_min           = mcl_vars.mg_end_min+64,
 		y_max           = mcl_vars.mg_end_min+80,
 
@@ -3149,13 +3263,13 @@ local function register_decorations()
 
 	-- Jungle tree
 
-	-- Huge jungle tree (2 variants)
-	for i=1, 2 do
+	-- Huge jungle tree (4 variants)
+	for i=1, 4 do
 		minetest.register_decoration({
 			deco_type = "schematic",
 			place_on = {"group:grass_block_no_snow", "mcl_core:dirt"},
 			sidelen = 80,
-			fill_ratio = 0.00125,
+			fill_ratio = 0.0008,
 			biomes = {"Jungle"},
 			y_min = 4,
 			y_max = mcl_vars.mg_overworld_max,
@@ -3167,7 +3281,7 @@ local function register_decorations()
 			deco_type = "schematic",
 			place_on = {"group:grass_block_no_snow", "mcl_core:dirt"},
 			sidelen = 80,
-			fill_ratio = 0.004,
+			fill_ratio = 0.003,
 			biomes = {"JungleM"},
 			y_min = 4,
 			y_max = mcl_vars.mg_overworld_max,
@@ -3182,7 +3296,55 @@ local function register_decorations()
 		deco_type = "schematic",
 		place_on = {"group:grass_block_no_snow", "mcl_core:dirt"},
 		sidelen = 80,
-		fill_ratio = 0.045,
+		fill_ratio = 0.025,
+		biomes = {"Jungle"},
+		y_min = 1,
+		y_max = mcl_vars.mg_overworld_max,
+		schematic = mod_mcl_core.."/schematics/mcl_core_jungle_tree.mts",
+		flags = "place_center_x, place_center_z",
+		rotation = "random",
+	})
+	minetest.register_decoration({
+		deco_type = "schematic",
+		place_on = {"group:grass_block_no_snow", "mcl_core:dirt"},
+		sidelen = 80,
+		fill_ratio = 0.015,
+		biomes = {"Jungle"},
+		y_min = 1,
+		y_max = mcl_vars.mg_overworld_max,
+		schematic = mod_mcl_core.."/schematics/mcl_core_jungle_tree_2.mts",
+		flags = "place_center_x, place_center_z",
+		rotation = "random",
+	})
+	minetest.register_decoration({
+		deco_type = "schematic",
+		place_on = {"group:grass_block_no_snow", "mcl_core:dirt"},
+		sidelen = 80,
+		fill_ratio = 0.005,
+		biomes = {"Jungle"},
+		y_min = 1,
+		y_max = mcl_vars.mg_overworld_max,
+		schematic = mod_mcl_core.."/schematics/mcl_core_jungle_tree_3.mts",
+		flags = "place_center_x, place_center_z",
+		rotation = "random",
+	})
+	minetest.register_decoration({
+		deco_type = "schematic",
+		place_on = {"group:grass_block_no_snow", "mcl_core:dirt"},
+		sidelen = 80,
+		fill_ratio = 0.005,
+		biomes = {"Jungle"},
+		y_min = 1,
+		y_max = mcl_vars.mg_overworld_max,
+		schematic = mod_mcl_core.."/schematics/mcl_core_jungle_tree_4.mts",
+		flags = "place_center_x, place_center_z",
+		rotation = "random",
+	})
+	minetest.register_decoration({
+		deco_type = "schematic",
+		place_on = {"group:grass_block_no_snow", "mcl_core:dirt"},
+		sidelen = 80,
+		fill_ratio = 0.025,
 		biomes = {"Jungle"},
 		y_min = 1,
 		y_max = mcl_vars.mg_overworld_max,
@@ -3211,11 +3373,10 @@ local function register_decorations()
 		biomes = {"JungleM"},
 		y_min = 1,
 		y_max = mcl_vars.mg_overworld_max,
-		schematic = mod_mcl_core.."/schematics/mcl_core_jungle_tree.mts",
+		schematic = mod_mcl_core.."/schematics/mcl_core_jungle_tree_2.mts",
 		flags = "place_center_x, place_center_z",
 		rotation = "random",
 	})
-
 	-- Spruce
 	local function quick_spruce(seed, offset, sprucename, biomes, y)
 		if not y then
@@ -3538,6 +3699,18 @@ local function register_decorations()
 		rotation = "0",
 	})
 
+	--Snow on snowy dirt
+	minetest.register_decoration({
+		deco_type = "simple",
+		place_on = {"mcl_core:dirt_with_grass_snow"},
+		sidelen = 80,
+		fill_ratio = 10,
+		flags = "all_floors",
+		y_min = mcl_vars.mg_overworld_min,
+		y_max = mcl_vars.mg_overworld_max,
+		decoration = "mcl_core:snow",
+	})
+
 	--Mushrooms in caves
 	minetest.register_decoration({
 		deco_type = "simple",
@@ -3800,7 +3973,7 @@ local function register_decorations()
 		sidelen = 80,
 		noise_params = {
 			offset = 0.0196,
-			scale = 0.025,
+			scale = 0.015,
 			spread = {x = 250, y = 250, z = 250},
 			seed = 2930,
 			octaves = 4,
@@ -3809,7 +3982,25 @@ local function register_decorations()
 		biomes = {"Jungle"},
 		y_min = 3,
 		y_max = mcl_vars.mg_overworld_max,
-		schematic = jungle_bush_schematic,
+		schematic = mod_mcl_core.."/schematics/mcl_core_jungle_bush_oak_leaves.mts",
+		flags = "place_center_x, place_center_z",
+	})
+	minetest.register_decoration({
+		deco_type = "schematic",
+		place_on = {"group:grass_block_no_snow", "mcl_core:dirt"},
+		sidelen = 80,
+		noise_params = {
+			offset = 0.0196,
+			scale = 0.005,
+			spread = {x = 250, y = 250, z = 250},
+			seed = 2930,
+			octaves = 4,
+			persist = 0.6,
+		},
+		biomes = {"Jungle"},
+		y_min = 3,
+		y_max = mcl_vars.mg_overworld_max,
+		schematic = mod_mcl_core.."/schematics/mcl_core_jungle_bush_oak_leaves_2.mts",
 		flags = "place_center_x, place_center_z",
 	})
 	minetest.register_decoration({
@@ -3827,7 +4018,7 @@ local function register_decorations()
 		biomes = {"JungleM"},
 		y_min = 1,
 		y_max = mcl_vars.mg_overworld_max,
-		schematic = jungle_bush_schematic,
+		schematic = mod_mcl_core.."/schematics/mcl_core_jungle_bush_oak_leaves.mts",
 		flags = "place_center_x, place_center_z",
 	})
 	minetest.register_decoration({
@@ -3845,7 +4036,7 @@ local function register_decorations()
 		biomes = {"JungleEdge", "JungleEdgeM"},
 		y_min = 3,
 		y_max = mcl_vars.mg_overworld_max,
-		schematic = jungle_bush_schematic,
+		schematic = mod_mcl_core.."/schematics/mcl_core_jungle_bush_oak_leaves.mts",
 		flags = "place_center_x, place_center_z",
 	})
 
@@ -4829,9 +5020,9 @@ local function register_dimension_decorations()
 
 	-- Chorus plant
 	minetest.register_decoration({
-		name = "mcl_biomes:chorus_plant",
+		name = "mcl_biomes:chorus",
 		deco_type = "simple",
-		place_on = {"mcl_end:end_stone", "air"},
+		place_on = {"mcl_end:end_stone"},
 		flags = "all_floors",
 		sidelen = 16,
 		noise_params = {
@@ -4844,9 +5035,31 @@ local function register_dimension_decorations()
 		},
 		y_min = mcl_vars.mg_end_min,
 		y_max = mcl_vars.mg_end_max,
+		decoration = "mcl_end:chorus_plant",
+		height = 1,
+		height_max = 8,
+		biomes = { "End", "EndMidlands", "EndHighlands", "EndBarrens", "EndSmallIslands" },
+	})
+	minetest.register_decoration({
+		name = "mcl_biomes:chorus_plant",
+		deco_type = "simple",
+		place_on = {"mcl_end:chorus_plant"},
+		flags = "all_floors",
+		sidelen = 16,
+		fill_ratio = 10,
+		--[[noise_params = {
+			offset = -0.012,
+			scale = 0.024,
+			spread = {x = 100, y = 100, z = 100},
+			seed = 257,
+			octaves = 3,
+			persist = 0.6
+		},--]]
+		y_min = mcl_vars.mg_end_min,
+		y_max = mcl_vars.mg_end_max,
 		decoration = "mcl_end:chorus_flower",
 		height = 1,
-		biomes = { "End" },
+		biomes = { "End", "EndMidlands", "EndHighlands", "EndBarrens", "EndSmallIslands" },
 	})
 
 	deco_id_chorus_plant = minetest.get_decoration_id("mcl_biomes:chorus_plant")
@@ -4933,7 +5146,7 @@ if mg_name ~= "singlenode" then
 			if minp.y > -26900 then return end
 			for _, pos in ipairs(gennotify["decoration#"..deco_id_chorus_plant] or {}) do
 				local x, y, z = pos.x, pos.y, pos.z
-				if x < -2 or x > 2 or z < -2 or z > 2 then
+				if x < -10 or x > 10 or z < -10 or z > 10 then
 					local realpos = { x = x, y = y + 1, z = z }
 					local node = minetest.get_node(realpos)
 					if node and node.name == "mcl_end:chorus_flower" then

mods/MAPGEN/mcl_end_island/init.lua

@@ -1,34 +1,40 @@
+local width = 200
+
 local noisemap = PerlinNoiseMap({
 	offset = 0.5,
 	scale = 0.5,
-	spread = {x = 84, y = 84, z = 84},
+	spread = {x = width + 10, y = width + 10, z = width + 10},
 	seed = minetest.get_mapgen_setting("seed") + 99999,
 	octaves = 4,
 	persist = 0.85,
-}, {x = 151, y = 30, z = 151}):get_3d_map({x = 0, y = 0, z = 0})
+}, {x = (width*2)+1, y = 30, z = (width * 2) + 1}):get_3d_map({x = 0, y = 0, z = 0})
 
 local c_end_stone = minetest.get_content_id("mcl_end:end_stone")
 local y_offset = -2
 
-minetest.register_on_generated(function(minp, maxp)
-	if maxp.y < (-27025 + y_offset) or minp.y > (-27000 + y_offset + 4) or maxp.x < -75 or minp.x > 75  or maxp.z < -75 or minp.z > 75 then
+mcl_mapgen_core.register_generator("end_island", function(vm, data, data2, emin, emax, area, minp, maxp, blockseed)
+	if maxp.y < (-27025 + y_offset) or minp.y > (-27000 + y_offset + 4) or maxp.x < -width or minp.x > width  or maxp.z < -width or minp.z > width then
 		return
 	end
 
