minetest.register_alias("mapgen_sand", "default:sand")
minetest.register_alias("mapgen_water_source", "default:water_source")
minetest.register_alias("mapgen_river_water_source", "default:river_water_source")
minetest.register_alias("mapgen_lava_source", "default:lava_source")
minetest.register_alias("mapgen_gravel", "default:gravel")
minetest.register_alias("mapgen_desert_stone", "default:desert_stone")
minetest.register_alias("mapgen_desert_sand", "default:desert_sand")
minetest.register_alias("mapgen_dirt_with_snow", "default:dirt_with_snow")
minetest.register_alias("mapgen_snowblock", "default:snowblock")
minetest.register_alias("mapgen_snow", "default:snow")
minetest.register_alias("mapgen_ice", "default:ice")
minetest.register_alias("mapgen_sandstone", "default:sandstone")

-- Flora

minetest.register_alias("mapgen_tree", "default:tree")
minetest.register_alias("mapgen_leaves", "default:leaves")
minetest.register_alias("mapgen_apple", "default:apple")
minetest.register_alias("mapgen_jungletree", "default:jungletree")
minetest.register_alias("mapgen_jungleleaves", "default:jungleleaves")
minetest.register_alias("mapgen_junglegrass", "default:junglegrass")
minetest.register_alias("mapgen_pine_tree", "default:pine_tree")
minetest.register_alias("mapgen_pine_needles", "default:pine_needles")

-- Dungeons

minetest.register_alias("mapgen_cobble", "default:cobble")
minetest.register_alias("mapgen_stair_cobble", "stairs:stair_cobble")
minetest.register_alias("mapgen_mossycobble", "default:mossycobble")
minetest.register_alias("mapgen_stair_desert_stone", "stairs:stair_desert_stone")
minetest.register_alias("mapgen_sandstonebrick", "default:sandstonebrick")
minetest.register_alias("mapgen_stair_sandstone_block", "stairs:stair_sandstone_block")


minetest.register_ore({
		ore_type        = "blob",
		ore             = "default:clay",
		wherein         = {"default:sand"},
		clust_scarcity  = 16 * 16 * 16,
		clust_size      = 5,
		y_max           = 0,
		y_min           = -15,
		noise_threshold = 0.0,
		noise_params    = {
			offset = 0.5,
			scale = 0.2,
			spread = {x = 5, y = 5, z = 5},
			seed = -316,
			octaves = 1,
			persist = 0.0
		},
	})

	-- Sand

	minetest.register_ore({
		ore_type        = "blob",
		ore             = "default:sand",
		wherein         = {"default:stone", "default:desert_stone"},
		clust_scarcity  = 16 * 16 * 16,
		clust_size      = 5,
		y_max           = 0,
		y_min           = -31,
		noise_threshold = 0.0,
		noise_params    = {
			offset = 0.5,
			scale = 0.2,
			spread = {x = 5, y = 5, z = 5},
			seed = 2316,
			octaves = 1,
			persist = 0.0
		},
	})
	
	-- Gravel

	minetest.register_ore({
		ore_type        = "blob",
		ore             = "default:gravel",
		wherein         = {"default:stone"},
		clust_scarcity  = 16 * 16 * 16,
		clust_size      = 5,
		y_max           = 31000,
		y_min           = -31000,
		noise_threshold = 0.0,
		noise_params    = {
			offset = 0.5,
			scale = 0.2,
			spread = {x = 5, y = 5, z = 5},
			seed = 766,
			octaves = 1,
			persist = 0.0
		},
	})
	
	-- Iron

	minetest.register_ore({
		ore_type       = "scatter",
		ore            = "default:stone_with_iron",
		wherein        = "default:stone",
		clust_scarcity = 9 * 9 * 9,
		clust_num_ores = 12,
		clust_size     = 3,
		y_max          = 31000,
		y_min          = 1025,
	})

	minetest.register_ore({
		ore_type       = "scatter",
		ore            = "default:stone_with_iron",
		wherein        = "default:stone",
		clust_scarcity = 7 * 7 * 7,
		clust_num_ores = 5,
		clust_size     = 3,
		y_max          = 0,
		y_min          = -31000,
	})

	minetest.register_ore({
		ore_type       = "scatter",
		ore            = "default:stone_with_iron",
		wherein        = "default:stone",
		clust_scarcity = 24 * 24 * 24,
		clust_num_ores = 27,
		clust_size     = 6,
		y_max          = -64,
		y_min          = -31000,
	})

