add pl.generate_noise_params()

bushes/init.lua

@@ -12,11 +12,9 @@ abstract_bushes = {}
 
 local bushes_bush_rarity = tonumber(minetest.settings:get("bushes_bush_rarity")) or 99.9
 local bushes_bush_rarity_fertility = tonumber(minetest.settings:get("bushes_bush_rarity_fertility")) or 1.5
-local bushes_bush_fertility = tonumber(minetest.settings:get("bushes_bush_fertility")) or -1
 
 local bushes_youngtrees_rarity = tonumber(minetest.settings:get("bushes_youngtrees_rarity")) or 100
 local bushes_youngtrees_rarity_fertility = tonumber(minetest.settings:get("bushes_youngtrees_rarity_fertility")) or 0.6
-local bushes_youngtrees_fertility = tonumber(minetest.settings:get("bushes_youngtrees_fertility")) or -0.5
 
 
 minetest.register_node("bushes:youngtree2_bottom", {
@@ -218,13 +216,10 @@ pl.register_on_generate({
 			"sumpf:peat",
 			"sumpf:sumpf"
 		},
-		rarity = bushes_bush_rarity,
-		rarity_fertility = bushes_bush_rarity_fertility,
-		plantlife_limit = bushes_bush_fertility,
+		noise_params = pl.generate_noise_params({rarity = bushes_bush_rarity, rarity_fertility = bushes_bush_rarity_fertility}),
 		min_elevation = 1, -- above sea level
 	},
 	"bushes:bushes",
-	nil,
 	abstract_bushes.grow_bush
 )
 
@@ -255,6 +250,7 @@ abstract_bushes.grow_youngtree_node2 = function(pos, height)
 	end
 end
 
+
 pl.register_on_generate({
 		surface = {
 			"default:dirt_with_grass",
@@ -262,12 +258,9 @@ pl.register_on_generate({
 			"sumpf:peat",
 			"sumpf:sumpf"
 		},
-		rarity = bushes_youngtrees_rarity,
-		rarity_fertility = bushes_youngtrees_rarity_fertility,
-		plantlife_limit = bushes_youngtrees_fertility,
+		noise_params = pl.generate_noise_params({rarity = bushes_youngtrees_rarity, rarity_fertility = bushes_youngtrees_rarity_fertility}),
 		min_elevation = 1, -- above sea level
 	},
 	"bushes:youngtrees",
-	nil,
 	abstract_bushes.grow_youngtree2
 )

bushes/mod.conf

@@ -1,3 +1,3 @@
 name = bushes
-depends = default, plantlife_lib
+depends = default, biome_lib
 optional_depends = stoneage, sumpf

