Merge pull request 'Nether biomes' (#2328) from nether_biomes into master

Reviewed-on: https://git.minetest.land/MineClone2/MineClone2/pulls/2328
Reviewed-by: MysticTempest <mystictempest@noreply.git.minetest.land>

mods/ENTITIES/mcl_mobs/spawning.lua

@@ -189,6 +189,9 @@ local list_of_all_biomes = {
 	"MesaBryce",
 	"JungleEdge",
 	"SavannaM",
+	"Nether",
+	"WarpedForest",
+	"SoulsandValley"
 }
 
 -- count how many mobs are in an area

mods/ENTITIES/mobs_mc/enderman.lua

@@ -766,15 +766,32 @@ mcl_mobs:spawn_specific(
 "nether",
 "ground",
 {
-"Nether"
+"Nether",
+"SoulsandValley",
 },
 0,
-7,
+minetest.LIGHT_MAX+1,
 30,
 27500,
 4,
 mcl_vars.mg_nether_min,
 mcl_vars.mg_nether_max)
 
+-- Warped Forest spawn (common)
+mcl_mobs:spawn_specific(
+"mobs_mc:enderman",
+"nether",
+"ground",
+{
+"WarpedForest"
+},
+0,
+minetest.LIGHT_MAX+1,
+30,
+5000,
+4,
+mcl_vars.mg_nether_min,
+mcl_vars.mg_nether_max)
+
 -- spawn eggs
 mcl_mobs:register_egg("mobs_mc:enderman", S("Enderman"), "mobs_mc_spawn_icon_enderman.png", 0)

mods/ENTITIES/mobs_mc/ghast.lua

@@ -81,12 +81,14 @@ mcl_mobs:spawn_specific(
 "nether",
 "ground",
 {
-"Nether"
+"Nether",
+"SoulsandValley",
+"BasaltDelta",
 },
 0,
-minetest.LIGHT_MAX+1,
+7,
 30,
-18000,
+72000,
 2,
 mcl_vars.mg_nether_min,
 mcl_vars.mg_nether_max)

mods/ENTITIES/mobs_mc/skeleton+stray.lua

@@ -302,10 +302,10 @@ mcl_mobs:spawn_specific(
 "nether",
 "ground",
 {
-"Nether"
+"SoulsandValley",
 },
 0,
-7,
+minetest.LIGHT_MAX+1,
 30,
 10000,
 3,

mods/ENTITIES/mobs_mc/slime+magma_cube.lua

@@ -402,7 +402,8 @@ mcl_mobs:spawn_specific(
 "nether",
 "ground",
 {
-"Nether"
+"Nether",
+"BasaltDelta",
 },
 0,
 minetest.LIGHT_MAX+1,
@@ -418,7 +419,8 @@ mcl_mobs:spawn_specific(
 "nether",
 "ground",
 {
-"Nether"
+"Nether",
+"BasaltDelta",
 },
 0,
 minetest.LIGHT_MAX+1,
@@ -433,7 +435,8 @@ mcl_mobs:spawn_specific(
 "nether",
 "ground",
 {
-"Nether"
+"Nether",
+"BasaltDelta",
 },
 0,
 minetest.LIGHT_MAX+1,

mods/ENTITIES/mobs_mc/zombiepig.lua

@@ -118,7 +118,8 @@ mcl_mobs:spawn_specific(
 "nether",
 "ground",
 {
-"Nether"
+"Nether",
+"CrimsonForest",
 },
 0,
 minetest.LIGHT_MAX+1,

mods/ENVIRONMENT/mcl_weather/skycolor.lua

@@ -146,8 +146,25 @@ mcl_weather.skycolor = {
 				player:set_stars({visible = false})
 				mcl_weather.skycolor.override_day_night_ratio(player, 0.5)
 			elseif dim == "nether" then
-				player:set_sky({ type = "plain",
-					base_color = "#300808",
+				local nether_sky = {
+					Nether = "#300808",
+					BasaltDelta = "#685F70",
+					SoulsandValley = "#1B4745",
+					CrimsonForest = "#330303",
+					WarpedForest = "#1A051A"
+				}
+				local biometint = nether_sky[minetest.get_biome_name(minetest.get_biome_data(player:get_pos()).biome)]
+
+				player:set_sky({
+					type = "regular",
+					sky_color = {
+						day_sky = "#300808",
+						day_horizon = biometint,
+						dawn_sky = "#300808",
+						dawn_horizon = biometint,
+						night_sky = "#300808",
+						night_horizon = biometint,
+					},
 					clouds = false,
 				})
 				player:set_sun({visible = false , sunrise_visible = false})

mods/ITEMS/mcl_blackstone/init.lua

@@ -323,36 +323,7 @@ for s=1, #specialstones do
 end
 
 if minetest.settings:get_bool("mcl_generate_ores", true) then
-	minetest.register_ore({
-		ore_type       = "scatter",
-		ore            = "mcl_blackstone:blackstone_gilded",
-		wherein        = "mcl_blackstone:blackstone",
-		clust_scarcity = 4775,
-		clust_num_ores = 2,
-		clust_size     = 2,
-		y_min          = mcl_vars.mg_nether_min,
-		y_max          = mcl_vars.mg_nether_max,
-	})
-	minetest.register_ore({
-		ore_type       = "scatter",
-		ore            = "mcl_blackstone:nether_gold",
-		wherein        = "mcl_nether:netherrack",
-		clust_scarcity = 830,
-		clust_num_ores = 5,
-		clust_size     = 3,
-		y_min          = mcl_vars.mg_nether_min,
-		y_max          = mcl_vars.mg_nether_max,
-	})
-	minetest.register_ore({
-		ore_type       = "scatter",
-		ore            = "mcl_blackstone:nether_gold",
-		wherein        = "mcl_nether:netherrack",
-		clust_scarcity = 1660,
-		clust_num_ores = 4,
-		clust_size     = 2,
-		y_min          = mcl_vars.mg_nether_min,
-		y_max          = mcl_vars.mg_nether_max,
-	})
+
 end
 --]]
 --soul torch

