Merge remote-tracking branch 'upstream/master'

* Permet de les dropper quand on récolte le bloc où ils sont attachés.

bushes/init.lua

@@ -314,4 +314,6 @@ minetest.register_on_generated(function(minp, maxp, blockseed)
 	for _, pos in ipairs(locations) do
 		grow_youngtree2(pos)
 	end
-end)
+end)
+
+minetest.log("action", "[bushes] loaded.")

bushes_classic/nodes.lua

@@ -4,6 +4,8 @@ local S = minetest.get_translator("bushes_classic")
 plantlife_bushes = {}
 
 -- TODO: add support for nodebreakers? those dig like mese picks
+local random = math.random
+
 plantlife_bushes.after_dig_node = function(pos, oldnode, oldmetadata, digger)
 	if not (digger and pos and oldnode) then
 		return
@@ -63,7 +65,7 @@ plantlife_bushes.after_dig_node = function(pos, oldnode, oldmetadata, digger)
 
 		-- with a chance of 1/3, return 2 bushes
 		local amount
-		if can_harvest and math.random(1,3) == 1 then
+		if can_harvest and random(1,3) == 1 then
 			amount = "2"
 		else
 			amount = "1"
@@ -75,7 +77,7 @@ plantlife_bushes.after_dig_node = function(pos, oldnode, oldmetadata, digger)
 	elseif groupcaps.choppy then
 
 		-- the amount of sticks may vary
-		local amount = math.random(4, 20)
+		local amount = random(4, 20)
 		-- return some sticks
 		harvested = "default:stick " .. amount
 
@@ -136,7 +138,7 @@ minetest.register_abm({
 			local dirt = minetest.get_node(dirtpos)
 			local is_soil = minetest.get_item_group(dirt.name, "soil") or minetest.get_item_group(dirt.name, "potting_soil")
 
-			if is_soil and (dirt.name == "farming:soil_wet" or math.random(1,3) == 1) then
+			if is_soil and (dirt.name == "farming:soil_wet" or random(1,3) == 1) then
 				minetest.swap_node( pos, {name = "bushes:" .. bush_name .. "_bush"})
 			end
 		end
@@ -159,7 +161,6 @@ for i, bush_name in ipairs(bushes_classic.bushes) do
 		paramtype2 = "facedir",
 		on_use = minetest.item_eat(18),
 		groups = { dig_immediate = 3 },
-		is_ground_content = false,
 	})
 
 
@@ -211,5 +212,4 @@ minetest.register_node(":bushes:basket_empty", {
 	paramtype = "light",
 	paramtype2 = "facedir",
     groups = { dig_immediate = 3 },
-	is_ground_content = false,
 })

cavestuff/nodes.lua

@@ -1,6 +1,8 @@
 -- support for i18n
 local S = minetest.get_translator("cavestuff")
 
