local mod_mcl_core = minetest.get_modpath("mcl_core")

-- Cold Taiga aka Snowy Taiga
vl_biomes.register_biome({
	name = "ColdTaiga",
	node_dust = "mcl_core:snow",
	node_top = "mcl_core:dirt_with_grass_snow",
	depth_top = 1,
	node_filler = "mcl_core:dirt",
	depth_filler = 2,
	node_riverbed = "mcl_core:sand",
	depth_riverbed = 2,
	y_min = 3,
	y_max = vl_biomes.overworld_max,
	humidity_point = 58,
	heat_point = 8,
	_mcl_biome_type = "snowy",
	_mcl_water_temp = "frozen",
	_mcl_grass_palette_index = 3,
	_mcl_foliage_palette_index = 2,
	_mcl_water_palette_index = 5,
	_mcl_skycolor = "#839EFF",
	-- A cold beach-like biome, implemented as low part of Cold Taiga
	_beach = {
		node_top = "mcl_core:sand",
		depth_top = 2,
		node_water_top = "mcl_core:ice",
		depth_water_top = 1,
		node_filler = "mcl_core:sandstone",
		depth_filler = 2,
		y_min = 1,
		y_max = 2,
		_mcl_foliage_palette_index = 16,
		_mcl_skycolor = "#7FA1FF", -- not default, but icy
	},
	-- Water part of the beach. Added to prevent snow being on the ice.
	_beach_water = {
		node_top = "mcl_core:sand",
		depth_top = 2,
		node_water_top = "mcl_core:ice",
		depth_water_top = 1,
		node_filler = "mcl_core:sandstone",
		depth_filler = 2,
		y_min = -4,
		y_max = 0,
		_mcl_foliage_palette_index = 16,
		_mcl_skycolor = "#7FA1FF", -- not default, but icy
	},
	_ocean = {
		node_top = "mcl_core:gravel",
		depth_top = 1,
		node_filler = "mcl_core:gravel",
		depth_filler = 3,
		y_max = -5,
		vertical_blend = 1,
		_mcl_skycolor = "#7FA1FF", -- not default, but icy
	},
})
-- Small lollipop spruce
mcl_mapgen_core.register_decoration({
	deco_type = "schematic",
	place_on = {"group:grass_block", "mcl_core:podzol"},
	sidelen = 16,
	noise_params = {
		offset = 0.004,
		scale = 0.0022,
		spread = vector.new(250, 250, 250),
		seed = 2500,
		octaves = 3,
		persist = 0.66
	},
	biomes = {"ColdTaiga"},
	y_min = 2,
	y_max = vl_biomes.overworld_max,
	schematic = mod_mcl_core .. "/schematics/mcl_core_spruce_lollipop.mts",
	flags = "place_center_x, place_center_z",
})

-- Matchstick spruce: Very few leaves, tall trunk
mcl_mapgen_core.register_decoration({
	deco_type = "schematic",
	place_on = {"group:grass_block", "mcl_core:podzol"},
	sidelen = 80,
	noise_params = {
		offset = -0.025,
		scale = 0.025,
		spread = vector.new(250, 250, 250),
		seed = 2566,
		octaves = 5,
		persist = 0.60,
	},
	biomes = {"ColdTaiga"},
	y_min = 3,
	y_max = vl_biomes.overworld_max,
	schematic = mod_mcl_core .. "/schematics/mcl_core_spruce_matchstick.mts",
	flags = "place_center_x, place_center_z",
})

vl_biomes.register_spruce_decoration(11000, 0.00150, "mcl_core_spruce_5.mts", {"ColdTaiga"})

vl_biomes.register_spruce_decoration(2500, 0.00325, "mcl_core_spruce_1.mts", {"ColdTaiga"})
vl_biomes.register_spruce_decoration(7000, 0.00425, "mcl_core_spruce_3.mts", {"ColdTaiga"})
vl_biomes.register_spruce_decoration(9000, 0.00325, "mcl_core_spruce_4.mts", {"ColdTaiga"})