mcl_mapgen_core = {} mcl_mapgen_core.registered_generators = {} local lvm, nodes, param2 = 0, 0, 0 local generating = {} -- generating chunks local chunks = {} -- intervals of chunks generated local function add_chunk(pos) local n = mcl_vars.get_chunk_number(pos) -- unsigned int local prev for i, d in pairs(chunks) do if n <= d[2] then -- we've found it if (n == d[2]) or (n >= d[1]) then return end -- already here if n == d[1]-1 then -- right before: if prev and (prev[2] == n-1) then prev[2] = d[2] table.remove(chunks, i) return end d[1] = n return end if prev and (prev[2] == n-1) then --join to previous prev[2] = n return end table.insert(chunks, i, {n, n}) -- insert new interval before i return end prev = d end chunks[#chunks+1] = {n, n} end function mcl_mapgen_core.is_generated(pos) local n = mcl_vars.get_chunk_number(pos) -- unsigned int for i, d in pairs(chunks) do if n <= d[2] then return (n >= d[1]) end end return false end -- -- 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") if minetest.get_modpath("mclx_core") then minetest.register_alias("mapgen_river_water_source", "mclx_core:river_water_source") else minetest.register_alias("mapgen_river_water_source", "mcl_core:water_source") end 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 superflat = mg_name == "flat" and minetest.get_mapgen_setting("mcl_superflat_classic") == "true" local WITCH_HUT_HEIGHT = 3 -- Exact Y level to spawn witch huts at. This height refers to the height of the floor -- End exit portal position. This is temporary. -- TODO: Remove the exit portal generation when the ender dragon has been implemented. local END_EXIT_PORTAL_POS = table.copy(mcl_vars.mg_end_platform_pos) END_EXIT_PORTAL_POS.x = END_EXIT_PORTAL_POS.x - 30 END_EXIT_PORTAL_POS.z = END_EXIT_PORTAL_POS.z - 3 END_EXIT_PORTAL_POS.y = END_EXIT_PORTAL_POS.y - 3 -- Content IDs local c_bedrock = minetest.get_content_id("mcl_core:bedrock") local c_obsidian = minetest.get_content_id("mcl_core:obsidian") 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_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_clay = minetest.get_content_id("mcl_core:clay") local c_leaves = minetest.get_content_id("mcl_core:leaves") local c_jungleleaves = minetest.get_content_id("mcl_core:jungleleaves") local c_jungletree = minetest.get_content_id("mcl_core:jungletree") local c_cocoa_1 = minetest.get_content_id("mcl_cocoas:cocoa_1") local c_cocoa_2 = minetest.get_content_id("mcl_cocoas:cocoa_2") local c_cocoa_3 = minetest.get_content_id("mcl_cocoas:cocoa_3") local c_vine = minetest.get_content_id("mcl_core:vine") local c_air = minetest.CONTENT_AIR -- -- 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, noise_params = { offset = 0, scale = 1, spread = {x=250, y=250, z=250}, seed = 12345, octaves = 3, persist = 0.6, lacunarity = 2, flags = "defaults", } }) 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, noise_params = { offset = 0, scale = 1, spread = {x=250, y=250, z=250}, seed = 12345, octaves = 3, persist = 0.6, lacunarity = 2, flags = "defaults", } }) 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, noise_params = { offset = 0, scale = 1, spread = {x=250, y=250, z=250}, seed = 12345, octaves = 3, persist = 0.6, lacunarity = 2, flags = "defaults", } }) -- 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_worlds.layer_to_y(111), noise_params = { offset = 0, scale = 1, spread = {x=250, y=250, z=250}, seed = 12345, octaves = 3, persist = 0.6, lacunarity = 2, flags = "defaults", } }) if minetest.settings:get_bool("mcl_generate_ores", true) then -- -- 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_worlds.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_worlds.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_worlds.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_worlds.layer_to_y(51), y_max = mcl_worlds.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_worlds.layer_to_y(51), y_max = mcl_worlds.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_worlds.layer_to_y(51), y_max = mcl_worlds.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_worlds.layer_to_y(81), y_max = mcl_worlds.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_worlds.layer_to_y(81), y_max = mcl_worlds.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_worlds.layer_to_y(81), y_max = mcl_worlds.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_worlds.