local get_node_or_nil = minetest.get_node_or_nil
local get_item_group = minetest.get_item_group
local max_depth = 31000

local old_is_protected = minetest.is_protected
function minetest.is_protected(pos, name)
	local node = get_node_or_nil(pos)
	if node and get_item_group(node.name, "fortress") ~= 0 then
		return true
	end
	if node and node.name == 'fun_caves:translocator' and (name == '' or not minetest.get_player_by_name(name)) then
		return true
	end
	return old_is_protected(pos, name)
end

-- dirt, cave
local newnode = fun_caves.clone_node("default:dirt")
newnode.drop = "default:dirt"
newnode.groups.soil = 0
minetest.register_node("fun_caves:dirt", newnode)

newnode = fun_caves.clone_node("default:dirt")
newnode.description = "Polluted Dirt"
newnode.tiles = {"default_dirt.png^[colorize:#100020:100"}
newnode.groups.soil = 0
minetest.register_node("fun_caves:polluted_dirt", newnode)

-- ice -- add cold damage
minetest.add_group("default:ice", {surface_cold = 3})

-- ice, thin -- transparent
minetest.register_node("fun_caves:thin_ice", {
	description = "Thin Ice",
	tiles = {"caverealms_thin_ice.png"},
	is_ground_content = true,
	groups = {cracky=3},
	sounds = default.node_sound_glass_defaults(),
	use_texture_alpha = true,
	light_source = 1,
	drawtype = "glasslike",
	sunlight_propagates = true,
	freezemelt = "default:water_source",
	paramtype = "light",
})

minetest.register_node('fun_caves:sticks_default', {
	description = 'Sticks',
	drawtype = 'allfaces_optional',
	waving = 1,
	visual_scale = 1.3,
	tiles = {'fun_caves_dry_twigs.png'},
	paramtype = 'light',
	is_ground_content = false,
	drop = 'default:stick 2',
	groups = {snappy = 3, leafdecay = 3, flammable = 2, leaves = 1},
})

newnode = fun_caves.clone_node("default:leaves")
newnode.description = "Blackened Leaves"
newnode.tiles = {"default_leaves.png^[colorize:#100020:200"}
newnode.special_tiles = {"default_leaves_simple.png^[colorize:#100020:200"}
newnode.groups = {snappy = 3, flammable = 2}
minetest.register_node("fun_caves:leaves_black", newnode)

newnode = fun_caves.clone_node("default:water_source")
newnode.description = "Poisonous Water"
newnode.groups.poison = 3
newnode.light_source = 6
newnode.liquid_alternative_flowing = "fun_caves:water_poison_flowing"
newnode.liquid_alternative_source = "fun_caves:water_poison_source"
newnode.post_effect_color = {a = 103, r = 108, g = 128, b = 64}
newnode.special_tiles[1].name = "fun_caves_water_poison_source_animated.png"
newnode.tiles[1].name = "fun_caves_water_poison_source_animated.png"
minetest.register_node("fun_caves:water_poison_source", newnode)

newnode = fun_caves.clone_node("default:water_flowing")
newnode.description = "Poisonous Water"
newnode.groups.poison = 3
newnode.light_source = 6
newnode.liquid_alternative_flowing = "fun_caves:water_poison_flowing"
newnode.liquid_alternative_source = "fun_caves:water_poison_source"
newnode.post_effect_color = {a = 103, r = 108, g = 128, b = 64}
newnode.special_tiles[1].name = "fun_caves_water_poison_flowing_animated.png"
newnode.tiles[1] = "fun_caves_water_poison.png"
minetest.register_node("fun_caves:water_poison_flowing", newnode)

--minetest.register_node("fun_caves:bright_air", {
--	drawtype = "glasslike",
--	tiles = {"technic_light.png"},
--	paramtype = "light",
--	groups = {not_in_creative_inventory=1},
--	drop = "",
--	walkable = false,
--	buildable_to = true,
--	sunlight_propagates = true,
--	light_source = LIGHT_MAX,
--	pointable = false,
--})

local newnode = fun_caves.clone_node("default:dirt")
newnode.description = "Meteor Crater"
newnode.tiles = {"fun_caves_crater.png", "default_dirt.png", "default_dirt.png", "default_dirt.png", "default_dirt.png", "default_dirt.png"}
newnode.drop = "fun_caves:meteorite"
newnode.groups.soil = 0
minetest.register_node("fun_caves:meteorite_crater", newnode)