-	local vm, emin, emax = minetest.get_mapgen_object("voxelmanip")
-	local data = vm:get_data()
-	local area = VoxelArea:new({MinEdge = emin, MaxEdge = emax})
-
-	for idx in area:iter(math.max(minp.x, -75), math.max(minp.y, -27025 + y_offset + 4), math.max(minp.z, -75), math.min(maxp.x, 75), math.min(maxp.y, -27000 + y_offset), math.min(maxp.z, 75)) do
+	for idx in area:iter(math.max(minp.x, -width), math.max(minp.y, -27025 + y_offset + 4), math.max(minp.z, -width), math.min(maxp.x, width), math.min(maxp.y, -27000 + y_offset), math.min(maxp.z, width)) do
 		local pos = area:position(idx)
 		local y = 27025 + pos.y - y_offset
-		if noisemap[pos.x + 75 + 1][y + 1][pos.z + 75 + 1] > (math.abs(1 - y / 25) ^ 2 + math.abs(pos.x / 75) ^ 2 + math.abs(pos.z / 75) ^ 2) then
+		if noisemap[pos.x + width + 1][y + 1][pos.z + width + 1] > (math.abs(1 - y / 25) ^ 2 + math.abs(pos.x / width) ^ 2 + math.abs(pos.z / width) ^ 2) then
 			data[idx] = c_end_stone
 		end
 	end
-
-	vm:set_data(data)
-	vm:calc_lighting()
-	vm:update_liquids()
-	vm:write_to_map()
-end)
+	return true,false,false
+end, function(minp,maxp,blockseed)
+	if maxp.y < (-27025 + y_offset) or minp.y > (-27000 + y_offset + 4) or maxp.x < -width or minp.x > width  or maxp.z < -width or minp.z > width then
+		return
+	end
+	local nn = minetest.find_nodes_in_area_under_air(minp,maxp,{"mcl_end:end_stone"})
+	local pr = PseudoRandom(blockseed)
+	table.shuffle(nn)
+	if nn and #nn > 0 then
+		for i=1,pr:next(1,math.min(5,#nn)) do
+			minetest.add_entity(vector.offset(nn[i],0,1,0),"mobs_mc:enderman")
+		end
+	end
+end, 15, true)

mods/MAPGEN/mcl_end_island/mod.conf

@@ -1,4 +1,4 @@
 name = mcl_end_island
 author = Fleckenstein
-depends = mcl_mapgen_core, mcl_end
+depends = mcl_mapgen_core, mcl_end, mcl_mobs
 description = Generate the end main island for MCL2

mods/MAPGEN/mcl_mapgen_core/api.lua

@@ -0,0 +1,115 @@
+local registered_generators = {}
+
+local lvm, nodes, param2 = 0, 0, 0
+local lvm_buffer = {}
+
+local logging = minetest.settings:get_bool("mcl_logging_mapgen",false)
+
+local function roundN(n, d)
+	if type(n) ~= "number" then return n end
+    local m = 10^d
+    return math.floor(n * m + 0.5) / m
+end
+
+minetest.register_on_generated(function(minp, maxp, blockseed)
+	local t1 = os.clock()
+	local p1, p2 = {x=minp.x, y=minp.y, z=minp.z}, {x=maxp.x, y=maxp.y, z=maxp.z}
+	if lvm > 0 then
+		local lvm_used, shadow, deco_used = false, false, false
+		local lb2 = {} -- param2
+		local vm, emin, emax = minetest.get_mapgen_object("voxelmanip")
+		local e1, e2 = {x=emin.x, y=emin.y, z=emin.z}, {x=emax.x, y=emax.y, z=emax.z}
+		local data2
+		local data = vm:get_data(lvm_buffer)
+		if param2 > 0 then
+			data2 = vm:get_param2_data(lb2)
+		end
+		local area = VoxelArea:new({MinEdge=e1, MaxEdge=e2})
+
+		for _, rec in ipairs(registered_generators) do
+			if rec.vf then
+				local lvm_used0, shadow0, deco = rec.vf(vm, data, data2, e1, e2, area, p1, p2, blockseed)
+				if lvm_used0 then
+					lvm_used = true
+				end
+				if shadow0 then
+					shadow = true
+				end
+				if deco then
+					deco_used = true
+				end
+			end
+		end
+
+		if lvm_used then
+			-- Write stuff
+			vm:set_data(data)
+			if param2 > 0 then
+				vm:set_param2_data(data2)
+			end
+			if deco_used then
+				minetest.generate_decorations(vm)
+			end
+			vm:calc_lighting(p1, p2, shadow)
+			vm:write_to_map()
+			vm:update_liquids()
+		end
+	end
+
+	if nodes > 0 then
+		for _, rec in ipairs(registered_generators) do
+			if rec.nf then
+				rec.nf(p1, p2, blockseed)
+			end
+		end
+	end
+
+	mcl_vars.add_chunk(minp)
+	if logging then
+		minetest.log("action", "[mcl_mapgen_core] Generating chunk " .. minetest.pos_to_string(minp) .. " ... " .. minetest.pos_to_string(maxp).."..."..tostring(roundN(((os.clock() - t1)*1000),2)).."ms")
+	end
+end)
+
+function minetest.register_on_generated(node_function)
+	mcl_mapgen_core.register_generator("mod_"..minetest.get_current_modname().."_"..tostring(#registered_generators+1), nil, node_function)
+end
+
+function mcl_mapgen_core.register_generator(id, lvm_function, node_function, priority, needs_param2)
+	if not id then return end
+
+	local priority = priority or 5000
+
+	if lvm_function then lvm = lvm + 1 end
+	if node_function then nodes = nodes + 1 end
+	if needs_param2 then param2 = param2 + 1 end
+
+	local new_record = {
+		id = id,
+		i = priority,
+		vf = lvm_function,
+		nf = node_function,
+		needs_param2 = needs_param2,
+	}
+
+	table.insert(registered_generators, new_record)
+	table.sort(registered_generators, function(a, b)
+		return (a.i < b.i) or ((a.i == b.i) and a.vf and (b.vf == nil))
+	end)
+end
+
+function mcl_mapgen_core.unregister_generator(id)
+	local index
+	for i, gen in ipairs(registered_generators) do
+		if gen.id == id then
+			index = i
+			break
+		end
+	end
+	if not index then return end
+	local rec = registered_generators[index]
+	table.remove(registered_generators, index)
+	if rec.vf then lvm = lvm - 1 end
+	if rec.nf then nodes = nodes - 1 end
+	if rec.needs_param2 then param2 = param2 - 1 end
+	--if rec.needs_level0 then level0 = level0 - 1 end
+end

mods/MAPGEN/mcl_mapgen_core/mod.conf

@@ -1,5 +1,5 @@
 name = mcl_mapgen_core
 author = Wuzzy
 description = The core of the MCL2 mapgen
-depends = mcl_init, mcl_core, biomeinfo, mcl_worlds, mcl_cocoas, mcl_sponges, mcl_ocean, mcl_stairs, mcl_monster_eggs, mcl_structures
-optional_depends = mclx_core
+depends = mcl_init, mcl_core, mcl_deepslate, biomeinfo, mcl_worlds, mcl_cocoas, mcl_sponges, mcl_ocean, mcl_stairs, mcl_monster_eggs, mcl_structures
+optional_depends = mclx_core, mcl_copper