+local random = math.random
+
 --Rocks
 
 local cbox = {
@@ -15,12 +17,12 @@ minetest.register_node("cavestuff:pebble_1",{
 	tiles = {"undergrowth_pebble.png"},
 	paramtype = "light",
 	paramtype2 = "facedir",
-	groups = {cracky=3, stone=1, attached_node=1, dig_immediate=3},
+	groups = {cracky=3, stone=1, attached_node=1},
 	selection_box = cbox,
 	collision_box = cbox,
 	on_place = function(itemstack, placer, pointed_thing)
 		-- place a random pebble node
-		local stack = ItemStack("cavestuff:pebble_"..math.random(1,2))
+		local stack = ItemStack("cavestuff:pebble_"..random(1,2))
 		local ret = minetest.item_place(stack, placer, pointed_thing)
 		return ItemStack("cavestuff:pebble_1 "..itemstack:get_count()-(1-ret:get_count()))
 	end,
@@ -34,7 +36,7 @@ minetest.register_node("cavestuff:pebble_2",{
 	drop = "cavestuff:pebble_1",
 	paramtype = "light",
 	paramtype2 = "facedir",
-	groups = {cracky=3, stone=1, attached_node=1, not_in_creative_inventory=1, dig_immediate=3},
+	groups = {cracky=3, stone=1, attached_node=1, not_in_creative_inventory=1},
 	selection_box = cbox,
 	collision_box = cbox,
 	sounds = default.node_sound_stone_defaults(),
@@ -47,12 +49,12 @@ minetest.register_node("cavestuff:desert_pebble_1",{
 	 tiles = {"default_desert_stone.png"},
 	 paramtype = "light",
 	paramtype2 = "facedir",
-	 groups = {cracky=3, stone=1, attached_node=1, dig_immediate=3},
+	 groups = {cracky=3, stone=1, attached_node=1},
 	selection_box = cbox,
 	collision_box = cbox,
 	 on_place = function(itemstack, placer, pointed_thing)
 		-- place a random pebble node
-		local stack = ItemStack("cavestuff:desert_pebble_"..math.random(1,2))
+		local stack = ItemStack("cavestuff:desert_pebble_"..random(1,2))
 		local ret = minetest.item_place(stack, placer, pointed_thing)
 		return ItemStack("cavestuff:desert_pebble_1 "..itemstack:get_count()-(1-ret:get_count()))
 	end,
@@ -66,7 +68,7 @@ minetest.register_node("cavestuff:desert_pebble_2",{
 	 tiles = {"default_desert_stone.png"},
 	 paramtype = "light",
 	paramtype2 = "facedir",
-	 groups = {cracky=3, stone=1, attached_node=1, not_in_creative_inventory=1, dig_immediate=3},
+	 groups = {cracky=3, stone=1, attached_node=1, not_in_creative_inventory=1},
 	selection_box = cbox,
 	collision_box = cbox,
 	 sounds = default.node_sound_stone_defaults(),
@@ -78,7 +80,6 @@ minetest.register_node("cavestuff:stalactite_1",{
 	drawtype="nodebox",
 	tiles = {"undergrowth_pebble.png"},
 	groups = {cracky=3,attached_node=1},
-	is_ground_content = false,
 	description = S("Stalactite"),
 	paramtype = "light",
 	paramtype2 = "wallmounted",
@@ -125,7 +126,6 @@ minetest.register_node("cavestuff:stalactite_2",{
 	drawtype="nodebox",
 	tiles = {"undergrowth_pebble.png"},
 	groups = {cracky=3,attached_node=1,not_in_creative_inventory=1},
-	is_ground_content = false,
 	drop = "cavestuff:stalactite_1",
 	paramtype = "light",
 	paramtype2 = "wallmounted",
@@ -144,7 +144,6 @@ minetest.register_node("cavestuff:stalactite_3",{
 	drawtype="nodebox",
 	tiles = {"undergrowth_pebble.png"},
 	groups = {cracky=3,attached_node=1,not_in_creative_inventory=1},
-	is_ground_content = false,
 	drop = "cavestuff:stalactite_1",
 	paramtype = "light",
 	paramtype2 = "wallmounted",

dryplants/init.lua

@@ -119,7 +119,6 @@ minetest.register_node("dryplants:grass", {
         fixed = {-0.5   , -0.5   , -0.5   ,   0.5   , -0.4375,  0.5   },
     },
 	groups = {snappy=3, flammable=2},
-	is_ground_content = false,
 	sounds = default.node_sound_leaves_defaults(),
 })
 
@@ -152,7 +151,6 @@ minetest.register_node("dryplants:hay", {
         fixed = {-0.5   , -0.5   , -0.5   ,   0.5   , -0.4375,  0.5   },
     },
 	groups = {snappy=3, flammable=2},
-	is_ground_content = false,
 	sounds = default.node_sound_leaves_defaults(),
 })
 

dryplants/juncus.lua

@@ -153,4 +153,4 @@ minetest.register_on_generated(function(minp, maxp, blockseed)
 	for _, pos in ipairs(locations) do
 		grow_juncus(pos)
 	end
-end)
+end)

dryplants/reed.lua

@@ -44,7 +44,6 @@ minetest.register_node("dryplants:wetreed_slab", {
 		fixed = {-1/2, -1/2, -1/2, 1/2, 0, 1/2},
 	},
 	groups = {snappy=3, flammable=2},
-	is_ground_content = false,
 	sounds = default.node_sound_leaves_defaults(),
 })
 
@@ -73,7 +72,6 @@ minetest.register_node("dryplants:wetreed_roof", {
 		}
 	},
 	groups = {snappy=3, flammable=2},
-	is_ground_content = false,
 	sounds = default.node_sound_leaves_defaults(),
 })
 
@@ -196,7 +194,6 @@ minetest.register_node("dryplants:wetreed_roof_corner", {
 		}
 	},
 	groups = {snappy=3, flammable=2},
-	is_ground_content = false,
 	sounds = default.node_sound_leaves_defaults(),
 })
 
@@ -227,7 +224,6 @@ minetest.register_node("dryplants:wetreed_roof_corner_2", {
 		}
 	},
 	groups = {snappy=3, flammable=2},
-	is_ground_content = false,
 	sounds = default.node_sound_leaves_defaults(),
 })
 
