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  1. r = 8
  2. v = 16
  3. a = (0..4).map { |i| 90 + i * 72 }
  4. d = Math::PI / 180
  5. xy = a.map { |e| [r * Math.cos(e * d), r * Math.sin(e * d)] }
  6. star_indices = [0, 2, 4, 1, 3]
  7. dv = proc { |xy1, xy2, m|
  8.   [
  9.     ((v - m) * xy1[0] + m * xy2[0]) / v,
  10.     ((v - m) * xy1[1] + m * xy2[1]) / v
  11.   ]
  12. }
  13. pt = []
  14. star_indices.each_with_index do |curr, i|
  15.   next_idx = star_indices[(i + 1) % star_indices.size]
  16.   (0..v).each do |m|
  17.     pt << dv.call(xy[curr], xy[next_idx], m)
  18.   end
  19. end
  20. pt.each { |e| p e }
  21.  
Success #stdin #stdout 0.02s 8232KB
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[4.898587196589413e-16, 8.0]
[-0.2938926261462362, 7.095491502812527]
[-0.5877852522924728, 6.1909830056250525]
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[2.351141009169892, 0.7639320225002098]
[2.0572483830236554, 1.6684405196876835]
[1.763355756877419, 2.572949016875157]
[1.4694631307311827, 3.477457514062631]
[1.1755705045849463, 4.381966011250105]
[0.8816778784387098, 5.286474508437578]
[0.5877852522924734, 6.1909830056250525]
[0.2938926261462369, 7.095491502812526]
[4.898587196589413e-16, 8.0]
https://ideone.com/cQg3nr
language:
Ruby (ruby 2.5.5)
created:
1 day ago
visibility:
public

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