-- register decoration helper

local function register_decoration(enabled, def)

	if enabled ~= 1 then return end

	def.sidelen = def.sidelen or 80 -- some handy defaults
	def.deco_type = "simple"
	def.y_min = def.y_min or 1
	def.y_max = def.y_max or 100

	minetest.register_decoration(def)
end

-- wild cotton added in 5.3.0

register_decoration(1, {
	name = "farming:cotton_wild",
	place_on = {"default:dry_dirt_with_dry_grass"},
	sidelen = 16,
	noise_params = {
		offset = -0.1, scale = 0.1, spread = {x = 50, y = 50, z = 50},
		seed = 4242, octaves = 3, persist = 0.7
	},
	biomes = {"savanna"},
	decoration = "farming:cotton_wild"})

-- water pools in swamp areas

register_decoration(1, {
	place_on = {"default:dirt_with_grass"},
	sidelen = 4,
	place_offset_y = -1,
	fill_ratio = 0.01,
	biomes = {"swamp"},
	y_min = 1, y_max = 2,
	flags = "force_placement",
	decoration = "default:water_source",
	spawn_by = "default:dirt_with_grass", num_spawn_by = 8})

register_decoration(1, {
	place_on = {"default:dirt_with_grass"},
	sidelen = 4,
	place_offset_y = -1,
	fill_ratio = 0.1,
	biomes = {"swamp"},
	y_min = 1, y_max = 2,
	flags = "force_placement",
	decoration = "default:water_source",
	spawn_by = {"default:dirt_with_grass", "default:water_source"}, num_spawn_by = 8})

-- dry dirt patches

register_decoration(1, {
	place_on = {"default:dry_dirt_with_dry_grass"},
	sidelen = 4,
	noise_params = {
		offset = -1.5, scale = -1.5, spread = {x = 200, y = 200, z = 200},
		seed = 329, octaves = 4, persist = 1.0
	},
	biomes = {"savanna"},
	decoration = "default:dry_dirt",
	place_offset_y = -1,
	flags = "force_placement"
})

-- firethorn shrub

register_decoration(ethereal.glacier, {
	place_on = "default:snowblock",
	fill_ratio = 0.001,
	biomes = {"glacier"},
	y_min = 1, y_max = 30,
	decoration = "ethereal:firethorn"})

-- scorched tree

register_decoration(ethereal.plains, {
	place_on = "ethereal:dry_dirt",
	fill_ratio = 0.006,
	biomes = {"plains"},
	decoration = "ethereal:scorched_tree", height_max = 6})

-- dry shrub

register_decoration(ethereal.plains, {
	place_on = {"ethereal:dry_dirt"},
	fill_ratio = 0.015,
	biomes = {"plains"},
	decoration = "default:dry_shrub"})

register_decoration(ethereal.grassy, {
	place_on = {"default:sand"},
	fill_ratio = 0.015,
	biomes = {"deciduous_forest_ocean"},
	decoration = "default:dry_shrub"})

register_decoration(ethereal.desert, {
	place_on = {"default:desert_sand"},
	fill_ratio = 0.015,
	biomes = {"desert"},
	decoration = "default:dry_shrub"})

register_decoration(ethereal.sandstone, {
	place_on = {"default:sandstone"},
	fill_ratio = 0.015,
	biomes = {"sandstone_desert"},
	decoration = "default:dry_shrub"})

register_decoration(ethereal.mesa, {
	place_on = {"default:dirt_with_dry_grass"},
	fill_ratio = 0.015,
	biomes = {"mesa"},
	decoration = "default:dry_shrub"})

