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- #!/usr/bin/ruby
- const dirs = Hash("-" => [1,0], "|" => [0,1], "/" => [1,1])
-
- func cuboid(nx, ny, nz) {
- say("cuboid %d %d %d:" % (nx, ny, nz))
- var(x, y, z) = (8*nx, 2*ny, 4*nz)
- var area = []
- var line = func(n, sx, sy, c) {
- var(dx, dy) = dirs{c}...;
- for i (0..n) {
- var (xi, yi) = (sx + i*dx, sy + i*dy)
- area[yi] \\= [" "]*(x+y+1)
- area[yi][xi] = (area[yi][xi] == " " ? c : '+')
- }
- }
-
- 0 .. nz-1 -> each {|i| line.call(x, 0, 4*i, "-")}
- 0 .. ny -> each {|i| line.call(x, 2*i, z + 2*i, "-")}
- 0 .. nx-1 -> each {|i| line.call(z, 8*i, 0, "|")}
- 0 .. ny -> each {|i| line.call(z, x + 2*i, 2*i, "|")}
- 0 .. nz-1 -> each {|i| line.call(y, x, 4*i, "/")}
- 0 .. nx -> each {|i| line.call(y, 8*i, z, "/")}
-
- area.reverse.each { |line|
- say line.join('')
- }
- }
-
- cuboid(2, 3, 4)
- cuboid(1, 1, 1)
- cuboid(6, 2, 1)
- cuboid(2, 4, 1)
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