Fix trunk duplication

to use "." instead of ":" notation
(quells all those "deprecated" warnings)

bushes/init.lua

@@ -188,7 +188,7 @@ abstract_bushes.grow_bush_node = function(pos,dir, leaf_type)
 end
 
 
-biome_lib:register_generate_plant({
+biome_lib.register_on_generate({
     surface = {
 		"default:dirt_with_grass",
 		"stoneage:grass_with_silex",
@@ -230,7 +230,7 @@ abstract_bushes.grow_youngtree_node2 = function(pos, height)
 end
 
 
-biome_lib:register_generate_plant({
+biome_lib.register_on_generate({
     surface = {
 		"default:dirt_with_grass",
 		"stoneage:grass_with_silex",

bushes_classic/init.lua

@@ -30,7 +30,7 @@ local modpath = minetest.get_modpath('bushes_classic')
 dofile(modpath..'/cooking.lua')
 dofile(modpath..'/nodes.lua')
 
-biome_lib:spawn_on_surfaces({
+biome_lib.register_active_spawner({
 	spawn_delay = 3600,
 	spawn_plants = bushes_classic.spawn_list,
 	avoid_radius = 10,

cavestuff/mapgen.lua

@@ -1,6 +1,6 @@
 --Map Generation Stuff
 
-biome_lib:register_generate_plant(
+biome_lib.register_on_generate(
 	{
 		surface = {
 			"default:dirt_with_grass",
@@ -20,7 +20,7 @@ biome_lib:register_generate_plant(
 	}
 )
 
-biome_lib:register_generate_plant(
+biome_lib.register_on_generate(
 	{
 		surface = {
 			"default:desert_sand",

dryplants/juncus.lua

@@ -95,7 +95,7 @@ minetest.register_node("dryplants:juncus_02", {
 -- GENERATE SMALL JUNCUS
 -----------------------------------------------------------------------------------------------
 -- near water or swamp
-biome_lib:register_generate_plant({
+biome_lib.register_on_generate({
     surface = {
 		"default:dirt_with_grass",
 		--"default:desert_sand",
@@ -116,7 +116,7 @@ biome_lib:register_generate_plant({
   abstract_dryplants.grow_juncus
 )
 -- at dunes/beach
-biome_lib:register_generate_plant({
+biome_lib.register_on_generate({
     surface = {
 		--"default:dirt_with_grass",
 		--"default:desert_sand",

dryplants/meadowvariation.lua

@@ -11,7 +11,7 @@ abstract_dryplants.grow_grass_variation = function(pos)
 	minetest.swap_node(pos, {name="dryplants:grass_short"})
 end
 
-biome_lib:register_generate_plant({
+biome_lib.register_on_generate({
     surface = {
 		"default:dirt_with_grass",
 	},

dryplants/moregrass.lua

@@ -7,7 +7,7 @@
 -- Looked at code from:		default
 -----------------------------------------------------------------------------------------------
 
-biome_lib:register_generate_plant(
+biome_lib.register_on_generate(
 	{
 		surface = {
 			"default:dirt_with_grass",

dryplants/reedmace.lua

@@ -330,7 +330,7 @@ minetest.register_entity("dryplants:reedmace_water_entity",{
 -----------------------------------------------------------------------------------------------
 -- SPAWN REEDMACE
 -----------------------------------------------------------------------------------------------
---[[biome_lib:spawn_on_surfaces({
+--[[biome_lib.register_active_spawner({
 	spawn_delay = 1200,
 	spawn_plants = {"dryplants:reedmace_sapling"},
 	spawn_chance = 400,
@@ -351,7 +351,7 @@ minetest.register_entity("dryplants:reedmace_water_entity",{
 -- GENERATE REEDMACE
 -----------------------------------------------------------------------------------------------
 -- near water or swamp
-biome_lib:register_generate_plant({
+biome_lib.register_on_generate({
     surface = {
 		"default:dirt_with_grass",
 		"default:desert_sand",
@@ -372,7 +372,7 @@ biome_lib:register_generate_plant({
   abstract_dryplants.grow_reedmace
 )
 -- in water
-biome_lib:register_generate_plant({
+biome_lib.register_on_generate({
     surface = {
 		"default:dirt",
 		"default:dirt_with_grass",
@@ -395,7 +395,7 @@ biome_lib:register_generate_plant({
   abstract_dryplants.grow_reedmace_water
 )
 -- for oases & tropical beaches & tropical swamps
-biome_lib:register_generate_plant({
+biome_lib.register_on_generate({
     surface = {
 		"default:sand",
 		"sumpf:sumpf"

