minetest/minetest_game
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minetest_game/mods/default/mapgen.lua

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--
-- Aliases for map generator outputs
--
minetest.register_alias("mapgen_stone", "default:stone")
minetest.register_alias("mapgen_dirt", "default:dirt")
minetest.register_alias("mapgen_dirt_with_grass", "default:dirt_with_grass")
minetest.register_alias("mapgen_sand", "default:sand")
minetest.register_alias("mapgen_water_source", "default:water_source")
minetest.register_alias("mapgen_river_water_source", "default:river_water_source")
minetest.register_alias("mapgen_lava_source", "default:lava_source")
minetest.register_alias("mapgen_gravel", "default:gravel")
minetest.register_alias("mapgen_desert_stone", "default:desert_stone")
minetest.register_alias("mapgen_desert_sand", "default:desert_sand")
minetest.register_alias("mapgen_dirt_with_snow", "default:dirt_with_snow")
minetest.register_alias("mapgen_snowblock", "default:snowblock")
minetest.register_alias("mapgen_snow", "default:snow")
minetest.register_alias("mapgen_ice", "default:ice")
minetest.register_alias("mapgen_sandstone", "default:sandstone")
-- Flora
minetest.register_alias("mapgen_tree", "default:tree")
minetest.register_alias("mapgen_leaves", "default:leaves")
minetest.register_alias("mapgen_apple", "default:apple")
minetest.register_alias("mapgen_jungletree", "default:jungletree")
minetest.register_alias("mapgen_jungleleaves", "default:jungleleaves")
minetest.register_alias("mapgen_junglegrass", "default:junglegrass")
minetest.register_alias("mapgen_pine_tree", "default:pine_tree")
minetest.register_alias("mapgen_pine_needles", "default:pine_needles")
-- Dungeons
minetest.register_alias("mapgen_cobble", "default:cobble")
minetest.register_alias("mapgen_stair_cobble", "stairs:stair_cobble")
minetest.register_alias("mapgen_mossycobble", "default:mossycobble")
minetest.register_alias("mapgen_sandstonebrick", "default:sandstonebrick")
minetest.register_alias("mapgen_stair_sandstonebrick", "stairs:stair_sandstonebrick")
--
-- Register ores
--
-- All mapgens except singlenode
-- Blob ore first to avoid other ores inside blobs
function default.register_ores()
-- Clay
minetest.register_ore({
ore_type = "blob",
ore = "default:clay",
wherein = {"default:sand"},
clust_scarcity = 16 * 16 * 16,
clust_size = 5,
y_min = -15,
y_max = 0,
noise_threshhold = 0.0,
noise_params = {
offset = 0.5,
scale = 0.2,
spread = {x = 5, y = 5, z = 5},
seed = -316,
octaves = 1,
persist = 0.0
},
})
-- Sand
minetest.register_ore({
ore_type = "blob",
ore = "default:sand",
wherein = {"default:stone"},
clust_scarcity = 16 * 16 * 16,
clust_size = 5,
y_min = -31,
y_max = 4,
noise_threshhold = 0.0,
noise_params = {
offset = 0.5,
scale = 0.2,
spread = {x = 5, y = 5, z = 5},
seed = 2316,
octaves = 1,
persist = 0.0
},
})
-- Dirt
minetest.register_ore({
ore_type = "blob",
ore = "default:dirt",
wherein = {"default:stone"},
clust_scarcity = 16 * 16 * 16,
clust_size = 5,
y_min = -31,
y_max = 31000,
noise_threshhold = 0.0,
noise_params = {
offset = 0.5,
scale = 0.2,
spread = {x = 5, y = 5, z = 5},
seed = 17676,
octaves = 1,
persist = 0.0
},
})
-- Gravel
minetest.register_ore({
ore_type = "blob",
ore = "default:gravel",
