-- mods/default/nodes.lua

-- support for MT game translation.
local S = default.get_translator

--[[ Node name convention:

Although many node names are in combined-word form, the required form for new
node names is words separated by underscores. If both forms are used in written
language (for example pinewood and pine wood) the underscore form should be used.

--]]


--[[ Index:

Stone
-----
(1. Material 2. Cobble variant 3. Brick variant 4. Modified forms)

default:stone
default:cobble
default:stonebrick
default:stone_block
default:mossycobble

default:desert_stone
default:desert_cobble
default:desert_stonebrick
default:desert_stone_block

default:sandstone
default:sandstonebrick
default:sandstone_block
default:desert_sandstone
default:desert_sandstone_brick
default:desert_sandstone_block
default:silver_sandstone
default:silver_sandstone_brick
default:silver_sandstone_block

default:obsidian
default:obsidianbrick
default:obsidian_block

Soft / Non-Stone
----------------
(1. Material 2. Modified forms)

default:dirt
default:dirt_with_grass
default:dirt_with_grass_footsteps
default:dirt_with_dry_grass
default:dirt_with_snow
default:dirt_with_rainforest_litter
default:dirt_with_coniferous_litter
default:dry_dirt
default:dry_dirt_with_dry_grass

default:permafrost
default:permafrost_with_stones
default:permafrost_with_moss

default:sand
default:desert_sand
default:silver_sand

default:gravel

default:clay

default:snow
default:snowblock
default:ice
default:cave_ice

Trees
-----
(1. Trunk 2. Fabricated trunk 3. Leaves 4. Sapling 5. Fruits)

default:tree
default:wood
default:leaves
default:sapling
default:apple

default:jungletree
default:junglewood
default:jungleleaves
default:junglesapling
default:emergent_jungle_sapling

default:pine_tree
default:pine_wood
default:pine_needles
default:pine_sapling

default:acacia_tree
default:acacia_wood
default:acacia_leaves
default:acacia_sapling

default:aspen_tree
default:aspen_wood
default:aspen_leaves
default:aspen_sapling

Ores
----
(1. In stone 2. Blocks)

default:stone_with_coal
default:coalblock

default:stone_with_iron
default:steelblock

default:stone_with_copper
default:copperblock

default:stone_with_tin
default:tinblock

default:bronzeblock

default:stone_with_gold
default:goldblock

default:stone_with_mese
default:mese

default:stone_with_diamond
default:diamondblock

Plantlife
---------

default:cactus
default:large_cactus_seedling

default:papyrus
default:dry_shrub
default:junglegrass

default:grass_1
default:grass_2
default:grass_3
default:grass_4
default:grass_5

default:dry_grass_1
default:dry_grass_2
default:dry_grass_3
default:dry_grass_4
default:dry_grass_5

default:fern_1
default:fern_2
default:fern_3

default:marram_grass_1
default:marram_grass_2
default:marram_grass_3

default:bush_stem
default:bush_leaves
default:bush_sapling
default:acacia_bush_stem
default:acacia_bush_leaves
default:acacia_bush_sapling
default:pine_bush_stem
default:pine_bush_needles
default:pine_bush_sapling
default:blueberry_bush_leaves_with_berries
default:blueberry_bush_leaves
default:blueberry_bush_sapling

default:sand_with_kelp

Corals
------

default:coral_green
default:coral_pink
default:coral_cyan
default:coral_brown
default:coral_orange
default:coral_skeleton

Liquids
-------
(1. Source 2. Flowing)

default:water_source
default:water_flowing

default:river_water_source
default:river_water_flowing

default:lava_source
default:lava_flowing

Tools / "Advanced" crafting / Non-"natural"
-------------------------------------------

default:bookshelf

default:sign_wall_wood
default:sign_wall_steel

default:ladder_wood
default:ladder_steel

default:fence_wood
default:fence_acacia_wood
default:fence_junglewood
default:fence_pine_wood
default:fence_aspen_wood

default:fence_rail_wood
default:fence_rail_acacia_wood
default:fence_rail_junglewood
default:fence_rail_pine_wood
default:fence_rail_aspen_wood

default:glass
default:obsidian_glass

default:brick

default:meselamp
default:mese_post_light
default:mese_post_light_acacia_wood
default:mese_post_light_junglewood
default:mese_post_light_pine_wood
default:mese_post_light_aspen_wood

Misc
----

default:cloud

--]]

-- Required wrapper to allow customization of default.after_place_leaves
local function after_place_leaves(...)
	return default.after_place_leaves(...)
end

-- Required wrapper to allow customization of default.grow_sapling
local function grow_sapling(...)
	return default.grow_sapling(...)
end

--
-- Stone
--

minetest.register_node("default:stone", {
	description = S("Stone"),
	tiles = {"default_stone.png"},
	groups = {cracky = 3, stone = 1},
	drop = "default:cobble",
	legacy_mineral = true,
	sounds = default.node_sound_stone_defaults(),
})

minetest.register_node("default:cobble", {
	description = S("Cobblestone"),
	tiles = {"default_cobble.png"},
	is_ground_content = false,
	groups = {cracky = 3, stone = 2},
	sounds = default.node_sound_stone_defaults(),
})

minetest.register_node("default:stonebrick", {
	description = S("Stone Brick"),
	paramtype2 = "facedir",
	place_param2 = 0,
	tiles = {"default_stone_brick.png"},
	is_ground_content = false,
	groups = {cracky = 2, stone = 1},
	sounds = default.node_sound_stone_defaults(),
})

minetest.register_node("default:stone_block", {
	description = S("Stone Block"),
	tiles = {"default_stone_block.png"},
	is_ground_content = false,
	groups = {cracky = 2, stone = 1},
	sounds = default.node_sound_stone_defaults(),
})

minetest.register_node("default:mossycobble", {
	description = S("Mossy Cobblestone"),
	tiles = {"default_mossycobble.png"},
	is_ground_content = false,
	groups = {cracky = 3, stone = 1},
	sounds = default.node_sound_stone_defaults(),
})


minetest.register_node("default:desert_stone", {
	description = S("Desert Stone"),
	tiles = {"default_desert_stone.png"},
	groups = {cracky = 3, stone = 1},
	drop = "default:desert_cobble",
	legacy_mineral = true,
	sounds = default.node_sound_stone_defaults(),
})

minetest.register_node("default:desert_cobble", {
	description = S("Desert Cobblestone"),
	tiles = {"default_desert_cobble.png"},
	is_ground_content = false,
	groups = {cracky = 3, stone = 2},
	sounds = default.node_sound_stone_defaults(),
})

minetest.register_node("default:desert_stonebrick", {
	description = S("Desert Stone Brick"),
	paramtype2 = "facedir",
	place_param2 = 0,
	tiles = {"default_desert_stone_brick.png"},
	is_ground_content = false,
	groups = {cracky = 2, stone = 1},
	sounds = default.node_sound_stone_defaults(),
})

minetest.register_node("default:desert_stone_block", {
	description = S("Desert Stone Block"),
	tiles = {"default_desert_stone_block.png"},
	is_ground_content = false,
	groups = {cracky = 2, stone = 1},
	sounds = default.node_sound_stone_defaults(),
})

minetest.register_node("default:sandstone", {
	description = S("Sandstone"),
	tiles = {"default_sandstone.png"},
	groups = {crumbly = 1, cracky = 3},
	sounds = default.node_sound_stone_defaults(),
})

minetest.register_node("default:sandstonebrick", {
	description = S("Sandstone Brick"),
	paramtype2 = "facedir",
	place_param2 = 0,
	tiles = {"default_sandstone_brick.png"},
	is_ground_content = false,
	groups = {cracky = 2},
	sounds = default.node_sound_stone_defaults(),
})

minetest.register_node("default:sandstone_block", {
	description = S("Sandstone Block"),
	tiles = {"default_sandstone_block.png"},
	is_ground_content = false,
	groups = {cracky = 2},
	sounds = default.node_sound_stone_defaults(),
})

minetest.register_node("default:desert_sandstone", {
	description = S("Desert Sandstone"),
	tiles = {"default_desert_sandstone.png"},
	groups = {crumbly = 1, cracky = 3},
	sounds = default.node_sound_stone_defaults(),
})

minetest.register_node("default:desert_sandstone_brick", {
	description = S("Desert Sandstone Brick"),
	paramtype2 = "facedir",
	place_param2 = 0,
	tiles = {"default_desert_sandstone_brick.png"},
	is_ground_content = false,
	groups = {cracky = 2},
	sounds = default.node_sound_stone_defaults(),
})

minetest.register_node("default:desert_sandstone_block", {
	description = S("Desert Sandstone Block"),
	tiles = {"default_desert_sandstone_block.png"},
	is_ground_content = false,
	groups = {cracky = 2},
	sounds = default.node_sound_stone_defaults(),
})

minetest.register_node("default:silver_sandstone", {
	description = S("Silver Sandstone"),
	tiles = {"default_silver_sandstone.png"},
	groups = {crumbly = 1, cracky = 3},
	sounds = default.node_sound_stone_defaults(),
})

minetest.register_node("default:silver_sandstone_brick", {
	description = S("Silver Sandstone Brick"),
	paramtype2 = "facedir",
	place_param2 = 0,
	tiles = {"default_silver_sandstone_brick.png"},
	is_ground_content = false,
	groups = {cracky = 2},
	sounds = default.node_sound_stone_defaults(),
})

minetest.register_node("default:silver_sandstone_block", {
	description = S("Silver Sandstone Block"),
	tiles = {"default_silver_sandstone_block.png"},
	is_ground_content = false,
	groups = {cracky = 2},
	sounds = default.node_sound_stone_defaults(),
})

minetest.register_node("default:obsidian", {
	description = S("Obsidian"),
	tiles = {"default_obsidian.png"},
	sounds = default.node_sound_stone_defaults(),
	groups = {cracky = 1, level = 2},
})

minetest.register_node("default:obsidianbrick", {
	description = S("Obsidian Brick"),
	paramtype2 = "facedir",
	place_param2 = 0,
	tiles = {"default_obsidian_brick.png"},
	is_ground_content = false,
	sounds = default.node_sound_stone_defaults(),
	groups = {cracky = 1, level = 2},
})

minetest.register_node("default:obsidian_block", {
	description = S("Obsidian Block"),
	tiles = {"default_obsidian_block.png"},
	is_ground_content = false,
	sounds = default.node_sound_stone_defaults(),
	groups = {cracky = 1, level = 2},
})