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_worlds.layer_to_y(40), y_max = mcl_worlds.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_worlds.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_worlds.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_worlds.layer_to_y(31), y_max = mcl_worlds.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_worlds.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_worlds.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_worlds.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_worlds.layer_to_y(13), y_max = mcl_worlds.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_worlds.layer_to_y(13), y_max = mcl_worlds.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_worlds.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_worlds.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_worlds.layer_to_y(13), y_max = mcl_worlds.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_worlds.layer_to_y(13), y_max = mcl_worlds.layer_to_y(15), }) -- -- Emerald -- if mg_name == "v6" then -- Generate everywhere in v6, but rarely. -- 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_worlds.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_worlds.layer_to_y(30), y_max = mcl_worlds.layer_to_y(32), }) end -- -- 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_worlds.layer_to_y(14), y_max = mcl_worlds.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_worlds.layer_to_y(10), y_max = mcl_worlds.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_worlds.layer_to_y(6), y_max = mcl_worlds.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_worlds.layer_to_y(2), y_max = mcl_worlds.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_worlds.layer_to_y(0), y_max = mcl_worlds.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_worlds.layer_to_y(17), y_max = mcl_worlds.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_worlds.layer_to_y(21), y_max = mcl_worlds.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_worlds.layer_to_y(25), y_max = mcl_worlds.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_worlds.layer_to_y(29), y_max = mcl_worlds.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_worlds.layer_to_y(31), y_max = mcl_worlds.layer_to_y(32), }) end if not superflat 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_worlds.layer_to_y(5), y_max = mcl_worlds.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_worlds.layer_to_y(1), y_max = mcl_worlds.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_worlds.layer_to_y(11), y_max = mcl_worlds.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_worlds.layer_to_y(32), y_max = mcl_worlds.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_worlds.layer_to_y(48), y_max = mcl_worlds.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_worlds.layer_to_y(62), y_max = mcl_worlds.layer_to_y(127), }) end 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", "group:grass_block_no_snow", "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 = 465, 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, }, }, }, place_on = {"group:grass_block_no_snow"}, sidelen = 8, noise_params = { offset = -0.0025, scale = 0.03, spread = {x = 100, y = 100, z = 100}, seed = 420, octaves = 3, persist = 0.0, }, 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, }, }, }, -- 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 = {"group:grass_block_no_snow"}, 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 = {"group:grass_block_no_snow"}, 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 = "simple", decoration = "mcl_farming:pumpkin_face", param2 = 0, param2_max = 3, place_on = {"group:grass_block_no_snow"}, 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, }) -- Melon minetest.register_decoration({ deco_type = "simple", place_on = {"group:grass_block_no_snow"}, sidelen = 16, noise_params = { offset = 0.002, 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", }) -- Tall grass minetest.register_decoration({ deco_type = "simple", place_on = {"group:grass_block_no_snow"}, sidelen = 8, noise_params = { offset = 0.01, scale = 0.3, spread = {x = 100, y = 100, z = 100}, seed = 420, octaves = 3, persist = 0.6 }, y_min = 1, y_max = mcl_vars.overworld_max, decoration = "mcl_flowers:tallgrass", }) minetest.register_decoration({ deco_type = "simple", place_on = {"group:grass_block_no_snow"}, sidelen = 8, noise_params = { offset = 0.04, scale = 