-- dry grass

register_decoration(ethereal.savanna, {
	place_on = {"default:dry_dirt_with_dry_grass", "default:dirt_with_dry_grass"},
	fill_ratio = 0.25,
	biomes = {"savanna"},
	decoration = {"default:dry_grass_2", "default:dry_grass_3", "default:dry_grass_4",
			"default:dry_grass_5"}})

register_decoration(ethereal.mesa, {
	place_on = {"default:dirt_with_dry_grass"},
	fill_ratio = 0.10,
	biomes = {"mesa"},
	decoration = {"default:dry_grass_2", "default:dry_grass_3", "default:dry_grass_4",
			"default:dry_grass_5"}})

register_decoration(ethereal.caves, {
	place_on = {"default:desert_stone"},
	fill_ratio = 0.005,
	biomes = {"caves"},
	y_min = 5, y_max = 42,
	decoration = {"default:dry_grass_2", "default:dry_grass_3", "default:dry_shrub"}})

-- flowers & strawberry

register_decoration((ethereal.grassy or ethereal.grassytwo), {
	place_on = {"default:dirt_with_grass"},
	fill_ratio = 0.025,
	biomes = {"deciduous_forest", "grassytwo"},
	decoration = {"flowers:dandelion_white", "flowers:dandelion_yellow",
			"flowers:geranium", "flowers:rose", "flowers:tulip",
			"flowers:viola", "ethereal:strawberry_7"}})

-- prairie flowers & strawberry

register_decoration(ethereal.prairie, {
	place_on = {"ethereal:prairie_dirt"},
	fill_ratio = 0.035,
	biomes = {"prairie"},
	decoration = {"flowers:dandelion_white", "flowers:dandelion_yellow",
			"flowers:geranium", "flowers:rose", "flowers:tulip",
			"flowers:viola", "ethereal:strawberry_7", "flowers:chrysanthemum_green",
			"flowers:tulip_black"}})

-- crystal spike & grass

register_decoration(ethereal.frost, {
	place_on = {"ethereal:crystal_dirt"},
	fill_ratio = 0.02,
	biomes = {"frost", "frost_floatland"},
	y_min = 1, y_max = 1750,
	decoration = {"ethereal:crystal_spike", "ethereal:crystalgrass"}})

-- red shrub

register_decoration(ethereal.fiery, {
	place_on = {"ethereal:fiery_dirt"},
	fill_ratio = 0.10,
	biomes = {"fiery"},
	decoration = "ethereal:dry_shrub"})

-- snowy grass

register_decoration((ethereal.grayness or ethereal.snowy), {
	place_on = {"ethereal:gray_dirt", "ethereal:cold_dirt",
			"default:dirt_with_coniferous_litter"},
	fill_ratio = 0.05,
	biomes = {"grayness", "coniferous_forest"},
	decoration = "ethereal:snowygrass"})

-- cactus

register_decoration(ethereal.sandstone, {
	place_on = {"default:sandstone"},
	fill_ratio = 0.002,
	biomes = {"sandstone_desert"},
	decoration = "default:cactus", height_max = 3})

register_decoration(ethereal.desert, {
	place_on = {"default:desert_sand"},
	fill_ratio = 0.005,
	biomes = {"desert"},
	decoration = "default:cactus", height_max = 4})

-- spore grass

register_decoration(ethereal.mushroom, {
	place_on = {"ethereal:mushroom_dirt"},
	fill_ratio = 0.1,
	biomes = {"mushroom"},
	decoration = "ethereal:spore_grass"})

-- red & brown mushroom

register_decoration(1, {
	place_on = {"default:dirt_with_rainforest_litter", "default:dirt_with_grass",
			"ethereal:prairie_dirt", "ethereal:mushroom_dirt"},
	sidelen = 16,
	fill_ratio = 0.01,
	biomes = {"junglee", "deciduous_forest", "grassytwo", "prairie", "swamp", "mushroom"},
	decoration = {"flowers:mushroom_brown", "flowers:mushroom_red"}})

-- jungle grass

register_decoration(ethereal.junglee, {
	place_on = {"ethereal:jungle_dirt", "default:dirt_with_rainforest_litter"},
	fill_ratio = 0.1,
	biomes = {"junglee"},
	decoration = "default:junglegrass"})

register_decoration(ethereal.jumble, {
	place_on = {"default:dirt_with_grass"},
	fill_ratio = 0.15,
	biomes = {"jumble"},
	decoration = "default:junglegrass"})

register_decoration(ethereal.swamp, {
	place_on = {"default:dirt_with_grass"},
	fill_ratio = 0.25,
	biomes = {"swamp"},
	decoration = "default:junglegrass"})