	-- Copper

	minetest.register_ore({
		ore_type       = "scatter",
		ore            = "default:stone_with_copper",
		wherein        = "default:stone",
		clust_scarcity = 9 * 9 * 9,
		clust_num_ores = 5,
		clust_size     = 3,
		y_max          = 31000,
		y_min          = 1025,
	})

	minetest.register_ore({
		ore_type       = "scatter",
		ore            = "default:stone_with_copper",
		wherein        = "default:stone",
		clust_scarcity = 12 * 12 * 12,
		clust_num_ores = 4,
		clust_size     = 3,
		y_max          = -16,
		y_min          = -63,
	})

	minetest.register_ore({
		ore_type       = "scatter",
		ore            = "default:stone_with_copper",
		wherein        = "default:stone",
		clust_scarcity = 9 * 9 * 9,
		clust_num_ores = 5,
		clust_size     = 3,
		y_max          = -64,
		y_min          = -31000,
	})

	-- Tin

	minetest.register_ore({
		ore_type       = "scatter",
		ore            = "default:stone_with_tin",
		wherein        = "default:stone",
		clust_scarcity = 10 * 10 * 10,
		clust_num_ores = 5,
		clust_size     = 3,
		y_max          = 31000,
		y_min          = 1025,
	})

	minetest.register_ore({
		ore_type       = "scatter",
		ore            = "default:stone_with_tin",
		wherein        = "default:stone",
		clust_scarcity = 13 * 13 * 13,
		clust_num_ores = 4,
		clust_size     = 3,
		y_max          = -32,
		y_min          = -127,
	})

	minetest.register_ore({
		ore_type       = "scatter",
		ore            = "default:stone_with_tin",
		wherein        = "default:stone",
		clust_scarcity = 10 * 10 * 10,
		clust_num_ores = 5,
		clust_size     = 3,
		y_max          = -128,
		y_min          = -31000,
	})

	-- Gold

	minetest.register_ore({
		ore_type       = "scatter",
		ore            = "default:stone_with_gold",
		wherein        = "default:stone",
		clust_scarcity = 13 * 13 * 13,
		clust_num_ores = 5,
		clust_size     = 3,
		y_max          = 31000,
		y_min          = 1025,
	})

	minetest.register_ore({
		ore_type       = "scatter",
		ore            = "default:stone_with_gold",
		wherein        = "default:stone",
		clust_scarcity = 15 * 15 * 15,
		clust_num_ores = 3,
		clust_size     = 2,
		y_max          = -64,
		y_min          = -255,
	})

	minetest.register_ore({
		ore_type       = "scatter",
		ore            = "default:stone_with_gold",
		wherein        = "default:stone",
		clust_scarcity = 13 * 13 * 13,
		clust_num_ores = 5,
		clust_size     = 3,
		y_max          = -256,
		y_min          = -31000,
	})

	-- Mese crystal

	minetest.register_ore({
		ore_type       = "scatter",
		ore            = "default:stone_with_mese",
		wherein        = "default:stone",
		clust_scarcity = 14 * 14 * 14,
		clust_num_ores = 5,
		clust_size     = 3,
		y_max          = 31000,
		y_min          = 1025,
	})

	minetest.register_ore({
		ore_type       = "scatter",
		ore            = "default:stone_with_mese",
		wherein        = "default:stone",
		clust_scarcity = 18 * 18 * 18,
		clust_num_ores = 3,
		clust_size     = 2,
		y_max          = -64,
		y_min          = -255,
	})

	minetest.register_ore({
		ore_type       = "scatter",
		ore            = "default:stone_with_mese",
		wherein        = "default:stone",
		clust_scarcity = 14 * 14 * 14,
		clust_num_ores = 5,
		clust_size     = 3,
		y_max          = -256,
		y_min          = -31000,
	})

