UNPKG

chancejs

Version:

Various pseudo-random implementations packaged with helpful random utilities

106 lines (93 loc) • 9.29 kB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
<html> <meta charset='utf-8'> <title>src/seeds/lagged_fibonnacci.coffee</title> <head> <link rel='stylesheet' media='all' href='docco.css'> <link href='http://fonts.googleapis.com/css?family=Lato:300' rel='stylesheet' type='text/css'> <script src='http://code.jquery.com/jquery-1.6.2.min.js' type='text/javascript' charset='utf-8'></script> <script src='docco.js' type='text/javascript' charset='utf-8'></script> <script> $(document).ready(function(){ $('#menu').columnview(); $('#jump_show').click(function(){ $('#jump_to').toggleClass('visible') }) var p = "src/seeds/lagged_fibonnacci.coffee".split('/') var f = p.pop() for(var i=0;i<p.length;i++){ var s = p[i] + "/" $("#jump_page div a span.label").filter(function(){ return $(this).text() == s }).parent().click() } $("#jump_page div a span.label").filter(function(){ return $(this).text() == f }).last().parent().toggleClass('active') }) </script> </head> <body> <div id='container'> <div id='jump_to'><div id='jump_page'> <ul class='menu' id='menu'> <li class='leaf'><a href='#'>src/</a><ul class='menu'><li class='leaf'><a href='src_random.html'>random.coffee</a></li><li class='leaf'><a href='#'>seeds/</a><ul class='menu'><li class='leaf'><a href='src_seeds_lagged_fibonnacci.html'>lagged_fibonnacci.coffee</a></li><li class='leaf'><a href='src_seeds_linear.html'>linear.coffee</a></li><li class='leaf'><a href='src_seeds_linear_congruential.html'>linear_congruential.coffee</a></li><li class='leaf'><a href='src_seeds_math_random.html'>math_random.coffee</a></li><li class='leaf'><a href='src_seeds_mersenne_twister.html'>mersenne_twister.coffee</a></li><li class='leaf'><a href='src_seeds_no_random.html'>no_random.coffee</a></li></ul></li></ul></li> </ul> </div> <div id='jump_show'> Jump To &hellip; </div></div> <table cellpadding='0' cellspacing='0'> <tr> <th class='docs'> <h3>src/seeds/</h3> <h1>lagged_fibonnacci.coffee</h1> </th> <th class='code'> <pre></pre> </th> </tr> <tr> <td class='docs'></td> <td class='code'><div class="highlight"><pre><span class="k">class</span> <span class="nb">LaggedFibonnacci</span> <span class="py">constructor</span><span class="o">:</span> <span class="p">(</span><span class="nv">seed</span><span class="o">=</span><span class="mi">0</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="py">@plantSeed</span> <span class="nx">seed</span> <span class="py">get</span><span class="o">:</span> <span class="o">-&gt;</span> <span class="nv">uni </span><span class="o">=</span> <span class="py">@u</span><span class="p">[</span><span class="py">@i97</span><span class="p">]</span> <span class="o">-</span> <span class="py">@u</span><span class="p">[</span><span class="py">@j97</span><span class="p">]</span> <span class="nx">uni</span> <span class="o">+=</span> <span class="mf">1.0</span> <span class="k">if</span> <span class="nx">uni</span> <span class="o">&lt;</span> <span class="mf">0.0</span> <span class="py">@u</span><span class="p">[</span><span class="py">@i97</span><span class="p">]</span> <span class="o">=</span> <span class="nx">uni</span> <span class="py">@i97</span> <span class="o">=</span> <span class="mi">96</span> <span class="k">if</span> <span class="o">--</span><span class="py">@i97</span> <span class="o">&lt;</span> <span class="mi">0</span> <span class="py">@j97</span> <span class="o">=</span> <span class="mi">96</span> <span class="k">if</span> <span class="o">--</span><span class="py">@j97</span> <span class="o">&lt;</span> <span class="mi">0</span> <span class="py">@c</span> <span class="o">-=</span> <span class="py">@cd</span> <span class="py">@c</span> <span class="o">+=</span> <span class="py">@cm</span> <span class="k">if</span> <span class="py">@c</span> <span class="o">&lt;</span> <span class="mf">0.0</span> <span class="nx">uni</span> <span class="o">-=</span> <span class="py">@c</span> <span class="nx">uni</span> <span class="o">+=</span> <span class="mf">1.0</span> <span class="k">if</span> <span class="nx">uni</span> <span class="o">&lt;</span> <span class="mf">0.0</span> <span class="nx">uni</span> <span class="py">plantSeed</span><span class="o">:</span><span class="p">(</span><span class="nv">seed</span><span class="o">=</span><span class="mi">0</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="py">@u</span> <span