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  1.  
  2. DRUNKEN_BISHOP=
  3. ->key{
  4.   get_char_at_pos=->x{
  5.     middle = 4 * 17 + 8
  6.  
  7.     return 'S' if x == middle
  8.  
  9.     current_location = middle
  10.  
  11.     step_count_at_location_x = 0
  12.  
  13.     key.split(?:).flat_map{|b|(0..7).map{|i|b.to_i(16)[i]}}.each_slice(2) do |horz, vert|
  14.       if vert == 0 && current_location > 17
  15.         current_location -= 17
  16.       end
  17.       if vert == 1 && current_location < 17 * 9 - 17
  18.         current_location += 17
  19.       end
  20.  
  21.       if horz == 0 && current_location % 17 > 0
  22.         current_location -= 1
  23.       end
  24.       if horz == 1 && current_location % 17 < 16
  25.         current_location += 1
  26.       end
  27.  
  28.       step_count_at_location_x += 1 if current_location == x
  29.     end
  30.  
  31.     if current_location == x
  32.       return 'E'
  33.     else
  34.       return ' .o+=*BOX@%&#/^'[step_count_at_location_x]
  35.     end
  36.   }
  37.  
  38.   r=[z=?++?-*17+?+]
  39.  
  40.   (0...17*9).each_slice(17).map do |row|
  41.     r << ?|+row.map(&get_char_at_pos).join+?|
  42.   end
  43.   (r+[z]).join ?\n
  44. }
  45.  
  46.  
  47. require 'minitest/autorun'
  48.  
  49. describe DRUNKEN_BISHOP do
  50.   def test_case_1
  51.     assert_equal <<-EOS.chomp, DRUNKEN_BISHOP['37:e4:6a:2d:48:38:1a:0a:f3:72:6d:d9:17:6b:bd:5e']
  52. +-----------------+
  53. |                 |
  54. |                 |
  55. |          .      |
  56. |     .   o       |
  57. |o . o . S +      |
  58. |.+ + = . B .     |
  59. |o + + o B o E    |
  60. | o .   + . o     |
  61. |         .o      |
  62. +-----------------+
  63. EOS
  64.   end
  65.  
  66.   def test_case_2
  67.     assert_equal <<-EOS.chomp, DRUNKEN_BISHOP['16:27:ac:a5:76:28:2d:36:63:1b:56:4d:eb:df:a6:48']
  68. +-----------------+
  69. |        .        |
  70. |       + .       |
  71. |      . B .      |
  72. |     o * +       |
  73. |    X * S        |
  74. |   + O o . .     |
  75. |    .   E . o    |
  76. |       . . o     |
  77. |        . .      |
  78. +-----------------+
  79. EOS
  80.   end
  81.  
  82.   def test_case_3
  83.     assert_equal <<-EOS.chomp, DRUNKEN_BISHOP['b6:dd:b7:1f:bc:25:31:d3:12:f4:92:1c:0b:93:5f:4b']
  84. +-----------------+
  85. |            o.o  |
  86. |            .= E.|
  87. |             .B.o|
  88. |              .= |
  89. |        S     = .|
  90. |       . o .  .= |
  91. |        . . . oo.|
  92. |             . o+|
  93. |              .o.|
  94. +-----------------+
  95. EOS
  96.   end
  97.  
  98.   def test_case_4
  99.     assert_equal <<-EOS.chomp, DRUNKEN_BISHOP['05:1e:1e:c1:ac:b9:d1:1c:6a:60:ce:0f:77:6c:78:47']
  100. +-----------------+
  101. |       o=.       |
  102. |    o  o++E      |
  103. |   + . Ooo.      |
  104. |    + O B..      |
  105. |     = *S.       |
  106. |      o          |
  107. |                 |
  108. |                 |
  109. |                 |
  110. +-----------------+
  111. EOS
  112.   end
  113. end
  114.  
  115.  
Success #stdin #stdout 0.22s 10744KB
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Run options: --seed 34983

# Running tests:

....

Finished tests in 0.104810s, 38.1643 tests/s, 38.1643 assertions/s.

4 tests, 4 assertions, 0 failures, 0 errors, 0 skips
https://ideone.com/XR64km
language:
Ruby (ruby 2.5.5)
created:
10 years ago
visibility:
secret

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