-- grass

register_decoration(1, {
	place_on = {"default:dirt_with_grass", "default:dirt_with_rainforest_litter",
		"ethereal:prairie_dirt", "ethereal:grove_dirt", "ethereal:bamboo_dirt"},
	fill_ratio = 0.35,
	biomes = {"deciduous_forest", "grassytwo", "jumble", "junglee", "grove", "prairie",
			"mediterranean", "bamboo", "sakura"},
	decoration = {"default:grass_2", "default:grass_3", "default:grass_4",
			"default:grass_5"}})

register_decoration(1, {
	place_on = {"default:dirt_with_grass"},
	fill_ratio = 0.35,
	biomes = {"grassland", "swamp"},
	decoration = {"default:grass_3", "default:grass_4"}})

-- lilac

register_decoration(ethereal.sakura, {
	place_on = {"ethereal:bamboo_dirt"},
	fill_ratio = 0.25,
	biomes = {"sakura"},
	decoration = "ethereal:lilac"})

-- marram grass

register_decoration(ethereal.sandclay, {
	place_on = {"default:sand"},
	fill_ratio = 0.25,
	biomes = {"sandclay"},
	decoration = {"default:marram_grass_1", "default:marram_grass_2",
			"default:marram_grass_3"}})

-- ferns

register_decoration(ethereal.grove, {
	place_on = {"ethereal:grove_dirt"},
	fill_ratio = 0.2,
	biomes = {"grove"},
	decoration = "ethereal:fern"})

register_decoration(ethereal.swamp, {
	place_on = {"default:dirt_with_grass"},
	fill_ratio = 0.1,
	biomes = {"swamp"},
	decoration = "ethereal:fern"})

register_decoration(ethereal.frost, { -- chance of something edible so high up
	place_on = {"ethereal:crystal_dirt"},
	fill_ratio = 0.001,
	y_min = 1025, y_max = 1750,
	biomes = {"frost_floatland"},
	decoration = "ethereal:fern"})

-- snow

register_decoration(ethereal.snowy, {
	place_on = {"default:dirt_with_coniferous_litter"},
	fill_ratio = 0.8,
	y_min = 20, y_max = 40,
	biomes = {"coniferous_forest"},
	decoration = "default:snow"})

register_decoration(ethereal.alpine, {
	place_on = {"default:dirt_with_snow"},
	fill_ratio = 0.8,
	y_min = 40, y_max = 140,
	biomes = {"taiga"},
	decoration = "default:snow"})

-- wild onion and setting

local abundant = minetest.settings:get_bool("ethereal.abundant_onions") ~= false

register_decoration(1, {
	place_on = {"default:dirt_with_grass", "ethereal:prairie_dirt"},
	fill_ratio = (abundant and 0.025 or 0.005),
	biomes = {"deciduous_forest", "grassytwo", "jumble", "prairie"},
	decoration = "ethereal:onion_4"})

-- papyrus

register_decoration((ethereal.grassy or ethereal.junglee or ethereal.swamp), {
	place_on = {"default:dirt_with_grass", "default:dirt_with_rainforest_litter"},
	fill_ratio = 0.1,
	y_min = 1, y_max = 1,
	biomes = {"deciduous_forest", "junglee", "swamp"},
	decoration = "default:papyrus", height_max = 4,
	spawn_by = "default:water_source", num_spawn_by = 1})

--= Farming Redo plants

if farming and farming.mod and farming.mod == "redo" then

print ("[MOD] Ethereal - Farming Redo detected")

-- potato

register_decoration(ethereal.junglee, {
	place_on = {"default:dirt_with_rainforest_litter"},
	fill_ratio = 0.002,
	biomes = {"junglee"},
	decoration = "farming:potato_3"})

