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https://github.com/sbrl/Minetest-WorldEditAdditions.git
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39 lines
1.7 KiB
Lua
39 lines
1.7 KiB
Lua
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--- Applies a layer of 2D noise over the terrain in the defined region.
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-- @module worldeditadditions.noise2d
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-- ███ ██ ██████ ██ ███████ ███████ ██████ ██████
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-- ████ ██ ██ ██ ██ ██ ██ ██ ██ ██
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-- ██ ██ ██ ██ ██ ██ ███████ █████ █████ ██ ██
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-- ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██
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-- ██ ████ ██████ ██ ███████ ███████ ███████ ██████
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--- Applies a layer of 2d noise over the terrain in the defined region.
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-- @param pos1 Vector pos1 of the defined region
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-- @param pos2 Vector pos2 of the defined region
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-- @param noise_params table A noise parameters table. Will be passed unmodified to PerlinNoise() from the Minetest API.
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function worldeditadditions.noise2d(pos1, pos2, noise_params)
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pos1, pos2 = worldedit.sort_pos(pos1, pos2)
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-- pos2 will always have the highest co-ordinates now
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-- Fetch the nodes in the specified area
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local manip, area = worldedit.manip_helpers.init(pos1, pos2)
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local data = manip:get_data()
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local heightmap_old, heightmap_size = worldeditadditions.make_heightmap(
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pos1, pos2,
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manip, area,
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data
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)
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local heightmap_new = worldeditadditions.shallowcopy(heightmap_old)
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local perlin_map = PerlinNoiseMap(noise_params, heightmap_size)
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local stats = { added = 0, removed = 0 }
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-- Save the modified nodes back to disk & return
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-- No need to save - this function doesn't actually change anything
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worldedit.manip_helpers.finish(manip, data)
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return true, stats
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end
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