	-- Diamond

	minetest.register_ore({
		ore_type       = "scatter",
		ore            = "default:stone_with_diamond",
		wherein        = "default:stone",
		clust_scarcity = 15 * 15 * 15,
		clust_num_ores = 4,
		clust_size     = 3,
		y_max          = 31000,
		y_min          = 1025,
	})

	minetest.register_ore({
		ore_type       = "scatter",
		ore            = "default:stone_with_diamond",
		wherein        = "default:stone",
		clust_scarcity = 17 * 17 * 17,
		clust_num_ores = 4,
		clust_size     = 3,
		y_max          = -128,
		y_min          = -255,
	})

	minetest.register_ore({
		ore_type       = "scatter",
		ore            = "default:stone_with_diamond",
		wherein        = "default:stone",
		clust_scarcity = 15 * 15 * 15,
		clust_num_ores = 4,
		clust_size     = 3,
		y_max          = -256,
		y_min          = -31000,
	})

	-- Mese block

	minetest.register_ore({
		ore_type       = "scatter",
		ore            = "default:mese",
		wherein        = "default:stone",
		clust_scarcity = 36 * 36 * 36,
		clust_num_ores = 3,
		clust_size     = 2,
		y_max          = 31000,
		y_min          = 1025,
	})

	minetest.register_ore({
		ore_type       = "scatter",
		ore            = "default:mese",
		wherein        = "default:stone",
		clust_scarcity = 36 * 36 * 36,
		clust_num_ores = 3,
		clust_size     = 2,
		y_max          = -1024,
		y_min          = -31000,
	})
end





minetest.register_ore({
		ore_type        = "blob",
		ore             = "default:clay",
		wherein         = {"default:sand"},
		clust_scarcity  = 16 * 16 * 16,
		clust_size      = 5,
		y_max           = 0,
		y_min           = -15,
		noise_threshold = 0.0,
		noise_params    = {
			offset = 0.5,
			scale = 0.2,
			spread = {x = 5, y = 5, z = 5},
			seed = -316,
			octaves = 1,
			persist = 0.0
		},
	})

	-- Silver sand

	minetest.register_ore({
		ore_type        = "blob",
		ore             = "default:silver_sand",
		wherein         = {"default:stone"},
		clust_scarcity  = 16 * 16 * 16,
		clust_size      = 5,
		y_max           = 31000,
		y_min           = -31000,
		noise_threshold = 0.0,
		noise_params    = {
			offset = 0.5,
			scale = 0.2,
			spread = {x = 5, y = 5, z = 5},
			seed = 2316,
			octaves = 1,
			persist = 0.0
		},
		biomes = {"icesheet_ocean", "tundra", "tundra_beach", "tundra_ocean",
			"taiga", "taiga_ocean", "snowy_grassland", "snowy_grassland_ocean",
			"grassland", "grassland_dunes", "grassland_ocean", "coniferous_forest",
			"coniferous_forest_dunes", "coniferous_forest_ocean", "deciduous_forest",
			"deciduous_forest_shore", "deciduous_forest_ocean", "cold_desert",
			"cold_desert_ocean", "savanna", "savanna_shore", "savanna_ocean",
			"rainforest", "rainforest_swamp", "rainforest_ocean", "underground",
			"floatland_coniferous_forest", "floatland_coniferous_forest_ocean"}
	})

	
	
		-- Gravel

	minetest.register_ore({
		ore_type        = "blob",
		ore             = "default:gravel",
		wherein         = {"default:stone"},
		clust_scarcity  = 16 * 16 * 16,
		clust_size      = 5,
		y_max           = 31000,
		y_min           = -31000,
		noise_threshold = 0.0,
		noise_params    = {
			offset = 0.5,
			scale = 0.2,
			spread = {x = 5, y = 5, z = 5},
			seed = 766,
			octaves = 1,
			persist = 0.0
		},
		biomes = {"icesheet_ocean", "tundra", "tundra_beach", "tundra_ocean",
			"taiga", "taiga_ocean", "snowy_grassland", "snowy_grassland_ocean",
			"grassland", "grassland_dunes", "grassland_ocean", "coniferous_forest",
			"coniferous_forest_dunes", "coniferous_forest_ocean", "deciduous_forest",
			"deciduous_forest_shore", "deciduous_forest_ocean", "cold_desert",
			"cold_desert_ocean", "savanna", "savanna_shore", "savanna_ocean",
			"rainforest", "rainforest_swamp", "rainforest_ocean", "underground",
			"floatland_coniferous_forest", "floatland_coniferous_forest_ocean"}
	})
	
