-----------------------------------------------------------------------------------------------
-- Ferns - Fern 0.1.0
-----------------------------------------------------------------------------------------------
-- by Mossmanikin
-- License (everything): 	WTFPL
-- Contains code from: 		plants_lib
-- Looked at code from:		default, flowers, painting, trees
-- Dependencies: 			plants_lib
-- Supports:				dryplants, stoneage, sumpf		
-----------------------------------------------------------------------------------------------
-- some inspiration from here
-- https://en.wikipedia.org/wiki/Athyrium_yokoscense
-- http://www.mygarden.net.au/gardening/athyrium-yokoscense/3900/1
-----------------------------------------------------------------------------------------------

assert(abstract_ferns.config.enable_lady_fern == true)

abstract_ferns.grow_fern = function(pos)
	local fern_size = math.random(1,4)
	local right_here = {x=pos.x, y=pos.y+1, z=pos.z}
	local fdir = math.random(0, 179)
	
	if minetest.get_node(right_here).name == "air"
			or minetest.get_node(right_here).name == "default:junglegrass" then
		if fern_size == 1 then
			minetest.set_node(right_here, {name="ferns:fern_01", param2=fdir})
		elseif fern_size < 4 then
			minetest.set_node(right_here, {name="ferns:fern_02", param2=fdir})
		else -- fern_size == 4 then
			minetest.set_node(right_here, {name="ferns:fern_03", param2=fdir})
		end
	end
end

-----------------------------------------------------------------------------------------------
-- FERN (large)
-----------------------------------------------------------------------------------------------
minetest.register_alias("archaeplantae:fern",      "ferns:fern_03") -- support old versions

minetest.register_node("ferns:fern_03", {
	drawtype = "plantlike",
	visual_scale = 2,
	paramtype = "light",
	--tiles = {"[combine:32x32:0,0=top_left.png:0,16=bottom_left.png:16,0=top_right.png:16,16=bottom_right.png"},
	tiles = {"ferns_fern_big.png"},
	walkable = false,
	buildable_to = true,
	groups = {snappy=3,flammable=2,attached_node=1,not_in_creative_inventory=1},
	sounds = default.node_sound_leaves_defaults(),
	selection_box = {
		type = "fixed",
		fixed = {-7/16, -1/2, -7/16, 7/16, 0, 7/16},
	},
	drop = "ferns:fern_01",
})
-----------------------------------------------------------------------------------------------
-- FERN (medium)
-----------------------------------------------------------------------------------------------
minetest.register_alias("archaeplantae:fern_mid",      "ferns:fern_02") -- support old versions

minetest.register_node("ferns:fern_02", {
	drawtype = "plantlike",
	visual_scale = 2,
	paramtype = "light",
	tiles = {"ferns_fern_mid.png"},
	walkable = false,
	buildable_to = true,
	groups = {snappy=3,flammable=2,attached_node=1,not_in_creative_inventory=1},
	sounds = default.node_sound_leaves_defaults(),
	selection_box = {
		type = "fixed",
		fixed = {-7/16, -1/2, -7/16, 7/16, 0, 7/16},
	},
	drop = "ferns:fern_01",
})
-----------------------------------------------------------------------------------------------
-- FERN (small)
-----------------------------------------------------------------------------------------------
minetest.register_alias("archaeplantae:fern_small",      "ferns:fern_01") -- support old versions
minetest.register_alias("ferns:fern_04",      "ferns:fern_02") -- for placing

minetest.register_node("ferns:fern_01", {
	description = "Lady-fern (Athyrium)", -- divinationis
	drawtype = "plantlike",
	paramtype = "light",
	tiles = {"ferns_fern.png"},
	inventory_image = "ferns_fern.png",
	walkable = false,
	buildable_to = true,
	groups = {snappy=3,flammable=2,attached_node=1},
	sounds = default.node_sound_leaves_defaults(),
	selection_box = {
		type = "fixed",
		fixed = {-7/16, -1/2, -7/16, 7/16, 0, 7/16},
	},
	on_place = function(itemstack, placer, pointed_thing)
		-- place a random fern
		local stack = ItemStack("ferns:fern_0"..math.random(1,4))
		local ret = minetest.item_place(stack, placer, pointed_thing)
		return ItemStack("ferns:fern_01 "..itemstack:get_count()-(1-ret:get_count()))
	end,
})
-----------------------------------------------------------------------------------------------
-- Spawning
-----------------------------------------------------------------------------------------------

