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https://github.com/sbrl/Minetest-WorldEditAdditions.git
synced 2024-11-23 07:43:01 +00:00
26 lines
719 B
Lua
26 lines
719 B
Lua
local wea_c = worldeditadditions_core
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local Vector3 = wea_c.Vector3
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--- Makes a circle brush of a given size.
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-- @param size Vector3 The desired sizez of the brush (only X and Y are considered; Z is ignored).
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-- @returns bool,brush,Vector3 Success bool, then the brush, then finally the actual size of the brush generated.
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return function(size)
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local brush = {}
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local centre = (size / 2):floor()
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local minsize = math.floor(math.min(size.x, size.y) / 2)
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for y = size.y - 1, 0, -1 do
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for x = size.x - 1, 0, -1 do
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local i = y*size.x + x
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if math.floor((centre - Vector3.new(x, y, 0)):length()) < minsize then
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brush[i] = 1
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else
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brush[i] = 0
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end
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end
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end
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return true, brush, size
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end
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