pyutest-cd2025/mods/pyutest_core/mapgen.lua

minetest.register_alias("mapgen_stone", "pyutest_core:stone_block")
minetest.register_alias("mapgen_water_source", "pyutest_core:water_source")
minetest.register_alias("mapgen_river_water_source", "pyutest_core:water_source")
minetest.register_alias("mapgen_lava_source", "pyutest_core:water_source")
minetest.register_alias("mapgen_singlenode", "air")

-- Biomes

-- these values are yoinked from VoxeLibre
-- (https://git.minetest.land/VoxeLibre/VoxeLibre/src/branch/master/mods/MAPGEN/mcl_biomes/init.lua)
PyuTestCore_OceanMin = -15
PyuTestCore_DeepOceanMax = PyuTestCore_OceanMin - 1
PyuTestCore_DeepOceanMin = -31


PyuTestCore_SurfaceBottom = 2
PyuTestCore_WorldBottom = -31000

PyuTestCore_BiomeTops = {
  grassland = 40,
  forest = 45,
  desert = 70,
  frozen_plains = 50,
  mountains = 300,
  mushroom_fields = 40,
  volcano = 70,
  oillands = 45,
  ice_spikes = 250
}

-- wrapper around minetest.register_biome but with defaults.
PyuTestCore.register_biome = function(opts)
  local nopts = PyuTestCore.util.tablecopy(opts) or {}
  nopts["depth_top"] = nopts["depth_top"] or 1
  nopts["depth_filler"] = nopts["depth_filler"] or 3
  nopts["depth_riverbed"] = nopts["depth_riverbed"] or 2
  nopts["depth_water_top"] = nopts["depth_water_top"] or nil -- cant think of a sane default..

  nopts["node_river_water"] = nopts["node_river_water"] or "pyutest_core:water_source"
  nopts["node_riverbed"] = nopts["node_riverbed"] or "pyutest_core:gravel_block"

  minetest.register_biome(nopts)
end

PyuTestCore.register_ocean = function(name, heat_point, top_node, water_node, ground_node)
  PyuTestCore.register_biome({
    name = name.."_ocean",
    node_water = water_node or "pyutest_core:water_source",
    node_river_water = water_node or "pyutest_core:water_source",
    node_riverbed = ground_node or "pyutest_core:gravel_block",
    node_top = ground_node or "pyutest_core:gravel_block",
    depth_top = 3,
    node_water_top = top_node or nil,
    depth_water_top = 5,
    y_max = 0,
    y_min = PyuTestCore_OceanMin,
    heat_point = heat_point or 50,
    humidity_point = 100
  })

  PyuTestCore.register_biome({
    name = name.."_deep_ocean",
    node_water = water_node or "pyutest_core:water_source",
    node_river_water = water_node or "pyutest_core:water_source",
    node_riverbed = ground_node or "pyutest_core:gravel_block",
    node_top = ground_node or "pyutest_core:gravel_block",
    depth_top = 3,
    node_water_top = top_node or nil,
    depth_water_top = 5,
    y_max = PyuTestCore_DeepOceanMax,
    y_min = PyuTestCore_DeepOceanMin,
    heat_point = heat_point or 30,
    humidity_point = 100
  })
end

PyuTestCore.register_biome({
  name = "beach",

  node_top = "pyutest_core:sand_block",
  node_filler = nil,

  y_max = PyuTestCore_SurfaceBottom,
  y_min = PyuTestCore_SurfaceBottom - 1,

  heat_point = 40,
  humidity_point = 40
})

PyuTestCore.register_biome({
  name = "snowy_beach",

  node_dust = "pyutest_core:snow_carpet",

  node_top = "pyutest_core:sand_block",
  node_filler = nil,

  y_max = PyuTestCore_SurfaceBottom,
  y_min = PyuTestCore_SurfaceBottom - 3,

  heat_point = 9,
  humidity_point = 40
})

PyuTestCore.register_biome({
  name = "grassland",

  node_top = "pyutest_core:grass_block",
  node_filler = "pyutest_core:dirt_block",

  y_max = PyuTestCore_BiomeTops.grassland,
  y_min = PyuTestCore_SurfaceBottom,

  heat_point = 53,
  humidity_point = 38,
})

PyuTestCore.register_biome({
  name = "forest",

  node_top = "pyutest_core:dark_grass_block",
  node_filler = "pyutest_core:dirt_block",

  y_max = PyuTestCore_BiomeTops.forest,
  y_min = PyuTestCore_SurfaceBottom,

  heat_point = 50,
  humidity_point = 63
})

PyuTestCore.register_biome({
  name = "stony_mountains",

  node_top = "pyutest_core:stone_block",
  node_filler = "pyutest_core:stone_block",

  y_max = PyuTestCore_BiomeTops.mountains,
  y_min = PyuTestCore_BiomeTops.grassland,

  heat_point = 45,
  humidity_point = 34
})

PyuTestCore.register_biome({
  name = "desert",

  node_top = "pyutest_core:sand_block",
  node_filler = "pyutest_core:sandstone_block",

  y_max = PyuTestCore_BiomeTops.desert,
  y_min = PyuTestCore_SurfaceBottom,

  heat_point = 78,
  humidity_point = 4
})

PyuTestCore.register_biome({
  name = "desert_mountains",

  node_top = "pyutest_core:sand_block",
  node_filler = "pyutest_core:sandstone_block",

  y_max = PyuTestCore_BiomeTops.mountains,
  y_min = PyuTestCore_BiomeTops.desert,

  heat_point = 65,
  humidity_point = 8
})