	
	
		-- Iron

	minetest.register_ore({
		ore_type       = "scatter",
		ore            = "default:stone_with_iron",
		wherein        = "default:stone",
		clust_scarcity = 9 * 9 * 9,
		clust_num_ores = 12,
		clust_size     = 3,
		y_max          = 31000,
		y_min          = 1025,
	})

	minetest.register_ore({
		ore_type       = "scatter",
		ore            = "default:stone_with_iron",
		wherein        = "default:stone",
		clust_scarcity = 7 * 7 * 7,
		clust_num_ores = 5,
		clust_size     = 3,
		y_max          = 0,
		y_min          = -127,
	})

	minetest.register_ore({
		ore_type       = "scatter",
		ore            = "default:stone_with_iron",
		wherein        = "default:stone",
		clust_scarcity = 12 * 12 * 12,
		clust_num_ores = 29,
		clust_size     = 5,
		y_max          = -128,
		y_min          = -31000,
	})

	-- Tin

	minetest.register_ore({
		ore_type       = "scatter",
		ore            = "default:stone_with_tin",
		wherein        = "default:stone",
		clust_scarcity = 10 * 10 * 10,
		clust_num_ores = 5,
		clust_size     = 3,
		y_max          = 31000,
		y_min          = 1025,
	})

	minetest.register_ore({
		ore_type       = "scatter",
		ore            = "default:stone_with_tin",
		wherein        = "default:stone",
		clust_scarcity = 13 * 13 * 13,
		clust_num_ores = 4,
		clust_size     = 3,
		y_max          = -128,
		y_min          = -255,
	})

	minetest.register_ore({
		ore_type       = "scatter",
		ore            = "default:stone_with_tin",
		wherein        = "default:stone",
		clust_scarcity = 10 * 10 * 10,
		clust_num_ores = 5,
		clust_size     = 3,
		y_max          = -256,
		y_min          = -31000,
	})

	-- Copper

	minetest.register_ore({
		ore_type       = "scatter",
		ore            = "default:stone_with_copper",
		wherein        = "default:stone",
		clust_scarcity = 9 * 9 * 9,
		clust_num_ores = 5,
		clust_size     = 3,
		y_max          = 31000,
		y_min          = 1025,
	})

	minetest.register_ore({
		ore_type       = "scatter",
		ore            = "default:stone_with_copper",
		wherein        = "default:stone",
		clust_scarcity = 12 * 12 * 12,
		clust_num_ores = 4,
		clust_size     = 3,
		y_max          = -128,
		y_min          = -255,
	})

	minetest.register_ore({
		ore_type       = "scatter",
		ore            = "default:stone_with_copper",
		wherein        = "default:stone",
		clust_scarcity = 9 * 9 * 9,
		clust_num_ores = 5,
		clust_size     = 3,
		y_max          = -256,
		y_min          = -31000,
	})

	-- Gold

	minetest.register_ore({
		ore_type       = "scatter",
		ore            = "default:stone_with_gold",
		wherein        = "default:stone",
		clust_scarcity = 13 * 13 * 13,
		clust_num_ores = 5,
		clust_size     = 3,
		y_max          = 31000,
		y_min          = 1025,
	})

	minetest.register_ore({
		ore_type       = "scatter",
		ore            = "default:stone_with_gold",
		wherein        = "default:stone",
		clust_scarcity = 15 * 15 * 15,
		clust_num_ores = 3,
		clust_size     = 2,
		y_max          = -256,
		y_min          = -1023,
	})

	minetest.register_ore({
		ore_type       = "scatter",
		ore            = "default:stone_with_gold",
		wherein        = "default:stone",
		clust_scarcity = 13 * 13 * 13,
		clust_num_ores = 5,
		clust_size     = 3,
		y_max          = -1024,
		y_min          = -31000,
	})

