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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")
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_pinetree", "default:pinetree")
minetest.register_alias("mapgen_pine_needles", "default:pine_needles")
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
--
-- Blob ore first to avoid other ores inside blobs
function default.register_ores()
minetest.register_ore({
ore_type = "blob",
ore = "default:clay",
wherein = {"default:sand"},
clust_scarcity = 24*24*24,
clust_size = 7,
y_min = -15,
y_max = 0,
noise_threshhold = 0,
noise_params = {
offset=0.35,
scale=0.2,
spread={x=5, y=5, z=5},
seed=-316,
octaves=1,
persist=0.5
},
})
minetest.register_ore({
ore_type = "blob",
ore = "default:sand",
wherein = {"default:stone"},
clust_scarcity = 24*24*24,
clust_size = 7,
y_min = -63,
y_max = 4,
noise_threshhold = 0,
noise_params = {
offset=0.35,
scale=0.2,
spread={x=5, y=5, z=5},
seed=2316,
octaves=1,
persist=0.5
},
})
minetest.register_ore({
ore_type = "blob",
ore = "default:dirt",
wherein = {"default:stone"},
clust_scarcity = 24*24*24,
clust_size = 7,
y_min = -63,
y_max = 31000,
noise_threshhold = 0,
noise_params = {
offset=0.35,
scale=0.2,
spread={x=5, y=5, z=5},
seed=17676,
octaves=1,
persist=0.5
},
})
minetest.register_ore({
ore_type = "blob",
ore = "default:gravel",
wherein = {"default:stone"},
clust_scarcity = 24*24*24,
clust_size = 7,
y_min = -31000,
y_max = 31000,
noise_threshhold = 0,
noise_params = {
offset=0.35,
scale=0.2,
spread={x=5, y=5, z=5},
seed=766,
octaves=1,
persist=0.5
},
})
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,
})
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,
})
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,
})
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,
})
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,
})
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
--
function default.register_biomes()
minetest.clear_registered_biomes()
minetest.register_biome({
name = "default:grassland",
--node_dust = "",
node_top = "default:dirt_with_grass",
depth_top = 1,
node_filler = "default:dirt",
depth_filler = 1,
--node_stone = "",
--node_water_top = "",
--depth_water_top = ,
--node_water = "",
y_min = 5,
y_max = 31000,
heat_point = 50,
humidity_point = 50,
})
minetest.register_biome({
name = "default: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 = "",
y_min = -31000,
y_max = 4,
heat_point = 50,
humidity_point = 50,
})
end
--
-- Register mgv6 decorations
--
function default.register_mgv6_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,
})
-- 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
--
-- Register decorations
--
function default.register_decorations()
-- Flowers
minetest.register_decoration({
deco_type = "simple",
place_on = {"default:dirt_with_grass"},
sidelen = 16,
noise_params = {
offset = -0.02,
scale = 0.03,
spread = {x=200, y=200, z=200},
seed = 436,
octaves = 3,
persist = 0.6
},
biomes = {"default:grassland"},
y_min = -31000,
y_max = 31000,
decoration = "flowers:rose",
})
minetest.register_decoration({
deco_type = "simple",
place_on = {"default:dirt_with_grass"},
sidelen = 16,
noise_params = {
offset = -0.02,
scale = 0.03,
spread = {x=200, y=200, z=200},
seed = 19822,
octaves = 3,
persist = 0.6
},
biomes = {"default:grassland"},
y_min = 33,
y_max = 31000,
decoration = "flowers:tulip",
})
minetest.register_decoration({
deco_type = "simple",
place_on = {"default:dirt_with_grass"},
sidelen = 16,
noise_params = {
offset = -0.02,
scale = 0.03,
spread = {x=200, y=200, z=200},
seed = 1220999,
octaves = 3,
persist = 0.6
},
biomes = {"default:grassland"},
y_min = -31000,
y_max = 31000,
decoration = "flowers:dandelion_yellow",
})
minetest.register_decoration({
deco_type = "simple",
place_on = {"default:dirt_with_grass"},
sidelen = 16,
noise_params = {
offset = -0.02,
scale = 0.03,
spread = {x=200, y=200, z=200},
seed = 36662,
octaves = 3,
persist = 0.6
},
biomes = {"default:grassland"},
y_min = -31000,
y_max = 31000,
decoration = "flowers:geranium",
})
minetest.register_decoration({
