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75 lines
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HTML
75 lines
5.9 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<head>
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<title>3/sr</title>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<meta http-equiv="Content-Language" content="en-gb">
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<link href="inweb.css" rel="stylesheet" rev="stylesheet" type="text/css">
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</head>
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<body>
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<!--Weave of '3/prs' generated by 7-->
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<ul class="crumbs"><li><a href="../webs.html">★</a></li><li><a href="index.html">if</a></li><li><a href="index.html#3">Chapter 3: Space and Time</a></li><li><b>Persons</b></li></ul><p class="purpose">A plugin giving minimal support for switchable devices.</p>
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<p class="inwebparagraph"><a id="SP1"></a><b>§1. </b>The Persons plugin does just one thing: it applies an indicator property
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to things of the kind "animate", and a blank "before" property. This used
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to be accomplished by the Standard Rules in a clumsy sort of way (with a
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direct I6 code injection), but in the age of Inter we want to avoid that
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sort of tomfoolery.
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</p>
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<pre class="display">
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<span class="identifier">property</span><span class="plain"> *</span><span class="identifier">P_animate</span><span class="plain"> = </span><span class="identifier">NULL</span><span class="plain">;</span>
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<span class="identifier">property</span><span class="plain"> *</span><span class="identifier">P_before</span><span class="plain"> = </span><span class="identifier">NULL</span><span class="plain">;</span>
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</pre>
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<p class="inwebparagraph"></p>
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<p class="inwebparagraph"><a id="SP2"></a><b>§2. </b></p>
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<pre class="display">
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<span class="reserved">void</span><span class="plain"> </span><span class="functiontext">PL::Persons::start</span><span class="plain">(</span><span class="reserved">void</span><span class="plain">) {</span>
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<span class="identifier">PLUGIN_REGISTER</span><span class="plain">(</span><span class="identifier">PLUGIN_COMPLETE_MODEL</span><span class="plain">, </span><span class="functiontext">PL::Persons::IF_complete_model</span><span class="plain">);</span>
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<span class="plain">}</span>
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</pre>
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<p class="inwebparagraph"></p>
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<p class="endnote">The function PL::Persons::start appears nowhere else.</p>
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<p class="inwebparagraph"><a id="SP3"></a><b>§3. </b></p>
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<pre class="display">
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<span class="reserved">int</span><span class="plain"> </span><span class="functiontext">PL::Persons::IF_complete_model</span><span class="plain">(</span><span class="reserved">int</span><span class="plain"> </span><span class="identifier">stage</span><span class="plain">) {</span>
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<span class="reserved">if</span><span class="plain"> ((</span><span class="identifier">stage</span><span class="plain"> == 3) && (</span><span class="identifier">K_person</span><span class="plain">)) {</span>
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<span class="identifier">P_animate</span><span class="plain"> = </span><span class="identifier">Properties::EitherOr::new_nameless</span><span class="plain">(</span><span class="identifier">L</span><span class="string">"animate"</span><span class="plain">);</span>
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<span class="identifier">Properties::EitherOr::implement_as_attribute</span><span class="plain">(</span><span class="identifier">P_animate</span><span class="plain">, </span><span class="identifier">TRUE</span><span class="plain">);</span>
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<span class="identifier">P_before</span><span class="plain"> = </span><span class="identifier">Properties::Valued::new_nameless</span><span class="plain">(</span><span class="identifier">I</span><span class="string">"before"</span><span class="plain">, </span><span class="identifier">K_value</span><span class="plain">);</span>
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<span class="identifier">instance</span><span class="plain"> *</span><span class="identifier">I</span><span class="plain">;</span>
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<span class="identifier">LOOP_OVER_OBJECT_INSTANCES</span><span class="plain">(</span><span class="identifier">I</span><span class="plain">)</span>
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<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">Instances::of_kind</span><span class="plain">(</span><span class="identifier">I</span><span class="plain">, </span><span class="identifier">K_person</span><span class="plain">)) {</span>
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<span class="identifier">Properties::EitherOr::assert</span><span class="plain">(</span>
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<span class="identifier">P_animate</span><span class="plain">, </span><span class="identifier">Instances::as_subject</span><span class="plain">(</span><span class="identifier">I</span><span class="plain">), </span><span class="identifier">TRUE</span><span class="plain">, </span><span class="identifier">CERTAIN_CE</span><span class="plain">);</span>
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<span class="identifier">Properties::Valued::assert</span><span class="plain">(</span><span class="identifier">P_before</span><span class="plain">, </span><span class="identifier">Instances::as_subject</span><span class="plain">(</span><span class="identifier">I</span><span class="plain">),</span>
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<span class="identifier">Rvalues::from_iname</span><span class="plain">(</span><span class="identifier">Hierarchy::find</span><span class="plain">(</span><span class="identifier">NULL_HL</span><span class="plain">)), </span><span class="identifier">CERTAIN_CE</span><span class="plain">);</span>
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<span class="plain">}</span>
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<span class="plain">}</span>
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<span class="reserved">return</span><span class="plain"> </span><span class="identifier">FALSE</span><span class="plain">;</span>
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<span class="plain">}</span>
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</pre>
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<p class="inwebparagraph"></p>
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<p class="endnote">The function PL::Persons::IF_complete_model is used in <a href="#SP2">§2</a>.</p>
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<hr class="tocbar">
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<ul class="toc"><li><a href="3-sr.html">Back to 'Spatial Relations'</a></li><li><a href="3-tp.html">Continue with 'The Player'</a></li></ul><hr class="tocbar">
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<!--End of weave-->
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</body>
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</html>
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