wherein = {"default:stone"},
clust_scarcity = 16 * 16 * 16,
clust_size = 5,
y_min = -31000,
y_max = 31000,
noise_threshhold = 0.0,
noise_params = {
offset = 0.5,
scale = 0.2,
spread = {x = 5, y = 5, z = 5},
seed = 766,
octaves = 1,
persist = 0.0
},
})
-- Coal
minetest.register_ore({
ore_type = "scatter",
ore = "default:stone_with_coal",
wherein = "default:stone",
clust_scarcity = 8 * 8 * 8,
clust_num_ores = 8,
clust_size = 3,
y_min = -31000,
y_max = 64,
})
minetest.register_ore({
ore_type = "scatter",
ore = "default:stone_with_coal",
wherein = "default:stone",
clust_scarcity = 24 * 24 * 24,
clust_num_ores = 27,
clust_size = 6,
y_min = -31000,
y_max = 0,
})
-- Iron
minetest.register_ore({
ore_type = "scatter",
ore = "default:stone_with_iron",
wherein = "default:stone",
clust_scarcity = 12 * 12 * 12,
clust_num_ores = 3,
clust_size = 2,
y_min = -15,
y_max = 2,
})
minetest.register_ore({
ore_type = "scatter",
ore = "default:stone_with_iron",
wherein = "default:stone",
clust_scarcity = 9 * 9 * 9,
clust_num_ores = 5,
clust_size = 3,
y_min = -63,
y_max = -16,
})
minetest.register_ore({
ore_type = "scatter",
ore = "default:stone_with_iron",
wherein = "default:stone",
clust_scarcity = 7 * 7 * 7,
clust_num_ores = 5,
clust_size = 3,
y_min = -31000,
y_max = -64,
})
minetest.register_ore({
ore_type = "scatter",
ore = "default:stone_with_iron",
wherein = "default:stone",
clust_scarcity = 24 * 24 * 24,
clust_num_ores = 27,
clust_size = 6,
y_min = -31000,
y_max = -64,
})
--Mese
minetest.register_ore({
ore_type = "scatter",
ore = "default:stone_with_mese",
wherein = "default:stone",
clust_scarcity = 18 * 18 * 18,
clust_num_ores = 3,
clust_size = 2,
y_min = -255,
y_max = -64,
})
minetest.register_ore({
ore_type = "scatter",
ore = "default:stone_with_mese",
wherein = "default:stone",
clust_scarcity = 14 * 14 * 14,
clust_num_ores = 5,
clust_size = 3,
y_min = -31000,
y_max = -256,
})
minetest.register_ore({
ore_type = "scatter",
ore = "default:mese",
wherein = "default:stone",
clust_scarcity = 36 * 36 * 36,
clust_num_ores = 3,
clust_size = 2,
y_min = -31000,
y_max = -1024,
})
-- Gold
minetest.register_ore({
ore_type = "scatter",
ore = "default:stone_with_gold",
wherein = "default:stone",
clust_scarcity = 15 * 15 * 15,
clust_num_ores = 3,
clust_size = 2,
y_min = -255,
y_max = -64,
})
minetest.register_ore({
ore_type = "scatter",
ore = "default:stone_with_gold",
wherein = "default:stone",
clust_scarcity = 13 * 13 * 13,
clust_num_ores = 5,
clust_size = 3,
y_min = -31000,
y_max = -256,
})
-- Diamond
minetest.register_ore({
ore_type = "scatter",
ore = "default:stone_with_diamond",
wherein = "default:stone",
clust_scarcity = 17 * 17 * 17,
clust_num_ores = 4,
clust_size = 3,
y_min = -255,
y_max = -128,
})
minetest.register_ore({
ore_type = "scatter",
ore = "default:stone_with_diamond",
wherein = "default:stone",
clust_scarcity = 15 * 15 * 15,
clust_num_ores = 4,
clust_size = 3,
y_min = -31000,
y_max = -256,
})
-- Copper
minetest.register_ore({
ore_type = "scatter",
ore = "default:stone_with_copper",
wherein = "default:stone",
clust_scarcity = 12 * 12 * 12,
clust_num_ores = 4,
clust_size = 3,
y_min = -63,
y_max = -16,
})
minetest.register_ore({
ore_type = "scatter",
ore = "default:stone_with_copper",
wherein = "default:stone",