0.03, spread = {x = 100, y = 100, z = 100}, seed = 420, octaves = 3, persist = 0.6 }, y_min = 1, y_max = mcl_vars.overworld_max, decoration = "mcl_flowers:tallgrass", }) -- Seagrass and kelp local materials = {"dirt","sand"} for i=1, #materials do local mat = materials[i] minetest.register_decoration({ deco_type = "simple", spawn_by = {"group:water"}, num_spawn_by = 1, place_on = {"mcl_core:"..mat}, sidelen = 8, noise_params = { offset = 0.04, scale = 0.3, spread = {x = 100, y = 100, z = 100}, seed = 421, octaves = 3, persist = 0.6 }, flags = "force_placement", place_offset_y = -1, y_min = mcl_vars.overworld_min, y_max = 0, decoration = "mcl_ocean:seagrass_"..mat, }) minetest.register_decoration({ deco_type = "simple", spawn_by = {"group:water"}, num_spawn_by = 1, place_on = {"mcl_core:mat"}, sidelen = 8, noise_params = { offset = 0.08, scale = 0.03, spread = {x = 100, y = 100, z = 100}, seed = 421, octaves = 3, persist = 0.6 }, flags = "force_placement", place_offset_y = -1, y_min = mcl_vars.overworld_min, y_max = -5, decoration = "mcl_ocean:seagrass_"..mat, }) minetest.register_decoration({ deco_type = "simple", spawn_by = {"group:water"}, num_spawn_by = 1, place_on = {"mcl_core:"..mat}, sidelen = 16, noise_params = { offset = 0.01, scale = 0.01, spread = {x = 300, y = 300, z = 300}, seed = 505, octaves = 5, persist = 0.62, }, flags = "force_placement", place_offset_y = -1, y_min = mcl_vars.overworld_min, y_max = -6, decoration = "mcl_ocean:kelp_"..mat, param2 = 16, param2_max = 96, }) minetest.register_decoration({ deco_type = "simple", spawn_by = {"group:water"}, num_spawn_by = 1, place_on = {"mcl_core:"..mat}, sidelen = 16, noise_params = { offset = 0.01, scale = 0.01, spread = {x = 100, y = 100, z = 100}, seed = 506, octaves = 5, persist = 0.62, }, flags = "force_placement", place_offset_y = -1, y_min = mcl_vars.overworld_min, y_max = -15, decoration = "mcl_ocean:kelp_"..mat, param2 = 32, param2_max = 160, }) end -- Wet Sponge -- TODO: Remove this when we got ocean monuments minetest.register_decoration({ deco_type = "simple", decoration = "mcl_sponges:sponge_wet", spawn_by = {"group:water"}, num_spawn_by = 1, place_on = {"mcl_core:dirt","mcl_core:sand"}, sidelen = 16, noise_params = { offset = 0.00295, scale = 0.006, spread = {x = 250, y = 250, z = 250}, seed = 999, octaves = 3, persist = 0.666 }, flags = "force_placement", y_min = mcl_vars.mg_lava_overworld_max + 5, y_max = -20, }) -- 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 = {"group:grass_block_no_snow"}, sidelen = 8, fill_ratio = 0.004, 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 = {"group:grass_block_no_snow", "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 = {"group:grass_block_no_snow"}, 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_worlds.layer_to_y(67)) register_mgv6_flower("oxeye_daisy", 3490) register_mgv6_flower("poppy", 9439) -- Put top snow on snowy grass blocks. The v6 mapgen does not generate the top snow on its own. minetest.register_decoration({ deco_type = "simple", place_on = {"group:grass_block_snow"}, sidelen = 16, fill_ratio = 11.0, -- complete coverage y_min = 1, y_max = mcl_vars.mg_overworld_max, decoration = "mcl_core:snow", }) end local mg_flags = minetest.settings:get_flags("mg_flags") -- Inform other mods of dungeon setting for MCL2-style dungeons mcl_vars.mg_dungeons = mg_flags.dungeons and not superflat -- Disable builtin dungeons, we provide our own dungeons mg_flags.dungeons = false -- Apply mapgen-specific mapgen code if mg_name == "v6" then register_mgv6_decorations() elseif superflat then -- Enforce superflat-like mapgen: no caves, decor, lakes and hills mg_flags.caves = false mg_flags.decorations = false minetest.set_mapgen_setting("mgflat_spflags", "nolakes,nohills", true) end local mg_flags_str = "" for k,v in pairs(mg_flags) do if v == false then k = "no" .. k end mg_flags_str = mg_flags_str .. k .. "," end if string.len(mg_flags_str) > 0 then mg_flags_str = string.sub(mg_flags_str, 1, string.len(mg_flags_str)-1) end minetest.set_mapgen_setting("mg_flags", mg_flags_str, true) -- 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 local perlin_clay local function generate_clay(minp, maxp, blockseed, voxelmanip_data, voxelmanip_area, lvm_used) -- TODO: Make clay generation reproducible for same seed. if maxp.y < -5 or minp.y > 0 then return lvm_used end local pr = PseudoRandom(blockseed) perlin_clay = perlin_clay