mods/MAPGEN/mcl_mapgen_core/ores.lua

@@ -0,0 +1,816 @@
+
+local deepslate_max = mcl_worlds.layer_to_y(16)
+local deepslate_min = mcl_vars.mg_overworld_min
+
+local copper_mod = minetest.get_modpath("mcl_copper")
+
+local mg_name = minetest.get_mapgen_setting("mg_name")
+local superflat = mg_name == "flat" and minetest.get_mapgen_setting("mcl_superflat_classic") == "true"
+
+local mountains = {
+	"ExtremeHills", "ExtremeHills_beach", "ExtremeHills_ocean", "ExtremeHills_deep_ocean", "ExtremeHills_underground",
+	"ExtremeHills+", "ExtremeHills+_ocean", "ExtremeHills+_deep_ocean", "ExtremeHills+_underground",
+	"ExtremeHillsM", "ExtremeHillsM_ocean", "ExtremeHillsM_deep_ocean", "ExtremeHillsM_underground",
+}
+
+--Clay
+minetest.register_ore({
+	ore_type       = "blob",
+	ore            = "mcl_core:clay",
+	wherein        = {"mcl_core:sand","mcl_core:stone","mcl_core:gravel"},
+	clust_scarcity = 15*15*15,
+	clust_num_ores = 33,
+	clust_size     = 5,
+	y_min          = -5,
+	y_max          = 0,
+	noise_params = {
+		offset  = 0,
+		scale   = 1,
+		spread  = {x=250, y=250, z=250},
+		seed    = 34843,
+		octaves = 3,
+		persist = 0.6,
+		lacunarity = 2,
+		flags = "defaults",
+	}
+})
+
+-- Diorite, andesite and granite
+local specialstones = { "mcl_core:diorite", "mcl_core:andesite", "mcl_core:granite" }
+for s=1, #specialstones do
+	local node = specialstones[s]
+	minetest.register_ore({
+		ore_type       = "blob",
+		ore            = node,
+		wherein        = {"mcl_core:stone"},
+		clust_scarcity = 15*15*15,
+		clust_num_ores = 33,
+		clust_size     = 5,
+		y_min          = mcl_vars.mg_overworld_min,
+		y_max          = mcl_vars.mg_overworld_max,
+		noise_params = {
+			offset  = 0,
+			scale   = 1,
+			spread  = {x=250, y=250, z=250},
+			seed    = 12345,
+			octaves = 3,
+			persist = 0.6,
+			lacunarity = 2,
+			flags = "defaults",
+		}
+	})
+	minetest.register_ore({
+		ore_type       = "blob",
+		ore            = node,
+		wherein        = {"mcl_core:stone"},
+		clust_scarcity = 10*10*10,
+		clust_num_ores = 58,
+		clust_size     = 7,
+		y_min          = mcl_vars.mg_overworld_min,
+		y_max          = mcl_vars.mg_overworld_max,
+		noise_params = {
+			offset  = 0,
+			scale   = 1,
+			spread  = {x=250, y=250, z=250},
+			seed    = 12345,
+			octaves = 3,
+			persist = 0.6,
+			lacunarity = 2,
+			flags = "defaults",
+		}
+	})
+end
+
+local stonelike = {"mcl_core:stone", "mcl_core:diorite", "mcl_core:andesite", "mcl_core:granite"}
+
+-- Dirt
+minetest.register_ore({
+	ore_type       = "blob",
+	ore            = "mcl_core:dirt",
+	wherein        = stonelike,
+	clust_scarcity = 15*15*15,
+	clust_num_ores = 33,
+	clust_size     = 4,
+	y_min          = mcl_vars.mg_overworld_min,
+	y_max          = mcl_vars.mg_overworld_max,
+	noise_params = {
+		offset  = 0,
+		scale   = 1,
+		spread  = {x=250, y=250, z=250},
+		seed    = 12345,
+		octaves = 3,
+		persist = 0.6,
+		lacunarity = 2,
+		flags = "defaults",
+	}
+})
+
+-- Gravel
+minetest.register_ore({
+	ore_type       = "blob",
+	ore            = "mcl_core:gravel",
+	wherein        = stonelike,
+	clust_scarcity = 14*14*14,
+	clust_num_ores = 33,
+	clust_size     = 5,
+	y_min          = mcl_vars.mg_overworld_min,
+	y_max          = mcl_worlds.layer_to_y(111),
+	noise_params = {
+		offset  = 0,
+		scale   = 1,
+		spread  = {x=250, y=250, z=250},
+		seed    = 12345,
+		octaves = 3,
+		persist = 0.6,
+		lacunarity = 2,
+		flags = "defaults",
+	}
+})
+
+
+minetest.register_ore({
+    ore_type       = "blob",
+    ore            = "mcl_deepslate:deepslate",
+    wherein        = { "mcl_core:stone" },
+    clust_scarcity = 200,
+    clust_num_ores = 100,
+    clust_size     = 10,
+    y_min          = deepslate_min,
+    y_max          = deepslate_max,
+    noise_params = {
+        offset  = 0,
+        scale   = 1,
+        spread  = { x = 250, y = 250, z = 250 },
+        seed    = 12345,
+        octaves = 3,
+        persist = 0.6,
+        lacunarity = 2,
+        flags = "defaults",
+    }
+})
+
+minetest.register_ore({
+	ore_type       = "blob",
+	ore            = "mcl_deepslate:tuff",
+	wherein        = { "mcl_core:stone", "mcl_core:diorite", "mcl_core:andesite", "mcl_core:granite", "mcl_deepslate:deepslate" },
+	clust_scarcity = 10*10*10,
+	clust_num_ores = 58,
+	clust_size     = 7,
+	y_min          = deepslate_min,
+    y_max          = deepslate_max,
+	noise_params = {
+		offset  = 0,
+		scale   = 1,
+		spread  = {x=250, y=250, z=250},
+		seed    = 12345,
+		octaves = 3,
+		persist = 0.6,
+		lacunarity = 2,
+		flags = "defaults",
+	}
+})
+
+-- DEEPSLATE
+if minetest.settings:get_bool("mcl_generate_deepslate", true) then
+
+	minetest.register_ore({
+		ore_type       = "scatter",
+		ore            = "mcl_deepslate:infested_deepslate",
+		wherein        = "mcl_deepslate:deepslate",
+		clust_scarcity = 26 * 26 * 26,
+		clust_num_ores = 3,
+		clust_size     = 2,
+		y_min          = deepslate_min,
+		y_max          = deepslate_max,
+		biomes         = mountains,
+	})
+
+	minetest.register_ore({
+		ore_type       = "scatter",
+		ore            = "mcl_core:water_source",
+		wherein        = "mcl_deepslate:deepslate",
+		clust_scarcity = 9000,
+		clust_num_ores = 1,
+		clust_size     = 1,
+		y_min          = mcl_worlds.layer_to_y(5),
+		y_max          = deepslate_max,
+	})
+
+	minetest.register_ore({
+		ore_type       = "scatter",
+		ore            = "mcl_core:lava_source",
+		wherein        = "mcl_deepslate:deepslate",
+		clust_scarcity = 2000,
+		clust_num_ores = 1,
+		clust_size     = 1,
+		y_min          = mcl_worlds.layer_to_y(1),
+		y_max          = mcl_worlds.layer_to_y(10),
+	})
+
+	minetest.register_ore({
+		ore_type       = "scatter",
+		ore            = "mcl_core:lava_source",
+		wherein        = "mcl_deepslate:deepslate",
+		clust_scarcity = 9000,
+		clust_num_ores = 1,
+		clust_size     = 1,
+		y_min          = mcl_worlds.layer_to_y(11),
+		y_max          = deepslate_max,
+	})
+
+end
+
+if minetest.settings:get_bool("mcl_generate_ores", true) then
+	--
+	-- Coal
+	--
+
+	-- Common spawn
+	minetest.register_ore({
+		ore_type       = "scatter",
+		ore            = "mcl_core:stone_with_coal",
+		wherein        = stonelike,
+		clust_scarcity = 525*3,
+		clust_num_ores = 5,
+		clust_size     = 3,
+		y_min          = mcl_vars.mg_overworld_min,
+		y_max          = mcl_worlds.layer_to_y(50),
+	})
+	minetest.register_ore({
+		ore_type       = "scatter",
+		ore            = "mcl_core:stone_with_coal",
+		wherein        = stonelike,
+		clust_scarcity = 510*3,
+		clust_num_ores = 8,
+		clust_size     = 3,
+		y_min          = mcl_vars.mg_overworld_min,
+		y_max          = mcl_worlds.layer_to_y(50),
+	})
+	minetest.register_ore({
+		ore_type       = "scatter",
+		ore            = "mcl_core:stone_with_coal",
+		wherein        = stonelike,
+		clust_scarcity = 500*3,
+		clust_num_ores = 12,
+		clust_size     = 3,
+		y_min          = mcl_vars.mg_overworld_min,
+		y_max          = mcl_worlds.layer_to_y(50),
+	})
+
+	-- Medium-rare spawn
+	minetest.register_ore({
+		ore_type       = "scatter",
+		ore            = "mcl_core:stone_with_coal",
+		wherein        = stonelike,
+		clust_scarcity = 550*3,
+		clust_num_ores = 4,
+		clust_size     = 2,
+		y_min          = mcl_worlds.layer_to_y(51),
+		y_max          = mcl_worlds.layer_to_y(80),
+	})
+	minetest.register_ore({
+		ore_type       = "scatter",
+		ore            = "mcl_core:stone_with_coal",
+		wherein        = stonelike,
+		clust_scarcity = 525*3,
+		clust_num_ores = 6,
+		clust_size     = 3,
+		y_min          = mcl_worlds.layer_to_y(51),
+		y_max          = mcl_worlds.layer_to_y(80),
+	})
+	minetest.register_ore({
+		ore_type       = "scatter",
+		ore            = "mcl_core:stone_with_coal",
+		wherein        = stonelike,
+		clust_scarcity = 500*3,
+		clust_num_ores = 8,
+		clust_size     = 3,
+		y_min          = mcl_worlds.layer_to_y(51),
+		y_max          = mcl_worlds.layer_to_y(80),
+	})
+
+	-- Rare spawn
+	minetest.register_ore({
+		ore_type       = "scatter",
+		ore            = "mcl_core:stone_with_coal",
+		wherein         = stonelike,
+		clust_scarcity = 600*3,
+		clust_num_ores = 3,
+		clust_size     = 2,
+		y_min          = mcl_worlds.layer_to_y(81),
+		y_max          = mcl_worlds.layer_to_y(128),
+	})
+	minetest.register_ore({
+		ore_type       = "scatter",
+		ore            = "mcl_core:stone_with_coal",
+		wherein         = stonelike,
+		clust_scarcity = 550*3,
+		clust_num_ores = 4,
+		clust_size     = 3,
+		y_min          = mcl_worlds.layer_to_y(81),
+		y_max          = mcl_worlds.layer_to_y(128),
+	})
+	minetest.register_ore({
+		ore_type       = "scatter",
+		ore            = "mcl_core:stone_with_coal",
+		wherein         = stonelike,
+		clust_scarcity = 500*3,
+		clust_num_ores = 5,
+		clust_size     = 3,
+		y_min          = mcl_worlds.layer_to_y(81),
+		y_max          = mcl_worlds.layer_to_y(128),
+	})
+
+	--
+	-- Iron
+	--
+	minetest.register_ore({
+		ore_type       = "scatter",
+		ore            = "mcl_core:stone_with_iron",
+		wherein         = stonelike,
+		clust_scarcity = 830,
+		clust_num_ores = 5,
+		clust_size     = 3,
+		y_min          = mcl_vars.mg_overworld_min,
+		y_max          = mcl_worlds.layer_to_y(39),
+	})
+	minetest.register_ore({
+		ore_type       = "scatter",
+		ore            = "mcl_core:stone_with_iron",
+		wherein         = stonelike,
+		clust_scarcity = 1660,
+		clust_num_ores = 4,
+		clust_size     = 2,
+		y_min          = mcl_worlds.layer_to_y(40),
+		y_max          = mcl_worlds.layer_to_y(63),
+	})
+
+	--
+	-- Gold
+	--
+
+	-- Common spawn
+	minetest.register_ore({
+		ore_type       = "scatter",
+		ore            = "mcl_core:stone_with_gold",
+		wherein         = stonelike,
+		clust_scarcity = 4775,
+		clust_num_ores = 5,
+		clust_size     = 3,
+		y_min          = mcl_vars.mg_overworld_min,
+		y_max          = mcl_worlds.layer_to_y(30),
+	})
+	minetest.register_ore({
+		ore_type       = "scatter",
+		ore            = "mcl_core:stone_with_gold",
+		wherein         = stonelike,
+		clust_scarcity = 6560,
+		clust_num_ores = 7,
+		clust_size     = 3,
+		y_min          = mcl_vars.mg_overworld_min,
+		y_max          = mcl_worlds.layer_to_y(30),
+	})
+
+	-- Rare spawn
+	minetest.register_ore({
+		ore_type       = "scatter",
+		ore            = "mcl_core:stone_with_gold",
+		wherein         = stonelike,
+		clust_scarcity = 13000,
+		clust_num_ores = 4,
+		clust_size     = 2,
+		y_min          = mcl_worlds.layer_to_y(31),
+		y_max          = mcl_worlds.layer_to_y(33),
+	})
+
+	--
+	-- Diamond
+	--
+
+	-- Common spawn
+	minetest.register_ore({
+		ore_type       = "scatter",
+		ore            = "mcl_core:stone_with_diamond",
+		wherein         = stonelike,
+		clust_scarcity = 10000,
+		clust_num_ores = 4,
+		clust_size     = 3,
+		y_min          = mcl_vars.mg_overworld_min,
+		y_max          = mcl_worlds.layer_to_y(12),
+	})
+	minetest.register_ore({
+		ore_type       = "scatter",
+		ore            = "mcl_core:stone_with_diamond",
+		wherein         = stonelike,
+		clust_scarcity = 5000,
+		clust_num_ores = 2,
+		clust_size     = 2,
+		y_min          = mcl_vars.mg_overworld_min,
+		y_max          = mcl_worlds.layer_to_y(12),
+	})
+	minetest.register_ore({
+		ore_type       = "scatter",
+		ore            = "mcl_core:stone_with_diamond",
+		wherein         = stonelike,
+		clust_scarcity = 10000,
+		clust_num_ores = 8,
+		clust_size     = 3,
+		y_min          = mcl_vars.mg_overworld_min,
+		y_max          = mcl_worlds.layer_to_y(12),
+	})
+
+	-- Rare spawn
+	minetest.register_ore({
+		ore_type       = "scatter",
+		ore            = "mcl_core:stone_with_diamond",
+		wherein         = stonelike,
+		clust_scarcity = 20000,
+		clust_num_ores = 1,
+		clust_size     = 1,
+		y_min          = mcl_worlds.layer_to_y(13),
+		y_max          = mcl_worlds.layer_to_y(15),
+	})
+	minetest.register_ore({
+		ore_type       = "scatter",
+		ore            = "mcl_core:stone_with_diamond",
+		wherein         = stonelike,
+		clust_scarcity = 20000,
+		clust_num_ores = 2,
+		clust_size     = 2,
+		y_min          = mcl_worlds.layer_to_y(13),