clust_scarcity = 9 * 9 * 9,
clust_num_ores = 5,
clust_size = 3,
y_min = -31000,
y_max = -64,
})
end
--
-- Register biomes
--
-- All mapgens except mgv6 and singlenode
function default.register_biomes()
minetest.clear_registered_biomes()
-- Permanent ice
minetest.register_biome({
name = "glacier",
node_dust = "default:snowblock",
node_top = "default:snowblock",
depth_top = 1,
node_filler = "default:snowblock",
depth_filler = 3,
node_stone = "default:ice",
node_water_top = "default:ice",
depth_water_top = 10,
--node_water = "",
node_river_water = "default:ice",
y_min = -8,
y_max = 31000,
heat_point = -5,
humidity_point = 50,
})
minetest.register_biome({
name = "glacier_ocean",
node_dust = "default:snowblock",
node_top = "default:gravel",
depth_top = 1,
node_filler = "default:gravel",
depth_filler = 2,
--node_stone = "",
--node_water_top = "",
--depth_water_top = ,
--node_water = "",
--node_river_water = "",
y_min = -112,
y_max = -9,
heat_point = -5,
humidity_point = 50,
})
-- Cold
minetest.register_biome({
name = "tundra",
node_dust = "default:snow",
node_top = "default:dirt_with_snow",
depth_top = 1,
node_filler = "default:dirt",
depth_filler = 0,
--node_stone = "",
--node_water_top = "",
--depth_water_top = ,
--node_water = "",
--node_river_water = "",
y_min = 2,
y_max = 31000,
heat_point = 20,
humidity_point = 30,
})
minetest.register_biome({
name = "tundra_ocean",
--node_dust = "",
node_top = "default:sand",
depth_top = 1,
node_filler = "default:sand",
depth_filler = 2,
--node_stone = "",
--node_water_top = "",
--depth_water_top = ,
--node_water = "",
--node_river_water = "",
y_min = -112,
y_max = 1,
heat_point = 20,
humidity_point = 30,
})
minetest.register_biome({
name = "taiga",
node_dust = "default:snow",
node_top = "default:snowblock",
depth_top = 1,
node_filler = "default:dirt",
depth_filler = 2,
--node_stone = "",
--node_water_top = "",
--depth_water_top = ,
--node_water = "",
--node_river_water = "",
y_min = 2,
y_max = 31000,
heat_point = 20,
humidity_point = 70,
})
minetest.register_biome({
name = "taiga_ocean",
--node_dust = "",
node_top = "default:sand",
depth_top = 1,
node_filler = "default:sand",
depth_filler = 2,
--node_stone = "",
--node_water_top = "",
--depth_water_top = ,
--node_water = "",
--node_river_water = "",
y_min = -112,
y_max = 1,
heat_point = 20,
humidity_point = 70,
})
-- Cool
minetest.register_biome({
name = "stone_grassland",
--node_dust = "",
node_top = "default:dirt_with_grass",
depth_top = 1,
node_filler = "default:dirt",
depth_filler = 0,
--node_stone = "",
--node_water_top = "",
--depth_water_top = ,
--node_water = "",
--node_river_water = "",
y_min = 6,
y_max = 31000,
heat_point = 45,
humidity_point = 30,
})
minetest.register_biome({
name = "stone_grassland_ocean",
--node_dust = "",
node_top = "default:sand",
depth_top = 1,
node_filler = "default:sand",
depth_filler = 2,
--node_stone = "",
--node_water_top = "",
--depth_water_top = ,
--node_water = "",
--node_river_water = "",
y_min = -112,
y_max = 5,
heat_point = 45,
humidity_point = 30,
})
minetest.register_biome({
name = "coniferous_forest",
--node_dust = "",
node_top = "default:dirt_with_grass",
depth_top = 1,
node_filler = "default:dirt",
depth_filler = 2,
--node_stone = "",
--node_water_top = "",
