make lush caves use new structures api

mods/ITEMS/mcl_lush_caves/init.lua

@@ -51,10 +51,10 @@ local function dripleaf_grow(pos, node)
 	minetest.set_node(target,{name = "mcl_lush_caves:dripleaf_big"})
 end
 
-function mcl_lush_caves.makelake(pos,pr)
+function mcl_lush_caves.makelake(pos,def,pr)
 	local p1 = vector.offset(pos,-5,-2,-5)
 	local p2 = vector.offset(pos,5,1,5)
-	local nn = minetest.find_nodes_in_area_under_air(p1,p2,{"group:material_stone","mcl_core:clay"})
+	local nn = minetest.find_nodes_in_area_under_air(p1,p2,{"group:material_stone","mcl_core:clay","mcl_lush_caves:moss"})
 	table.sort(nn,function(a, b)
 		   return vector_distance_xz(pos, a) < vector_distance_xz(pos, b)
 	end)
@@ -88,9 +88,10 @@ function mcl_lush_caves.makelake(pos,pr)
 			end
 		end
 	end
+	return true
 end
 
-function mcl_lush_caves.makeazaela(pos,pr)
+function mcl_lush_caves.makeazaela(pos,def,pr)
 	local airup = minetest.find_nodes_in_area_under_air(vector.offset(pos,0,40,0),pos,{"mcl_core:dirt_with_grass"})
 	if #airup == 0 then
 		return end
@@ -630,42 +631,47 @@ minetest.register_globalstep(function(dtime)
 	end
 end)
 
+local lushcaves = { "LushCaves", "LushCaves_underground", "LushCaves_ocean", "LushCaves_deep_ocean"}
+
+mcl_structures.register_structure("clay_pool",{
+	place_on = {"group:material_stone","mcl_core:gravel","mcl_lush_caves:moss","mcl_core:clay"},
+	spawn_by = {"air"},
+	num_spawn_by = 1,
+	noise_params = {
+		offset = 0,
+		scale = 0.01,
+		spread = {x = 250, y = 250, z = 250},
+		seed = 78375213,
+		octaves = 5,
+		persist = 0.1,
+		flags = "absvalue",
+	},
+	flags = "all_floors",
+	y_max = -10,
+	biomes = lushcaves,
+	place_func = mcl_lush_caves.makelake,
+})
+
 local azaleas = {}
 local az_limit = 500
-
-local deco_id_makelake = minetest.get_decoration_id("mcl_biomes:lake_structblock")
-local deco_id_makeazalea = minetest.get_decoration_id("mcl_biomes:azalea_structblock")
-minetest.set_gen_notify({decoration=true}, { deco_id_makelake })
-minetest.set_gen_notify({decoration=true}, { deco_id_makeazalea })
-
-mcl_mapgen_core.register_generator("mcl_lush_caves", nil, function(minp, maxp, blockseed)
-	local gennotify = minetest.get_mapgen_object("gennotify")
-	local pr = PseudoRandom(blockseed + 15)
-
-	local az = false
-	for _, pos in pairs(gennotify["decoration#"..deco_id_makeazalea] or {}) do
-		local realpos = vector.offset(pos,0,-1,0)
-		local node = minetest.get_node(realpos)
-		if node and node.name == "mcl_lush_caves:azalea_structblock" then
-			minetest.remove_node(realpos)
+mcl_structures.register_structure("azalea_tree",{
+	place_on = {"group:material_stone","mcl_core:gravel","mcl_lush_caves:moss","mcl_core:clay"},
+	spawn_by = {"air"},
+	num_spawn_by = 1,
+	fill_ratio = 0.15,
+	flags = "all_ceilings",
+	y_max =-10,
+	y_min = mcl_vars.mg_overworld_min + 15,
+	biomes = lushcaves,
+	place_func = function(pos,def,pr)
 		for _,a in pairs(azaleas) do
-				if vector.distance(realpos,a) < az_limit then
-					az = true
+			if vector.distance(pos,a) < az_limit then
+				return true
 			end
-			end
-			if not az and mcl_lush_caves.makeazaela(realpos) then
-				table.insert(azaleas,realpos)
-				az = true
+			if mcl_lush_caves.makeazalea(pos,def,pr) then
+				table.insert(azaleas,pos)
+				return true
 			end
 		end
 	end
-
-	for _, pos in pairs(gennotify["decoration#"..deco_id_makelake] or {}) do
-		local realpos = vector.offset(pos,0,1,0)
-		local node = minetest.get_node(realpos)
-		if node and node.name == "mcl_lush_caves:lake_structblock" then
-			minetest.remove_node(realpos)
-			mcl_lush_caves.makelake(realpos, pr)
-		end
-	end
-end)
+})

mods/ITEMS/mcl_lush_caves/mod.conf

@@ -1,3 +1,3 @@
 name = mcl_lush_caves
 author = cora
-depends = mcl_sounds, mesecons, mcl_mapgen_core
+depends = mcl_sounds, mesecons, mcl_mapgen_core, mcl_structures

mods/MAPGEN/mcl_biomes/init.lua

@@ -4401,34 +4401,6 @@ local function register_decorations()
 		fill_ratio = 0.1,
 	})
 
-	minetest.register_decoration({
-		name = "mcl_biomes:lake_structblock",
-		decoration = "mcl_lush_caves:lake_structblock",
-		deco_type = "simple",
-		place_on = {"group:material_stone","mcl_core:gravel","mcl_lush_caves:moss","mcl_core:clay"},
-		spawn_by = {"air"},
-		num_spawn_by = 2,
-		sidelen = 16,
-		fill_ratio = 1,
-		y_max = -10,
-		flags = "all_floors",
-		biomes = lushcaves,
-	})
-
-	minetest.register_decoration({
-		name = "mcl_biomes:azalea_structblock",
-		decoration = "mcl_lush_caves:azalea_structblock",
-		deco_type = "simple",
-		place_on = {"group:material_stone","mcl_core:gravel","mcl_lush_caves:moss","mcl_core:clay"},
-		spawn_by = {"air"},
-		num_spawn_by = 4,
-		y_min = -25,
-		y_max = -5,
-		sidelen = 16,
-		fill_ratio = 0.2,
-		flags = "all_ceilings",
-		biomes = lushcaves,
-	})
 
 	minetest.register_decoration({
 		decoration = "mcl_lush_caves:cave_vines",