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player_api/mods/default/mapgen.lua
paramat a192f9fc78 default/mapgen.lua: Update biomes for new biome API 
Register blob ores in mgv6 to replace addDirtGravelBlobs
Combine ores and blobs functions
2015-03-17 07:46:45 +00:00

798 lines
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-- mods/default/mapgen.lua
--
-- Aliases for map generator outputs
--
minetest.register_alias("mapgen_stone", "default:stone")
minetest.register_alias("mapgen_tree", "default:tree")
minetest.register_alias("mapgen_leaves", "default:leaves")
minetest.register_alias("mapgen_jungletree", "default:jungletree")
minetest.register_alias("mapgen_jungleleaves", "default:jungleleaves")
minetest.register_alias("mapgen_apple", "default:apple")
minetest.register_alias("mapgen_water_source", "default:water_source")
minetest.register_alias("mapgen_dirt", "default:dirt")
minetest.register_alias("mapgen_sand", "default:sand")
minetest.register_alias("mapgen_gravel", "default:gravel")
minetest.register_alias("mapgen_clay", "default:clay")
minetest.register_alias("mapgen_lava_source", "default:lava_source")
minetest.register_alias("mapgen_cobble", "default:cobble")
minetest.register_alias("mapgen_mossycobble", "default:mossycobble")
minetest.register_alias("mapgen_dirt_with_grass", "default:dirt_with_grass")
minetest.register_alias("mapgen_junglegrass", "default:junglegrass")
minetest.register_alias("mapgen_stone_with_coal", "default:stone_with_coal")
minetest.register_alias("mapgen_stone_with_iron", "default:stone_with_iron")
minetest.register_alias("mapgen_mese", "default:mese")
minetest.register_alias("mapgen_desert_sand", "default:desert_sand")
minetest.register_alias("mapgen_desert_stone", "default:desert_stone")
minetest.register_alias("mapgen_stair_cobble", "stairs:stair_cobble")
--
-- Register ores
--
function default.register_ores()
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,
flags = "absheight",
})
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,
flags = "absheight",
})
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,
flags = "absheight",
})
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,
flags = "absheight",
})
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,
flags = "absheight",
})
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,
flags = "absheight",
})
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,
flags = "absheight",
})
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,
flags = "absheight",
})
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,
flags = "absheight",
})
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,
flags = "absheight",
})
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,
flags = "absheight",
})
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
},
})
end
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
--
-- Mgv6 papyrus, cactus, long grasses
--
function default.mgv6_ongen(minp, maxp, seed)
function default.make_papyrus(pos, size)
for y=0,size-1 do
local p = {x=pos.x, y=pos.y+y, z=pos.z}
local nn = minetest.get_node(p).name
if minetest.registered_nodes[nn] and
minetest.registered_nodes[nn].buildable_to then
minetest.set_node(p, {name="default:papyrus"})
else
return
end
end
end
function default.make_cactus(pos, size)
for y=0,size-1 do
local p = {x=pos.x, y=pos.y+y, z=pos.z}
local nn = minetest.get_node(p).name
if minetest.registered_nodes[nn] and
minetest.registered_nodes[nn].buildable_to then
minetest.set_node(p, {name="default:cactus"})
else
return
end
end
end
if maxp.y >= 2 and minp.y <= 0 then
-- Generate papyrus
local perlin1 = minetest.get_perlin(354, 3, 0.7, 100)
-- Assume X and Z lengths are equal
local divlen = 8
local divs = (maxp.x-minp.x)/divlen+1;