--depth_water_top = ,
--node_water = "",
--node_river_water = "",
y_min = 6,
y_max = 31000,
heat_point = 45,
humidity_point = 70,
})
minetest.register_biome({
name = "coniferous_forest_ocean",
--node_dust = "",
node_top = "default:sand",
depth_top = 1,
node_filler = "default:sand",
depth_filler = 2,
--node_stone = "",
--node_water_top = "",
--depth_water_top = ,
--node_water = "",
--node_river_water = "",
y_min = -112,
y_max = 5,
heat_point = 45,
humidity_point = 70,
})
-- Warm
minetest.register_biome({
name = "sandstone_grassland",
--node_dust = "",
node_top = "default:dirt_with_grass",
depth_top = 1,
node_filler = "default:dirt",
depth_filler = 0,
node_stone = "default:sandstone",
--node_water_top = "",
--depth_water_top = ,
--node_water = "",
--node_river_water = "",
y_min = 6,
y_max = 31000,
heat_point = 70,
humidity_point = 30,
})
minetest.register_biome({
name = "sandstone_grassland_ocean",
--node_dust = "",
node_top = "default:sand",
depth_top = 1,
node_filler = "default:sand",
depth_filler = 2,
node_stone = "default:sandstone",
--node_water_top = "",
--depth_water_top = ,
--node_water = "",
--node_river_water = "",
y_min = -112,
y_max = 5,
heat_point = 70,
humidity_point = 30,
})
minetest.register_biome({
name = "deciduous_forest",
--node_dust = "",
node_top = "default:dirt_with_grass",
depth_top = 1,
node_filler = "default:dirt",
depth_filler = 2,
--node_stone = "",
--node_water_top = "",
--depth_water_top = ,
--node_water = "",
--node_river_water = "",
y_min = 6,
y_max = 31000,
heat_point = 70,
humidity_point = 70,
})
minetest.register_biome({
name = "deciduous_forest_ocean",
--node_dust = "",
node_top = "default:sand",
depth_top = 1,
node_filler = "default:sand",
depth_filler = 2,
--node_stone = "",
--node_water_top = "",
--depth_water_top = ,
--node_water = "",
--node_river_water = "",
y_min = -112,
y_max = 5,
heat_point = 70,
humidity_point = 70,
})
-- Hot
minetest.register_biome({
name = "desert",
--node_dust = "",
node_top = "default:desert_sand",
depth_top = 1,
node_filler = "default:desert_sand",
depth_filler = 1,
node_stone = "default:desert_stone",
--node_water_top = "",
--depth_water_top = ,
--node_water = "",
--node_river_water = "",
y_min = 5,
y_max = 31000,
heat_point = 95,
humidity_point = 10,
})
minetest.register_biome({
name = "desert_ocean",
--node_dust = "",
node_top = "default:sand",
depth_top = 1,
node_filler = "default:sand",
depth_filler = 2,
node_stone = "default:desert_stone",
--node_water_top = "",
--depth_water_top = ,
--node_water = "",
--node_river_water = "",
y_min = -112,
y_max = 4,
heat_point = 95,
humidity_point = 10,
})
minetest.register_biome({
name = "savanna",
--node_dust = "",
node_top = "default:dirt_with_dry_grass",
depth_top = 1,
node_filler = "default:dirt",
depth_filler = 1,
--node_stone = "",
--node_water_top = "",
--depth_water_top = ,
--node_water = "",
--node_river_water = "",
y_min = 5,
y_max = 31000,
heat_point = 95,
humidity_point = 50,
})
minetest.register_biome({
name = "savanna_ocean",
--node_dust = "",
node_top = "default:sand",
depth_top = 1,
node_filler = "default:sand",
depth_filler = 2,
--node_stone = "",
--node_water_top = "",
--depth_water_top = ,
--node_water = "",
--node_river_water = "",
y_min = -112,
y_max = 4,
heat_point = 95,
