doc/files/src/clockwise-cloud_rb.src/M000001.html

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   8   <title>more_clockwise (src/clockwise-cloud.rb)</title>
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  13   <pre><span class="ruby-comment cmt"># File src/clockwise-cloud.rb, line 31</span>
  14 <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">more_clockwise</span>(<span class="ruby-identifier">this</span>, <span class="ruby-identifier">other</span>)
  15   <span class="ruby-identifier">here</span> = <span class="ruby-identifier">this</span>.<span class="ruby-identifier">place</span>
  16   <span class="ruby-identifier">there</span> = <span class="ruby-identifier">other</span>.<span class="ruby-identifier">place</span>
  17
  18   <span class="ruby-comment cmt"># if both are on a spoke, choose the one with the lowest number (nearer the rim)</span>
  19   <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">here</span> <span class="ruby-operator">=~</span> <span class="ruby-regexp re">/.c./</span> <span class="ruby-keyword kw">and</span> <span class="ruby-identifier">there</span> <span class="ruby-operator">=~</span> <span class="ruby-regexp re">/.c./</span>
  20     <span class="ruby-comment cmt"># break ties by preferring the most clockwise arc</span>
  21     <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">here</span>[<span class="ruby-value">-1</span>] <span class="ruby-operator">==</span> <span class="ruby-identifier">there</span>[<span class="ruby-value">-1</span>]
  22       <span class="ruby-keyword kw">return</span> <span class="ruby-identifier">here</span>[<span class="ruby-value">0</span>] <span class="ruby-operator">&lt;=&gt;</span> <span class="ruby-identifier">there</span>[<span class="ruby-value">0</span>]
  23     <span class="ruby-keyword kw">else</span>
  24       <span class="ruby-keyword kw">return</span> <span class="ruby-value">-1</span> <span class="ruby-operator">*</span> (<span class="ruby-identifier">here</span>[<span class="ruby-value">-1</span>] <span class="ruby-operator">&lt;=&gt;</span> <span class="ruby-identifier">there</span>[<span class="ruby-value">-1</span>])
  25     <span class="ruby-keyword kw">end</span>
  26     <span class="ruby-comment cmt"># If one is one a spoke and the other is on the rim, choose the one on the rim</span>
  27   <span class="ruby-keyword kw">elsif</span> <span class="ruby-identifier">here</span> <span class="ruby-operator">=~</span> <span class="ruby-regexp re">/.c./</span> <span class="ruby-keyword kw">or</span> <span class="ruby-identifier">there</span> <span class="ruby-operator">=~</span> <span class="ruby-regexp re">/.c./</span>
  28     <span class="ruby-keyword kw">return</span> <span class="ruby-value">-1</span> <span class="ruby-operator">*</span> (<span class="ruby-identifier">here</span>.<span class="ruby-identifier">length</span> <span class="ruby-operator">&lt;=&gt;</span> <span class="ruby-identifier">there</span>.<span class="ruby-identifier">length</span>)
  29     <span class="ruby-comment cmt"># If one is in the 'f' rim section and the other in the 'a' rim section, choose the 'a'</span>
  30   <span class="ruby-keyword kw">elsif</span> <span class="ruby-identifier">here</span>[<span class="ruby-value">0</span>,<span class="ruby-value">1</span>] <span class="ruby-operator">==</span> <span class="ruby-value str">'a'</span> <span class="ruby-keyword kw">and</span> <span class="ruby-identifier">there</span>[<span class="ruby-value">0</span>,<span class="ruby-value">1</span>] <span class="ruby-operator">==</span> <span class="ruby-value str">'f'</span>
  31     <span class="ruby-keyword kw">return</span> <span class="ruby-value">+1</span>
  32   <span class="ruby-keyword kw">elsif</span> <span class="ruby-identifier">here</span>[<span class="ruby-value">0</span>,<span class="ruby-value">1</span>] <span class="ruby-operator">==</span> <span class="ruby-value str">'f'</span> <span class="ruby-keyword kw">and</span> <span class="ruby-identifier">there</span>[<span class="ruby-value">0</span>,<span class="ruby-value">1</span>] <span class="ruby-operator">==</span> <span class="ruby-value str">'a'</span>
  33     <span class="ruby-keyword kw">return</span> <span class="ruby-value">-1</span>
  34     <span class="ruby-comment cmt"># Otherwise, choose the one with highest arc code</span>
  35   <span class="ruby-keyword kw">else</span>
  36     <span class="ruby-keyword kw">return</span> <span class="ruby-identifier">here</span> <span class="ruby-operator">&lt;=&gt;</span> <span class="ruby-identifier">there</span>
  37   <span class="ruby-keyword kw">end</span>
  38
  39 <span class="ruby-keyword kw">end</span></pre>
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