mods/ITEMS/mcl_crimson/init.lua

@@ -0,0 +1,485 @@
+local modname = minetest.get_current_modname()
+local S = minetest.get_translator(modname)
+local modpath = minetest.get_modpath(modname)
+-- Warped and Crimson fungus
+-- by debiankaios
+-- adapted for mcl2 by cora
+
+local function generate_warped_tree(pos)
+	minetest.place_schematic(pos,modpath.."/schematics/warped_fungus_1.mts","random",nil,false,"place_center_x,place_center_z")
+end
+
+function generate_crimson_tree(pos)
+	minetest.place_schematic(pos,modpath.."/schematics/crimson_fungus_1.mts","random",nil,false,"place_center_x,place_center_z")
+end
+
+function grow_twisting_vines(pos, moreontop)
+	local y = pos.y + 1
+		while not (moreontop == 0) do
+			if minetest.get_node({x = pos.x, y = y, z = pos.z}).name == "air" then
+				minetest.set_node({x = pos.x, y = y, z = pos.z}, {name="mcl_crimson:twisting_vines"})
+				moreontop = moreontop - 1
+				y = y + 1
+			elseif minetest.get_node({x = pos.x, y = y, z = pos.z}).name == "mcl_crimson:twisting_vines" then
+				y = y + 1
+			else
+				moreontop = 0
+			end
+	end
+end
+
+minetest.register_node("mcl_crimson:warped_fungus", {
+	description = S("Warped Fungus Mushroom"),
+	drawtype = "plantlike",
+	tiles = { "farming_warped_fungus.png" },
+	inventory_image = "farming_warped_fungus.png",
+	wield_image = "farming_warped_fungus.png",
+	sunlight_propagates = true,
+	paramtype = "light",
+	walkable = false,
+	groups = {dig_immediate=3,mushroom=1,attached_node=1,dig_by_water=1,destroy_by_lava_flow=1,dig_by_piston=1,enderman_takable=1,deco_block=1},
+	light_source = 1,
+	selection_box = {
+		type = "fixed",
+		fixed = { -3/16, -0.5, -3/16, 3/16, -2/16, 3/16 },
+	},
+	node_placement_prediction = "",
+	on_rightclick = function(pos, node, pointed_thing, player, itemstack)
+		if pointed_thing:get_wielded_item():get_name() == "mcl_dye:white" then
+			local nodepos = minetest.get_node({x = pos.x, y = pos.y - 1, z = pos.z})
+			if nodepos.name == "mcl_crimson:warped_nylium" or nodepos.name == "mcl_nether:netherrack" then
+				local random = math.random(1, 5)
+				if random == 1 then
+					generate_warped_tree(pos)
+				end
+			end
+		end
+	end,
+	_mcl_blast_resistance = 0,
+})
+
+minetest.register_node("mcl_crimson:twisting_vines", {
+	description = S("Twisting Vines"),
+	drawtype = "plantlike",
+	tiles = { "twisting_vines_plant.png" },
+	inventory_image = "twisting_vines.png",
+	sunlight_propagates = true,
+	paramtype = "light",
+	walkable = false,
+	climbable = true,
+	buildable_to = true,
+	groups = {dig_immediate=3,vines=1,dig_by_water=1,destroy_by_lava_flow=1,dig_by_piston=1,deco_block=1, shearsy = 1},
+	selection_box = {
+		type = "fixed",
+		fixed = { -3/16, -0.5, -3/16, 3/16, 0.5, 3/16 },
+	},
+	node_placement_prediction = "",
+	on_rightclick = function(pos, node, pointed_thing, itemstack)
+		if pointed_thing:get_wielded_item():get_name() == "mcl_crimson:twisting_vines" then
+			itemstack:take_item()
+			grow_twisting_vines(pos, 1)
+		elseif pointed_thing:get_wielded_item():get_name() == "mcl_dye:white" then
+			itemstack:take_item()
+			grow_twisting_vines(pos, math.random(1, 3))
+		end
+	end,
+	drop = {
+		max_items = 1,
+		items = {
+			{items = {"mcl_crimson:twisting_vines"}, rarity = 3},
+		},
+	},
+	_mcl_shears_drop = true,
+	_mcl_silk_touch_drop = true,
+	_mcl_fortune_drop = {
+		items = {
+			{items = {"mcl_crimson:twisting_vines"}, rarity = 3},
+		},
+		items = {
+			{items = {"mcl_crimson:twisting_vines"}, rarity = 1.8181818181818181},
+		},
+		"mcl_crimson:twisting_vines",
+		"mcl_crimson:twisting_vines",
+	},
+	_mcl_blast_resistance = 0,
+})
+
+minetest.register_node("mcl_crimson:nether_sprouts", {
+	description = S("Nether Sprouts"),
+	drawtype = "plantlike",
+	tiles = { "nether_sprouts.png" },
+	inventory_image = "nether_sprouts.png",
+	sunlight_propagates = true,
+	paramtype = "light",
+	walkable = false,
+	buildable_to = true,
+	groups = {dig_immediate=3,vines=1,dig_by_water=1,destroy_by_lava_flow=1,dig_by_piston=1,deco_block=1, shearsy = 1},
+	selection_box = {
+		type = "fixed",
+		fixed = { -4/16, -0.5, -4/16, 4/16, 0, 4/16 },
+	},
+	node_placement_prediction = "",
+	drop = "",
+	_mcl_shears_drop = true,
+	_mcl_silk_touch_drop = false,
+	_mcl_blast_resistance = 0,
+})
+
+minetest.register_node("mcl_crimson:warped_roots", {
+	description = S("Warped Roots"),
+	drawtype = "plantlike",
+	tiles = { "warped_roots.png" },
+	inventory_image = "warped_roots.png",
+	sunlight_propagates = true,
+	paramtype = "light",
+	walkable = false,
+	buildable_to = true,
+	groups = {dig_immediate=3,vines=1,dig_by_water=1,destroy_by_lava_flow=1,dig_by_piston=1,deco_block=1, shearsy = 1},
+	selection_box = {
+		type = "fixed",
+		fixed = { -6/16, -0.5, -6/16, 6/16, -4/16, 6/16 },
+	},
+	node_placement_prediction = "",
+	_mcl_silk_touch_drop = false,
+	_mcl_blast_resistance = 0,
+})
+
+minetest.register_node("mcl_crimson:warped_wart_block", {
+	description = S("Warped Wart Block"),
+	tiles = {"warped_wart_block.png"},
+	groups = {handy = 1, hoe = 7, swordy = 1, deco_block = 1},
+	_mcl_hardness = 2,
+})
+
+minetest.register_node("mcl_crimson:shroomlight", {
+	description = S("Shroomlight"),
+	tiles = {"shroomlight.png"},
+	groups = {handy = 1, hoe = 7, swordy = 1, leafdecay = 5, leaves = 1, deco_block = 1},
+	light_source = minetest.LIGHT_MAX,
+	_mcl_hardness = 2,
+})
+
+minetest.register_node("mcl_crimson:warped_hyphae", {
+	description = S("Warped Hyphae"),
+	_doc_items_longdesc = S("The stem of a warped hyphae"),
+	_doc_items_hidden = false,
+	tiles = {
+		"warped_hyphae.png",
+		"warped_hyphae.png",
+		"warped_hyphae_side.png",
+		"warped_hyphae_side.png",
+		"warped_hyphae_side.png",
+		"warped_hyphae_side.png",
+	},
+	paramtype2 = "facedir",
+	on_place = mcl_util.rotate_axis,
+	groups = {handy = 1, axey = 1, tree = 1, building_block = 1, material_wood = 1},
+	sounds = mcl_sounds.node_sound_wood_defaults(),
+	_mcl_blast_resistance = 2,
+	_mcl_hardness = 2,
+	_mcl_stripped_variant = "mcl_crimson:stripped_warped_hyphae",
+})
+
+minetest.register_node("mcl_crimson:warped_nylium", {
+	description = S("Warped Nylium"),
+	tiles = {
+		"warped_nylium.png",
+		"mcl_nether_netherrack.png",
+		"mcl_nether_netherrack.png^warped_nylium_side.png",
+		"mcl_nether_netherrack.png^warped_nylium_side.png",
+		"mcl_nether_netherrack.png^warped_nylium_side.png",
+		"mcl_nether_netherrack.png^warped_nylium_side.png",
+	},
+	paramtype2 = "facedir",
+	is_ground_content = true,
+	drop = "mcl_nether:netherrack",
+	groups = {pickaxey=1, building_block=1, material_stone=1},
+	_mcl_hardness = 0.4,
+	_mcl_blast_resistance = 0.4,
+	_mcl_silk_touch_drop = true,
+})
+
+--Stem bark, stripped stem and bark
+
+minetest.register_node("mcl_crimson:warped_hyphae_bark", {
+	description = S("Warped Hyphae Bark"),
+	_doc_items_longdesc = S("This is a decorative block surrounded by the bark of an hyphae."),
+	tiles = {"warped_hyphae_side.png"},
+	paramtype2 = "facedir",
+	on_place = mcl_util.rotate_axis,
+	groups = {handy = 1, axey = 1, bark = 1, building_block = 1, material_wood = 1},
+	sounds = mcl_sounds.node_sound_wood_defaults(),
+	is_ground_content = false,
+	_mcl_blast_resistance = 2,
+	_mcl_hardness = 2,
+	_mcl_stripped_variant = "mcl_crimson:stripped_warped_hyphae_bark",
+})
+
+minetest.register_craft({
+	output = "mcl_crimson:warped_hyphae_bark 3",
+	recipe = {
+		{ "mcl_crimson:warped_hyphae", "mcl_crimson:warped_hyphae" },
+		{ "mcl_crimson:warped_hyphae", "mcl_crimson:warped_hyphae" },
+	},
+})
+
+minetest.register_node("mcl_crimson:stripped_warped_hyphae", {
+	description = S("Stripped warped hyphae"),
+	_doc_items_longdesc = S("The stripped hyphae of a warped fungus"),
+	_doc_items_hidden = false,
+	tiles = {"warped_stem_stripped_top.png", "warped_stem_stripped_top.png", "warped_stem_stripped_side.png"},
+	paramtype2 = "facedir",
+	on_place = mcl_util.rotate_axis,
+	groups = {handy = 1, axey = 1, tree = 1, building_block = 1, material_wood = 1},
+	sounds = mcl_sounds.node_sound_wood_defaults(),
+	_mcl_blast_resistance = 2,
+	_mcl_hardness = 2,
+})
+
+minetest.register_node("mcl_crimson:stripped_warped_hyphae_bark", {
+	description = S("Stripped warped hyphae bark"),
+	_doc_items_longdesc = S("The stripped hyphae bark of a warped fungus"),
