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<title>Class: Script</title>
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<div id="classHeader">
<table class="header-table">
<tr class="top-aligned-row">
<td><strong>Class</strong></td>
<td class="class-name-in-header">Script</td>
</tr>
<tr class="top-aligned-row">
<td><strong>In:</strong></td>
<td>
<a href="../files/lib/core/script_rb.html">
lib/core/script.rb
</a>
<br />
</td>
</tr>
<tr class="top-aligned-row">
<td><strong>Parent:</strong></td>
<td>
<a href="Root.html">
Root
</a>
</td>
</tr>
</table>
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<!-- banner header -->
<div id="bodyContent">
<div id="contextContent">
<div id="diagram">
<map id="map" name="map">
<area shape="rect" coords="5,101,77,149" href="Script.html" alt="Script
" />
<area shape="rect" coords="5,5,77,53" href="Root.html" alt="Root
" />
</map>
<img src="../dot/f_15.png" usemap="#map" border="0" alt="dot/f_15.png">
</div>
<div id="description">
<p>
The <a href="Script.html">Script</a> class defines te characteristic of an
executable program.
</p>
</div>
</div>
<div id="method-list">
<h3 class="section-bar">Methods</h3>
<div class="name-list">
<a href="#M000048">compile</a>
<a href="#M000049">execute</a>
<a href="#M000047">load</a>
<a href="#M000046">new</a>
</div>
</div>
</div>
<!-- if includes -->
<div id="section">
<div id="attribute-list">
<h3 class="section-bar">Attributes</h3>
<div class="name-list">
<table>
<tr class="top-aligned-row context-row">
<td class="context-item-name">prog</td>
<td class="context-item-value"> [RW] </td>
<td class="context-item-desc"></td>
</tr>
</table>
</div>
</div>
<!-- if method_list -->
<div id="methods">
<h3 class="section-bar">Public Class methods</h3>
<div id="method-M000046" class="method-detail">
<a name="M000046"></a>
<div class="method-heading">
<a href="#M000046" class="method-signature">
<span class="method-name">new</span><span class="method-args">(name, owner, language)</span>
</a>
</div>
<div class="method-description">
<p>
Create a <a href="Script.html#M000046">new</a> <a
href="Script.html">Script</a>
</p>
<dl>
<dt><tt>name</tt></dt><dd>The filename of the script
</dd>
<dt><tt>owner</tt></dt><dd>The owner id of this script
</dd>
<dt><tt>language</tt></dt><dd>The language of the script
</dd>
<dt><tt>return</tt></dt><dd>A handle to the <a href="Script.html#M000046">new</a> Object
</dd>
</dl>
<p><a class="source-toggle" href="#"
onclick="toggleCode('M000046-source');return false;">[Source]</a></p>
<div class="method-source-code" id="M000046-source">
<pre>
<span class="ruby-comment cmt"># File lib/core/script.rb, line 33</span>
<span class="ruby-keyword kw">def</span> <span class="ruby-identifier">initialize</span>(<span class="ruby-identifier">name</span>, <span class="ruby-identifier">owner</span>, <span class="ruby-identifier">language</span>)
<span class="ruby-keyword kw">super</span>(<span class="ruby-identifier">name</span>, <span class="ruby-identifier">owner</span>)
<span class="ruby-keyword kw">self</span>.<span class="ruby-identifier">language</span> = <span class="ruby-identifier">language</span>
<span class="ruby-ivar">@prog</span> = <span class="ruby-keyword kw">nil</span>
<span class="ruby-keyword kw">end</span>
</pre>
</div>
</div>
</div>
<h3 class="section-bar">Public Instance methods</h3>
<div id="method-M000048" class="method-detail">
<a name="M000048"></a>
<div class="method-heading">
<a href="#M000048" class="method-signature">
<span class="method-name">compile</span><span class="method-args">()</span>
</a>
</div>
<div class="method-description">
<p>
Compile a program
</p>
<dl>
<dt><tt>return</tt></dt><dd>success or failure
</dd>
</dl>
