-- -- Aliases for map generator outputs -- mcl_mapgen_core = {} 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", "stairs:stair_cobble") minetest.register_alias("mapgen_sandstonebrick", "mcl_core:sandstonesmooth") minetest.register_alias("mapgen_stair_sandstonebrick", "stairs:stair_sandstone") -- -- 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), }) -- 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), }) local function register_mgv6_decorations() -- Sugar canes minetest.register_decoration({ deco_type = "simple", place_on = {"mcl_core:dirt_with_grass"}, 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 = 1, decoration = "mcl_core:reeds", height = 2, height_max = 4, spawn_by = "mcl_core:water_source", num_spawn_by = 1, }) -- 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 = 30, decoration = "mcl_core:cactus", height = 1, height_max = 3, }) -- 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 = 8, noise_params = { offset = -0.01, scale = 0.03, spread = {x = 500, y = 500, z = 500}, seed = 420, octaves = 2, persist = 0.6, }, y_min = 1, y_max = 40, flags = "", }) -- 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" }, -- 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:dirt_with_grass"}, 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 = 30, flags = "", }) -- 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 = 30, 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) -- 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 = 50, 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 = 50, 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, scale = 0.04, spread = {x = 100, y = 100, z = 100}, seed = mseeds[m], octaves = 3, persist = 0.6 }, y_min = 1, y_max = 128, decoration = mushrooms[m], spawn_by = { "mcl_core:tree", "mcl_core:sprucetree", "mcl_core:darktree", "mcl_core:birchtree", "mcl_core:jungletree", "mcl_core:acaciatree" }, num_spawn_by = 1, }) end -- Dead bushes minetest.register_decoration({ deco_type = "simple", place_on = {"group:sand", "mcl_core:podzol", "mcl_core:coarse_dirt", "mcl_colorblocks: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 = 50, decoration = "mcl_core:deadbush", }) local function register_mgv6_flower(name, seed, offset) if offset == nil then offset = 0 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 = 30, 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 and blue orchid are made slightly rarer in v6 to compensate for missing biomes. In Minecraft, those flowers only appear in special biomes. ]] register_mgv6_flower("allium", 0, -0.001) register_mgv6_flower("blue_orchid", 64500, -0.001) register_mgv6_flower("oxeye_daisy", 3490) register_mgv6_flower("poppy", 9439) -- 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", param1=255, }, }, }, 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 = 3, y_max = 29, rotation = "random", }) -- Melon minetest.register_decoration({ deco_type = "simple", place_on = {"mcl_core:dirt_with_grass"}, sidelen = 16, noise_params = { offset = 0.003, scale = 0.006, spread = {x = 250, y = 250, z = 250}, seed = 333, octaves = 3, persist = 0.6 }, -- Small trick to make sure melon spawn in jungles spawn_by = { "mcl_core:jungletree", "mcl_flowers:fern" }, num_spawn_by = 1, y_min = 1, y_max = 40, decoration = "mcl_farming:melon", }) end -- Apply mapgen-specific mapgen code local mg_name = minetest.get_mapgen_setting("mg_name") if mg_name == "v6" then register_mgv6_decorations() end if mg_name == "flat" then minetest.set_mapgen_setting("mg_flags", "nocaves,nodungeons,nodecorations,light", true) else minetest.set_mapgen_setting("mg_flags", "caves,nodungeons,decorations,light", true) end -- Perlin noise objects local perlin -- Generate clay and structures -- TODO: Try to use more efficient structure generating code minetest.register_on_generated(function(minp, maxp, seed) local chunk_has_desert_well = false local chunk_has_desert_temple = false