--
-- Soft / Non-Stone
--

minetest.register_node("default:dirt", {
	description = S("Dirt"),
	tiles = {"default_dirt.png"},
	groups = {crumbly = 3, soil = 1},
	sounds = default.node_sound_dirt_defaults(),
})

minetest.register_node("default:dirt_with_grass", {
	description = S("Dirt with Grass"),
	tiles = {"default_grass.png", "default_dirt.png",
		{name = "default_dirt.png^default_grass_side.png",
			tileable_vertical = false}},
	groups = {crumbly = 3, soil = 1, spreading_dirt_type = 1},
	drop = "default:dirt",
	sounds = default.node_sound_dirt_defaults({
		footstep = {name = "default_grass_footstep", gain = 0.25},
	}),
})

minetest.register_node("default:dirt_with_grass_footsteps", {
	description = S("Dirt with Grass and Footsteps"),
	tiles = {"default_grass.png^default_footprint.png", "default_dirt.png",
		{name = "default_dirt.png^default_grass_side.png",
			tileable_vertical = false}},
	groups = {crumbly = 3, soil = 1, not_in_creative_inventory = 1},
	drop = "default:dirt",
	sounds = default.node_sound_dirt_defaults({
		footstep = {name = "default_grass_footstep", gain = 0.25},
	}),
})

minetest.register_node("default:dirt_with_dry_grass", {
	description = S("Dirt with Savanna Grass"),
	tiles = {"default_dry_grass.png",
		"default_dirt.png",
		{name = "default_dirt.png^default_dry_grass_side.png",
			tileable_vertical = false}},
	groups = {crumbly = 3, soil = 1, spreading_dirt_type = 1},
	drop = "default:dirt",
	sounds = default.node_sound_dirt_defaults({
		footstep = {name = "default_grass_footstep", gain = 0.4},
	}),
})

minetest.register_node("default:dirt_with_snow", {
	description = S("Dirt with Snow"),
	tiles = {"default_snow.png", "default_dirt.png",
		{name = "default_dirt.png^default_snow_side.png",
			tileable_vertical = false}},
	groups = {crumbly = 3, soil = 1, spreading_dirt_type = 1, snowy = 1},
	drop = "default:dirt",
	sounds = default.node_sound_dirt_defaults({
		footstep = {name = "default_snow_footstep", gain = 0.2},
	}),
})

minetest.register_node("default:dirt_with_rainforest_litter", {
	description = S("Dirt with Rainforest Litter"),
	tiles = {
		"default_rainforest_litter.png",
		"default_dirt.png",
		{name = "default_dirt.png^default_rainforest_litter_side.png",
			tileable_vertical = false}
	},
	groups = {crumbly = 3, soil = 1, spreading_dirt_type = 1},
	drop = "default:dirt",
	sounds = default.node_sound_dirt_defaults({
		footstep = {name = "default_grass_footstep", gain = 0.4},
	}),
})

minetest.register_node("default:dirt_with_coniferous_litter", {
	description = S("Dirt with Coniferous Litter"),
	tiles = {
		"default_coniferous_litter.png",
		"default_dirt.png",
		{name = "default_dirt.png^default_coniferous_litter_side.png",
			tileable_vertical = false}
	},
	groups = {crumbly = 3, soil = 1, spreading_dirt_type = 1},
	drop = "default:dirt",
	sounds = default.node_sound_dirt_defaults({
		footstep = {name = "default_grass_footstep", gain = 0.4},
	}),
})

minetest.register_node("default:dry_dirt", {
	description = S("Savanna Dirt"),
	tiles = {"default_dry_dirt.png"},
	groups = {crumbly = 3, soil = 1},
	sounds = default.node_sound_dirt_defaults(),
})

minetest.register_node("default:dry_dirt_with_dry_grass", {
	description = S("Savanna Dirt with Savanna Grass"),
	tiles = {"default_dry_grass.png", "default_dry_dirt.png",
		{name = "default_dry_dirt.png^default_dry_grass_side.png",
			tileable_vertical = false}},
	groups = {crumbly = 3, soil = 1},
	drop = "default:dry_dirt",
	sounds = default.node_sound_dirt_defaults({
		footstep = {name = "default_grass_footstep", gain = 0.4},
	}),
})

minetest.register_node("default:permafrost", {
	description = S("Permafrost"),
	tiles = {"default_permafrost.png"},
	groups = {cracky = 3},
	sounds = default.node_sound_dirt_defaults(),
})

minetest.register_node("default:permafrost_with_stones", {
	description = S("Permafrost with Stones"),
	tiles = {"default_permafrost.png^default_stones.png",
		"default_permafrost.png",
		"default_permafrost.png^default_stones_side.png"},
	groups = {cracky = 3},
	sounds = default.node_sound_gravel_defaults(),
})

minetest.register_node("default:permafrost_with_moss", {
	description = S("Permafrost with Moss"),
	tiles = {"default_moss.png", "default_permafrost.png",
		{name = "default_permafrost.png^default_moss_side.png",
			tileable_vertical = false}},
	groups = {cracky = 3},
	sounds = default.node_sound_dirt_defaults({
		footstep = {name = "default_grass_footstep", gain = 0.25},
	}),
})

minetest.register_node("default:sand", {
	description = S("Sand"),
	tiles = {"default_sand.png"},
	groups = {crumbly = 3, falling_node = 1, sand = 1},
	sounds = default.node_sound_sand_defaults(),
})

minetest.register_node("default:desert_sand", {
	description = S("Desert Sand"),
	tiles = {"default_desert_sand.png"},
	groups = {crumbly = 3, falling_node = 1, sand = 1},
	sounds = default.node_sound_sand_defaults(),
})

minetest.register_node("default:silver_sand", {
	description = S("Silver Sand"),
	tiles = {"default_silver_sand.png"},
	groups = {crumbly = 3, falling_node = 1, sand = 1},
	sounds = default.node_sound_sand_defaults(),
})


minetest.register_node("default:gravel", {
	description = S("Gravel"),
	tiles = {"default_gravel.png"},
	groups = {crumbly = 2, falling_node = 1},
	sounds = default.node_sound_gravel_defaults(),
	drop = {
		max_items = 1,
		items = {
			{items = {"default:flint"}, rarity = 16},
			{items = {"default:gravel"}}
		}
	}
})

minetest.register_node("default:clay", {
	description = S("Clay"),
	tiles = {"default_clay.png"},
	groups = {crumbly = 3},
	drop = "default:clay_lump 4",
	sounds = default.node_sound_dirt_defaults(),
})


minetest.register_node("default:snow", {
	description = S("Snow"),
	tiles = {"default_snow.png"},
	inventory_image = "default_snowball.png",
	wield_image = "default_snowball.png",
	paramtype = "light",
	buildable_to = true,
	floodable = true,
	drawtype = "nodebox",
	node_box = {
		type = "fixed",
		fixed = {
			{-0.5, -0.5, -0.5, 0.5, -0.25, 0.5},
		},
	},
	collision_box = {
		type = "fixed",
		fixed = {
			{-0.5, -0.5, -0.5, 0.5, -6 / 16, 0.5},
		},
	},
	groups = {crumbly = 3, falling_node = 1, snowy = 1},
	sounds = default.node_sound_snow_defaults(),

	on_construct = function(pos)
		pos.y = pos.y - 1
		if minetest.get_node(pos).name == "default:dirt_with_grass" then
			minetest.set_node(pos, {name = "default:dirt_with_snow"})
		end
	end,
})

minetest.register_node("default:snowblock", {
	description = S("Snow Block"),
	tiles = {"default_snow.png"},
	groups = {crumbly = 3, cools_lava = 1, snowy = 1},
	sounds = default.node_sound_snow_defaults(),

	on_construct = function(pos)
		pos.y = pos.y - 1
		if minetest.get_node(pos).name == "default:dirt_with_grass" then
			minetest.set_node(pos, {name = "default:dirt_with_snow"})
		end
	end,
})

-- 'is ground content = false' to avoid tunnels in sea ice or ice rivers
minetest.register_node("default:ice", {
	description = S("Ice"),
	tiles = {"default_ice.png"},
	is_ground_content = false,
	paramtype = "light",
	groups = {cracky = 3, cools_lava = 1, slippery = 3},
	sounds = default.node_sound_ice_defaults(),
})

-- Mapgen-placed ice with 'is ground content = true' to contain tunnels
minetest.register_node("default:cave_ice", {
	description = S("Cave Ice"),
	tiles = {"default_ice.png"},
	paramtype = "light",
	groups = {cracky = 3, cools_lava = 1, slippery = 3,
		not_in_creative_inventory = 1},
	drop = "default:ice",
	sounds = default.node_sound_ice_defaults(),
})

--
-- Trees
--

minetest.register_node("default:tree", {
	description = S("Apple Tree"),
	tiles = {"default_tree_top.png", "default_tree_top.png", "default_tree.png"},
	paramtype2 = "facedir",
	is_ground_content = false,
	groups = {tree = 1, choppy = 2, oddly_breakable_by_hand = 1, flammable = 2},
	sounds = default.node_sound_wood_defaults(),

	on_place = minetest.rotate_node
})

minetest.register_node("default:wood", {
	description = S("Apple Wood Planks"),
	paramtype2 = "facedir",
	place_param2 = 0,
	tiles = {"default_wood.png"},
	is_ground_content = false,
	groups = {choppy = 2, oddly_breakable_by_hand = 2, flammable = 2, wood = 1},
	sounds = default.node_sound_wood_defaults(),
})

minetest.register_node("default:sapling", {
	description = S("Apple Tree Sapling"),
	drawtype = "plantlike",
	tiles = {"default_sapling.png"},
	inventory_image = "default_sapling.png",
	wield_image = "default_sapling.png",
	paramtype = "light",
	sunlight_propagates = true,
	walkable = false,
	on_timer = grow_sapling,
	selection_box = {
		type = "fixed",
		fixed = {-4 / 16, -0.5, -4 / 16, 4 / 16, 7 / 16, 4 / 16}
	},
	groups = {snappy = 2, dig_immediate = 3, flammable = 2,
		attached_node = 1, sapling = 1},
	sounds = default.node_sound_leaves_defaults(),

	on_construct = function(pos)
		minetest.get_node_timer(pos):start(math.random(300, 1500))
	end,

	on_place = function(itemstack, placer, pointed_thing)
		itemstack = default.sapling_on_place(itemstack, placer, pointed_thing,
			"default:sapling",
			-- minp, maxp to be checked, relative to sapling pos
			-- minp_relative.y = 1 because sapling pos has been checked
			{x = -3, y = 1, z = -3},
			{x = 3, y = 6, z = 3},
			-- maximum interval of interior volume check
			4)

		return itemstack
	end,
})

minetest.register_node("default:leaves", {
	description = S("Apple Tree Leaves"),
	drawtype = "allfaces_optional",
	waving = 1,
	tiles = {"default_leaves.png"},
	special_tiles = {"default_leaves_simple.png"},
	paramtype = "light",
	is_ground_content = false,
	groups = {snappy = 3, leafdecay = 3, flammable = 2, leaves = 1},
	drop = {
		max_items = 1,
		items = {
			{
				-- player will get sapling with 1/20 chance
				items = {"default:sapling"},
				rarity = 20,
			},
			{
				-- player will get leaves only if he get no saplings,
				-- this is because max_items is 1
				items = {"default:leaves"},
			}
		}
	},
	sounds = default.node_sound_leaves_defaults(),

	after_place_node = after_place_leaves,
})

minetest.register_node("default:apple", {
	description = S("Apple"),
	drawtype = "plantlike",
	tiles = {"default_apple.png"},
	inventory_image = "default_apple.png",
	paramtype = "light",
	sunlight_propagates = true,
	walkable = false,
	is_ground_content = false,
	selection_box = {
		type = "fixed",
		fixed = {-3 / 16, -7 / 16, -3 / 16, 3 / 16, 4 / 16, 3 / 16}
	},
	groups = {fleshy = 3, dig_immediate = 3, flammable = 2,
		leafdecay = 3, leafdecay_drop = 1, food_apple = 1},
	on_use = minetest.item_eat(2),
	sounds = default.node_sound_leaves_defaults(),

	after_place_node = function(pos, placer, itemstack)
		minetest.set_node(pos, {name = "default:apple", param2 = 1})
	end,

	after_dig_node = function(pos, oldnode, oldmetadata, digger)
		if oldnode.param2 == 0 then
			minetest.set_node(pos, {name = "default:apple_mark"})
			minetest.get_node_timer(pos):start(math.random(300, 1500))
		end
	end,
})

minetest.register_node("default:apple_mark", {
	description = S("Apple Marker"),
	inventory_image = "default_apple.png^default_invisible_node_overlay.png",
	wield_image = "default_apple.png^default_invisible_node_overlay.png",
	drawtype = "airlike",
	paramtype = "light",
	sunlight_propagates = true,
	walkable = false,
	pointable = false,
	diggable = false,
	buildable_to = true,
	drop = "",
	groups = {not_in_creative_inventory = 1},
	on_timer = function(pos, elapsed)
		if not minetest.find_node_near(pos, 1, "default:leaves") then
			minetest.remove_node(pos)
		elseif minetest.get_node_light(pos) < 11 then
			minetest.get_node_timer(pos):start(200)
		else
			minetest.set_node(pos, {name = "default:apple"})
		end
	end
})


minetest.register_node("default:jungletree", {
	description = S("Jungle Tree"),
	tiles = {"default_jungletree_top.png", "default_jungletree_top.png",
		"default_jungletree.png"},
	paramtype2 = "facedir",
	is_ground_content = false,
	groups = {tree = 1, choppy = 2, oddly_breakable_by_hand = 1, flammable = 2},
	sounds = default.node_sound_wood_defaults(),