PyuTestCore.register_biome({
  name = "snowy_mountains",

  node_top = "pyutest_core:snow_block",
  node_filler = "pyutest_core:snow_block",

  y_max = PyuTestCore_BiomeTops.mountains,
  y_min = PyuTestCore_BiomeTops.frozen_plains,

  heat_point = 6,
  humidity_point = 23
})

PyuTestCore.register_biome({
  name = "frozen_plains",

  node_dust = "pyutest_core:snow_carpet",

  node_top = "pyutest_core:snow_block",
  node_filler = "pyutest_core:snow_block",

  node_water_top = "pyutest_core:ice_block",
  depth_water_top = 10,

  y_max = PyuTestCore_BiomeTops.frozen_plains,
  y_min = PyuTestCore_SurfaceBottom,

  heat_point = 9,
  humidity_point = 32
})

PyuTestCore.register_biome({
  name = "wasteland",

  node_top = "pyutest_core:dirt_block",
  node_filler = "pyutest_core:dirt_block",

  node_water_top = "pyutest_core:ice_block",
  depth_water_top = 10,

  y_max = PyuTestCore_BiomeTops.frozen_plains,
  y_min = PyuTestCore_SurfaceBottom,
  heat_point = 9,
  humidity_point = 9
})

PyuTestCore.register_biome({
  name = "mushroom_fields",
  node_top = "pyutest_core:mycelium_block",
  node_filler = "pyutest_core:dirt_block",

  y_max = PyuTestCore_BiomeTops.mushroom_fields,
  y_min = PyuTestCore_SurfaceBottom,

  heat_point = 34,
  humidity_point = 76
})

PyuTestCore.register_biome({
  name = "volcano",

  node_top = "pyutest_core:molten_rock_block",
  node_filler = "pyutest_core:basalt_block",
  depth_filler = 9,

  node_water = "pyutest_core:lava_source",
  node_river_water = "pyutest_core:lava_source",

  y_max = PyuTestCore_BiomeTops.volcano,
  y_min = PyuTestCore_SurfaceBottom,

  heat_point = 98,
  humidity_point = 3
})

PyuTestCore.register_biome({
  name = "ice_spikes",

  node_top = "pyutest_core:ice_block",
  node_filler = "pyutest_core:ice_block",

  node_water_top = "pyutest_core:ice_block",
  depth_water_top = 10,

  y_max = PyuTestCore_BiomeTops.ice_spikes,
  y_min = PyuTestCore_SurfaceBottom,
  heat_point = 9,
  humidity_point = 28
})

PyuTestCore.register_biome({
  name = "grassy_hills",
  node_top = "pyutest_core:dark_grass_block",
  node_filler = "pyutest_core:dirt_block",
  depth_filler = 4,

  y_max = PyuTestCore_BiomeTops.mountains,
  y_min = PyuTestCore_BiomeTops.grassland,

  heat_point = 36,
  humidity_point = 54
})

PyuTestCore.register_biome({
  name = "old_growth_forest",

  node_top = "pyutest_core:dark_grass_block",
  node_filler = "pyutest_core:dirt_block",

  y_max = PyuTestCore_BiomeTops.forest,
  y_min = PyuTestCore_SurfaceBottom,

  heat_point = 38,
  humidity_point = 66
})

PyuTestCore.register_biome({
  name = "snowy_forest",

  node_top = "pyutest_core:snow_block",
  node_filler = "pyutest_core:dirt_block",

  y_max = PyuTestCore_BiomeTops.forest,
  y_min = PyuTestCore_SurfaceBottom,

  heat_point = 8,
  humidity_point = 28
})

PyuTestCore.register_biome({
  name = "savanna",

  node_top = "pyutest_core:savanna_grass_block",
  node_filler = "pyutest_core:dirt_block",

  y_max = PyuTestCore_BiomeTops.grassland,
  y_min = PyuTestCore_SurfaceBottom,

  heat_point = 58,
  humidity_point = 38
})

PyuTestCore.register_biome({
  name = "taiga",

  node_top = "pyutest_core:dark_grass_block",
  node_filler = "pyutest_core:dirt_block",

  y_max = PyuTestCore_BiomeTops.forest,
  y_min = PyuTestCore_SurfaceBottom,

  heat_point = 28,
  humidity_point = 53
})

PyuTestCore.register_biome({
  name = "birch_forest",

  node_top = "pyutest_core:grass_block",
  node_filler = "pyutest_core:dirt_block",

  y_max = PyuTestCore_BiomeTops.forest,
  y_min = PyuTestCore_SurfaceBottom,

  heat_point = 38,
  humidity_point = 63
})

PyuTestCore.register_biome({
  name = "cherry_grove",

  node_top = "pyutest_core:grass_block",
  node_filler = "pyutest_core:dirt_block",

  y_max = PyuTestCore_BiomeTops.forest,
  y_min = PyuTestCore_SurfaceBottom,

  heat_point = 36,
  humidity_point = 64
})

PyuTestCore.register_ocean("normal")

PyuTestCore.BIOMES = {}
for k, _ in pairs(minetest.registered_biomes) do
  table.insert(PyuTestCore.BIOMES, k)
end

-- Structures
dofile(PyuTestCore_Path.."/structures.lua")

-- Trees, Plants and More
dofile(PyuTestCore_Path.."/trees.lua")