	-- Diamond

	minetest.register_ore({
		ore_type       = "scatter",
		ore            = "default:stone_with_diamond",
		wherein        = "default:stone",
		clust_scarcity = 15 * 15 * 15,
		clust_num_ores = 4,
		clust_size     = 3,
		y_max          = 31000,
		y_min          = 1025,
	})

	minetest.register_ore({
		ore_type       = "scatter",
		ore            = "default:stone_with_diamond",
		wherein        = "default:stone",
		clust_scarcity = 17 * 17 * 17,
		clust_num_ores = 4,
		clust_size     = 3,
		y_max          = -512,
		y_min          = -1023,
	})

	minetest.register_ore({
		ore_type       = "scatter",
		ore            = "default:stone_with_diamond",
		wherein        = "default:stone",
		clust_scarcity = 15 * 15 * 15,
		clust_num_ores = 4,
		clust_size     = 3,
		y_max          = -1024,
		y_min          = -31000,
	})

	-- Mese crystal

	minetest.register_ore({
		ore_type       = "scatter",
		ore            = "default:stone_with_mese",
		wherein        = "default:stone",
		clust_scarcity = 14 * 14 * 14,
		clust_num_ores = 5,
		clust_size     = 3,
		y_max          = 31000,
		y_min          = 1025,
	})

	minetest.register_ore({
		ore_type       = "scatter",
		ore            = "default:stone_with_mese",
		wherein        = "default:stone",
		clust_scarcity = 18 * 18 * 18,
		clust_num_ores = 3,
		clust_size     = 2,
		y_max          = -512,
		y_min          = -1023,
	})

	minetest.register_ore({
		ore_type       = "scatter",
		ore            = "default:stone_with_mese",
		wherein        = "default:stone",
		clust_scarcity = 14 * 14 * 14,
		clust_num_ores = 5,
		clust_size     = 3,
		y_max          = -1024,
		y_min          = -31000,
	})

	-- Mese block

	minetest.register_ore({
		ore_type       = "scatter",
		ore            = "default:mese",
		wherein        = "default:stone",
		clust_scarcity = 36 * 36 * 36,
		clust_num_ores = 3,
		clust_size     = 2,
		y_max          = 31000,
		y_min          = 1025,
	})

	minetest.register_ore({
		ore_type       = "scatter",
		ore            = "default:mese",
		wherein        = "default:stone",
		clust_scarcity = 36 * 36 * 36,
		clust_num_ores = 3,
		clust_size     = 2,
		y_max          = -1024,
		y_min          = -2047,
	})

	minetest.register_ore({
		ore_type       = "scatter",
		ore            = "default:mese",
		wherein        = "default:stone",
		clust_scarcity = 28 * 28 * 28,
		clust_num_ores = 5,
		clust_size     = 3,
		y_max          = -2048,
		y_min          = -31000,
	})
end


function default.register_decorations()

	-- Apple tree and log

	minetest.register_decoration({
		name = "default:apple_tree",
		deco_type = "schematic",
		place_on = {"default:dirt_with_grass"},
		sidelen = 16,
		noise_params = {
			offset = 0.036,
			scale = 0.022,
			spread = {x = 250, y = 250, z = 250},
			seed = 2,
			octaves = 3,
			persist = 0.66
		},
		biomes = {"deciduous_forest"},
		y_max = 31000,
		y_min = 1,
		schematic = minetest.get_modpath("default") .. "/schematics/apple_tree.mts",
		flags = "place_center_x, place_center_z",
		rotation = "random",
	})

	minetest.register_decoration({
		name = "default:apple_log",
		deco_type = "schematic",
		place_on = {"default:dirt_with_grass"},
		sidelen = 16,
		noise_params = {
			offset = 0.0018,
			scale = 0.0011,
			spread = {x = 250, y = 250, z = 250},
			seed = 2,
			octaves = 3,
			persist = 0.66
		},
		biomes = {"deciduous_forest"},
		y_max = 31000,
		y_min = 1,
		schematic = minetest.get_modpath("default") .. "/schematics/apple_log.mts",
		flags = "place_center_x",
		rotation = "random",
	})

	-- Emergent jungle tree
	-- Due to 32 node height, altitude is limited and prescence depends on chunksize

	local chunksize = tonumber(minetest.get_mapgen_setting("chunksize"))
	if chunksize >= 5 then
		minetest.register_decoration({
			name = "default:emergent_jungle_tree",
			deco_type = "schematic",
			place_on = {"default:dirt_with_rainforest_litter"},
			sidelen = 80,
			noise_params = {
				offset = 0.0,
				scale = 0.0025,
				spread = {x = 250, y = 250, z = 250},
				seed = 2685,
				octaves = 3,
				persist = 0.7
			},
			biomes = {"rainforest"},
			y_max = 32,
			y_min = 1,
			schematic = minetest.get_modpath("default") ..
					"/schematics/emergent_jungle_tree.mts",
			flags = "place_center_x, place_center_z",
			rotation = "random",
			place_offset_y = -4,
		})
	end

