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<title>src/Lambdabot/Plugin/Novelty/Dice.hs</title>
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<pre><a name="line-1"></a><span class='hs-comment'>-- | This module is for throwing dice for e.g. RPGs. (\@dice 3d6+2)</span>
<a name="line-2"></a>
<a name="line-3"></a><span class='hs-comment'>-- Original version copyright Einar Karttunen <ekarttun@cs.helsinki.fi> 2005-04-06.</span>
<a name="line-4"></a><span class='hs-comment'>-- Massive rewrite circa 2008-10-20 copyright James Cook <mokus@deepbondi.net></span>
<a name="line-5"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>Lambdabot</span><span class='hs-varop'>.</span><span class='hs-conid'>Plugin</span><span class='hs-varop'>.</span><span class='hs-conid'>Novelty</span><span class='hs-varop'>.</span><span class='hs-conid'>Dice</span> <span class='hs-layout'>(</span><span class='hs-varid'>dicePlugin</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-6"></a>
<a name="line-7"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Lambdabot</span><span class='hs-varop'>.</span><span class='hs-conid'>Plugin</span>
<a name="line-8"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Lambdabot</span><span class='hs-varop'>.</span><span class='hs-conid'>Util</span>
<a name="line-9"></a>
<a name="line-10"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>List</span>
<a name="line-11"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Random</span><span class='hs-varop'>.</span><span class='hs-conid'>Dice</span> <span class='hs-layout'>(</span><span class='hs-varid'>rollEm</span><span class='hs-layout'>)</span>
<a name="line-12"></a>
<a name="line-13"></a><a name="Dice"></a><span class='hs-keyword'>type</span> <span class='hs-conid'>Dice</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>ModuleT</span> <span class='hs-conid'>()</span> <span class='hs-conid'>LB</span>
<a name="line-14"></a>
<a name="line-15"></a><a name="dicePlugin"></a><span class='hs-definition'>dicePlugin</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Module</span> <span class='hs-conid'>()</span>
<a name="line-16"></a><span class='hs-definition'>dicePlugin</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>newModule</span>
<a name="line-17"></a> <span class='hs-layout'>{</span> <span class='hs-varid'>moduleCmds</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span>
<a name="line-18"></a> <span class='hs-keyglyph'>[</span> <span class='hs-layout'>(</span><span class='hs-varid'>command</span> <span class='hs-str'>"dice"</span><span class='hs-layout'>)</span>
<a name="line-19"></a> <span class='hs-layout'>{</span> <span class='hs-varid'>aliases</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span><span class='hs-str'>"roll"</span><span class='hs-keyglyph'>]</span>
<a name="line-20"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>help</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>say</span> <span class='hs-str'>"@dice <expr>. Throw random dice. <expr> is of the form 3d6+2."</span>
<a name="line-21"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>process</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>doDice</span> <span class='hs-conid'>True</span>
<a name="line-22"></a> <span class='hs-layout'>}</span>
<a name="line-23"></a> <span class='hs-keyglyph'>]</span>
<a name="line-24"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>contextual</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>doDice</span> <span class='hs-conid'>False</span>
<a name="line-25"></a> <span class='hs-layout'>}</span>
<a name="line-26"></a>
<a name="line-27"></a><a name="doDice"></a><span class='hs-definition'>doDice</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Bool</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Cmd</span> <span class='hs-conid'>Dice</span> <span class='hs-conid'>()</span>
<a name="line-28"></a><span class='hs-definition'>doDice</span> <span class='hs-varid'>printErrs</span> <span class='hs-varid'>text</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-29"></a> <span class='hs-varid'>user</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>showNick</span> <span class='hs-varop'>=<<</span> <span class='hs-varid'>getSender</span>
<a name="line-30"></a> <span class='hs-varid'>result</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>io</span> <span class='hs-layout'>(</span><span class='hs-varid'>rollEm</span> <span class='hs-varid'>text</span><span class='hs-layout'>)</span>
<a name="line-31"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>result</span> <span class='hs-keyword'>of</span>
<a name="line-32"></a> <span class='hs-conid'>Left</span> <span class='hs-varid'>err</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>if</span> <span class='hs-varid'>printErrs</span>
<a name="line-33"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>say</span> <span class='hs-layout'>(</span><span class='hs-varid'>trimError</span> <span class='hs-varid'>err</span><span class='hs-layout'>)</span>
<a name="line-34"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-35"></a> <span class='hs-conid'>Right</span> <span class='hs-varid'>str</span> <span class='hs-keyglyph'>-></span>
<a name="line-36"></a> <span class='hs-varid'>say</span> <span class='hs-layout'>(</span><span class='hs-varid'>limitStr</span> <span class='hs-num'>75</span> <span class='hs-layout'>(</span><span class='hs-varid'>user</span> <span class='hs-varop'>++</span> <span class='hs-str'>": "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>str</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-37"></a>
<a name="line-38"></a> <span class='hs-keyword'>where</span>
<a name="line-39"></a> <span class='hs-varid'>trimError</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>concat</span> <span class='hs-varop'>.</span> <span class='hs-varid'>intersperse</span> <span class='hs-str'>": "</span> <span class='hs-varop'>.</span> <span class='hs-varid'>tail</span> <span class='hs-varop'>.</span> <span class='hs-varid'>lines</span> <span class='hs-varop'>.</span> <span class='hs-varid'>show</span>
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