local chunk_has_igloo = false 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_node({x=cx,y=0,z=cz}).name == "mcl_core:sand" 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_node({x=cx+x1,y=0,z=cz+z1}).name == "mcl_core:sand" or minetest.get_node({x=cx+x1,y=0,z=cz+z1}).name == "mcl_core:sandstone" then minetest.set_node({x=cx+x1,y=0,z=cz+z1}, {name="mcl_core:clay"}) end end end end end end end end if maxp.y >= 3 and minp.y <= 64 then -- Generate desert temples perlin = perlin 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: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=64,3,-1 do if minetest.get_node({x=x,y=y,z=z}).name ~= "air" 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 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 then -- Minecraft probability: 1/1000 per Minecraft chunk (16×16). -- We adjust the probability to Minetest's MapBlock size. local desert_well_prob = 1000 * (((maxp.x-minp.x+1)*(maxp.z-minp.z+1)) / 256) -- 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 elseif not chunk_has_igloo and nn == "mcl_core:snowblock" then if math.random(1, 4400) == 1 then -- Check surface local surface = minetest.find_nodes_in_area({x=p.x,y=p.y-1,z=p.z}, {x=p.x+9, y=p.y-1, z=p.z+9}, "mcl_core:snowblock") if #surface >= 63 then mcl_structures.call_struct(p, "igloo") chunk_has_igloo = true end end end end end end end end end end) -- Generate bedrock layer or layers local BEDROCK_MIN = mcl_vars.mg_bedrock_overworld_min local BEDROCK_MAX = mcl_vars.mg_bedrock_overworld_max local GEN_MAX = mcl_vars.mg_lava_overworld_max or BEDROCK_MAX -- Buffer for LuaVoxelManip local lvm_buffer = {} -- Below the bedrock, generate air/void minetest.register_on_generated(function(minp, maxp) 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 -- Generate bedrock and lava layers if minp.y <= GEN_MAX then local c_bedrock = minetest.get_content_id("mcl_core:bedrock") local c_void = minetest.get_content_id("mcl_core:void") local c_lava = minetest.get_content_id("mcl_core:lava_source") local c_air = minetest.get_content_id("air") local max_y = math.min(maxp.y, GEN_MAX) for y = minp.y, max_y do for x = minp.x, maxp.x do for z = minp.z, maxp.z do local p_pos = area:index(x, y, z) local setdata = nil if mcl_vars.mg_bedrock_is_rough then -- 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. if y == BEDROCK_MAX then -- 50% bedrock chance if math.random(1,2) == 1 then setdata = c_bedrock end elseif y == BEDROCK_MAX -1 then -- 66.666...% if math.random(1,3) <= 2 then setdata = c_bedrock end elseif y == BEDROCK_MAX -2 then -- 75% if math.random(1,4) <= 3 then setdata = c_bedrock end elseif y == BEDROCK_MAX -3 then -- 90% if math.random(1,10) <= 9 then setdata = c_bedrock end elseif y == BEDROCK_MAX -4 then -- 100% setdata = c_bedrock elseif y < BEDROCK_MIN then setdata = c_void end else -- Perfectly flat bedrock layer(s) if y >= BEDROCK_MIN and y <= BEDROCK_MAX then setdata = c_bedrock elseif y < BEDROCK_MIN then setdata = c_void end end if setdata then data[p_pos] = setdata lvm_used = true elseif mcl_vars.mg_lava and y <= mcl_vars.mg_lava_overworld_max then if data[p_pos] == c_air then data[p_pos] = c_lava end lvm_used = true end end end end end -- Put top snow on grassy snow blocks created by the v6 mapgen -- This is because the snowy grass block must only be used when it is below snow or top snow if mg_name == "v6" then local c_top_snow = minetest.get_content_id("mcl_core:snow") 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 end if lvm_used then vm:set_data(data) vm:calc_lighting() vm:update_liquids() vm:write_to_map() end -- Generate rare underground mushrooms -- TODO: Make them appear in groups, use Perlin noise if minp.y > 0 or maxp.y < -32 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 math.random(1,1000) < 4 and minetest.get_node_light(bpos, 0.5) <= 12 then if math.random(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)