	on_place = minetest.rotate_node
})

minetest.register_node("default:junglewood", {
	description = S("Jungle Wood Planks"),
	paramtype2 = "facedir",
	place_param2 = 0,
	tiles = {"default_junglewood.png"},
	is_ground_content = false,
	groups = {choppy = 2, oddly_breakable_by_hand = 2, flammable = 2, wood = 1},
	sounds = default.node_sound_wood_defaults(),
})

minetest.register_node("default:jungleleaves", {
	description = S("Jungle Tree Leaves"),
	drawtype = "allfaces_optional",
	waving = 1,
	tiles = {"default_jungleleaves.png"},
	special_tiles = {"default_jungleleaves_simple.png"},
	paramtype = "light",
	is_ground_content = false,
	groups = {snappy = 3, leafdecay = 3, flammable = 2, leaves = 1},
	drop = {
		max_items = 1,
		items = {
			{items = {"default:junglesapling"}, rarity = 20},
			{items = {"default:jungleleaves"}}
		}
	},
	sounds = default.node_sound_leaves_defaults(),

	after_place_node = after_place_leaves,
})

minetest.register_node("default:junglesapling", {
	description = S("Jungle Tree Sapling"),
	drawtype = "plantlike",
	tiles = {"default_junglesapling.png"},
	inventory_image = "default_junglesapling.png",
	wield_image = "default_junglesapling.png",
	paramtype = "light",
	sunlight_propagates = true,
	walkable = false,
	on_timer = grow_sapling,
	selection_box = {
		type = "fixed",
		fixed = {-4 / 16, -0.5, -4 / 16, 4 / 16, 7 / 16, 4 / 16}
	},
	groups = {snappy = 2, dig_immediate = 3, flammable = 2,
		attached_node = 1, sapling = 1},
	sounds = default.node_sound_leaves_defaults(),

	on_construct = function(pos)
		minetest.get_node_timer(pos):start(math.random(300, 1500))
	end,

	on_place = function(itemstack, placer, pointed_thing)
		itemstack = default.sapling_on_place(itemstack, placer, pointed_thing,
			"default:junglesapling",
			-- minp, maxp to be checked, relative to sapling pos
			-- minp_relative.y = 1 because sapling pos has been checked
			{x = -2, y = 1, z = -2},
			{x = 2, y = 15, z = 2},
			-- maximum interval of interior volume check
			4)

		return itemstack
	end,
})

minetest.register_node("default:emergent_jungle_sapling", {
	description = S("Emergent Jungle Tree Sapling"),
	drawtype = "plantlike",
	tiles = {"default_emergent_jungle_sapling.png"},
	inventory_image = "default_emergent_jungle_sapling.png",
	wield_image = "default_emergent_jungle_sapling.png",
	paramtype = "light",
	sunlight_propagates = true,
	walkable = false,
	on_timer = grow_sapling,
	selection_box = {
		type = "fixed",
		fixed = {-4 / 16, -0.5, -4 / 16, 4 / 16, 7 / 16, 4 / 16}
	},
	groups = {snappy = 2, dig_immediate = 3, flammable = 2,
		attached_node = 1, sapling = 1},
	sounds = default.node_sound_leaves_defaults(),

	on_construct = function(pos)
		minetest.get_node_timer(pos):start(math.random(300, 1500))
	end,

	on_place = function(itemstack, placer, pointed_thing)
		itemstack = default.sapling_on_place(itemstack, placer, pointed_thing,
			"default:emergent_jungle_sapling",
			-- minp, maxp to be checked, relative to sapling pos
			{x = -3, y = -5, z = -3},
			{x = 3, y = 31, z = 3},
			-- maximum interval of interior volume check
			4)

		return itemstack
	end,
})


minetest.register_node("default:pine_tree", {
	description = S("Pine Tree"),
	tiles = {"default_pine_tree_top.png", "default_pine_tree_top.png",
		"default_pine_tree.png"},
	paramtype2 = "facedir",
	is_ground_content = false,
	groups = {tree = 1, choppy = 3, oddly_breakable_by_hand = 1, flammable = 3},
	sounds = default.node_sound_wood_defaults(),

	on_place = minetest.rotate_node
})

minetest.register_node("default:pine_wood", {
	description = S("Pine Wood Planks"),
	paramtype2 = "facedir",
	place_param2 = 0,
	tiles = {"default_pine_wood.png"},
	is_ground_content = false,
	groups = {choppy = 3, oddly_breakable_by_hand = 2, flammable = 3, wood = 1},
	sounds = default.node_sound_wood_defaults(),
})

minetest.register_node("default:pine_needles",{
	description = S("Pine Needles"),
	drawtype = "allfaces_optional",
	tiles = {"default_pine_needles.png"},
	waving = 1,
	paramtype = "light",
	is_ground_content = false,
	groups = {snappy = 3, leafdecay = 3, flammable = 2, leaves = 1},
	drop = {
		max_items = 1,
		items = {
			{items = {"default:pine_sapling"}, rarity = 20},
			{items = {"default:pine_needles"}}
		}
	},
	sounds = default.node_sound_leaves_defaults(),

	after_place_node = after_place_leaves,
})

minetest.register_node("default:pine_sapling", {
	description = S("Pine Tree Sapling"),
	drawtype = "plantlike",
	tiles = {"default_pine_sapling.png"},
	inventory_image = "default_pine_sapling.png",
	wield_image = "default_pine_sapling.png",
	paramtype = "light",
	sunlight_propagates = true,
	walkable = false,
	on_timer = grow_sapling,
	selection_box = {
		type = "fixed",
		fixed = {-4 / 16, -0.5, -4 / 16, 4 / 16, 7 / 16, 4 / 16}
	},
	groups = {snappy = 2, dig_immediate = 3, flammable = 3,
		attached_node = 1, sapling = 1},
	sounds = default.node_sound_leaves_defaults(),

	on_construct = function(pos)
		minetest.get_node_timer(pos):start(math.random(300, 1500))
	end,

	on_place = function(itemstack, placer, pointed_thing)
		itemstack = default.sapling_on_place(itemstack, placer, pointed_thing,
			"default:pine_sapling",
			-- minp, maxp to be checked, relative to sapling pos
			-- minp_relative.y = 1 because sapling pos has been checked
			{x = -2, y = 1, z = -2},
			{x = 2, y = 14, z = 2},
			-- maximum interval of interior volume check
			4)

		return itemstack
	end,
})


minetest.register_node("default:acacia_tree", {
	description = S("Acacia Tree"),
	tiles = {"default_acacia_tree_top.png", "default_acacia_tree_top.png",
		"default_acacia_tree.png"},
	paramtype2 = "facedir",
	is_ground_content = false,
	groups = {tree = 1, choppy = 2, oddly_breakable_by_hand = 1, flammable = 2},
	sounds = default.node_sound_wood_defaults(),

	on_place = minetest.rotate_node
})

minetest.register_node("default:acacia_wood", {
	description = S("Acacia Wood Planks"),
	paramtype2 = "facedir",
	place_param2 = 0,
	tiles = {"default_acacia_wood.png"},
	is_ground_content = false,
	groups = {choppy = 2, oddly_breakable_by_hand = 2, flammable = 2, wood = 1},
	sounds = default.node_sound_wood_defaults(),
})

minetest.register_node("default:acacia_leaves", {
	description = S("Acacia Tree Leaves"),
	drawtype = "allfaces_optional",
	tiles = {"default_acacia_leaves.png"},
	special_tiles = {"default_acacia_leaves_simple.png"},
	waving = 1,
	paramtype = "light",
	is_ground_content = false,
	groups = {snappy = 3, leafdecay = 3, flammable = 2, leaves = 1},
	drop = {
		max_items = 1,
		items = {
			{items = {"default:acacia_sapling"}, rarity = 20},
			{items = {"default:acacia_leaves"}}
		}
	},
	sounds = default.node_sound_leaves_defaults(),

	after_place_node = after_place_leaves,
})

minetest.register_node("default:acacia_sapling", {
	description = S("Acacia Tree Sapling"),
	drawtype = "plantlike",
	tiles = {"default_acacia_sapling.png"},
	inventory_image = "default_acacia_sapling.png",
	wield_image = "default_acacia_sapling.png",
	paramtype = "light",
	sunlight_propagates = true,
	walkable = false,
	on_timer = grow_sapling,
	selection_box = {
		type = "fixed",
		fixed = {-4 / 16, -0.5, -4 / 16, 4 / 16, 7 / 16, 4 / 16}
	},
	groups = {snappy = 2, dig_immediate = 3, flammable = 2,
		attached_node = 1, sapling = 1},
	sounds = default.node_sound_leaves_defaults(),

	on_construct = function(pos)
		minetest.get_node_timer(pos):start(math.random(300, 1500))
	end,

	on_place = function(itemstack, placer, pointed_thing)
		itemstack = default.sapling_on_place(itemstack, placer, pointed_thing,
			"default:acacia_sapling",
			-- minp, maxp to be checked, relative to sapling pos
			-- minp_relative.y = 1 because sapling pos has been checked
			{x = -4, y = 1, z = -4},
			{x = 4, y = 7, z = 4},
			-- maximum interval of interior volume check
			4)

		return itemstack
	end,
})

minetest.register_node("default:aspen_tree", {
	description = S("Aspen Tree"),
	tiles = {"default_aspen_tree_top.png", "default_aspen_tree_top.png",
		"default_aspen_tree.png"},
	paramtype2 = "facedir",
	is_ground_content = false,
	groups = {tree = 1, choppy = 3, oddly_breakable_by_hand = 1, flammable = 3},
	sounds = default.node_sound_wood_defaults(),

	on_place = minetest.rotate_node
})

minetest.register_node("default:aspen_wood", {
	description = S("Aspen Wood Planks"),
	paramtype2 = "facedir",
	place_param2 = 0,
	tiles = {"default_aspen_wood.png"},
	is_ground_content = false,
	groups = {choppy = 3, oddly_breakable_by_hand = 2, flammable = 3, wood = 1},
	sounds = default.node_sound_wood_defaults(),
})

minetest.register_node("default:aspen_leaves", {
	description = S("Aspen Tree Leaves"),
	drawtype = "allfaces_optional",
	tiles = {"default_aspen_leaves.png"},
	waving = 1,
	paramtype = "light",
	is_ground_content = false,
	groups = {snappy = 3, leafdecay = 3, flammable = 2, leaves = 1},
	drop = {
		max_items = 1,
		items = {
			{items = {"default:aspen_sapling"}, rarity = 20},
			{items = {"default:aspen_leaves"}}
		}
	},
	sounds = default.node_sound_leaves_defaults(),

	after_place_node = after_place_leaves,
})

minetest.register_node("default:aspen_sapling", {
	description = S("Aspen Tree Sapling"),
	drawtype = "plantlike",
	tiles = {"default_aspen_sapling.png"},
	inventory_image = "default_aspen_sapling.png",
	wield_image = "default_aspen_sapling.png",
	paramtype = "light",
	sunlight_propagates = true,
	walkable = false,
	on_timer = grow_sapling,
	selection_box = {
		type = "fixed",
		fixed = {-3 / 16, -0.5, -3 / 16, 3 / 16, 0.5, 3 / 16}
	},
	groups = {snappy = 2, dig_immediate = 3, flammable = 3,
		attached_node = 1, sapling = 1},
	sounds = default.node_sound_leaves_defaults(),

	on_construct = function(pos)
		minetest.get_node_timer(pos):start(math.random(300, 1500))
	end,

	on_place = function(itemstack, placer, pointed_thing)
		itemstack = default.sapling_on_place(itemstack, placer, pointed_thing,
			"default:aspen_sapling",
			-- minp, maxp to be checked, relative to sapling pos
			-- minp_relative.y = 1 because sapling pos has been checked
			{x = -2, y = 1, z = -2},
			{x = 2, y = 12, z = 2},
			-- maximum interval of interior volume check
			4)

		return itemstack
	end,
})