@@ -267,7 +263,6 @@ minetest.register_node("dryplants:reed", {
 	paramtype2 = "facedir",
 	tiles = {"dryplants_reed.png"},
 	groups = {snappy=3, flammable=2},
-	is_ground_content = false,
 	sounds = default.node_sound_leaves_defaults(),
 })
 
@@ -289,7 +284,6 @@ minetest.register_node("dryplants:reed_slab", {
 		fixed = {-1/2, -1/2, -1/2, 1/2, 0, 1/2},
 	},
 	groups = {snappy=3, flammable=2},
-	is_ground_content = false,
 	sounds = default.node_sound_leaves_defaults(),
 })
 
@@ -318,7 +312,6 @@ minetest.register_node("dryplants:reed_roof", {
 		}
 	},
 	groups = {snappy=3, flammable=2},
-	is_ground_content = false,
 	sounds = default.node_sound_leaves_defaults(),
 })
 
@@ -349,7 +342,6 @@ minetest.register_node("dryplants:reed_roof_corner", {
 		}
 	},
 	groups = {snappy=3, flammable=2},
-	is_ground_content = false,
 	sounds = default.node_sound_leaves_defaults(),
 })
 
@@ -380,6 +372,5 @@ minetest.register_node("dryplants:reed_roof_corner_2", {
 		}
 	},
 	groups = {snappy=3, flammable=2},
-	is_ground_content = false,
 	sounds = default.node_sound_leaves_defaults(),
 })

dryplants/reedmace.lua

@@ -88,7 +88,6 @@ minetest.register_node("dryplants:reedmace_spikes", {
 		flammable=2,
 		not_in_creative_inventory=1
 	},
-	is_ground_content = false,
 	drop = 'dryplants:reedmace_sapling',
 	sounds = default.node_sound_leaves_defaults(),
 	selection_box = {
@@ -111,7 +110,6 @@ minetest.register_node("dryplants:reedmace_top", {
 		flammable=2,
 		not_in_creative_inventory=1
 	},
-	is_ground_content = false,
 	drop = 'dryplants:reedmace_sapling',
 	sounds = default.node_sound_leaves_defaults(),
 	selection_box = {
@@ -135,7 +133,6 @@ minetest.register_node("dryplants:reedmace_height_2", {
 		flammable=2--,
 		--not_in_creative_inventory=1
 	},
-	is_ground_content = false,
 	drop = 'dryplants:reedmace_sapling',
 	sounds = default.node_sound_leaves_defaults(),
 	selection_box = {
@@ -159,7 +156,6 @@ minetest.register_node("dryplants:reedmace_height_3", {
 		flammable=2--,
 		--not_in_creative_inventory=1
 	},
-	is_ground_content = false,
 	drop = 'dryplants:reedmace_sapling',
 	sounds = default.node_sound_leaves_defaults(),
 	selection_box = {
@@ -183,7 +179,6 @@ minetest.register_node("dryplants:reedmace_height_3_spikes", {
 		flammable=2--,
 		--not_in_creative_inventory=1
 	},
-	is_ground_content = false,
 	drop = 'dryplants:reedmace_sapling',
 	sounds = default.node_sound_leaves_defaults(),
 	selection_box = {
@@ -206,7 +201,6 @@ minetest.register_node("dryplants:reedmace", {
 		flammable=2,
 		not_in_creative_inventory=1
 	},
-	is_ground_content = false,
 	drop = 'dryplants:reedmace_sapling',
 	sounds = default.node_sound_leaves_defaults(),
 	selection_box = {
@@ -237,7 +231,6 @@ minetest.register_node("dryplants:reedmace_bottom", {
 		flammable=2,
 		not_in_creative_inventory=1
 	},
-	is_ground_content = false,
 	drop = 'dryplants:reedmace_sapling',
 	sounds = default.node_sound_leaves_defaults(),
 	selection_box = {

ferns/crafting.lua

@@ -79,3 +79,31 @@ minetest.register_craft({
 	output = "dye:green",
 	recipe = {"group:horsetail"},
 })
+-----------------------------------------------------------------------------------------------
+-- GLUE WOODEN TOOLS with RESIN & POLISH them with HORSETAIL (planned)
+-----------------------------------------------------------------------------------------------
+--[[minetest.register_craft({
+	type = "shapeless",
+	output = "default:pick_wood",
+	recipe = {"default:pick_wood","group:horsetail","farming:string","default:stick"},
+})
+minetest.register_craft({
+	type = "shapeless",
+	output = "default:shovel_wood",
+	recipe = {"default:shovel_wood","group:horsetail","farming:string","default:stick"},
+})
+minetest.register_craft({
+	type = "shapeless",
+	output = "default:axe_wood",
+	recipe = {"default:axe_wood","group:horsetail","farming:string","default:stick"},
+})
+minetest.register_craft({
+	type = "shapeless",
+	output = "default:sword_wood",
+	recipe = {"default:sword_wood","group:horsetail","farming:string","default:stick"},
+})
+minetest.register_craft({
+	type = "shapeless",
+	output = "farming:hoe_wood",
+	recipe = {"farming:hoe_wood","group:horsetail","farming:string","default:stick"},
+})]]