+	tiles = {"crimson_stem_stripped_side.png"},
+	paramtype2 = "facedir",
+	on_place = mcl_util.rotate_axis,
+	groups = {handy = 1, axey = 1, bark = 1, building_block = 1, material_wood = 1},
+	sounds = mcl_sounds.node_sound_wood_defaults(),
+	is_ground_content = false,
+	_mcl_blast_resistance = 2,
+	_mcl_hardness = 2,
+})
+
+minetest.register_craft({
+	output = "mcl_crimson:stripped_warped_hyphae_bark 3",
+	recipe = {
+		{ "mcl_crimson:stripped_warped_hyphae", "mcl_crimson:stripped_warped_hyphae" },
+		{ "mcl_crimson:stripped_warped_hyphae", "mcl_crimson:stripped_warped_hyphae" },
+	},
+})
+
+minetest.register_node("mcl_crimson:warped_hyphae_wood", {
+	description = S("Warped Hyphae Wood"),
+	tiles = {"warped_hyphae_wood.png"},
+	groups = {handy = 5,axey = 1, flammable = 3, wood=1,building_block = 1, material_wood = 1, fire_encouragement = 5, fire_flammability = 20},
+	paramtype2 = "facedir",
+	_mcl_hardness = 2,
+})
+
+mcl_stairs.register_stair_and_slab_simple("warped_hyphae_wood", "mcl_crimson:warped_hyphae_wood", S("Warped Stair"), S("Warped Slab"), S("Double Warped Slab"))
+
+minetest.register_craft({
+	output = "mcl_crimson:warped_hyphae_wood 4",
+	recipe = {
+		{"mcl_crimson:warped_hyphae"},
+	},
+})
+
+minetest.register_craft({
+	output = "mcl_crimson:warped_nylium 2",
+	recipe = {
+		{"mcl_crimson:warped_wart_block"},
+		{"mcl_nether:netherrack"},
+	},
+})
+
+minetest.register_abm({
+	label = "mcl_crimson:warped_fungus",
+	nodenames = {"mcl_crimson:warped_fungus"},
+	interval = 11,
+	chance = 128,
+	action = function(pos)
+		local nodepos = minetest.get_node(vector.offset(pos, 0, -1, 0))
+		if nodepos.name == "mcl_crimson:warped_nylium" or nodepos.name == "mcl_nether:netherrack" then
+			if pos.y < -28400 then
+				generate_warped_tree(pos)
+			end
+		end
+	end
+})
+
+minetest.register_node("mcl_crimson:crimson_fungus", {
+	description = S("Crimson Fungus Mushroom"),
+	drawtype = "plantlike",
+	tiles = { "farming_crimson_fungus.png" },
+	inventory_image = "farming_crimson_fungus.png",
+	wield_image = "farming_crimson_fungus.png",
+	sunlight_propagates = true,
+	paramtype = "light",
+	walkable = false,
+	groups = {dig_immediate=3,mushroom=1,attached_node=1,dig_by_water=1,destroy_by_lava_flow=1,dig_by_piston=1,enderman_takable=1,deco_block=1},
+	light_source = 1,
+	selection_box = {
+		type = "fixed",
+		fixed = { -3/16, -0.5, -3/16, 3/16, -2/16, 3/16 },
+	},
+	node_placement_prediction = "",
+	on_rightclick = function(pos, node, pointed_thing, player)
+		if pointed_thing:get_wielded_item():get_name() == "mcl_dye:white" then
+			local nodepos = minetest.get_node(vector.offset(pos, 0, -1, 0))
+			if nodepos.name == "mcl_crimson:crimson_nylium" or nodepos.name == "mcl_nether:netherrack" then
+				local random = math.random(1, 5)
+				if random == 1 then
+					generate_crimson_tree(pos)
+				end
+			end
+		end
+	end,
+	_mcl_blast_resistance = 0,
+})
+
+minetest.register_node("mcl_crimson:crimson_roots", {
+	description = S("Crimson Roots"),
+	drawtype = "plantlike",
+	tiles = { "crimson_roots.png" },
+	inventory_image = "crimson_roots.png",
+	sunlight_propagates = true,
+	paramtype = "light",
+	walkable = false,
+	buildable_to = true,
+	groups = {dig_immediate=3,vines=1,dig_by_water=1,destroy_by_lava_flow=1,dig_by_piston=1,deco_block=1, shearsy = 1},
+	selection_box = {
+		type = "fixed",
+		fixed = { -6/16, -0.5, -6/16, 6/16, -4/16, 6/16 },
+	},
+	node_placement_prediction = "",
+	_mcl_silk_touch_drop = false,
+	_mcl_blast_resistance = 0,
+})
+
+minetest.register_node("mcl_crimson:crimson_hyphae", {
+	description = S("Crimson Hyphae"),
+	_doc_items_longdesc = S("The stem of a crimson hyphae"),
+	_doc_items_hidden = false,
+	tiles = {
+		"crimson_hyphae.png",
+		"crimson_hyphae.png",
+		"crimson_hyphae_side.png",
+		"crimson_hyphae_side.png",
+		"crimson_hyphae_side.png",
+		"crimson_hyphae_side.png",
+	},
+	paramtype2 = "facedir",
+	on_place = mcl_util.rotate_axis,
+	groups = {handy = 1, axey = 1, tree = 1, building_block = 1, material_wood = 1},
+	sounds = mcl_sounds.node_sound_wood_defaults(),
+	_mcl_blast_resistance = 2,
+	_mcl_hardness = 2,
+	_mcl_stripped_variant = "mcl_crimson:stripped_crimson_hyphae",
+})
+
+--Stem bark, stripped stem and bark
+
+minetest.register_node("mcl_crimson:crimson_hyphae_bark", {
+	description = S("Crimson Hyphae Bark"),
+	_doc_items_longdesc = S("This is a decorative block surrounded by the bark of an hyphae."),
+	tiles = {"crimson_hyphae_side.png"},
+	paramtype2 = "facedir",
+	on_place = mcl_util.rotate_axis,
+	groups = {handy = 1, axey = 1, bark = 1, building_block = 1, material_wood = 1},
+	sounds = mcl_sounds.node_sound_wood_defaults(),
+	is_ground_content = false,
+	_mcl_blast_resistance = 2,
+	_mcl_hardness = 2,
+	_mcl_stripped_variant = "mcl_crimson:stripped_crimson_hyphae_bark",
+})
+
+minetest.register_craft({
+	output = "mcl_crimson:crimson_hyphae_bark 3",
+	recipe = {
+		{ "mcl_crimson:crimson_hyphae", "mcl_crimson:crimson_hyphae" },
+		{ "mcl_crimson:crimson_hyphae", "mcl_crimson:crimson_hyphae" },
+	},
+})
+
+minetest.register_node("mcl_crimson:stripped_crimson_hyphae", {
+	description = S("Stripped Crimson Hyphae"),
+	_doc_items_longdesc = S("The stripped stem of a crimson hyphae"),
+	_doc_items_hidden = false,
+	tiles = {"crimson_stem_stripped_top.png", "crimson_stem_stripped_top.png", "crimson_stem_stripped_side.png"},
+	paramtype2 = "facedir",
+	on_place = mcl_util.rotate_axis,
+	groups = {handy = 1, axey = 1, tree = 1, building_block = 1, material_wood = 1},
+	sounds = mcl_sounds.node_sound_wood_defaults(),
+	_mcl_blast_resistance = 2,
+	_mcl_hardness = 2,
+})
+
+minetest.register_node("mcl_crimson:stripped_crimson_hyphae_bark", {
+	description =	S("Stripped Crimson Hyphae Bark"),
+	_doc_items_longdesc = S("The stripped wood of a crimson hyphae"),
+	tiles = {"crimson_stem_stripped_side.png"},
+	paramtype2 = "facedir",
+	on_place = mcl_util.rotate_axis,
+	groups = {handy = 1, axey = 1, bark = 1, building_block = 1, material_wood = 1},
+	sounds = mcl_sounds.node_sound_wood_defaults(),
+	is_ground_content = false,
+	_mcl_blast_resistance = 2,
+	_mcl_hardness = 2,
+})
+
+minetest.register_craft({
+	output = "mcl_crimson:stripped_crimson_hyphae_bark 3",
+	recipe = {
+		{ "mcl_crimson:stripped_crimson_hyphae", "mcl_crimson:stripped_crimson_hyphae" },
+		{ "mcl_crimson:stripped_crimson_hyphae", "mcl_crimson:stripped_crimson_hyphae" },
+	},
+})
+
+minetest.register_node("mcl_crimson:crimson_hyphae_wood", {
+	description = S("Crimson Hyphae Wood"),
+	tiles = {"crimson_hyphae_wood.png"},
+	groups = {handy = 5, axey = 1, wood = 1, building_block = 1, material_wood = 1},
+	paramtype2 = "facedir",
+	_mcl_hardness = 2,
+})
+
+minetest.register_node("mcl_crimson:crimson_nylium", {
+	description = S("Crimson Nylium"),
+	tiles = {
+		"crimson_nylium.png",
+		"mcl_nether_netherrack.png",
+		"mcl_nether_netherrack.png^crimson_nylium_side.png",
+		"mcl_nether_netherrack.png^crimson_nylium_side.png",
+		"mcl_nether_netherrack.png^crimson_nylium_side.png",
+		"mcl_nether_netherrack.png^crimson_nylium_side.png",
+	},
+	groups = {pickaxey = 1, building_block = 1, material_stone = 1},
+	paramtype2 = "facedir",
+	is_ground_content = true,
+	drop = "mcl_nether:netherrack",
+	_mcl_hardness = 0.4,
+	_mcl_blast_resistance = 0.4,
+	_mcl_silk_touch_drop = true,
+})
+
+minetest.register_craft({
+	output = "mcl_crimson:crimson_hyphae_wood 4",
+	recipe = {
+		{"mcl_crimson:crimson_hyphae"},
+	},
+})
+
+minetest.register_craft({
+	output = "mcl_crimson:crimson_nylium 2",
+	recipe = {
+		{"mcl_nether:nether_wart"},
+		{"mcl_nether:netherrack"},
+	},
+})
+
+mcl_stairs.register_stair_and_slab_simple("crimson_hyphae_wood", "mcl_crimson:crimson_hyphae_wood", "Crimson Stair", "Crimson Slab", "Double Crimson Slab")
+
+minetest.register_abm({
+	label = "mcl_crimson:crimson_fungus",
+	nodenames = {"mcl_crimson:crimson_fungus"},
+	interval = 11,
+	chance = 128,
+	action = function(pos)
+		local nodepos = minetest.get_node(vector.offset(pos, 0, -1, 0))
+		if nodepos.name == "mcl_crimson:crimson_nylium" or nodepos.name == "mcl_nether:netherrack" then
+			if pos.y < -28400 then
+				generate_crimson_tree(pos)
+			end
+		end
+	end
+})

