forked from minetest-mods/technic
perlin improvements
as suggested by @paramat
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@ -116,27 +116,30 @@ minetest.register_ore({
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})
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})
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-- Sulfur
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-- Sulfur
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local sulfur_buf = nil
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local sulfur_noise= nil
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minetest.register_on_generated(function(minp, maxp, seed)
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minetest.register_on_generated(function(minp, maxp, seed)
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local vm, emin, emax = minetest.get_mapgen_object("voxelmanip")
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local vm, emin, emax = minetest.get_mapgen_object("voxelmanip")
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local a = VoxelArea:new{
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local a = VoxelArea:new{
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MinEdge = {x = emin.x, y = emin.y, z = emin.z},
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MinEdge = {x = emin.x, y = emin.y, z = emin.z},
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MaxEdge = {x = emax.x, y = emax.y, z = emax.z},
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MaxEdge = {x = emax.x, y = emax.y, z = emax.z},
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}
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}
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local data = vm:get_data()
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local data = vm:get_data(sulfur_buf)
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local pr = PseudoRandom(17 * minp.x + 42 * minp.y + 101 * minp.z)
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local pr = PseudoRandom(17 * minp.x + 42 * minp.y + 101 * minp.z)
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local noise = minetest.get_perlin(9876, 3, 0.5, 100)
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sulfur_noise = sulfur_noise or minetest.get_perlin(9876, 3, 0.5, 100)
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local c_lava = minetest.get_content_id("default:lava_source")
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local c_lava = minetest.get_content_id("default:lava_source")
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local c_lava_flowing = minetest.get_content_id("default:lava_flowing")
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local c_lava_flowing = minetest.get_content_id("default:lava_flowing")
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local c_stone = minetest.get_content_id("default:stone")
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local c_stone = minetest.get_content_id("default:stone")
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local c_sulfur = minetest.get_content_id("technic:mineral_sulfur")
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local c_sulfur = minetest.get_content_id("technic:mineral_sulfur")
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local grid_size = 5
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local grid_size = 5
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for x = minp.x + math.floor(grid_size / 2), maxp.x, grid_size do
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for x = minp.x + math.floor(grid_size / 2), maxp.x, grid_size do
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for y = minp.y + math.floor(grid_size / 2), maxp.y, grid_size do
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for y = minp.y + math.floor(grid_size / 2), maxp.y, grid_size do
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for z = minp.z + math.floor(grid_size / 2), maxp.z, grid_size do
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for z = minp.z + math.floor(grid_size / 2), maxp.z, grid_size do
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local c = data[a:index(x, y, z)]
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local c = data[a:index(x, y, z)]
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if (c == c_lava or c == c_lava_flowing) and noise:get3d({x = x, y = z, z = z}) >= 0.4 then
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if (c == c_lava or c == c_lava_flowing) and sulfur_noise:get3d({x = x, y = z, z = z}) >= 0.4 then
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for xx = math.max(minp.x, x - grid_size), math.min(maxp.x, x + grid_size) do
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for xx = math.max(minp.x, x - grid_size), math.min(maxp.x, x + grid_size) do
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for yy = math.max(minp.y, y - grid_size), math.min(maxp.y, y + grid_size) do
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for yy = math.max(minp.y, y - grid_size), math.min(maxp.y, y + grid_size) do
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for zz = math.max(minp.z, z - grid_size), math.min(maxp.z, z + grid_size) do
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for zz = math.max(minp.z, z - grid_size), math.min(maxp.z, z + grid_size) do
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@ -151,7 +154,7 @@ minetest.register_on_generated(function(minp, maxp, seed)
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end
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end
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end
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end
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end
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end
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vm:set_data(data)
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vm:set_data(data)
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vm:write_to_map(data)
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vm:write_to_map(data)
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end)
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end)
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