or minetest.get_perlin({ offset = 0.5, scale = 0.2, spread = {x = 5, y = 5, z = 5}, seed = -316, octaves = 1, persist = 0.0 }) for y=math.max(minp.y, 0), math.min(maxp.y, -8), -1 do -- Assume X and Z lengths are equal local divlen = 4 local divs = (maxp.x-minp.x)/divlen+1; for divx=0+1,divs-2 do for divz=0+1,divs-2 do -- Get position and shift it a bit randomly so the clay do not obviously appear in a grid local cx = minp.x + math.floor((divx+0.5)*divlen) + pr:next(-1,1) local cz = minp.z + math.floor((divz+0.5)*divlen) + pr:next(-1,1) local water_pos = voxelmanip_area:index(cx, y+1, cz) local waternode = voxelmanip_data[water_pos] local surface_pos = voxelmanip_area:index(cx, y, cz) local surfacenode = voxelmanip_data[surface_pos] local genrnd = pr:next(1, 20) if genrnd == 1 and perlin_clay:get_3d({x=cx,y=y,z=cz}) > 0 and waternode == c_water and (surfacenode == c_dirt or minetest.get_item_group(minetest.get_name_from_content_id(surfacenode), "sand") == 1) then local diamondsize = pr:next(1, 3) for x1 = -diamondsize, diamondsize do for z1 = -(diamondsize - math.abs(x1)), diamondsize - math.abs(x1) do local ccpos = voxelmanip_area:index(cx+x1, y, cz+z1) local claycandidate = voxelmanip_data[ccpos] if voxelmanip_data[ccpos] == c_dirt or minetest.get_item_group(minetest.get_name_from_content_id(claycandidate), "sand") == 1 then voxelmanip_data[ccpos] = c_clay lvm_used = true end end end end end end end return lvm_used end -- TODO: Try to use more efficient structure generating code local function generate_structures(minp, maxp, blockseed, biomemap) local chunk_has_desert_well = false local chunk_has_desert_temple = false local chunk_has_igloo = false local struct_min, struct_max = -3, 111 --64 if maxp.y >= struct_min and minp.y <= struct_max then -- Generate structures local pr = PcgRandom(blockseed) perlin_structures = perlin_structures or minetest.get_perlin(329, 3, 0.6, 100) -- Assume X and Z lengths are equal local divlen = 5 for x0 = minp.x, maxp.x, divlen do for z0 = minp.z, maxp.z, divlen do -- Determine amount from perlin noise local amount = math.floor(perlin_structures:get_2d({x=x0, y=z0}) * 9) -- Find random positions based on this random local p, ground_y for i=0, amount do p = {x = pr:next(x0, x0+divlen-1), y = 0, z = pr:next(z0, z0+divlen-1)} -- Find ground level ground_y = nil local nn for y = struct_max, struct_min, -1 do p.y = y local checknode = minetest.get_node(p) if checknode then nn = checknode.name local def = minetest.registered_nodes[nn] if def and def.walkable then ground_y = y break end end end if ground_y then p.y = ground_y+1 local nn0 = minetest.get_node(p).name -- Check if the node can be replaced if minetest.registered_nodes[nn0] and minetest.registered_nodes[nn0].buildable_to then -- 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 pr:next(1,12000) == 1 then mcl_structures.call_struct(p, "desert_temple", nil, pr) 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 pr:next(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", nil, pr) 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 (minetest.get_item_group(nn, "grass_block_snow") == 1)) then if pr:next(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", nil, pr) 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 pr:next(1, fossil_prob) == 1 then -- Spawn fossil below desert surface between layers 40 and 49 local p1 = {x=p.x, y=pr:next(mcl_worlds.layer_to_y(40), mcl_worlds.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", nil, pr) end end end -- Witch hut 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 local swampland = minetest.get_biome_id("Swampland") local swampland_shore = minetest.get_biome_id("Swampland_shore") -- Where do witches live? local here_be_witches = false if mg_name == "v6" then -- v6: In Normal biome if biomeinfo.get_v6_biome(p) == "Normal" then here_be_witches = true end else -- Other mapgens: In swampland biome 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 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} local size 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, pr) -- 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 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 = pr:next(1,58000) 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"}) -- 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", nil, pr) 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", nil, pr) end