-- -- Aliases for map generator outputs -- minetest.register_alias("mapgen_air", "air") minetest.register_alias("mapgen_stone", "mcl_core:stone") minetest.register_alias("mapgen_tree", "mcl_core:tree") minetest.register_alias("mapgen_leaves", "mcl_core:leaves") minetest.register_alias("mapgen_jungletree", "mcl_core:jungletree") minetest.register_alias("mapgen_jungleleaves", "mcl_core:jungleleaves") minetest.register_alias("mapgen_pine_tree", "mcl_core:sprucetree") minetest.register_alias("mapgen_pine_needles", "mcl_core:spruceleaves") minetest.register_alias("mapgen_apple", "mcl_core:leaves") minetest.register_alias("mapgen_water_source", "mcl_core:water_source") minetest.register_alias("mapgen_dirt", "mcl_core:dirt") minetest.register_alias("mapgen_dirt_with_grass", "mcl_core:dirt_with_grass") minetest.register_alias("mapgen_dirt_with_snow", "mcl_core:dirt_with_grass_snow") minetest.register_alias("mapgen_sand", "mcl_core:sand") minetest.register_alias("mapgen_gravel", "mcl_core:gravel") minetest.register_alias("mapgen_clay", "mcl_core:clay") minetest.register_alias("mapgen_lava_source", "air") -- Built-in lava generator is too unpredictable, we generate lava on our own minetest.register_alias("mapgen_cobble", "mcl_core:cobble") minetest.register_alias("mapgen_mossycobble", "mcl_core:mossycobble") minetest.register_alias("mapgen_junglegrass", "mcl_flowers:fern") minetest.register_alias("mapgen_stone_with_coal", "mcl_core:stone_with_coal") minetest.register_alias("mapgen_stone_with_iron", "mcl_core:stone_with_iron") minetest.register_alias("mapgen_desert_sand", "mcl_core:sand") minetest.register_alias("mapgen_desert_stone", "mcl_core:sandstone") minetest.register_alias("mapgen_sandstone", "mcl_core:sandstone") minetest.register_alias("mapgen_river_water_source", "mcl_core:water_source") minetest.register_alias("mapgen_snow", "mcl_core:snow") minetest.register_alias("mapgen_snowblock", "mcl_core:snowblock") minetest.register_alias("mapgen_ice", "mcl_core:ice") minetest.register_alias("mapgen_stair_cobble", "mcl_stairs:stair_cobble") minetest.register_alias("mapgen_sandstonebrick", "mcl_core:sandstonesmooth") minetest.register_alias("mapgen_stair_sandstonebrick", "mcl_stairs:stair_sandstone") minetest.register_alias("mapgen_stair_sandstone_block", "mcl_stairs:stair_sandstone") minetest.register_alias("mapgen_stair_desert_stone", "mcl_stairs:stair_sandstone") local mg_name = minetest.get_mapgen_setting("mg_name") local WITCH_HUT_HEIGHT = 3 -- Exact Y level to spawn witch huts at. This height refers to the height of the floor -- -- Ore generation -- -- Diorite, andesite and granite local specialstones = { "mcl_core:diorite", "mcl_core:andesite", "mcl_core:granite" } for s=1, #specialstones do local node = specialstones[s] minetest.register_ore({ ore_type = "blob", ore = node, wherein = {"mcl_core:stone"}, clust_scarcity = 15*15*15, clust_num_ores = 33, clust_size = 5, y_min = mcl_vars.mg_overworld_min, y_max = mcl_vars.mg_overworld_max, }) minetest.register_ore({ ore_type = "blob", ore = node, wherein = {"mcl_core:stone"}, clust_scarcity = 10*10*10, clust_num_ores = 58, clust_size = 7, y_min = mcl_vars.mg_overworld_min, y_max = mcl_vars.mg_overworld_max, }) end local stonelike = {"mcl_core:stone", "mcl_core:diorite", "mcl_core:andesite", "mcl_core:granite"} -- Dirt minetest.register_ore({ ore_type = "blob", ore = "mcl_core:dirt", wherein = stonelike, clust_scarcity = 15*15*15, clust_num_ores = 33, clust_size = 4, y_min = mcl_vars.mg_overworld_min, y_max = mcl_vars.mg_overworld_max, }) -- Gravel minetest.register_ore({ ore_type = "blob", ore = "mcl_core:gravel", wherein = stonelike, clust_scarcity = 14*14*14, clust_num_ores = 33, clust_size = 5, y_min = mcl_vars.mg_overworld_min, y_max = mcl_util.layer_to_y(111), }) -- -- Coal -- -- Common spawn minetest.register_ore({ ore_type = "scatter", ore = "mcl_core:stone_with_coal", wherein = stonelike, clust_scarcity = 525*3, clust_num_ores = 5, clust_size = 3, y_min = mcl_vars.mg_overworld_min, y_max = mcl_util.layer_to_y(50), }) minetest.register_ore({ ore_type = "scatter", ore = "mcl_core:stone_with_coal", wherein = stonelike, clust_scarcity = 510*3, clust_num_ores = 8, clust_size = 3, y_min = mcl_vars.mg_overworld_min, y_max = mcl_util.layer_to_y(50), }) minetest.register_ore({ ore_type = "scatter", ore = "mcl_core:stone_with_coal", wherein = stonelike, clust_scarcity = 500*3, clust_num_ores = 12, clust_size = 3, y_min = mcl_vars.mg_overworld_min, y_max = mcl_util.layer_to_y(50), }) -- Medium-rare spawn minetest.register_ore({ ore_type = "scatter", ore = "mcl_core:stone_with_coal", wherein = stonelike, clust_scarcity = 550*3, clust_num_ores = 4, clust_size = 2, y_min = mcl_util.layer_to_y(51), y_max = mcl_util.layer_to_y(80), }) minetest.register_ore({ ore_type = "scatter", ore = "mcl_core:stone_with_coal", wherein = stonelike, clust_scarcity = 525*3, clust_num_ores = 6, clust_size = 3, y_min = mcl_util.layer_to_y(51), y_max = mcl_util.layer_to_y(80), }) minetest.register_ore({ ore_type = "scatter", ore = "mcl_core:stone_with_coal", wherein = stonelike, clust_scarcity = 500*3, clust_num_ores = 8, clust_size = 3, y_min = mcl_util.layer_to_y(51), y_max = mcl_util.layer_to_y(80), }) -- Rare spawn minetest.register_ore({ ore_type = "scatter", ore = "mcl_core:stone_with_coal", wherein = stonelike, clust_scarcity = 600*3, clust_num_ores = 3, clust_size = 2, y_min = mcl_util.layer_to_y(81), y_max = mcl_util.layer_to_y(128), }) minetest.register_ore({ ore_type = "scatter", ore = "mcl_core:stone_with_coal", wherein = stonelike, clust_scarcity = 550*3, clust_num_ores = 4, clust_size = 3, y_min = mcl_util.layer_to_y(81), y_max = mcl_util.layer_to_y(128), }) minetest.register_ore({ ore_type = "scatter", ore = "mcl_core:stone_with_coal", wherein = stonelike, clust_scarcity = 500*3, clust_num_ores = 5, clust_size = 3, y_min = mcl_util.layer_to_y(81), y_max = mcl_util.layer_to_y(128), }) -- -- Iron -- minetest.register_ore({ ore_type = "scatter", ore = "mcl_core:stone_with_iron", wherein = stonelike, clust_scarcity = 830, clust_num_ores = 5, clust_size = 3, y_min = mcl_vars.mg_overworld_min, y_max = mcl_util.layer_to_y(39), }) minetest.register_ore({ ore_type = "scatter", ore = "mcl_core:stone_with_iron", wherein = stonelike, clust_scarcity = 1660, clust_num_ores = 