--- minetest/default/mapgen.lua
+-- 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",
+})
+
+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")
-local function generate_ore(name, wherein, minp, maxp, seed, chunks_per_volume, ore_per_chunk, height_min, height_max)
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(27 / ore_per_chunk)
+ 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)
+ 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)
- local z0 = pr:next(minp.z, maxp.z)
+ 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=-1,1 do
- for y1=-1,1 do
- for z1=-1,1 do
+ 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.env:get_node(p2).name == wherein then
- minetest.env:set_node(p2, {name=name})
+ if minetest.get_node(p2).name == wherein then
+ minetest.set_node(p2, {name=name})
end
end
end
--print("generate_ore done")
end
-minetest.register_on_generated(function(minp, maxp, seed)
- generate_ore("default:stone_with_coal", "default:stone", minp, maxp, seed, 1/8/8/8, 5, -64, 64)
- generate_ore("default:stone_with_iron", "default:stone", minp, maxp, seed+1, 1/16/16/16, 5, 3, 7)
- generate_ore("default:stone_with_iron", "default:stone", minp, maxp, seed+2, 1/12/12/12, 5, -16, 2)
- generate_ore("default:stone_with_iron", "default:stone", minp, maxp, seed+3, 1/9/9/9, 5, -64, -17)
- -- Generate clay
+--
+-- 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 = 4
+ local divlen = 16
local divs = (maxp.x-minp.x)/divlen+1;
- for divx=1,divs do
- for divz=1,divs do
- local cx = minp.x + math.floor((divx+0.5)*divlen)
- local cz = minp.z + math.floor((divz+0.5)*divlen)
- local is_shallow = true
- if minetest.env:get_node({x=cx-divlen*2,y=1,z=cz+0}).name == "default:water_source" or
- minetest.env:get_node({x=cx+divlen*2,y=1,z=cz+0}).name == "default:water_source" or
- minetest.env:get_node({x=cx,y=1,z=cz-divlen*2}).name == "default:water_source" or
- minetest.env:get_node({x=cx,y=1,z=cz+divlen*2}).name == "default:water_source" then
- is_shallow = false
- end
- if is_shallow and
- minetest.env:get_node({x=cx,y=1,z=cz}).name == "default:water_source" and
- minetest.env:get_node({x=cx,y=0,z=cz}).name == "default:sand" then
- for x1=-divlen,divlen do
- for z1=-divlen,divlen do
- if minetest.env:get_node({x=cx+x1,y=0,z=cz+z1}).name == "default:sand" then
- minetest.env:set_node({x=cx+x1,y=0,z=cz+z1}, {name="default:clay"})
+ 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
+
+--
+-- Detect mapgen and register suitable on-generated function
+--
+
+minetest.register_on_mapgen_init(function(mg_params)
+ if mg_params.mgname == "v6" then
+ minetest.register_on_generated(default.mgv6_ongen)
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)
projects / oweals / minetest_game.git / blobdiff