From ff153c9c1ff015a0f3769e30066ebb346c16bcfb Mon Sep 17 00:00:00 2001
From: TenPlus1 <kinsellaja@yahoo.com>
Date: Wed, 13 Mar 2019 21:05:35 +0000
Subject: [PATCH] add Tundra biome if 5.0 found

---
 init.lua   | 239 +++++++++++++++++++++++++++--------------------------
 mapgen.lua | 105 +++++++++++++++++++++++
 2 files changed, 225 insertions(+), 119 deletions(-)

diff --git a/init.lua b/init.lua
index 9be5f7d..2d94411 100644
--- a/init.lua
+++ b/init.lua
@@ -1,119 +1,120 @@
---[[
-
-	Minetest Ethereal Mod
-
-	Created by ChinChow
-
-	Updated by TenPlus1
-
-]]
-
- -- DO NOT change settings below, use the settings.conf file instead
-ethereal = {
-
-	version = "1.25",
-	leaftype = 0, -- 0 for 2D plantlike, 1 for 3D allfaces
-	leafwalk = false, -- true for walkable leaves, false to fall through
-	cavedirt = true, -- caves chop through dirt when true
-	torchdrop = true, -- torches drop when touching water
-	papyruswalk = true, -- papyrus can be walked on
-	lilywalk = true, -- waterlilies can be walked on
-	xcraft = true, -- allow cheat crafts for cobble->gravel->dirt->sand, ice->snow, dry dirt->desert sand
-	glacier   = 1, -- Ice glaciers with snow
-	bamboo    = 1, -- Bamboo with sprouts
-	mesa      = 1, -- Mesa red and orange clay with giant redwood
-	alpine    = 1, -- Snowy grass
-	healing   = 1, -- Snowy peaks with healing trees
-	snowy     = 1, -- Cold grass with pine trees and snow spots
-	frost     = 1, -- Blue dirt with blue/pink frost trees
-	grassy    = 1, -- Green grass with flowers and trees
-	caves     = 1, -- Desert stone ares with huge caverns underneath
-	grayness  = 1, -- Grey grass with willow trees
-	grassytwo = 1, -- Sparse trees with old trees and flowers
-	prairie   = 1, -- Flowery grass with many plants and flowers
-	jumble    = 1, -- Green grass with trees and jungle grass
-	junglee   = 1, -- Jungle grass with tall jungle trees
-	desert    = 1, -- Desert sand with cactus
-	grove     = 1, -- Banana groves and ferns
-	mushroom  = 1, -- Purple grass with giant mushrooms
-	sandstone = 1, -- Sandstone with smaller cactus
-	quicksand = 1, -- Quicksand banks
-	plains    = 1, -- Dry dirt with scorched trees
-	savannah  = 1, -- Dry yellow grass with acacia tree's
-	fiery     = 1, -- Red grass with lava craters
-	sandclay  = 1, -- Sand areas with clay underneath
-	swamp     = 1, -- Swamp areas with vines on tree's, mushrooms, lilly's and clay sand
-	sealife   = 1, -- Enable coral and seaweed
-	reefs     = 1, -- Enable new 0.4.15 coral reefs in default
-    sakura    = 1, -- Enable sakura biome with trees
-}
-
-local path = minetest.get_modpath("ethereal")
-
--- Load new settings if found
-local input = io.open(path.."/settings.conf", "r")
-if input then
-	dofile(path .. "/settings.conf")
-	input:close()
-	input = nil
-end
-
--- Intllib
-local S
-if minetest.global_exists("intllib") then
-	if intllib.make_gettext_pair then
-		-- New method using gettext.
-		S = intllib.make_gettext_pair()
-	else
-		-- Old method using text files.