+		y_max          = mcl_worlds.layer_to_y(15),
+	})
+
+		--
+	-- Ancient debris
+	--
+	local ancient_debris_wherein = {"mcl_nether:netherrack","mcl_blackstone:blackstone","mcl_blackstone:basalt"}
+	-- Common spawn
+	minetest.register_ore({
+		ore_type       = "scatter",
+		ore            = "mcl_nether:ancient_debris",
+		wherein         = ancient_debris_wherein,
+		clust_scarcity = 25000, -- 0.004% chance
+		clust_num_ores = 3,
+		clust_size     = 3,
+		y_min = mcl_vars.mg_nether_min + 8,
+		y_max = mcl_vars.mg_nether_min + 22,
+	})
+
+		-- Rare spawn (below)
+	minetest.register_ore({
+		ore_type       = "scatter",
+		ore            = "mcl_nether:ancient_debris",
+		wherein         = ancient_debris_wherein,
+		clust_scarcity = 32000,
+		clust_num_ores = 2,
+		clust_size     = 3,
+		y_min = mcl_vars.mg_nether_min,
+		y_max = mcl_vars.mg_nether_min + 8,
+	})
+
+	-- Rare spawn (above)
+	minetest.register_ore({
+		ore_type       = "scatter",
+		ore            = "mcl_nether:ancient_debris",
+		wherein         = ancient_debris_wherein,
+		clust_scarcity = 32000,
+		clust_num_ores = 2,
+		clust_size     = 3,
+		y_min = mcl_vars.mg_nether_min + 22,
+		y_max = mcl_vars.mg_nether_min + 119,
+	})
+
+	--
+	-- Redstone
+	--
+
+	-- Common spawn
+	minetest.register_ore({
+		ore_type       = "scatter",
+		ore            = "mcl_core:stone_with_redstone",
+		wherein         = stonelike,
+		clust_scarcity = 500,
+		clust_num_ores = 4,
+		clust_size     = 3,
+		y_min          = mcl_vars.mg_overworld_min,
+		y_max          = mcl_worlds.layer_to_y(13),
+	})
+	minetest.register_ore({
+		ore_type       = "scatter",
+		ore            = "mcl_core:stone_with_redstone",
+		wherein         = stonelike,
+		clust_scarcity = 800,
+		clust_num_ores = 7,
+		clust_size     = 4,
+		y_min          = mcl_vars.mg_overworld_min,
+		y_max          = mcl_worlds.layer_to_y(13),
+	})
+
+	-- Rare spawn
+	minetest.register_ore({
+		ore_type       = "scatter",
+		ore            = "mcl_core:stone_with_redstone",
+		wherein         = stonelike,
+		clust_scarcity = 1000,
+		clust_num_ores = 4,
+		clust_size     = 3,
+		y_min          = mcl_worlds.layer_to_y(13),
+		y_max          = mcl_worlds.layer_to_y(15),
+	})
+	minetest.register_ore({
+		ore_type       = "scatter",
+		ore            = "mcl_core:stone_with_redstone",
+		wherein         = stonelike,
+		clust_scarcity = 1600,
+		clust_num_ores = 7,
+		clust_size     = 4,
+		y_min          = mcl_worlds.layer_to_y(13),
+		y_max          = mcl_worlds.layer_to_y(15),
+	})
+
+	--
+	-- Emerald
+	--
+
+	if mg_name == "v6" then
+		-- Generate everywhere in v6, but rarely.
+
+		-- Common spawn
+		minetest.register_ore({
+			ore_type       = "scatter",
+			ore            = "mcl_core:stone_with_emerald",
+			wherein        = stonelike,
+			clust_scarcity = 14340,
+			clust_num_ores = 1,
+			clust_size     = 1,
+			y_min          = mcl_vars.mg_overworld_min,
+			y_max          = mcl_worlds.layer_to_y(29),
+		})
+		-- Rare spawn
+		minetest.register_ore({
+			ore_type       = "scatter",
+			ore            = "mcl_core:stone_with_emerald",
+			wherein        = stonelike,
+			clust_scarcity = 21510,
+			clust_num_ores = 1,
+			clust_size     = 1,
+			y_min          = mcl_worlds.layer_to_y(30),
+			y_max          = mcl_worlds.layer_to_y(32),
+		})
+	end
+
+	--
+	-- Lapis Lazuli
+	--
+
+	-- Common spawn (in the center)
+	minetest.register_ore({
+		ore_type       = "scatter",
+		ore            = "mcl_core:stone_with_lapis",
+		wherein         = stonelike,
+		clust_scarcity = 10000,
+		clust_num_ores = 7,
+		clust_size     = 4,
+		y_min          = mcl_worlds.layer_to_y(14),
+		y_max          = mcl_worlds.layer_to_y(16),
+	})
+
+	-- Rare spawn (below center)
+	minetest.register_ore({
+		ore_type       = "scatter",
+		ore            = "mcl_core:stone_with_lapis",
+		wherein         = stonelike,
+		clust_scarcity = 12000,
+		clust_num_ores = 6,
+		clust_size     = 3,
+		y_min          = mcl_worlds.layer_to_y(10),
+		y_max          = mcl_worlds.layer_to_y(13),
+	})
+	minetest.register_ore({
+		ore_type       = "scatter",
+		ore            = "mcl_core:stone_with_lapis",
+		wherein         = stonelike,
+		clust_scarcity = 14000,
+		clust_num_ores = 5,
+		clust_size     = 3,
+		y_min          = mcl_worlds.layer_to_y(6),
+		y_max          = mcl_worlds.layer_to_y(9),
+	})
+	minetest.register_ore({
+		ore_type       = "scatter",
+		ore            = "mcl_core:stone_with_lapis",
+		wherein         = stonelike,
+		clust_scarcity = 16000,
+		clust_num_ores = 4,
+		clust_size     = 3,
+		y_min          = mcl_worlds.layer_to_y(2),
+		y_max          = mcl_worlds.layer_to_y(5),
+	})
+	minetest.register_ore({
+		ore_type       = "scatter",
+		ore            = "mcl_core:stone_with_lapis",
+		wherein         = stonelike,
+		clust_scarcity = 18000,
+		clust_num_ores = 3,
+		clust_size     = 2,
+		y_min          = mcl_worlds.layer_to_y(0),
+		y_max          = mcl_worlds.layer_to_y(2),
+	})
+
+	-- Rare spawn (above center)
+	minetest.register_ore({
+		ore_type       = "scatter",
+		ore            = "mcl_core:stone_with_lapis",
+		wherein         = stonelike,
+		clust_scarcity = 12000,
+		clust_num_ores = 6,
+		clust_size     = 3,
+		y_min          = mcl_worlds.layer_to_y(17),
+		y_max          = mcl_worlds.layer_to_y(20),
+	})
+	minetest.register_ore({
+		ore_type       = "scatter",
+		ore            = "mcl_core:stone_with_lapis",
+		wherein         = stonelike,
+		clust_scarcity = 14000,
+		clust_num_ores = 5,
+		clust_size     = 3,
+		y_min          = mcl_worlds.layer_to_y(21),
+		y_max          = mcl_worlds.layer_to_y(24),
+	})
+	minetest.register_ore({
+		ore_type       = "scatter",
+		ore            = "mcl_core:stone_with_lapis",
+		wherein         = stonelike,
+		clust_scarcity = 16000,
+		clust_num_ores = 4,
+		clust_size     = 3,
+		y_min          = mcl_worlds.layer_to_y(25),
+		y_max          = mcl_worlds.layer_to_y(28),
+	})
+	minetest.register_ore({
+		ore_type       = "scatter",
+		ore            = "mcl_core:stone_with_lapis",
+		wherein         = stonelike,
+		clust_scarcity = 18000,
+		clust_num_ores = 3,
+		clust_size     = 2,
+		y_min          = mcl_worlds.layer_to_y(29),
+		y_max          = mcl_worlds.layer_to_y(32),
+	})
+	minetest.register_ore({
+		ore_type       = "scatter",
+		ore            = "mcl_core:stone_with_lapis",
+		wherein         = stonelike,
+		clust_scarcity = 32000,
+		clust_num_ores = 1,
+		clust_size     = 1,
+		y_min          = mcl_worlds.layer_to_y(31),
+		y_max          = mcl_worlds.layer_to_y(32),
+	})
+
+	if minetest.settings:get_bool("mcl_generate_deepslate", true) then
+			local stonelike = { "mcl_core:stone", "mcl_core:diorite", "mcl_core:andesite", "mcl_core:granite" }
+		local function register_ore_mg(ore, scarcity, num, size, y_min, y_max, biomes)
+			biomes = biomes or ""
+			minetest.register_ore({
+				ore_type       = "scatter",
+				ore            = ore,
+				wherein        = { "mcl_deepslate:deepslate", "mcl_deepslate:tuff" },
+				clust_scarcity = scarcity,
+				clust_num_ores = num,
+				clust_size     = size,
+				y_min          = y_min,
+				y_max          = y_max,
+				biomes		   = biomes,
+			})
+		end
+		local ore_mapgen = {
+			{ "coal", 1575, 5, 3, deepslate_min, deepslate_max },
+			{ "coal", 1530, 8, 3, deepslate_min, deepslate_max },
+			{ "coal", 1500, 12, 3, deepslate_min, deepslate_max },
+			{ "iron", 830, 5, 3, deepslate_min, deepslate_max },
+			{ "gold", 4775, 5, 3, deepslate_min, deepslate_max },
+			{ "gold", 6560, 7, 3, deepslate_min, deepslate_max },
+			{ "diamond", 10000, 4, 3, deepslate_min, mcl_worlds.layer_to_y(12) },
+			{ "diamond", 5000, 2, 3, deepslate_min, mcl_worlds.layer_to_y(12) },
+			{ "diamond", 10000, 8, 3, deepslate_min, mcl_worlds.layer_to_y(12) },
+			{ "diamond", 20000, 1, 1, mcl_worlds.layer_to_y(13), mcl_worlds.layer_to_y(15) },
+			{ "diamond", 20000, 2, 2, mcl_worlds.layer_to_y(13), mcl_worlds.layer_to_y(15) },
+			{ "redstone", 500, 4, 3, deepslate_min, mcl_worlds.layer_to_y(13) },
+			{ "redstone", 800, 7, 4, deepslate_min, mcl_worlds.layer_to_y(13) },
+			{ "redstone", 1000, 4, 3, mcl_worlds.layer_to_y(13), mcl_worlds.layer_to_y(15) },
+			{ "redstone", 1600, 7, 4, mcl_worlds.layer_to_y(13), mcl_worlds.layer_to_y(15) },
+			{ "lapis", 10000, 7, 4, mcl_worlds.layer_to_y(14), deepslate_max },
+			{ "lapis", 12000, 6, 3, mcl_worlds.layer_to_y(10), mcl_worlds.layer_to_y(13) },
+			{ "lapis", 14000, 5, 3, mcl_worlds.layer_to_y(6), mcl_worlds.layer_to_y(9) },
+			{ "lapis", 16000, 4, 3, mcl_worlds.layer_to_y(2), mcl_worlds.layer_to_y(5) },
+			{ "lapis", 18000, 3, 2, mcl_worlds.layer_to_y(0), mcl_worlds.layer_to_y(2) },
+		}
+		for _, o in pairs(ore_mapgen) do
+			register_ore_mg("mcl_deepslate:deepslate_with_"..o[1], o[2], o[3], o[4], o[5], o[6])
+		end
+		if minetest.get_mapgen_setting("mg_name") == "v6" then
+			register_ore_mg("mcl_deepslate:deepslate_with_emerald", 14340, 1, 1, deepslate_min, deepslate_max)
+		else
+			register_ore_mg("mcl_deepslate:deepslate_with_emerald", 16384, 1, 1, mcl_worlds.layer_to_y(4), deepslate_max, mountains)
+		end
+		if copper_mod then
+			register_ore_mg("mcl_deepslate:deepslate_with_copper", 830, 5, 3, deepslate_min, deepslate_max)
+			minetest.register_ore({
+				ore_type       = "scatter",
+				ore            = "mcl_copper:stone_with_copper",
+				wherein        = stonelike,
+				clust_scarcity = 830,
+				clust_num_ores = 5,
+				clust_size     = 3,
+				y_min          = mcl_vars.mg_overworld_min,
+				y_max          = mcl_worlds.layer_to_y(39),
+			})
+			minetest.register_ore({
+				ore_type       = "scatter",
+				ore            = "mcl_copper:stone_with_copper",
+				wherein        = stonelike,
+				clust_scarcity = 1660,
+				clust_num_ores = 4,
+				clust_size     = 2,
+				y_min          = mcl_worlds.layer_to_y(40),
+				y_max          = mcl_worlds.layer_to_y(63),
+			})
+		end
+	end
+end
+
+if not superflat then
+-- Water and lava springs (single blocks of lava/water source)
+-- Water appears at nearly every height, but not near the bottom
+minetest.register_ore({
+	ore_type       = "scatter",
+	ore            = "mcl_core:water_source",
+	wherein         = {"mcl_core:stone", "mcl_core:andesite", "mcl_core:diorite", "mcl_core:granite", "mcl_core:dirt"},
+	clust_scarcity = 9000,
+	clust_num_ores = 1,
+	clust_size     = 1,
+	y_min          = mcl_worlds.layer_to_y(5),
+	y_max          = mcl_worlds.layer_to_y(128),
+})
+
+-- Lava springs are rather common at -31 and below
+minetest.register_ore({
+	ore_type       = "scatter",
+	ore            = "mcl_core:lava_source",
+	wherein         = stonelike,
+	clust_scarcity = 2000,
+	clust_num_ores = 1,
+	clust_size     = 1,
+	y_min          = mcl_worlds.layer_to_y(1),
+	y_max          = mcl_worlds.layer_to_y(10),
+})
+
+minetest.register_ore({
+	ore_type       = "scatter",
+	ore            = "mcl_core:lava_source",
+	wherein         = stonelike,
+	clust_scarcity = 9000,
+	clust_num_ores = 1,
+	clust_size     = 1,
+	y_min          = mcl_worlds.layer_to_y(11),
+	y_max          = mcl_worlds.layer_to_y(31),
+})
+
+-- Lava springs will become gradually rarer with increasing height
+minetest.register_ore({
+	ore_type       = "scatter",
+	ore            = "mcl_core:lava_source",
+	wherein         = stonelike,
+	clust_scarcity = 32000,
+	clust_num_ores = 1,
+	clust_size     = 1,
+	y_min          = mcl_worlds.layer_to_y(32),
+	y_max          = mcl_worlds.layer_to_y(47),
+})
+
+minetest.register_ore({
+	ore_type       = "scatter",
+	ore            = "mcl_core:lava_source",
+	wherein         = stonelike,
+	clust_scarcity = 72000,
+	clust_num_ores = 1,
+	clust_size     = 1,
+	y_min          = mcl_worlds.layer_to_y(48),
+	y_max          = mcl_worlds.layer_to_y(61),
+})
+
+-- Lava may even appear above surface, but this is very rare
+minetest.register_ore({
+	ore_type       = "scatter",
+	ore            = "mcl_core:lava_source",
+	wherein         = stonelike,
+	clust_scarcity = 96000,
+	clust_num_ores = 1,
+	clust_size     = 1,
+	y_min          = mcl_worlds.layer_to_y(62),
+	y_max          = mcl_worlds.layer_to_y(127),
+})
+end