--
-- Ores
--

minetest.register_node("default:stone_with_coal", {
	description = S("Coal Ore"),
	tiles = {"default_stone.png^default_mineral_coal.png"},
	groups = {cracky = 3},
	drop = "default:coal_lump",
	sounds = default.node_sound_stone_defaults(),
})

minetest.register_node("default:coalblock", {
	description = S("Coal Block"),
	tiles = {"default_coal_block.png"},
	is_ground_content = false,
	groups = {cracky = 3},
	sounds = default.node_sound_stone_defaults(),
})


minetest.register_node("default:stone_with_iron", {
	description = S("Iron Ore"),
	tiles = {"default_stone.png^default_mineral_iron.png"},
	groups = {cracky = 2},
	drop = "default:iron_lump",
	sounds = default.node_sound_stone_defaults(),
})

minetest.register_node("default:steelblock", {
	description = S("Steel Block"),
	tiles = {"default_steel_block.png"},
	is_ground_content = false,
	groups = {cracky = 1, level = 2},
	sounds = default.node_sound_metal_defaults(),
})


minetest.register_node("default:stone_with_copper", {
	description = S("Copper Ore"),
	tiles = {"default_stone.png^default_mineral_copper.png"},
	groups = {cracky = 2},
	drop = "default:copper_lump",
	sounds = default.node_sound_stone_defaults(),
})

minetest.register_node("default:copperblock", {
	description = S("Copper Block"),
	tiles = {"default_copper_block.png"},
	is_ground_content = false,
	groups = {cracky = 1, level = 2},
	sounds = default.node_sound_metal_defaults(),
})


minetest.register_node("default:stone_with_tin", {
	description = S("Tin Ore"),
	tiles = {"default_stone.png^default_mineral_tin.png"},
	groups = {cracky = 2},
	drop = "default:tin_lump",
	sounds = default.node_sound_stone_defaults(),
})

minetest.register_node("default:tinblock", {
	description = S("Tin Block"),
	tiles = {"default_tin_block.png"},
	is_ground_content = false,
	groups = {cracky = 1, level = 2},
	sounds = default.node_sound_metal_defaults(),
})


minetest.register_node("default:bronzeblock", {
	description = S("Bronze Block"),
	tiles = {"default_bronze_block.png"},
	is_ground_content = false,
	groups = {cracky = 1, level = 2},
	sounds = default.node_sound_metal_defaults(),
})


minetest.register_node("default:stone_with_mese", {
	description = S("Mese Ore"),
	tiles = {"default_stone.png^default_mineral_mese.png"},
	groups = {cracky = 1},
	drop = "default:mese_crystal",
	sounds = default.node_sound_stone_defaults(),
})

minetest.register_node("default:mese", {
	description = S("Mese Block"),
	tiles = {"default_mese_block.png"},
	paramtype = "light",
	groups = {cracky = 1, level = 2},
	sounds = default.node_sound_stone_defaults(),
	light_source = 3,
})


minetest.register_node("default:stone_with_gold", {
	description = S("Gold Ore"),
	tiles = {"default_stone.png^default_mineral_gold.png"},
	groups = {cracky = 2},
	drop = "default:gold_lump",
	sounds = default.node_sound_stone_defaults(),
})

minetest.register_node("default:goldblock", {
	description = S("Gold Block"),
	tiles = {"default_gold_block.png"},
	is_ground_content = false,
	groups = {cracky = 1},
	sounds = default.node_sound_metal_defaults(),
})


minetest.register_node("default:stone_with_diamond", {
	description = S("Diamond Ore"),
	tiles = {"default_stone.png^default_mineral_diamond.png"},
	groups = {cracky = 1},
	drop = "default:diamond",
	sounds = default.node_sound_stone_defaults(),
})

minetest.register_node("default:diamondblock", {
	description = S("Diamond Block"),
	tiles = {"default_diamond_block.png"},
	is_ground_content = false,
	groups = {cracky = 1, level = 3},
	sounds = default.node_sound_stone_defaults(),
})

--
-- Plantlife (non-cubic)
--

minetest.register_node("default:cactus", {
	description = S("Cactus"),
	tiles = {"default_cactus_top.png", "default_cactus_top.png",
		"default_cactus_side.png"},
	paramtype2 = "facedir",
	groups = {choppy = 3},
	sounds = default.node_sound_wood_defaults(),
	on_place = minetest.rotate_node,
})

minetest.register_node("default:large_cactus_seedling", {
	description = S("Large Cactus Seedling"),
	drawtype = "plantlike",
	tiles = {"default_large_cactus_seedling.png"},
	inventory_image = "default_large_cactus_seedling.png",
	wield_image = "default_large_cactus_seedling.png",
	paramtype = "light",
	sunlight_propagates = true,
	walkable = false,
	selection_box = {
		type = "fixed",
		fixed = {
			-5 / 16, -0.5, -5 / 16,
			5 / 16, 0.5, 5 / 16
		}
	},
	groups = {choppy = 3, dig_immediate = 3, attached_node = 1},
	sounds = default.node_sound_wood_defaults(),

	on_place = function(itemstack, placer, pointed_thing)
		itemstack = default.sapling_on_place(itemstack, placer, pointed_thing,
			"default:large_cactus_seedling",
			{x = -2, y = -1, z = -2},
			{x = 2, y = 5, z = 2},
			4)

		return itemstack
	end,

	on_construct = function(pos)
		-- Normal cactus farming adds 1 cactus node by ABM,
		-- interval 12s, chance 83.
		-- Consider starting with 5 cactus nodes. We make sure that growing a
		-- large cactus is not a faster way to produce new cactus nodes.
		-- Confirmed by experiment, when farming 5 cacti, on average 1 new
		-- cactus node is added on average every
		-- 83 / 5 = 16.6 intervals = 16.6 * 12 = 199.2s.
		-- Large cactus contains on average 14 cactus nodes.
		-- 14 * 199.2 = 2788.8s.
		-- Set random range to average to 2789s.
		minetest.get_node_timer(pos):start(math.random(1859, 3719))
	end,

	on_timer = function(pos)
		local node_under = minetest.get_node_or_nil(
			{x = pos.x, y = pos.y - 1, z = pos.z})
		if not node_under then
			-- Node under not yet loaded, try later
			minetest.get_node_timer(pos):start(300)
			return
		end

		if minetest.get_item_group(node_under.name, "sand") == 0 then
			-- Seedling dies
			minetest.remove_node(pos)
			return
		end

		local light_level = minetest.get_node_light(pos)
		if not light_level or light_level < 13 then
			-- Too dark for growth, try later in case it's night
			minetest.get_node_timer(pos):start(300)
			return
		end

		minetest.log("action", "A large cactus seedling grows into a large" ..
			"cactus at ".. minetest.pos_to_string(pos))
		default.grow_large_cactus(pos)
	end,
})

minetest.register_node("default:papyrus", {
	description = S("Papyrus"),
	drawtype = "plantlike",
	tiles = {"default_papyrus.png"},
	inventory_image = "default_papyrus.png",
	wield_image = "default_papyrus.png",
	paramtype = "light",
	sunlight_propagates = true,
	walkable = false,
	selection_box = {
		type = "fixed",
		fixed = {-6 / 16, -0.5, -6 / 16, 6 / 16, 0.5, 6 / 16},
	},
	groups = {snappy = 3, flammable = 2},
	sounds = default.node_sound_leaves_defaults(),

	after_dig_node = function(pos, node, metadata, digger)
		default.dig_up(pos, node, digger)
	end,
})

minetest.register_node("default:dry_shrub", {
	description = S("Dry Shrub"),
	drawtype = "plantlike",
	waving = 1,
	tiles = {"default_dry_shrub.png"},
	inventory_image = "default_dry_shrub.png",
	wield_image = "default_dry_shrub.png",
	paramtype = "light",
	paramtype2 = "meshoptions",
	place_param2 = 4,
	sunlight_propagates = true,
	walkable = false,
	buildable_to = true,
	groups = {snappy = 3, flammable = 3, attached_node = 1},
	sounds = default.node_sound_leaves_defaults(),
	selection_box = {
		type = "fixed",
		fixed = {-6 / 16, -0.5, -6 / 16, 6 / 16, 4 / 16, 6 / 16},
	},
})

minetest.register_node("default:junglegrass", {
	description = S("Jungle Grass"),
	drawtype = "plantlike",
	waving = 1,
	visual_scale = 1.69,
	tiles = {"default_junglegrass.png"},
	inventory_image = "default_junglegrass.png",
	wield_image = "default_junglegrass.png",
	paramtype = "light",
	sunlight_propagates = true,
	walkable = false,
	buildable_to = true,
	groups = {snappy = 3, flora = 1, attached_node = 1, grass = 1, junglegrass = 1, flammable = 1},
	sounds = default.node_sound_leaves_defaults(),
	selection_box = {
		type = "fixed",
		fixed = {-6 / 16, -0.5, -6 / 16, 6 / 16, 0.5, 6 / 16},
	},
})


minetest.register_node("default:grass_1", {
	description = S("Grass"),
	drawtype = "plantlike",
	waving = 1,
	tiles = {"default_grass_1.png"},
	-- Use texture of a taller grass stage in inventory
	inventory_image = "default_grass_3.png",
	wield_image = "default_grass_3.png",
	paramtype = "light",
	sunlight_propagates = true,
	walkable = false,
	buildable_to = true,
	groups = {snappy = 3, flora = 1, attached_node = 1, grass = 1,
		normal_grass = 1, flammable = 1},
	sounds = default.node_sound_leaves_defaults(),
	selection_box = {
		type = "fixed",
		fixed = {-6 / 16, -0.5, -6 / 16, 6 / 16, -5 / 16, 6 / 16},
	},

	on_place = function(itemstack, placer, pointed_thing)
		-- place a random grass node
		local stack = ItemStack("default:grass_" .. math.random(1,5))
		local ret = minetest.item_place(stack, placer, pointed_thing)
		return ItemStack("default:grass_1 " ..
			itemstack:get_count() - (1 - ret:get_count()))
	end,
})

for i = 2, 5 do
	minetest.register_node("default:grass_" .. i, {
		description = S("Grass"),
		drawtype = "plantlike",
		waving = 1,
		tiles = {"default_grass_" .. i .. ".png"},
		inventory_image = "default_grass_" .. i .. ".png",
		wield_image = "default_grass_" .. i .. ".png",
		paramtype = "light",
		sunlight_propagates = true,
		walkable = false,
		buildable_to = true,
		drop = "default:grass_1",
		groups = {snappy = 3, flora = 1, attached_node = 1,
			not_in_creative_inventory = 1, grass = 1,
			normal_grass = 1, flammable = 1},
		sounds = default.node_sound_leaves_defaults(),
		selection_box = {
			type = "fixed",
			fixed = {-6 / 16, -0.5, -6 / 16, 6 / 16, -3 / 16, 6 / 16},
		},
	})
end


minetest.register_node("default:dry_grass_1", {
	description = S("Savanna Grass"),
	drawtype = "plantlike",
	waving = 1,
	tiles = {"default_dry_grass_1.png"},
	inventory_image = "default_dry_grass_3.png",
	wield_image = "default_dry_grass_3.png",
	paramtype = "light",
	sunlight_propagates = true,
	walkable = false,
	buildable_to = true,
	groups = {snappy = 3, flammable = 3, flora = 1,
		attached_node = 1, grass = 1, dry_grass = 1},
	sounds = default.node_sound_leaves_defaults(),
	selection_box = {
		type = "fixed",
		fixed = {-6 / 16, -0.5, -6 / 16, 6 / 16, -3 / 16, 6 / 16},
	},

	on_place = function(itemstack, placer, pointed_thing)
		-- place a random dry grass node
		local stack = ItemStack("default:dry_grass_" .. math.random(1, 5))
		local ret = minetest.item_place(stack, placer, pointed_thing)
		return ItemStack("default:dry_grass_1 " ..
			itemstack:get_count() - (1 - ret:get_count()))
	end,
})

