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[trapthecap.git] / doc / classes / Board.src / .svn / text-base / M000054.html.svn-base
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13 <pre><span class="ruby-comment cmt"># File lib/libttc.rb, line 94</span>
14 <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">initialize</span>(<span class="ruby-identifier">spokes</span>, <span class="ruby-identifier">spoke_length</span>, <span class="ruby-identifier">arc_length</span>)
15 <span class="ruby-comment cmt"># A hash of all positions, indexed by position names</span>
16 <span class="ruby-ivar">@positions</span> = <span class="ruby-constant">Hash</span>.<span class="ruby-identifier">new</span>
17 <span class="ruby-ivar">@centre</span> = <span class="ruby-constant">Position</span>.<span class="ruby-identifier">new</span>(<span class="ruby-value str">'ac'</span> <span class="ruby-operator">+</span> <span class="ruby-identifier">spoke_length</span>.<span class="ruby-identifier">to_s</span>, <span class="ruby-keyword kw">false</span>, <span class="ruby-keyword kw">false</span>)
18 <span class="ruby-ivar">@positions</span>[<span class="ruby-value str">'ac'</span> <span class="ruby-operator">+</span> <span class="ruby-identifier">spoke_length</span>.<span class="ruby-identifier">to_s</span>] = <span class="ruby-identifier">centre</span>
19 <span class="ruby-identifier">a1_corner</span> = <span class="ruby-keyword kw">nil</span>
20 <span class="ruby-identifier">end_of_previous_arc</span> = <span class="ruby-keyword kw">nil</span>
21
22 <span class="ruby-comment cmt"># Do each arc-spoke-base set</span>
23 (<span class="ruby-value">?a</span><span class="ruby-operator">...</span>(<span class="ruby-value">?a</span> <span class="ruby-operator">+</span> <span class="ruby-identifier">spokes</span>)).<span class="ruby-identifier">each</span> <span class="ruby-keyword kw">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">arc_code</span><span class="ruby-operator">|</span>
24 <span class="ruby-identifier">arc</span> = <span class="ruby-identifier">arc_code</span>.<span class="ruby-identifier">chr</span>
25 <span class="ruby-identifier">base</span> = <span class="ruby-constant">Position</span>.<span class="ruby-identifier">new</span>(<span class="ruby-identifier">arc</span>, <span class="ruby-keyword kw">false</span>, <span class="ruby-keyword kw">true</span>)
26 <span class="ruby-identifier">this_arc</span> = <span class="ruby-constant">Array</span>.<span class="ruby-identifier">new</span>
27
28 <span class="ruby-comment cmt"># build the arc</span>
29 (<span class="ruby-value">1</span><span class="ruby-operator">..</span><span class="ruby-identifier">arc_length</span>).<span class="ruby-identifier">each</span> <span class="ruby-keyword kw">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">arc_position</span><span class="ruby-operator">|</span>
30 <span class="ruby-identifier">position_name</span> = <span class="ruby-identifier">arc</span> <span class="ruby-operator">+</span> <span class="ruby-identifier">arc_position</span>.<span class="ruby-identifier">to_s</span>
31 <span class="ruby-identifier">arc_place</span> = <span class="ruby-constant">Position</span>.<span class="ruby-identifier">new</span>(<span class="ruby-identifier">position_name</span>, <span class="ruby-identifier">arc_position</span> <span class="ruby-operator">==</span> <span class="ruby-value">4</span>, <span class="ruby-keyword kw">false</span>)
32 <span class="ruby-identifier">arc_place</span>.<span class="ruby-identifier">neighbours</span> = []
33 <span class="ruby-ivar">@positions</span>[<span class="ruby-identifier">position_name</span>] = <span class="ruby-identifier">arc_place</span>
34 <span class="ruby-identifier">this_arc</span> <span class="ruby-operator">&lt;&lt;</span> <span class="ruby-identifier">arc_place</span>
35 <span class="ruby-identifier">a1_corner</span> = <span class="ruby-identifier">a1_corner</span> <span class="ruby-operator">||</span> <span class="ruby-identifier">arc_place</span>
36 <span class="ruby-keyword kw">end</span>
