Minetest/VoxeLibre
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VoxeLibre/mods/MAPGEN/mcl_mapgen_core/init.lua
FaceDeer e1bf4081dd since registered_generators was a table, not an array, table.sort was having no effect and so priority was being ignored. Generators were being run in an arbitrary order. 
I discovered this when I attempted to register an lvm in a mod that was intended to run after "main", to modify clay that the main mapgen lvm adds to the world. It wasn't finding any clay because priority was being ignored and it was running before "main" was.
2022-08-28 22:11:02 -06:00

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mcl_mapgen_core = {}
local registered_generators = {}
local lvm, nodes, param2 = 0, 0, 0
local lvm_buffer = {}
--
-- 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
local END_EXIT_PORTAL_POS = vector.new(-3, -27003, -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_reeds = minetest.get_content_id("mcl_core:reeds")
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),
})
--
-- Ancient debris
--
local ancient_debris_wherein = {"mcl_nether:netherrack","mcl_blackstone:blackstone","mcl_blackstone:basalt"}
-- Common spawn
minetest.register_ore({
ore_type = "scatter",
ore = "mcl_nether:ancient_debris",
wherein = ancient_debris_wherein,
clust_scarcity = 25000, -- 0.004% chance
clust_num_ores = 3,
clust_size = 3,
y_min = mcl_vars.mg_nether_min + 8,
y_max = mcl_vars.mg_nether_min + 22,
})
-- Rare spawn (below)
minetest.register_ore({
ore_type = "scatter",
ore = "mcl_nether:ancient_debris",
wherein = ancient_debris_wherein,
clust_scarcity = 32000,
clust_num_ores = 2,
clust_size = 3,
y_min = mcl_vars.mg_nether_min,
y_max = mcl_vars.mg_nether_min + 8,
})
-- Rare spawn (above)
minetest.register_ore({
ore_type = "scatter",
ore = "mcl_nether:ancient_debris",
wherein = ancient_debris_wherein,
clust_scarcity = 32000,
clust_num_ores = 2,
clust_size = 3,
y_min = mcl_vars.mg_nether_min + 22,
y_max = mcl_vars.mg_nether_min + 119,
})
--
-- 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 function register_large_flower(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",
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 function biomemap_to_xz(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 function xz_to_biomemap_index(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
local function generate_end_exit_portal(pos)
local obj = minetest.add_entity(vector.add(pos, vector.new(3, 11, 3)), "mobs_mc:enderdragon")
if obj then
local dragon_entity = obj:get_luaentity()
dragon_entity._initial = true
dragon_entity._portal_pos = pos
else
minetest.log("error", "[mcl_mapgen_core] ERROR! Ender dragon doesn't want to spawn")
end
mcl_structures.call_struct(pos, "end_exit_portal")
end
-- TODO: Try to use more efficient structure generating code
local function generate_structures(minp, maxp, blockseed, biomemap)
local chunk_has_igloo = false
local struct_min, struct_max = -3, 111 --64
--except end exit portall all v6
if mg_name == "v6" and 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
-- Igloos
if 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 (v6)
if ground_y <= 0 and nn == "mcl_core:dirt" then
local prob = minecraft_chunk_probability(48, minp, maxp)
if pr:next(1, prob) == 1 then
local swampland = minetest.get_biome_id("Swampland")
local swampland_shore = minetest.get_biome_id("Swampland_shore")
-- Where do witches live?
-- v6: In Normal biome
if biomeinfo.get_v6_biome(p) == "Normal" then
here_be_witches = true
end
local here_be_witches = false
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.place_structure(place,mcl_structures.registered_structures["witch_hut"],pr)
local function place_tree_if_free(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 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.place_structure(p,mcl_structures.registered_structures["ice_spike_large"],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.place_structure(p,mcl_structures.registered_structures["ice_spike_small"],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
generate_end_exit_portal(p)
return
end
end
generate_end_exit_portal(END_EXIT_PORTAL_POS)
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 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.