ferns/fern.lua

@@ -4,6 +4,7 @@
 -- by Mossmanikin
 -- Contains code from:		biome_lib
 -- Looked at code from:		default, flowers, painting, trees
+-- Dependencies:			biome_lib
 -- Supports:				dryplants, stoneage, sumpf
 -----------------------------------------------------------------------------------------------
 -- some inspiration from here
@@ -11,10 +12,19 @@
 -- http://www.mygarden.net.au/gardening/athyrium-yokoscense/3900/1
 -----------------------------------------------------------------------------------------------
 
-minetest.register_alias("ferns:fern_03", "default:fern_3")
-minetest.register_alias("ferns:fern_02", "default:fern_2")
-minetest.register_alias("ferns:fern_01", "default:fern_1")
+assert(abstract_ferns.config.enable_lady_fern == true)
 
+-- support for i18n
+local S = minetest.get_translator("ferns")
+
+-- Maintain backward compatibilty
+-- minetest-0.5: Begin
+local default_ferns = minetest.registered_items["default:fern_1"] or false
+if default_ferns then
+	minetest.register_alias("ferns:fern_03", "default:fern_3")
+	minetest.register_alias("ferns:fern_02", "default:fern_2")
+	minetest.register_alias("ferns:fern_01", "default:fern_1")
+end
 -- minetest-0.5: End
 minetest.register_alias("archaeplantae:fern",		"ferns:fern_03")
 minetest.register_alias("archaeplantae:fern_mid",	"ferns:fern_02")
@@ -23,87 +33,183 @@ minetest.register_alias("ferns:fern_04",		"ferns:fern_02") -- for placing
 
 local nodenames = {}
 
+local function create_nodes()
+	local images	= { "ferns_fern.png", "ferns_fern_mid.png", "ferns_fern_big.png" }
+	local vscales	= { 1, math.sqrt(8), math.sqrt(11) }
+	local descs		= { S("Lady-fern (Athyrium)"), nil, nil }
+
+	for i = 1, 3 do
+		local node_on_place = nil
+		if i == 1 then
+			node_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()))	-- TODO FIXME?
+			end
+		end
+		nodenames[i] = "ferns:fern_"..string.format("%02d", i)
+		minetest.register_node(nodenames[i], {
+			description = descs[i] or (S("Lady-fern (Athyrium)").." " .. string.format("%02d", i)),
+			inventory_image = "ferns_fern.png",
+			drawtype = "plantlike",
+			visual_scale = vscales[i],
+			paramtype = "light",
+			tiles = { images[i] },
+			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",
+			on_place = node_on_place
+		})
+	end
+end
+
 -----------------------------------------------------------------------------------------------
 -- Init
 -----------------------------------------------------------------------------------------------
 
-for i = 1, 3 do
-	nodenames[i] = "ferns:fern_"..string.format("%02d", i)
+if default_ferns then
+	for i = 1, 3 do
+		nodenames[i] = "ferns:fern_"..string.format("%02d", i)
+	end
+else
+	create_nodes()
 end
 
 -----------------------------------------------------------------------------------------------
 -- Spawning
 -----------------------------------------------------------------------------------------------
 
-minetest.register_decoration({ -- near trees (woodlands)
-	decoration = nodenames,
-	deco_type = "simple",
-	flags = "all_floors",
-	place_on = {
-		"default:dirt_with_grass",
-		"default:mossycobble",
-		"default:desert_sand",
-		"default:sand",
-		"default:jungletree",
-		"stoneage:grass_with_silex",
-		"sumpf:sumpf"
+if abstract_ferns.config.lady_ferns_near_tree == true then
+	biome_lib.register_on_generate({ -- 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
+		random_facedir = { 0, 179 },
 	},
-	y_min = 1, -- above sea level
-	param2 = 0,
-	param2_max = 179,
-	spawn_by = "group:tree",
-	num_spawn_by = 1,
-	fill_ratio = 0.1,
-})
+	nodenames
+	)
+end
 