ferns/fern.lua

@@ -87,7 +87,7 @@ end
 -----------------------------------------------------------------------------------------------
 
 if abstract_ferns.config.lady_ferns_near_tree == true then
-	biome_lib:register_generate_plant({ -- near trees (woodlands)
+	biome_lib.register_on_generate({ -- near trees (woodlands)
 		surface = {
 			"default:dirt_with_grass",
 			"default:mossycobble",
@@ -116,7 +116,7 @@ if abstract_ferns.config.lady_ferns_near_tree == true then
 end
 
 if abstract_ferns.config.lady_ferns_near_rock == true then
-	biome_lib:register_generate_plant({ -- near stone (mountains)
+	biome_lib.register_on_generate({ -- near stone (mountains)
 		surface = {
 			"default:dirt_with_grass",
 			"default:mossycobble",
@@ -143,7 +143,7 @@ if abstract_ferns.config.lady_ferns_near_rock == true then
 end
 
 if abstract_ferns.config.lady_ferns_near_ores == true then -- this one causes a huge fps drop
-	biome_lib:register_generate_plant({ -- near ores (potential mining sites)
+	biome_lib.register_on_generate({ -- near ores (potential mining sites)
 		surface = {
 			"default:dirt_with_grass",
 			"default:mossycobble",
@@ -183,7 +183,7 @@ if abstract_ferns.config.lady_ferns_near_ores == true then -- this one causes a
 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_generate_plant({
+	biome_lib.register_on_generate({
 		surface = {
 			"default:dirt_with_grass",
 			"default:mossycobble",

ferns/gianttreefern.lua

@@ -298,7 +298,7 @@ minetest.register_abm({
 
 -- in jungles
 if abstract_ferns.config.enable_giant_treeferns_in_jungle == true then
-	biome_lib:register_generate_plant({
+	biome_lib.register_on_generate({
 		surface = {
 			"default:dirt_with_grass",
 			"default:dirt_with_rainforest_litter", -- minetest >= 0.4.16
@@ -324,7 +324,7 @@ end
 
 -- for oases & tropical beaches
 if abstract_ferns.config.enable_giant_treeferns_in_oases == true then
-	biome_lib:register_generate_plant({
+	biome_lib.register_on_generate({
 		surface = {
 			"default:sand"--,
 			--"default:desert_sand"

ferns/horsetail.lua

@@ -75,7 +75,7 @@ create_nodes()
 -- Spawning
 -----------------------------------------------------------------------------------------------
 if abstract_ferns.config.enable_horsetails_spawning == true then
-	biome_lib:spawn_on_surfaces({
+	biome_lib.register_active_spawner({
 		spawn_delay = 1200,
 		spawn_plants = node_names,
 		spawn_chance = 400,
@@ -104,7 +104,7 @@ end
 -----------------------------------------------------------------------------------------------
 
 if abstract_ferns.config.enable_horsetails_on_grass == true then
-	biome_lib:register_generate_plant({
+	biome_lib.register_on_generate({
 		surface = {
 			"default:dirt_with_grass",
 			"default:dirt_with_coniferous_litter", -- minetest >= 0.5
@@ -137,7 +137,7 @@ if abstract_ferns.config.enable_horsetails_on_grass == true then
 end
 
 if abstract_ferns.config.enable_horsetails_on_stones == true then
-	biome_lib:register_generate_plant({
+	biome_lib.register_on_generate({
 		surface = {
 			"default:gravel", -- roots go deep
 			"default:mossycobble",

ferns/treefern.lua

@@ -179,7 +179,7 @@ minetest.register_abm({
 
 -- in jungles
 if abstract_ferns.config.enable_treeferns_in_jungle == true then
-	biome_lib:register_generate_plant({
+	biome_lib.register_on_generate({
 		surface = {
 			"default:dirt_with_grass",
 			"default:dirt_with_rainforest_litter", -- minetest >= 0.4.16
@@ -208,7 +208,7 @@ end
 