for i = 2, 5 do
	minetest.register_node("default:dry_grass_" .. i, {
		description = S("Savanna Grass"),
		drawtype = "plantlike",
		waving = 1,
		tiles = {"default_dry_grass_" .. i .. ".png"},
		inventory_image = "default_dry_grass_" .. i .. ".png",
		wield_image = "default_dry_grass_" .. i .. ".png",
		paramtype = "light",
		sunlight_propagates = true,
		walkable = false,
		buildable_to = true,
		groups = {snappy = 3, flammable = 3, flora = 1, attached_node = 1,
			not_in_creative_inventory = 1, grass = 1, dry_grass = 1},
		drop = "default:dry_grass_1",
		sounds = default.node_sound_leaves_defaults(),
		selection_box = {
			type = "fixed",
			fixed = {-6 / 16, -0.5, -6 / 16, 6 / 16, -1 / 16, 6 / 16},
		},
	})
end


minetest.register_node("default:fern_1", {
	description = S("Fern"),
	drawtype = "plantlike",
	waving = 1,
	tiles = {"default_fern_1.png"},
	inventory_image = "default_fern_1.png",
	wield_image = "default_fern_1.png",
	paramtype = "light",
	sunlight_propagates = true,
	walkable = false,
	buildable_to = true,
	groups = {snappy = 3, flammable = 3, flora = 1, grass = 1,
		fern = 1, attached_node = 1},
	sounds = default.node_sound_leaves_defaults(),
	selection_box = {
		type = "fixed",
		fixed = {-6 / 16, -0.5, -6 / 16, 6 / 16, -0.25, 6 / 16},
	},

	on_place = function(itemstack, placer, pointed_thing)
		-- place a random fern node
		local stack = ItemStack("default:fern_" .. math.random(1, 3))
		local ret = minetest.item_place(stack, placer, pointed_thing)
		return ItemStack("default:fern_1 " ..
			itemstack:get_count() - (1 - ret:get_count()))
	end,
})

for i = 2, 3 do
	minetest.register_node("default:fern_" .. i, {
		description = S("Fern"),
		drawtype = "plantlike",
		waving = 1,
		visual_scale = 2,
		tiles = {"default_fern_" .. i .. ".png"},
		inventory_image = "default_fern_" .. i .. ".png",
		wield_image = "default_fern_" .. i .. ".png",
		paramtype = "light",
		sunlight_propagates = true,
		walkable = false,
		buildable_to = true,
		groups = {snappy = 3, flammable = 3, flora = 1, attached_node = 1,
			grass = 1, fern = 1, not_in_creative_inventory = 1},
		drop = "default:fern_1",
		sounds = default.node_sound_leaves_defaults(),
		selection_box = {
			type = "fixed",
			fixed = {-6 / 16, -0.5, -6 / 16, 6 / 16, -0.25, 6 / 16},
		},
	})
end


minetest.register_node("default:marram_grass_1", {
	description = S("Marram Grass"),
	drawtype = "plantlike",
	waving = 1,
	tiles = {"default_marram_grass_1.png"},
	inventory_image = "default_marram_grass_1.png",
	wield_image = "default_marram_grass_1.png",
	paramtype = "light",
	sunlight_propagates = true,
	walkable = false,
	buildable_to = true,
	groups = {snappy = 3, flammable = 3, flora = 1, grass = 1, marram_grass = 1,
		attached_node = 1},
	sounds = default.node_sound_leaves_defaults(),
	selection_box = {
		type = "fixed",
		fixed = {-6 / 16, -0.5, -6 / 16, 6 / 16, -0.25, 6 / 16},
	},

	on_place = function(itemstack, placer, pointed_thing)
		-- place a random marram grass node
		local stack = ItemStack("default:marram_grass_" .. math.random(1, 3))
		local ret = minetest.item_place(stack, placer, pointed_thing)
		return ItemStack("default:marram_grass_1 " ..
			itemstack:get_count() - (1 - ret:get_count()))
	end,
})

for i = 2, 3 do
	minetest.register_node("default:marram_grass_" .. i, {
		description = S("Marram Grass"),
		drawtype = "plantlike",
		waving = 1,
		tiles = {"default_marram_grass_" .. i .. ".png"},
		inventory_image = "default_marram_grass_" .. i .. ".png",
		wield_image = "default_marram_grass_" .. i .. ".png",
		paramtype = "light",
		sunlight_propagates = true,
		walkable = false,
		buildable_to = true,
		groups = {snappy = 3, flammable = 3, flora = 1, attached_node = 1,
			grass = 1, marram_grass = 1, not_in_creative_inventory = 1},
		drop = "default:marram_grass_1",
		sounds = default.node_sound_leaves_defaults(),
		selection_box = {
			type = "fixed",
			fixed = {-6 / 16, -0.5, -6 / 16, 6 / 16, -0.25, 6 / 16},
		},
	})
end


minetest.register_node("default:bush_stem", {
	description = S("Bush Stem"),
	drawtype = "plantlike",
	visual_scale = 1.41,
	tiles = {"default_bush_stem.png"},
	inventory_image = "default_bush_stem.png",
	wield_image = "default_bush_stem.png",
	paramtype = "light",
	sunlight_propagates = true,
	groups = {choppy = 2, oddly_breakable_by_hand = 1, flammable = 2},
	sounds = default.node_sound_wood_defaults(),
	selection_box = {
		type = "fixed",
		fixed = {-7 / 16, -0.5, -7 / 16, 7 / 16, 0.5, 7 / 16},
	},
})

minetest.register_node("default:bush_leaves", {
	description = S("Bush Leaves"),
	drawtype = "allfaces_optional",
	tiles = {"default_leaves_simple.png"},
	paramtype = "light",
	groups = {snappy = 3, flammable = 2, leaves = 1},
	drop = {
		max_items = 1,
		items = {
			{items = {"default:bush_sapling"}, rarity = 5},
			{items = {"default:bush_leaves"}}
		}
	},
	sounds = default.node_sound_leaves_defaults(),

	after_place_node = after_place_leaves,
})

minetest.register_node("default:bush_sapling", {
	description = S("Bush Sapling"),
	drawtype = "plantlike",
	tiles = {"default_bush_sapling.png"},
	inventory_image = "default_bush_sapling.png",
	wield_image = "default_bush_sapling.png",
	paramtype = "light",
	sunlight_propagates = true,
	walkable = false,
	on_timer = grow_sapling,
	selection_box = {
		type = "fixed",
		fixed = {-4 / 16, -0.5, -4 / 16, 4 / 16, 2 / 16, 4 / 16}
	},
	groups = {snappy = 2, dig_immediate = 3, flammable = 2,
		attached_node = 1, sapling = 1},
	sounds = default.node_sound_leaves_defaults(),

	on_construct = function(pos)
		minetest.get_node_timer(pos):start(math.random(300, 1500))
	end,

	on_place = function(itemstack, placer, pointed_thing)
		itemstack = default.sapling_on_place(itemstack, placer, pointed_thing,
			"default:bush_sapling",
			-- minp, maxp to be checked, relative to sapling pos
			{x = -1, y = 0, z = -1},
			{x = 1, y = 1, z = 1},
			-- maximum interval of interior volume check
			2)

		return itemstack
	end,
})

minetest.register_node("default:blueberry_bush_leaves_with_berries", {
	description = S("Blueberry Bush Leaves with Berries"),
	drawtype = "allfaces_optional",
	tiles = {"default_blueberry_bush_leaves.png^default_blueberry_overlay.png"},
	paramtype = "light",
	groups = {snappy = 3, flammable = 2, leaves = 1, dig_immediate = 3},
	drop = "default:blueberries",
	sounds = default.node_sound_leaves_defaults(),
	node_dig_prediction = "default:blueberry_bush_leaves",

	after_dig_node = function(pos, oldnode, oldmetadata, digger)
		minetest.set_node(pos, {name = "default:blueberry_bush_leaves"})
		minetest.get_node_timer(pos):start(math.random(300, 1500))
	end,
})

minetest.register_node("default:blueberry_bush_leaves", {
	description = S("Blueberry Bush Leaves"),
	drawtype = "allfaces_optional",
	tiles = {"default_blueberry_bush_leaves.png"},
	paramtype = "light",
	groups = {snappy = 3, flammable = 2, leaves = 1},
	drop = {
		max_items = 1,
		items = {
			{items = {"default:blueberry_bush_sapling"}, rarity = 5},
			{items = {"default:blueberry_bush_leaves"}}
		}
	},
	sounds = default.node_sound_leaves_defaults(),

	on_timer = function(pos, elapsed)
		if minetest.get_node_light(pos) < 11 then
			minetest.get_node_timer(pos):start(200)
		else
			minetest.set_node(pos, {name = "default:blueberry_bush_leaves_with_berries"})
		end
	end,

	after_place_node = after_place_leaves,
})

minetest.register_node("default:blueberry_bush_sapling", {
	description = S("Blueberry Bush Sapling"),
	drawtype = "plantlike",
	tiles = {"default_blueberry_bush_sapling.png"},
	inventory_image = "default_blueberry_bush_sapling.png",
	wield_image = "default_blueberry_bush_sapling.png",
	paramtype = "light",
	sunlight_propagates = true,
	walkable = false,
	on_timer = grow_sapling,
	selection_box = {
		type = "fixed",
		fixed = {-4 / 16, -0.5, -4 / 16, 4 / 16, 2 / 16, 4 / 16}
	},
	groups = {snappy = 2, dig_immediate = 3, flammable = 2,
		attached_node = 1, sapling = 1},
	sounds = default.node_sound_leaves_defaults(),

	on_construct = function(pos)
		minetest.get_node_timer(pos):start(math.random(300, 1500))
	end,

	on_place = function(itemstack, placer, pointed_thing)
		itemstack = default.sapling_on_place(itemstack, placer, pointed_thing,
			"default:blueberry_bush_sapling",
			-- minp, maxp to be checked, relative to sapling pos
			{x = -1, y = 0, z = -1},
			{x = 1, y = 1, z = 1},
			-- maximum interval of interior volume check
			2)

		return itemstack
	end,
})

minetest.register_node("default:acacia_bush_stem", {
	description = S("Acacia Bush Stem"),
	drawtype = "plantlike",
	visual_scale = 1.41,
	tiles = {"default_acacia_bush_stem.png"},
	inventory_image = "default_acacia_bush_stem.png",
	wield_image = "default_acacia_bush_stem.png",
	paramtype = "light",
	sunlight_propagates = true,
	groups = {choppy = 2, oddly_breakable_by_hand = 1, flammable = 2},
	sounds = default.node_sound_wood_defaults(),
	selection_box = {
		type = "fixed",
		fixed = {-7 / 16, -0.5, -7 / 16, 7 / 16, 0.5, 7 / 16},
	},
})

minetest.register_node("default:acacia_bush_leaves", {
	description = S("Acacia Bush Leaves"),
	drawtype = "allfaces_optional",
	tiles = {"default_acacia_leaves_simple.png"},
	paramtype = "light",
	groups = {snappy = 3, flammable = 2, leaves = 1},
	drop = {
		max_items = 1,
		items = {
			{items = {"default:acacia_bush_sapling"}, rarity = 5},
			{items = {"default:acacia_bush_leaves"}}
		}
	},
	sounds = default.node_sound_leaves_defaults(),

	after_place_node = after_place_leaves,
})

minetest.register_node("default:acacia_bush_sapling", {
	description = S("Acacia Bush Sapling"),
	drawtype = "plantlike",
	tiles = {"default_acacia_bush_sapling.png"},
	inventory_image = "default_acacia_bush_sapling.png",
	wield_image = "default_acacia_bush_sapling.png",
	paramtype = "light",
	sunlight_propagates = true,
	walkable = false,
	on_timer = grow_sapling,
	selection_box = {
		type = "fixed",
		fixed = {-3 / 16, -0.5, -3 / 16, 3 / 16, 2 / 16, 3 / 16}
	},
	groups = {snappy = 2, dig_immediate = 3, flammable = 2,
		attached_node = 1, sapling = 1},
	sounds = default.node_sound_leaves_defaults(),

	on_construct = function(pos)
		minetest.get_node_timer(pos):start(math.random(300, 1500))
	end,