end end end end end end end -- End exit portal elseif minp.y <= END_EXIT_PORTAL_POS.y and maxp.y >= END_EXIT_PORTAL_POS.y and minp.x <= END_EXIT_PORTAL_POS.x and maxp.x >= END_EXIT_PORTAL_POS.x and minp.z <= END_EXIT_PORTAL_POS.z and maxp.z >= END_EXIT_PORTAL_POS.z then for y=maxp.y, minp.y, -1 do local p = {x=END_EXIT_PORTAL_POS.x, y=y, z=END_EXIT_PORTAL_POS.z} if minetest.get_node(p).name == "mcl_end:end_stone" then mcl_structures.call_struct(p, "end_exit_portal") return end end mcl_structures.call_struct(END_EXIT_PORTAL_POS, "end_exit_portal") end end -- Buffers for LuaVoxelManip -- local lvm_buffer = {} -- local lvm_buffer_param2 = {} -- 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, data, param2_data, area, biomemap, lvm_used, pr) if maxp.y < 0 then return lvm_used 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_m = minetest.get_biome_id("JungleM") local jungle_m_shore = minetest.get_biome_id("JungleM_shore") local jungle_edge = minetest.get_biome_id("JungleEdge") local jungle_edge_shore = minetest.get_biome_id("JungleEdge_shore") local jungle_edge_m = minetest.get_biome_id("JungleEdgeM") local jungle_edge_m_shore = minetest.get_biome_id("JungleEdgeM_shore") -- Modifier for Jungle M biome: More vines and cocoas local dense_vegetation = false 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 end if not jungle_biome_found and (id == jungle or id == jungle_shore or id == jungle_m or id == jungle_m_shore or id == jungle_edge or id == jungle_edge_shore or id == jungle_edge_m or id == jungle_edge_m_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 not dense_vegetation and (id == jungle_m or id == jungle_m_shore) then dense_vegetation = true end if swamp_biome_found and jungle_biome_found and dense_vegetation 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 local cocoachance = 40 if dense_vegetation then cocoachance = 32 end -- Pass 1: Generate cocoas at jungle trees for n = 1, #jungletree do pos = table.copy(jungletree[n]) treepos = table.copy(pos) if minetest.find_node_near(pos, 1, {"mcl_core:jungleleaves"}) then dir = pr:next(1, cocoachance) 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 p_pos = area:index(pos.x, pos.y, pos.z) local l = minetest.get_node_light(pos) if dir < 5 and data[p_pos] == c_air and l ~= nil and l > 12 then local c = pr:next(1, 3) if c == 1 then data[p_pos] = c_cocoa_1 elseif c == 2 then data[p_pos] = c_cocoa_2 else data[p_pos] = c_cocoa_3 end param2_data[p_pos] = minetest.dir_to_facedir(vector.subtract(treepos, pos)) lvm_used = true 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) -- Extra long vines in Jungle M local maxvinelength = 7 if dense_vegetation then maxvinelength = 14 end 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 p_pos = area:index(pos.x, pos.y, pos.z) local vine_threshold = math.max(0.33333, perlin_vines_density:get_2d(pos)) if dense_vegetation then vine_threshold = vine_threshold * (2/3) end if perlin_vines:get_2d(pos) > -1.0 and perlin_vines_fine:get_3d(pos) > vine_threshold and data[p_pos] == c_air then local rdir = {} rdir.x = -dirs[d].x rdir.y = dirs[d].y rdir.z = -dirs[d].z local param2 = minetest.dir_to_wallmounted(rdir) -- 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:get_3d(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:get_3d(pos)) * 4) for l=0, length-1 do local t_pos = area:index(treepos.x, treepos.y, treepos.z) if (data[p_pos] == c_air or data[p_pos] == c_jungleleaves or data[p_pos] == c_leaves) and mcl_core.supports_vines(minetest.get_name_from_content_id(data[t_pos])) then data[p_pos] = c_vine param2_data[p_pos] = param2 lvm_used = true else break end pos.y = pos.y + 1 p_pos = area:index(pos.x, pos.y, pos.z) treepos.y = treepos.y + 1 end else -- Grow vines down, length between 1 and maxvinelength local length = math.ceil(math.abs(perlin_vines_length:get_3d(pos)) * maxvinelength) for l=0, length-1 do if data[p_pos] == c_air then data[p_pos] = c_vine param2_data[p_pos] = param2 lvm_used = true else break end pos.y = pos.y - 1 p_pos = area:index(pos.x, pos.y, pos.z) end end end end end end return lvm_used end -- Generate mushrooms in caves manually. -- Minetest's API does not support decorations in caves yet. :-( local generate_underground_mushrooms = function(minp, maxp, seed) local pr_shroom = PseudoRandom(seed-24359) -- 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 } local l = minetest.get_node_light(bpos, 