 -- for oases & tropical beaches
 if abstract_ferns.config.enable_treeferns_in_oases == true then
-	biome_lib:register_generate_plant({
+	biome_lib.register_on_generate({
 		surface = {
 			"default:sand"--,
 			--"default:desert_sand"

flowers_plus/init.lua

@@ -80,16 +80,16 @@ for i in ipairs(lilies_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 biome_lib.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 biome_lib.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 biome_lib.get_nodedef_field(above_node.name, "buildable_to") then
 				place_pos = pt.above
 			end
 
@@ -180,18 +180,19 @@ 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 biome_lib.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 biome_lib.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 biome_lib.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
 
 			if not minetest.is_protected(place_pos, placer:get_player_name()) then
 
@@ -245,7 +246,7 @@ minetest.register_node(":flowers:sunflower", {
 	walkable = false,
 	buildable_to = true,
 	is_ground_content = true,
-	groups = { dig_immediate=3, flora=1, flammable=3 },
+	groups = { dig_immediate=3, flora=1, flammable=3, attached_node=1 },
 	sounds = default.node_sound_leaves_defaults(),
 	selection_box = box,
 	collision_box = box,
@@ -301,7 +302,7 @@ flowers_plus.grow_waterlily = function(pos)
 	end
 end
 
-biome_lib:register_generate_plant({
+biome_lib.register_on_generate({
     surface = {"default:water_source"},
     max_count = lilies_max_count,
     rarity = lilies_rarity,
@@ -323,7 +324,7 @@ flowers_plus.grow_seaweed = function(pos)
 	minetest.swap_node(right_here, {name="along_shore:seaweed_"..random(1,4), param2=random(1,3)})
 end
 
-biome_lib:register_generate_plant({
+biome_lib.register_on_generate({
     surface = {"default:water_source"},
     max_count = seaweed_max_count,
     rarity = seaweed_rarity,
@@ -340,7 +341,7 @@ biome_lib:register_generate_plant({
 
 -- seaweed at beaches
 -- MM: not satisfied with it, but IMHO some beaches should have some algae
-biome_lib:register_generate_plant({
+biome_lib.register_on_generate({
     surface = {"default:water_source"},
     max_count = seaweed_max_count,
     rarity = seaweed_rarity,
@@ -356,7 +357,7 @@ biome_lib:register_generate_plant({
   },
   flowers_plus.grow_seaweed
 )
-biome_lib:register_generate_plant({
+biome_lib.register_on_generate({
     surface = {"default:sand"},
     max_count = seaweed_max_count*2,
     rarity = seaweed_rarity/2,
@@ -373,7 +374,7 @@ biome_lib:register_generate_plant({
   flowers_plus.grow_seaweed
 )
 
-biome_lib:register_generate_plant({
+biome_lib.register_on_generate({
 	surface = {"default:dirt_with_grass"},
 	avoid_nodes = { "flowers:sunflower" },
 	max_count = sunflowers_max_count,
@@ -388,7 +389,7 @@ biome_lib:register_generate_plant({
 
 -- spawn ABM registrations
 
-biome_lib:spawn_on_surfaces({
+biome_lib.register_active_spawner({
 	spawn_delay = SPAWN_DELAY/2,
 	spawn_plants = {
 		"flowers:waterlily",
@@ -410,7 +411,7 @@ biome_lib:spawn_on_surfaces({
 	random_facedir = {0,3}
 })
 
-biome_lib:spawn_on_surfaces({
+biome_lib.register_active_spawner({
 	spawn_delay = SPAWN_DELAY*2,
 	spawn_plants = {"flowers:seaweed"},
 	spawn_chance = SPAWN_CHANCE*2,
@@ -423,7 +424,7 @@ biome_lib:spawn_on_surfaces({
 	facedir = 1
 })
 
-biome_lib:spawn_on_surfaces({
+biome_lib.register_active_spawner({
 	spawn_delay = SPAWN_DELAY*2,
 	spawn_plants = {"flowers:seaweed"},
 	spawn_chance = SPAWN_CHANCE*2,
@@ -437,7 +438,7 @@ biome_lib:spawn_on_surfaces({
 	facedir = 1
 })
 