-minetest.register_decoration({ -- near stone (mountains)
-	decoration = nodenames,
-	deco_type = "simple",
-	flags = "all_floors",
-	place_on = {
-		"default:dirt_with_grass",
-		"default:mossycobble",
-		"group:falling_node",
-		--"default:jungletree",
-		"stoneage:grass_with_silex",
-		"sumpf:sumpf"
+if abstract_ferns.config.lady_ferns_near_rock == true then
+	biome_lib.register_on_generate({ -- 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
+		random_facedir = { 0, 179 },
 	},
-	y_min = 1, -- above sea level
-	param2 = 0,
-	param2_max = 179,
-	spawn_by = "group:stone",
-	num_spawn_by = 1,
-	fill_ratio = 0.3,
-})
+	nodenames
+	)
+end
 
-minetest.register_decoration({ -- near stone (mountains)
-	decoration = nodenames,
-	deco_type = "simple",
-	flags = "all_floors",
-	place_on = {
-		"default:dirt_with_grass",
-		"default:mossycobble",
-		"default:stone_with_coal",
-		"default:stone_with_iron",
-		"default:stone_with_tin",
-		"moreores:mineral_tin",
-		"moreores:mineral_silver",
-		"sumpf:sumpf"
+if abstract_ferns.config.lady_ferns_near_ores == true then -- this one causes a huge fps drop
+	biome_lib.register_on_generate({ -- near ores (potential mining sites)
+		surface = {
+			"default:dirt_with_grass",
+			"default:mossycobble",
+			"default:stone_with_coal",
+			"default:stone_with_iron",
+			"default:stone_with_tin", -- minetest >= 0.4.16
+			"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",
+			"default:stone_with_tin", -- minetest >= 0.4.16
+			"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
+		random_facedir = { 0, 179 },
 	},
-	y_min = 1, -- above sea level
-	param2 = 0,
-	param2_max = 179,
-	spawn_by = {
-		"default:stone_with_iron",
-		--"default:stone_with_copper",
-		--"default:stone_with_mese",
-		--"default:stone_with_gold",
-		--"default:stone_with_diamond",
-		"default:stone_with_tin",
-		"moreores:mineral_tin",
-		"moreores:mineral_silver"
-		--"moreores:mineral_mithril"
+	nodenames
+	)
+end
+
+if abstract_ferns.config.lady_ferns_in_groups == true then -- this one is meant as a replacement of Ferns_near_Ores
+	biome_lib.register_on_generate({
+		surface = {
+			"default:dirt_with_grass",
+			"default:mossycobble",
+			"default:stone_with_coal",
+			"default:stone_with_iron",
+			"default:stone_with_tin", -- minetest >= 0.4.16
+			"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
+		random_facedir = { 0, 179 },
 	},
-	num_spawn_by = 1,
-	fill_ratio = 0.8,
-})
+	nodenames
+	)
+end

ferns/gianttreefern.lua

@@ -7,6 +7,8 @@
 -- Supports:				vines
 -----------------------------------------------------------------------------------------------
 
+assert(abstract_ferns.config.enable_giant_treefern == true)
+
 -- support for i18n
 local S = minetest.get_translator("ferns")
 -- lot of code, lot to load
@@ -136,7 +138,6 @@ minetest.register_node("ferns:tree_fern_leaves_giant", {
 		attached_node=1,
 		not_in_creative_inventory=1
 	},
-	is_ground_content = false,
 	drop = {
 		max_items = 2,
 		items = {
@@ -178,7 +179,6 @@ minetest.register_node("ferns:tree_fern_leave_big", {
 		attached_node=1,
 		not_in_creative_inventory=1
 	},
-	is_ground_content = false,
 	drop = "",
 	sounds = default.node_sound_leaves_defaults(),
 	after_destruct = function(pos,oldnode)
@@ -217,7 +217,6 @@ minetest.register_node("ferns:tree_fern_leave_big_end", {
 		attached_node=1,
 		not_in_creative_inventory=1
 	},
-	is_ground_content = false,
 	drop = "",
 	sounds = default.node_sound_leaves_defaults(),
 })
@@ -256,7 +255,6 @@ minetest.register_node("ferns:fern_trunk_big_top", {
 		not_in_creative_inventory=1,
 		leafdecay=3 -- to support vines
 	},
-	is_ground_content = false,
 	drop = "ferns:fern_trunk_big",
 	sounds = default.node_sound_wood_defaults(),
 })
@@ -283,15 +281,17 @@ minetest.register_node("ferns:fern_trunk_big", {
 		fixed = {-1/4, -1/2, -1/4, 1/4, 1/2, 1/4},
 	},
 	groups = {tree=1,choppy=2,oddly_breakable_by_hand=2,flammable=3,wood=1},
-	is_ground_content = false,
 	sounds = default.node_sound_wood_defaults(),
-	after_destruct = function(pos,oldnode)
-        local node = minetest.get_node({x=pos.x,y=pos.y+1,z=pos.z})
-        if node.name == "ferns:fern_trunk_big" or node.name == "ferns:fern_trunk_big_top" then
-            minetest.dig_node({x=pos.x,y=pos.y+1,z=pos.z})
-            minetest.add_item(pos,"ferns:fern_trunk_big")
-        end
-    end,
+	after_dig_node = function(pos, node, metadata, digger)
+		if digger == nil then return end
+		local np = {x=pos.x,y=pos.y+1,z=pos.z}
+		local nn = minetest.get_node(np)
+		if nn.name == "ferns:fern_trunk_big" or
+			nn.name == "ferns:fern_trunk_big_top"
+		then
+			minetest.node_dig(np, nn, digger)
+		end
+	end,
 })
 
