Your phone or window isn't wide enough to display the code box. If it's a phone, try rotating it to landscape mode.

- Code: Select all
`local function 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 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)

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.env:get_node(p2).name == wherein then

minetest.env:set_node(p2, {name=name})

end

end

end

end

end

end

end

--print("generate_ore done")

end

generate_ore("default:stone_with_coal", "default:stone", minp, maxp, seed+0, 1/8/8/8, 3, 8, -31000, 64)

generate_ore("default:stone_with_iron", "default:stone", minp, maxp, seed+1, 1/12/12/12, 2, 3, -15, 2)

generate_ore("default:stone_with_iron", "default:stone", minp, maxp, seed+2, 1/9/9/9, 3, 5, -63, -16)

generate_ore("default:stone_with_iron", "default:stone", minp, maxp, seed+3, 1/7/7/7, 3, 5, -31000, -64)

generate_ore("default:mese", "default:stone", minp, maxp, seed+4, 1/16/16/16, 2, 3, -127, -64)

But the variables of chunks_per_volume, chunk_size and ore_per_chunk don't make any sense to me. I've looked around in the website and in irc but no one seems to know. So what exactly dose chunks_per_volume, chunk_size and ore_per_chunk do? Is there an easier way to make it so ores generate while still being able to set how rare they are and where they spawn height wise?