-biome_lib:spawn_on_surfaces({
+biome_lib.register_active_spawner({
 	spawn_delay = SPAWN_DELAY*2,
 	spawn_plants = {"flowers:seaweed"},
 	spawn_chance = SPAWN_CHANCE*2,
@@ -451,7 +452,7 @@ biome_lib:spawn_on_surfaces({
 	facedir = 1
 })
 
-biome_lib:spawn_on_surfaces({
+biome_lib.register_active_spawner({
 	spawn_delay = SPAWN_DELAY*2,
 	spawn_plants = {"flowers:sunflower"},
 	spawn_chance = SPAWN_CHANCE*2,

molehills/init.lua

@@ -62,7 +62,7 @@ abstract_molehills.place_molehill = function(pos)
 	end
 end
 
-biome_lib:register_generate_plant({
+biome_lib.register_on_generate({
     surface = {"default:dirt_with_grass"},
     max_count = Molehills_Max_Count,
     rarity = Molehills_Rarity,

poisonivy/init.lua

@@ -70,7 +70,7 @@ minetest.register_node('poisonivy:climbing', {
 	buildable_to = true,
 })
 
-biome_lib:spawn_on_surfaces({
+biome_lib.register_active_spawner({
 	spawn_delay = SPAWN_DELAY,
 	spawn_plants = {"poisonivy:seedling"},
 	avoid_radius = 10,
@@ -83,7 +83,7 @@ biome_lib:spawn_on_surfaces({
 	verticals_list = walls_list
 })
 
-biome_lib:grow_plants({
+biome_lib.update_plant({
 	grow_delay = SPAWN_DELAY,
 	grow_chance = GROW_CHANCE,
 	grow_plant = "poisonivy:seedling",
@@ -91,7 +91,7 @@ biome_lib:grow_plants({
 	grow_nodes = {"default:dirt_with_grass"}
 })
 
-biome_lib:grow_plants({
+biome_lib.update_plant({
 	grow_delay = GROW_DELAY,
 	grow_chance = GROW_CHANCE*2,
 	grow_plant = "poisonivy:climbing",