humidity_point = 50,
})
minetest.register_biome({
name = "rainforest",
--node_dust = "",
node_top = "default:dirt_with_grass",
depth_top = 1,
node_filler = "default:dirt",
depth_filler = 2,
--node_stone = "",
--node_water_top = "",
--depth_water_top = ,
--node_water = "",
--node_river_water = "",
y_min = 1,
y_max = 31000,
heat_point = 95,
humidity_point = 90,
})
minetest.register_biome({
name = "rainforest_swamp",
--node_dust = "",
node_top = "default:dirt",
depth_top = 1,
node_filler = "default:dirt",
depth_filler = 2,
--node_stone = "",
--node_water_top = "",
--depth_water_top = ,
--node_water = "",
--node_river_water = "",
y_min = 0,
y_max = 0,
heat_point = 95,
humidity_point = 90,
})
minetest.register_biome({
name = "rainforest_ocean",
--node_dust = "",
node_top = "default:sand",
depth_top = 1,
node_filler = "default:sand",
depth_filler = 2,
--node_stone = "",
--node_water_top = "",
--depth_water_top = ,
--node_water = "",
--node_river_water = "",
y_min = -112,
y_max = -1,
heat_point = 95,
humidity_point = 90,
})
-- Underground
minetest.register_biome({
name = "underground",
--node_dust = "",
--node_top = "",
depth_top = 0,
--node_filler = "",
depth_filler = -4,
--node_stone = "",
--node_water_top = "",
--depth_water_top = ,
--node_water = "",
--node_river_water = "",
y_min = -31000,
y_max = -113,
heat_point = 50,
humidity_point = 50,
})
end
--
-- Register decorations
--
-- Mgv6
function default.register_mgv6_decorations()
minetest.clear_registered_decorations()
-- Papyrus
minetest.register_decoration({
deco_type = "simple",
place_on = {"default:dirt_with_grass"},
sidelen = 8,
noise_params = {
offset = -0.3,
scale = 0.7,
spread = {x = 100, y = 100, z = 100},
seed = 354,
octaves = 3,
persist = 0.7
},
y_min = 1,
y_max = 1,
decoration = "default:papyrus",
height = 2,
height_max = 4,
spawn_by = "default:water_source",
num_spawn_by = 1,
})
-- Cacti
minetest.register_decoration({
deco_type = "simple",
place_on = {"default:desert_sand"},
sidelen = 16,
noise_params = {
offset = -0.012,
scale = 0.024,
spread = {x = 100, y = 100, z = 100},
seed = 230,
octaves = 3,
persist = 0.6
},
y_min = 1,
y_max = 30,
decoration = "default:cactus",
height = 3,
height_max = 4,
})
-- Long grasses
for length = 1, 5 do
minetest.register_decoration({
deco_type = "simple",
place_on = {"default:dirt_with_grass"},
sidelen = 16,
noise_params = {
offset = 0,
scale = 0.007,
spread = {x = 100, y = 100, z = 100},
seed = 329,
octaves = 3,
persist = 0.6
},
y_min = 1,
y_max = 30,
decoration = "default:grass_"..length,
})
end
-- Dry shrubs
minetest.register_decoration({
deco_type = "simple",
place_on = {"default:desert_sand", "default:dirt_with_snow"},
sidelen = 16,
noise_params = {
offset = 0,
scale = 0.035,
spread = {x = 100, y = 100, z = 100},
seed = 329,
octaves = 3,
persist = 0.6
},
y_min = 1,
y_max = 30,
decoration = "default:dry_shrub",
})
end
-- All mapgens except mgv6 and singlenode
local function register_grass_decoration(offset, scale, length)
minetest.register_decoration({
deco_type = "simple",
place_on = {"default:dirt_with_grass", "default:sand"},
sidelen = 16,
noise_params = {
offset = offset,
scale = scale,
spread = {x=200, y=200, z=200},
seed = 329,
octaves = 3,
persist = 0.6
},
biomes = {
"stone_grassland", "stone_grassland_ocean",