4, clust_size = 2, y_min = mcl_util.layer_to_y(40), y_max = mcl_util.layer_to_y(63), }) -- -- Gold -- -- Common spawn minetest.register_ore({ ore_type = "scatter", ore = "mcl_core:stone_with_gold", wherein = stonelike, clust_scarcity = 4775, clust_num_ores = 5, clust_size = 3, y_min = mcl_vars.mg_overworld_min, y_max = mcl_util.layer_to_y(30), }) minetest.register_ore({ ore_type = "scatter", ore = "mcl_core:stone_with_gold", wherein = stonelike, clust_scarcity = 6560, clust_num_ores = 7, clust_size = 3, y_min = mcl_vars.mg_overworld_min, y_max = mcl_util.layer_to_y(30), }) -- Rare spawn minetest.register_ore({ ore_type = "scatter", ore = "mcl_core:stone_with_gold", wherein = stonelike, clust_scarcity = 13000, clust_num_ores = 4, clust_size = 2, y_min = mcl_util.layer_to_y(31), y_max = mcl_util.layer_to_y(33), }) -- -- Diamond -- -- Common spawn minetest.register_ore({ ore_type = "scatter", ore = "mcl_core:stone_with_diamond", wherein = stonelike, clust_scarcity = 10000, clust_num_ores = 4, clust_size = 3, y_min = mcl_vars.mg_overworld_min, y_max = mcl_util.layer_to_y(12), }) minetest.register_ore({ ore_type = "scatter", ore = "mcl_core:stone_with_diamond", wherein = stonelike, clust_scarcity = 5000, clust_num_ores = 2, clust_size = 2, y_min = mcl_vars.mg_overworld_min, y_max = mcl_util.layer_to_y(12), }) minetest.register_ore({ ore_type = "scatter", ore = "mcl_core:stone_with_diamond", wherein = stonelike, clust_scarcity = 10000, clust_num_ores = 8, clust_size = 3, y_min = mcl_vars.mg_overworld_min, y_max = mcl_util.layer_to_y(12), }) -- Rare spawn minetest.register_ore({ ore_type = "scatter", ore = "mcl_core:stone_with_diamond", wherein = stonelike, clust_scarcity = 20000, clust_num_ores = 1, clust_size = 1, y_min = mcl_util.layer_to_y(13), y_max = mcl_util.layer_to_y(15), }) minetest.register_ore({ ore_type = "scatter", ore = "mcl_core:stone_with_diamond", wherein = stonelike, clust_scarcity = 20000, clust_num_ores = 2, clust_size = 2, y_min = mcl_util.layer_to_y(13), y_max = mcl_util.layer_to_y(15), }) -- -- Redstone -- -- Common spawn minetest.register_ore({ ore_type = "scatter", ore = "mcl_core:stone_with_redstone", wherein = stonelike, clust_scarcity = 500, clust_num_ores = 4, clust_size = 3, y_min = mcl_vars.mg_overworld_min, y_max = mcl_util.layer_to_y(13), }) minetest.register_ore({ ore_type = "scatter", ore = "mcl_core:stone_with_redstone", wherein = stonelike, clust_scarcity = 800, clust_num_ores = 7, clust_size = 4, y_min = mcl_vars.mg_overworld_min, y_max = mcl_util.layer_to_y(13), }) -- Rare spawn minetest.register_ore({ ore_type = "scatter", ore = "mcl_core:stone_with_redstone", wherein = stonelike, clust_scarcity = 1000, clust_num_ores = 4, clust_size = 3, y_min = mcl_util.layer_to_y(13), y_max = mcl_util.layer_to_y(15), }) minetest.register_ore({ ore_type = "scatter", ore = "mcl_core:stone_with_redstone", wherein = stonelike, clust_scarcity = 1600, clust_num_ores = 7, clust_size = 4, y_min = mcl_util.layer_to_y(13), y_max = mcl_util.layer_to_y(15), }) -- -- Emerald -- -- Common spawn minetest.register_ore({ ore_type = "scatter", ore = "mcl_core:stone_with_emerald", wherein = stonelike, clust_scarcity = 14340, clust_num_ores = 1, clust_size = 1, y_min = mcl_vars.mg_overworld_min, y_max = mcl_util.layer_to_y(29), }) -- Rare spawn minetest.register_ore({ ore_type = "scatter", ore = "mcl_core:stone_with_emerald", wherein = stonelike, clust_scarcity = 21510, clust_num_ores = 1, clust_size = 1, y_min = mcl_util.layer_to_y(30), y_max = mcl_util.layer_to_y(32), }) -- -- Lapis Lazuli -- -- Common spawn (in the center) minetest.register_ore({ ore_type = "scatter", ore = "mcl_core:stone_with_lapis", wherein = stonelike, clust_scarcity = 10000, clust_num_ores = 7, clust_size = 4, y_min = mcl_util.layer_to_y(14), y_max = mcl_util.layer_to_y(16), }) -- Rare spawn (below center) minetest.register_ore({ ore_type = "scatter", ore = "mcl_core:stone_with_lapis", wherein = stonelike, clust_scarcity = 12000, clust_num_ores = 6, clust_size = 3, y_min = mcl_util.layer_to_y(10), y_max = mcl_util.layer_to_y(13), }) minetest.register_ore({ ore_type = "scatter", ore = "mcl_core:stone_with_lapis", wherein = stonelike, clust_scarcity = 14000, clust_num_ores = 5, clust_size = 3, y_min = mcl_util.layer_to_y(6), y_max = mcl_util.layer_to_y(9), }) minetest.register_ore({ ore_type = "scatter", ore = "mcl_core:stone_with_lapis", wherein = stonelike, clust_scarcity = 16000, clust_num_ores = 4, clust_size = 3, y_min = mcl_util.layer_to_y(2), y_max = mcl_util.layer_to_y(5), }) minetest.register_ore({ ore_type = "scatter", ore = "mcl_core:stone_with_lapis", wherein = stonelike, clust_scarcity = 18000, clust_num_ores = 3, clust_size = 2, y_min = mcl_util.layer_to_y(0), y_max = mcl_util.layer_to_y(2), }) -- Rare spawn (above center) minetest.register_ore({ ore_type = "scatter", ore = "mcl_core:stone_with_lapis", wherein = stonelike, clust_scarcity = 12000, clust_num_ores = 6, clust_size = 3, y_min = mcl_util.layer_to_y(17), y_max = mcl_util.layer_to_y(20), }) minetest.register_ore({ ore_type = "scatter", ore = "mcl_core:stone_with_lapis", wherein = stonelike, clust_scarcity = 14000, clust_num_ores = 5, clust_size = 3, y_min = mcl_util.layer_to_y(21), y_max = mcl_util.layer_to_y(24), }) minetest.register_ore({ ore_type = "scatter", ore = "mcl_core:stone_with_lapis", wherein = stonelike, clust_scarcity = 16000, clust_num_ores = 4, clust_size = 3, y_min = mcl_util.layer_to_y(25), y_max = mcl_util.layer_to_y(28), }) minetest.register_ore({ ore_type = "scatter", ore = "mcl_core:stone_with_lapis", wherein = stonelike, clust_scarcity = 18000, clust_num_ores = 3, clust_size = 2, y_min = mcl_util.layer_to_y(29), y_max = mcl_util.layer_to_y(32), }) minetest.register_ore({ ore_type = "scatter", ore = "mcl_core:stone_with_lapis", wherein = stonelike, clust_scarcity = 32000, clust_num_ores = 1, clust_size = 1, y_min = mcl_util.layer_to_y(31), y_max = mcl_util.layer_to_y(32), }) if mg_name ~= "flat" then -- Water and lava springs (single blocks of lava/water source) -- Water appears at nearly every height, but not near the bottom minetest.register_ore({ ore_type = "scatter", ore = "mcl_core:water_source", wherein = {"mcl_core:stone", "mcl_core:andesite", "mcl_core:diorite", "mcl_core:granite", "mcl_core:dirt"}, clust_scarcity = 9000, clust_num_ores = 1, clust_size = 1, y_min = mcl_util.layer_to_y(5), y_max = mcl_util.layer_to_y(128), }) -- Lava springs are rather common at -31 and below minetest.register_ore({ ore_type = "scatter", ore = "mcl_core:lava_source", wherein = stonelike, clust_scarcity = 2000, clust_num_ores = 1, clust_size = 1, y_min = mcl_util.layer_to_y(1), y_max = mcl_util.layer_to_y(10), }) minetest.register_ore({ ore_type = "scatter", ore = "mcl_core:lava_source", wherein = stonelike, clust_scarcity = 9000, clust_num_ores = 1, clust_size = 1, y_min = mcl_util.layer_to_y(11), y_max = mcl_util.layer_to_y(31), }) -- Lava springs will become gradually rarer with increasing height minetest.register_ore({ ore_type = "scatter", ore = "mcl_core:lava_source", wherein = stonelike, clust_scarcity = 32000, clust_num_ores = 1, clust_size = 1, y_min = mcl_util.layer_to_y(32), y_max = mcl_util.layer_to_y(47), }) minetest.register_ore({ ore_type = "scatter", ore = "mcl_core:lava_source", wherein = stonelike, clust_scarcity = 72000, clust_num_ores = 1, clust_size = 1, y_min = mcl_util.layer_to_y(48), y_max = mcl_util.layer_to_y(61), }) -- Lava may even appear above surface, but this is very rare minetest.register_ore({ ore_type = "scatter", ore = "mcl_core:lava_source", wherein = stonelike, clust_scarcity = 96000, clust_num_ores = 1, clust_size = 1, y_min = mcl_util.layer_to_y(62), y_max = mcl_util.layer_to_y(127), }) end -- Rarely replace stone with stone monster eggs local monster_egg_scarcity if mg_name == "v6" then monster_egg_scarcity = 28 * 28 * 28 else monster_egg_scarcity = 22 * 22 * 22 end minetest.register_ore({ ore_type = "scatter", ore = "mcl_monster_eggs:monster_egg_stone", wherein = "mcl_core:stone", clust_scarcity = monster_egg_scarcity, clust_num_ores = 3, clust_size = 2, y_min = mcl_vars.mg_overworld_min, y_max = mcl_vars.mg_overworld_max, -- TODO: Limit by biome }) local function register_mgv6_decorations() -- Cacti minetest.register_decoration({ deco_type = "simple", place_on = {"group:sand"}, sidelen = 16, noise_params = { offset = -0.012, scale = 0.024, spread = {x = 100, y = 100, z = 100}, seed = 257, octaves = 3, persist = 0.6 }, y_min = 4, y_max = mcl_vars.mg_overworld_max, decoration = "mcl_core:cactus", height = 1, height_max = 3, }) -- Sugar canes minetest.register_decoration({ deco_type = "simple", place_on = {"mcl_core:dirt", "mcl_core:coarse_dirt", "mcl_core:dirt_with_grass", "group:sand", "mcl_core:podzol", "mcl_core:reeds"}, sidelen = 16, noise_params = { offset = 0.3, scale = 0.7, spread = {x = 100, y = 100, z = 100}, seed = 2, octaves = 3, persist = 0.7 }, y_min = 1, y_max = mcl_vars.mg_overworld_max, decoration = "mcl_core:reeds", height = 1, height_max = 3, spawn_by = { "mcl_core:water_source", "group:frosted_ice" }, num_spawn_by = 1, }) -- Doubletall grass minetest.register_decoration({ deco_type = "schematic", schematic = { size = { x=1, y=3, z=1 }, data = { { name = "air", prob = 0 }, { name = "mcl_flowers:double_grass", param1 = 255, }, { name = "mcl_flowers:double_grass_top", param1 = 255, }, }, }, replacements = { ["mcl_flowers:tallgrass"] = "mcl_flowers:double_grass" }, place_on = {"mcl_core:dirt_with_grass"}, sidelen = 16, noise_params = { offset = -0.01, scale = 0.03, spread = {x = 300, y = 300, z = 300}, seed = 420, octaves = 2, persist = 0.6, }, y_min = 1, y_max = mcl_vars.mg_overworld_max, }) -- Large ferns minetest.register_decoration({ deco_type = "schematic", schematic = { size = { x=1, y=3, z=1 }, data = { { name = "air", prob = 0 }, { name = "mcl_flowers:double_fern", param1=255, }, { name = "mcl_flowers:double_fern_top", param1=255, }, }, }, replacements = { ["mcl_flowers:fern"] = "mcl_flowers:double_fern" }, -- v6 hack: This makes sure large ferns only appear in jungles spawn_by = { "mcl_core:jungletree", "mcl_flowers:fern" }, num_spawn_by = 1, place_on = {"mcl_core:podzol"}, sidelen = 16, noise_params = { offset = 0, scale = 0.01, spread = {x = 250, y = 250, z = 250}, seed = 333, octaves = 2, persist = 0.66, }, y_min = 1, y_max = mcl_vars.mg_overworld_max, }) -- Large flowers local register_large_flower = function(name, seed, offset) minetest.register_decoration({ deco_type = "schematic", schematic = { size = { x=1, y=3, z=1 }, data = { { name = "air", prob = 0 }, { name = "mcl_flowers:"..name, param1=255, }, { name = "mcl_flowers:"..name.."_top", param1=255, }, }, }, place_on = {"mcl_core:dirt_with_grass"}, sidelen = 16, noise_params = { offset = offset, scale = 0.01, spread = {x = 300, y = 300, z = 300}, seed = seed, octaves = 5, persist = 0.62, }, y_min = 1, y_max = mcl_vars.overworld_max, flags = "", }) end register_large_flower("rose_bush", 9350, -0.008) register_large_flower("peony", 10450, -0.008) register_large_flower("lilac", 10600, -0.007) register_large_flower("sunflower", 2940, -0.005) -- Lily pad minetest.register_decoration({ deco_type = "schematic", schematic = { size = { x=1, y=3, z=1 }, data = { { name = "mcl_core:water_source", prob = 0 }, { name = "mcl_core:water_source" }, { name = "mcl_flowers:waterlily", param1 = 255 }, }, }, place_on = "mcl_core:dirt", sidelen = 16, noise_params = { offset = -0.12, scale = 0.3, spread = {x = 200, y = 200, z = 200}, seed = 503, octaves = 6, persist = 0.7, }, y_min = 0, y_max = 0, rotation = "random", }) -- Pumpkin minetest.register_decoration({ deco_type = "schematic", schematic = { size = { x=1, y=2, z=1 }, data = { { name = "air", prob = 0 }, { name = "mcl_farming:pumpkin_face" }, }, }, place_on = {"mcl_core:dirt_with_grass"}, sidelen = 16, noise_params = { offset = -0.008, scale = 0.00666, spread = {x = 250, y = 250, z = 250}, seed = 666, octaves = 6, persist = 0.666 }, y_min = 1, y_max = mcl_vars.overworld_max, rotation = "random", }) -- Tall grass minetest.register_decoration({ deco_type = "simple", place_on = {"mcl_core:dirt_with_grass"}, sidelen = 8, noise_params = { offset = 0.01, scale = 0.3, spread = {x = 500, y = 500, z = 500}, seed = 420, octaves = 2, persist = 0.6 }, y_min = 1, y_max = mcl_vars.overworld_max, decoration = "mcl_flowers:tallgrass", }) -- Add a small amount of tall grass everywhere to avoid areas completely empty devoid of tall grass minetest.register_decoration({ deco_type = "simple", place_on = {"mcl_core:dirt_with_grass"}, sidelen = 8, fill_ratio = 0.001, y_min = 1, y_max = mcl_vars.overworld_max, decoration = "mcl_flowers:tallgrass", }) local mushrooms = {"mcl_mushrooms:mushroom_red", "mcl_mushrooms:mushroom_brown"} local mseeds = { 7133, 8244 } for m=1, #mushrooms do -- Mushrooms next to trees minetest.register_decoration({ deco_type = "simple", place_on = {"mcl_core:dirt_with_grass", "mcl_core:dirt", "mcl_core:podzol", "mcl_core:mycelium", "mcl_core:stone", "mcl_core:andesite", "mcl_core:diorite", "mcl_core:granite"}, sidelen = 16, noise_params = { offset = 0.04, scale = 0.04, spread = {x = 100, y = 100, z = 100}, seed = mseeds[m], octaves = 3, persist = 0.6 }, y_min = 1, y_max = mcl_vars.mg_overworld_max, decoration = mushrooms[m], spawn_by = { "mcl_core:tree", "mcl_core:sprucetree", "mcl_core:darktree", "mcl_core:birchtree", }, num_spawn_by = 1, }) end -- Dead bushes minetest.register_decoration({ deco_type = "simple", place_on = {"group:sand", "mcl_core:podzol", "mcl_core:dirt", "mcl_core:coarse_dirt", "group:hardened_clay"}, sidelen = 16, noise_params = { offset = 0, scale = 0.035, spread = {x = 100, y = 100, z = 100}, seed = 1972, octaves = 3, persist = 0.6 }, y_min = 4, y_max = mcl_vars.mg_overworld_max, decoration = "mcl_core:deadbush", }) local function register_mgv6_flower(name, seed, offset, y_max) if offset == nil then offset = 0 end if y_max == nil then y_max = mcl_vars.mg_overworld_max end minetest.register_decoration({ deco_type = "simple", place_on = {"mcl_core:dirt_with_grass"}, sidelen = 16, noise_params = { offset = offset, scale = 0.006, spread = {x = 100, y = 100, z = 100}, seed = seed, octaves = 3, persist = 0.6 }, y_min = 1, y_max = y_max, decoration = "mcl_flowers:"..name, }) end register_mgv6_flower("tulip_red", 436) register_mgv6_flower("tulip_orange", 536) register_mgv6_flower("tulip_pink", 636) register_mgv6_flower("tulip_white", 736) register_mgv6_flower("azure_bluet", 800) register_mgv6_flower("dandelion", 8) -- Allium is supposed to only appear in flower forest in MC. There are no flower forests in v6. -- We compensate by making it slightly rarer in v6. register_mgv6_flower("allium", 0, -0.001) --[[ Blue orchid is supposed to appear in swamplands. There are no swamplands in v6. We emulate swamplands by limiting the height to 5 levels above sea level, which should be close to the water. ]] register_mgv6_flower("blue_orchid", 64500, nil, mcl_util.layer_to_y(67)) register_mgv6_flower("oxeye_daisy", 3490) register_mgv6_flower("poppy", 9439) end -- Apply mapgen-specific mapgen code if mg_name == "v6" then register_mgv6_decorations() minetest.set_mapgen_setting("mg_flags", "caves,nodungeons,decorations,light", true) elseif mg_name == "flat" then local classic = minetest.get_mapgen_setting("mcl_superflat_classic") if classic == nil then classic = minetest.settings:get_bool("mcl_superflat_classic") minetest.set_mapgen_setting("mcl_superflat_classic", "true", true) end if classic ~= "false" then -- Enforce superflat-like mapgen: No hills, lakes or caves minetest.set_mapgen_setting("mg_flags", "nocaves,nodungeons,nodecorations,light", true) minetest.set_mapgen_setting("mgflat_spflags", "nolakes,nohills", true) else -- If superflat mode is disabled, mapgen is way more liberal minetest.set_mapgen_setting("mg_flags", "caves,nodungeons,nodecorations,light", true) end else minetest.set_mapgen_setting("mg_flags", "caves,nodungeons,decorations,light", true) end -- Helper function for converting a MC probability to MT, with -- regards to MapBlocks. -- Some MC generated structures are generated on per-chunk -- probability. -- The MC probability is 1/x per Minecraft chunk (16×16). -- x: The MC probability is 1/x. -- minp, maxp: MapBlock limits -- returns: Probability (1/return_value) for a single MT mapblock local function minecraft_chunk_probability(x, minp, maxp) -- 256 is the MC chunk height return x * (((maxp.x-minp.x+1)*(maxp.z-minp.z+1)) / 256) end -- Takes an index of a biomemap table (from minetest.get_mapgen_object), -- minp and maxp (from an on_generated callback) and returns the real world coordinates -- as X, Z. -- Inverse function of xz_to_biomemap local biomemap_to_xz = function(index, minp, maxp) local xwidth = maxp.x - minp.x + 1 local zwidth = maxp.z - minp.z + 1 local x = ((index-1) % xwidth) + minp.x local z = ((index-1) / zwidth) + minp.z return x, z end -- Takes x and z coordinates and minp and maxp of a generated chunk -- (in on_generated callback) and returns a biomemap index) -- Inverse function of biomemap_to_xz local xz_to_biomemap_index = function(x, z, minp, maxp) local xwidth = maxp.x - minp.x + 1 local zwidth = maxp.z - minp.z + 1 local minix = x % xwidth local miniz = z % zwidth return (minix + miniz * zwidth) + 1 end -- Perlin noise objects local perlin_structures local perlin_vines, perlin_vines_fine, perlin_vines_upwards, perlin_vines_length, perlin_vines_density -- TODO: Try to use more efficient clay generating code local function generate_clay(minp, maxp, seed) if maxp.y >= 2 and minp.y <= 0 then -- Generate clay -- Assume X and Z lengths are equal local divlen = 4 local divs = (maxp.x-minp.x)/divlen+1; for divx=0+1,divs-1-1 do for divz=0+1,divs-1-1 do local cx = minp.x + math.floor((divx+0.5)*divlen) local cz = minp.z + math.floor((divz+0.5)*divlen) if minetest.get_node({x=cx,y=1,z=cz}).name == "mcl_core:water_source" and minetest.get_item_group(minetest.get_node({x=cx,y=0,z=cz}).name, "sand") == 1 then local is_shallow = true local num_water_around = 0 if minetest.get_node({x=cx-divlen*2,y=1,z=cz+0}).name == "mcl_core:water_source" then num_water_around = num_water_around + 1 end if minetest.get_node({x=cx+divlen*2,y=1,z=cz+0}).name == "mcl_core:water_source" then num_water_around = num_water_around + 1 end if minetest.get_node({x=cx+0,y=1,z=cz-divlen*2}).name == "mcl_core:water_source" then num_water_around = num_water_around + 1 end if minetest.get_node({x=cx+0,y=1,z=cz+divlen*2}).name == "mcl_core:water_source" then num_water_around = num_water_around + 1 end if num_water_around >= 2 then is_shallow = false end if is_shallow then for x1=-divlen,divlen do for z1=-divlen,divlen do if minetest.get_item_group(minetest.get_node({x=cx+x1,y=0,z=cz+z1}).name, "sand") == 1 then minetest.set_node({x=cx+x1,y=0,z=cz+z1}, {name="mcl_core:clay"}) end end end end end end end end end -- TODO: Try to use more efficient structure generating code local