trunks/generating.lua

@@ -48,128 +48,146 @@ abstract_trunks.place_twig = function(pos)
 	end
 --	big twigs
 	if Big_Twigs == true then
+		local n1, n2
+		local r1, r2
 --	big twig 1
-	if twig_size == 17 then
-		if not (minetest.registered_nodes[minetest.get_node({x=pos.x+1,y=pos.y,z=pos.z+1}).name].buildable_to
-			or minetest.registered_nodes[minetest.get_node({x=pos.x+1,y=pos.y,z=pos.z}).name].buildable_to) then
-
-			if minetest.registered_nodes[node_here.name].buildable_to then
-				minetest.swap_node(right_here, {name="trunks:twig_5"})
+		if twig_size == 17 then
+			n1 = minetest.get_node({x=pos.x+1,y=pos.y,z=pos.z+1})
+			n2 = minetest.get_node({x=pos.x+1,y=pos.y,z=pos.z})
+			r1 = n1 and minetest.registered_nodes[n1.name]
+			r2 = n2 and minetest.registered_nodes[n2.name]
+			if not (r1 and r1.buildable_to or r2 and r2.buildable_to) then
+				if minetest.registered_nodes[node_here.name].buildable_to then
+					minetest.swap_node(right_here, {name="trunks:twig_5"})
+				end
+				if minetest.registered_nodes[node_n_e.name].buildable_to then
+					minetest.swap_node(north_east, {name="trunks:twig_7"})
+				end
+				if minetest.registered_nodes[node_east.name].buildable_to then
+					minetest.swap_node(east,		  {name="trunks:twig_8"})
+				end
 			end
-			if minetest.registered_nodes[node_n_e.name].buildable_to then
-				minetest.swap_node(north_east, {name="trunks:twig_7"})
+		elseif twig_size == 18 then
+			n1 = minetest.get_node({x=pos.x+1,y=pos.y,z=pos.z-1})
+			n2 = minetest.get_node({x=pos.x,y=pos.y,z=pos.z-1})
+			r1 = n1 and minetest.registered_nodes[n1.name]
+			r2 = n2 and minetest.registered_nodes[n2.name]
+			if not (r1 and r1.buildable_to or r2 and r2.buildable_to) then
+				if minetest.registered_nodes[node_here.name].buildable_to then
+					minetest.swap_node(right_here, {name="trunks:twig_5", param2=1})
+				end
+				if minetest.registered_nodes[node_s_e.name].buildable_to then
+					minetest.swap_node(south_east, {name="trunks:twig_7", param2=1})
+				end
+				if minetest.registered_nodes[node_south.name].buildable_to then
+					minetest.swap_node(south,	  {name="trunks:twig_8", param2=1})
+				end
 			end
-			if minetest.registered_nodes[node_east.name].buildable_to then
-				minetest.swap_node(east,		  {name="trunks:twig_8"})
+		elseif twig_size == 19 then
+			n1 = minetest.get_node({x=pos.x+1,y=pos.y,z=pos.z-1})
+			n2 = minetest.get_node({x=pos.x-1,y=pos.y,z=pos.z})
+			r1 = n1 and minetest.registered_nodes[n1.name]
+			r2 = n2 and minetest.registered_nodes[n2.name]
+			if not (r1 and r1.buildable_to or r2 and r2.buildable_to) then
+				if minetest.registered_nodes[node_here.name].buildable_to then
+					minetest.swap_node(right_here, {name="trunks:twig_5", param2=2})
+				end
+				if minetest.registered_nodes[node_s_w.name].buildable_to then
+					minetest.swap_node(south_west, {name="trunks:twig_7", param2=2})
+				end
+				if minetest.registered_nodes[node_west.name].buildable_to then
+					minetest.swap_node(west,		  {name="trunks:twig_8", param2=2})
+				end
 			end
+		elseif twig_size == 20 then
+			n1 = minetest.get_node({x=pos.x-1,y=pos.y,z=pos.z+1})
+			n2 = minetest.get_node({x=pos.x,y=pos.y,z=pos.z+1})
+			r1 = n1 and minetest.registered_nodes[n1.name]
+			r2 = n2 and minetest.registered_nodes[n2.name]
+			if not (r1 and r1.buildable_to or r2 and r2.buildable_to) then
+				if minetest.registered_nodes[node_here.name].buildable_to then
+					minetest.swap_node(right_here, {name="trunks:twig_5", param2=3})
+				end
+				if minetest.registered_nodes[node_n_w.name].buildable_to then
+					minetest.swap_node(north_west, {name="trunks:twig_7", param2=3})
+				end
+				if minetest.registered_nodes[node_north.name].buildable_to then
+					minetest.swap_node(north,	  {name="trunks:twig_8", param2=3})
+				end
+			end
+			--	big twig 2
+		elseif twig_size == 21 then
+			n1 = minetest.get_node({x=pos.x,y=pos.y,z=pos.z+1})
+			n2 = minetest.get_node({x=pos.x+1,y=pos.y,z=pos.z+1})