"sandstone_grassland", "sandstone_grassland_ocean",
"deciduous_forest", "deciduous_forest_ocean",
"coniferous_forest", "coniferous_forest_ocean",
},
y_min = 5,
y_max = 31000,
decoration = "default:grass_"..length,
})
end
local function register_dry_grass_decoration(offset, scale, length)
minetest.register_decoration({
deco_type = "simple",
place_on = {"default:dirt_with_dry_grass"},
sidelen = 16,
noise_params = {
offset = offset,
scale = scale,
spread = {x=200, y=200, z=200},
seed = 329,
octaves = 3,
persist = 0.6
},
biomes = {"savanna"},
y_min = 5,
y_max = 31000,
decoration = "default:dry_grass_"..length,
})
end
function default.register_decorations()
minetest.clear_registered_decorations()
-- Apple tree
minetest.register_decoration({
deco_type = "schematic",
place_on = {"default:dirt_with_grass"},
sidelen = 16,
noise_params = {
offset = 0.04,
scale = 0.02,
spread = {x=250, y=250, z=250},
seed = 2,
octaves = 3,
persist = 0.66
},
biomes = {"deciduous_forest"},
y_min = 6,
y_max = 31000,
schematic = minetest.get_modpath("default").."/schematics/apple_tree.mts",
flags = "place_center_x, place_center_z",
})
-- Jungle tree
minetest.register_decoration({
deco_type = "schematic",
place_on = {"default:dirt_with_grass", "default:dirt"},
sidelen = 80,
fill_ratio = 0.09,
biomes = {"rainforest", "rainforest_swamp"},
y_min = 0,
y_max = 31000,
schematic = minetest.get_modpath("default").."/schematics/jungle_tree.mts",
flags = "place_center_x, place_center_z",
})
-- Taiga and temperate forest pine tree
minetest.register_decoration({
deco_type = "schematic",
place_on = {"default:snowblock", "default:dirt_with_grass"},
sidelen = 16,
noise_params = {
offset = 0.04,
scale = 0.02,
spread = {x=250, y=250, z=250},
seed = 2,
octaves = 3,
persist = 0.66
},
biomes = {"taiga", "coniferous_forest"},
y_min = 2,
y_max = 31000,
schematic = minetest.get_modpath("default").."/schematics/pine_tree.mts",
flags = "place_center_x, place_center_z",
})
-- Acacia tree
minetest.register_decoration({
deco_type = "schematic",
place_on = {"default:dirt_with_dry_grass"},
sidelen = 80,
noise_params = {
offset = 0,
scale = 0.003,
spread = {x=250, y=250, z=250},
seed = 2,
octaves = 3,
persist = 0.66
},
biomes = {"savanna"},
y_min = 6,
y_max = 31000,
schematic = minetest.get_modpath("default").."/schematics/acacia_tree.mts",
flags = "place_center_x, place_center_z",
rotation = "random",
})
-- Large cactus
minetest.register_decoration({
deco_type = "schematic",
place_on = {"default:desert_sand"},
sidelen = 80,
noise_params = {
offset = -0.0005,
scale = 0.0015,
spread = {x=200, y=200, z=200},
seed = 230,
octaves = 3,
persist = 0.6
},
biomes = {"desert"},
y_min = 5,
y_max = 31000,
schematic = minetest.get_modpath("default").."/schematics/large_cactus.mts",
flags = "place_center_x",
rotation = "random",
})
-- Cactus
minetest.register_decoration({
deco_type = "simple",
place_on = {"default:desert_sand"},
sidelen = 80,
noise_params = {
offset = -0.0005,
scale = 0.0015,
spread = {x=200, y=200, z=200},
seed = 230,
octaves = 3,
persist = 0.6
},
biomes = {"desert"},
y_min = 5,
y_max = 31000,
decoration = "default:cactus",
height = 2,
height_max = 5,
})
-- Papyrus
minetest.register_decoration({
deco_type = "schematic",
place_on = {"default:sand"},