mods/MAPGEN/mcl_mapgen_core/v6.lua

@@ -0,0 +1,832 @@
+local WITCH_HUT_HEIGHT = 3 -- Exact Y level to spawn witch huts at. This height refers to the height of the floor
+
+local function register_mgv6_decorations()
+	-- Cacti
+	minetest.register_decoration({
+		deco_type = "simple",
+		place_on = {"group:sand"},
+		sidelen = 16,
+		noise_params = {
+			offset = -0.012,
+			scale = 0.024,
+			spread = {x = 100, y = 100, z = 100},
+			seed = 257,
+			octaves = 3,
+			persist = 0.6
+		},
+		y_min = 4,
+		y_max = mcl_vars.mg_overworld_max,
+		decoration = "mcl_core:cactus",
+		height = 1,
+		height_max = 3,
+	})
+
+	-- Sugar canes
+	minetest.register_decoration({
+		deco_type = "simple",
+		place_on = {"mcl_core:dirt", "mcl_core:coarse_dirt", "group:grass_block_no_snow", "group:sand", "mcl_core:podzol", "mcl_core:reeds"},
+		sidelen = 16,
+		noise_params = {
+			offset = -0.3,
+			scale = 0.7,
+			spread = {x = 100, y = 100, z = 100},
+			seed = 465,
+			octaves = 3,
+			persist = 0.7
+		},
+		y_min = 1,
+		y_max = mcl_vars.mg_overworld_max,
+		decoration = "mcl_core:reeds",
+		height = 1,
+		height_max = 3,
+		spawn_by = { "mcl_core:water_source", "group:frosted_ice" },
+		num_spawn_by = 1,
+	})
+
+	-- Doubletall grass
+	minetest.register_decoration({
+		deco_type = "schematic",
+		schematic = {
+			size = { x=1, y=3, z=1 },
+			data = {
+				{ name = "air", prob = 0 },
+				{ name = "mcl_flowers:double_grass", param1 = 255, },
+				{ name = "mcl_flowers:double_grass_top", param1 = 255, },
+			},
+		},
+		place_on = {"group:grass_block_no_snow"},
+		sidelen = 8,
+		noise_params = {
+			offset = -0.0025,
+			scale = 0.03,
+			spread = {x = 100, y = 100, z = 100},
+			seed = 420,
+			octaves = 3,
+			persist = 0.0,
+		},
+		y_min = 1,
+		y_max = mcl_vars.mg_overworld_max,
+	})
+
+	-- Large ferns
+	minetest.register_decoration({
+		deco_type = "schematic",
+		schematic = {
+			size = { x=1, y=3, z=1 },
+			data = {
+				{ name = "air", prob = 0 },
+				{ name = "mcl_flowers:double_fern", param1=255, },
+				{ name = "mcl_flowers:double_fern_top", param1=255, },
+			},
+		},
+		-- v6 hack: This makes sure large ferns only appear in jungles
+		spawn_by = { "mcl_core:jungletree", "mcl_flowers:fern" },
+		num_spawn_by = 1,
+		place_on = {"group:grass_block_no_snow"},
+
+		sidelen = 16,
+		noise_params = {
+			offset = 0,
+			scale = 0.01,
+			spread = {x = 250, y = 250, z = 250},
+			seed = 333,
+			octaves = 2,
+			persist = 0.66,
+		},
+		y_min = 1,
+		y_max = mcl_vars.mg_overworld_max,
+	})
+
+	-- Large flowers
+	local function register_large_flower(name, seed, offset)
+		minetest.register_decoration({
+			deco_type = "schematic",
+			schematic = {
+				size = { x=1, y=3, z=1 },
+				data = {
+					{ name = "air", prob = 0 },
+					{ name = "mcl_flowers:"..name, param1=255, },
+					{ name = "mcl_flowers:"..name.."_top", param1=255, },
+				},
+			},
+			place_on = {"group:grass_block_no_snow"},
+
+			sidelen = 16,
+			noise_params = {
+				offset = offset,
+				scale = 0.01,
+				spread = {x = 300, y = 300, z = 300},
+				seed = seed,
+				octaves = 5,
+				persist = 0.62,
+			},
+			y_min = 1,
+			y_max = mcl_vars.overworld_max,
+			flags = "",
+		})
+	end
+
+	register_large_flower("rose_bush", 9350, -0.008)
+	register_large_flower("peony", 10450, -0.008)
+	register_large_flower("lilac", 10600, -0.007)
+	register_large_flower("sunflower", 2940, -0.005)
+
+	-- Lily pad
+	minetest.register_decoration({
+		deco_type = "schematic",
+		schematic = {
+			size = { x=1, y=3, z=1 },
+			data = {
+				{ name = "mcl_core:water_source", prob = 0 },
+				{ name = "mcl_core:water_source" },
+				{ name = "mcl_flowers:waterlily", param1 = 255 },
+			},
+		},
+		place_on = "mcl_core:dirt",
+		sidelen = 16,
+		noise_params = {
+			offset = -0.12,
+			scale = 0.3,
+			spread = {x = 200, y = 200, z = 200},
+			seed = 503,
+			octaves = 6,
+			persist = 0.7,
+		},
+		y_min = 0,
+		y_max = 0,
+		rotation = "random",
+	})
+
+	-- Pumpkin
+	minetest.register_decoration({
+		deco_type = "simple",
+		decoration = "mcl_farming:pumpkin",
+		param2 = 0,
+		param2_max = 3,
+		place_on = {"group:grass_block_no_snow"},
+		sidelen = 16,
+		noise_params = {
+			offset = -0.008,
+			scale = 0.00666,
+			spread = {x = 250, y = 250, z = 250},
+			seed = 666,
+			octaves = 6,
+			persist = 0.666
+		},
+		y_min = 1,
+		y_max = mcl_vars.overworld_max,
+	})
+
+	-- Melon
+	minetest.register_decoration({
+		deco_type = "simple",
+		place_on = {"group:grass_block_no_snow"},
+		sidelen = 16,
+		noise_params = {
+			offset = 0.002,
+			scale = 0.006,
+			spread = {x = 250, y = 250, z = 250},
+			seed = 333,
+			octaves = 3,
+			persist = 0.6
+		},
+		-- Small trick to make sure melon spawn in jungles
+		spawn_by = { "mcl_core:jungletree", "mcl_flowers:fern" },
+		num_spawn_by = 1,
+		y_min = 1,
+		y_max = 40,
+		decoration = "mcl_farming:melon",
+	})
+
+	-- Tall grass
+	minetest.register_decoration({
+		deco_type = "simple",
+		place_on = {"group:grass_block_no_snow"},
+		sidelen = 8,
+		noise_params = {
+			offset = 0.01,
+			scale = 0.3,
+			spread = {x = 100, y = 100, z = 100},
+			seed = 420,
+			octaves = 3,
+			persist = 0.6
+		},
+		y_min = 1,
+		y_max = mcl_vars.overworld_max,
+		decoration = "mcl_flowers:tallgrass",
+	})
+	minetest.register_decoration({
+		deco_type = "simple",
+		place_on = {"group:grass_block_no_snow"},
+		sidelen = 8,
+		noise_params = {
+			offset = 0.04,
+			scale = 0.03,
+			spread = {x = 100, y = 100, z = 100},
+			seed = 420,
+			octaves = 3,
+			persist = 0.6
+		},
+		y_min = 1,
+		y_max = mcl_vars.overworld_max,
+		decoration = "mcl_flowers:tallgrass",
+	})
+
+	-- Seagrass and kelp
+	local materials = {"dirt","sand"}
+	for i=1, #materials do
+		local mat = materials[i]
+
+		minetest.register_decoration({
+			deco_type = "simple",
+			spawn_by = {"group:water"},
+			num_spawn_by = 1,
+			place_on = {"mcl_core:"..mat},
+			sidelen = 8,
+			noise_params = {
+				offset = 0.04,
+				scale = 0.3,
+				spread = {x = 100, y = 100, z = 100},
+				seed = 421,
+				octaves = 3,
+				persist = 0.6
+			},
+			flags = "force_placement",
+			place_offset_y = -1,
+			y_min = mcl_vars.overworld_min,
+			y_max = 0,
+			decoration = "mcl_ocean:seagrass_"..mat,
+		})
+		minetest.register_decoration({
+			deco_type = "simple",
+			spawn_by = {"group:water"},
+			num_spawn_by = 1,
+			place_on = {"mcl_core:mat"},
+			sidelen = 8,
+			noise_params = {
+				offset = 0.08,
+				scale = 0.03,
+				spread = {x = 100, y = 100, z = 100},
+				seed = 421,
+				octaves = 3,
+				persist = 0.6
+			},
+			flags = "force_placement",
+			place_offset_y = -1,
+			y_min = mcl_vars.overworld_min,
+			y_max = -5,
+			decoration = "mcl_ocean:seagrass_"..mat,
+		})
+
+		minetest.register_decoration({
+			deco_type = "simple",
+			spawn_by = {"group:water"},
+			num_spawn_by = 1,
+			place_on = {"mcl_core:"..mat},
+			sidelen = 16,
+			noise_params = {
+				offset = 0.01,
+				scale = 0.01,
+				spread = {x = 300, y = 300, z = 300},
+				seed = 505,
+				octaves = 5,
+				persist = 0.62,
+			},
+			flags = "force_placement",
+			place_offset_y = -1,
+			y_min = mcl_vars.overworld_min,
+			y_max = -6,
+			decoration = "mcl_ocean:kelp_"..mat,
+			param2 = 16,
+			param2_max = 96,
+		})
+		minetest.register_decoration({
+			deco_type = "simple",
+			spawn_by = {"group:water"},
+			num_spawn_by = 1,
+			place_on = {"mcl_core:"..mat},
+			sidelen = 16,
+			noise_params = {
+				offset = 0.01,
+				scale = 0.01,
+				spread = {x = 100, y = 100, z = 100},
+				seed = 506,
+				octaves = 5,
+				persist = 0.62,
+			},
+			flags = "force_placement",
+			place_offset_y = -1,
+			y_min = mcl_vars.overworld_min,
+			y_max = -15,
+			decoration = "mcl_ocean:kelp_"..mat,
+			param2 = 32,
+			param2_max = 160,
+		})
+
+	end
+
+	-- Wet Sponge
+	-- TODO: Remove this when we got ocean monuments
+	minetest.register_decoration({
+		deco_type = "simple",
+		decoration = "mcl_sponges:sponge_wet",
+		spawn_by = {"group:water"},
+		num_spawn_by = 1,
+		place_on = {"mcl_core:dirt","mcl_core:sand"},
+		sidelen = 16,
+		noise_params = {
+			offset = 0.00295,
+			scale = 0.006,
+			spread = {x = 250, y = 250, z = 250},
+			seed = 999,
+			octaves = 3,
+			persist = 0.666
+		},
+		flags = "force_placement",
+		y_min = mcl_vars.mg_lava_overworld_max + 5,
+		y_max = -20,
+	})
+
+	-- Add a small amount of tall grass everywhere to avoid areas completely empty devoid of tall grass
+	minetest.register_decoration({
+		deco_type = "simple",
+		place_on = {"group:grass_block_no_snow"},
+		sidelen = 8,
+		fill_ratio = 0.004,
+		y_min = 1,
+		y_max = mcl_vars.overworld_max,
+		decoration = "mcl_flowers:tallgrass",
+	})
+
+	local mushrooms = {"mcl_mushrooms:mushroom_red", "mcl_mushrooms:mushroom_brown"}
+	local mseeds = { 7133, 8244 }
+	for m=1, #mushrooms do
+		-- Mushrooms next to trees
+		minetest.register_decoration({
+			deco_type = "simple",
+			place_on = {"group:grass_block_no_snow", "mcl_core:dirt", "mcl_core:podzol", "mcl_core:mycelium", "mcl_core:stone", "mcl_core:andesite", "mcl_core:diorite", "mcl_core:granite"},
+			sidelen = 16,
+			noise_params = {
+				offset = 0.04,
+				scale = 0.04,
+				spread = {x = 100, y = 100, z = 100},
+				seed = mseeds[m],
+				octaves = 3,
+				persist = 0.6
+			},
+			y_min = 1,
+			y_max = mcl_vars.mg_overworld_max,
+			decoration = mushrooms[m],
+			spawn_by = { "mcl_core:tree", "mcl_core:sprucetree", "mcl_core:darktree", "mcl_core:birchtree", },
+			num_spawn_by = 1,
+		})
+	end
+
+	-- Dead bushes
+	minetest.register_decoration({
+		deco_type = "simple",
+		place_on = {"group:sand", "mcl_core:podzol", "mcl_core:dirt", "mcl_core:coarse_dirt", "group:hardened_clay"},
+		sidelen = 16,
+		noise_params = {
+			offset = 0,
+			scale = 0.035,
+			spread = {x = 100, y = 100, z = 100},
+			seed = 1972,
+			octaves = 3,
+			persist = 0.6
+		},
+		y_min = 4,
+		y_max = mcl_vars.mg_overworld_max,
+		decoration = "mcl_core:deadbush",
+	})
+
+	local function register_mgv6_flower(name, seed, offset, y_max)
+		if offset == nil then
+			offset = 0
+		end
+		if y_max == nil then
+			y_max = mcl_vars.mg_overworld_max
+		end
+		minetest.register_decoration({
+			deco_type = "simple",
+			place_on = {"group:grass_block_no_snow"},
+			sidelen = 16,
+			noise_params = {
+				offset = offset,
+				scale = 0.006,
+				spread = {x = 100, y = 100, z = 100},
+				seed = seed,
+				octaves = 3,
+				persist = 0.6
+			},
+			y_min = 1,
+			y_max = y_max,
+			decoration = "mcl_flowers:"..name,
+		})
+	end
+
+	register_mgv6_flower("tulip_red",  436)
+	register_mgv6_flower("tulip_orange", 536)
+	register_mgv6_flower("tulip_pink", 636)
+	register_mgv6_flower("tulip_white", 736)
+	register_mgv6_flower("azure_bluet", 800)
+	register_mgv6_flower("dandelion", 8)
+	-- Allium is supposed to only appear in flower forest in MC. There are no flower forests in v6.
+	-- We compensate by making it slightly rarer in v6.
+	register_mgv6_flower("allium", 0, -0.001)
+	--[[ Blue orchid is supposed to appear in swamplands. There are no swamplands in v6.
+	We emulate swamplands by limiting the height to 5 levels above sea level,
+	which should be close to the water. ]]
+	register_mgv6_flower("blue_orchid", 64500, nil, mcl_worlds.layer_to_y(67))
+	register_mgv6_flower("oxeye_daisy", 3490)
+	register_mgv6_flower("poppy", 9439)
+
+	-- Put top snow on snowy grass blocks. The v6 mapgen does not generate the top snow on its own.
+	minetest.register_decoration({
+		deco_type = "simple",
+		place_on = {"group:grass_block_snow"},
+		sidelen = 16,
+		fill_ratio = 11.0, -- complete coverage
+		y_min = 1,
+		y_max = mcl_vars.mg_overworld_max,
+		decoration = "mcl_core:snow",
+	})
+
+end
+register_mgv6_decorations()
+
+local function generate_mgv6_structures()
+	local chunk_has_igloo = false
+	local struct_min, struct_max = -3, 111 --64
+	--except end exit portall all v6
+	if maxp.y >= struct_min and minp.y <= struct_max then
+		-- Generate structures
+		local pr = PcgRandom(blockseed)
+		perlin_structures = perlin_structures or minetest.get_perlin(329, 3, 0.6, 100)
+		-- Assume X and Z lengths are equal
+		local divlen = 5
+		for x0 = minp.x, maxp.x, divlen do for z0 = minp.z, maxp.z, divlen do
+			-- Determine amount from perlin noise
+			local amount = math.floor(perlin_structures:get_2d({x=x0, y=z0}) * 9)
+			-- Find random positions based on this random
+			local p, ground_y
+			for i=0, amount do
+				p = {x = pr:next(x0, x0+divlen-1), y = 0, z = pr:next(z0, z0+divlen-1)}
+				-- Find ground level
+				ground_y = nil
+				local nn
+				for y = struct_max, struct_min, -1 do
+					p.y = y
+					local checknode = minetest.get_node(p)
+					if checknode then
+						nn = checknode.name
+						local def = minetest.registered_nodes[nn]
+						if def and def.walkable then
+							ground_y = y
+							break
+						end
+					end
+				end
+
+				if ground_y then
+					p.y = ground_y+1
+					local nn0 = minetest.get_node(p).name
+					-- Check if the node can be replaced
+					if minetest.registered_nodes[nn0] and minetest.registered_nodes[nn0].buildable_to then