dryplants/juncus.lua

@@ -92,44 +92,42 @@ minetest.register_node("dryplants:juncus_02", {
 -- GENERATE SMALL JUNCUS
 -----------------------------------------------------------------------------------------------
 -- near water or swamp
-biome_lib.register_on_generate({
-    surface = {
-		"default:dirt_with_grass",
-		--"default:desert_sand",
-		--"default:sand",
-		"stoneage:grass_with_silex",
-		"sumpf:peat",
-		"sumpf:sumpf"
+pl.register_on_generate({
+		surface = {
+			"default:dirt_with_grass",
+			--"default:desert_sand",
+			--"default:sand",
+			"stoneage:grass_with_silex",
+			"sumpf:peat",
+			"sumpf:sumpf"
+		},
+		noise_params = pl.generate_noise_params({max_count = JUNCUS_NEAR_WATER_PER_MAPBLOCK, rarity = 101 - JUNCUS_NEAR_WATER_RARITY}),
+		min_elevation = 1, -- above sea level
+		near_nodes = {"default:water_source","sumpf:dirtywater_source","sumpf:sumpf"},
+		near_nodes_size = 2,
+		near_nodes_vertical = 1,
+		near_nodes_count = 1,
 	},
-    max_count = JUNCUS_NEAR_WATER_PER_MAPBLOCK,
-    rarity = 101 - JUNCUS_NEAR_WATER_RARITY,
-    min_elevation = 1, -- above sea level
-	near_nodes = {"default:water_source","sumpf:dirtywater_source","sumpf:sumpf"},
-	near_nodes_size = 2,
-	near_nodes_vertical = 1,
-	near_nodes_count = 1,
-    plantlife_limit = -0.9,
-  },
-  abstract_dryplants.grow_juncus
+	"dryplants:juncus_near_water",
+	abstract_dryplants.grow_juncus
 )
 -- at dunes/beach
-biome_lib.register_on_generate({
-    surface = {
-		--"default:dirt_with_grass",
-		--"default:desert_sand",
-		"default:sand",
-		--"stoneage:grass_with_silex",
-		--"sumpf:peat",
-		--"sumpf:sumpf"
+pl.register_on_generate({
+		surface = {
+			--"default:dirt_with_grass",
+			--"default:desert_sand",
+			"default:sand",
+			--"stoneage:grass_with_silex",
+			--"sumpf:peat",
+			--"sumpf:sumpf"
+		},
+		noise_params = pl.generate_noise_params({max_count = JUNCUS_AT_BEACH_PER_MAPBLOCK, rarity = 101 - JUNCUS_AT_BEACH_RARITY}),
+		min_elevation = 1, -- above sea level
+		near_nodes = {"default:dirt_with_grass"},
+		near_nodes_size = 2,
+		near_nodes_vertical = 1,
+		near_nodes_count = 1,
 	},
-    max_count = JUNCUS_AT_BEACH_PER_MAPBLOCK,
-    rarity = 101 - JUNCUS_AT_BEACH_RARITY,
-    min_elevation = 1, -- above sea level
-	near_nodes = {"default:dirt_with_grass"},
-	near_nodes_size = 2,
-	near_nodes_vertical = 1,
-	near_nodes_count = 1,
-    plantlife_limit = -0.9,
-  },
-  abstract_dryplants.grow_juncus
+	"dryplants:junces_at_beach",
+	abstract_dryplants.grow_juncus
 )

dryplants/meadowvariation.lua

@@ -12,14 +12,13 @@ abstract_dryplants.grow_grass_variation = function(pos)
 	minetest.swap_node(right_here, {name="dryplants:grass_short"})
 end
 
-biome_lib.register_on_generate({
+pl.register_on_generate({
     surface = {
-		"default:dirt_with_grass",
-	},
-    max_count = 4800,
-    rarity = 25,
+      "default:dirt_with_grass",
+    },
+    noise_params = pl.generate_noise_params({max_count = 4800, rarity = 25}),
     min_elevation = 1, -- above sea level
-	plantlife_limit = -0.9,
   },
+  "dryplants:grass",
   abstract_dryplants.grow_grass_variation
 )

dryplants/moregrass.lua

@@ -21,20 +21,7 @@ minetest.register_decoration({
 		"sumpf:peat",
 		"sumpf:sumpf"
 	},
-	noise_params = {
-		persist = 0.6,
-		flags = "absvalue",
-		lacunarity = 2,
-		offset = 0,
-		scale = 0.74,
-		spread = {
-			z = 100,
-			x = 100,
-			y = 100
-		},
-		seed = 0,
-		octaves = 3
-	},
+	noise_params = pl.generate_noise_params({max_count = TALL_GRASS_PER_MAPBLOCK, rarity = 101 - TALL_GRASS_RARITY}),
 	flags = "all_floors",
 	deco_type = "simple",
 	y_min = 1,