	-- Jungle tree and log

	minetest.register_decoration({
		name = "default:jungle_tree",
		deco_type = "schematic",
		place_on = {"default:dirt_with_rainforest_litter", "default:dirt"},
		sidelen = 80,
		fill_ratio = 0.1,
		biomes = {"rainforest", "rainforest_swamp"},
		y_max = 31000,
		y_min = -1,
		schematic = minetest.get_modpath("default") .. "/schematics/jungle_tree.mts",
		flags = "place_center_x, place_center_z",
		rotation = "random",
	})

	minetest.register_decoration({
		name = "default:jungle_log",
		deco_type = "schematic",
		place_on = {"default:dirt_with_rainforest_litter", "default:dirt"},
		sidelen = 80,
		fill_ratio = 0.005,
		biomes = {"rainforest", "rainforest_swamp"},
		y_max = 31000,
		y_min = 1,
		schematic = minetest.get_modpath("default") .. "/schematics/jungle_log.mts",
		flags = "place_center_x",
		rotation = "random",
	})

	-- Taiga and temperate coniferous forest pine tree, small pine tree and log

	minetest.register_decoration({
		name = "default:pine_tree",
		deco_type = "schematic",
		place_on = {"default:dirt_with_snow", "default:dirt_with_coniferous_litter"},
		sidelen = 16,
		noise_params = {
			offset = 0.010,
			scale = 0.048,
			spread = {x = 250, y = 250, z = 250},
			seed = 2,
			octaves = 3,
			persist = 0.66
		},
		biomes = {"taiga", "coniferous_forest", "floatland_coniferous_forest"},
		y_max = 31000,
		y_min = 2,
		schematic = minetest.get_modpath("default") .. "/schematics/pine_tree.mts",
		flags = "place_center_x, place_center_z",
	})

	minetest.register_decoration({
		name = "default:small_pine_tree",
		deco_type = "schematic",
		place_on = {"default:dirt_with_snow", "default:dirt_with_coniferous_litter"},
		sidelen = 16,
		noise_params = {
			offset = 0.010,
			scale = -0.048,
			spread = {x = 250, y = 250, z = 250},
			seed = 2,
			octaves = 3,
			persist = 0.66
		},
		biomes = {"taiga", "coniferous_forest", "floatland_coniferous_forest"},
		y_max = 31000,
		y_min = 2,
		schematic = minetest.get_modpath("default") .. "/schematics/small_pine_tree.mts",
		flags = "place_center_x, place_center_z",
	})

	minetest.register_decoration({
		name = "default:pine_log",
		deco_type = "schematic",
		place_on = {"default:dirt_with_snow", "default:dirt_with_coniferous_litter"},
		sidelen = 80,
		fill_ratio = 0.0018,
		biomes = {"taiga", "coniferous_forest", "floatland_coniferous_forest"},
		y_max = 31000,
		y_min = 1,
		schematic = minetest.get_modpath("default") .. "/schematics/pine_log.mts",
		flags = "place_center_x",
		rotation = "random",
	})

	-- Acacia tree and log

	minetest.register_decoration({
		name = "default:acacia_tree",
		deco_type = "schematic",
		place_on = {"default:dirt_with_dry_grass"},
		sidelen = 16,
		noise_params = {
			offset = 0,
			scale = 0.002,
			spread = {x = 250, y = 250, z = 250},
			seed = 2,
			octaves = 3,
			persist = 0.66
		},
		biomes = {"savanna"},
		y_max = 31000,
		y_min = 1,
		schematic = minetest.get_modpath("default") .. "/schematics/acacia_tree.mts",
		flags = "place_center_x, place_center_z",
		rotation = "random",
	})

	minetest.register_decoration({
		name = "default:acacia_log",
		deco_type = "schematic",
		place_on = {"default:dirt_with_dry_grass"},
		sidelen = 16,
		noise_params = {
			offset = 0,
			scale = 0.001,
			spread = {x = 250, y = 250, z = 250},
			seed = 2,
			octaves = 3,
			persist = 0.66
		},
		biomes = {"savanna"},
		y_max = 31000,
		y_min = 1,
		schematic = minetest.get_modpath("default") .. "/schematics/acacia_log.mts",
		flags = "place_center_x",
		rotation = "random",
	})