-- carrot, cucumber, potato, tomato, corn, coffee, raspberry, rhubarb

register_decoration(ethereal.grassytwo, {
	place_on = {"default:dirt_with_grass"},
	fill_ratio = 0.002,
	biomes = {"grassytwo"},
	decoration = {"farming:carrot_7", "farming:cucumber_4", "farming:potato_3",
			"farming:vanilla_7", "farming:tomato_7", "farming:corn_8", "farming:coffee_5",
			"farming:blackberry_4", "farming:raspberry_4", "farming:rhubarb_3",
			"farming:blueberry_4", "farming:cabbage_6", "farming:lettuce_5",
			"farming:sunflower_8", "farming:asparagus_4"}})

register_decoration(ethereal.grassy, {
	place_on = {"default:dirt_with_grass"},
	fill_ratio = 0.002,
	biomes = {"grassytwo"},
	decoration = {"farming:carrot_7", "farming:cucumber_4", "farming:potato_3",
			"farming:vanilla_7", "farming:tomato_7", "farming:corn_8", "farming:coffee_5",
			"farming:blackberry_4", "farming:raspberry_4", "farming:rhubarb_3",
			"farming:blueberry_4", "farming:cabbage_6", "farming:lettuce_5",
			"farming:sunflower_8", "farming:eggplant_3"}})

register_decoration(ethereal.jumble, {
	place_on = {"default:dirt_with_grass"},
	fill_ratio = 0.002,
	biomes = {"jumble"},
	decoration = {"farming:carrot_7", "farming:cucumber_4", "farming:potato_3",
			"farming:vanilla_7", "farming:tomato_7", "farming:corn_8", "farming:coffee_5",
			"farming:blackberry_4", "farming:raspberry_4", "farming:rhubarb_3",
			"farming:blueberry_4", "farming:cabbage_6", "farming:lettuce_5",
			"farming:spinage_3"}})

register_decoration(ethereal.prairie, {
	place_on = {"ethereal:prairie_dirt"},
	fill_ratio = 0.025,
	biomes = {"prairie"},
	decoration = {"farming:carrot_7", "farming:cucumber_4", "farming:potato_3",
			"farming:parsley_3", "farming:tomato_7", "farming:corn_8", "farming:coffee_5",
			"farming:blackberry_4", "farming:raspberry_4", "farming:rhubarb_3",
			"farming:blueberry_4", "farming:pea_5", "farming:beetroot_5",
			"farming:sunflower_8"}})

register_decoration(ethereal.mediterranean, {
	place_on = {"ethereal:grove_dirt"},
	fill_ratio = 0.002,
	biomes = {"mediterranean"},
	decoration = "farming:parsley_3"})

-- melon and pumpkin

register_decoration(1, {
	place_on = {"default:dirt_with_grass", "default:dirt_with_rainforest_litter"},
	fill_ratio = 0.001,
	y_min = 1, y_max = 1,
	biomes = {"junglee", "deciduous_forest", "grassytwo", "jumble"},
	decoration = {"farming:melon_8", "farming:pumpkin_8"},
	spawn_by = "default:water_source", num_spawn_by = 1})

-- mint

register_decoration(1, {
	place_on = {"default:dirt_with_grass", "default:dirt_with_coniferous_litter",
			"ethereal:bamboo_dirt"},
	fill_ratio = 0.005,
	y_min = 1, y_max = 75,
	decoration = "farming:mint_4",
	spawn_by = {"group:water", "group:sand"}, num_spawn_by = 1})

-- green beans

register_decoration(ethereal.grassytwo, {
	place_on = {"default:dirt_with_grass"},
	fill_ratio = 0.001,
	biomes = {"grassytwo"},
	decoration = "farming:beanbush"})

-- grape bushel

register_decoration((ethereal.grassy or ethereal.grassytwo or ethereal.prairie), {
	place_on = {"default:dirt_with_grass", "ethereal:prairie_dirt"},
	fill_ratio = 0.001,
	biomes = {"grassy", "grassytwo", "prairie"},
	decoration = "farming:grapebush"})

