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36 lines
928 B
Lua
36 lines
928 B
Lua
--Donut script by Neko_Baron - tested on RedMew
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--change these to mess with ring/shape
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local donut_radius = 1600
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local donut_width = 128
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--dont touch these
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local donut_half = donut_width * 0.5
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local x_offset = donut_radius - donut_half
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local donut_low = x_offset^2
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local donut_high = (x_offset+donut_width)^2
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function run_shape_module(event)
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local area = event.area
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local surface = event.surface
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local tiles = {}
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local top_left = area.left_top --make a more direct reference
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for x = top_left.x-1, top_left.x + 32 do
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for y = top_left.y-1, top_left.y + 32 do
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local x_off = x - donut_radius
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local distance = x_off^2 + y^2 -- we dont bother to get sqr of it, because we just want the cubed answer to compare to donut_low/high
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if distance > donut_high or distance < donut_low then
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table.insert(tiles, {name = "out-of-map", position = {x,y}})
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end
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end
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end
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surface.set_tiles(tiles)
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return true
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end
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