mods/ITEMS/mcl_crimson/locale/mcl_crimson.de.tr

@@ -0,0 +1,24 @@
+# textdomain: mcl_crimson
+
+Warped Fungus Mushroom=Wirrpilz
+Twisting Vines=Zwirbelranken
+Nether Sprouts=Nethersprossen
+Warped Roots=Wirrwurzeln
+Warped Wart Block=Wirrwarzenblock
+Shroomlight=Pilzlicht
+Warped Hyphae=Wirrhyphe
+Warped Nylium=Wirr-Nezel
+Warped Checknode - only to check!=Wirr Checkblock - Nur zum checken!
+Warped Hyphae Wood=Wirrhyphen Holz
+Warped Stair=Wirrtreppe
+Warped Slab=Wirrstufe
+Double Warped Slab=Doppelte Wirrstufe
+Crimson Fungus Mushroom=Karmesinpilz
+Crimson Roots=Karmesinwurzeln
+Crimson Hyphae=Karmesinhyphe
+Crimson Hyphae Wood=Karmesinhyphenholz
+Crimson Stair=Karmesintreppe
+Crimson Slab=Karmesinstufe
+Double Crimson Slab=Doppelte Karmesinstufe
+Crimson Nylium=Karmesin-Nezel
+Crimson Checknode - only to check!=Karmesin Checkblock - Nur zum checken!

mods/ITEMS/mcl_crimson/locale/mcl_crimson.fr.tr

@@ -0,0 +1,23 @@
+# textdomain: mcl_crimson
+
+Warped Fungus Mushroom=Champignon tordu
+Twisting Vines=Liane tordue
+Nether Sprouts=Racines du nether
+Warped Roots=Racines tordues
+Warped Wart Block=Bloc de verrues tordu
+Shroomlight=Champilampe
+Warped Hyphae=Tige tordue
+Warped Nylium=Nylium tordu
+Warped Checknode - only to check!=Bloc de vérification tordu - seulement pour vérifier !
+Warped Hyphae Wood=Planches tordues
+Warped Stair=Escalier tordu
+Warped Slab=Dalle tordue
+Crimson Fungus Mushroom=Champignon écarlate
+Crimson Roots=Racines écarlates
+Crimson Hyphae=Tige écarlate
+Crimson Hyphae Wood=Planches écarlates
+Crimson Stair=Escalier écarlate
+Crimson Slab=Dalle écarlate
+Double Crimson Slab=Dalle double écarlate
+Crimson Nylium=Nylium écarlate
+Crimson Checknode - only to check!=Bloc de vérification écarlate - seulement pour vérifier !

mods/ITEMS/mcl_crimson/locale/template.txt

@@ -0,0 +1,23 @@
+# textdomain: mcl_crimson
+
+Warped Fungus Mushroom=
+Twisting Vines=
+Nether Sprouts=
+Warped Roots=
+Warped Wart Block=
+Shroomlight=
+Warped Hyphae=
+Warped Nylium=
+Warped Checknode - only to check!=
+Warped Hyphae Wood=
+Warped Stair=
+Warped Slab=
+Crimson Fungus Mushroom=
+Crimson Roots=
+Crimson Hyphae=
+Crimson Hyphae Wood=
+Crimson Stair=
+Crimson Slab=
+Double Crimson Slab=
+Crimson Nylium=
+Crimson Checknode - only to check!=

mods/ITEMS/mcl_crimson/mod.conf

@@ -0,0 +1,4 @@
+name = mcl_crimson
+author = debiankaios
+depends = mcl_stairs, mobs_mc, mcl_util
+

mods/MAPGEN/mcl_biomes/init.lua

@@ -9,6 +9,8 @@ local generate_fallen_logs = minetest.settings:get_bool("mcl_generate_fallen_log
 local mod_mcl_structures = minetest.get_modpath("mcl_structures")
 local mod_mcl_core = minetest.get_modpath("mcl_core")
 local mod_mcl_mushrooms = minetest.get_modpath("mcl_mushrooms")
+local mod_mcl_crimson = minetest.get_modpath("mcl_crimson")
+local mod_mcl_blackstone = minetest.get_modpath("mcl_blackstone")
 
 -- 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"
@@ -1490,8 +1492,7 @@ local function register_dimension_biomes()
 		node_river_water = "air",
 		node_cave_liquid = "air",
 		y_min = mcl_vars.mg_nether_min,
-		-- FIXME: For some reason the Nether stops generating early if this constant is not added.
-		-- Figure out why.
+
 		y_max = mcl_vars.mg_nether_max + 80,
 		heat_point = 100,
 		humidity_point = 0,
@@ -1499,6 +1500,175 @@ local function register_dimension_biomes()
 		_mcl_palette_index = 17,
 	})
 
+	minetest.register_decoration({
+		deco_type = "simple",
+		place_on = {"mcl_nether:netherrack","mcl_nether:glowstone","mcl_blackstone:nether_gold","mcl_nether:quartz_ore","mcl_core:gravel","mcl_nether:soul_sand"},
+		sidelen = 16,
+		fill_ratio = 10,
+		biomes = { "Nether" },
+		y_min = -31000,
+		y_max = mcl_vars.mg_nether_max,
+		decoration = "mcl_nether:netherrack",
+		flags = "all_floors",
+		param2 = 0,
+	})
+
+	minetest.register_biome({
+		name = "SoulsandValley",
+		node_filler = "mcl_nether:netherrack",
+		node_stone = "mcl_nether:netherrack",
+		node_top = "mcl_blackstone:soul_soil",
+		node_water = "air",
+		node_river_water = "air",
+		node_cave_liquid = "air",
+		y_min = mcl_vars.mg_nether_min,
+
+		y_max = mcl_vars.mg_nether_max + 80,
+		heat_point = 77,
+		humidity_point = 33,
+		_mcl_biome_type = "hot",
+		_mcl_palette_index = 17,
+	})
+	minetest.register_decoration({
+		deco_type = "simple",
+		place_on = {"mcl_nether:netherrack","mcl_nether:glowstone"},
+		sidelen = 16,
+		fill_ratio = 10,
+		biomes = { "SoulsandValley" },
+		y_min = -31000,
+		y_max = mcl_vars.mg_nether_max,
+		decoration = "mcl_blackstone:soul_soil",
+		flags = "all_floors, all_ceilings",
+		param2 = 0,
+	})
+
+	minetest.register_ore({
+		ore_type       = "blob",
+		ore            = "mcl_nether:soul_sand",
+		wherein        = { "mcl_nether:netherrack", "mcl_blackstone:soul_soil" },
+		clust_scarcity = 100,
+		clust_num_ores = 225,
+		clust_size     = 15,
+		biomes = { "SoulsandValley" },
+		y_min = mcl_vars.mg_nether_min,
+		y_max = mcl_vars.mg_nether_max + 80,
+		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_biome({
+		name = "CrimsonForest",
+		node_filler = "mcl_nether:netherrack",
+		node_stone = "mcl_nether:netherrack",
+		node_top = "mcl_crimson:crimson_nylium",
+		node_water = "air",
+		node_river_water = "air",
+		node_cave_liquid = "air",
+		y_min = mcl_vars.mg_nether_min,
+
+		y_max = mcl_vars.mg_nether_max + 80,
+		heat_point = 60,
+		humidity_point = 47,
+		_mcl_biome_type = "hot",
+		_mcl_palette_index = 17,
+	})
+	minetest.register_decoration({
+		deco_type = "simple",
+		place_on = {"mcl_nether:netherrack","mcl_nether:glowstone","mcl_blackstone:nether_gold","mcl_nether:quartz_ore","mcl_core:gravel","mcl_nether:soul_sand"},
+		sidelen = 16,
+		fill_ratio = 10,
+		biomes = { "CrimsonForest" },
+		y_min = -31000,
+		y_max = mcl_vars.mg_nether_max,
+		decoration = "mcl_crimson:crimson_nylium",
+		flags = "all_floors",
+		param2 = 0,
+	})
+	minetest.register_biome({
+		name = "WarpedForest",
+		node_filler = "mcl_nether:netherrack",
+		node_stone = "mcl_nether:netherrack",
+		node_top = "mcl_crimson:warped_nylium",
+		node_water = "air",
+		node_river_water = "air",
+		node_cave_liquid = "air",
+		y_min = mcl_vars.mg_nether_min,
+		y_max = mcl_vars.mg_nether_max + 80,
+		heat_point = 37,
+		humidity_point = 70,
+		_mcl_biome_type = "hot",
+		_mcl_palette_index = 17,
+	})
+	minetest.register_decoration({
+		deco_type = "simple",
+		place_on = {"mcl_nether:netherrack","mcl_nether:glowstone","mcl_blackstone:nether_gold","mcl_nether:quartz_ore","mcl_core:gravel","mcl_nether:soul_sand"},
+		sidelen = 16,
+		fill_ratio = 10,
+		biomes = { "WarpedForest" },
+		y_min = -31000,
+		y_max = mcl_vars.mg_nether_max,
+		decoration = "mcl_crimson:warped_nylium",
+		flags = "all_floors",
+		param2 = 0,
+	})
+	minetest.register_biome({
+		name = "BasaltDelta",
+		node_filler = "mcl_nether:netherrack",
+		node_stone = "mcl_nether:netherrack",
+		node_top = "mcl_blackstone:basalt",
+		node_water = "air",
+		node_river_water = "air",
+		node_cave_liquid = "air",
+		y_min = mcl_vars.mg_nether_min,
+		y_max = mcl_vars.mg_nether_max + 80,
+		heat_point = 27,
+		humidity_point = 80,
+		_mcl_biome_type = "hot",
+		_mcl_palette_index = 17,
+	})
+
+	minetest.register_ore({
+	ore_type       = "blob",
+	ore            = "mcl_blackstone:blackstone",
+	wherein        =  {"mcl_nether:netherrack","mcl_nether:glowstone","mcl_core:gravel","mcl_nether:soul_sand"},
+	clust_scarcity = 100,
+	clust_num_ores = 400,
+	clust_size     = 20,
+	biomes = { "BasaltDelta" },
+	y_min = mcl_vars.mg_nether_min,
+	y_max = mcl_vars.mg_nether_max + 80,
+	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_decoration({
+		deco_type = "simple",
+		place_on = {"mcl_nether:netherrack","mcl_nether:glowstone","mcl_blackstone:nether_gold","mcl_nether:quartz_ore","mcl_core:gravel","mcl_nether:soul_sand","mcl_blackstone:blackstone"},
+		sidelen = 16,
+		fill_ratio = 10,
+		biomes = { "BasaltDelta" },
+		y_min = -31000,
+		y_max = mcl_vars.mg_nether_max,
+		decoration = "mcl_blackstone:basalt",
+		flags = "all_floors",
+		param2 = 0,
+	})
+
 	--[[ THE END ]]
 	minetest.register_biome({
 		name = "End",
@@ -1581,6 +1751,39 @@ local function register_biome_ores()
 					"MesaPlateauFM", "MesaPlateauFM_sandlevel", "MesaPlateauFM_ocean", },
 		})
 	end
+	--nether gold
+	if mg_name ~= "v6" then
+		minetest.register_ore({
+			ore_type       = "scatter",
+			ore            = "mcl_blackstone:blackstone_gilded",
+			wherein        = "mcl_blackstone:blackstone",
+			clust_scarcity = 4775,
+			clust_num_ores = 2,
+			clust_size     = 2,
+			y_min          = mcl_vars.mg_nether_min,
+			y_max          = mcl_vars.mg_nether_max,
+		})
+		minetest.register_ore({
+			ore_type       = "scatter",
+			ore            = "mcl_blackstone:nether_gold",
+			wherein        = "mcl_nether:netherrack",
+			clust_scarcity = 830,
+			clust_num_ores = 5,
+			clust_size     = 3,
+			y_min          = mcl_vars.mg_nether_min,
+			y_max          = mcl_vars.mg_nether_max,
+		})
+		minetest.register_ore({
+			ore_type       = "scatter",
+			ore            = "mcl_blackstone:nether_gold",
+			wherein        = "mcl_nether:netherrack",
+			clust_scarcity = 1660,
+			clust_num_ores = 4,
+			clust_size     = 2,
+			y_min          = mcl_vars.mg_nether_min,
+			y_max          = mcl_vars.mg_nether_max,
+		})
+	end
 end
 