<p><a class="source-toggle" href="#"
onclick="toggleCode('M000048-source');return false;">[Source]</a></p>
<div class="method-source-code" id="M000048-source">
<pre>
<span class="ruby-comment cmt"># File lib/core/script.rb, line 60</span>
<span class="ruby-keyword kw">def</span> <span class="ruby-identifier">compile</span>
<span class="ruby-keyword kw">case</span> <span class="ruby-identifier">language</span>
<span class="ruby-keyword kw">when</span> <span class="ruby-identifier">:boolexp</span>
<span class="ruby-keyword kw">true</span>
<span class="ruby-keyword kw">when</span> <span class="ruby-identifier">:fart</span>
<span class="ruby-ivar">@prog</span> = <span class="ruby-constant">Farts</span><span class="ruby-operator">::</span><span class="ruby-constant">Parser</span>.<span class="ruby-identifier">new</span>.<span class="ruby-identifier">parse</span>(<span class="ruby-identifier">src</span>)
<span class="ruby-identifier">log</span>.<span class="ruby-identifier">info</span> <span class="ruby-node">"Compile of FART program - #{name}"</span>
<span class="ruby-keyword kw">true</span>
<span class="ruby-keyword kw">else</span>
<span class="ruby-keyword kw">false</span>
<span class="ruby-keyword kw">end</span>
<span class="ruby-keyword kw">rescue</span> <span class="ruby-constant">Exception</span>
<span class="ruby-identifier">log</span>.<span class="ruby-identifier">error</span> <span class="ruby-identifier">$!</span>
<span class="ruby-ivar">@prog</span> = <span class="ruby-keyword kw">nil</span>
<span class="ruby-keyword kw">false</span>
<span class="ruby-keyword kw">end</span>
</pre>
</div>
</div>
</div>
<div id="method-M000049" class="method-detail">
<a name="M000049"></a>
<div class="method-heading">
<a href="#M000049" class="method-signature">
<span class="method-name">execute</span><span class="method-args">(ev)</span>
</a>
</div>
<div class="method-description">
<p>
Execute a program
</p>
<dl>
<dt><tt>return</tt></dt><dd>success or failure
</dd>
</dl>
<p><a class="source-toggle" href="#"
onclick="toggleCode('M000049-source');return false;">[Source]</a></p>
<div class="method-source-code" id="M000049-source">
<pre>
<span class="ruby-comment cmt"># File lib/core/script.rb, line 79</span>
<span class="ruby-keyword kw">def</span> <span class="ruby-identifier">execute</span>(<span class="ruby-identifier">ev</span>)
<span class="ruby-keyword kw">case</span> <span class="ruby-identifier">language</span>
<span class="ruby-keyword kw">when</span> <span class="ruby-identifier">:boolexp</span>
<span class="ruby-identifier">actor</span> = <span class="ruby-identifier">get_object</span>(<span class="ruby-identifier">ev</span>.<span class="ruby-identifier">from</span>)
<span class="ruby-constant">BoolExpParser</span>.<span class="ruby-identifier">new</span>(<span class="ruby-identifier">actor</span>).<span class="ruby-identifier">parse</span>(<span class="ruby-identifier">src</span>)
<span class="ruby-keyword kw">when</span> <span class="ruby-identifier">:fart</span>
<span class="ruby-identifier">vars</span> = {}
<span class="ruby-identifier">vars</span>[<span class="ruby-value str">'actor'</span>] = <span class="ruby-identifier">get_object</span>(<span class="ruby-identifier">ev</span>.<span class="ruby-identifier">from</span>)
<span class="ruby-identifier">vars</span>[<span class="ruby-value str">'this'</span>] = <span class="ruby-identifier">get_object</span>(<span class="ruby-identifier">ev</span>.<span class="ruby-identifier">to</span>)
<span class="ruby-keyword kw">if</span> <span class="ruby-identifier">ev</span>.<span class="ruby-identifier">msg</span>.<span class="ruby-identifier">kind_of?</span>(<span class="ruby-constant">GameObject</span>)
