mods/MAPGEN/mcl_geodes/init.lua

@@ -76,6 +76,7 @@ mcl_structures.register_structure("geode",{
 		flags = "absvalue",
 	},
 	flags = "place_center_x, place_center_z, force_placement",
+	terrain_feature = true,
 	y_max = -24,
 	y_min = mcl_vars.mg_overworld_min,
 	y_offset = function(pr) return pr:next(-4,-2) end,

mods/MAPGEN/mcl_mapgen_core/init.lua

@@ -1334,7 +1334,7 @@ local function generate_structures(minp, maxp, blockseed, biomemap)
 						-- Witch hut (v6)
 						if ground_y <= 0 and nn == "mcl_core:dirt" then
 						local prob = minecraft_chunk_probability(48, minp, maxp)
-						if pr:next(1, prob) == 1 then
+						if mg_name == "v6" and pr:next(1, prob) == 1 then
 
 							local swampland = minetest.get_biome_id("Swampland")
 							local swampland_shore = minetest.get_biome_id("Swampland_shore")
@@ -1345,7 +1345,7 @@ local function generate_structures(minp, maxp, blockseed, biomemap)
 								here_be_witches = true
 							end
 							local here_be_witches = false
-							if mg_name == "v6" and  here_be_witches then
+							if here_be_witches then
 
 								local r = tostring(pr:next(0, 3) * 90) -- "0", "90", "180" or 270"
 								local p1 = {x=p.x-1, y=WITCH_HUT_HEIGHT+2, z=p.z-1}

mods/MAPGEN/mcl_structures/api.lua

@@ -46,13 +46,18 @@ function mcl_structures.place_structure(pos, def, pr)
 		local bn = minetest.get_biome_name(minetest.get_biome_data(pos).biome)
 		local node_top = minetest.registered_biomes[bn].node_top
 		local node_fill = minetest.registered_biomes[bn].node_filler
+		local node_stone = minetest.registered_biomes[bn].node_stone
 		local ground_p1 = vector.offset(pos,-def.sidelen/2,-1,-def.sidelen/2)
 		local ground_p2 = vector.offset(pos,def.sidelen/2,-1,def.sidelen/2)
+		if not node_stone then node_stone = "mcl_core:stone" end
+		if not node_fill then node_fill = "mcl_core:dirt" end
+		if not node_top then node_top = "mcl_core:dirt_with_grass" end
 		local solid = minetest.find_nodes_in_area(ground_p1,ground_p2,{"group:solid"})
 		if #solid < ( def.sidelen * def.sidelen ) then
 			if def.make_foundation then
 				minetest.bulk_set_node(minetest.find_nodes_in_area(ground_p1,ground_p2,{"air","group:liquid"}),{name=node_top})
-				minetest.bulk_set_node(minetest.find_nodes_in_area(vector.offset(ground_p1,0,-1,0),vector.offset(ground_p2,0,-30,0),{"air","group:liquid"}),{name=node_fill})
+				minetest.bulk_set_node(minetest.find_nodes_in_area(vector.offset(ground_p1,0,-1,0),vector.offset(ground_p2,0,-4,0),{"air","group:liquid"}),{name=node_fill})
+				minetest.bulk_set_node(minetest.find_nodes_in_area(vector.offset(ground_p1,0,-5,0),vector.offset(ground_p2,0,-30,0),{"air","group:liquid"}),{name=node_stone})
 			else
 				if logging then
 					minetest.log("warning","[mcl_structures] "..def.name.." at "..minetest.pos_to_string(pos).." not placed. No solid ground.")
@@ -124,7 +129,7 @@ function mcl_structures.register_structure(name,def,nospawn) --nospawn means it
 				y_max = def.y_max,
 				y_min = def.y_min
 			})
-			minetest.register_node(":"..structblock, {drawtype="airlike", walkable = false, pointable = false,groups = sbgroups})
+			minetest.register_node(":"..structblock, {drawtype="normal", walkable = false, pointable = false,groups = sbgroups})
 			def.structblock = structblock
 			def.deco_id = minetest.get_decoration_id("mcl_structures:deco_"..name)
 			minetest.set_gen_notify({decoration=true}, { def.deco_id })

mods/MAPGEN/mcl_structures/desert_temple.lua

@@ -34,21 +34,13 @@ end
 
 mcl_structures.register_structure("desert_temple",{
 	place_on = {"group:sand"},
-	noise_params = {
-		offset = 0,
-		scale = 0.0000822,
-		spread = {x = 250, y = 250, z = 250},
-		seed = 34115,
-		octaves = 3,
-		persist = -0.4,
-		flags = "absvalue",
-	},
+	fill_ratio = 0.01,
 	flags = "place_center_x, place_center_z",
 	solid_ground = true,
 	make_foundation = true,
 	sidelen = 18,
 	y_offset = -12,
-	chunk_probability = 256,
+	chunk_probability = 500,
 	y_max = mcl_vars.mg_overworld_max,
 	y_min = 1,
 	biomes = { "Desert" },