 -----------------------------------------------------------------------------------------------
@@ -329,50 +329,54 @@ minetest.register_abm({
 -----------------------------------------------------------------------------------------------
 
 -- in jungles
-biome_lib.register_on_generate({
-	surface = {
-		"default:dirt_with_grass",
-		"default:dirt_with_rainforest_litter", -- minetest >= 0.4.16
-		"default:sand",
-		"default:desert_sand"--,
-		--"dryplants:grass_short"
+if abstract_ferns.config.enable_giant_treeferns_in_jungle == true then
+	biome_lib.register_on_generate({
+		surface = {
+			"default:dirt_with_grass",
+			"default:dirt_with_rainforest_litter", -- minetest >= 0.4.16
+			"default:sand",
+			"default:desert_sand"--,
+			--"dryplants:grass_short"
+		},
+		max_count = 12,--27,
+		avoid_nodes = {"group:tree"},
+		avoid_radius = 3,--4,
+		rarity = 85,
+		seed_diff = 329,
+		min_elevation = 1,
+		near_nodes = {"default:jungletree"},
+		near_nodes_size = 6,
+		near_nodes_vertical = 2,--4,
+		near_nodes_count = 1,
+		plantlife_limit = -0.9,
 	},
-	max_count = 12,--27,
-	avoid_nodes = {"group:tree"},
-	avoid_radius = 3,--4,
-	rarity = 85,
-	seed_diff = 329,
-	min_elevation = 1,
-	near_nodes = {"default:jungletree"},
-	near_nodes_size = 6,
-	near_nodes_vertical = 2,--4,
-	near_nodes_count = 1,
-	plantlife_limit = -0.9,
-},
-abstract_ferns.grow_giant_tree_fern
-)
+	abstract_ferns.grow_giant_tree_fern
+	)
+end
 
 -- for oases & tropical beaches
-biome_lib.register_on_generate({
-	surface = {
-		"default:sand"--,
-		--"default:desert_sand"
+if abstract_ferns.config.enable_giant_treeferns_in_oases == true then
+	biome_lib.register_on_generate({
+		surface = {
+			"default:sand"--,
+			--"default:desert_sand"
+		},
+		max_count = 10,--27,
+		rarity = 90,
+		seed_diff = 329,
+		neighbors = {"default:desert_sand"},
+		ncount = 1,
+		min_elevation = 1,
+		near_nodes = {"default:water_source", "default:river_water_source"},
+		near_nodes_size = 2,
+		near_nodes_vertical = 1,
+		near_nodes_count = 1,
+		plantlife_limit = -0.9,
+		humidity_max = -1.0,
+		humidity_min = 1.0,
+		temp_max = -1.0,
+		temp_min = 1.0,
 	},
-	max_count = 10,--27,
-	rarity = 90,
-	seed_diff = 329,
-	neighbors = {"default:desert_sand"},
-	ncount = 1,
-	min_elevation = 1,
-	near_nodes = {"default:water_source", "default:river_water_source"},
-	near_nodes_size = 2,
-	near_nodes_vertical = 1,
-	near_nodes_count = 1,
-	plantlife_limit = -0.9,
-	humidity_max = -1.0,
-	humidity_min = 1.0,
-	temp_max = -1.0,
-	temp_min = 1.0,
-},
-abstract_ferns.grow_giant_tree_fern
-)
+	abstract_ferns.grow_giant_tree_fern
+	)
+end

ferns/horsetail.lua

@@ -8,6 +8,8 @@
 -- Supports:				dryplants, stoneage, sumpf
 -----------------------------------------------------------------------------------------------
 