	on_place = function(itemstack, placer, pointed_thing)
		itemstack = default.sapling_on_place(itemstack, placer, pointed_thing,
			"default:acacia_bush_sapling",
			-- minp, maxp to be checked, relative to sapling pos
			{x = -1, y = 0, z = -1},
			{x = 1, y = 1, z = 1},
			-- maximum interval of interior volume check
			2)

		return itemstack
	end,
})

minetest.register_node("default:pine_bush_stem", {
	description = S("Pine Bush Stem"),
	drawtype = "plantlike",
	visual_scale = 1.41,
	tiles = {"default_pine_bush_stem.png"},
	inventory_image = "default_pine_bush_stem.png",
	wield_image = "default_pine_bush_stem.png",
	paramtype = "light",
	sunlight_propagates = true,
	groups = {choppy = 2, oddly_breakable_by_hand = 1, flammable = 2},
	sounds = default.node_sound_wood_defaults(),
	selection_box = {
		type = "fixed",
		fixed = {-7 / 16, -0.5, -7 / 16, 7 / 16, 0.5, 7 / 16},
	},
})

minetest.register_node("default:pine_bush_needles", {
	description = S("Pine Bush Needles"),
	drawtype = "allfaces_optional",
	tiles = {"default_pine_needles.png"},
	paramtype = "light",
	groups = {snappy = 3, flammable = 2, leaves = 1},
	drop = {
		max_items = 1,
		items = {
			{items = {"default:pine_bush_sapling"}, rarity = 5},
			{items = {"default:pine_bush_needles"}}
		}
	},
	sounds = default.node_sound_leaves_defaults(),

	after_place_node = after_place_leaves,
})

minetest.register_node("default:pine_bush_sapling", {
	description = S("Pine Bush Sapling"),
	drawtype = "plantlike",
	tiles = {"default_pine_bush_sapling.png"},
	inventory_image = "default_pine_bush_sapling.png",
	wield_image = "default_pine_bush_sapling.png",
	paramtype = "light",
	sunlight_propagates = true,
	walkable = false,
	on_timer = grow_sapling,
	selection_box = {
		type = "fixed",
		fixed = {-4 / 16, -0.5, -4 / 16, 4 / 16, 2 / 16, 4 / 16}
	},
	groups = {snappy = 2, dig_immediate = 3, flammable = 2,
		attached_node = 1, sapling = 1},
	sounds = default.node_sound_leaves_defaults(),

	on_construct = function(pos)
		minetest.get_node_timer(pos):start(math.random(300, 1500))
	end,

	on_place = function(itemstack, placer, pointed_thing)
		itemstack = default.sapling_on_place(itemstack, placer, pointed_thing,
			"default:pine_bush_sapling",
			-- minp, maxp to be checked, relative to sapling pos
			{x = -1, y = 0, z = -1},
			{x = 1, y = 1, z = 1},
			-- maximum interval of interior volume check
			2)

		return itemstack
	end,
})


minetest.register_node("default:sand_with_kelp", {
	description = S("Kelp"),
	drawtype = "plantlike_rooted",
	waving = 1,
	tiles = {"default_sand.png"},
	special_tiles = {{name = "default_kelp.png", tileable_vertical = true}},
	inventory_image = "default_kelp.png",
	wield_image = "default_kelp.png",
	paramtype = "light",
	paramtype2 = "leveled",
	groups = {snappy = 3},
	selection_box = {
		type = "fixed",
		fixed = {
				{-0.5, -0.5, -0.5, 0.5, 0.5, 0.5},
				{-2/16, 0.5, -2/16, 2/16, 3.5, 2/16},
		},
	},
	node_dig_prediction = "default:sand",
	node_placement_prediction = "",
	sounds = default.node_sound_sand_defaults({
		dig = {name = "default_dig_snappy", gain = 0.2},
		dug = {name = "default_grass_footstep", gain = 0.25},
	}),

	on_place = function(itemstack, placer, pointed_thing)
		-- Call on_rightclick if the pointed node defines it
		if pointed_thing.type == "node" and placer and
				not placer:get_player_control().sneak then
			local node_ptu = minetest.get_node(pointed_thing.under)
			local def_ptu = minetest.registered_nodes[node_ptu.name]
			if def_ptu and def_ptu.on_rightclick then
				return def_ptu.on_rightclick(pointed_thing.under, node_ptu, placer,
					itemstack, pointed_thing)
			end
		end

		local pos = pointed_thing.under
		if minetest.get_node(pos).name ~= "default:sand" then
			return itemstack
		end

		local height = math.random(4, 6)
		local pos_top = {x = pos.x, y = pos.y + height, z = pos.z}
		local node_top = minetest.get_node(pos_top)
		local def_top = minetest.registered_nodes[node_top.name]
		local player_name = placer:get_player_name()

		if def_top and def_top.liquidtype == "source" and
				minetest.get_item_group(node_top.name, "water") > 0 then
			if not minetest.is_protected(pos, player_name) and
					not minetest.is_protected(pos_top, player_name) then
				minetest.set_node(pos, {name = "default:sand_with_kelp",
					param2 = height * 16})
				if not minetest.is_creative_enabled(player_name) then
					itemstack:take_item()
				end
			else
				minetest.chat_send_player(player_name, "Node is protected")
				minetest.record_protection_violation(pos, player_name)
			end
		end

		return itemstack
	end,

	after_destruct  = function(pos, oldnode)
		minetest.set_node(pos, {name = "default:sand"})
	end
})


--
-- Corals
--

local function coral_on_place(itemstack, placer, pointed_thing)
	if pointed_thing.type ~= "node" or not placer then
		return itemstack
	end

	local player_name = placer:get_player_name()
	local pos_under = pointed_thing.under
	local pos_above = pointed_thing.above
	local node_under = minetest.get_node(pos_under)
	local def_under = minetest.registered_nodes[node_under.name]

	if def_under and def_under.on_rightclick and not placer:get_player_control().sneak then
		return def_under.on_rightclick(pos_under, node_under,
				placer, itemstack, pointed_thing) or itemstack
	end

	if node_under.name ~= "default:coral_skeleton" or
			minetest.get_node(pos_above).name ~= "default:water_source" then
		return itemstack
	end

	if minetest.is_protected(pos_under, player_name) or
			minetest.is_protected(pos_above, player_name) then
		minetest.log("action", player_name
			.. " tried to place " .. itemstack:get_name()
			.. " at protected position "
			.. minetest.pos_to_string(pos_under))
		minetest.record_protection_violation(pos_under, player_name)
		return itemstack
	end

	node_under.name = itemstack:get_name()
	minetest.set_node(pos_under, node_under)
	if not minetest.is_creative_enabled(player_name) then
		itemstack:take_item()
	end

	return itemstack
end

minetest.register_node("default:coral_green", {
	description = S("Green Coral"),
	drawtype = "plantlike_rooted",
	waving = 1,
	paramtype = "light",
	tiles = {"default_coral_skeleton.png"},
	special_tiles = {{name = "default_coral_green.png", tileable_vertical = true}},
	inventory_image = "default_coral_green.png",
	wield_image = "default_coral_green.png",
	groups = {snappy = 3},
	selection_box = {
		type = "fixed",
		fixed = {
				{-0.5, -0.5, -0.5, 0.5, 0.5, 0.5},
				{-4/16, 0.5, -4/16, 4/16, 1.5, 4/16},
		},
	},
	node_dig_prediction = "default:coral_skeleton",
	node_placement_prediction = "",
	sounds = default.node_sound_stone_defaults({
		dig = {name = "default_dig_snappy", gain = 0.2},
		dug = {name = "default_grass_footstep", gain = 0.25},
	}),

	on_place = coral_on_place,

	after_destruct  = function(pos, oldnode)
		minetest.set_node(pos, {name = "default:coral_skeleton"})
	end,
})

minetest.register_node("default:coral_pink", {
	description = S("Pink Coral"),
	drawtype = "plantlike_rooted",
	waving = 1,
	paramtype = "light",
	tiles = {"default_coral_skeleton.png"},
	special_tiles = {{name = "default_coral_pink.png", tileable_vertical = true}},
	inventory_image = "default_coral_pink.png",
	wield_image = "default_coral_pink.png",
	groups = {snappy = 3},
	selection_box = {
		type = "fixed",
		fixed = {
				{-0.5, -0.5, -0.5, 0.5, 0.5, 0.5},
				{-4/16, 0.5, -4/16, 4/16, 1.5, 4/16},
		},
	},
	node_dig_prediction = "default:coral_skeleton",
	node_placement_prediction = "",
	sounds = default.node_sound_stone_defaults({
		dig = {name = "default_dig_snappy", gain = 0.2},
		dug = {name = "default_grass_footstep", gain = 0.25},
	}),

	on_place = coral_on_place,

	after_destruct  = function(pos, oldnode)
		minetest.set_node(pos, {name = "default:coral_skeleton"})
	end,
})

minetest.register_node("default:coral_cyan", {
	description = S("Cyan Coral"),
	drawtype = "plantlike_rooted",
	waving = 1,
	paramtype = "light",
	tiles = {"default_coral_skeleton.png"},
	special_tiles = {{name = "default_coral_cyan.png", tileable_vertical = true}},
	inventory_image = "default_coral_cyan.png",
	wield_image = "default_coral_cyan.png",
	groups = {snappy = 3},
	selection_box = {
		type = "fixed",
		fixed = {
				{-0.5, -0.5, -0.5, 0.5, 0.5, 0.5},
				{-4/16, 0.5, -4/16, 4/16, 1.5, 4/16},
		},
	},
	node_dig_prediction = "default:coral_skeleton",
	node_placement_prediction = "",
	sounds = default.node_sound_stone_defaults({
		dig = {name = "default_dig_snappy", gain = 0.2},
		dug = {name = "default_grass_footstep", gain = 0.25},
	}),

	on_place = coral_on_place,

	after_destruct  = function(pos, oldnode)
		minetest.set_node(pos, {name = "default:coral_skeleton"})
	end,
})

minetest.register_node("default:coral_brown", {
	description = S("Brown Coral"),
	tiles = {"default_coral_brown.png"},
	groups = {cracky = 3},
	drop = "default:coral_skeleton",
	sounds = default.node_sound_stone_defaults(),
})

minetest.register_node("default:coral_orange", {
	description = S("Orange Coral"),
	tiles = {"default_coral_orange.png"},
	groups = {cracky = 3},
	drop = "default:coral_skeleton",
	sounds = default.node_sound_stone_defaults(),
})

minetest.register_node("default:coral_skeleton", {
	description = S("Coral Skeleton"),
	tiles = {"default_coral_skeleton.png"},
	groups = {cracky = 3},
	sounds = default.node_sound_stone_defaults(),
})