+			r1 = n1 and minetest.registered_nodes[n1.name]
+			r2 = n2 and minetest.registered_nodes[n2.name]
+			if not (r1 and r1.buildable_to or r2 and r2.buildable_to) then
+				if minetest.registered_nodes[node_here.name].buildable_to then
+					minetest.swap_node(right_here, {name="trunks:twig_9"})
+				end
+				if minetest.registered_nodes[node_north.name].buildable_to then
+					minetest.swap_node(north,	  {name="trunks:twig_10"})
+				end
+				if minetest.registered_nodes[node_n_e.name].buildable_to then
+					minetest.swap_node(north_east, {name="trunks:twig_11"})
+				end
+			end
+		elseif twig_size == 22 then
+			n1 = minetest.get_node({x=pos.x+1,y=pos.y,z=pos.z})
+			n2 = minetest.get_node({x=pos.x+1,y=pos.y,z=pos.z-1})
+			r1 = n1 and minetest.registered_nodes[n1.name]
+			r2 = n2 and minetest.registered_nodes[n2.name]
+			if not (r1 and r1.buildable_to or r2 and r2.buildable_to) then
+				if minetest.registered_nodes[node_here.name].buildable_to then
+					minetest.swap_node(right_here, {name="trunks:twig_9", param2=1})
+				end
+				if minetest.registered_nodes[node_east.name].buildable_to then
+					minetest.swap_node(east,		  {name="trunks:twig_10", param2=1})
+				end
+				if minetest.registered_nodes[node_s_e.name].buildable_to then
+					minetest.swap_node(south_east, {name="trunks:twig_11", param2=1})
+				end
+			end
+		elseif twig_size == 23 then
+			n1 = minetest.get_node({x=pos.x,y=pos.y,z=pos.z-1})
+			n2 = minetest.get_node({x=pos.x-1,y=pos.y,z=pos.z-1})
+			r1 = n1 and minetest.registered_nodes[n1.name]
+			r2 = n2 and minetest.registered_nodes[n2.name]
+			if not (r1 and r1.buildable_to or r2 and r2.buildable_to) then
+				if minetest.registered_nodes[node_here.name].buildable_to then
+					minetest.swap_node(right_here, {name="trunks:twig_9", param2=2})
+				end
+				if minetest.registered_nodes[node_south.name].buildable_to then
+					minetest.swap_node(south,	  {name="trunks:twig_10", param2=2})
+				end
+				if minetest.registered_nodes[node_s_w.name].buildable_to then
+					minetest.swap_node(south_west, {name="trunks:twig_11", param2=2})
+				end
+			end
+		elseif twig_size == 24 then
+			n1 = minetest.get_node({x=pos.x-1,y=pos.y,z=pos.z})
+			n2 = minetest.get_node({x=pos.x-1,y=pos.y,z=pos.z+1})
+			r1 = n1 and minetest.registered_nodes[n1.name]
+			r2 = n2 and minetest.registered_nodes[n2.name]
+			if not (r1 and r1.buildable_to or r2 and r2.buildable_to) then
+				if minetest.registered_nodes[node_here.name].buildable_to then
+					minetest.swap_node(right_here, {name="trunks:twig_9", param2=3})
+				end
+				if minetest.registered_nodes[node_west.name].buildable_to then
+					minetest.swap_node(west,		  {name="trunks:twig_10", param2=3})
+				end
+				if minetest.registered_nodes[node_n_w.name].buildable_to then
+					minetest.swap_node(north_west, {name="trunks:twig_11", param2=3})
+				end
+			end
+		elseif twig_size <= 25 then
+			minetest.swap_node(right_here, {name="trunks:twig_"..math.random(12,13), param2=math.random(0,3)})
 		end
-	elseif twig_size == 18 then
-		if not (minetest.registered_nodes[minetest.get_node({x=pos.x+1,y=pos.y,z=pos.z-1}).name].buildable_to
-			or minetest.registered_nodes[minetest.get_node({x=pos.x,y=pos.y,z=pos.z-1}).name].buildable_to) then
-
-			if minetest.registered_nodes[node_here.name].buildable_to then
-				minetest.swap_node(right_here, {name="trunks:twig_5", param2=1})
-			end
-			if minetest.registered_nodes[node_s_e.name].buildable_to then
-				minetest.swap_node(south_east, {name="trunks:twig_7", param2=1})
-			end
-			if minetest.registered_nodes[node_south.name].buildable_to then
-				minetest.swap_node(south,	  {name="trunks:twig_8", param2=1})
-			end
-		end
-	elseif twig_size == 19 then
-		if not (minetest.registered_nodes[minetest.get_node({x=pos.x+1,y=pos.y,z=pos.z-1}).name].buildable_to
-			or minetest.registered_nodes[minetest.get_node({x=pos.x-1,y=pos.y,z=pos.z}).name].buildable_to) then
-
