61 lines
1.6 KiB
Lua
61 lines
1.6 KiB
Lua
dofile(fun_caves.path .. "/deco_clouds.lua")
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local rand = math.random
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local min = math.min
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local floor = math.floor
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local ceil = math.ceil
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local abs = math.ceil
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local map_max = 31000
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local cloud_noise_1 = {offset = 10, scale = 10, seed = 3721, spread = {x = 120, y = 120, z = 120}, octaves = 3, persist = 1, lacunarity = 2}
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fun_caves.cloudgen = function(minp, maxp, data, area, node)
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local clouds = ceil(minp.y / floor(map_max / 7))
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if abs(clouds * floor(map_max / 7) - minp.y) > 80 then
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return
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end
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local csize = vector.add(vector.subtract(maxp, minp), 1)
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local cloud_1 = minetest.get_perlin_map(cloud_noise_1, {x=csize.x, y=csize.z}):get2dMap_flat({x=minp.x, y=minp.z})
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local write = false
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local index = 0
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local index3d = 0
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for z = minp.z, maxp.z do
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for x = minp.x, maxp.x do
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index = index + 1
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--index3d = noise_area:index(x, minp.y-1, z)
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index3d = (z - minp.z) * (csize.y + 2) * csize.x + (x - minp.x) + 1
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--local height = cloud_1[index] + minp.y + 32
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local ivm = area:index(x, minp.y-1, z)
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if cloud_1[index] > 0 then
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for y = minp.y, maxp.y do
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local dy = y - minp.y
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if dy > 32 and cloud_1[index] > 15 then
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if dy < 47 then
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if dy < 47 - (cloud_1[index] - 15) then
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data[ivm] = node['fun_caves:cloud']
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else
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data[ivm] = node['default:water_source']
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end
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write = true
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end
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elseif dy >= 32 - cloud_1[index] and dy <= 32 + cloud_1[index] then
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data[ivm] = node['fun_caves:cloud']
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write = true
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end
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ivm = ivm + area.ystride
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index3d = index3d + csize.x
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end
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end
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end
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end
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return write
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end
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