deco_type = "simple",
place_on = {"default:dirt_with_grass"},
sidelen = 16,
noise_params = {
offset = -0.02,
scale = 0.03,
spread = {x=200, y=200, z=200},
seed = 1133,
octaves = 3,
persist = 0.6
},
biomes = {"default:grassland"},
y_min = -31000,
y_max = 31000,
decoration = "flowers:viola",
})
minetest.register_decoration({
deco_type = "simple",
place_on = {"default:dirt_with_grass"},
sidelen = 16,
noise_params = {
offset = -0.02,
scale = 0.03,
spread = {x=200, y=200, z=200},
seed = 73133,
octaves = 3,
persist = 0.6
},
biomes = {"default:grassland"},
y_min = -31000,
y_max = 31000,
decoration = "flowers:dandelion_white",
})
-- Grasses
minetest.register_decoration({
deco_type = "simple",
place_on = {"default:dirt_with_grass"},
sidelen = 16,
noise_params = {
offset = 0.04,
scale = 0.04,
spread = {x=200, y=200, z=200},
seed = 66440,
octaves = 3,
persist = 0.6
},
biomes = {"default:grassland"},
y_min = -31000,
y_max = 31000,
decoration = "default:grass_1",
})
minetest.register_decoration({
deco_type = "simple",
place_on = {"default:dirt_with_grass"},
sidelen = 16,
noise_params = {
offset = 0.02,
scale = 0.06,
spread = {x=200, y=200, z=200},
seed = 66440,
octaves = 3,
persist = 0.6
},
biomes = {"default:grassland"},
y_min = -31000,
y_max = 31000,
decoration = "default:grass_2",
})
minetest.register_decoration({
deco_type = "simple",
place_on = {"default:dirt_with_grass"},
sidelen = 16,
noise_params = {
offset = 0,
scale = 0.08,
spread = {x=200, y=200, z=200},
seed = 66440,
octaves = 3,
persist = 0.6
},
biomes = {"default:grassland"},
y_min = -31000,
y_max = 31000,
decoration = "default:grass_3",
})
minetest.register_decoration({
deco_type = "simple",
place_on = {"default:dirt_with_grass"},
sidelen = 16,
noise_params = {
offset = -0.02,
scale = 0.10,
spread = {x=200, y=200, z=200},
seed = 66440,
octaves = 3,
persist = 0.6
},
biomes = {"default:grassland"},
y_min = -31000,
y_max = 31000,
decoration = "default:grass_4",
})
minetest.register_decoration({
deco_type = "simple",
place_on = {"default:dirt_with_grass"},
sidelen = 16,
noise_params = {
offset = -0.04,
scale = 0.12,
spread = {x=200, y=200, z=200},
seed = 66440,
octaves = 3,
persist = 0.6
},
biomes = {"default:grassland"},
y_min = -31000,
y_max = 31000,
decoration = "default:grass_5",
})
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()
elseif mg_params.mgname ~= "singlenode" then
default.register_ores()
default.register_biomes()
default.register_decorations()
end
--
-- Generate nyan cats in all mapgens
--
-- facedir: 0/1/2/3 (head node facedir value)
-- length: length of rainbow tail
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
--print("default.make_nyancat(): Invalid facedir: "+dump(facedir))
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
minetest.register_on_generated(default.generate_nyancats)
--
-- Deprecated ore generation code
--
function default.generate_ore(name, wherein, minp, maxp, seed,
chunks_per_volume, chunk_size, ore_per_chunk, height_min, height_max)
minetest.log('action', "WARNING: default.generate_ore is deprecated")
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)
if chunk_size >= y_max - y_min + 1 then
return
end
local volume = (maxp.x-minp.x+1)*(y_max-y_min+1)*(maxp.z-minp.z+1)
local pr = PseudoRandom(seed)
local num_chunks = math.floor(chunks_per_volume * volume)
local inverse_chance = math.floor(chunk_size*chunk_size*chunk_size / ore_per_chunk)
--print("generate_ore num_chunks: "..dump(num_chunks))
for i=1,num_chunks do
local y0 = pr:next(y_min, y_max-chunk_size+1)
if y0 >= height_min and y0 <= height_max then
local x0 = pr:next(minp.x, maxp.x-chunk_size+1)
local z0 = pr:next(minp.z, maxp.z-chunk_size+1)
local p0 = {x=x0, y=y0, z=z0}
for x1=0,chunk_size-1 do
for y1=0,chunk_size-1 do
for z1=0,chunk_size-1 do
if pr:next(1,inverse_chance) == 1 then
local x2 = x0+x1
local y2 = y0+y1
local z2 = z0+z1
local p2 = {x=x2, y=y2, z=z2}
if minetest.get_node(p2).name == wherein then
minetest.set_node(p2, {name=name})
end
end
end
end
end
end
end
--print("generate_ore done")
end
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