-			if minetest.registered_nodes[node_here.name].buildable_to then
-				minetest.swap_node(right_here, {name="trunks:twig_5", param2=2})
-			end
-			if minetest.registered_nodes[node_s_w.name].buildable_to then
-				minetest.swap_node(south_west, {name="trunks:twig_7", param2=2})
-			end
-			if minetest.registered_nodes[node_west.name].buildable_to then
-				minetest.swap_node(west,		  {name="trunks:twig_8", param2=2})
-			end
-		end
-	elseif twig_size == 20 then
-		if not (minetest.registered_nodes[minetest.get_node({x=pos.x-1,y=pos.y,z=pos.z+1}).name].buildable_to
-			or minetest.registered_nodes[minetest.get_node({x=pos.x,y=pos.y,z=pos.z+1}).name].buildable_to) then
-
-			if minetest.registered_nodes[node_here.name].buildable_to then
-				minetest.swap_node(right_here, {name="trunks:twig_5", param2=3})
-			end
-			if minetest.registered_nodes[node_n_w.name].buildable_to then
-				minetest.swap_node(north_west, {name="trunks:twig_7", param2=3})
-			end
-			if minetest.registered_nodes[node_north.name].buildable_to then
-				minetest.swap_node(north,	  {name="trunks:twig_8", param2=3})
-			end
-		end
---	big twig 2
-	elseif twig_size == 21 then
-		if not (minetest.registered_nodes[minetest.get_node({x=pos.x,y=pos.y,z=pos.z+1}).name].buildable_to
-			or minetest.registered_nodes[minetest.get_node({x=pos.x+1,y=pos.y,z=pos.z+1}).name].buildable_to) then
-
-			if minetest.registered_nodes[node_here.name].buildable_to then
-				minetest.swap_node(right_here, {name="trunks:twig_9"})
-			end
-			if minetest.registered_nodes[node_north.name].buildable_to then
-				minetest.swap_node(north,	  {name="trunks:twig_10"})
-			end
-			if minetest.registered_nodes[node_n_e.name].buildable_to then
-				minetest.swap_node(north_east, {name="trunks:twig_11"})
-			end
-		end
-	elseif twig_size == 22 then
-		if not (minetest.registered_nodes[minetest.get_node({x=pos.x+1,y=pos.y,z=pos.z}).name].buildable_to
-			or minetest.registered_nodes[minetest.get_node({x=pos.x+1,y=pos.y,z=pos.z-1}).name].buildable_to) then
-
-			if minetest.registered_nodes[node_here.name].buildable_to then
-				minetest.swap_node(right_here, {name="trunks:twig_9", param2=1})
-			end
-			if minetest.registered_nodes[node_east.name].buildable_to then
-				minetest.swap_node(east,		  {name="trunks:twig_10", param2=1})
-			end
-			if minetest.registered_nodes[node_s_e.name].buildable_to then
-				minetest.swap_node(south_east, {name="trunks:twig_11", param2=1})
-			end
-		end
-	elseif twig_size == 23 then
-		if not (minetest.registered_nodes[minetest.get_node({x=pos.x,y=pos.y,z=pos.z-1}).name].buildable_to
-			or minetest.registered_nodes[minetest.get_node({x=pos.x-1,y=pos.y,z=pos.z-1}).name].buildable_to) then
-
-			if minetest.registered_nodes[node_here.name].buildable_to then
-				minetest.swap_node(right_here, {name="trunks:twig_9", param2=2})
-			end
-			if minetest.registered_nodes[node_south.name].buildable_to then
-				minetest.swap_node(south,	  {name="trunks:twig_10", param2=2})
-			end
-			if minetest.registered_nodes[node_s_w.name].buildable_to then
-				minetest.swap_node(south_west, {name="trunks:twig_11", param2=2})
-			end
-		end
-	elseif twig_size == 24 then
-		if not (minetest.registered_nodes[minetest.get_node({x=pos.x-1,y=pos.y,z=pos.z}).name].buildable_to
-			or minetest.registered_nodes[minetest.get_node({x=pos.x-1,y=pos.y,z=pos.z+1}).name].buildable_to) then
-
-			if minetest.registered_nodes[node_here.name].buildable_to then
-				minetest.swap_node(right_here, {name="trunks:twig_9", param2=3})
-			end
-			if minetest.registered_nodes[node_west.name].buildable_to then
-				minetest.swap_node(west,		  {name="trunks:twig_10", param2=3})
-			end
-			if minetest.registered_nodes[node_n_w.name].buildable_to then
-				minetest.swap_node(north_west, {name="trunks:twig_11", param2=3})
-			end
-		end
-	elseif twig_size <= 25 then
-		minetest.swap_node(right_here, {name="trunks:twig_"..math.random(12,13), param2=math.random(0,3)})
-	end
 	end
 end
 