0.5) if bpos.y >= min and bpos.y <= max and l ~= nil and l <= 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 nether_wart_chance if mg_name == "v6" then nether_wart_chance = 85 else nether_wart_chance = 170 end -- 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) local pr_nether = PseudoRandom(seed+667) if minp.y > mcl_vars.mg_nether_max or maxp.y < mcl_vars.mg_nether_min then return end minetest.log("action", "[mcl_mapgen_core] Nether decorations " .. minetest.pos_to_string(minp) .. " ... " .. minetest.pos_to_string(maxp)) -- 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) local l = minetest.get_node_light(bpos, 0.5) if bpos.y > mcl_vars.mg_lava_nether_max + 6 and l ~= nil and l <= 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, nether_wart_chance) == 1 then minetest.set_node(bpos, {name = "mcl_nether:nether_wart"}) end end) end minetest.register_on_generated(function(minp, maxp, blockseed) minetest.log("action", "[mcl_mapgen_core] Generating chunk " .. minetest.pos_to_string(minp) .. " ... " .. minetest.pos_to_string(maxp)) add_chunk(minp) local p1, p2 = {x=minp.x, y=minp.y, z=minp.z}, {x=maxp.x, y=maxp.y, z=maxp.z} if lvm > 0 then local lvm_used, shadow = false, false local lb = {} -- buffer local lb2 = {} -- param2 local vm, emin, emax = minetest.get_mapgen_object("voxelmanip") local e1, e2 = {x=emin.x, y=emin.y, z=emin.z}, {x=emax.x, y=emax.y, z=emax.z} local data2 local data = vm:get_data(lb) if param2 > 0 then data2 = vm:get_param2_data(lb2) end local area = VoxelArea:new({MinEdge=e1, MaxEdge=e2}) for _, rec in pairs(mcl_mapgen_core.registered_generators) do if rec.vf then local lvm_used0, shadow0 = rec.vf(vm, data, data2, p1, p2, area, p1, p2, blockseed) if lvm_used0 then lvm_used = true end if shadow0 then shadow = true end end end if lvm_used then -- Write stuff vm:set_data(data) if param2 > 0 then vm:set_param2_data(data2) end vm:calc_lighting(p1, p2, shadow) vm:write_to_map() vm:update_liquids() end end if nodes > 0 then for _, rec in pairs(mcl_mapgen_core.registered_generators) do if rec.nf then rec.nf(p1, p2, blockseed) end end end -- add_chunk(minp) end) minetest.register_on_generated=function(node_function) mcl_mapgen_core.register_generator("mod_"..tostring(#mcl_mapgen_core.registered_generators+1), nil, node_function) end function mcl_mapgen_core.register_generator(id, lvm_function, node_function, priority, needs_param2) if not id then return end local priority = priority or 5000 if lvm_function then lvm = lvm + 1 end if lvm_function then nodes = nodes + 1 end if needs_param2 then param2 = param2 + 1 end local new_record = { i = priority, vf = lvm_function, nf = node_function, needs_param2 = needs_param2, } mcl_mapgen_core.registered_generators[id] = new_record table.sort( mcl_mapgen_core.registered_generators, function(a, b) return (a.i < b.i) or ((a.i == b.i) and (a.vf ~= nil) and (b.vf == nil)) end) end function mcl_mapgen_core.unregister_generator(id) if not mcl_mapgen_core.registered_generators[id] then return end local rec = mcl_mapgen_core.registered_generators[id] mcl_mapgen_core.registered_generators[id] = nil if rec.vf then lvm = lvm - 1 end if rev.nf then nodes = nodes - 1 end if rec.needs_param2 then param2 = param2 - 1 end if rec.needs_level0 then level0 = level0 - 1 end end -- Generate basic layer-based nodes: void, bedrock, realm barrier, lava seas, etc. -- Also perform some basic node replacements. local bedrock_check if mcl_vars.mg_bedrock_is_rough then bedrock_check = function(pos, _, pr) 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 pr:next(1, top) <= top-1 end end -- 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(data, area, content_id, check, min, max, minp, maxp, lvm_used, pr) 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], pr) 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 -- Below the bedrock, generate air/void local function basic(vm, data, data2, emin, emax, area, minp, maxp, blockseed) local biomemap, ymin, ymax local lvm_used = false local pr = PseudoRandom(blockseed) -- The Void below the Nether: lvm_used = set_layers(data, area, c_void , nil, mcl_vars.mapgen_edge_min , mcl_vars.mg_nether_min -1, minp, maxp, lvm_used, pr) -- [[ THE NETHER: mcl_vars.mg_nether_min mcl_vars.mg_nether_max ]] -- The Air on the Nether roof, https://git.minetest.land/MineClone2/MineClone2/issues/1186 lvm_used = set_layers(data, area, c_air , nil, mcl_vars.mg_nether_max +1, mcl_vars.mg_nether_max + 128 , minp, maxp, lvm_used, pr) -- The Void above the Nether below the End: lvm_used = set_layers(data, area, c_void , nil, mcl_vars.mg_nether_max + 128 +1, mcl_vars.mg_end_min -1, minp, maxp, lvm_used, pr) -- [[ THE END: mcl_vars.mg_end_min mcl_vars.mg_end_max ]] -- The Void above the End below the Realm barrier: lvm_used = set_layers(data, area, c_void , nil, mcl_vars.mg_end_max +1, mcl_vars.mg_realm_barrier_overworld_end_min-1, minp, maxp, lvm_used, pr) -- Realm barrier between the Overworld void and the End lvm_used = set_layers(data, area, c_realm_barrier, nil, mcl_vars.mg_realm_barrier_overworld_end_min , mcl_vars.mg_realm_barrier_overworld_end_max , minp, maxp, lvm_used, pr) -- The Void above Realm barrier below the Overworld: lvm_used = set_layers(data, area, c_void , nil, mcl_vars.mg_realm_barrier_overworld_end_max+1, mcl_vars.mg_overworld_min -1, minp, maxp, lvm_used, pr) if mg_name ~= "singlenode" then -- Bedrock lvm_used = set_layers(data, area, c_bedrock, bedrock_check, mcl_vars.mg_bedrock_overworld_min, mcl_vars.mg_bedrock_overworld_max, minp, maxp, lvm_used, pr) lvm_used = set_layers(data, area, c_bedrock, bedrock_check, mcl_vars.mg_bedrock_nether_bottom_min, mcl_vars.mg_bedrock_nether_bottom_max, minp, maxp, lvm_used, pr) lvm_used = set_layers(data, area, c_bedrock, bedrock_check, mcl_vars.mg_bedrock_nether_top_min, mcl_vars.mg_bedrock_nether_top_max, minp, maxp, lvm_used, pr) -- Flat Nether if mg_name == "flat" then lvm_used = set_layers(data, area, c_air, nil, mcl_vars.mg_flat_nether_floor, mcl_vars.mg_flat_nether_ceiling, minp, maxp, lvm_used, pr) end -- Big lava seas by replacing air below a certain height if mcl_vars.mg_lava then lvm_used = set_layers(data, area, c_lava, c_air, mcl_vars.mg_overworld_min, mcl_vars.mg_lava_overworld_max, minp, maxp, lvm_used, pr) lvm_used = set_layers(data, area, c_nether_lava, c_air, mcl_vars.mg_nether_min, mcl_vars.mg_lava_nether_max, minp, maxp, lvm_used, pr) end -- Clay, vines, cocoas lvm_used = generate_clay(minp, maxp, blockseed, data, area, lvm_used) biomemap = minetest.get_mapgen_object("biomemap") lvm_used = generate_tree_decorations(minp, maxp, blockseed, data, data2, area, biomemap, lvm_used, pr) ----- 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 and cut plants. -- 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: if mg_name == "v6" then --[[ Remove broken double plants caused by v6 weirdness. v6 might break the bottom part of double plants because of how it works. There are 3 possibilities: 1) Jungle: Top part is placed on top of a jungle tree or fern (=v6 jungle grass). This is because the schematic might be placed even if some nodes of it could not be placed because the destination was already occupied. TODO: A better fix for this would be if schematics could abort placement altogether if ANY of their nodes could not be placed. 2) Cavegen: Removes the bottom part, the upper part floats 3) Mudflow: Same as 2) ]] local plants = minetest.find_nodes_in_area(minp, maxp, "group:double_plant") for n = 1, #plants do local node = vm:get_node_at(plants[n]) local is_top = minetest.get_item_group(node.name, "double_plant") == 2 if is_top then local p_pos = area:index(plants[n].x, plants[n].y-1, plants[n].z) if p_pos then node = vm:get_node_at({x=plants[n].x, y=plants[n].y-1, z=plants[n].z}) local is_bottom = minetest.get_item_group(node.name, "double_plant") == 1 if not is_bottom then p_pos = area:index(plants[n].x, plants[n].y, plants[n].z) data[p_pos] = c_air lvm_used = true end end end end -- Non-v6 mapgens: else -- Set param2 (=color) of grass blocks. -- Clear snowy grass blocks without snow above to ensure consistency. local nodes = minetest.find_nodes_in_area(minp, maxp, {"mcl_core:dirt_with_grass", "mcl_core:dirt_with_grass_snow"}) -- Flat area at y=0 to read biome 3 times faster than 5.3.0.get_biome_data(pos).biome: 43us vs 125us per iteration: local aream = VoxelArea:new({MinEdge={x=minp.x, y=0, z=minp.z}, MaxEdge={x=maxp.x, y=0, z=maxp.z}}) for n=1, #nodes do local n = nodes[n] local p_pos = area:index(n.x, n.y, n.z) local p_pos_above = area:index(n.x, n.y+1, n.z) local p_pos_below = area:index(n.x, n.y-1, n.z) local b_pos = aream:index(n.x, 0, n.z) local bn = minetest.get_biome_name(biomemap[b_pos]) if bn then local biome = minetest.registered_biomes[bn] if biome and biome._mcl_biome_type then data2[p_pos] = biome._mcl_palette_index