-		S = intllib.Getter()
-	end
-else
-	S = function(s) return s end
-end
-ethereal.intllib = S
-
--- Falling node function
-ethereal.check_falling = minetest.check_for_falling or nodeupdate
-
--- creative check
-local creative_mode_cache = minetest.settings:get_bool("creative_mode")
-function ethereal.check_creative(name)
-	return creative_mode_cache or minetest.check_player_privs(name, {creative = true})
-end
-
-dofile(path .. "/plantlife.lua")
-dofile(path .. "/mushroom.lua")
-dofile(path .. "/onion.lua")
-dofile(path .. "/crystal.lua")
-dofile(path .. "/water.lua")
-dofile(path .. "/dirt.lua")
-dofile(path .. "/food.lua")
-dofile(path .. "/wood.lua")
-dofile(path .. "/leaves.lua")
-dofile(path .. "/sapling.lua")
-dofile(path .. "/strawberry.lua")
-dofile(path .. "/fishing.lua")
-dofile(path .. "/extra.lua")
-dofile(path .. "/sealife.lua")
-dofile(path .. "/fences.lua")
-dofile(path .. "/gates.lua")
-dofile(path .. "/mapgen.lua")
-dofile(path .. "/compatibility.lua")
-dofile(path .. "/stairs.lua")
-dofile(path .. "/lucky_block.lua")
-
--- Set bonemeal aliases
-if minetest.get_modpath("bonemeal") then
-	minetest.register_alias("ethereal:bone", "bonemeal:bone")
-	minetest.register_alias("ethereal:bonemeal", "bonemeal:bonemeal")
-else -- or return to where it came from
-	minetest.register_alias("ethereal:bone", "default:dirt")
-	minetest.register_alias("ethereal:bonemeal", "default:dirt")
-end
-
-if minetest.get_modpath("xanadu") then
-	dofile(path .. "/plantpack.lua")
-end
-
-print (S("[MOD] Ethereal loaded"))
+--[[
+
+	Minetest Ethereal Mod
+
+	Created by ChinChow
+
+	Updated by TenPlus1
+
+]]
+
+ -- DO NOT change settings below, use the settings.conf file instead
+ethereal = {
+
+	version = "1.25",
+	leaftype = 0, -- 0 for 2D plantlike, 1 for 3D allfaces
+	leafwalk = false, -- true for walkable leaves, false to fall through
+	cavedirt = true, -- caves chop through dirt when true
+	torchdrop = true, -- torches drop when touching water
+	papyruswalk = true, -- papyrus can be walked on
+	lilywalk = true, -- waterlilies can be walked on
+	xcraft = true, -- allow cheat crafts for cobble->gravel->dirt->sand, ice->snow, dry dirt->desert sand
+	glacier   = 1, -- Ice glaciers with snow
+	bamboo    = 1, -- Bamboo with sprouts
+	mesa      = 1, -- Mesa red and orange clay with giant redwood
+	alpine    = 1, -- Snowy grass
+	healing   = 1, -- Snowy peaks with healing trees
+	snowy     = 1, -- Cold grass with pine trees and snow spots
+	frost     = 1, -- Blue dirt with blue/pink frost trees
+	grassy    = 1, -- Green grass with flowers and trees
+	caves     = 1, -- Desert stone ares with huge caverns underneath
+	grayness  = 1, -- Grey grass with willow trees
+	grassytwo = 1, -- Sparse trees with old trees and flowers
+	prairie   = 1, -- Flowery grass with many plants and flowers
+	jumble    = 1, -- Green grass with trees and jungle grass
+	junglee   = 1, -- Jungle grass with tall jungle trees
+	desert    = 1, -- Desert sand with cactus
+	grove     = 1, -- Banana groves and ferns
+	mushroom  = 1, -- Purple grass with giant mushrooms
+	sandstone = 1, -- Sandstone with smaller cactus
+	quicksand = 1, -- Quicksand banks
+	plains    = 1, -- Dry dirt with scorched trees
+	savannah  = 1, -- Dry yellow grass with acacia tree's
+	fiery     = 1, -- Red grass with lava craters
+	sandclay  = 1, -- Sand areas with clay underneath
+	swamp     = 1, -- Swamp areas with vines on tree's, mushrooms, lilly's and clay sand
+	sealife   = 1, -- Enable coral and seaweed
+	reefs     = 1, -- Enable new 0.4.15 coral reefs in default
+	sakura    = 1, -- Enable sakura biome with trees
+	tundra    = 1, -- Enable tuntra biome with permafrost
+}
+
+local path = minetest.get_modpath("ethereal")
+
+-- Load new settings if found
+local input = io.open(path.."/settings.conf", "r")
+if input then
+	dofile(path .. "/settings.conf")
+	input:close()
+	input = nil
+end
+
+-- Intllib
+local S
+if minetest.global_exists("intllib") then
+	if intllib.make_gettext_pair then
+		-- New method using gettext.
+		S = intllib.make_gettext_pair()
+	else
+		-- Old method using text files.