37 (<span class="ruby-value">0</span><span class="ruby-operator">...</span><span class="ruby-identifier">arc_length</span>).<span class="ruby-identifier">each</span> <span class="ruby-keyword kw">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">arc_position</span><span class="ruby-operator">|</span>
38 <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">arc_position</span> <span class="ruby-operator">&gt;</span> <span class="ruby-value">0</span>
39 <span class="ruby-identifier">this_arc</span>[<span class="ruby-identifier">arc_position</span>].<span class="ruby-identifier">neighbours</span> <span class="ruby-operator">&lt;&lt;</span> <span class="ruby-identifier">this_arc</span>[<span class="ruby-identifier">arc_position</span> <span class="ruby-operator">-</span> <span class="ruby-value">1</span>]
40 <span class="ruby-keyword kw">end</span>
41 <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">arc_position</span> <span class="ruby-operator">&lt;</span> (<span class="ruby-identifier">arc_length</span> <span class="ruby-operator">-</span> <span class="ruby-value">1</span>)
42 <span class="ruby-identifier">this_arc</span>[<span class="ruby-identifier">arc_position</span>].<span class="ruby-identifier">neighbours</span> <span class="ruby-operator">&lt;&lt;</span> <span class="ruby-identifier">this_arc</span>[<span class="ruby-identifier">arc_position</span> <span class="ruby-operator">+</span> <span class="ruby-value">1</span>]
43 <span class="ruby-keyword kw">end</span>
44 <span class="ruby-keyword kw">end</span>
45
46 <span class="ruby-comment cmt"># build the spoke</span>
47 <span class="ruby-identifier">this_spoke</span> = <span class="ruby-constant">Array</span>.<span class="ruby-identifier">new</span>
48 (<span class="ruby-value">1</span><span class="ruby-operator">..</span>(<span class="ruby-identifier">spoke_length</span> <span class="ruby-operator">-</span> <span class="ruby-value">1</span>)).<span class="ruby-identifier">each</span> <span class="ruby-keyword kw">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">spoke_position</span><span class="ruby-operator">|</span>
49 <span class="ruby-identifier">position_name</span> = <span class="ruby-identifier">arc</span> <span class="ruby-operator">+</span> <span class="ruby-value str">&quot;c&quot;</span> <span class="ruby-operator">+</span> <span class="ruby-identifier">spoke_position</span>.<span class="ruby-identifier">to_s</span>
50 <span class="ruby-identifier">spoke_place</span> = <span class="ruby-constant">Position</span>.<span class="ruby-identifier">new</span>(<span class="ruby-identifier">position_name</span>, <span class="ruby-identifier">spoke_position</span> <span class="ruby-operator">==</span> <span class="ruby-value">3</span>, <span class="ruby-keyword kw">false</span>)
51 <span class="ruby-identifier">spoke_place</span>.<span class="ruby-identifier">neighbours</span> = []
52 <span class="ruby-ivar">@positions</span>[<span class="ruby-identifier">position_name</span>] = <span class="ruby-identifier">spoke_place</span>
53 <span class="ruby-identifier">this_spoke</span> <span class="ruby-operator">&lt;&lt;</span> <span class="ruby-identifier">spoke_place</span>
54 <span class="ruby-keyword kw">end</span>
55 (<span class="ruby-value">0</span><span class="ruby-operator">...</span>(<span class="ruby-identifier">spoke_length</span> <span class="ruby-operator">-</span> <span class="ruby-value">1</span>)).<span class="ruby-identifier">each</span> <span class="ruby-keyword kw">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">spoke_position</span><span class="ruby-operator">|</span>
56 <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">spoke_position</span> <span class="ruby-operator">&gt;</span> <span class="ruby-value">0</span>
57 <span class="ruby-identifier">this_spoke</span>[<span class="ruby-identifier">spoke_position</span>].<span class="ruby-identifier">neighbours</span> <span class="ruby-operator">&lt;&lt;</span> <span class="ruby-identifier">this_spoke</span>[<span class="ruby-identifier">spoke_position</span> <span class="ruby-operator">-</span> <span class="ruby-value">1</span>]
58 <span class="ruby-keyword kw">end</span>