+assert(abstract_ferns.config.enable_horsetails == true)
+
 -- support for i18n
 local S = minetest.get_translator("ferns")
 -----------------------------------------------------------------------------------------------
@@ -69,45 +71,101 @@ end
 
 create_nodes()
 
+-----------------------------------------------------------------------------------------------
+-- Spawning
+-----------------------------------------------------------------------------------------------
+if abstract_ferns.config.enable_horsetails_spawning == true then
+	minetest.register_abm({
+		nodenames = {
+			"default:dirt_with_grass",
+			"default:dirt_with_coniferous_litter",
+			"default:desert_sand",
+			"default:sand",
+			"dryplants:grass_short",
+			"stoneage:grass_with_silex",
+			"default:mossycobble",
+			"default:gravel"
+		},
+		interval = 1200,
+		chance = 400,
+		label = "[ferns] spawn horsetails",
+		min_y = 1,
+		max_y = 48,
+		action = function(pos, node)
+			local p_top = {x = pos.x, y = pos.y + 1, z = pos.z}
+			local n_top = minetest.get_node_or_nil(p_top)
+			if not n_top or n_top.name ~= "air" then return end
+
+			local NEAR_DST = 2
+			if #minetest.find_nodes_in_area(
+					{x=pos.x-NEAR_DST, y=pos.y-1, z=pos.z-NEAR_DST},
+					{x=pos.x+NEAR_DST, y=pos.y+1, z=pos.z+NEAR_DST},
+					{"default:water_source","default:river_water_source","default:gravel"}
+				) < 1 then return
+			end
+
+			local plant_to_spawn = node_names[math.random(1, #node_names)]
+
+			minetest.swap_node(p_top, {name = plant_to_spawn, param2 = 0})
+		end
+	})
+end
+
 -----------------------------------------------------------------------------------------------
 -- Generating
 -----------------------------------------------------------------------------------------------
 
-minetest.register_decoration({ -- near trees (woodlands)
-	decoration = node_names,
-	deco_type = "simple",
-	flags = "all_floors",
-	place_on = {
-		"default:dirt_with_grass",
-		"default:dirt_with_coniferous_litter",
-		"sumpf:sumpf"
+if abstract_ferns.config.enable_horsetails_on_grass == true then
+	biome_lib.register_on_generate({
+		surface = {
+			"default:dirt_with_grass",
+			"default:dirt_with_coniferous_litter", -- minetest >= 0.5
+			"sumpf:sumpf"
+		},
+		max_count = 35,
+		rarity = 40,
+		min_elevation = 1, -- above sea level
+		near_nodes = {
+			"group:water", -- likes water (of course)
+			"default:gravel", -- near those on gravel
+			"default:sand", -- some like sand
+			"default:clay", -- some like clay
+			"stoneage:grass_with_silex",
+			"default:mossycobble",
+			"default:cobble",
+			"sumpf:sumpf"
+		},
+		near_nodes_size = 3,
+		near_nodes_vertical = 2,--3,
+		near_nodes_count = 1,
+		plantlife_limit = -0.9,
+		humidity_min = 0.4,
+		temp_max = -0.5, -- 55 °C
+		temp_min = 0.53, -- 0 °C, dies back in winter
+		--random_facedir = { 0, 179 },
 	},
-	y_min = 1, -- above sea level
-	spawn_by = {
-		"group:water", -- likes water (of course)
-		"default:gravel", -- near those on gravel
-		"default:sand", -- some like sand
-		"default:clay", -- some like clay
-		"stoneage:grass_with_silex",
-		"default:mossycobble",
-		"default:cobble",
-		"sumpf:sumpf"
-	},
-	num_spawn_by = 1,
-	fill_ratio = 0.1,
-})
+	node_names
+	)
+end
 