 -- Register “fake” ores directly related to the biomes. These are mostly low-level landscape alternations
@@ -3911,7 +4114,265 @@ end
 -- Decorations in non-Overworld dimensions
 local function register_dimension_decorations()
 	--[[ NETHER ]]
-	-- TODO: Nether
+	--NETHER WASTES (Nether)
+	minetest.register_decoration({
+		deco_type = "simple",
+		place_on = {"mcl_nether:netherrack","mcl_nether:magma"},
+		sidelen = 16,
+		fill_ratio = 0.04,
+		biomes = {"Nether"},
+		y_min = mcl_vars.mg_lava_nether_max + 1,
+		y_max = mcl_vars.mg_nether_max  - 1,
+		flags = "all_floors",
+		decoration = "mcl_fire:eternal_fire",
+	})
+	minetest.register_decoration({
+		deco_type = "simple",
+		place_on = {"mcl_nether:netherrack"},
+		sidelen = 16,
+		fill_ratio = 0.013,
+		biomes = {"Nether"},
+		y_min = mcl_vars.mg_lava_nether_max + 1,
+		y_max = mcl_vars.mg_nether_max  - 1,
+		flags = "all_floors",
+		decoration = "mcl_mushrooms:mushroom_brown",
+	})
+	minetest.register_decoration({
+		deco_type = "simple",
+		place_on = {"mcl_nether:netherrack"},
+		sidelen = 16,
+		fill_ratio = 0.012,
+		biomes = {"Nether"},
+		y_min = mcl_vars.mg_lava_nether_max + 1,
+		y_max = mcl_vars.mg_nether_max  - 1,
+		flags = "all_floors",
+		decoration = "mcl_mushrooms:mushroom_red",
+	})
+	minetest.register_decoration({
+		deco_type = "simple",
+		place_on = {"mcl_nether:soul_sand"},
+		sidelen = 16,
+		fill_ratio = 0.0032,
+		biomes = {"Nether","SoulsandValley"},
+		y_min = mcl_vars.mg_lava_nether_max + 1,
+		y_max = mcl_vars.mg_nether_max  - 1,
+		flags = "all_floors",
+		decoration = "mcl_nether:nether_wart",
+	})
+
+	-- WARPED FOREST
+	minetest.register_decoration({
+		deco_type = "simple",
+		place_on = {"mcl_crimson:warped_nylium"},
+		sidelen = 16,
+		fill_ratio = 0.02,
+		biomes = {"WarpedForest"},
+		y_min = mcl_vars.mg_lava_nether_max + 1,
+		y_max = mcl_vars.mg_nether_max  - 10,
+		flags = "all_floors",
+		decoration = "mcl_crimson:warped_fungus",
+	})
+	minetest.register_decoration({
+		deco_type = "schematic",
+		name = "mcl_biomes:warped_tree1",
+		place_on = {"mcl_crimson:warped_nylium"},
+		sidelen = 16,
+		fill_ratio = 0.007,
+		biomes = {"WarpedForest"},
+		y_min = mcl_vars.mg_lava_nether_max + 1,
+		y_max = mcl_vars.mg_nether_max - 15,
+		flags = "all_floors, place_center_x, place_center_z",
+		schematic = mod_mcl_crimson.."/schematics/warped_fungus_1.mts",
+		size = {x = 5, y = 11, z = 5},
+		rotation = "random",
+	})
+	minetest.register_decoration({
+		deco_type = "schematic",
+		name = "mcl_biomes:warped_tree2",
+		place_on = {"mcl_crimson:warped_nylium"},
+		sidelen = 16,
+		fill_ratio = 0.005,
+		biomes = {"WarpedForest"},
+		y_min = mcl_vars.mg_lava_nether_max + 1,
+		y_max = mcl_vars.mg_nether_max - 10,
+		flags = "all_floors, place_center_x, place_center_z",
+		schematic = mod_mcl_crimson.."/schematics/warped_fungus_2.mts",
+		size = {x = 5, y = 6, z = 5},
+		rotation = "random",
+	})
+	minetest.register_decoration({
+		deco_type = "schematic",
+		name = "mcl_biomes:warped_tree3",
+		place_on = {"mcl_crimson:warped_nylium"},
+		sidelen = 16,
+		fill_ratio = 0.003,
+		biomes = {"WarpedForest"},
+		y_min = mcl_vars.mg_lava_nether_max + 1,
+		y_max = mcl_vars.mg_nether_max - 14,
+		flags = "all_floors, place_center_x, place_center_z",
+		schematic = mod_mcl_crimson.."/schematics/warped_fungus_3.mts",
+		size = {x = 5, y = 12, z = 5},
+		rotation = "random",
+	})
+	minetest.register_decoration({
+		deco_type = "simple",
+		place_on = {"mcl_crimson:warped_nylium","mcl_crimson:twisting_vines"},
+		sidelen = 16,
+		fill_ratio = 0.012,
+		biomes = {"WarpedForest"},
+		y_min = mcl_vars.mg_lava_nether_max + 1,
+		flags = "all_floors",
+		height = 2,
+		height_max = 8,
+		decoration = "mcl_crimson:twisting_vines",
+	})
+	minetest.register_decoration({
+		deco_type = "simple",
+		place_on = {"mcl_crimson:warped_nylium"},
+		sidelen = 16,
+		fill_ratio = 0.0812,
+		biomes = {"WarpedForest"},
+		y_min = mcl_vars.mg_lava_nether_max + 1,
+		flags = "all_floors",
+		max_height = 5,
+		decoration = "mcl_crimson:warped_roots",
+	})
+	minetest.register_decoration({
+		deco_type = "simple",
+		place_on = {"mcl_crimson:crimson_nylium"},
+		sidelen = 16,
+		fill_ratio = 0.052,
+		biomes = {"WarpedForest"},
+		y_min = mcl_vars.mg_lava_nether_max + 1,
+		flags = "all_floors",
+		decoration = "mcl_crimson:nether_sprouts",
+	})
+	-- CRIMSON FOREST
+	minetest.register_decoration({
+		deco_type = "simple",
+		place_on = {"mcl_crimson:crimson_nylium"},
+		sidelen = 16,
+		fill_ratio = 0.02,
+		biomes = {"CrimsonForest"},
+		y_min = mcl_vars.mg_lava_nether_max + 1,
+		y_max = mcl_vars.mg_lava_nether_max  - 10,
+		flags = "all_floors",
+		decoration = "mcl_crimson:crimson_fungus",
+	})
+	minetest.register_decoration({
+		deco_type = "schematic",
+		name = "mcl_biomes:crimson_tree",
+		place_on = {"mcl_crimson:crimson_nylium"},
+		sidelen = 16,
+		fill_ratio = 0.008,
+		biomes = {"CrimsonForest"},
+		y_min = mcl_vars.mg_lava_nether_max + 1,
+		y_max = mcl_vars.mg_nether_max - 10,
+		flags = "all_floors, place_center_x, place_center_z",
+		schematic = mod_mcl_crimson.."/schematics/crimson_fungus_1.mts",
+		size = {x = 5, y = 8, z = 5},
+		rotation = "random",
+	})
+	minetest.register_decoration({
+		deco_type = "schematic",
+		name = "mcl_biomes:crimson_tree2",
+		place_on = {"mcl_crimson:crimson_nylium"},
+		sidelen = 16,
+		fill_ratio = 0.006,
+		biomes = {"CrimsonForest"},
+		y_min = mcl_vars.mg_lava_nether_max + 1,
+		y_max = mcl_vars.mg_nether_max - 15,
+		flags = "all_floors, place_center_x, place_center_z",
+		schematic = mod_mcl_crimson.."/schematics/crimson_fungus_2.mts",
+		size = {x = 5, y = 12, z = 5},
+		rotation = "random",
+	})
+	minetest.register_decoration({
+		deco_type = "schematic",
+		name = "mcl_biomes:crimson_tree3",
+		place_on = {"mcl_crimson:crimson_nylium"},
+		sidelen = 16,
+		fill_ratio = 0.004,
+		biomes = {"CrimsonForest"},
+		y_min = mcl_vars.mg_lava_nether_max + 1,
+		y_max = mcl_vars.mg_nether_max - 20,
+		flags = "all_floors, place_center_x, place_center_z",
+		schematic = mod_mcl_crimson.."/schematics/crimson_fungus_3.mts",
+		size = {x = 7, y = 13, z = 7},
+		rotation = "random",
+	})
+	minetest.register_decoration({
+		deco_type = "simple",
+		place_on = {"mcl_crimson:crimson_nylium"},
+		sidelen = 16,
+		fill_ratio = 0.082,
+		biomes = {"CrimsonForest"},
+		y_min = mcl_vars.mg_lava_nether_max + 1,
+		flags = "all_floors",
+		max_height = 5,
+		decoration = "mcl_crimson:crimson_roots",
+	})
+
+	--SOULSAND VALLEY
+	minetest.register_decoration({
+		deco_type = "simple",
+		place_on = {"mcl_blackstone:soul_soil","mcl_nether:soul_sand"},
+		sidelen = 16,
+		fill_ratio = 0.062,
+		biomes = {"SoulsandValley"},
+		y_min = mcl_vars.mg_lava_nether_max + 1,
+		flags = "all_floors",
+		max_height = 5,
+		decoration = "mcl_blackstone:soul_fire",
+	})
+	minetest.register_decoration({
+		deco_type = "schematic",
+		place_on = {"mcl_blackstone:soul_soil","mcl_nether:soulsand"},
+		sidelen = 16,
+		fill_ratio = 0.000212,
+		biomes = {"SoulsandValley"},
+		y_min = mcl_vars.mg_lava_nether_max + 1,
+		flags = "all_floors, place_center_x, place_center_z",
+		schematic = mod_mcl_blackstone.."/schematics/mcl_blackstone_nether_fossil_1.mts",
+		size = {x = 5, y = 8, z = 5},
+		rotation = "random",
+	})
+	minetest.register_decoration({
+		deco_type = "schematic",
+		place_on = {"mcl_blackstone:soul_soil","mcl_nether:soulsand"},
+		sidelen = 16,
+		fill_ratio = 0.0002233,
+		biomes = {"SoulsandValley"},
+		y_min = mcl_vars.mg_lava_nether_max + 1,
+		flags = "all_floors, place_center_x, place_center_z",
+		schematic = mod_mcl_blackstone.."/schematics/mcl_blackstone_nether_fossil_2.mts",
+		size = {x = 5, y = 8, z = 5},
+		rotation = "random",
+	})
+	minetest.register_decoration({
+		deco_type = "schematic",
+		place_on = {"mcl_blackstone:soul_soil","mcl_nether:soulsand"},
+		sidelen = 16,
+		fill_ratio = 0.000225,
+		biomes = {"SoulsandValley"},
+		y_min = mcl_vars.mg_lava_nether_max + 1,
+		flags = "all_floors, place_center_x, place_center_z",
+		schematic = mod_mcl_blackstone.."/schematics/mcl_blackstone_nether_fossil_3.mts",
+		size = {x = 5, y = 8, z = 5},
+		rotation = "random",
+	})
+	minetest.register_decoration({
+		deco_type = "schematic",
+		place_on = {"mcl_blackstone:soul_soil","mcl_nether:soulsand"},
+		sidelen = 16,
+		fill_ratio = 0.00022323,
+		biomes = {"SoulsandValley"},
+		y_min = mcl_vars.mg_lava_nether_max + 1,
+		flags = "all_floors, place_center_x, place_center_z",
+		schematic = mod_mcl_blackstone.."/schematics/mcl_blackstone_nether_fossil_4.mts",
+		size = {x = 5, y = 8, z = 5},
+		rotation = "random",
+	})
 