+						-- Igloos
+						if not chunk_has_igloo and (nn == "mcl_core:snowblock" or nn == "mcl_core:snow" or (minetest.get_item_group(nn, "grass_block_snow") == 1)) then
+							if pr:next(1, 4400) == 1 then
+								-- Check surface
+								local floor = {x=p.x+9, y=p.y-1, z=p.z+9}
+								local surface = minetest.find_nodes_in_area({x=p.x,y=p.y-1,z=p.z}, floor, "mcl_core:snowblock")
+								local surface2 = minetest.find_nodes_in_area({x=p.x,y=p.y-1,z=p.z}, floor, "mcl_core:dirt_with_grass_snow")
+								if #surface + #surface2 >= 63 then
+									mcl_structures.call_struct(p, "igloo", nil, pr)
+									chunk_has_igloo = true
+								end
+							end
+						end
+
+						-- Fossil
+						if nn == "mcl_core:sandstone" or nn == "mcl_core:sand" and not chunk_has_desert_temple and ground_y > 3 then
+							local fossil_prob = minecraft_chunk_probability(64, minp, maxp)
+
+							if pr:next(1, fossil_prob) == 1 then
+								-- Spawn fossil below desert surface between layers 40 and 49
+								local p1 = {x=p.x, y=pr:next(mcl_worlds.layer_to_y(40), mcl_worlds.layer_to_y(49)), z=p.z}
+								-- Very rough check of the environment (we expect to have enough stonelike nodes).
+								-- Fossils may still appear partially exposed in caves, but this is O.K.
+								local p2 = vector.add(p1, 4)
+								local nodes = minetest.find_nodes_in_area(p1, p2, {"mcl_core:sandstone", "mcl_core:stone", "mcl_core:diorite", "mcl_core:andesite", "mcl_core:granite", "mcl_core:stone_with_coal", "mcl_core:dirt", "mcl_core:gravel"})
+
+								if #nodes >= 100 then -- >= 80%
+									mcl_structures.call_struct(p1, "fossil", nil, pr)
+								end
+							end
+						end
+
+						-- Witch hut (v6)
+						if ground_y <= 0 and nn == "mcl_core:dirt" then
+						local prob = minecraft_chunk_probability(48, minp, maxp)
+						if pr:next(1, prob) == 1 then
+
+							local swampland = minetest.get_biome_id("Swampland")
+							local swampland_shore = minetest.get_biome_id("Swampland_shore")
+
+						-- Where do witches live?
+							-- v6: In Normal biome
+							if biomeinfo.get_v6_biome(p) == "Normal" then
+								here_be_witches = true
+							end
+							local here_be_witches = false
+							if here_be_witches then
+
+								local r = tostring(pr:next(0, 3) * 90) -- "0", "90", "180" or 270"
+								local p1 = {x=p.x-1, y=WITCH_HUT_HEIGHT+2, z=p.z-1}
+								local size
+								if r == "0" or r == "180" then
+									size = {x=10, y=4, z=8}
+								else
+									size = {x=8, y=4, z=10}
+								end
+								local p2 = vector.add(p1, size)
+
+								-- This checks free space at the “body” of the hut and a bit around.
+								-- ALL nodes must be free for the placement to succeed.
+								local free_nodes = minetest.find_nodes_in_area(p1, p2, {"air", "mcl_core:water_source", "mcl_flowers:waterlily"})
+								if #free_nodes >= ((size.x+1)*(size.y+1)*(size.z+1)) then
+									local place = {x=p.x, y=WITCH_HUT_HEIGHT-1, z=p.z}
+
+									-- FIXME: For some mysterious reason (black magic?) this
+									-- function does sometimes NOT spawn the witch hut. One can only see the
+									-- oak wood nodes in the water, but no hut. :-/
+									mcl_structures.place_structure(place,mcl_structures.registered_structures["witch_hut"],pr)
+
+									local function place_tree_if_free(pos, prev_result)
+										local nn = minetest.get_node(pos).name
+										if nn == "mcl_flowers:waterlily" or nn == "mcl_core:water_source" or nn == "mcl_core:water_flowing" or nn == "air" then
+											minetest.set_node(pos, {name="mcl_core:tree", param2=0})
+											return prev_result
+										else
+											return false
+										end
+									end
+									local offsets
+									if r == "0" then
+										offsets = {
+											{x=1, y=0, z=1},
+											{x=1, y=0, z=5},
+											{x=6, y=0, z=1},
+											{x=6, y=0, z=5},
+										}
+									elseif r == "180" then
+										offsets = {
+											{x=2, y=0, z=1},
+											{x=2, y=0, z=5},
+											{x=7, y=0, z=1},
+											{x=7, y=0, z=5},
+										}
+									elseif r == "270" then
+										offsets = {
+											{x=1, y=0, z=1},
+											{x=5, y=0, z=1},
+											{x=1, y=0, z=6},
+											{x=5, y=0, z=6},
+										}
+									elseif r == "90" then
+										offsets = {
+											{x=1, y=0, z=2},
+											{x=5, y=0, z=2},
+											{x=1, y=0, z=7},
+											{x=5, y=0, z=7},
+										}
+									end
+									for o=1, #offsets do
+										local ok = true
+										for y=place.y-1, place.y-64, -1 do
+											local tpos = vector.add(place, offsets[o])
+											tpos.y = y
+											ok = place_tree_if_free(tpos, ok)
+											if not ok then
+												break
+											end
+										end
+									end
+								end
+							end
+						end
+						end
+
+						-- Ice spikes in v6
+						-- In other mapgens, ice spikes are generated as decorations.
+						if nn == "mcl_core:snowblock" then
+							local spike = pr:next(1,58000)
+							if spike < 3 then
+								-- Check surface
+								local floor = {x=p.x+4, y=p.y-1, z=p.z+4}
+								local surface = minetest.find_nodes_in_area({x=p.x+1,y=p.y-1,z=p.z+1}, floor, {"mcl_core:snowblock"})
+								-- Check for collision with spruce
+								local spruce_collisions = minetest.find_nodes_in_area({x=p.x+1,y=p.y+2,z=p.z+1}, {x=p.x+4, y=p.y+6, z=p.z+4}, {"mcl_core:sprucetree", "mcl_core:spruceleaves"})
+
+								if #surface >= 9 and #spruce_collisions == 0 then
+									mcl_structures.place_structure(p,mcl_structures.registered_structures["ice_spike_large"],pr)
+								end
+							elseif spike < 100 then
+								-- Check surface
+								local floor = {x=p.x+6, y=p.y-1, z=p.z+6}
+								local surface = minetest.find_nodes_in_area({x=p.x+1,y=p.y-1,z=p.z+1}, floor, {"mcl_core:snowblock", "mcl_core:dirt_with_grass_snow"})
+
+								-- Check for collision with spruce
+								local spruce_collisions = minetest.find_nodes_in_area({x=p.x+1,y=p.y+1,z=p.z+1}, {x=p.x+6, y=p.y+6, z=p.z+6}, {"mcl_core:sprucetree", "mcl_core:spruceleaves"})
+
+								if #surface >= 25 and #spruce_collisions == 0 then
+									mcl_structures.place_structure(p,mcl_structures.registered_structures["ice_spike_small"],pr)
+								end
+							end
+						end
+					end
+				end
+			end
+		end end
+	end
+end
+
+-- Generate mushrooms in caves manually.
+-- only v6. minetest supports cave decos via "all_floors" flag now
+local function generate_underground_mushrooms(minp, maxp, seed)
+	local pr_shroom = PseudoRandom(seed-24359)
+	-- Generate rare underground mushrooms
+	-- TODO: Make them appear in groups, use Perlin noise
+	local min, max = mcl_vars.mg_lava_overworld_max + 4, 0
+	if minp.y > max or maxp.y < min then
+		return
+	end
+
+	local bpos
+	local stone = minetest.find_nodes_in_area_under_air(minp, maxp, {"mcl_core:stone", "mcl_core:dirt", "mcl_core:mycelium", "mcl_core:podzol", "mcl_core:andesite", "mcl_core:diorite", "mcl_core:granite", "mcl_core:stone_with_coal", "mcl_core:stone_with_iron", "mcl_core:stone_with_gold"})
+
+	for n = 1, #stone do
+		bpos = {x = stone[n].x, y = stone[n].y + 1, z = stone[n].z }
+
+		local l = minetest.get_node_light(bpos, 0.5)
+		if bpos.y >= min and bpos.y <= max and l and l <= 12 and pr_shroom:next(1,1000) < 4 then
+			if pr_shroom:next(1,2) == 1 then
+				minetest.set_node(bpos, {name = "mcl_mushrooms:mushroom_brown"})
+			else
+				minetest.set_node(bpos, {name = "mcl_mushrooms:mushroom_red"})
+			end
+		end
+	end
+end
+
+-- Generate Nether decorations manually: Eternal fire, mushrooms, nether wart
+-- (only v6)
+local nether_wart_chance = 85
+local function generate_nether_decorations(minp, maxp, seed)
+	local pr_nether = PseudoRandom(seed+667)
+
+	if minp.y > mcl_vars.mg_nether_max or maxp.y < mcl_vars.mg_nether_min then
+		return
+	end
+
+	minetest.log("action", "[mcl_mapgen_core] Nether decorations " .. minetest.pos_to_string(minp) .. " ... " .. minetest.pos_to_string(maxp))
+
+	-- TODO: Generate everything based on Perlin noise instead of PseudoRandom
+
+	local bpos
+	local rack = minetest.find_nodes_in_area_under_air(minp, maxp, {"mcl_nether:netherrack"})
+	local magma = minetest.find_nodes_in_area_under_air(minp, maxp, {"mcl_nether:magma"})
+	local ssand = minetest.find_nodes_in_area_under_air(minp, maxp, {"mcl_nether:soul_sand"})
+
+	-- Helper function to spawn “fake” decoration
+	local function special_deco(nodes, spawn_func)
+		for n = 1, #nodes do
+			bpos = {x = nodes[n].x, y = nodes[n].y + 1, z = nodes[n].z }
+
+			spawn_func(bpos)
+		end
+	end
+	-- Eternal fire on netherrack
+	special_deco(rack, function(bpos)
+		-- Eternal fire on netherrack
+		if pr_nether:next(1,100) <= 3 then
+			minetest.set_node(bpos, {name = "mcl_fire:eternal_fire"})
+		end
+	end)
+
+	-- Eternal fire on magma cubes
+	special_deco(magma, function(bpos)
+		if pr_nether:next(1,150) == 1 then
+			minetest.set_node(bpos, {name = "mcl_fire:eternal_fire"})
+		end
+	end)
+
+	-- Mushrooms on netherrack
+	-- Note: Spawned *after* the fire because of light level checks
+	special_deco(rack, function(bpos)
+		local l = minetest.get_node_light(bpos, 0.5)
+		if bpos.y > mcl_vars.mg_lava_nether_max + 6 and l and l <= 12 and pr_nether:next(1,1000) <= 4 then
+			-- TODO: Make mushrooms appear in groups, use Perlin noise
+			if pr_nether:next(1,2) == 1 then
+				minetest.set_node(bpos, {name = "mcl_mushrooms:mushroom_brown"})
+			else
+				minetest.set_node(bpos, {name = "mcl_mushrooms:mushroom_red"})
+			end
+		end
+	end)
+
+	-- Nether wart on soul sand
+	-- TODO: Spawn in Nether fortresses
+	special_deco(ssand, function(bpos)
+		if pr_nether:next(1, nether_wart_chance) == 1 then
+			minetest.set_node(bpos, {name = "mcl_nether:nether_wart"})
+		end
+	end)
+end
+
+local function remove_mgv6_broken_plants(minp,maxp)
+	--[[ Remove broken double plants caused by v6 weirdness.
+	v6 might break the bottom part of double plants because of how it works.
+	There are 3 possibilities:
+	1) Jungle: Top part is placed on top of a jungle tree or fern (=v6 jungle grass).
+		This is because the schematic might be placed even if some nodes of it
+		could not be placed because the destination was already occupied.
+		TODO: A better fix for this would be if schematics could abort placement
+		altogether if ANY of their nodes could not be placed.
+	2) Cavegen: Removes the bottom part, the upper part floats
+	3) Mudflow: Same as 2) ]]
+
+	local plants = minetest.find_nodes_in_area(minp, maxp, "group:double_plant")
+	for n = 1, #plants do
+		local node = vm:get_node_at(plants[n])
+		local is_top = minetest.get_item_group(node.name, "double_plant") == 2
+		if is_top then
+			local p_pos = area:index(plants[n].x, plants[n].y-1, plants[n].z)
+			if p_pos then
+				node = vm:get_node_at({x=plants[n].x, y=plants[n].y-1, z=plants[n].z})
+				local is_bottom = minetest.get_item_group(node.name, "double_plant") == 1
+				if not is_bottom then
+					p_pos = area:index(plants[n].x, plants[n].y, plants[n].z)
+					data[p_pos] = c_air
+					lvm_used = true
+				end
+			end
+		end
+	end
+end
+
+local function basic(vm, data, data2, emin, emax, area, minp, maxp, blockseed)
+	if not (minp.y <= mcl_vars.mg_nether_max and maxp.y >= mcl_vars.mg_nether_min) then
+		return
+	end
+		-- Nether block fixes:
+	-- * Replace water with Nether lava.
+	-- * Replace stone, sand dirt in v6 so the Nether works in v6.
+	local nodes = minetest.find_nodes_in_area(emin, emax, {"group:water"})
+	for _, n in pairs(nodes) do
+		data[area:index(n.x, n.y, n.z)] = c_nether_lava
+		lvm_used = true
+	end
+	nodes = minetest.find_nodes_in_area(emin, emax, {"mcl_core:water_source", "mcl_core:stone", "mcl_core:sand", "mcl_core:dirt"})
+	for n=1, #nodes do
+		local p_pos = area:index(nodes[n].x, nodes[n].y, nodes[n].z)
+		if data[p_pos] == c_water then
+			data[p_pos] = c_nether_lava
+			lvm_used = true
+		elseif data[p_pos] == c_stone then
+			data[p_pos] = c_netherrack
+			lvm_used = true
+		elseif data[p_pos] == c_sand or data[p_pos] == c_dirt then
+			data[p_pos] = c_soul_sand
+			lvm_used = true
+		end
+	end
+end
+
+local function end_fixes(minp,maxp)
+	if not ( minp.y <= mcl_vars.mg_end_max and maxp.y >= mcl_vars.mg_end_min ) then
+		return
+	end
+	local nodes = minetest.find_nodes_in_area(emin, emax, {"mcl_core:water_source", "mcl_core:stone", "mcl_core:sand", "mcl_core:dirt"})
+	if #nodes > 0 then
+		lvm_used = true
+		for _,n in pairs(nodes) do
+			data[area:index(n.x, n.y, n.z)] = c_air
+		end
+	end
+end
+
+local function basic_node(minp, maxp, blockseed)
+	if mg_name ~= "singlenode" then
+		-- Generate special decorations
+		if mg_name == "v6" then
+			generate_underground_mushrooms(minp, maxp, blockseed)
+			generate_nether_decorations(minp, maxp, blockseed)
+			end_fixes(minp,maxp)
+			remove_mgv6_broken_plants(minp,maxp,blockseed)
+			generate_mgv6_structures(minp, maxp, blockseed, minetest.get_mapgen_object("biomemap"))
+		end
+	end
+end
+
+mcl_mapgen_core.register_generator("mgv6-fixes", basic, basic_node, 10, true)