-- chili, garlic, pepper, onion, hemp, soy, ginger

register_decoration(1, {
	place_on = {"default:dirt_with_grass", "ethereal:prairie_dirt",
			"default:dirt_with_rainforest_litter"},
	sidelen = 16,
	noise_params = {
		offset = 0, scale = 0.002, spread = {x = 100, y = 100, z = 100},
		seed = 760, octaves = 3, persist = 0.6
	},
	y_min = 5, y_max = 35,
	decoration = {
		"farming:chili_8", "farming:garlic_5", "farming:pepper_5", "farming:pepper_6",
		"farming:onion_5", "farming:hemp_7", "farming:pepper_7", "farming:soy_5",
		"farming:ginger"},
	spawn_by = "group:tree", num_spawn_by = 1})

-- pineapple,soy

register_decoration(1, {
	place_on = {"default:dirt_with_dry_grass"},
	sidelen = 16,
	noise_params = {
		offset = 0, scale = 0.002, spread = {x = 100, y = 100, z = 100},
		seed = 917, octaves = 3, persist = 0.6
	},
	y_min = 18, y_max = 30,
	decoration = {"farming:pineapple_8", "farming:soy_5"}})

-- artichoke

register_decoration(1, {
	place_on = {"ethereal:grove_dirt"},
	sidelen = 16,
	noise_params = {
		offset = 0, scale = 0.002, spread = {x = 100, y = 100, z = 100},
		seed = 448, octaves = 3, persist = 0.6
	},
	y_min = 15, y_max = 40,
	decoration = {"farming:artichoke_5"},
	spawn_by = "group:tree", num_spawn_by = 1})

end -- end farming

-- new flowers from baked clay mod

if minetest.get_modpath("bakedclay") then

register_decoration(1, {
	place_on = {"ethereal:prairie_dirt", "default:dirt_with_grass", "ethereal:grove_dirt"},
	sidelen = 16,
	noise_params = {
		offset = 0, scale = 0.004, spread = {x = 100, y = 100, z = 100},
		seed = 7133, octaves = 3, persist = 0.6
	},
	y_min = 10, y_max = 90,
	decoration = "bakedclay:delphinium"})

register_decoration(1, {
	place_on = {"ethereal:prairie_dirt", "default:dirt_with_grass",
			"ethereal:grove_dirt", "ethereal:bamboo_dirt"},
	sidelen = 16,
	noise_params = {
		offset = 0, scale = 0.004, spread = {x = 100, y = 100, z = 100},
		seed = 7134, octaves = 3, persist = 0.6
	},
	y_min = 15, y_max = 90,
	decoration = "bakedclay:thistle"})

register_decoration(1, {
	place_on = {"ethereal:jungle_dirt", "default:dirt_with_rainforest_litter"},
	sidelen = 16,
	noise_params = {
		offset = 0, scale = 0.01, spread = {x = 100, y = 100, z = 100},
		seed = 7135, octaves = 3, persist = 0.6
	},
	y_min = 1, y_max = 90,
	decoration = "bakedclay:lazarus",
	spawn_by = "default:jungletree", num_spawn_by = 1})

register_decoration(1, {
	place_on = {"default:dirt_with_grass", "default:sand"},
	sidelen = 16,
	noise_params = {
		offset = 0, scale = 0.009, spread = {x = 100, y = 100, z = 100},
		seed = 7136, octaves = 3, persist = 0.6
	},
	y_min = 1, y_max = 15,
	decoration = "bakedclay:mannagrass",
	spawn_by = "group:water", num_spawn_by = 1})
end

-- blue agave from wine mod

if minetest.get_modpath("wine") then

	register_decoration(ethereal.desert, {
		place_on = {"default:desert_sand"},
		sidelen = 16,
		fill_ratio = 0.001,
		biomes = {"desert"},
		decoration = {"wine:blue_agave"}})
end

-- ferns

local function register_fern_decoration(seed, length)

	register_decoration(ethereal.snowy, {
		name = "default:fern_" .. length,
		place_on = {"ethereal:cold_dirt", "default:dirt_with_coniferous_litter"},
		sidelen = 16,
		noise_params = {
			offset = 0, scale = 0.2, spread = {x = 100, y = 100, z = 100},
			seed = seed, octaves = 3, persist = 0.7
		},
		y_min = 6, y_max = 100,
		decoration = "default:fern_" .. length})
end