function generate_structures(minp, maxp, seed, biomemap) local chunk_has_desert_well = false local chunk_has_desert_temple = false local chunk_has_igloo = false local struct_min, struct_max = -3, 64 if maxp.y >= struct_min and minp.y <= struct_max then -- Generate structures perlin_structures = perlin_structures or minetest.get_perlin(329, 3, 0.6, 100) -- Assume X and Z lengths are equal local divlen = 5 local divs = (maxp.x-minp.x)/divlen+1; for divx=0,divs-1 do for divz=0,divs-1 do local x0 = minp.x + math.floor((divx+0)*divlen) local z0 = minp.z + math.floor((divz+0)*divlen) local x1 = minp.x + math.floor((divx+1)*divlen) local z1 = minp.z + math.floor((divz+1)*divlen) -- Determine amount from perlin noise local amount = math.floor(perlin_structures:get2d({x=x0, y=z0}) * 9) -- Find random positions based on this random local pr = PseudoRandom(seed+1) for i=0, amount do local x = pr:next(x0, x1) local z = pr:next(z0, z1) -- Find ground level local ground_y = nil for y = struct_max, struct_min, -1 do local checknode = minetest.get_node({x=x,y=y,z=z}).name if minetest.registered_nodes[checknode].walkable then ground_y = y break end end if ground_y then local p = {x=x,y=ground_y+1,z=z} local nn = minetest.get_node(p).name -- Check if the node can be replaced if minetest.registered_nodes[nn] and minetest.registered_nodes[nn].buildable_to then nn = minetest.get_node({x=x,y=ground_y,z=z}).name local struct = false -- Desert temples and desert wells if nn == "mcl_core:sand" or (nn == "mcl_core:sandstone") then if not chunk_has_desert_temple and not chunk_has_desert_well and ground_y > 3 then -- Spawn desert temple -- TODO: Check surface if math.random(1,12000) == 1 then mcl_structures.call_struct(p, "desert_temple") chunk_has_desert_temple = true end end if not chunk_has_desert_temple and not chunk_has_desert_well and ground_y > 3 then local desert_well_prob = minecraft_chunk_probability(1000, minp, maxp) -- Spawn desert well if math.random(1, desert_well_prob) == 1 then -- Check surface local surface = minetest.find_nodes_in_area({x=p.x,y=p.y-1,z=p.z}, {x=p.x+5, y=p.y-1, z=p.z+5}, "mcl_core:sand") if #surface >= 25 then mcl_structures.call_struct(p, "desert_well") chunk_has_desert_well = true end end end -- Igloos elseif not chunk_has_igloo and (nn == "mcl_core:snowblock" or nn == "mcl_core:snow" or nn == "mcl_core:dirt_with_grass_snow") then if math.random(1, 4400) == 1 then -- Check surface local floor = {x=p.x+9, y=p.y-1, z=p.z+9} local surface = minetest.find_nodes_in_area({x=p.x,y=p.y-1,z=p.z}, floor, "mcl_core:snowblock") local surface2 = minetest.find_nodes_in_area({x=p.x,y=p.y-1,z=p.z}, floor, "mcl_core:dirt_with_grass_snow") if #surface + #surface2 >= 63 then mcl_structures.call_struct(p, "igloo") chunk_has_igloo = true end end end -- Fossil if nn == "mcl_core:sandstone" or nn == "mcl_core:sand" and not chunk_has_desert_temple and ground_y > 3 then local fossil_prob = minecraft_chunk_probability(64, minp, maxp) if math.random(1, fossil_prob) == 1 then -- Spawn fossil below desert surface between layers 40 and 49 local p1 = {x=p.x, y=math.random(mcl_util.layer_to_y(40), mcl_util.layer_to_y(49)), z=p.z} -- Very rough check of the environment (we expect to have enough stonelike nodes). -- Fossils may still appear partially exposed in caves, but this is O.K. local p2 = vector.add(p1, 4) local nodes = minetest.find_nodes_in_area(p1, p2, {"mcl_core:sandstone", "mcl_core:stone", "mcl_core:diorite", "mcl_core:andesite", "mcl_core:granite", "mcl_core:stone_with_coal", "mcl_core:dirt", "mcl_core:gravel"}) if #nodes >= 100 then -- >= 80% mcl_structures.call_struct(p1, "fossil") end end end -- Witch hut if ground_y <= 0 and nn == "mcl_core:dirt" then local prob = minecraft_chunk_probability(48, minp, maxp) local swampland = minetest.get_biome_id("jungle_edge") local swampland_shore = minetest.get_biome_id("jungle_edge_ocean") -- Where do witches live? local here_be_witches = false if mg_name == "v6" then -- In ye good ol' landes of v6, witches will settle at any -- shores of dirt. here_be_witches = true else -- The townsfolk told me that witches live in the swamplands! local bi = xz_to_biomemap_index(p.x, p.z, minp, maxp) if biomemap[bi] == swampland or biomemap[bi] == swampland_shore then here_be_witches = true end end -- We still need a bit of luck! if here_be_witches and math.random(1, prob) == 1 then local r = tostring(math.random(0, 3) * 90) -- "0", "90", "180" or 270" local p1 = {x=p.x-1, y=WITCH_HUT_HEIGHT+2, z=p.z-1} if r == "0" or r == "180" then size = {x=10, y=4, z=8} else size = {x=8, y=4, z=10} end local p2 = vector.add(p1, size) -- This checks free space at the “body” of the hut and a bit around. -- ALL nodes must be free for the placement to succeed. local free_nodes = minetest.find_nodes_in_area(p1, p2, {"air", "mcl_core:water_source", "mcl_flowers:waterlily"}) if #free_nodes >= ((size.x+1)*(size.y+1)*(size.z+1)) then local place = {x=p.x, y=WITCH_HUT_HEIGHT-1, z=p.z} -- FIXME: For some mysterious reason (black magic?) this -- function does sometimes NOT spawn the witch hut. One can only see the -- oak wood nodes in the water, but no hut. :-/ mcl_structures.call_struct(place, "witch_hut", r) -- TODO: Spawn witch in or around hut when the mob sucks less. local place_tree_if_free = function(pos, prev_result) local nn = minetest.get_node(pos).name if nn == "mcl_flowers:waterlily" or nn == "mcl_core:water_source" or nn == "mcl_core:water_flowing" or nn == "air" then minetest.set_node(pos, {name="mcl_core:tree", param2=0}) return prev_result else return false end end local offsets if r == "0" then offsets = { {x=1, y=0, z=1}, {x=1, y=0, z=5}, {x=6, y=0, z=1}, {x=6, y=0, z=5}, } elseif r == "180" then offsets = { {x=2, y=0, z=1}, {x=2, y=0, z=5}, {x=7, y=0, z=1}, {x=7, y=0, z=5}, } elseif r == "270" then offsets = { {x=1, y=0, z=1}, {x=5, y=0, z=1}, {x=1, y=0, z=6}, {x=5, y=0, z=6}, } elseif r == "90" then offsets = { {x=1, y=0, z=2}, {x=5, y=0, z=2}, {x=1, y=0, z=7}, {x=5, y=0, z=7}, } end for o=1, #offsets do local ok = true for y=place.y-1, place.y-64, -1 do local tpos = vector.add(place, offsets[o]) tpos.y = y ok = place_tree_if_free(tpos, ok) if not ok then break end end end end end end -- Ice spikes in v6 -- In other mapgens, ice spikes are generated as decorations. if mg_name == "v6" and