69 lines
1.9 KiB
Lua
69 lines
1.9 KiB
Lua
BLOCKS_PER_CHUNK = 65536
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local _, dir = parse_path(__DIR__)
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ores = file.read_combined_list(dir.."/ores.json")
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local function place_ores(placements, x, z, w, d, seed, hmap, chunk_height)
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for _, ore in ipairs(ores) do
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local count = BLOCKS_PER_CHUNK / ore.rarity
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-- average count is less than 1
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local addchance = math.fmod(count, 1.0)
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if math.random() < addchance then
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count = count + 1
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end
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for i=1,count do
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local sx = math.random() * w
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local sz = math.random() * d
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local sy = math.random() * (chunk_height * 0.5)
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if sy < hmap:at(sx, sz) * chunk_height - 6 then
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table.insert(placements, {ore.struct, {sx, sy, sz}, math.random()*4})
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end
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end
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end
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end
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function place_structures(x, z, w, d, seed, hmap, chunk_height)
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local placements = {}
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place_ores(placements, x, z, w, d, seed, hmap, chunk_height)
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return placements
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end
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function generate_heightmap(x, y, w, h, seed, s)
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local umap = Heightmap(w, h)
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local vmap = Heightmap(w, h)
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umap.noiseSeed = seed
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vmap.noiseSeed = seed
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vmap:noise({x+521, y+70}, 0.1*s, 3, 25.8)
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vmap:noise({x+95, y+246}, 0.15*s, 3, 25.8)
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local map = Heightmap(w, h)
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map.noiseSeed = seed
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map:noise({x, y}, 0.8*s, 4, 0.02)
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map:cellnoise({x, y}, 0.1*s, 3, 0.3, umap, vmap)
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map:add(0.7)
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local rivermap = Heightmap(w, h)
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rivermap.noiseSeed = seed
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rivermap:noise({x+21, y+12}, 0.1*s, 4)
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rivermap:abs()
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rivermap:mul(2.0)
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rivermap:pow(0.15)
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rivermap:max(0.3)
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map:mul(rivermap)
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return map
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end
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function generate_biome_parameters(x, y, w, h, seed, s)
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local tempmap = Heightmap(w, h)
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tempmap.noiseSeed = seed + 5324
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tempmap:noise({x, y}, 0.04*s, 6)
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local hummap = Heightmap(w, h)
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hummap.noiseSeed = seed + 953
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hummap:noise({x, y}, 0.04*s, 6)
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tempmap:pow(3)
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hummap:pow(3)
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return tempmap, hummap
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end
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