 	--[[ THE END ]]
 
@@ -3975,10 +4436,21 @@ if mg_name ~= "singlenode" then
 
 	-- Overworld decorations for v6 are handled in mcl_mapgen_core
 
-	if deco_id_chorus_plant then
+	local deco_ids_fungus ={
+		minetest.get_decoration_id("mcl_biomes:crimson_tree1"),
+		minetest.get_decoration_id("mcl_biomes:crimson_tree2"),
+		minetest.get_decoration_id("mcl_biomes:crimson_tree3"),
+		minetest.get_decoration_id("mcl_biomes:warped_tree1"),
+		minetest.get_decoration_id("mcl_biomes:warped_tree2"),
+		minetest.get_decoration_id("mcl_biomes:warped_tree3")
+	}
+	for _,f in pairs(deco_ids_fungus) do
+		minetest.set_gen_notify({decoration=true}, { f })
+	end
+	if deco_id_chorus_plant or deco_id_crimson_tree or deco_id_warped_tree then
 		mcl_mapgen_core.register_generator("chorus_grow", nil, function(minp, maxp, blockseed)
+			if minp.y > -26900 then return end
 			local gennotify = minetest.get_mapgen_object("gennotify")
-			--local poslist = {}
 			local pr = PseudoRandom(blockseed + 14)
 			for _, pos in ipairs(gennotify["decoration#"..deco_id_chorus_plant] or {}) do
 				local x, y, z = pos.x, pos.y, pos.z
@@ -3990,8 +4462,13 @@ if mg_name ~= "singlenode" then
 					end
 				end
 			end
+			if minp.y > mcl_vars.mg_nether_max then return end
+			for _,f in pairs(deco_ids_fungus) do
+				for _, pos in ipairs(gennotify["decoration#"..f] or {}) do
+					minetest.fix_light(vector.offset(pos,-8,-8,-8),vector.offset(pos,8,8,8))
+				end
+			end
 		end)
 	end
 
 end
-

mods/MAPGEN/mcl_biomes/mod.conf

@@ -1,4 +1,4 @@
 name = mcl_biomes
 author = maikerumine
 description = Adds the various biomes and biome-related things for non-v6 map generators.
-depends = mcl_init, mcl_mapgen_core, mcl_core, mcl_worlds, mcl_farming, mcl_flowers, mcl_end, mcl_ocean
+depends = mcl_init, mcl_mapgen_core, mcl_core, mcl_worlds, mcl_farming, mcl_flowers, mcl_end, mcl_ocean, mcl_crimson, mcl_blackstone

mods/MAPGEN/mcl_geodes/init.lua

@@ -76,10 +76,8 @@ mcl_structures.register_structure("geode",{
 		flags = "absvalue",
 	},
 	flags = "place_center_x, place_center_z, force_placement",
-	biomes = ocean_biomes,
 	y_max = -24,
 	y_min = mcl_vars.mg_overworld_min,
-	filenames = schems,
 	y_offset = function(pr) return pr:next(-4,-2) end,
 	place_func = function(pos,def,pr)
 		local p = vector.new(pos.x + pr:next(-30,30),pos.y,pos.z + pr:next(-30,30))

mods/MAPGEN/mcl_mapgen_core/init.lua

@@ -1754,70 +1754,69 @@ else
 	nether_wart_chance = 170
 end
 -- Generate Nether decorations manually: Eternal fire, mushrooms, nether wart
--- Minetest's API does not support decorations in caves yet. :-(
+-- (only v6)
 local function generate_nether_decorations(minp, maxp, seed)
-	local pr_nether = PseudoRandom(seed+667)
+	if mg_name == "v6" then
+		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)
+		if minp.y > mcl_vars.mg_nether_max or maxp.y < mcl_vars.mg_nether_min then
+			return
 		end
 