-minetest.register_decoration({ -- near trees (woodlands)
-	decoration = node_names,
-	deco_type = "simple",
-	flags = "all_floors",
-	place_on = {
-		"default:gravel", -- roots go deep
-		"default:mossycobble",
-		"stoneage:dirt_with_silex",
-		"stoneage:grass_with_silex",
-		"stoneage:sand_with_silex", -- roots go deep
+if abstract_ferns.config.enable_horsetails_on_stones == true then
+	biome_lib.register_on_generate({
+		surface = {
+			"default:gravel", -- roots go deep
+			"default:mossycobble",
+			"stoneage:dirt_with_silex",
+			"stoneage:grass_with_silex",
+			"stoneage:sand_with_silex", -- roots go deep
+		},
+		max_count = 35,
+		rarity = 20,
+		min_elevation = 1, -- above sea level
+		plantlife_limit = -0.9,
+		humidity_min = 0.4,
+		temp_max = -0.5, -- 55 °C
+		temp_min = 0.53, -- 0 °C, dies back in winter
+		--random_facedir = { 0, 179 },
 	},
-	y_min = 1, -- above sea level
-	fill_ratio = 0.1,
-})
+	node_names
+	)
+end

ferns/init.lua

@@ -1,7 +1,21 @@
 abstract_ferns = {}
 
-dofile(minetest.get_modpath("ferns").."/fern.lua")
-dofile(minetest.get_modpath("ferns").."/horsetail.lua")
-dofile(minetest.get_modpath("ferns").."/treefern.lua")
-dofile(minetest.get_modpath("ferns").."/gianttreefern.lua")
+dofile(minetest.get_modpath("ferns").."/settings.lua")
+
+if abstract_ferns.config.enable_lady_fern == true then
+	dofile(minetest.get_modpath("ferns").."/fern.lua")
+end
+
+if abstract_ferns.config.enable_horsetails == true then
+	dofile(minetest.get_modpath("ferns").."/horsetail.lua")
+end
+
+if abstract_ferns.config.enable_treefern == true then
+	dofile(minetest.get_modpath("ferns").."/treefern.lua")
+end
+
+if abstract_ferns.config.enable_giant_treefern == true then
+	dofile(minetest.get_modpath("ferns").."/gianttreefern.lua")
+end
+
 dofile(minetest.get_modpath("ferns").."/crafting.lua")

ferns/mod.conf

@@ -1,2 +1,2 @@
 name = ferns
-depends = default
+depends = default, biome_lib

ferns/settings.lua

@@ -0,0 +1,43 @@
+-- In case you don't wanna have errors:
+
+-- Only change what's behind a "=" (or "--").
+-- Don't use caps (behind a "=").
+
+-- If there's a "false" (behind a "=") you can change it to "true" (and the other way around).
+-- Spelling is important.
+-- If "true" or "false" is necessary as setting, everything(!) which is not spelled "true" will be read as if it were "false" (even "1", "True"...)
+
+-- If you wanna comment something (for example to remember the default value), you can do this by putting "--" in front of the comment.
+-- You can put "--" at the end of a line with "=" in it, or at the beginning of an empty/new line (minetest will ignore what's behind it then).
+-- But don't put "--" in front of a line with "=" in it (or else minetest will ignore the setting and you might get an error).
+
+-- If something is still unclear, don't hesitate to post your question @ https://forum.minetest.net/viewtopic.php?id=6921
+
+abstract_ferns.config = {}
+
+-- Which plants should generate/spawn?
+abstract_ferns.config.enable_lady_fern			= true
+abstract_ferns.config.enable_horsetails			= true
+abstract_ferns.config.enable_treefern			= true
+abstract_ferns.config.enable_giant_treefern		= true
+
+-- Where should they generate/spawn? (if they generate/spawn)
+--
+--  Lady-Fern
+abstract_ferns.config.lady_ferns_near_tree = true
+abstract_ferns.config.lady_ferns_near_rock = true
+abstract_ferns.config.lady_ferns_near_ores = true				-- if there's a bunch of ferns there's ores nearby, this one causes a huge fps drop
+abstract_ferns.config.lady_ferns_in_groups = false				-- this one is meant as a replacement of Ferns_near_Ores: ferns tend to generate in groups, less fps drop, no hint for nearby ores
+--
+--	Horsetails
+abstract_ferns.config.enable_horsetails_spawning	= false		-- horsetails will grow in already explored areas, over time, near water or gravel
+abstract_ferns.config.enable_horsetails_on_grass	= true		-- on dirt with grass and swamp (sumpf mod)
+abstract_ferns.config.enable_horsetails_on_stones	= true		-- on gravel, mossy cobble and silex (stoneage mod)
+--
+-- Tree_Fern
+abstract_ferns.config.enable_treeferns_in_jungle	= true
+abstract_ferns.config.enable_treeferns_in_oases		= true		-- for oases and tropical beaches
+--
+-- Giant_Tree_Fern
+abstract_ferns.config.enable_giant_treeferns_in_jungle	= true
+abstract_ferns.config.enable_giant_treeferns_in_oases	= true	-- for oases and tropical beaches