mods/MAPGEN/mcl_structures/init.lua

@@ -449,21 +449,12 @@ end
 
 mcl_structures.register_structure("witch_hut",{
 	place_on = {"group:sand","group:grass_block","mcl_core:water_source","group:dirt"},
-	noise_params = {
-		offset = 0,
-		scale = 0.0012,
-		spread = {x = 250, y = 250, z = 250},
-		seed = 233,
-		octaves = 3,
-		persist = 0.001,
-		flags = "absvalue",
-	},
+	fill_ratio = 0.01,
 	flags = "place_center_x, place_center_z, liquid_surface, force_placement",
 	sidelen = 5,
-	chunk_probability = 64,
+	chunk_probability = 128,
 	y_max = mcl_vars.mg_overworld_max,
-	y_min = 1,
-	--y_offset = function(pr) return pr:next(-4,1) end,
+	y_min = -4,
 	y_offset = 0,
 	biomes = { "Swampland", "Swampland_ocean", "Swampland_shore" },
 	filenames = { modpath.."/schematics/mcl_structures_witch_hut.mts" },
@@ -471,20 +462,12 @@ mcl_structures.register_structure("witch_hut",{
 })
 mcl_structures.register_structure("desert_well",{
 	place_on = {"group:sand"},
-	noise_params = {
-		offset = 0,
-		scale = 0.00012,
-		spread = {x = 250, y = 250, z = 250},
-		seed = 233,
-		octaves = 3,
-		persist = 0.001,
-		flags = "absvalue",
-	},
+	fill_ratio = 0.01,
 	flags = "place_center_x, place_center_z",
 	not_near = { "desert_temple_new" },
 	solid_ground = true,
 	sidelen = 4,
-	chunk_probability = 64,
+	chunk_probability = 256,
 	y_max = mcl_vars.mg_overworld_max,
 	y_min = 1,
 	y_offset = -2,
@@ -493,17 +476,15 @@ mcl_structures.register_structure("desert_well",{
 })
 
 mcl_structures.register_structure("boulder",{
-	flags = "place_center_x, place_center_z",
-	sidelen = 4,
 	filenames = {
 		modpath.."/schematics/mcl_structures_boulder_small.mts",
 		modpath.."/schematics/mcl_structures_boulder_small.mts",
 		modpath.."/schematics/mcl_structures_boulder_small.mts",
 		modpath.."/schematics/mcl_structures_boulder.mts",
+		-- small boulder 3x as likely
 	},
 },true) --is spawned as a normal decoration. this is just for /spawnstruct
 mcl_structures.register_structure("ice_spike_small",{
-	sidelen = 3,
 	filenames = {
 		modpath.."/schematics/mcl_structures_ice_spike_small.mts"
 	},

mods/MAPGEN/mcl_structures/jungle_temple.lua

@@ -4,20 +4,12 @@ local modpath = minetest.get_modpath(modname)
 
 mcl_structures.register_structure("jungle_temple",{
 	place_on = {"group:grass_block","group:dirt","mcl_core:dirt_with_grass"},
-	noise_params = {
-		offset = 0,
-		scale = 0.0000812,
-		spread = {x = 250, y = 250, z = 250},
-		seed = 31585,
-		octaves = 3,
-		persist = -0.2,
-		flags = "absvalue",
-	},
+	fill_ratio = 0.1,
 	flags = "place_center_x, place_center_z",
 	solid_ground = true,
 	make_foundation = true,
-	y_offset = -5,
-	chunk_probability = 256,
+	y_offset = function(pr) return pr:next(-3,0) -5 end,
+	chunk_probability = 1500,
 	y_max = mcl_vars.mg_overworld_max,
 	y_min = 1,
 	biomes = { "Jungle" },

mods/MAPGEN/mcl_structures/ocean_ruins.lua

@@ -74,15 +74,7 @@ local cold = {
 	place_on = {"group:sand","mcl_core:gravel","mcl_core:dirt","mcl_core:clay","group:material_stone"},
 	spawn_by = {"mcl_core:water_source"},
 	num_spawn_by = 2,
-	noise_params = {
-		offset = 0,
-		scale = 0.0000812,
-		spread = {x = 250, y = 250, z = 250},
-		seed = 146315,
-		octaves = 3,
-		persist = -0.2,
-		flags = "absvalue",
-	},
+	fill_ratio = 0.001,
 	flags = "place_center_x, place_center_z, force_placement",
 	solid_ground = true,
 	make_foundation = true,
@@ -90,8 +82,8 @@ local cold = {
 	y_min = mcl_vars.mg_overworld_min,
 	y_max = -2,
 	biomes = cold_oceans,
-	chunk_probability = 64,
-	sidelen = 8,
+	chunk_probability = 128,
+	sidelen = 20,
 	filenames = {
 		modpath.."/schematics/mcl_structures_ocean_ruins_cold_1.mts",
 		modpath.."/schematics/mcl_structures_ocean_ruins_cold_2.mts",