 if Twigs_on_ground == true then
-biome_lib:register_generate_plant({
+biome_lib.register_on_generate({
     surface = {"default:dirt_with_grass"},
     max_count = Twigs_on_ground_Max_Count,
     rarity = Twigs_on_ground_Rarity,
@@ -186,7 +204,7 @@ biome_lib:register_generate_plant({
 end
 
 if Twigs_on_water == true then
-biome_lib:register_generate_plant({
+biome_lib.register_on_generate({
     surface = {"default:water_source"},
     max_count = Twigs_on_water_Max_Count,
     rarity = Twigs_on_water_Rarity,
@@ -348,7 +366,7 @@ abstract_trunks.place_trunk = function(pos)
 	end
 end
 
-biome_lib:register_generate_plant({
+biome_lib.register_on_generate({
     surface = {"default:dirt_with_grass"},
     max_count = Trunks_Max_Count, -- 320,
     rarity = Trunks_Rarity, -- 99,
@@ -382,7 +400,7 @@ abstract_trunks.grow_moss_on_ground = function(pos)
 
 end
 
-biome_lib:register_generate_plant({
+biome_lib.register_on_generate({
     surface = {"default:dirt_with_grass"},
     max_count = Moss_on_ground_Max_Count,
     rarity = Moss_on_ground_Rarity,
@@ -471,7 +489,7 @@ abstract_trunks.grow_moss_on_trunk = function(pos)
 	--end
 end
 
-biome_lib:register_generate_plant({
+biome_lib.register_on_generate({
     surface = {
 		"default:tree",
 		"default:jungletree",
@@ -548,7 +566,7 @@ abstract_trunks.grow_roots = function(pos)
 	end
 end
 
-biome_lib:register_generate_plant({
+biome_lib.register_on_generate({
     surface = {"group:tree"},
     max_count = 1000,
     rarity = 1,

trunks/nodes.lua

@@ -58,6 +58,7 @@ for i in pairs(NoDe) do
 				if not minetest.setting_getbool("creative_mode") then
 					itemstack:take_item()
 				end
+				return itemstack
 			end
 		end,
 	})
@@ -95,6 +96,7 @@ for r = 0, 3 do
 		sunlight_propagates = true,
 		walkable = false,
 		node_box = cbox,
+		buildable_to = true,
 		groups = {snappy = 3, flammable = 3, attached_node=1, not_in_creative_inventory = r},
 		sounds = default.node_sound_leaves_defaults(),
 		drop = "trunks:moss_plain_0",
@@ -114,6 +116,7 @@ for r = 0, 3 do
 		sunlight_propagates = true,
 		walkable = false,
 		node_box = cbox,
+		buildable_to = true,
 		groups = {snappy = 3, flammable = 3, attached_node=1, not_in_creative_inventory = r},
 		sounds = default.node_sound_leaves_defaults(),
 		drop = "trunks:moss_with_fungus_0",

vines/init.lua

@@ -135,7 +135,7 @@ vines.register_vine = function( name, defs, biome )
 		end,
 	})
 
-	biome_lib:spawn_on_surfaces(biome)
+	biome_lib.register_active_spawner(biome)
 end
 
 -- ALIASES

woodsoils/generating.lua

@@ -73,7 +73,7 @@ abstract_woodsoils.place_soil = function(pos)
 	end
 end
 
-biome_lib:register_generate_plant({
+biome_lib.register_on_generate({
     surface = {
 		"group:tree",
 		"ferns:fern_03",
@@ -94,7 +94,7 @@ biome_lib:register_generate_plant({
   "abstract_woodsoils.place_soil"
 )
 
-biome_lib:register_generate_plant({
+biome_lib.register_on_generate({
     surface = {
 		"moretrees:apple_tree_sapling_ongen",
 		"moretrees:beech_sapling_ongen",

youngtrees/init.lua

@@ -134,7 +134,7 @@ abstract_youngtrees.grow_youngtree_node = function(pos, height)
 end
 
 
-biome_lib:register_generate_plant({
+biome_lib.register_on_generate({
     surface = {
 		"default:dirt_with_grass",
 		"stoneage:grass_with_silex",