not chunk_has_igloo and nn == "mcl_core:snowblock" then local spike = math.random(1, 3000) if spike < 3 then -- Check surface local floor = {x=p.x+4, y=p.y-1, z=p.z+4} local surface = minetest.find_nodes_in_area({x=p.x+1,y=p.y-1,z=p.z+1}, floor, {"mcl_core:snowblock", "mcl_core:dirt_with_grass_snow"}) -- Check for collision with spruce local spruce_collisions = minetest.find_nodes_in_area({x=p.x+1,y=p.y+2,z=p.z+1}, {x=p.x+4, y=p.y+6, z=p.z+4}, {"mcl_core:sprucetree", "mcl_core:spruceleaves"}) if #surface >= 9 and #spruce_collisions == 0 then mcl_structures.call_struct(p, "ice_spike_large") end elseif spike < 100 then -- Check surface local floor = {x=p.x+6, y=p.y-1, z=p.z+6} local surface = minetest.find_nodes_in_area({x=p.x+1,y=p.y-1,z=p.z+1}, floor, {"mcl_core:snowblock", "mcl_core:dirt_with_grass_snow"}) -- Check for collision with spruce local spruce_collisions = minetest.find_nodes_in_area({x=p.x+1,y=p.y+1,z=p.z+1}, {x=p.x+6, y=p.y+6, z=p.z+6}, {"mcl_core:sprucetree", "mcl_core:spruceleaves"}) if #surface >= 25 and #spruce_collisions == 0 then mcl_structures.call_struct(p, "ice_spike_small") end end end end end end end end end end -- Buffer for LuaVoxelManip local lvm_buffer = {} -- Generate tree decorations in the bounding box. This adds: -- * Cocoa at jungle trees -- * Jungle tree vines -- * Oak vines in swamplands local function generate_tree_decorations(minp, maxp, seed, biomemap) if maxp.y < 0 then return end local oaktree, oakleaves, jungletree, jungleleaves = {}, {}, {}, {} local swampland = minetest.get_biome_id("swampland") local swampland_shore = minetest.get_biome_id("swampland_shore") local jungle = minetest.get_biome_id("jungle") local jungle_shore = minetest.get_biome_id("jungle_shore") local jungle_edge = minetest.get_biome_id("jungle_edge") local jungle_edge_shore = minetest.get_biome_id("jungle_edge_shore") if biomemap then -- Biome map available: Check if the required biome (jungle or swampland) -- is in this mapchunk. We are only interested in trees in the correct biome. -- The nodes are added if the correct biome is *anywhere* in the mapchunk. -- TODO: Strictly generate vines in the correct biomes only. local swamp_biome_found, jungle_biome_found = false, false for b=1, #biomemap do local id = biomemap[b] if not swamp_biome_found and (id == swampland or id == swampland_shore) then oaktree = minetest.find_nodes_in_area(minp, maxp, {"mcl_core:tree"}) oakleaves = minetest.find_nodes_in_area(minp, maxp, {"mcl_core:leaves"}) swamp_biome_found = true elseif not jungle_biome_found and (id == jungle or id == jungle_shore or id == jungle_edge or id == jungle_edge_shore) then jungletree = minetest.find_nodes_in_area(minp, maxp, {"mcl_core:jungletree"}) jungleleaves = minetest.find_nodes_in_area(minp, maxp, {"mcl_core:jungleleaves"}) jungle_biome_found = true end if swamp_biome_found and jungle_biome_found then break end end else -- If there is no biome map, we just count all jungle things we can find. -- Oak vines will not be generated. jungletree = minetest.find_nodes_in_area(minp, maxp, {"mcl_core:jungletree"}) jungleleaves = minetest.find_nodes_in_area(minp, maxp, {"mcl_core:jungleleaves"}) end local pos, treepos, dir -- Pass 1: Generate cocoas at jungle trees for n = 1, #jungletree do pos = jungletree[n] treepos = table.copy(pos) if minetest.find_node_near(pos, 1, {"mcl_core:jungleleaves"}) then dir = math.random(1, 40) if dir == 1 then pos.z = pos.z + 1 elseif dir == 2 then pos.z = pos.z - 1 elseif dir == 3 then pos.x = pos.x + 1 elseif dir == 4 then pos.x = pos.x -1 end local nn = minetest.get_node(pos).name if dir < 5 and nn == "air" and minetest.get_node_light(pos) > 12 then minetest.swap_node(pos, { name = "mcl_cocoas:cocoa_" .. tostring(math.random(1, 3)), param2 = minetest.dir_to_facedir(vector.subtract(treepos, pos)) }) end end end -- Pass 2: Generate vines at jungle wood, jungle leaves in jungle and oak wood, oak leaves in swampland perlin_vines = perlin_vines or minetest.get_perlin(555, 4, 0.6, 500) perlin_vines_fine = perlin_vines_fine or minetest.get_perlin(43000, 3, 0.6, 1) perlin_vines_length = perlin_vines_length or minetest.get_perlin(435, 4, 0.6, 75) perlin_vines_upwards = perlin_vines_upwards or minetest.get_perlin(436, 3, 0.6, 10) perlin_vines_density = perlin_vines_density or minetest.get_perlin(436, 3, 0.6, 500) local treething for i=1, 4 do if i==1 then treething = jungletree elseif i == 2 then treething = jungleleaves elseif i == 3 then treething = oaktree elseif i == 4 then treething = oakleaves end for n = 1, #treething do pos = treething[n] treepos = table.copy(pos) local dirs = { {x=1,y=0,z=0}, {x=-1,y=0,z=0}, {x=0,y=0,z=1}, {x=0,y=0,z=-1}, } for d = 1, #dirs do local pos = vector.add(pos, dirs[d]) local nn = minetest.get_node(pos).name if perlin_vines:get2d(pos) > -1.0 and perlin_vines_fine:get3d(pos) > math.max(0.33333, perlin_vines_density:get2d(pos)) and nn == "air" then local newnode = { name = "mcl_core:vine", param2 = minetest.dir_to_wallmounted(vector.subtract(treepos, pos)) } -- Determine growth direction local grow_upwards = false -- Only possible on the wood, not on the leaves if i == 1 then grow_upwards = perlin_vines_upwards:get3d(pos) > 0.8 end if grow_upwards then -- Grow vines up 1-4 nodes, even through jungleleaves. -- This may give climbing access all the way to the top of the tree :-) -- But this will be fairly rare. local length = math.ceil(math.abs(perlin_vines_length:get3d(pos)) * 4) for l=0, length-1 do local tnn = minetest.get_node(treepos).name local nn = minetest.get_node(pos).name if (nn == "air" or nn == "mcl_core:jungleleaves" or nn == "mcl_core:leaves") and mcl_core.supports_vines(tnn) then minetest.set_node(pos, newnode) else break end pos.y = pos.y + 1 treepos.y = treepos.y + 1 end else -- Grow vines down 1-7 nodes local length = math.ceil(math.abs(perlin_vines_length:get3d(pos)) * 7) for l=0, length-1 do if minetest.get_node(pos).name == "air" then minetest.set_node(pos, newnode) else break end pos.y = pos.y - 1 end end end end end end end local pr_shroom = PseudoRandom(os.time()-24359) -- Generate mushrooms in caves manually. -- Minetest's API does not support decorations in caves yet. :-( local generate_underground_mushrooms = function(minp, maxp, seed) -- Generate rare underground mushrooms -- TODO: Make them appear in