-- only v6. minetest supports cave decos via "all_floors" flag now
local function generate_underground_mushrooms(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 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
-- Generate Nether decorations manually: Eternal fire, mushrooms, nether wart
-- (only v6)
local nether_wart_chance = 85
local function generate_nether_decorations(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 function special_deco(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 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))
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 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(lvm_buffer)
if param2 > 0 then
data2 = vm:get_param2_data(lb2)
end
local area = VoxelArea:new({MinEdge=e1, MaxEdge=e2})
for _, rec in ipairs(registered_generators) do
if rec.vf then
local lvm_used0, shadow0 = rec.vf(vm, data, data2, e1, e2, 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 ipairs(registered_generators) do
if rec.nf then
rec.nf(p1, p2, blockseed)
end
end
end
mcl_vars.add_chunk(minp)
end)
function minetest.register_on_generated(node_function)
mcl_mapgen_core.register_generator("mod_"..minetest.get_current_modname().."_"..tostring(#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 node_function then nodes = nodes + 1 end
if needs_param2 then param2 = param2 + 1 end
local new_record = {
id = id,
i = priority,
vf = lvm_function,
nf = node_function,
needs_param2 = needs_param2,
}
table.insert(registered_generators, new_record)
table.sort(registered_generators, function(a, b)
return (a.i < b.i) or ((a.i == b.i) and a.vf and (b.vf == nil))
end)
end
function mcl_mapgen_core.unregister_generator(id)
local index
for i, gen in ipairs(registered_generators) do
if gen.id == id then
index = i
break
end
end
if not index then return end
local rec = registered_generators[index]
table.remove(registered_generators, index)
if rec.vf then lvm = lvm - 1 end
if rec.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
function bedrock_check(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
-- Set param2 (=color) of sugar cane
nodes = minetest.find_nodes_in_area(minp, maxp, {"mcl_core:reeds"})
for n=1, #nodes do
local n = nodes[n]
local p_pos = area:index(n.x, n.y, 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
end
end
-- Nether block fixes:
-- * Replace water with Nether lava.
-- * Replace stone, sand dirt in v6 so the Nether works in v6.
elseif emin.y <= mcl_vars.mg_nether_max and emax.y >= mcl_vars.mg_nether_min then
if mg_name == "v6" then
local nodes = minetest.find_nodes_in_area(emin, emax, {"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
local nodes = minetest.find_nodes_in_area(emin, emax, {"group:water"})
for _, n in pairs(nodes) do
data[area:index(n.x, n.y, n.z)] = c_nether_lava
end
end
-- End block fixes:
-- * Replace water with end stone or air (depending on height).
-- * Remove stone, sand, dirt in v6 so our End map generator works in v6.
-- * 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
if mg_name == "v6" then
nodes = minetest.find_nodes_in_area(emin, emax, {"mcl_core:water_source", "mcl_core:stone", "mcl_core:sand", "mcl_core:dirt"})
else
nodes = minetest.find_nodes_in_area(emin, emax, {"mcl_core:water_source"})
end
if #nodes > 0 then
lvm_used = true
for _,n in pairs(nodes) do
data[area:index(n.x, n.y, n.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
return lvm_used, shadow
end
local function basic_node(minp, maxp, blockseed)
if mg_name ~= "singlenode" then
-- Generate special decorations
if mg_name == "v6" then
generate_underground_mushrooms(minp, maxp, blockseed)
generate_nether_decorations(minp, maxp, blockseed)
end
generate_structures(minp, maxp, blockseed, minetest.get_mapgen_object("biomemap"))
end
end
mcl_mapgen_core.register_generator("main", basic, basic_node, 1, true)
mcl_mapgen_core.register_generator("structures",nil, function(minp, maxp, blockseed)
local gennotify = minetest.get_mapgen_object("gennotify")
local has_struct = {}
local poshash = minetest.hash_node_position(minp)
for _,struct in pairs(mcl_structures.registered_structures) do
if struct.deco_id then
local pr = PseudoRandom(blockseed + 42)
local has = false
if has_struct[struct.name] == nil then has_struct[struct.name] = {} end
for _, pos in pairs(gennotify["decoration#"..struct.deco_id] or {}) do
local realpos = vector.offset(pos,0,1,0)
minetest.remove_node(realpos)
if struct.chunk_probability == nil or (not has and pr:next(1,struct.chunk_probability) == 1 ) then
mcl_structures.place_structure(realpos,struct,pr,blockseed)
has=true
end
end
end
end
end, 100, true)
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