	-- Aspen tree and log

	minetest.register_decoration({
		name = "default:aspen_tree",
		deco_type = "schematic",
		place_on = {"default:dirt_with_grass"},
		sidelen = 16,
		noise_params = {
			offset = 0.0,
			scale = -0.015,
			spread = {x = 250, y = 250, z = 250},
			seed = 2,
			octaves = 3,
			persist = 0.66
		},
		biomes = {"deciduous_forest"},
		y_max = 31000,
		y_min = 1,
		schematic = minetest.get_modpath("default") .. "/schematics/aspen_tree.mts",
		flags = "place_center_x, place_center_z",
	})

	minetest.register_decoration({
		name = "default:aspen_log",
		deco_type = "schematic",
		place_on = {"default:dirt_with_grass"},
		sidelen = 16,
		noise_params = {
			offset = 0.0,
			scale = -0.0008,
			spread = {x = 250, y = 250, z = 250},
			seed = 2,
			octaves = 3,
			persist = 0.66
		},
		biomes = {"deciduous_forest"},
		y_max = 31000,
		y_min = 1,
		schematic = minetest.get_modpath("default") .. "/schematics/aspen_log.mts",
		flags = "place_center_x",
		rotation = "random",
	})

	-- Large cactus

	minetest.register_decoration({
		name = "default:large_cactus",
		deco_type = "schematic",
		place_on = {"default:desert_sand"},
		sidelen = 16,
		noise_params = {
			offset = -0.0003,
			scale = 0.0009,
			spread = {x = 200, y = 200, z = 200},
			seed = 230,
			octaves = 3,
			persist = 0.6
		},
		biomes = {"desert"},
		y_max = 31000,
		y_min = 5,
		schematic = minetest.get_modpath("default") .. "/schematics/large_cactus.mts",
		flags = "place_center_x",
		rotation = "random",
	})

	-- Cactus

	minetest.register_decoration({
		name = "default:cactus",
		deco_type = "simple",
		place_on = {"default:desert_sand"},
		sidelen = 16,
		noise_params = {
			offset = -0.0003,
			scale = 0.0009,
			spread = {x = 200, y = 200, z = 200},
			seed = 230,
			octaves = 3,
			persist = 0.6
		},
		biomes = {"desert"},
		y_max = 31000,
		y_min = 5,
		decoration = "default:cactus",
		height = 2,
		height_max = 5,
	})

	-- Papyrus

	minetest.register_decoration({
		name = "default:papyrus",
		deco_type = "schematic",
		place_on = {"default:dirt"},
		sidelen = 16,
		noise_params = {
			offset = -0.3,
			scale = 0.7,
			spread = {x = 200, y = 200, z = 200},
			seed = 354,
			octaves = 3,
			persist = 0.7
		},
		biomes = {"savanna_shore"},
		y_max = 0,
		y_min = 0,
		schematic = minetest.get_modpath("default") .. "/schematics/papyrus.mts",
	})

	-- Bush

	minetest.register_decoration({
		name = "default:bush",
		deco_type = "schematic",
		place_on = {"default:dirt_with_grass", "default:dirt_with_snow"},
		sidelen = 16,
		noise_params = {
			offset = -0.004,
			scale = 0.01,
			spread = {x = 100, y = 100, z = 100},
			seed = 137,
			octaves = 3,
			persist = 0.7,
		},
		biomes = {"snowy_grassland", "grassland", "deciduous_forest",
			"floatland_grassland"},
		y_max = 31000,
		y_min = 1,
		schematic = minetest.get_modpath("default") .. "/schematics/bush.mts",
		flags = "place_center_x, place_center_z",
	})