--
-- Liquids
--

minetest.register_node("default:water_source", {
	description = S("Water Source"),
	drawtype = "liquid",
	waving = 3,
	tiles = {
		{
			name = "default_water_source_animated.png",
			backface_culling = false,
			animation = {
				type = "vertical_frames",
				aspect_w = 16,
				aspect_h = 16,
				length = 2.0,
			},
		},
		{
			name = "default_water_source_animated.png",
			backface_culling = true,
			animation = {
				type = "vertical_frames",
				aspect_w = 16,
				aspect_h = 16,
				length = 2.0,
			},
		},
	},
	use_texture_alpha = "blend",
	paramtype = "light",
	walkable = false,
	pointable = false,
	diggable = false,
	buildable_to = true,
	is_ground_content = false,
	drop = "",
	drowning = 1,
	liquidtype = "source",
	liquid_alternative_flowing = "default:water_flowing",
	liquid_alternative_source = "default:water_source",
	liquid_viscosity = 1,
	post_effect_color = {a = 103, r = 30, g = 60, b = 90},
	groups = {water = 3, liquid = 3, cools_lava = 1},
	sounds = default.node_sound_water_defaults(),
})

minetest.register_node("default:water_flowing", {
	description = S("Flowing Water"),
	drawtype = "flowingliquid",
	waving = 3,
	tiles = {"default_water.png"},
	special_tiles = {
		{
			name = "default_water_flowing_animated.png",
			backface_culling = false,
			animation = {
				type = "vertical_frames",
				aspect_w = 16,
				aspect_h = 16,
				length = 0.5,
			},
		},
		{
			name = "default_water_flowing_animated.png",
			backface_culling = true,
			animation = {
				type = "vertical_frames",
				aspect_w = 16,
				aspect_h = 16,
				length = 0.5,
			},
		},
	},
	use_texture_alpha = "blend",
	paramtype = "light",
	paramtype2 = "flowingliquid",
	walkable = false,
	pointable = false,
	diggable = false,
	buildable_to = true,
	is_ground_content = false,
	drop = "",
	drowning = 1,
	liquidtype = "flowing",
	liquid_alternative_flowing = "default:water_flowing",
	liquid_alternative_source = "default:water_source",
	liquid_viscosity = 1,
	post_effect_color = {a = 103, r = 30, g = 60, b = 90},
	groups = {water = 3, liquid = 3, not_in_creative_inventory = 1,
		cools_lava = 1},
	sounds = default.node_sound_water_defaults(),
})


minetest.register_node("default:river_water_source", {
	description = S("River Water Source"),
	drawtype = "liquid",
	tiles = {
		{
			name = "default_river_water_source_animated.png",
			backface_culling = false,
			animation = {
				type = "vertical_frames",
				aspect_w = 16,
				aspect_h = 16,
				length = 2.0,
			},
		},
		{
			name = "default_river_water_source_animated.png",
			backface_culling = true,
			animation = {
				type = "vertical_frames",
				aspect_w = 16,
				aspect_h = 16,
				length = 2.0,
			},
		},
	},
	use_texture_alpha = "blend",
	paramtype = "light",
	walkable = false,
	pointable = false,
	diggable = false,
	buildable_to = true,
	is_ground_content = false,
	drop = "",
	drowning = 1,
	liquidtype = "source",
	liquid_alternative_flowing = "default:river_water_flowing",
	liquid_alternative_source = "default:river_water_source",
	liquid_viscosity = 1,
	-- Not renewable to avoid horizontal spread of water sources in sloping
	-- rivers that can cause water to overflow riverbanks and cause floods.
	-- River water source is instead made renewable by the 'force renew'
	-- option used in the 'bucket' mod by the river water bucket.
	liquid_renewable = false,
	liquid_range = 2,
	post_effect_color = {a = 103, r = 30, g = 76, b = 90},
	groups = {water = 3, liquid = 3, cools_lava = 1},
	sounds = default.node_sound_water_defaults(),
})

minetest.register_node("default:river_water_flowing", {
	description = S("Flowing River Water"),
	drawtype = "flowingliquid",
	tiles = {"default_river_water.png"},
	special_tiles = {
		{
			name = "default_river_water_flowing_animated.png",
			backface_culling = false,
			animation = {
				type = "vertical_frames",
				aspect_w = 16,
				aspect_h = 16,
				length = 0.5,
			},
		},
		{
			name = "default_river_water_flowing_animated.png",
			backface_culling = true,
			animation = {
				type = "vertical_frames",
				aspect_w = 16,
				aspect_h = 16,
				length = 0.5,
			},
		},
	},
	use_texture_alpha = "blend",
	paramtype = "light",
	paramtype2 = "flowingliquid",
	walkable = false,
	pointable = false,
	diggable = false,
	buildable_to = true,
	is_ground_content = false,
	drop = "",
	drowning = 1,
	liquidtype = "flowing",
	liquid_alternative_flowing = "default:river_water_flowing",
	liquid_alternative_source = "default:river_water_source",
	liquid_viscosity = 1,
	liquid_renewable = false,
	liquid_range = 2,
	post_effect_color = {a = 103, r = 30, g = 76, b = 90},
	groups = {water = 3, liquid = 3, not_in_creative_inventory = 1,
		cools_lava = 1},
	sounds = default.node_sound_water_defaults(),
})


minetest.register_node("default:lava_source", {
	description = S("Lava Source"),
	drawtype = "liquid",
	tiles = {
		{
			name = "default_lava_source_animated.png",
			backface_culling = false,
			animation = {
				type = "vertical_frames",
				aspect_w = 16,
				aspect_h = 16,
				length = 3.0,
			},
		},
		{
			name = "default_lava_source_animated.png",
			backface_culling = true,
			animation = {
				type = "vertical_frames",
				aspect_w = 16,
				aspect_h = 16,
				length = 3.0,
			},
		},
	},
	paramtype = "light",
	light_source = default.LIGHT_MAX - 1,
	walkable = false,
	pointable = false,
	diggable = false,
	buildable_to = true,
	is_ground_content = false,
	drop = "",
	drowning = 1,
	liquidtype = "source",
	liquid_alternative_flowing = "default:lava_flowing",
	liquid_alternative_source = "default:lava_source",
	liquid_viscosity = 7,
	liquid_renewable = false,
	damage_per_second = 4 * 2,
	post_effect_color = {a = 191, r = 255, g = 64, b = 0},
	groups = {lava = 3, liquid = 2, igniter = 1},
})

minetest.register_node("default:lava_flowing", {
	description = S("Flowing Lava"),
	drawtype = "flowingliquid",
	tiles = {"default_lava.png"},
	special_tiles = {
		{
			name = "default_lava_flowing_animated.png",
			backface_culling = false,
			animation = {
				type = "vertical_frames",
				aspect_w = 16,
				aspect_h = 16,
				length = 3.3,
			},
		},
		{
			name = "default_lava_flowing_animated.png",
			backface_culling = true,
			animation = {
				type = "vertical_frames",
				aspect_w = 16,
				aspect_h = 16,
				length = 3.3,
			},
		},
	},
	paramtype = "light",
	paramtype2 = "flowingliquid",
	light_source = default.LIGHT_MAX - 1,
	walkable = false,
	pointable = false,
	diggable = false,
	buildable_to = true,
	is_ground_content = false,
	drop = "",
	drowning = 1,
	liquidtype = "flowing",
	liquid_alternative_flowing = "default:lava_flowing",
	liquid_alternative_source = "default:lava_source",
	liquid_viscosity = 7,
	liquid_renewable = false,
	damage_per_second = 4 * 2,
	post_effect_color = {a = 191, r = 255, g = 64, b = 0},
	groups = {lava = 3, liquid = 2, igniter = 1,
		not_in_creative_inventory = 1},
})

--
-- Tools / "Advanced" crafting / Non-"natural"
--

local bookshelf_formspec =
	"size[8,7;]" ..
	"list[context;books;0,0.3;8,2;]" ..
	"list[current_player;main;0,2.85;8,1;]" ..
	"list[current_player;main;0,4.08;8,3;8]" ..
	"listring[context;books]" ..
	"listring[current_player;main]" ..
	default.get_hotbar_bg(0,2.85)

local function update_bookshelf(pos)
	local meta = minetest.get_meta(pos)
	local inv = meta:get_inventory()
	local invlist = inv:get_list("books")

	local formspec = bookshelf_formspec
	-- Inventory slots overlay
	local bx, by = 0, 0.3
	local n_written, n_empty = 0, 0
	for i = 1, 16 do
		if i == 9 then
			bx = 0
			by = by + 1
		end
		local stack = invlist[i]
		if stack:is_empty() then
			formspec = formspec ..
				"image[" .. bx .. "," .. by .. ";1,1;default_bookshelf_slot.png]"
		else
			local metatable = stack:get_meta():to_table() or {}
			if metatable.fields and metatable.fields.text then
				n_written = n_written + stack:get_count()
			else
				n_empty = n_empty + stack:get_count()
			end
		end
		bx = bx + 1
	end
	meta:set_string("formspec", formspec)
	if n_written + n_empty == 0 then
		meta:set_string("infotext", S("Empty Bookshelf"))
	else
		meta:set_string("infotext", S("Bookshelf (@1 written, @2 empty books)", n_written, n_empty))
	end
end

minetest.register_node("default:bookshelf", {
	description = S("Bookshelf"),
	tiles = {"default_wood.png", "default_wood.png", "default_wood.png",
		"default_wood.png", "default_bookshelf.png", "default_bookshelf.png"},
	paramtype2 = "facedir",
	is_ground_content = false,
	groups = {choppy = 3, oddly_breakable_by_hand = 2, flammable = 3},
	sounds = default.node_sound_wood_defaults(),

	on_construct = function(pos)
		local meta = minetest.get_meta(pos)
		local inv = meta:get_inventory()
		inv:set_size("books", 8 * 2)
		update_bookshelf(pos)
	end,
	can_dig = function(pos,player)
		local inv = minetest.get_meta(pos):get_inventory()
		return inv:is_empty("books")
	end,
	allow_metadata_inventory_put = function(pos, listname, index, stack)
		if minetest.get_item_group(stack:get_name(), "book") ~= 0 then
			return stack:get_count()
		end
		return 0
	end,
	on_metadata_inventory_move = function(pos, from_list, from_index, to_list, to_index, count, player)
		minetest.log("action", player:get_player_name() ..
			" moves stuff in bookshelf at " .. minetest.pos_to_string(pos))
		update_bookshelf(pos)
	end,
	on_metadata_inventory_put = function(pos, listname, index, stack, player)
		minetest.log("action", player:get_player_name() ..
			" puts stuff to bookshelf at " .. minetest.pos_to_string(pos))
		update_bookshelf(pos)
	end,
	on_metadata_inventory_take = function(pos, listname, index, stack, player)
		minetest.log("action", player:get_player_name() ..
			" takes stuff from bookshelf at " .. minetest.pos_to_string(pos))
		update_bookshelf(pos)
	end,
	on_blast = function(pos)
		local drops = {}
		default.get_inventory_drops(pos, "books", drops)
		drops[#drops+1] = "default:bookshelf"
		minetest.remove_node(pos)
		return drops
	end,
})

local function register_sign(material, desc, def)
	minetest.register_node("default:sign_wall_" .. material, {
		description = desc,
		drawtype = "nodebox",
		tiles = {"default_sign_wall_" .. material .. ".png"},
		inventory_image = "default_sign_" .. material .. ".png",
		wield_image = "default_sign_" .. material .. ".png",
		paramtype = "light",
		paramtype2 = "wallmounted",
		sunlight_propagates = true,
		is_ground_content = false,
		walkable = false,
		use_texture_alpha = "opaque",
		node_box = {
			type = "wallmounted",
			wall_top    = {-0.4375, 0.4375, -0.3125, 0.4375, 0.5, 0.3125},
			wall_bottom = {-0.4375, -0.5, -0.3125, 0.4375, -0.4375, 0.3125},
			wall_side   = {-0.5, -0.3125, -0.4375, -0.4375, 0.3125, 0.4375},
		},
		groups = def.groups,
		legacy_wallmounted = true,
		sounds = def.sounds,

		on_construct = function(pos)
			local meta = minetest.get_meta(pos)
			meta:set_string("formspec", "field[text;;${text}]")
		end,
		on_receive_fields = function(pos, formname, fields, sender)
			local player_name = sender:get_player_name()
			if minetest.is_protected(pos, player_name) then
				minetest.record_protection_violation(pos, player_name)
				return
			end
			local text = fields.text
			if not text then
				return
			end
			if string.len(text) > 512 then
				minetest.chat_send_player(player_name, S("Text too long"))
				return
			end
			minetest.log("action", player_name .. " wrote \"" .. text ..
				"\" to the sign at " .. minetest.pos_to_string(pos))
			local meta = minetest.get_meta(pos)
			meta:set_string("text", text)

			if #text > 0 then
				meta:set_string("infotext", S('"@1"', text))
			else
				meta:set_string("infotext", '')
			end
		end,
	})
end

register_sign("wood", S("Wooden Sign"), {
	sounds = default.node_sound_wood_defaults(),
	groups = {choppy = 2, attached_node = 1, flammable = 2, oddly_breakable_by_hand = 3}
})

register_sign("steel", S("Steel Sign"), {
	sounds = default.node_sound_metal_defaults(),
	groups = {cracky = 2, attached_node = 1}
})