dryplants/reedmace.lua

@@ -349,66 +349,63 @@ minetest.register_entity("dryplants:reedmace_water_entity",{
 -- GENERATE REEDMACE
 -----------------------------------------------------------------------------------------------
 -- near water or swamp
-biome_lib.register_on_generate({
-    surface = {
-		"default:dirt_with_grass",
-		"default:desert_sand",
-		"stoneage:grass_with_silex",
-		"sumpf:peat",
-		"sumpf:sumpf"
+pl.register_on_generate({
+		surface = {
+			"default:dirt_with_grass",
+			"default:desert_sand",
+			"stoneage:grass_with_silex",
+			"sumpf:peat",
+			"sumpf:sumpf"
+		},
+		noise_params = pl.generate_noise_params({max_count = REEDMACE_NEAR_WATER_PER_MAPBLOCK, rarity = 101 - REEDMACE_NEAR_WATER_RARITY}),
+		--rarity = 60,
+		min_elevation = 1, -- above sea level
+		near_nodes = {"default:water_source","sumpf:dirtywater_source","sumpf:sumpf"},
+		near_nodes_size = 2,
+		near_nodes_vertical = 1,
+		near_nodes_count = 1,
 	},
-    max_count = REEDMACE_NEAR_WATER_PER_MAPBLOCK,
-    rarity = 101 - REEDMACE_NEAR_WATER_RARITY,
-	--rarity = 60,
-    min_elevation = 1, -- above sea level
-	near_nodes = {"default:water_source","sumpf:dirtywater_source","sumpf:sumpf"},
-	near_nodes_size = 2,
-	near_nodes_vertical = 1,
-	near_nodes_count = 1,
-    plantlife_limit = -0.9,
-  },
-  abstract_dryplants.grow_reedmace
+	"dryplants:reedmace_near_water",
+	abstract_dryplants.grow_reedmace
 )
 -- in water
-biome_lib.register_on_generate({
-    surface = {
-		"default:dirt",
-		"default:dirt_with_grass",
-		--"default:desert_sand",
-		--"stoneage:grass_with_silex",
-		"stoneage:sand_with_silex",
-		"sumpf:peat",
-		"sumpf:sumpf"
+pl.register_on_generate({
+		surface = {
+			"default:dirt",
+			"default:dirt_with_grass",
+			--"default:desert_sand",
+			--"stoneage:grass_with_silex",
+			"stoneage:sand_with_silex",
+			"sumpf:peat",
+			"sumpf:sumpf"
+		},
+		noise_params = pl.generate_noise_params({max_count = REEDMACE_IN_WATER_PER_MAPBLOCK, rarity = 101 - REEDMACE_IN_WATER_RARITY}),
+		--rarity = 35,
+		min_elevation = 0, -- a bit below sea level
+		max_elevation = 0, -- ""
+		near_nodes = {"default:water_source","sumpf:dirtywater_source"},
+		near_nodes_size = 1,
+		near_nodes_count = 1,
 	},
-    max_count = REEDMACE_IN_WATER_PER_MAPBLOCK,
-	rarity = 101 - REEDMACE_IN_WATER_RARITY,
-    --rarity = 35,
-    min_elevation = 0, -- a bit below sea level
-	max_elevation = 0, -- ""
-	near_nodes = {"default:water_source","sumpf:dirtywater_source"},
-	near_nodes_size = 1,
-	near_nodes_count = 1,
-    plantlife_limit = -0.9,
-  },
-  abstract_dryplants.grow_reedmace_water
+	"dryplants:reedmace_in_water",
+	abstract_dryplants.grow_reedmace_water
 )
 -- for oases & tropical beaches & tropical swamps
-biome_lib.register_on_generate({
-    surface = {
-		"default:sand",
-		"sumpf:sumpf"
+pl.register_on_generate({
+		surface = {
+			"default:sand",
+			"sumpf:sumpf"
+		},
+		noise_params = pl.generate_noise_params({max_count = REEDMACE_FOR_OASES_PER_MAPBLOCK, 101 - REEDMACE_FOR_OASES_RARITY}),
+		--rarity = 10,
+		neighbors = {"default:water_source","sumpf:dirtywater_source","sumpf:sumpf"},
+		ncount = 1,
+		min_elevation = 1, -- above sea level
+		near_nodes = {"default:desert_sand","sumpf:sumpf"},
+		near_nodes_size = 2,
+		near_nodes_vertical = 1,
+		near_nodes_count = 1,
 	},
-    max_count = REEDMACE_FOR_OASES_PER_MAPBLOCK,
-    rarity = 101 - REEDMACE_FOR_OASES_RARITY,
-	--rarity = 10,
-    neighbors = {"default:water_source","sumpf:dirtywater_source","sumpf:sumpf"},
-	ncount = 1,
-    min_elevation = 1, -- above sea level
-	near_nodes = {"default:desert_sand","sumpf:sumpf"},
-	near_nodes_size = 2,
-	near_nodes_vertical = 1,
-	near_nodes_count = 1,
-    plantlife_limit = -0.9,
-  },
-  abstract_dryplants.grow_reedmace
+	"dryplants:reemace_oases",
+	abstract_dryplants.grow_reedmace
 )