sidelen = 16,
noise_params = {
offset = -0.3,
scale = 0.7,
spread = {x=200, y=200, z=200},
seed = 354,
octaves = 3,
persist = 0.7
},
biomes = {"savanna_ocean", "desert_ocean"},
y_min = 0,
y_max = 0,
schematic = minetest.get_modpath("default").."/schematics/papyrus.mts",
})
-- Grasses
register_grass_decoration(-0.03, 0.09, 5)
register_grass_decoration(-0.015, 0.075, 4)
register_grass_decoration(0, 0.06, 3)
register_grass_decoration(0.015, 0.045, 2)
register_grass_decoration(0.03, 0.03, 1)
-- Dry grasses
register_dry_grass_decoration(0.01, 0.05, 5)
register_dry_grass_decoration(0.03, 0.03, 4)
register_dry_grass_decoration(0.05, 0.01, 3)
register_dry_grass_decoration(0.07, -0.01, 2)
register_dry_grass_decoration(0.09, -0.03, 1)
-- Junglegrass
minetest.register_decoration({
deco_type = "simple",
place_on = {"default:dirt_with_grass"},
sidelen = 80,
fill_ratio = 0.1,
biomes = {"rainforest"},
y_min = 1,
y_max = 31000,
decoration = "default:junglegrass",
})
-- Dry shrub
minetest.register_decoration({
deco_type = "simple",
place_on = {"default:desert_sand", "default:dirt_with_snow"},
sidelen = 16,
noise_params = {
offset = 0,
scale = 0.02,
spread = {x=200, y=200, z=200},
seed = 329,
octaves = 3,
persist = 0.6
},
biomes = {"desert", "tundra"},
y_min = 2,
y_max = 31000,
decoration = "default:dry_shrub",
})
end
--
-- Generate nyan cats
--
-- All mapgens except singlenode
function default.make_nyancat(pos, facedir, length)
local tailvec = {x = 0, y = 0, z = 0}
if facedir == 0 then
tailvec.z = 1
elseif facedir == 1 then
tailvec.x = 1
elseif facedir == 2 then
tailvec.z = -1
elseif facedir == 3 then
tailvec.x = -1
else
facedir = 0
tailvec.z = 1
end
local p = {x = pos.x, y = pos.y, z = pos.z}
minetest.set_node(p, {name = "default:nyancat", param2 = facedir})
for i = 1, length do
p.x = p.x + tailvec.x
p.z = p.z + tailvec.z
minetest.set_node(p, {name = "default:nyancat_rainbow", param2 = facedir})
end
end
function default.generate_nyancats(minp, maxp, seed)
local height_min = -31000
local height_max = -32
if maxp.y < height_min or minp.y > height_max then
return
end
local y_min = math.max(minp.y, height_min)
local y_max = math.min(maxp.y, height_max)
local volume = (maxp.x - minp.x + 1) * (y_max - y_min + 1) * (maxp.z - minp.z + 1)
local pr = PseudoRandom(seed + 9324342)
local max_num_nyancats = math.floor(volume / (16 * 16 * 16))
for i = 1, max_num_nyancats do
if pr:next(0, 1000) == 0 then
local x0 = pr:next(minp.x, maxp.x)
local y0 = pr:next(minp.y, maxp.y)
local z0 = pr:next(minp.z, maxp.z)
local p0 = {x = x0, y = y0, z = z0}
default.make_nyancat(p0, pr:next(0, 3), pr:next(3, 15))
end
end
end
--
-- Detect mapgen to select functions
--
-- Mods using singlenode mapgen can call these functions to enable
-- the use of minetest.generate_ores or minetest.generate_decorations
local mg_params = minetest.get_mapgen_params()
if mg_params.mgname == "v6" then
default.register_ores()
default.register_mgv6_decorations()
minetest.register_on_generated(default.generate_nyancats)
elseif mg_params.mgname ~= "singlenode" then
default.register_ores()
default.register_biomes()
default.register_decorations()
minetest.register_on_generated(default.generate_nyancats)
end
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