	-- Acacia bush

	minetest.register_decoration({
		name = "default:acacia_bush",
		deco_type = "schematic",
		place_on = {"default:dirt_with_dry_grass"},
		sidelen = 16,
		noise_params = {
			offset = -0.004,
			scale = 0.01,
			spread = {x = 100, y = 100, z = 100},
			seed = 90155,
			octaves = 3,
			persist = 0.7,
		},
		biomes = {"savanna"},
		y_max = 31000,
		y_min = 1,
		schematic = minetest.get_modpath("default") .. "/schematics/acacia_bush.mts",
		flags = "place_center_x, place_center_z",
	})

	-- Grasses

	register_grass_decoration(-0.03,  0.09,  5)
	register_grass_decoration(-0.015, 0.075, 4)
	register_grass_decoration(0,      0.06,  3)
	register_grass_decoration(0.015,  0.045, 2)
	register_grass_decoration(0.03,   0.03,  1)

	-- Dry grasses

	register_dry_grass_decoration(0.01, 0.05,  5)
	register_dry_grass_decoration(0.03, 0.03,  4)
	register_dry_grass_decoration(0.05, 0.01,  3)
	register_dry_grass_decoration(0.07, -0.01, 2)
	register_dry_grass_decoration(0.09, -0.03, 1)

	-- Ferns

	register_fern_decoration(14936, 3)
	register_fern_decoration(801,   2)
	register_fern_decoration(5,     1)

	-- Junglegrass

	minetest.register_decoration({
		name = "default:junglegrass",
		deco_type = "simple",
		place_on = {"default:dirt_with_rainforest_litter"},
		sidelen = 80,
		fill_ratio = 0.1,
		biomes = {"rainforest"},
		y_max = 31000,
		y_min = 1,
		decoration = "default:junglegrass",
	})

	-- Dry shrub

	minetest.register_decoration({
		name = "default:dry_shrub",
		deco_type = "simple",
		place_on = {"default:desert_sand",
			"default:sand", "default:silver_sand"},
		sidelen = 16,
		noise_params = {
			offset = 0,
			scale = 0.02,
			spread = {x = 200, y = 200, z = 200},
			seed = 329,
			octaves = 3,
			persist = 0.6
		},
		biomes = {"desert", "sandstone_desert", "cold_desert"},
		y_max = 31000,
		y_min = 2,
		decoration = "default:dry_shrub",
		param2 = 4,
	})

	-- Marram grass

	minetest.register_decoration({
		name = "default:marram_grass",
		deco_type = "simple",
		place_on = {"default:sand"},
		sidelen = 4,
		noise_params = {
			offset = -0.4,
			scale = 3.0,
			spread = {x = 16, y = 16, z = 16},
			seed = 513337,
			octaves = 1,
			persist = 0.5,
			flags = "absvalue"
		},
		biomes = {"coniferous_forest_dunes", "grassland_dunes"},
		y_max = 5,
		y_min = 4,
		decoration = {
			"default:marram_grass_1",
			"default:marram_grass_2",
			"default:marram_grass_3",
		},
	})

	-- Coral reef

	minetest.register_decoration({
		name = "default:corals",
		deco_type = "schematic",
		place_on = {"default:sand"},
		noise_params = {
			offset = -0.15,
			scale = 0.1,
			spread = {x = 100, y = 100, z = 100},
			seed = 7013,
			octaves = 3,
			persist = 1,
		},
		biomes = {
			"desert_ocean",
			"savanna_ocean",
			"rainforest_ocean",
		},
		y_max = -2,
		y_min = -8,
		schematic = minetest.get_modpath("default") .. "/schematics/corals.mts",
		flags = "place_center_x, place_center_z",
		rotation = "random",
	})

	-- Kelp

	minetest.register_decoration({
		name = "default:kelp",
		deco_type = "simple",
		place_on = {"default:sand"},
		place_offset_y = -1,
		sidelen = 16,
		noise_params = {
			offset = -0.04,
			scale = 0.1,
			spread = {x = 200, y = 200, z = 200},
			seed = 87112,
			octaves = 3,
			persist = 0.7
		},
		biomes = {
			"taiga_ocean",
			"snowy_grassland_ocean",
			"grassland_ocean",
			"coniferous_forest_ocean",
			"deciduous_forest_ocean",
			"sandstone_desert_ocean",
			"cold_desert_ocean"},
		y_max = -5,
		y_min = -10,
		flags = "force_placement",
		decoration = "default:sand_with_kelp",
		param2 = 48,
		param2_max = 96,
	})
end