molehills/init.lua

@@ -62,15 +62,14 @@ abstract_molehills.place_molehill = function(pos)
 	end
 end
 
-biome_lib.register_on_generate({
+pl.register_on_generate({
 		surface = {"default:dirt_with_grass"},
-		rarity = molehills_rarity,
-		rarity_fertility = molehills_rarity_fertility,
-		plantlife_limit = molehills_fertility,
+		noise_params = pl.generate_noise_params({rarity = molehills_rarity, rarity_fertility = molehills_rarity_fertility}),
 		min_elevation = 1,
 		max_elevation = 40,
-		avoid_nodes = {"group:tree","group:liquid","group:stone","group:falling_node"--[[,"air"]]},
+		avoid_nodes = {"group:tree","group:liquid","group:stone","group:falling_node"},
 		avoid_radius = 4,
 	},
+	"molehills:molehills",
 	abstract_molehills.place_molehill
 )

pl_seaweed/init.lua

@@ -56,16 +56,16 @@ for i in ipairs(algae_list) do
 			local above_node = minetest.get_node(pt.above)
 			local top_node	 = minetest.get_node(top_pos)
 
-			if biome_lib.get_nodedef_field(under_node.name, "buildable_to") then
+			if pl.get_nodedef_field(under_node.name, "buildable_to") then
 				if under_node.name ~= "default:water_source" then
 					place_pos = pt.under
 				elseif top_node.name ~= "default:water_source"
-							 and biome_lib.get_nodedef_field(top_node.name, "buildable_to") then
+							 and pl.get_nodedef_field(top_node.name, "buildable_to") then
 					place_pos = top_pos
 				else
 					return
 				end
-			elseif biome_lib.get_nodedef_field(above_node.name, "buildable_to") then
+			elseif pl.get_nodedef_field(above_node.name, "buildable_to") then
 				place_pos = pt.above
 			end
 			if not place_pos then return end -- something went wrong :P
@@ -92,7 +92,7 @@ for i in ipairs(algae_list) do
 					minetest.swap_node(place_pos, {name = "flowers:seaweed", param2 = fdir})
 				end
 
-				if not biome_lib.expect_infinite_stacks then
+				if not pl.expect_infinite_stacks then
 					itemstack:take_item()
 				end
 				return itemstack
@@ -111,34 +111,18 @@ pl_seaweed.grow_seaweed = function(pos)
 	minetest.swap_node(right_here, {name=node_name, param2=math.random(1,3)})
 end
 
-pl.register_on_generate({
-        place_on = {
-            "default:water_source"
-        },
-		noise_params = {
-			scale = 0.00234375,
-			offset = 0,
-			seed = 0,
-			octaves = 3,
-			lacunarity = 2,
-			flags = "absvalue",
-			spread = {
-				x = 100,
-				y = 100,
-				z = 100
-			},
-			persist = 0.6
-		},
-		flags = "all_floors",
-		y_min = 1,
-		y_max = 40,
-		near_nodes = {
-            "default:dirt_with_grass"
-        },
-        near_nodes_size = 1
+biome_lib.register_on_generate({
+		surface = {"default:water_source"},
+		max_count = seaweed_max_count,
+		rarity = seaweed_rarity,
+		min_elevation = 1,
+		max_elevation = 40,
+		near_nodes = {"default:dirt_with_grass"},
+		near_nodes_size = 4,
+		near_nodes_vertical = 1,
+		near_nodes_count = 1,
+		plantlife_limit = -0.9,
 	},
-	"pl_seaweed:water_grass",
-	nil,
 	pl_seaweed.grow_seaweed
 )
 

plantlife_lib/init.lua

@@ -11,10 +11,9 @@ function pl.get_def_from_id(id)
 	end
 end
 
-function pl.register_on_generate(def, plantname, index, func)
-	if not index then index = 1 end -- Do we need `index`?
+function pl.register_on_generate(def, plantname, func)
 	local deco_def = {
-		name = plantname .. "_" .. index,
+		name = plantname,
 		deco_type = "simple",
 		place_on = def.place_on or def.surface,
 		sidelen = 16,
@@ -43,6 +42,11 @@ function pl.register_on_generate(def, plantname, index, func)
 		end
 		deco_def.near_nodes_count = def.near_nodes_count or 1
 	end
+	-- handle ncount/neighbors
+	if def.ncount and def.neighbors then
+		deco_def.ncount = def.ncount
+		deco_def.neighbors = def.neighbors
+	end
 	-- save def
 	local next = #deco + 1
 	deco[next] = {}
@@ -60,14 +64,24 @@ minetest.register_on_mods_loaded(function()
         deco[k][1].id = id
 		table.insert(ids, id)
     end
-	-- print(dump2(ids))
+	print(dump2(ids))
     minetest.set_gen_notify("decoration", ids)
 	-- print(dump(deco))
 end)
 