newnode = fun_caves.clone_node("default:stone")
newnode.tiles = {'dna.png'}
minetest.register_node("fun_caves:dna", newnode)

newnode = fun_caves.clone_node("farming:straw")
newnode.description = 'Bundle of Grass'
newnode.tiles = {'farming_straw.png^[colorize:#00FF00:50'}
minetest.register_node("fun_caves:bundle_of_grass", newnode)

minetest.register_craft({
	output = 'fun_caves:bundle_of_grass',
	type = 'shapeless',
	recipe = {
		'default:junglegrass', 'default:junglegrass',
		'default:junglegrass', 'default:junglegrass',
	}
})

minetest.register_craft({
	type = "cooking",
	output = "fun_caves:dry_fiber",
	recipe = 'fun_caves:bundle_of_grass',
	cooktime = 3,
})

local function rope_remove(pos)
	for i = 1, 100 do
		local newpos = table.copy(pos)
		newpos.y = newpos.y - i
		local node = minetest.get_node_or_nil(newpos)
		if node and node.name and node.name == 'fun_caves:rope_ladder_piece' then
			minetest.set_node(newpos, {name='air'})
		else
			break
		end
	end
end

local good_params = {nil, true, true, true, true}
for length = 10, 50, 10 do
	minetest.register_node("fun_caves:rope_ladder_"..length, {
		description = "Rope Ladder ("..length.." meter)",
		drawtype = "signlike",
		tiles = {"fun_caves_rope_ladder.png"},
		inventory_image = "fun_caves_rope_ladder.png",
		wield_image = "fun_caves_rope_ladder.png",
		paramtype = "light",
		paramtype2 = "wallmounted",
		sunlight_propagates = true,
		walkable = false,
		climbable = true,
		is_ground_content = false,
		selection_box = {
			type = "wallmounted",
		},
		groups = {snappy = 2, oddly_breakable_by_hand = 3, flammable = 2},
		legacy_wallmounted = true,
		sounds = default.node_sound_leaves_defaults(),
		after_place_node = function(pos, placer, itemstack, pointed_thing)
			if pointed_thing and pointed_thing.above then
				local pos = pointed_thing.above
				local orig = minetest.get_node_or_nil(pos)
				if orig and orig.name and orig.param2 and good_params[orig.param2] then
					for i = 1, length do
						local newpos = table.copy(pos)
						newpos.y = newpos.y - i
						local node = minetest.get_node_or_nil(newpos)
						if node and node.name and node.name == 'air' then
							minetest.set_node(newpos, {name='fun_caves:rope_ladder_piece', param2=orig.param2})
						else
							break
						end
					end
				end
			end
		end,
		on_destruct = rope_remove,
	})

	if length > 10 then
		rec = {}
		for i = 10, length, 10 do
			rec[#rec+1] = 'fun_caves:rope_ladder_10'
		end
		minetest.register_craft({
			output = 'fun_caves:rope_ladder_'..length,
			type = 'shapeless',
			recipe = rec,
		})
	end
end

minetest.register_node("fun_caves:rope_ladder_piece", {
	description = "Rope Ladder",
	drawtype = "signlike",
	tiles = {"fun_caves_rope_ladder.png"},
	inventory_image = "fun_caves_rope_ladder.png",
	wield_image = "fun_caves_rope_ladder.png",
	drop = {},
	paramtype = "light",
	paramtype2 = "wallmounted",
	buildable_to = true,
	sunlight_propagates = true,
	walkable = false,
	climbable = true,
	is_ground_content = false,
	selection_box = {
		type = "wallmounted",
	},
	groups = {snappy = 2, oddly_breakable_by_hand = 3, flammable = 2},
	legacy_wallmounted = true,
	sounds = default.node_sound_leaves_defaults(),
	on_destruct = rope_remove,
})

minetest.register_craft({
	output = 'fun_caves:rope_ladder_10',
	recipe = {
		{'fun_caves:dry_fiber', '', 'fun_caves:dry_fiber'},
		{'fun_caves:dry_fiber', 'fun_caves:dry_fiber', 'fun_caves:dry_fiber'},
		{'fun_caves:dry_fiber', '', 'fun_caves:dry_fiber'},
	}
})