59 <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">spoke_position</span> <span class="ruby-operator">&lt;</span> <span class="ruby-identifier">spoke_length</span> <span class="ruby-operator">-</span> <span class="ruby-value">2</span>
60 <span class="ruby-identifier">this_spoke</span>[<span class="ruby-identifier">spoke_position</span>].<span class="ruby-identifier">neighbours</span> <span class="ruby-operator">&lt;&lt;</span> <span class="ruby-identifier">this_spoke</span>[<span class="ruby-identifier">spoke_position</span> <span class="ruby-operator">+</span> <span class="ruby-value">1</span>]
61 <span class="ruby-keyword kw">end</span>
62 <span class="ruby-keyword kw">end</span>
63
64 <span class="ruby-comment cmt"># tie the spoke and arc together, </span>
65 <span class="ruby-identifier">this_arc</span>[<span class="ruby-value">0</span>].<span class="ruby-identifier">neighbours</span> <span class="ruby-operator">&lt;&lt;</span> <span class="ruby-identifier">this_spoke</span>[<span class="ruby-value">0</span>]
66 <span class="ruby-identifier">this_spoke</span>[<span class="ruby-value">0</span>].<span class="ruby-identifier">neighbours</span> <span class="ruby-operator">&lt;&lt;</span> <span class="ruby-identifier">this_arc</span>[<span class="ruby-value">0</span>]
67
68 <span class="ruby-comment cmt"># tie the spoke to the centre, and</span>
69 <span class="ruby-identifier">this_spoke</span>[<span class="ruby-value">-1</span>].<span class="ruby-identifier">neighbours</span> <span class="ruby-operator">&lt;&lt;</span> <span class="ruby-ivar">@centre</span>
70 <span class="ruby-ivar">@centre</span>.<span class="ruby-identifier">neighbours</span> <span class="ruby-operator">&lt;&lt;</span> <span class="ruby-identifier">this_spoke</span>[<span class="ruby-value">-1</span>]
71
72 <span class="ruby-comment cmt"># tie the base to the arc</span>
73 <span class="ruby-identifier">base</span> = <span class="ruby-constant">Position</span>.<span class="ruby-identifier">new</span>(<span class="ruby-identifier">arc</span>, <span class="ruby-keyword kw">false</span>, <span class="ruby-keyword kw">true</span>)
74 <span class="ruby-ivar">@positions</span>[<span class="ruby-identifier">arc</span>] = <span class="ruby-identifier">base</span>
75 <span class="ruby-identifier">base</span>.<span class="ruby-identifier">neighbours</span> <span class="ruby-operator">&lt;&lt;</span> <span class="ruby-identifier">this_arc</span>[<span class="ruby-value">0</span>]
76 <span class="ruby-identifier">this_arc</span>[<span class="ruby-value">0</span>].<span class="ruby-identifier">neighbours</span> <span class="ruby-operator">&lt;&lt;</span> <span class="ruby-identifier">base</span>
77
78 <span class="ruby-comment cmt"># record the ends of the arc for tying to adjacent arcs</span>
79 <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">end_of_previous_arc</span>
80 <span class="ruby-identifier">end_of_previous_arc</span>.<span class="ruby-identifier">neighbours</span> <span class="ruby-operator">&lt;&lt;</span> <span class="ruby-identifier">this_arc</span>[<span class="ruby-value">0</span>]
81 <span class="ruby-identifier">this_arc</span>[<span class="ruby-value">0</span>].<span class="ruby-identifier">neighbours</span> <span class="ruby-operator">&lt;&lt;</span> <span class="ruby-identifier">end_of_previous_arc</span>
82 <span class="ruby-keyword kw">end</span>
83 <span class="ruby-identifier">end_of_previous_arc</span> = <span class="ruby-identifier">this_arc</span>[<span class="ruby-value">-1</span>]
84
85 <span class="ruby-keyword kw">end</span> <span class="ruby-comment cmt"># arc</span>
86
87 <span class="ruby-comment cmt"># tie both ends of the rim together </span>
88 <span class="ruby-identifier">a1_corner</span>.<span class="ruby-identifier">neighbours</span> <span class="ruby-operator">&lt;&lt;</span> <span class="ruby-identifier">end_of_previous_arc</span>
89 <span class="ruby-identifier">end_of_previous_arc</span>.<span class="ruby-identifier">neighbours</span> <span class="ruby-operator">&lt;&lt;</span> <span class="ruby-identifier">a1_corner</span>
90
91 <span class="ruby-identifier">cache_valid_moves</span>
92
93 <span class="ruby-keyword kw">end</span></pre>
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