minetest.register_node("default:ladder_wood", {
	description = S("Wooden Ladder"),
	drawtype = "signlike",
	tiles = {"default_ladder_wood.png"},
	inventory_image = "default_ladder_wood.png",
	wield_image = "default_ladder_wood.png",
	paramtype = "light",
	paramtype2 = "wallmounted",
	sunlight_propagates = true,
	walkable = false,
	climbable = true,
	is_ground_content = false,
	selection_box = {
		type = "wallmounted",
		--wall_top = = <default>
		--wall_bottom = = <default>
		--wall_side = = <default>
	},
	groups = {choppy = 2, oddly_breakable_by_hand = 3, flammable = 2},
	legacy_wallmounted = true,
	sounds = default.node_sound_wood_defaults(),
})

minetest.register_node("default:ladder_steel", {
	description = S("Steel Ladder"),
	drawtype = "signlike",
	tiles = {"default_ladder_steel.png"},
	inventory_image = "default_ladder_steel.png",
	wield_image = "default_ladder_steel.png",
	paramtype = "light",
	paramtype2 = "wallmounted",
	sunlight_propagates = true,
	walkable = false,
	climbable = true,
	is_ground_content = false,
	selection_box = {
		type = "wallmounted",
		--wall_top = = <default>
		--wall_bottom = = <default>
		--wall_side = = <default>
	},
	groups = {cracky = 2},
	sounds = default.node_sound_metal_defaults(),
})

default.register_fence("default:fence_wood", {
	description = S("Apple Wood Fence"),
	texture = "default_fence_wood.png",
	inventory_image = "default_fence_overlay.png^default_wood.png^" ..
				"default_fence_overlay.png^[makealpha:255,126,126",
	wield_image = "default_fence_overlay.png^default_wood.png^" ..
				"default_fence_overlay.png^[makealpha:255,126,126",
	material = "default:wood",
	groups = {choppy = 2, oddly_breakable_by_hand = 2, flammable = 2},
	sounds = default.node_sound_wood_defaults()
})

default.register_fence("default:fence_acacia_wood", {
	description = S("Acacia Wood Fence"),
	texture = "default_fence_acacia_wood.png",
	inventory_image = "default_fence_overlay.png^default_acacia_wood.png^" ..
				"default_fence_overlay.png^[makealpha:255,126,126",
	wield_image = "default_fence_overlay.png^default_acacia_wood.png^" ..
				"default_fence_overlay.png^[makealpha:255,126,126",
	material = "default:acacia_wood",
	groups = {choppy = 2, oddly_breakable_by_hand = 2, flammable = 2},
	sounds = default.node_sound_wood_defaults()
})

default.register_fence("default:fence_junglewood", {
	description = S("Jungle Wood Fence"),
	texture = "default_fence_junglewood.png",
	inventory_image = "default_fence_overlay.png^default_junglewood.png^" ..
				"default_fence_overlay.png^[makealpha:255,126,126",
	wield_image = "default_fence_overlay.png^default_junglewood.png^" ..
				"default_fence_overlay.png^[makealpha:255,126,126",
	material = "default:junglewood",
	groups = {choppy = 2, oddly_breakable_by_hand = 2, flammable = 2},
	sounds = default.node_sound_wood_defaults()
})

default.register_fence("default:fence_pine_wood", {
	description = S("Pine Wood Fence"),
	texture = "default_fence_pine_wood.png",
	inventory_image = "default_fence_overlay.png^default_pine_wood.png^" ..
				"default_fence_overlay.png^[makealpha:255,126,126",
	wield_image = "default_fence_overlay.png^default_pine_wood.png^" ..
				"default_fence_overlay.png^[makealpha:255,126,126",
	material = "default:pine_wood",
	groups = {choppy = 3, oddly_breakable_by_hand = 2, flammable = 3},
	sounds = default.node_sound_wood_defaults()
})

default.register_fence("default:fence_aspen_wood", {
	description = S("Aspen Wood Fence"),
	texture = "default_fence_aspen_wood.png",
	inventory_image = "default_fence_overlay.png^default_aspen_wood.png^" ..
				"default_fence_overlay.png^[makealpha:255,126,126",
	wield_image = "default_fence_overlay.png^default_aspen_wood.png^" ..
				"default_fence_overlay.png^[makealpha:255,126,126",
	material = "default:aspen_wood",
	groups = {choppy = 3, oddly_breakable_by_hand = 2, flammable = 3},
	sounds = default.node_sound_wood_defaults()
})

default.register_fence_rail("default:fence_rail_wood", {
	description = S("Apple Wood Fence Rail"),
	texture = "default_fence_rail_wood.png",
	inventory_image = "default_fence_rail_overlay.png^default_wood.png^" ..
				"default_fence_rail_overlay.png^[makealpha:255,126,126",
	wield_image = "default_fence_rail_overlay.png^default_wood.png^" ..
				"default_fence_rail_overlay.png^[makealpha:255,126,126",
	material = "default:wood",
	groups = {choppy = 2, oddly_breakable_by_hand = 2, flammable = 2},
	sounds = default.node_sound_wood_defaults()
})

default.register_fence_rail("default:fence_rail_acacia_wood", {
	description = S("Acacia Wood Fence Rail"),
	texture = "default_fence_rail_acacia_wood.png",
	inventory_image = "default_fence_rail_overlay.png^default_acacia_wood.png^" ..
				"default_fence_rail_overlay.png^[makealpha:255,126,126",
	wield_image = "default_fence_rail_overlay.png^default_acacia_wood.png^" ..
				"default_fence_rail_overlay.png^[makealpha:255,126,126",
	material = "default:acacia_wood",
	groups = {choppy = 2, oddly_breakable_by_hand = 2, flammable = 2},
	sounds = default.node_sound_wood_defaults()
})

default.register_fence_rail("default:fence_rail_junglewood", {
	description = S("Jungle Wood Fence Rail"),
	texture = "default_fence_rail_junglewood.png",
	inventory_image = "default_fence_rail_overlay.png^default_junglewood.png^" ..
				"default_fence_rail_overlay.png^[makealpha:255,126,126",
	wield_image = "default_fence_rail_overlay.png^default_junglewood.png^" ..
				"default_fence_rail_overlay.png^[makealpha:255,126,126",
	material = "default:junglewood",
	groups = {choppy = 2, oddly_breakable_by_hand = 2, flammable = 2},
	sounds = default.node_sound_wood_defaults()
})

default.register_fence_rail("default:fence_rail_pine_wood", {
	description = S("Pine Wood Fence Rail"),
	texture = "default_fence_rail_pine_wood.png",
	inventory_image = "default_fence_rail_overlay.png^default_pine_wood.png^" ..
				"default_fence_rail_overlay.png^[makealpha:255,126,126",
	wield_image = "default_fence_rail_overlay.png^default_pine_wood.png^" ..
				"default_fence_rail_overlay.png^[makealpha:255,126,126",
	material = "default:pine_wood",
	groups = {choppy = 3, oddly_breakable_by_hand = 2, flammable = 3},
	sounds = default.node_sound_wood_defaults()
})

default.register_fence_rail("default:fence_rail_aspen_wood", {
	description = S("Aspen Wood Fence Rail"),
	texture = "default_fence_rail_aspen_wood.png",
	inventory_image = "default_fence_rail_overlay.png^default_aspen_wood.png^" ..
				"default_fence_rail_overlay.png^[makealpha:255,126,126",
	wield_image = "default_fence_rail_overlay.png^default_aspen_wood.png^" ..
				"default_fence_rail_overlay.png^[makealpha:255,126,126",
	material = "default:aspen_wood",
	groups = {choppy = 3, oddly_breakable_by_hand = 2, flammable = 2},
	sounds = default.node_sound_wood_defaults()
})

minetest.register_node("default:glass", {
	description = S("Glass"),
	drawtype = "glasslike_framed_optional",
	tiles = {"default_glass.png", "default_glass_detail.png"},
	use_texture_alpha = "clip", -- only needed for stairs API
	paramtype = "light",
	paramtype2 = "glasslikeliquidlevel",
	sunlight_propagates = true,
	is_ground_content = false,
	groups = {cracky = 3, oddly_breakable_by_hand = 3},
	sounds = default.node_sound_glass_defaults(),
})

minetest.register_node("default:obsidian_glass", {
	description = S("Obsidian Glass"),
	drawtype = "glasslike_framed_optional",
	tiles = {"default_obsidian_glass.png", "default_obsidian_glass_detail.png"},
	use_texture_alpha = "clip", -- only needed for stairs API
	paramtype = "light",
	paramtype2 = "glasslikeliquidlevel",
	is_ground_content = false,
	sunlight_propagates = true,
	sounds = default.node_sound_glass_defaults(),
	groups = {cracky = 3},
})


minetest.register_node("default:brick", {
	description = S("Brick Block"),
	paramtype2 = "facedir",
	place_param2 = 0,
	tiles = {
		"default_brick.png^[transformFX",
		"default_brick.png",
	},
	is_ground_content = false,
	groups = {cracky = 3},
	sounds = default.node_sound_stone_defaults(),
})


minetest.register_node("default:meselamp", {
	description = S("Mese Lamp"),
	drawtype = "glasslike",
	tiles = {"default_meselamp.png"},
	paramtype = "light",
	sunlight_propagates = true,
	is_ground_content = false,
	groups = {cracky = 3, oddly_breakable_by_hand = 3},
	sounds = default.node_sound_glass_defaults(),
	light_source = default.LIGHT_MAX,
})

default.register_mesepost("default:mese_post_light", {
	description = S("Apple Wood Mese Post Light"),
	texture = "default_fence_wood.png",
	material = "default:wood",
})

default.register_mesepost("default:mese_post_light_acacia_wood", {
	description = S("Acacia Wood Mese Post Light"),
	texture = "default_fence_acacia_wood.png",
	material = "default:acacia_wood",
})

default.register_mesepost("default:mese_post_light_junglewood", {
	description = S("Jungle Wood Mese Post Light"),
	texture = "default_fence_junglewood.png",
	material = "default:junglewood",
})

default.register_mesepost("default:mese_post_light_pine_wood", {
	description = S("Pine Wood Mese Post Light"),
	texture = "default_fence_pine_wood.png",
	material = "default:pine_wood",
})

default.register_mesepost("default:mese_post_light_aspen_wood", {
	description = S("Aspen Wood Mese Post Light"),
	texture = "default_fence_aspen_wood.png",
	material = "default:aspen_wood",
})

--
-- Misc
--

minetest.register_node("default:cloud", {
	description = S("Cloud"),
	tiles = {"default_cloud.png"},
	is_ground_content = false,
	sounds = default.node_sound_defaults(),
	groups = {not_in_creative_inventory = 1},
})

--
-- register trees for leafdecay
--

if minetest.get_mapgen_setting("mg_name") == "v6" then
	default.register_leafdecay({
		trunks = {"default:tree"},
		leaves = {"default:apple", "default:leaves"},
		radius = 2,
	})

	default.register_leafdecay({
		trunks = {"default:jungletree"},
		leaves = {"default:jungleleaves"},
		radius = 3,
	})
else
	default.register_leafdecay({
		trunks = {"default:tree"},
		leaves = {"default:apple", "default:leaves"},
		radius = 3,
	})

	default.register_leafdecay({
		trunks = {"default:jungletree"},
		leaves = {"default:jungleleaves"},
		radius = 2,
	})
end

default.register_leafdecay({
	trunks = {"default:pine_tree"},
	leaves = {"default:pine_needles"},
	radius = 3,
})

default.register_leafdecay({
	trunks = {"default:acacia_tree"},
	leaves = {"default:acacia_leaves"},
	radius = 2,
})

default.register_leafdecay({
	trunks = {"default:aspen_tree"},
	leaves = {"default:aspen_leaves"},
	radius = 3,
})

default.register_leafdecay({
	trunks = {"default:bush_stem"},
	leaves = {"default:bush_leaves"},
	radius = 1,
})

default.register_leafdecay({
	trunks = {"default:acacia_bush_stem"},
	leaves = {"default:acacia_bush_leaves"},
	radius = 1,
})

default.register_leafdecay({
	trunks = {"default:pine_bush_stem"},
	leaves = {"default:pine_bush_needles"},
	radius = 1,
})