+		S = intllib.Getter()
+	end
+else
+	S = function(s) return s end
+end
+ethereal.intllib = S
+
+-- Falling node function
+ethereal.check_falling = minetest.check_for_falling or nodeupdate
+
+-- creative check
+local creative_mode_cache = minetest.settings:get_bool("creative_mode")
+function ethereal.check_creative(name)
+	return creative_mode_cache or minetest.check_player_privs(name, {creative = true})
+end
+
+dofile(path .. "/plantlife.lua")
+dofile(path .. "/mushroom.lua")
+dofile(path .. "/onion.lua")
+dofile(path .. "/crystal.lua")
+dofile(path .. "/water.lua")
+dofile(path .. "/dirt.lua")
+dofile(path .. "/food.lua")
+dofile(path .. "/wood.lua")
+dofile(path .. "/leaves.lua")
+dofile(path .. "/sapling.lua")
+dofile(path .. "/strawberry.lua")
+dofile(path .. "/fishing.lua")
+dofile(path .. "/extra.lua")
+dofile(path .. "/sealife.lua")
+dofile(path .. "/fences.lua")
+dofile(path .. "/gates.lua")
+dofile(path .. "/mapgen.lua")
+dofile(path .. "/compatibility.lua")
+dofile(path .. "/stairs.lua")
+dofile(path .. "/lucky_block.lua")
+
+-- Set bonemeal aliases
+if minetest.get_modpath("bonemeal") then
+	minetest.register_alias("ethereal:bone", "bonemeal:bone")
+	minetest.register_alias("ethereal:bonemeal", "bonemeal:bonemeal")
+else -- or return to where it came from
+	minetest.register_alias("ethereal:bone", "default:dirt")
+	minetest.register_alias("ethereal:bonemeal", "default:dirt")
+end
+
+if minetest.get_modpath("xanadu") then
+	dofile(path .. "/plantpack.lua")
+end
+
+print (S("[MOD] Ethereal loaded"))
diff --git a/mapgen.lua b/mapgen.lua
index 097108f..1c61022 100644
--- a/mapgen.lua
+++ b/mapgen.lua
@@ -939,3 +939,108 @@ minetest.register_decoration({
 	decoration = {"wine:blue_agave"},
 })
 end
+
+if ethereal.tundra and minetest.registered_nodes["default:permafrost"] then
+minetest.register_biome({
+		name = "tundra_highland",
+		node_dust = "default:snow",
+		node_riverbed = "default:gravel",
+		depth_riverbed = 2,
+		y_max = 180,
+		y_min = 47,
+		heat_point = 0,
+		humidity_point = 40,
+	})
+
+	minetest.register_biome({
+		name = "tundra",
+		node_top = "default:permafrost_with_stones",
+		depth_top = 1,
+		node_filler = "default:permafrost",
+		depth_filler = 1,
+		node_riverbed = "default:gravel",
+		depth_riverbed = 2,
+		vertical_blend = 4,
+		y_max = 46,
+		y_min = 2,
+		heat_point = 0,
+		humidity_point = 40,
+	})
+
+	minetest.register_biome({
+		name = "tundra_beach",
+		node_top = "default:gravel",
+		depth_top = 1,
+		node_filler = "default:gravel",
+		depth_filler = 2,
+		node_riverbed = "default:gravel",
+		depth_riverbed = 2,
+		vertical_blend = 1,
+		y_max = 1,
+		y_min = -3,
+		heat_point = 0,
+		humidity_point = 40,
+	})
+
+	minetest.register_biome({
+		name = "tundra_ocean",
+		node_top = "default:sand",
+		depth_top = 1,
+		node_filler = "default:sand",
+		depth_filler = 3,
+		node_riverbed = "default:gravel",
+		depth_riverbed = 2,
+		vertical_blend = 1,
+		y_max = -4,
+		y_min = -112,
+		heat_point = 0,
+		humidity_point = 40,
+	})
+
+	-- Tundra moss
+
+	minetest.register_decoration({
+		deco_type = "simple",
+		place_on = {"default:permafrost_with_stones"},
+		sidelen = 4,
+		noise_params = {
+			offset = -0.8,
+			scale = 2.0,
+			spread = {x = 100, y = 100, z = 100},
+			seed = 53995,
+			octaves = 3,
+			persist = 1.0
+		},
+		biomes = {"tundra"},
+		y_max = 50,
+		y_min = 2,
+		decoration = "default:permafrost_with_moss",
+		place_offset_y = -1,
+		flags = "force_placement",
+	})
+
+	-- Tundra patchy snow
+
+	minetest.register_decoration({
+		deco_type = "simple",
+		place_on = {
+			"default:permafrost_with_moss",
+			"default:permafrost_with_stones",
+			"default:stone",
+			"default:gravel"
+		},
+		sidelen = 4,
+		noise_params = {
+			offset = 0,
+			scale = 1.0,
+			spread = {x = 100, y = 100, z = 100},
+			seed = 172555,
+			octaves = 3,
+			persist = 1.0
+		},
+		biomes = {"tundra", "tundra_beach"},
+		y_max = 50,
+		y_min = 1,
+		decoration = "default:snow",
+	})
+end