<span class="ruby-identifier">vars</span>[<span class="ruby-value str">'args'</span>] = <span class="ruby-identifier">get_object</span>(<span class="ruby-identifier">ev</span>.<span class="ruby-identifier">msg</span>)
<span class="ruby-keyword kw">else</span>
<span class="ruby-identifier">vars</span>[<span class="ruby-value str">'args'</span>] = <span class="ruby-identifier">ev</span>.<span class="ruby-identifier">msg</span>
<span class="ruby-keyword kw">end</span>
<span class="ruby-identifier">load</span> <span class="ruby-keyword kw">if</span> <span class="ruby-operator">!</span><span class="ruby-ivar">@prog</span>
<span class="ruby-identifier">compile</span> <span class="ruby-keyword kw">if</span> <span class="ruby-operator">!</span><span class="ruby-ivar">@prog</span>
<span class="ruby-ivar">@prog</span> <span class="ruby-operator">?</span> <span class="ruby-ivar">@prog</span>.<span class="ruby-identifier">execute</span>(<span class="ruby-identifier">vars</span>) <span class="ruby-operator">:</span> <span class="ruby-keyword kw">false</span>
<span class="ruby-keyword kw">else</span>
<span class="ruby-keyword kw">false</span>
<span class="ruby-keyword kw">end</span>
<span class="ruby-keyword kw">rescue</span> <span class="ruby-constant">Exception</span>
<span class="ruby-identifier">log</span>.<span class="ruby-identifier">error</span> <span class="ruby-identifier">$!</span>
<span class="ruby-keyword kw">false</span>
<span class="ruby-keyword kw">end</span>
</pre>
</div>
</div>
</div>
<div id="method-M000047" class="method-detail">
<a name="M000047"></a>
<div class="method-heading">
<a href="#M000047" class="method-signature">
<span class="method-name">load</span><span class="method-args">(str=nil)</span>
</a>
</div>
<div class="method-description">
<p>
Load a program
</p>
<dl>
<dt><tt>return</tt></dt><dd>success or failure
</dd>
</dl>
<p><a class="source-toggle" href="#"
onclick="toggleCode('M000047-source');return false;">[Source]</a></p>
<div class="method-source-code" id="M000047-source">
<pre>
<span class="ruby-comment cmt"># File lib/core/script.rb, line 41</span>
<span class="ruby-keyword kw">def</span> <span class="ruby-identifier">load</span>(<span class="ruby-identifier">str</span>=<span class="ruby-keyword kw">nil</span>)
<span class="ruby-keyword kw">case</span> <span class="ruby-identifier">language</span>
<span class="ruby-keyword kw">when</span> <span class="ruby-identifier">:boolexp</span>
<span class="ruby-keyword kw">self</span>.<span class="ruby-identifier">src</span> = <span class="ruby-identifier">str</span>
<span class="ruby-identifier">log</span>.<span class="ruby-identifier">info</span> <span class="ruby-node">"Load of BoolExp program - #{name}"</span>
<span class="ruby-keyword kw">true</span>
<span class="ruby-keyword kw">when</span> <span class="ruby-identifier">:fart</span>
<span class="ruby-constant">File</span>.<span class="ruby-identifier">open</span>(<span class="ruby-node">"farts/#{name}.fart"</span>) {<span class="ruby-operator">|</span><span class="ruby-identifier">f</span><span class="ruby-operator">|</span>
<span class="ruby-keyword kw">self</span>.<span class="ruby-identifier">src</span> = <span class="ruby-identifier">f</span>.<span class="ruby-identifier">read</span>
}
<span class="ruby-identifier">log</span>.<span class="ruby-identifier">info</span> <span class="ruby-node">"Load of FART program - #{name}"</span>
<span class="ruby-keyword kw">true</span>
<span class="ruby-keyword kw">else</span>
<span class="ruby-keyword kw">false</span>
<span class="ruby-keyword kw">end</span>
<span class="ruby-keyword kw">end</span>
</pre>
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