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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")
- --
- -- Ore generation
- --
- 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,
- height_min = -31000,
- height_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,
- height_min = -31000,
- height_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,
- height_min = -15,
- height_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,
- height_min = -63,
- height_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,
- height_min = -31000,
- height_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,
- height_min = -31000,
- height_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,
- height_min = -255,
- height_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,
- height_min = -31000,
- height_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,
- height_min = -31000,
- height_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,
- height_min = -255,
- height_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,
- height_min = -31000,
- height_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,
- height_min = -255,
- height_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,
- height_min = -31000,
- height_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,
- height_min = -63,
- height_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,
- height_min = -31000,
- height_max = -64,
- flags = "absheight",
- })
- if minetest.setting_get("mg_name") == "indev" then
- -- Floatlands and high mountains springs
- minetest.register_ore({
- ore_type = "scatter",
- ore = "default:water_source",
- ore_param2 = 128,
- wherein = "default:stone",
- clust_scarcity = 40*40*40,
- clust_num_ores = 8,
- clust_size = 3,
- height_min = 100,
- height_max = 31000,
- })
- minetest.register_ore({
- ore_type = "scatter",
- ore = "default:lava_source",
- ore_param2 = 128,
- wherein = "default:stone",
- clust_scarcity = 50*50*50,
- clust_num_ores = 5,
- clust_size = 2,
- height_min = 10000,
- height_max = 31000,
- })
- minetest.register_ore({
- ore_type = "scatter",
- ore = "default:sand",
- wherein = "default:stone",
- clust_scarcity = 20*20*20,
- clust_num_ores = 5*5*3,
- clust_size = 5,
- height_min = 500,
- height_max = 31000,
- })
- -- Underground springs
- minetest.register_ore({
- ore_type = "scatter",
- ore = "default:water_source",
- ore_param2 = 128,
- wherein = "default:stone",
- clust_scarcity = 25*25*25,
- clust_num_ores = 8,
- clust_size = 3,
- height_min = -10000,
- height_max = -10,
- })
- minetest.register_ore({
- ore_type = "scatter",
- ore = "default:lava_source",
- ore_param2 = 128,
- wherein = "default:stone",
- clust_scarcity = 35*35*35,
- clust_num_ores = 5,
- clust_size = 2,
- height_min = -31000,
- height_max = -100,
- })
- end
- minetest.register_ore({
- ore_type = "scatter",
- ore = "default:clay",
- wherein = "default:sand",
- clust_scarcity = 15*15*15,
- clust_num_ores = 64,
- clust_size = 5,
- height_max = 0,
- height_min = -10,
- })
- 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
- 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
- -- 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 generate_nyancats(seed, minp, maxp)
- 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(function(minp, maxp, seed)
- 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
- -- Generate nyan cats
- generate_nyancats(seed, minp, maxp)
- end)
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