if abstract_ferns.config.lady_ferns_near_tree == true then
	plantslib:register_generate_plant({ -- near trees (woodlands)
		surface = {
			"default:dirt_with_grass",
			"default:mossycobble",
			"default:desert_sand",
			"default:sand",
			"default:jungletree",
			"stoneage:grass_with_silex",
			"sumpf:sumpf"
		},
		max_count = 30,
		rarity = 62,--63,
		min_elevation = 1, -- above sea level
		near_nodes = {"group:tree"},
		near_nodes_size = 3,--4,
		near_nodes_vertical = 2,--3,
		near_nodes_count = 1,
		plantlife_limit = -0.9,
		humidity_max = -1.0,
		humidity_min = 0.4,
		temp_max = -0.5, -- 55 °C (too hot?)
		temp_min = 0.75, -- -12 °C
	},
	abstract_ferns.grow_fern
	)
end

if abstract_ferns.config.lady_ferns_near_rock == true then
	plantslib:register_generate_plant({ -- near stone (mountains)
		surface = {
			"default:dirt_with_grass",
			"default:mossycobble",
			"group:falling_node",
			--"default:jungletree",
			"stoneage:grass_with_silex",
			"sumpf:sumpf"
		},
		max_count = 35,
		rarity = 40,
		min_elevation = 1, -- above sea level
		near_nodes = {"group:stone"},
		near_nodes_size = 1,
		near_nodes_count = 16,
		plantlife_limit = -0.9,
		humidity_max = -1.0,
		humidity_min = 0.4,
		temp_max = -0.5, -- 55 °C (too hot?)
		temp_min = 0.75, -- -12 °C
	},
	abstract_ferns.grow_fern
	)
end

if abstract_ferns.config.lady_ferns_near_ores == true then -- this one causes a huge fps drop
	plantslib:register_generate_plant({ -- near ores (potential mining sites)
		surface = {
			"default:dirt_with_grass",
			"default:mossycobble",
			"default:stone_with_coal",
			"default:stone_with_iron",
			"moreores:mineral_tin",
			"moreores:mineral_silver",
			"sumpf:sumpf"
		},
		max_count = 1200,--1600, -- maybe too much? :D
		rarity = 25,--15,
		min_elevation = 1, -- above sea level
		near_nodes = {
			"default:stone_with_iron",
			--"default:stone_with_copper",
			--"default:stone_with_mese",
			--"default:stone_with_gold",
			--"default:stone_with_diamond",
			"moreores:mineral_tin",
			"moreores:mineral_silver"
			--"moreores:mineral_mithril"
		},
		near_nodes_size = 2,
		near_nodes_vertical = 4,--5,--6,
		near_nodes_count = 2,--3,
		plantlife_limit = -0.9,
		humidity_max = -1.0,
		humidity_min = 0.4,
		temp_max = -0.5, -- 55 °C (too hot?)
		temp_min = 0.75, -- -12 °C
	},
	abstract_ferns.grow_fern
	)
end

if abstract_ferns.config.lady_ferns_in_groups == true then -- this one is meant as a replacement of Ferns_near_Ores
	plantslib:register_generate_plant({
		surface = {
			"default:dirt_with_grass",
			"default:mossycobble",
			"default:stone_with_coal",
			"default:stone_with_iron",
			"moreores:mineral_tin",
			"moreores:mineral_silver",
			"sumpf:sumpf"
		},
		max_count = 70,
		rarity = 25,--15,
		min_elevation = 1, -- above sea level
		near_nodes = {
			"default:stone"
		},
		near_nodes_size = 2,
		near_nodes_vertical = 2,--6,
		near_nodes_count = 3,
		plantlife_limit = -0.9,
		humidity_max = -1.0,
		humidity_min = 0.4,
		temp_max = -0.5, -- 55 °C (too hot?)
		temp_min = 0.75, -- -12 °C
	},
	abstract_ferns.grow_fern
	)
end