 local function place_handler(t)
 	local def = pl.get_def_from_id(t.id)
-	local p_top = {x = pos.x, y = pos.y + 1, z = pos.z}
+
+	-- ncount/neighbors handler
+	if def.ncount and
+		#minetest.find_nodes_in_area(
+			{x = t.pos.x-1, y = t.pos.y, z = t.pos.z-1},
+			{x = t.pos.x+1, y = t.pos.y, z = t.pos.z+1},
+			def.neighbors
+		) <= def.ncount then
+			print("return due ncount")
+		return -- Not enough similar biome nodes around
+	end
 
 	-- near nodes handler
 	if def.near_nodes and
@@ -76,11 +90,12 @@ local function place_handler(t)
 			{x = t.pos.x+def.near_nodes_size, y = t.pos.y+def.near_nodes_vertical, z = t.pos.z+def.near_nodes_size},
 			def.near_nodes
 		) < def.near_nodes_count then
-		return -- Long distance neighbours do not match
+		return -- Long distance neighbors do not match
 	end
 
 	-- avoid nodes handler
 	if def.avoid_nodes and def.avoid_radius then
+		local p_top = {x = t.pos.x, y = t.pos.y + 1, z = t.pos.z}
 		if minetest.find_node_near(p_top, def.avoid_radius + math.random(-1.5,2), def.avoid_nodes) then
 			return
 		end
@@ -93,8 +108,9 @@ local function place_handler(t)
 	-- some fun
 	local player = minetest.get_player_by_name("Niklp")
 	-- player:set_pos(t.pos)
+	t.pos.y = t.pos.y + 3
 	minetest.add_particle({
-		pos = p_top,
+		pos = t.pos,
 		expirationtime = 15,
 		playername = player:get_player_name(),
 		glow = minetest.LIGHT_MAX,

plantlife_lib/util.lua

@@ -11,4 +11,32 @@ if minetest.get_modpath("unified_inventory") or not minetest.settings:get_bool("
 	pl.expect_infinite_stacks = false
 else
 	pl.expect_infinite_stacks = true
+end
+
+-- Noise param helper
+local function set_defaults(biome)
+	biome.seed_diff = biome.seed_diff or 0
+	biome.rarity = biome.rarity or 50
+	biome.rarity_fertility = biome.rarity_fertility or 0
+	biome.max_count = biome.max_count or 125
+
+	return biome
+end
+
+function pl.generate_noise_params(b)
+	local biome = set_defaults(b)
+	local r = (100-biome.rarity)/100
+	local mc = math.min(biome.max_count, 6400)/6400
+
+	local noise_params = {
+		octaves = biome_lib.fertile_perlin_octaves,
+		persist = biome_lib.fertile_perlin_persistence * (100/biome_lib.fertile_perlin_scale),
+		scale = math.min(r, mc),
+		seed = biome.seed_diff,
+		offset = 0,
+		spread = {x = 100, y = 100, z = 100},
+		lacunarity = 2,
+		flags = "absvalue"
+	}
+	return noise_params
 end

trunks/generating.lua

@@ -152,52 +152,34 @@ abstract_trunks.place_twig = function(pos)
 end
 
 if Twigs_on_ground == true then
-biome_lib.register_on_generate({
+pl.register_on_generate({
     surface = {"default:dirt_with_grass"},
-    max_count = Twigs_on_ground_Max_Count,
-    rarity = Twigs_on_ground_Rarity,
+	noise_params = pl.generate_noise_params({max_count = Twigs_on_ground_Max_Count, rarity = Twigs_on_ground_Rarity}),
     min_elevation = 1,
 	max_elevation = 40,
 	near_nodes = {"group:tree","ferns:fern_03","ferns:fern_02","ferns:fern_01"},
 	near_nodes_size = 3,
 	near_nodes_vertical = 1,
 	near_nodes_count = 1,
-    plantlife_limit = -0.9,
   },
+  "trunks:on_grass",
   abstract_trunks.place_twig
 )
 end
 