class="o">=</span> <span class="k">new</span> <span class="nb">Array</span> <span class="mi">97</span> <span class="nv">ij </span><span class="o">=</span> <span class="nx">seed</span> <span class="o">/</span> <span class="mi">30082</span> <span class="nv">kl </span><span class="o">=</span> <span class="nx">seed</span> <span class="o">-</span> <span class="mi">30082</span> <span class="o">*</span> <span class="nx">ij</span> <span class="nv">i </span><span class="o">=</span> <span class="p">((</span><span class="nx">ij</span> <span class="o">/</span> <span class="mi">177</span><span class="p">)</span> <span class="o">%</span> <span class="mi">177</span><span class="p">)</span> <span class="o">+</span> <span class="mi">2</span> <span class="nv">j </span><span class="o">=</span> <span class="p">(</span><span class="nx">ij</span> <span class="o">%</span> <span class="mi">177</span><span class="p">)</span> <span class="o">+</span> <span class="mi">2</span> <span class="nv">k </span><span class="o">=</span> <span class="p">((</span><span class="nx">kl</span> <span class="o">/</span> <span class="mi">169</span><span class="p">)</span> <span class="o">%</span> <span class="mi">178</span><span class="p">)</span> <span class="o">+</span> <span class="mi">1</span> <span class="nv">l </span><span class="o">=</span> <span class="nx">kl</span> <span class="o">%</span> <span class="mi">169</span> <span class="k">for</span> <span class="nx">ii</span> <span class="k">in</span> <span class="p">[</span><span class="mi">0</span><span class="p">..</span><span class="mi">96</span><span class="p">]</span> <span class="p">[</span><span class="nx">s</span><span class="p">,</span><span class="nx">t</span><span class="p">]</span> <span class="o">=</span> <span class="p">[</span><span class="mf">0.0</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">]</span> <span class="k">for</span> <span class="nx">jj</span> <span class="k">in</span> <span class="p">[</span><span class="mi">0</span><span class="p">..</span><span class="mi">23</span><span class="p">]</span> <span class="nv">m </span><span class="o">=</span> <span class="p">(((</span><span class="nx">i</span> <span class="o">*</span> <span class="nx">j</span><span class="p">)</span> <span class="o">%</span> <span class="mi">179</span><span class="p">)</span> <span class="o">*</span> <span class="nx">k</span><span class="p">)</span> <span class="o">%</span> <span class="mi">179</span> <span class="p">[</span><span class="nx">i</span><span class="p">,</span><span class="nx">j</span><span class="p">,</span><span class="nx">k</span><span class="p">]</span> <span class="o">=</span> <span class="p">[</span><span class="nx">j</span><span class="p">,</span><span class="nx">k</span><span class="p">,</span><span class="nx">m</span><span class="p">]</span> <span class="nv">l </span><span class="o">=</span> <span class="p">(</span><span class="mi">53</span> <span class="o">*</span> <span class="nx">l</span> <span class="o">+</span> <span class="mi">1</span><span class="p">)</span> <span class="o">%</span> <span class="mi">169</span> <span class="nx">s</span> <span class="o">+=</span> <span class="nx">t</span> <span class="k">if</span> <span class="p">(</span><span class="nx">l</span> <span class="o">*</span> <span class="nx">m</span><span class="p">)</span> <span class="o">%</span> <span class="mi">64</span> <span class="o">&gt;=</span> <span class="mi">32</span> <span class="nx">t</span> <span class="o">*=</span> <span class="mf">0.5</span> <span class="py">@u</span><span class="p">[</span><span class="nx">ii</span><span class="p">]</span> <span class="o">=</span> <span class="nx">s</span> <span class="py">@c</span> <span class="o">=</span> <span class="mf">362436.0</span> <span class="o">/</span> <span class="mf">16777216.0</span> <span class="py">@cd</span> <span class="o">=</span> <span class="mf">7654321.0</span> <span class="o">/</span> <span class="mf">16777216.0</span> <span class="py">@cm</span> <span class="o">=</span> <span class="mf">16777213.0</span> <span class="o">/</span> <span class="mf">16777216.0</span> <span class="py">@i97</span> <span class="o">=</span> <span class="mi">96</span> <span class="py">@j97</span> <span class="o">=</span> <span class="mi">32</span> <span class="nv">module.exports </span><span class="o">=</span> <span class="nb">LaggedFibonnacci</span> </pre></div></td> </tr> </table> </div> </body> </html>