for divx=0,divs-1 do
for divz=0,divs-1 do
local x0 = minp.x + math.floor((divx+0)*divlen)
local z0 = minp.z + math.floor((divz+0)*divlen)
local x1 = minp.x + math.floor((divx+1)*divlen)
local z1 = minp.z + math.floor((divz+1)*divlen)
-- Determine papyrus amount from perlin noise
local papyrus_amount = math.floor(perlin1:get2d({x=x0, y=z0}) * 45 - 20)
-- Find random positions for papyrus based on this random
local pr = PseudoRandom(seed+1)
for i=0,papyrus_amount do
local x = pr:next(x0, x1)
local z = pr:next(z0, z1)
if minetest.get_node({x=x,y=1,z=z}).name == "default:dirt_with_grass" and
minetest.find_node_near({x=x,y=1,z=z}, 1, "default:water_source") then
default.make_papyrus({x=x,y=2,z=z}, pr:next(2, 4))
end
end
end
end
-- Generate cactuses
local perlin1 = minetest.get_perlin(230, 3, 0.6, 100)
-- Assume X and Z lengths are equal
local divlen = 16
local divs = (maxp.x-minp.x)/divlen+1;
for divx=0,divs-1 do
for divz=0,divs-1 do
local x0 = minp.x + math.floor((divx+0)*divlen)
local z0 = minp.z + math.floor((divz+0)*divlen)
local x1 = minp.x + math.floor((divx+1)*divlen)
local z1 = minp.z + math.floor((divz+1)*divlen)
-- Determine cactus amount from perlin noise
local cactus_amount = math.floor(perlin1:get2d({x=x0, y=z0}) * 6 - 3)
-- Find random positions for cactus based on this random
local pr = PseudoRandom(seed+1)
for i=0,cactus_amount do
local x = pr:next(x0, x1)
local z = pr:next(z0, z1)
-- Find ground level (0...15)
local ground_y = nil
for y=30,0,-1 do
if minetest.get_node({x=x,y=y,z=z}).name ~= "air" then
ground_y = y
break
end
end
-- If desert sand, make cactus
if ground_y and minetest.get_node({x=x,y=ground_y,z=z}).name == "default:desert_sand" then
default.make_cactus({x=x,y=ground_y+1,z=z}, pr:next(3, 4))
end
end
end
end
-- Generate grass
local perlin1 = minetest.get_perlin(329, 3, 0.6, 100)
-- Assume X and Z lengths are equal
local divlen = 16
local divs = (maxp.x-minp.x)/divlen+1;
for divx=0,divs-1 do
for divz=0,divs-1 do
local x0 = minp.x + math.floor((divx+0)*divlen)
local z0 = minp.z + math.floor((divz+0)*divlen)
local x1 = minp.x + math.floor((divx+1)*divlen)
local z1 = minp.z + math.floor((divz+1)*divlen)
-- Determine grass amount from perlin noise
local grass_amount = math.floor(perlin1:get2d({x=x0, y=z0}) ^ 3 * 9)
-- Find random positions for grass based on this random
local pr = PseudoRandom(seed+1)
for i=0,grass_amount do
local x = pr:next(x0, x1)
local z = pr:next(z0, z1)
-- Find ground level (0...15)
local ground_y = nil
for y=30,0,-1 do
if minetest.get_node({x=x,y=y,z=z}).name ~= "air" then
ground_y = y
break
end
end
if ground_y then
local p = {x=x,y=ground_y+1,z=z}
local nn = minetest.get_node(p).name
-- Check if the node can be replaced
if minetest.registered_nodes[nn] and
minetest.registered_nodes[nn].buildable_to then
nn = minetest.get_node({x=x,y=ground_y,z=z}).name
-- If desert sand, add dry shrub
if nn == "default:desert_sand" then
minetest.set_node(p,{name="default:dry_shrub"})
-- If dirt with grass, add grass
elseif nn == "default:dirt_with_grass" then
minetest.set_node(p,{name="default:grass_"..pr:next(1, 5)})
end
end
end
end
end
end
end
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)
--
-- 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 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
--
local mg_params = minetest.get_mapgen_params()
if mg_params.mgname == "v5" then
default.register_biomes()
default.register_decorations()
default.register_ores()
elseif mg_params.mgname == "v6" then
minetest.register_on_generated(default.mgv6_ongen)
default.register_ores()
elseif mg_params.mgname == "v7" then
default.register_biomes()
default.register_decorations()
default.register_ores()
end
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