 if Twigs_on_water == true then
 pl.register_on_generate({
-		place_on = {
-			"default:water_source"
-		},
-		noise_params = {
-			flags = "absvalue",
-			offset = 0,
-			scale = 0.05,
-			spread = {
-				z = 100,
-				x = 100,
-				y = 100
-			},
-			seed = 0,
-			octaves = 3,
-			lacunarity = 2,
-			persist = 0.6
-		},
-		flags = "all_floors",
-		y_min = 1,
-		y_max = 40,
-		near_nodes = {"group:tree"},
-		near_nodes_size = 3,
-		near_nodes_vertical = 1,
-		near_nodes_count = 1
-	},
-	"trunks:on_water",
-	nil,
-	abstract_trunks.place_twig
+    surface = {"default:water_source"},
+	noise_params = pl.generate_noise_params({max_count = Twigs_on_water_Max_Count, rarity = Twigs_on_water_Rarity}),
+    min_elevation = 1,
+	max_elevation = 40,
+	near_nodes = {"group:tree"},
+	near_nodes_size = 3,
+	near_nodes_vertical = 1,
+	near_nodes_count = 1,
+  },
+  "trunks:on_water",
+  abstract_trunks.place_twig
 )
 end
 
@@ -338,10 +320,9 @@ abstract_trunks.place_trunk = function(pos)
 	end
 end
 
-biome_lib.register_on_generate({
+pl.register_on_generate({
     surface = {"default:dirt_with_grass"},
-    max_count = Trunks_Max_Count, -- 320,
-    rarity = Trunks_Rarity, -- 99,
+	noise_params = pl.generate_noise_params({max_count = Trunks_Max_Count, rarity = Trunks_Rarity}),
     min_elevation = 1,
 	max_elevation = 40,
 	avoid_nodes = {"group:tree"},
@@ -350,8 +331,8 @@ biome_lib.register_on_generate({
 	near_nodes_size = 3,
 	near_nodes_vertical = 1,
 	near_nodes_count = 1,
-    plantlife_limit = -0.9,
   },
+  "trunks:on_grass_2",
   abstract_trunks.place_trunk
 )
 
@@ -373,42 +354,22 @@ abstract_trunks.grow_moss_on_ground = function(pos)
 end
 
 pl.register_on_generate({
-        y_max = 40,
-        flags = "all_floors",
-        deco_type = "simple",
-        place_on = {
-			"default:dirt_with_grass"
-        },
-        noise_params = {
-			offset = 0,
-			scale = 0.1,
-			persist = 0.6,
-			seed = 0,
-			octaves = 3,
-			lacunarity = 2,
-			flags = "absvalue",
-			spread = {
-				x = 100,
-				y = 100,
-				z = 100
-			}
-        },
-        flags = "all_floors",
-		y_min = 1, 
-		y_max = 40,
-		near_nodes = {
-			"group:tree",
-			"ferns:fern_03",
-			"ferns:fern_02",
-			"ferns:fern_01"
-		},
-		near_nodes_size = 2,
-		near_nodes_vertical = 1,
-		near_nodes_count = 1
+    surface = {"default:dirt_with_grass"},
+	noise_params = pl.generate_noise_params({max_count = Moss_on_ground_Max_Count, rarity = Moss_on_ground_Rarity}),
+    min_elevation = 1,
+	max_elevation = 40,
+	near_nodes = {
+		"group:tree",
+		"ferns:fern_03",
+		"ferns:fern_02",
+		"ferns:fern_01"
 	},
-	"trunks:on_dirt_with_grass",
-	nil,
-	abstract_trunks.grow_moss_on_ground
+	near_nodes_size = 2,
+	near_nodes_vertical = 1,
+	near_nodes_count = 1,
+  },
+  "trunks:on_grass_3",
+  abstract_trunks.grow_moss_on_ground
 )
 end
 