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

-- Tundra moss

register_decoration(ethereal.tundra, {
	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_min = 2, y_max = 50,
	decoration = "default:permafrost_with_moss",
	place_offset_y = -1,
	flags = "force_placement"})

-- Tundra patchy snow

register_decoration(ethereal.tundra, {
	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_min = 1, y_max = 50,
	decoration = "default:snow"})

-- butterflies mod

if minetest.get_modpath("butterflies") then

	register_decoration(1, {
		name = "butterflies:butterfly",
		place_on = {"default:dirt_with_grass", "ethereal:prairie_dirt"},
		place_offset_y = 2,
		fill_ratio = 0.005,
		biomes = {"deciduous_forest", "grassytwo", "prairie", "jumble"},
		y_min = 1, y_max = 200,
		decoration = {
			"butterflies:butterfly_white",
			"butterflies:butterfly_red",
			"butterflies:butterfly_violet"
		},
		spawn_by = "group:flower", num_spawn_by = 1})

	-- restart butterfly timers
	minetest.register_lbm({
		name = ":butterflies:butterfly_timer",
		nodenames = {
			"butterflies:butterfly_white", "butterflies:butterfly_red",
			"butterflies:butterfly_violet"
		},
		run_at_every_load = true,

		action = function(pos) minetest.get_node_timer(pos):start(5) end
	})
end

-- fireflies mod

if minetest.get_modpath("fireflies") then

	register_decoration(1, {
		name = "fireflies:firefly_low",
		place_on = {"default:dirt_with_grass", "default:dirt_with_coniferous_litter",
				"default:dirt_with_rainforest_litter", "default:dirt",
				"ethereal:cold_dirt", "prairie"},
		place_offset_y = 2,
		fill_ratio = 0.0005,
		biomes = {"deciduous_forest", "grassytwo", "coniferous_forest", "junglee",
				"swamp"},
		y_min = -1, y_max = 200,
		decoration = "fireflies:hidden_firefly"})

	-- restart firefly timers
	minetest.register_lbm({
		name = ":fireflies:firefly_timer",
		nodenames = {"fireflies:firefly", "fireflies:hidden_firefly"},
		run_at_every_load = true,

		action = function(pos) minetest.get_node_timer(pos):start(5) end
	})
end

-- Coral Reef

register_decoration(1, {
	name = "default:corals",
	place_on = {"default:sand"},
	place_offset_y = -1,
	sidelen = 4,
	noise_params = {
		offset = -4, scale = 4, spread = {x = 50, y = 50, z = 50},
		seed = 7013, octaves = 3, persist = 0.7,
	},
	biomes = {"desert_ocean", "savanna_ocean", "junglee_ocean"},
	y_min = -8, y_max = -2,
	flags = "force_placement",
	decoration = {"default:coral_green", "default:coral_pink", "default:coral_cyan",
			"default:coral_brown", "default:coral_orange", "default:coral_skeleton"}})

-- Kelp

register_decoration(1, {
	name = "default:kelp",
	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 = {"frost_ocean", "deciduous_forest_ocean", "sandstone_ocean", "swamp_ocean"},
	y_min = -10, y_max = -5,
	flags = "force_placement",
	decoration = "default:sand_with_kelp",
	param2 = 48, param2_max = 96})

-- illumishrooms using underground decoration placement

local function add_illumishroom(low, high, nodename)

	register_decoration(1, {
		place_on = {"default:stone_with_coal"},
		sidelen = 16,
		fill_ratio = 0.5,
		y_min = low, y_max = high,
		flags = "force_placement, all_floors",
		decoration = nodename})
end

add_illumishroom(-1000, -30, "ethereal:illumishroom")
add_illumishroom(-2000, -1000, "ethereal:illumishroom2")
add_illumishroom(-3000, -2000, "ethereal:illumishroom3")