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")
-- Ore generation
--
-local function generate_ore(name, wherein, minp, maxp, seed, chunks_per_volume, ore_per_chunk, height_min, height_max)
+function default.generate_ore(name, wherein, minp, maxp, seed, chunks_per_volume, chunk_size, ore_per_chunk, height_min, height_max)
if maxp.y < height_min or minp.y > height_max 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 chunk_size = 3
- if ore_per_chunk <= 4 then
- chunk_size = 2
- end
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
function default.make_papyrus(pos, size)
for y=0,size-1 do
local p = {x=pos.x, y=pos.y+y, z=pos.z}
- minetest.env:set_node(p, {name="default:papyrus"})
+ local nn = minetest.env:get_node(p).name
+ if minetest.registered_nodes[nn] and
+ minetest.registered_nodes[nn].buildable_to then
+ minetest.env: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}
- minetest.env:set_node(p, {name="default:cactus"})
+ local nn = minetest.env:get_node(p).name
+ if minetest.registered_nodes[nn] and
+ minetest.registered_nodes[nn].buildable_to then
+ minetest.env: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.env: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.env:set_node(p, {name="default:nyancat_rainbow"})
+ 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)
- generate_ore("default:stone_with_coal", "default:stone", minp, maxp, seed, 1/8/8/8, 5, -31000, 64)
- generate_ore("default:stone_with_iron", "default:stone", minp, maxp, seed+1, 1/16/16/16, 5, -5, 7)
- generate_ore("default:stone_with_iron", "default:stone", minp, maxp, seed+2, 1/12/12/12, 5, -16, -5)
- generate_ore("default:stone_with_iron", "default:stone", minp, maxp, seed+3, 1/9/9/9, 5, -31000, -17)
+ -- Generate regular ores
+ default.generate_ore("default:stone_with_coal", "default:stone", minp, maxp, seed+0, 1/8/8/8, 3, 8, -31000, 64)
+ default.generate_ore("default:stone_with_iron", "default:stone", minp, maxp, seed+1, 1/12/12/12, 2, 3, -15, 2)
+ default.generate_ore("default:stone_with_iron", "default:stone", minp, maxp, seed+2, 1/9/9/9, 3, 5, -63, -16)
+ default.generate_ore("default:stone_with_iron", "default:stone", minp, maxp, seed+3, 1/7/7/7, 3, 5, -31000, -64)
+
+ default.generate_ore("default:stone_with_mese", "default:stone", minp, maxp, seed+4, 1/16/16/16, 2, 3, -127, -64)
+ default.generate_ore("default:stone_with_mese", "default:stone", minp, maxp, seed+5, 1/9/9/9, 3, 5, -31000, -128)
+ default.generate_ore("default:mese", "default:stone", minp, maxp, seed+8, 1/16/16/16, 2, 3, -31000,-1024)
+
+ default.generate_ore("default:stone_with_coal", "default:stone", minp, maxp, seed+7, 1/24/24/24, 6,27, -31000, 0)
+ default.generate_ore("default:stone_with_iron", "default:stone", minp, maxp, seed+6, 1/24/24/24, 6,27, -31000, -64)
+
if maxp.y >= 2 and minp.y <= 0 then
-- Generate clay
-- Assume X and Z lengths are equal
end
end
end
+ -- Generate grass
+ local perlin1 = minetest.env: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.env: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.env: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.env:get_node({x=x,y=ground_y,z=z}).name
+ -- If desert sand, add dry shrub
+ if nn == "default:desert_sand" then
+ minetest.env:set_node(p,{name="default:dry_shrub"})
+
+ -- If dirt with grass, add grass
+ elseif nn == "default:dirt_with_grass" then
+ minetest.env: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)
projects / oweals / minetest_game.git / blobdiff