@@ -493,15 +454,11 @@ pl.register_on_generate({
 		"moretrees:willow_trunk",
 		"default:mossycobble"
 	},
-    max_count = Moss_on_trunk_Max_Count,
-    rarity = Moss_on_trunk_Rarity,
+	noise_params = pl.generate_noise_params({max_count = Moss_on_trunk_Max_Count, rarity = Moss_on_trunk_Rarity}),
     min_elevation = 1,
 	max_elevation = 40,
-    plantlife_limit = -0.9,
-	check_air = false,
   },
-  "trunks:grow_moss_on_trunk",
-  nil,
+  "trunks:moss_on_trunk",
   abstract_trunks.grow_moss_on_trunk
 )
 end
@@ -547,20 +504,18 @@ abstract_trunks.grow_roots = function(pos)
 	end
 end
 
-biome_lib.register_on_generate({
+pl.register_on_generate({
     surface = {"group:tree"},
-    max_count = 1000,
-    rarity = 1,
+	noise_params = pl.generate_noise_params({max_count = 1000, rarity = 1,}),
     min_elevation = 1,
 	max_elevation = 40,
 	near_nodes = {"default:dirt_with_grass"},
 	near_nodes_size = 1,
 	near_nodes_vertical = 1,
 	near_nodes_count = 1,
-    plantlife_limit = -1,
-    check_air = false,
   },
-  "abstract_trunks.grow_roots"
+  "trunks:grow_roots",
+  abstract_trunks.grow_roots
 )
 
 end

woodsoils/generating.lua

@@ -73,44 +73,28 @@ abstract_woodsoils.place_soil = function(pos)
 	end
 end
 
-pl.register_on_generate({
-		place_on = {
-			"group:tree",
-			"ferns:fern_03",
-			"ferns:fern_02",
-			"ferns:fern_01"
-		},
-        noise_params = {
-			flags = "absvalue",
-			offset = 0,
-			scale = 0.15625,
-			spread = {
-				x = 100,
-				y = 100,
-				z = 100
-			},
-			seed = 0,
-			octaves = 3,
-			persist = 0.6,
-			lacunarity = 2
-        },
-		flags = "all_floors,force_placement",
-		y_min = 1,
-        y_max = 40,
-		near_nodes = {
-			"group:tree",
-			"ferns:fern_03",
-			"ferns:fern_02",
-			"ferns:fern_01"
-		},
-        near_nodes_count = 4
+biome_lib.register_on_generate({
+    surface = {
+		"group:tree",
+		"ferns:fern_03",
+		"ferns:fern_02",
+		"ferns:fern_01"
 	},
-	"woodsoils:place_soil",
-	nil,
-	abstract_woodsoils.place_soil
+    max_count = 1000,
+    rarity = 1,
+    min_elevation = 1,
+	max_elevation = 40,
+	near_nodes = {"group:tree","ferns:fern_03","ferns:fern_02","ferns:fern_01"},
+	near_nodes_size = 5,
+	near_nodes_vertical = 1,
+	near_nodes_count = 4,
+    plantlife_limit = -1,
+    check_air = false,
+  },
+  "abstract_woodsoils.place_soil"
 )
 
-pl.register_on_generate({
+biome_lib.register_on_generate({
     surface = {
 		"moretrees:apple_tree_sapling_ongen",
 		"moretrees:beech_sapling_ongen",
@@ -131,9 +115,7 @@ pl.register_on_generate({
 	plantlife_limit = -0.9,
     check_air = false,
   },
-  "woodsoils:place_soil_ongen",
-  nil,
-  abstract_woodsoils.place_soil
+  "abstract_woodsoils.place_soil"
 )
 
 minetest.register_abm({

youngtrees/init.lua

@@ -134,7 +134,7 @@ abstract_youngtrees.grow_youngtree_node = function(pos, height)
 end
 
 
-pl.register_on_generate({
+biome_lib.register_on_generate({
 		surface = {
 			"default:dirt_with_grass",
 			"stoneage:grass_with_silex",
@@ -146,7 +146,5 @@ pl.register_on_generate({
 		plantlife_limit = youngtrees_youngtrees_fertility,
 		min_elevation = 1, -- above sea level
 	},
-	"youngtrees:youngtrees",
-	nil,
 	abstract_youngtrees.grow_youngtree
 )

youngtrees/mod.conf

@@ -1,2 +1,2 @@
 name = youngtrees
-depends =  default, plantlife_lib
+depends =  default, biome_lib