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Tune ore generation

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This commit is contained in:
Perttu Ahola 2012-05-20 14:32:19 +03:00
parent 1a62348e44
commit 216227bac3
1 changed files with 12 additions and 9 deletions
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21
mods/default/mapgen.lua
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@ -29,7 +29,7 @@ minetest.register_alias("mapgen_desert_stone", "default:desert_stone")
-- Ore generation -- Ore generation
-- --
local function generate_ore(name, wherein, minp, maxp, seed, chunks_per_volume, ore_per_chunk, height_min, height_max) 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 if maxp.y < height_min or minp.y > height_max then
return return
end end
@ -38,10 +38,6 @@ local function generate_ore(name, wherein, minp, maxp, seed, chunks_per_volume,
local volume = (maxp.x-minp.x+1)*(y_max-y_min+1)*(maxp.z-minp.z+1) local volume = (maxp.x-minp.x+1)*(y_max-y_min+1)*(maxp.z-minp.z+1)
local pr = PseudoRandom(seed) local pr = PseudoRandom(seed)
local num_chunks = math.floor(chunks_per_volume * volume) 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) local inverse_chance = math.floor(chunk_size*chunk_size*chunk_size / ore_per_chunk)
--print("generate_ore num_chunks: "..dump(num_chunks)) --print("generate_ore num_chunks: "..dump(num_chunks))
for i=1,num_chunks do for i=1,num_chunks do
@ -85,10 +81,17 @@ function default.make_cactus(pos, size)
end end
minetest.register_on_generated(function(minp, maxp, seed) 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 regular ores
generate_ore("default:stone_with_iron", "default:stone", minp, maxp, seed+1, 1/16/16/16, 5, -5, 7) 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+2, 1/12/12/12, 5, -16, -5) 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+3, 1/9/9/9, 5, -31000, -17) 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)
generate_ore("default:mese", "default:stone", minp, maxp, seed+5, 1/9/9/9, 3, 5, -31000,-128)
generate_ore("default:stone_with_coal", "default:stone", minp, maxp, seed+7, 1/24/24/24, 6,27, -31000, 0)
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 if maxp.y >= 2 and minp.y <= 0 then
-- Generate clay -- Generate clay
-- Assume X and Z lengths are equal -- Assume X and Z lengths are equal