groups, use Perlin noise local min, max = mcl_vars.mg_lava_overworld_max + 4, 0 if minp.y > max or maxp.y < min then return end local bpos local stone = minetest.find_nodes_in_area_under_air(minp, maxp, {"mcl_core:stone", "mcl_core:dirt", "mcl_core:mycelium", "mcl_core:podzol", "mcl_core:andesite", "mcl_core:diorite", "mcl_core:granite", "mcl_core:stone_with_coal", "mcl_core:stone_with_iron", "mcl_core:stone_with_gold"}) for n = 1, #stone do bpos = {x = stone[n].x, y = stone[n].y + 1, z = stone[n].z } if bpos.y >= min and bpos.y <= max and minetest.get_node_light(bpos, 0.5) <= 12 and pr_shroom:next(1,1000) < 4 then if pr_shroom:next(1,2) == 1 then minetest.set_node(bpos, {name = "mcl_mushrooms:mushroom_brown"}) else minetest.set_node(bpos, {name = "mcl_mushrooms:mushroom_red"}) end end end end local pr_nether = PseudoRandom(os.time()+667) -- Generate Nether decorations manually: Eternal fire, mushrooms, nether wart -- Minetest's API does not support decorations in caves yet. :-( local generate_nether_decorations = function(minp, maxp, seed) if minp.y > mcl_vars.mg_nether_max or maxp.y < mcl_vars.mg_nether_min then return end -- TODO: Generate everything based on Perlin noise instead of PseudoRandom local bpos local rack = minetest.find_nodes_in_area_under_air(minp, maxp, {"mcl_nether:netherrack"}) local magma = minetest.find_nodes_in_area_under_air(minp, maxp, {"mcl_nether:magma"}) local ssand = minetest.find_nodes_in_area_under_air(minp, maxp, {"mcl_nether:soul_sand"}) -- Helper function to spawn “fake” decoration local special_deco = function(nodes, spawn_func) for n = 1, #nodes do bpos = {x = nodes[n].x, y = nodes[n].y + 1, z = nodes[n].z } spawn_func(bpos) end end -- Eternal fire on netherrack special_deco(rack, function(bpos) -- Eternal fire on netherrack if pr_nether:next(1,100) <= 3 then minetest.set_node(bpos, {name = "mcl_fire:eternal_fire"}) end end) -- Eternal fire on magma cubes special_deco(magma, function(bpos) if pr_nether:next(1,150) == 1 then minetest.set_node(bpos, {name = "mcl_fire:eternal_fire"}) end end) -- Mushrooms on netherrack -- Note: Spawned *after* the fire because of light level checks special_deco(rack, function(bpos) if bpos.y > mcl_vars.mg_lava_nether_max + 6 and minetest.get_node_light(bpos, 0.5) <= 12 and pr_nether:next(1,1000) <= 4 then -- TODO: Make mushrooms appear in groups, use Perlin noise if pr_nether:next(1,2) == 1 then minetest.set_node(bpos, {name = "mcl_mushrooms:mushroom_brown"}) else minetest.set_node(bpos, {name = "mcl_mushrooms:mushroom_red"}) end end end) -- Nether wart on soul sand -- TODO: Spawn in Nether fortresses special_deco(ssand, function(bpos) if pr_nether:next(1,170) == 1 then minetest.set_node(bpos, {name = "mcl_nether:nether_wart"}) end end) end local GEN_MAX = mcl_vars.mg_lava_overworld_max or mcl_vars.mg_overworld_max local c_bedrock = minetest.get_content_id("mcl_core:bedrock") local c_stone = minetest.get_content_id("mcl_core:stone") local c_dirt = minetest.get_content_id("mcl_core:dirt") local c_dirt_with_grass = minetest.get_content_id("mcl_core:dirt_with_grass") local c_dirt_with_grass_snow = minetest.get_content_id("mcl_core:dirt_with_grass_snow") local c_sand = minetest.get_content_id("mcl_core:sand") local c_sandstone = minetest.get_content_id("mcl_core:sandstone") local c_redsand = minetest.get_content_id("mcl_core:redsand") local c_redsandstone = minetest.get_content_id("mcl_core:redsandstone") local c_void = minetest.get_content_id("mcl_core:void") local c_lava = minetest.get_content_id("mcl_core:lava_source") local c_water = minetest.get_content_id("mcl_core:water_source") local c_soul_sand = minetest.get_content_id("mcl_nether:soul_sand") local c_netherrack = minetest.get_content_id("mcl_nether:netherrack") local c_nether_lava = minetest.get_content_id("mcl_nether:nether_lava_source") local c_end_stone = minetest.get_content_id("mcl_end:end_stone") local c_realm_barrier = minetest.get_content_id("mcl_core:realm_barrier") local c_top_snow = minetest.get_content_id("mcl_core:snow") local c_snow_block = minetest.get_content_id("mcl_core:snowblock") local c_air = minetest.get_content_id("air") -- Below the bedrock, generate air/void minetest.register_on_generated(function(minp, maxp, seed) local vm, emin, emax = minetest.get_mapgen_object("voxelmanip") local data = vm:get_data(lvm_buffer) local area = VoxelArea:new({MinEdge=emin, MaxEdge=emax}) local lvm_used = false local ymin, ymax -- Generate basic layer-based nodes: void, bedrock, realm barrier, lava seas, etc. -- Also perform some basic node replacements. -- Helper function to set all nodes in the layers between min and max. -- content_id: Node to set -- check: optional. -- If content_id, node will be set only if it is equal to check. -- If function(pos_to_check, content_id_at_this_pos), will set node only if returns true. -- min, max: Minimum and maximum Y levels of the layers to set -- minp, maxp: minp, maxp of the on_generated -- lvm_used: Set to true if any node in this on_generated has been set before. -- -- returns true if any node was set and lvm_used otherwise local function set_layers(content_id, check, min, max, minp, maxp, lvm_used) if (maxp.y >= min and minp.y <= max) then for y = math.max(min, minp.y), math.min(max, maxp.y) do for x = minp.x, maxp.x do for z = minp.z, maxp.z do local p_pos = area:index(x, y, z) if check then if type(check) == "function" and check({x=x,y=y,z=z}, data[p_pos]) then data[p_pos] = content_id lvm_used = true elseif check == data[p_pos] then data[p_pos] = content_id lvm_used = true end else data[p_pos] = content_id lvm_used = true end end end end end return lvm_used end -- The Void lvm_used = set_layers(c_void, nil, -31000, mcl_vars.mg_nether_min-1, minp, maxp, lvm_used) lvm_used = set_layers(c_void, nil, mcl_vars.mg_nether_max+1, mcl_vars.mg_end_min-1, minp, maxp, lvm_used) lvm_used = set_layers(c_void, nil, mcl_vars.mg_end_max+1, mcl_vars.mg_realm_barrier_overworld_end_min-1, minp, maxp, lvm_used) lvm_used = set_layers(c_void, nil, mcl_vars.mg_realm_barrier_overworld_end_max+1, mcl_vars.mg_overworld_min-1, minp, maxp, lvm_used) -- Realm barrier between the Overworld void and the End lvm_used = set_layers(c_realm_barrier, nil, mcl_vars.mg_realm_barrier_overworld_end_min, mcl_vars.mg_realm_barrier_overworld_end_max, minp, maxp, lvm_used) -- Bedrock local bedrock_check if mcl_vars.mg_bedrock_is_rough then bedrock_check = function(pos) local y = pos.y -- Bedrock layers with increasing levels of roughness, until a perfecly flat bedrock later at the bottom layer -- This code assumes a bedrock height of 5 layers. local diff = mcl_vars.mg_bedrock_overworld_max - y -- Overworld bedrock local ndiff1 = mcl_vars.mg_bedrock_nether_bottom_max - y -- Nether bedrock, bottom local ndiff2 = mcl_vars.mg_bedrock_nether_top_max - y -- Nether bedrock, ceiling local top if diff == 0 or ndiff1 == 0 or ndiff2 == 4 then -- 50% bedrock chance top = 2 elseif diff == 1 or ndiff1 == 1 or ndiff2 == 3 then -- 66.666...