mods/MAPGEN/mcl_structures/api.lua

@@ -4,8 +4,10 @@ local disabled_structures = minetest.settings:get("mcl_disabled_structures")
 if disabled_structures then	disabled_structures = disabled_structures:split(",")
 else disabled_structures = {} end
 
+local logging = minetest.settings:get_bool("mcl_logging_structures",true)
+
 function mcl_structures.is_disabled(structname)
-	if table.indexof(disabled_structures,structname) ~= -1 then return true end
+	return table.indexof(disabled_structures,structname) ~= -1
 end
 
 function mcl_structures.fill_chests(p1,p2,loot,pr)
@@ -22,12 +24,19 @@ function mcl_structures.fill_chests(p1,p2,loot,pr)
 end
 
 local function generate_loot(pos, def, pr)
-	local hl = def.sidelen / 2
+	local hl = def.sidelen
 	local p1 = vector.offset(pos,-hl,-hl,-hl)
 	local p2 = vector.offset(pos,hl,hl,hl)
 	if def.loot then mcl_structures.fill_chests(p1,p2,def.loot,pr) end
 end
 
+local function construct_nodes(pos,def,pr)
+	local nn = minetest.find_nodes_in_area(vector.offset(pos,-def.sidelen/2,0,-def.sidelen/2),vector.offset(pos,def.sidelen/2,def.sidelen,def.sidelen/2),def.construct_nodes)
+	for _,p in pairs(nn) do
+		mcl_structures.init_node_construct(p)
+	end
+end
+
 
 function mcl_structures.find_lowest_y(pp)
 	local y = 31000
@@ -129,7 +138,7 @@ end
 
 function mcl_structures.place_structure(pos, def, pr, blockseed)
 	if not def then	return end
-	local logging = not def.terrain_feature
+	local log_enabled = logging and not def.terrain_feature
 	local y_offset = 0
 	if type(def.y_offset) == "function" then
 		y_offset = def.y_offset(pr)
@@ -146,7 +155,7 @@ function mcl_structures.place_structure(pos, def, pr, blockseed)
 			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)
 			else
-				if logging then
+				if log_enabled then
 					minetest.log("warning","[mcl_structures] "..def.name.." at "..minetest.pos_to_string(pp).." not placed. No solid ground.")
 				end
 				return false
@@ -154,7 +163,7 @@ function mcl_structures.place_structure(pos, def, pr, blockseed)
 		end
 	end
 	if def.on_place and not def.on_place(pos,def,pr,blockseed) then
-		if logging then
+		if log_enabled then
 			minetest.log("warning","[mcl_structures] "..def.name.." at "..minetest.pos_to_string(pp).." not placed. Conditions not satisfied.")
 		end
 		return false
@@ -168,23 +177,26 @@ function mcl_structures.place_structure(pos, def, pr, blockseed)
 			if def.after_place then ap = def.after_place  end
 
 			mcl_structures.place_schematic(pp, file, "random", nil, true, "place_center_x,place_center_z",function(p)
-				if def.loot then generate_loot(pos,def,pr,blockseed) end
-				return ap(pos,def,pr,blockseed)
+				if def.loot then generate_loot(pp,def,pr,blockseed) end
+				if def.construct_nodes then construct_nodes(pp,def,pr,blockseed) end
+				return ap(pp,def,pr,blockseed)
 			end,pr)
-			if logging then
+			if log_enabled then
 				minetest.log("action","[mcl_structures] "..def.name.." placed at "..minetest.pos_to_string(pp))
 			end
 			return true
 		end
-	elseif def.place_func and def.place_func(pos,def,pr,blockseed) then
-		if not def.after_place or ( def.after_place  and def.after_place(pos,def,pr,blockseed) ) then
-			if logging then
+	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 log_enabled then
 				minetest.log("action","[mcl_structures] "..def.name.." placed at "..minetest.pos_to_string(pp))
 			end
 			return true
 		end
 	end
-	if logging then
+	if log_enabled then
 		minetest.log("warning","[mcl_structures] placing "..def.name.." failed at "..minetest.pos_to_string(pos))
 	end
 end
@@ -201,28 +213,31 @@ function mcl_structures.register_structure(name,def,nospawn) --nospawn means it
 		sbgroups.structblock = nil
 		sbgroups.structblock_lbm = 1
 	else
-		minetest.register_on_mods_loaded(function() --make sure all previous decorations and biomes have been registered
-			def.deco = minetest.register_decoration({
-				name = "mcl_structures:deco_"..name,
-				decoration = structblock,
-				deco_type = "simple",
-				place_on = def.place_on,
-				spawn_by = def.spawn_by,
-				num_spawn_by = def.num_spawn_by,
-				sidelen = 80,
-				fill_ratio = def.fill_ratio,
-				noise_params = def.noise_params,
-				flags = flags,
-				biomes = def.biomes,
-				y_max = def.y_max,
-				y_min = def.y_min
-			})
-			minetest.register_node(":"..structblock, {drawtype="airlike", walkable = false, pointable = false,groups = sbgroups})
-			def.structblock = structblock
-			def.deco_id = minetest.get_decoration_id("mcl_structures:deco_"..name)
-			minetest.set_gen_notify({decoration=true}, { def.deco_id })
-			--catching of gennotify happens in mcl_mapgen_core
-		end)
+		if def.place_on then
+			minetest.register_on_mods_loaded(function() --make sure all previous decorations and biomes have been registered
+				def.deco = minetest.register_decoration({
+					name = "mcl_structures:deco_"..name,
+					decoration = structblock,
+					deco_type = "simple",
+					place_on = def.place_on,
+					spawn_by = def.spawn_by,
+					num_spawn_by = def.num_spawn_by,
+					sidelen = 80,
+					fill_ratio = def.fill_ratio,
+					noise_params = def.noise_params,
+					flags = flags,
+					biomes = def.biomes,
+					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,})
+				def.structblock = structblock
+				def.deco_id = minetest.get_decoration_id("mcl_structures:deco_"..name)
+				minetest.set_gen_notify({decoration=true}, { def.deco_id })
+				--catching of gennotify happens in mcl_mapgen_core
+
+			end)
+		end
 	end
 	mcl_structures.registered_structures[name] = def
 end