-	end
+		minetest.log("action", "[mcl_mapgen_core] Nether decorations " .. minetest.pos_to_string(minp) .. " ... " .. minetest.pos_to_string(maxp))
 
-	-- 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)
+		-- TODO: Generate everything based on Perlin noise instead of PseudoRandom
 
-	-- 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)
+		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"})
 
-	-- 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"})
+		-- 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
-	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)
 
-	-- 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)
+		-- 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
 end
 
 minetest.register_on_generated(function(minp, maxp, blockseed)

mods/MAPGEN/mcl_nether_fortresses/init.lua

@@ -0,0 +1,36 @@
+local modname = minetest.get_current_modname()
+local modpath = minetest.get_modpath(modname)
+
+mcl_structures.register_structure("nether_outpost",{
+	place_on = {"mcl_nether:netherrack","mcl_crimson:crimson_nylium","mcl_crimson:warped_nylium","mcl_blackstone:basalt","mcl_blackstone:soul_soil"},
+	noise_params = {
+		offset = 0,
+		scale = 0.00022,
+		spread = {x = 250, y = 250, z = 250},
+		seed = 333,
+		octaves = 1,
+		persist = 0.0001,
+		flags = "absvalue",
+	},
+	flags = "all_floors",
+	biomes = {"Nether","SoulsandValley","WarpedForest","CrimsonForest","BasaltDelta"},
+	on_place = function(pos,def,pr)
+		local sidelen = 15
+		local node = minetest.get_node(vector.offset(pos,1,1,0))
+		local solid = minetest.find_nodes_in_area(vector.offset(pos,-sidelen/2,-1,-sidelen/2),vector.offset(pos,sidelen/2,-1,sidelen/2),{"group:solid"})
+		local air = minetest.find_nodes_in_area(vector.offset(pos,-sidelen/2,1,-sidelen/2),vector.offset(pos,sidelen/2,4,sidelen/2),{"air"})
+		if #solid < ( sidelen * sidelen ) or
+		#air < (sidelen * sidelen ) then return false end
+		minetest.bulk_set_node(solid,node)
+		return true
+	end,
+	y_min = mcl_vars.mg_lava_nether_max,
+	y_max = mcl_vars.mg_nether_max - 30,
+	filenames = { modpath.."/schematics/nether_outpost.mts" },
+	y_offset = 0,
+	after_place = function(pos)
+		local sp = minetest.find_nodes_in_area(pos,vector.offset(pos,0,20,0),{"mcl_mobspawners:spawner"})
+		if not sp[1] then return end
+		mcl_mobspawners.setup_spawner(sp[1], "mobs_mc:blaze", 0, minetest.LIGHT_MAX+1, 10, 3, -1)
+	end
+})

mods/MAPGEN/mcl_nether_fortresses/mod.conf

@@ -0,0 +1,3 @@
+name = mcl_nether_fortresses
+author = cora
+depends = mcl_init, mcl_structures, mcl_mobspawners

mods/MAPGEN/mcl_structures/api.lua

@@ -8,6 +8,10 @@ function mcl_structures.place_structure(pos, def, pr)
 	elseif def.y_offset then
 		y_offset = def.y_offset
 	end
+	if def.on_place and not def.on_place(pos,def,pr) then
+		minetest.log("warning","[mcl_structures] "..def.name.." at "..minetest.pos_to_string(pos).." not placed. Conditions not satisfied.")
+		return false
+	end
 	if def.filenames then
 		local file = def.filenames[pr:next(1,#def.filenames)]
 		local pp = vector.offset(pos,0,y_offset,0)

mods/MAPGEN/mcl_surface_pools/init.lua

@@ -1,106 +0,0 @@
-local adjacents = {
-	vector.new(1,0,0),
-	vector.new(1,0,1),
-	vector.new(1,0,-1),
-	vector.new(-1,0,0),
-	vector.new(-1,0,1),
-	vector.new(-1,0,-1),
-	vector.new(0,0,1),
-	vector.new(0,0,-1),
-	vector.new(0,-1,0)
-}
-
-local function set_node_no_bedrock(pos,node)
-	local n = minetest.get_node(pos)
-	if n.name == "mcl_core:bedrock" then return end
-	return minetest.set_node(pos,node)
-end
-
-local function airtower(pos)
-	for i=0,55 do
-		set_node_no_bedrock(vector.offset(pos,0,i,0),{name="air"})
-	end
-end
-
-local function makelake(pos,size,liquid,border,pr)
-	local node_under = minetest.get_node(vector.offset(pos,0,1,0))
-	local p1 = vector.offset(pos,-size,-size,-size)
-	local p2 = vector.offset(pos,size,size,size)
-	local nn = minetest.find_nodes_in_area(p1,p2,{"group:material_stone", "group:sand", "group:dirt"})
-	table.sort(nn,function(a, b)
-		   return vector.distance(pos, a) < vector.distance(pos, b)
-	end)
-	if not nn[1] then return end
-	local y = pos.y + 1
-	local lq = {}
-	for i=1,pr:next(1,#nn) do
-		if nn[i].y == y then
-			set_node_no_bedrock(nn[i],{name=liquid})
-			airtower(vector.offset(nn[i],0,1,0))
-			table.insert(lq,nn[i])
-		end
-	end
-
-	for k,v in pairs(lq) do
-		for kk,vv in pairs(adjacents) do
-			local pp = vector.add(v,vv)
-			local an = minetest.get_node(pp)
-			local un = minetest.get_node(vector.offset(pp,0,1,0))
-			if not border then
-				if minetest.get_item_group(an.name,"solid") > 0 then
-					border = an.name
-				elseif minetest.get_item_group(minetest.get_node(nn[1]).name,"solid") > 0 then
-					border = minetest.get_node(nn[1]).name
-				else
-					border = "mcl_core:stone"
-				end
-				if border == "mcl_core:dirt" then border = "mcl_core:dirt_with_grass" end
-			end
-			if an.name ~= liquid then
-				set_node_no_bedrock(pp,{name=border})
-				if un.name ~= liquid then
-					airtower(vector.offset(pp,0,1,0))
-				end
-			end
-		end
-	end
-	return true
-end
-
-mcl_structures.register_structure("lavapool",{
-	place_on = {"group:sand", "group:dirt", "group:stone"},
-	noise_params = {
-		offset = 0,
-		scale = 0.0000022,
-		spread = {x = 250, y = 250, z = 250},
-		seed = 78375213,
-		octaves = 3,
-		persist = 0.001,
-		flags = "absvalue",
-	},
-	flags = "place_center_x, place_center_z, force_placement",
-	y_max = mcl_vars.mg_overworld_max,
-	y_min = minetest.get_mapgen_setting("water_level"),
-	place_func = function(pos,def,pr)
-		return makelake(pos,5,"mcl_core:lava_source","mcl_core:stone",pr)
-	end
-})
-
-mcl_structures.register_structure("water_lake",{
-	place_on = {"group:dirt","group:stone"},
-	noise_params = {
-		offset = 0,
-		scale = 0.000032,
-		spread = {x = 250, y = 250, z = 250},
-		seed = 734341353,
-		octaves = 3,
-		persist = 0.001,
-		flags = "absvalue",
-	},
-	flags = "place_center_x, place_center_z, force_placement",
-	y_max = mcl_vars.mg_overworld_max,
-	y_min = minetest.get_mapgen_setting("water_level"),
-	place_func = function(pos,def,pr)
-		return makelake(pos,5,"mcl_core:water_source",nil,pr)
-	end
-})