lvm_used = true end end 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 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 if mg_name == "v6" then local nodes = minetest.find_nodes_in_area(minp, maxp, {"mcl_core:water_source", "mcl_core:stone", "mcl_core:sand", "mcl_core:dirt"}) 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 else minetest.emerge_area(minp, maxp, function(blockpos, action, calls_remaining, param) if calls_remaining > 0 then return end -- local nodes = minetest.find_nodes_in_area(param.minp, param.maxp, {"mcl_core:water_source"}) local nodes = minetest.find_nodes_in_area(param.minp, param.maxp, {"group:water"}) local sn=(mcl_observers and mcl_observers.swap_node) or minetest.swap_node local l = {name="mcl_nether:nether_lava_source"} for _, n in pairs(nodes) do sn(n, l) end end, {minp=vector.new(minp), maxp=vector.new(maxp)}) 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. -- * Generate spawn platform (End portal destination) elseif minp.y <= mcl_vars.mg_end_max and maxp.y >= mcl_vars.mg_end_min then local nodes, node 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 if #nodes > 0 then lvm_used = true for n=1, #nodes do node = nodes[n] data[area:index(node.x, node.y, node.z)] = c_air end end -- Obsidian spawn platform if minp.y <= mcl_vars.mg_end_platform_pos.y and maxp.y >= mcl_vars.mg_end_platform_pos.y and minp.x <= mcl_vars.mg_end_platform_pos.x and maxp.x >= mcl_vars.mg_end_platform_pos.z and minp.z <= mcl_vars.mg_end_platform_pos.z and maxp.z >= mcl_vars.mg_end_platform_pos.z then local pos1 = {x = math.max(minp.x, mcl_vars.mg_end_platform_pos.x-2), y = math.max(minp.y, mcl_vars.mg_end_platform_pos.y), z = math.max(minp.z, mcl_vars.mg_end_platform_pos.z-2)} local pos2 = {x = math.min(maxp.x, mcl_vars.mg_end_platform_pos.x+2), y = math.min(maxp.y, mcl_vars.mg_end_platform_pos.y+2), z = math.min(maxp.z, mcl_vars.mg_end_platform_pos.z+2)} for x=math.max(minp.x, mcl_vars.mg_end_platform_pos.x-2), math.min(maxp.x, mcl_vars.mg_end_platform_pos.x+2) do for z=math.max(minp.z, mcl_vars.mg_end_platform_pos.z-2), math.min(maxp.z, mcl_vars.mg_end_platform_pos.z+2) do for y=math.max(minp.y, mcl_vars.mg_end_platform_pos.y), math.min(maxp.y, mcl_vars.mg_end_platform_pos.y+2) do local p_pos = area:index(x, y, z) if y == mcl_vars.mg_end_platform_pos.y then data[p_pos] = c_obsidian else data[p_pos] = c_air end end end end lvm_used = true end end end -- Final hackery: Set sun light level in the End. -- -26912 is at a mapchunk border. local shadow = true 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 if mg_name ~= "singlenode" then -- Generate special decorations generate_underground_mushrooms(minp, maxp, blockseed) generate_nether_decorations(minp, maxp, blockseed) generate_structures(minp, maxp, blockseed, biomemap) end return lvm_used, shadow end mcl_mapgen_core.register_generator("main", basic, nil, 1, true) -- "Trivial" (actually NOT) function to just read the node and some stuff to not just return "ignore", like 5.3.0 does. -- p: Position, if it's wrong, {name="error"} node will return. -- force: optional (default: false) - Do the maximum to still read the node within us_timeout. -- us_timeout: optional (default: 244 = 0.000244 s = 1/80/80/80), set it at least to 3000000 to let mapgen to finish its job. -- -- returns node definition, eg. {name="air"}. Unfortunately still can return {name="ignore"}. function mcl_mapgen_core.get_node(p, force, us_timeout) -- check initial circumstances if not p or not p.x or not p.y or not p.z then return {name="error"} end -- try common way local node = minetest.get_node(p) if node.name ~= "ignore" then return node end -- copy table to get sure it won't changed by other threads local pos = {x=p.x,y=p.y,z=p.z} -- try LVM minetest.get_voxel_manip():read_from_map(pos, pos) node = minetest.get_node(pos) if node.name ~= "ignore" or not force then return node end -- all ways failed - need to emerge (or forceload if generated) local us_timeout = us_timeout or 244 if mcl_mapgen_core.is_generated(pos) then minetest.forceload_block(pos) else minetest.emerge_area(pos, pos) end local t = minetest.get_us_time() node = minetest.get_node(pos) while (not node or node.name == "ignore") and (minetest.get_us_time() - t < us_timeout) do node = minetest.get_node(pos) end return node -- it still can return "ignore", LOL, even if force = true, but only after time out end