mods/MAPGEN/mcl_structures/end_city.lua

@@ -0,0 +1,135 @@
+local modname = minetest.get_current_modname()
+local S = minetest.get_translator(modname)
+local modpath = minetest.get_modpath(modname)
+
+local function spawn_shulkers(pos,def,pr)
+	local nn = minetest.find_nodes_in_area_under_air(vector.offset(pos,-def.sidelen/2,-1,-def.sidelen/2),vector.offset(pos,def.sidelen/2,def.sidelen,def.sidelen/2),{"mcl_end:purpur_block"})
+	if nn and #nn > 0 then
+		table.shuffle(nn)
+		for i = 1,pr:next(1,math.min(6,#nn)) do
+			minetest.add_entity(vector.offset(nn[i],0,0.5,0),"mobs_mc:shulker")
+		end
+	end
+	local guard = minetest.find_node_near(pos,def.sidelen,{"mcl_itemframes:item_frame"})
+	if guard then
+		minetest.add_entity(vector.offset(guard,0,-1.5,0),"mobs_mc:shulker")
+	end
+end
+
+mcl_structures.register_structure("end_shipwreck",{
+	place_on = {"mcl_end:end_stone"},
+	fill_ratio = 0.001,
+	flags = "place_center_x, place_center_z, all_floors",
+	y_offset = function(pr) return pr:next(-50,-20) end,
+	chunk_probability = 800,
+	--y_max = mcl_vars.mg_end_max,
+	--y_min = mcl_vars.mg_end_min -100,
+	biomes = { "End", "EndHighlands", "EndMidlands", "EndBarrens", "EndSmallIslands" },
+	sidelen = 32,
+	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"},
+	after_place = function(pos,def,pr)
+		local fr = minetest.find_node_near(pos,def.sidelen,{"mcl_itemframes:item_frame"})
+		if fr then
+			if mcl_itemframes then
+				mcl_itemframes.update_item_entity(fr,minetest.get_node(fr))
+			end
+		end
+		return spawn_shulkers(pos,def,pr)
+	end,
+	loot = {
+		[ "mcl_itemframes:item_frame" ] ={{
+			stacks_min = 1,
+			stacks_max = 1,
+			items = {
+				{ itemstring = "mcl_armor:elytra", weight = 100 },
+			},
+		}},
+		[ "mcl_chests:chest_small" ] ={{
+			stacks_min = 2,
+			stacks_max = 6,
+			items = {
+				{ itemstring = "mcl_mobitems:bone", weight = 20, amount_min = 4, amount_max=6 },
+				{ itemstring = "mcl_farming:beetroot_seeds", weight = 16, amount_min = 1, amount_max=10 },
+				{ itemstring = "mcl_core:gold_ingot", weight = 15, amount_min = 2, amount_max = 7 },
+				--{ itemstring = "mcl_bamboo:bamboo", weight = 15, amount_min = 1, amount_max=3 }, --FIXME BAMBOO
+				{ itemstring = "mcl_core:iron_ingot", weight = 15, amount_min = 4, amount_max = 8 },
+				{ 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_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_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, },
+				{ itemstring = "mcl_mobitems:diamond_horse_armor", weight = 1, },
+				{ itemstring = "mcl_core:apple_gold_enchanted", weight = 2, },
+			}
+		}}
+	}
+})
+
+mcl_structures.register_structure("end_boat",{
+	place_on = {"mcl_end:end_stone"},
+	fill_ratio = 0.01,
+	flags = "place_center_x, place_center_z, all_floors",
+	y_offset = function(pr) return pr:next(15,30) end,
+	chunk_probability = 900,
+	--y_max = mcl_vars.mg_end_max,
+	--y_min = mcl_vars.mg_end_min -100,
+	biomes = { "End", "EndHighlands", "EndMidlands", "EndBarrens", "EndSmallIslands" },
+	sidelen = 20,
+	filenames = {
+		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"},
+	loot = {
+		[ "mcl_chests:chest_small" ] ={{
+			stacks_min = 2,
+			stacks_max = 6,
+			items = {
+				{ itemstring = "mcl_mobitems:bone", weight = 20, amount_min = 4, amount_max=6 },
+				{ itemstring = "mcl_farming:beetroot_seeds", weight = 16, amount_min = 1, amount_max=10 },
+				{ itemstring = "mcl_core:gold_ingot", weight = 15, amount_min = 2, amount_max = 7 },
+				{ itemstring = "mcl_core:iron_ingot", weight = 15, amount_min = 4, amount_max = 8 },
+				{ 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_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, },
+				{ itemstring = "mcl_core:apple_gold_enchanted", weight = 2, },
+			}
+		}}
+	}
+})

mods/MAPGEN/mcl_structures/end_spawn.lua

@@ -0,0 +1,123 @@
+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"})
+		minetest.bulk_set_node(obby,{name="mcl_core:obsidian"})
+		minetest.bulk_set_node(air,{name="air"})
+		return true
+	end,
+})
+
+mcl_structures.register_structure("end_exit_portal",{
+	static_pos = { mcl_vars.mg_end_exit_portal_pos },
+	filenames = {
+		modpath.."/schematics/mcl_structures_end_exit_portal.mts"
+	},
+	after_place = function(pos,def,pr,blockseed)
+		if  minetest.settings:get_bool("only_peaceful_mobs", false) then
+			return
+		end
+		local p1 = vector.offset(pos,-16,-16,-16)
+		local p2 = vector.offset(pos,16,21,16)
+		minetest.emerge_area(p1,p2,function(blockpos, action, calls_remaining, param)
+			if calls_remaining > 0 then return end
+			minetest.bulk_set_node(minetest.find_nodes_in_area(p1,p2,{"mcl_portals:portal_end"}),{name="air"})
+			local obj = minetest.add_entity(vector.offset(pos,3, 11, 3), "mobs_mc:enderdragon")
+			if obj then
+				local dragon_entity = obj:get_luaentity()
+				dragon_entity._portal_pos = pos
+				if blockseed ~= -1 then
+					dragon_entity._initial = true
+				end
+			else
+				minetest.log("error", "[mcl_mapgen_core] ERROR! Ender dragon doesn't want to spawn")
+			end
+			minetest.fix_light(p1,p2)
+		end)
+	end
+})
+mcl_structures.register_structure("end_exit_portal_open",{
+	filenames = {
+		modpath.."/schematics/mcl_structures_end_exit_portal.mts"
+	},
+	after_place  = function(pos,def,pr)
+		local p1 = vector.offset(pos,-16,-16,-16)
+		local p2 = vector.offset(pos,16,16,16)
+		minetest.fix_light(p1,p2)
+	end
+})
+mcl_structures.register_structure("end_gateway_portal",{
+	filenames = {
+		modpath.."/schematics/mcl_structures_end_gateway_portal.mts"
+	},
+})
+
+local function get_tower(p,h,tbl)
+	for i = 1,h do
+		table.insert(tbl,vector.offset(p,0,i,0))
+	end
+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"})
+	table.sort(nn,function(a, b)
+		return vector.distance(pos, a) < vector.distance(pos, b)
+	end)
+	local nodes = {}
+	for i = 1,math.ceil(#nn*0.55) do
+		get_tower(nn[i],height,nodes)
+	end
+	minetest.bulk_set_node(nodes,{ name="mcl_core:obsidian"} )
+	return vector.offset(pos,0,height,0)
+end
+
+function make_cage(pos,width)
+	local nodes = {}
+	local nodes2 = {}
+	local r = math.max(1,math.floor(width/2) - 2)
+	for x=-r,r do for y = 0,width do for z = -r,r do
+		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
+	if xpanes then
+		minetest.bulk_set_node(nodes,{ name="xpanes:bar_flat"} )
+		for _,p in pairs(nodes) do
+			xpanes.update_pane(p)
+		end
+	end
+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)) ))
+	end
+	return rt
+end
+
+mcl_structures.register_structure("end_spike",{
+	static_pos =get_points_on_circle(vector.offset(mcl_vars.mg_end_exit_portal_pos,0,-20,0),43,10),
+	place_func = function(pos,def,pr)
+		local d = pr:next(6,12)
+		local h = d * pr:next(4,6)
+		local p1 = vector.add(pos,-d/2,0,-d/2)
+		local p2 = vector.add(pos,d/2,h+d,d/2)
+		minetest.emerge_area(p1, p2, function(blockpos, action, calls_remaining, param)
+			if calls_remaining ~= 0 then return end
+			local s = make_endspike(pos,d,h)
+			minetest.set_node(vector.offset(s,0,1,0),{name="mcl_core:bedrock"})
+			minetest.add_entity(vector.offset(s,0,2,0),"mcl_end:crystal")
+			if pr:next(1,3) == 1 then
+				make_cage(vector.offset(s,0,1,0),d)
+			end
+		end)
+		return true
+	end,
+})

mods/MAPGEN/mcl_structures/init.lua

@@ -81,33 +81,11 @@ function mcl_structures.call_struct(pos, struct_style, rotation, pr)
 	if not rotation then
 		rotation = "random"
 	end
-	if struct_style == "end_exit_portal" then
-		return mcl_structures.generate_end_exit_portal(pos, rotation)
-	elseif struct_style == "end_exit_portal_open" then
-		return mcl_structures.generate_end_exit_portal_open(pos, rotation)
-	elseif struct_style == "end_gateway_portal" then
-		return mcl_structures.generate_end_gateway_portal(pos, rotation)
-	elseif struct_style == "end_portal_shrine" then
+	if struct_style == "end_portal_shrine" then
 		return mcl_structures.generate_end_portal_shrine(pos, rotation, pr)
 	end
 end
 
-
-function mcl_structures.generate_end_exit_portal(pos, rot)
-	local path = modpath.."/schematics/mcl_structures_end_exit_portal.mts"
-	return mcl_structures.place_schematic(pos, path, rot or "0", {["mcl_portals:portal_end"] = "air"}, true)
-end
-
-function mcl_structures.generate_end_exit_portal_open(pos, rot)
-	local path = modpath.."/schematics/mcl_structures_end_exit_portal.mts"
-	return mcl_structures.place_schematic(pos, path, rot or "0", nil, true)
-end
-
-function mcl_structures.generate_end_gateway_portal(pos, rot)
-	local path = modpath.."/schematics/mcl_structures_end_gateway_portal.mts"
-	return mcl_structures.place_schematic(pos, path, rot or "0", nil, true)
-end
-
 local function shrine_placement_callback(p1, p2, size, rotation, pr)
 	-- Find and setup spawner with silverfish
 	local spawners = minetest.find_nodes_in_area(p1, p2, "mcl_mobspawners:spawner")
@@ -247,6 +225,8 @@ dofile(modpath.."/woodland_mansion.lua")
 dofile(modpath.."/ruined_portal.lua")
 dofile(modpath.."/geode.lua")
 dofile(modpath.."/pillager_outpost.lua")
+dofile(modpath.."/end_spawn.lua")
+dofile(modpath.."/end_city.lua")
 
 
 mcl_structures.register_structure("desert_well",{
@@ -310,7 +290,7 @@ mcl_structures.register_structure("ice_spike_large",{
 
 -- Debug command
 minetest.register_chatcommand("spawnstruct", {
-	params = "end_exit_portal | end_exit_portal_open | end_gateway_portal | end_portal_shrine | nether_portal | dungeon",
+	params = "end_portal_shrine | dungeon",
 	description = S("Generate a pre-defined structure near your position."),
 	privs = {debug = true},
 	func = function(name, param)
@@ -324,18 +304,10 @@ minetest.register_chatcommand("spawnstruct", {
 		local pr = PseudoRandom(pos.x+pos.y+pos.z)
 		local errord = false
 		local message = S("Structure placed.")
-		if param == "end_exit_portal" then
-			mcl_structures.generate_end_exit_portal(pos, rot, pr)
-		elseif param == "end_exit_portal_open" then
-			mcl_structures.generate_end_exit_portal_open(pos, rot, pr)
-		elseif param == "end_gateway_portal" then
-			mcl_structures.generate_end_gateway_portal(pos, rot, pr)
-		elseif param == "end_portal_shrine" then
+		if param == "end_portal_shrine" then
 			mcl_structures.generate_end_portal_shrine(pos, rot, pr)
 		elseif param == "dungeon" and mcl_dungeons and mcl_dungeons.spawn_dungeon then
 			mcl_dungeons.spawn_dungeon(pos, rot, pr)
-		elseif param == "nether_portal" and mcl_portals and mcl_portals.spawn_nether_portal then
-			mcl_portals.spawn_nether_portal(pos, rot, pr, name)
 		elseif param == "" then
 			message = S("Error: No structure type given. Please use “/spawnstruct <type>”.")
 			errord = true

mods/MAPGEN/mcl_structures/woodland_mansion.lua

@@ -18,6 +18,7 @@ mcl_structures.register_structure("woodland_cabin",{
 		modpath.."/schematics/mcl_structures_woodland_cabin.mts",
 		modpath.."/schematics/mcl_structures_woodland_outpost.mts",
 	},
+	construct_nodes = {"mcl_barrels:barrel_closed"},
 	after_place = function(p,def,pr)
 		local spawnon = {"mcl_deepslate:deepslate","mcl_core:birchwood","mcl_wool:red_carpet","mcl_wool:brown_carpet"}
 		local p1=vector.offset(p,-def.sidelen,-1,-def.sidelen)

settingtypes.txt

@@ -156,6 +156,9 @@ mcl_generate_fallen_logs (Generate fallen logs) bool false
 # But creating new flat worlds after changing this setting should be safe.
 mcl_superflat_classic (Classic superflat map generation) bool false
 
+# If disabled, no deepslate will be generated.
+mcl_generate_deepslate (Generate Deepslate) bool true
+
 # If disabled, no ores will be generated.
 mcl_generate_ores (Generate Ores) bool true
 
@@ -194,3 +197,9 @@ mcl_item_id_debug (Item ID Debug) bool false
 
 #Log mob spawning and despawning events
 mcl_logging_mobs_spawn (Log Mob Spawning) bool true
+
+# If enabled mapgen timings will be dumped to log
+mcl_logging_mapgen (Chunk generation logging) bool false
+
+# If enabled generated structures will be logged
+mcl_logging_structures (Structure generation logging) bool true