mods/MAPGEN/mcl_terrain_features/init.lua

@@ -0,0 +1,224 @@
+local adjacents = {
+	vector.new(1,0,0),
+	vector.new(1,0,1),
+	vector.new(1,0,-1),
+	vector.new(-1,0,0),
+	vector.new(-1,0,1),
+	vector.new(-1,0,-1),
+	vector.new(0,0,1),
+	vector.new(0,0,-1),
+	vector.new(0,-1,0)
+}
+
+local plane_adjacents = {
+	vector.new(1,0,0),
+	vector.new(-1,0,0),
+	vector.new(0,0,1),
+	vector.new(0,0,-1),
+}
+
+local function set_node_no_bedrock(pos,node)
+	local n = minetest.get_node(pos)
+	if n.name == "mcl_core:bedrock" then return end
+	return minetest.set_node(pos,node)
+end
+
+local function airtower(pos)
+	for i=0,55 do
+		set_node_no_bedrock(vector.offset(pos,0,i,0),{name="air"})
+	end
+end
+
+local function makelake(pos,size,liquid,placein,border,pr)
+	local node_under = minetest.get_node(vector.offset(pos,0,1,0))
+	local p1 = vector.offset(pos,-size,-size,-size)
+	local p2 = vector.offset(pos,size,size,size)
+	local nn = minetest.find_nodes_in_area(p1,p2,placein)
+	table.sort(nn,function(a, b)
+	   return vector.distance(vector.new(pos.x,0,pos.z), a) < vector.distance(vector.new(pos.x,0,pos.z), b)
+	end)
+	if not nn[1] then return end
+	local y = pos.y + 1
+	local lq = {}
+	for i=1,pr:next(1,#nn) do
+		if nn[i].y == y then
+			set_node_no_bedrock(nn[i],{name=liquid})
+			airtower(vector.offset(nn[i],0,1,0))
+			table.insert(lq,nn[i])
+		end
+	end
+
+	for k,v in pairs(lq) do
+		for kk,vv in pairs(adjacents) do
+			local pp = vector.add(v,vv)
+			local an = minetest.get_node(pp)
+			local un = minetest.get_node(vector.offset(pp,0,1,0))
+			if not border then
+				if minetest.get_item_group(an.name,"solid") > 0 then
+					border = an.name
+				elseif minetest.get_item_group(minetest.get_node(nn[1]).name,"solid") > 0 then
+					border = minetest.get_node(nn[1]).name
+				else
+					border = "mcl_core:stone"
+				end
+				if border == "mcl_core:dirt" then border = "mcl_core:dirt_with_grass" end
+			end
+			if an.name ~= liquid then
+				set_node_no_bedrock(pp,{name=border})
+				if un.name ~= liquid then
+					airtower(vector.offset(pp,0,1,0))
+				end
+			end
+		end
+	end
+	return true
+end
+
+mcl_structures.register_structure("lavapool",{
+	place_on = {"group:sand", "group:dirt", "group:stone"},
+	noise_params = {
+		offset = 0,
+		scale = 0.0000022,
+		spread = {x = 250, y = 250, z = 250},
+		seed = 78375213,
+		octaves = 3,
+		persist = 0.001,
+		flags = "absvalue",
+	},
+	flags = "place_center_x, place_center_z, force_placement",
+	y_max = mcl_vars.mg_overworld_max,
+	y_min = minetest.get_mapgen_setting("water_level"),
+	place_func = function(pos,def,pr)
+		return makelake(pos,5,"mcl_core:lava_source","mcl_core:stone",{"group:material_stone", "group:sand", "group:dirt"},pr)
+	end
+})
+
+mcl_structures.register_structure("water_lake",{
+	place_on = {"group:dirt","group:stone"},
+	noise_params = {
+		offset = 0,
+		scale = 0.000032,
+		spread = {x = 250, y = 250, z = 250},
+		seed = 756641353,
+		octaves = 3,
+		persist = 0.001,
+		flags = "absvalue",
+	},
+	flags = "place_center_x, place_center_z, force_placement",
+	y_max = mcl_vars.mg_overworld_max,
+	y_min = minetest.get_mapgen_setting("water_level"),
+	place_func = function(pos,def,pr)
+		return makelake(pos,5,"mcl_core:water_source",{"group:material_stone", "group:sand", "group:dirt"},nil,pr)
+	end
+})
+
+
+mcl_structures.register_structure("basalt_column",{
+	place_on = {"mcl_blackstone:blackstone","mcl_blackstone:basalt"},
+	spawn_by = {"air"},
+	num_spawn_by = 2,
+	noise_params = {
+		offset = 0,
+		scale = 0.02,
+		spread = {x = 250, y = 250, z = 250},
+		seed = 7225213,
+		octaves = 5,
+		persist = 0.1,
+		flags = "absvalue",
+	},
+	flags = "all_floors",
+	y_max = mcl_vars.mg_nether_max,
+	y_min = mcl_vars.mg_lava_nether_max + 1,
+	biomes = { "BasaltDelta" },
+	place_func = function(pos,def,pr)
+		local nn = minetest.find_nodes_in_area(vector.offset(pos,-5,-1,-5),vector.offset(pos,5,-1,5),{"air","mcl_blackstone:basalt","mcl_blackstone:blackstone"})
+		table.sort(nn,function(a, b)
+		   return vector.distance(vector.new(pos.x,0,pos.z), a) < vector.distance(vector.new(pos.x,0,pos.z), b)
+		end)
+		if #nn < 1 then return false end
+		for i=1,pr:next(1,#nn) do
+			if minetest.get_node(vector.offset(nn[i],0,-1,0)).name ~= "air" then
+				local dst=vector.distance(pos,nn[i])
+				for ii=0,pr:next(2,14)-dst do
+					set_node_no_bedrock(vector.new(nn[i].x,nn[i].y + ii,nn[i].z),{name="mcl_blackstone:basalt"})
+				end
+			end
+		end
+		return true
+	end
+})
+mcl_structures.register_structure("basalt_pillar",{
+	place_on = {"mcl_blackstone:blackstone","mcl_blackstone:basalt"},
+	noise_params = {
+		offset = 0,
+		scale = 0.001,
+		spread = {x = 250, y = 250, z = 250},
+		seed = 783213,
+		octaves = 5,
+		persist = 0.1,
+		flags = "absvalue",
+	},
+	flags = "all_floors",
+	y_max = mcl_vars.mg_nether_max,
+	y_min = mcl_vars.mg_lava_nether_max + 1,
+	biomes = { "BasaltDelta" },
+	place_func = function(pos,def,pr)
+		local nn = minetest.find_nodes_in_area(vector.offset(pos,-2,-1,-2),vector.offset(pos,2,-1,2),{"air","mcl_blackstone:basalt","mcl_blackstone:blackstone"})
+		table.sort(nn,function(a, b)
+		   return vector.distance(vector.new(pos.x,0,pos.z), a) < vector.distance(vector.new(pos.x,0,pos.z), b)
+		end)
+		if #nn < 1 then return false end
+		for i=1,pr:next(1,#nn) do
+			if minetest.get_node(vector.offset(nn[i],0,-1,0)).name ~= "air" then
+				local dst=vector.distance(pos,nn[i])
+				for ii=0,pr:next(19,34)-dst do
+					set_node_no_bedrock(vector.new(nn[i].x,nn[i].y + ii,nn[i].z),{name="mcl_blackstone:basalt"})
+				end
+			end
+		end
+		return true
+	end
+})
+
+mcl_structures.register_structure("lavadelta",{
+	place_on = {"mcl_blackstone:blackstone","mcl_blackstone:basalt"},
+	spawn_by = {"mcl_blackstone:basalt","mcl_blackstone:blackstone"},
+	num_spawn_by = 2,
+	noise_params = {
+		offset = 0,
+		scale = 0.01,
+		spread = {x = 250, y = 250, z = 250},
+		seed = 78375213,
+		octaves = 5,
+		persist = 0.1,
+		flags = "absvalue",
+	},
+	flags = "all_floors",
+	y_max = mcl_vars.mg_nether_max,
+	y_min = mcl_vars.mg_lava_nether_max + 1,
+	biomes = { "BasaltDelta" },
+	place_func = function(pos,def,pr)
+		local nn = minetest.find_nodes_in_area_under_air(vector.offset(pos,-10,-1,-10),vector.offset(pos,10,-1,10),{"mcl_blackstone:basalt","mcl_blackstone:blackstone"})
+		table.sort(nn,function(a, b)
+		   return vector.distance(vector.new(pos.x,0,pos.z), a) < vector.distance(vector.new(pos.x,0,pos.z), b)
+		end)
+		if #nn < 1 then return false end
+		local lava = {}
+		for i=1,pr:next(1,#nn) do
+			set_node_no_bedrock(nn[i],{name="mcl_nether:nether_lava_source"})
+			table.insert(lava,nn[i])
+		end
+		for _,v in pairs(lava) do
+			for _,vv in pairs(adjacents) do
+				local p = vector.add(v,vv)
+				if minetest.get_node(p).name ~= "mcl_nether:nether_lava_source" then
+					set_node_no_bedrock(p,{name="mcl_blackstone:basalt"})
+				end
+			end
+			if math.random(3) == 1 then
+				set_node_no_bedrock(v,{name="mcl_nether:magma"})
+			end
+		end
+		return true
+	end
+})

mods/MAPGEN/mcl_terrain_features/mod.conf

@@ -1,3 +1,3 @@
-name = mcl_surface_pools
+name = mcl_terrain_features
 author = cora
 depends = mcl_init, mcl_structures