% top = 3 elseif diff == 2 or ndiff1 == 2 or ndiff2 == 2 then -- 75% top = 4 elseif diff == 3 or ndiff1 == 3 or ndiff2 == 1 then -- 90% top = 10 elseif diff == 4 or ndiff1 == 4 or ndiff2 == 0 then -- 100% return true else -- Not in bedrock layer return false end return math.random(1, top) <= top-1 end else bedrock_check = nil end lvm_used = set_layers(c_bedrock, bedrock_check, mcl_vars.mg_bedrock_overworld_min, mcl_vars.mg_bedrock_overworld_max, minp, maxp, lvm_used) lvm_used = set_layers(c_bedrock, bedrock_check, mcl_vars.mg_bedrock_nether_bottom_min, mcl_vars.mg_bedrock_nether_bottom_max, minp, maxp, lvm_used) lvm_used = set_layers(c_bedrock, bedrock_check, mcl_vars.mg_bedrock_nether_top_min, mcl_vars.mg_bedrock_nether_top_max, minp, maxp, lvm_used) -- Flat Nether if mg_name == "flat" then lvm_used = set_layers(c_air, nil, mcl_vars.mg_bedrock_nether_bottom_max + 4, mcl_vars.mg_bedrock_nether_bottom_max + 52, minp, maxp, lvm_used) end -- Big lava seas by replacing air below a certain height if mcl_vars.mg_lava then lvm_used = set_layers(c_lava, c_air, mcl_vars.mg_overworld_min, mcl_vars.mg_lava_overworld_max, minp, maxp, lvm_used) lvm_used = set_layers(c_nether_lava, c_air, mcl_vars.mg_nether_min, mcl_vars.mg_lava_nether_max, minp, maxp, lvm_used) end ----- Interactive block fixing section ----- ----- The section to perform basic block overrides of the core mapgen generated world. ----- -- Snow and sand fixes. This code implements snow consistency -- and fixes floating sand. -- A snowy grass block must be below a top snow or snow block at all times. if minp.y <= mcl_vars.mg_overworld_max and maxp.y >= mcl_vars.mg_overworld_min then -- v6 mapgen: -- Put top snow on snowy grass blocks. The mapgen does not generate the top snow on its own. if mg_name == "v6" then local snowdirt = minetest.find_nodes_in_area_under_air(minp, maxp, "mcl_core:dirt_with_grass_snow") for n = 1, #snowdirt do -- CHECKME: What happens at chunk borders? local p_pos = area:index(snowdirt[n].x, snowdirt[n].y + 1, snowdirt[n].z) if p_pos then data[p_pos] = c_top_snow end end if #snowdirt > 1 then lvm_used = true end -- Non-v6 mapgens: -- Clear snowy grass blocks without snow above to ensure consistency. -- Solidify floating sand to sandstone (both colors). else --local nodes = minetest.find_nodes_in_area(minp, maxp, {"mcl_core:dirt_with_grass_snow"}) local nodes = minetest.find_nodes_in_area(minp, maxp, {"mcl_core:dirt_with_grass_snow", "mcl_core:sand", "mcl_core:redsand"}) for n=1, #nodes do local p_pos = area:index(nodes[n].x, nodes[n].y, nodes[n].z) local p_pos_above = area:index(nodes[n].x, nodes[n].y+1, nodes[n].z) local p_pos_below = area:index(nodes[n].x, nodes[n].y-1, nodes[n].z) if data[p_pos] == c_dirt_with_grass_snow and p_pos_above and data[p_pos_above] ~= c_top_snow and data[p_pos_above] ~= c_snow_block then data[p_pos] = c_dirt_with_grass lvm_used = true elseif p_pos_below and data[p_pos_below] == c_air or data[p_pos_below] == c_water then if data[p_pos] == c_sand then data[p_pos] = c_sandstone lvm_used = true elseif data[p_pos] == c_redsand then -- Note: This is the only place in which red sandstone is generatd data[p_pos] = c_redsandstone lvm_used = true end end end end -- Nether block fixes: -- * Replace water with Nether lava. -- * Replace stone, sand dirt in v6 so the Nether works in v6. elseif minp.y <= mcl_vars.mg_nether_max and maxp.y >= mcl_vars.mg_nether_min then local nodes if mg_name == "v6" then nodes = minetest.find_nodes_in_area(minp, maxp, {"mcl_core:water_source", "mcl_core:stone", "mcl_core:sand", "mcl_core:dirt"}) else nodes = minetest.find_nodes_in_area(minp, maxp, {"mcl_core:water_source"}) end for n=1, #nodes do local p_pos = area:index(nodes[n].x, nodes[n].y, nodes[n].z) if data[p_pos] == c_water then data[p_pos] = c_nether_lava lvm_used = true elseif data[p_pos] == c_stone then data[p_pos] = c_netherrack lvm_used = true elseif data[p_pos] == c_sand or data[p_pos] == c_dirt then data[p_pos] = c_soul_sand lvm_used = true end end -- End block fixes: -- * Replace water with end stone or air (depending on height). -- * Remove stone, sand, dirt in v6 so our End map generator works in v6. elseif minp.y <= mcl_vars.mg_end_max and maxp.y >= mcl_vars.mg_end_min then if mg_name == "v6" then nodes = minetest.find_nodes_in_area(minp, maxp, {"mcl_core:water_source", "mcl_core:stone", "mcl_core:sand", "mcl_core:dirt"}) else nodes = minetest.find_nodes_in_area(minp, maxp, {"mcl_core:water_source"}) end for n=1, #nodes do local y = nodes[n].y local p_pos = area:index(nodes[n].x, y, nodes[n].z) if data[p_pos] == c_water then if y <= mcl_vars.mg_end_min + 104 and y >= mcl_vars.mg_end_min + 40 then data[p_pos] = c_end_stone lvm_used = true else data[p_pos] = c_air lvm_used = true end elseif data[p_pos] == c_stone or data[p_pos] == c_dirt or data[p_pos] == c_sand then data[p_pos] = c_air lvm_used = true end end end -- Final hackery: Set sun light level in the End. -- -26912 is at a mapchunk border. local shadow if minp.y >= -26912 and maxp.y <= mcl_vars.mg_end_max then vm:set_lighting({day=15, night=15}) lvm_used = true end if minp.y >= mcl_vars.mg_end_min and maxp.y <= -26911 then shadow = false lvm_used = true end -- Write stuff if lvm_used then vm:set_data(data) vm:calc_lighting(nil, nil, shadow) vm:update_liquids() vm:write_to_map() end local biomemap = minetest.get_mapgen_object("biomemap") -- Generate special decorations generate_clay(minp, maxp, seed) generate_underground_mushrooms(minp, maxp, seed) generate_tree_decorations(minp, maxp, seed, biomemap) generate_nether_decorations(minp, maxp, seed) generate_structures(minp, maxp, seed, biomemap) end)