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<ul><li><a href="../index.html">home</a></li>
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<!--Weave of 'Faux Scenes' generated by Inweb-->
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<ul class="crumbs"><li><a href="../index.html">Home</a></li><li><a href="../intern.html">Inter Modules</a></li><li><a href="index.html">index</a></li><li><a href="index.html#2">Chapter 2: Utilities</a></li><li><b>Faux Scenes</b></li></ul></div>
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<p class="purpose">Creating a simple graph of scenes, ends and connectors.</p>
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<p class="commentary firstcommentary"><a id="SP1" class="paragraph-anchor"></a><b>§1. </b>As with <a href="2-fi.html" class="internal">Faux Instances</a>, we need to make faux scenes: these more or less
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reconstruct the original data structures in Inform, though they are much less
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annotated.
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</p>
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<pre class="definitions code-font"><span class="definition-keyword">define</span> <span class="constant-syntax">MAX_SCENE_ENDS</span><span class="plain-syntax"> </span><span class="constant-syntax">32</span><span class="plain-syntax"> </span><span class="comment-syntax"> this must exceed 31</span>
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</pre>
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<pre class="displayed-code all-displayed-code code-font">
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<span class="reserved-syntax">typedef</span><span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="reserved-syntax">simplified_scene</span><span class="plain-syntax"> {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="identifier-syntax">inter_package</span><span class="plain-syntax"> *</span><span class="identifier-syntax">pack</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">no_ends</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="reserved-syntax">simplified_end</span><span class="plain-syntax"> *</span><span class="identifier-syntax">ends</span><span class="plain-syntax">[</span><span class="constant-syntax">MAX_SCENE_ENDS</span><span class="plain-syntax">];</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">indexed_already</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">CLASS_DEFINITION</span>
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<span class="plain-syntax">} </span><span class="reserved-syntax">simplified_scene</span><span class="plain-syntax">;</span>
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<span class="reserved-syntax">typedef</span><span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="reserved-syntax">simplified_end</span><span class="plain-syntax"> {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="identifier-syntax">inter_package</span><span class="plain-syntax"> *</span><span class="identifier-syntax">end_pack</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="reserved-syntax">simplified_connector</span><span class="plain-syntax"> *</span><span class="identifier-syntax">anchor_connectors</span><span class="plain-syntax">; </span><span class="comment-syntax"> linked list</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">CLASS_DEFINITION</span>
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<span class="plain-syntax">} </span><span class="reserved-syntax">simplified_end</span><span class="plain-syntax">;</span>
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<span class="reserved-syntax">typedef</span><span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="reserved-syntax">simplified_connector</span><span class="plain-syntax"> {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="identifier-syntax">inter_package</span><span class="plain-syntax"> *</span><span class="identifier-syntax">con_pack</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="reserved-syntax">simplified_scene</span><span class="plain-syntax"> *</span><span class="identifier-syntax">connect_to</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="reserved-syntax">simplified_connector</span><span class="plain-syntax"> *</span><span class="identifier-syntax">next</span><span class="plain-syntax">; </span><span class="comment-syntax"> next in list of connectors for a scene end</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">CLASS_DEFINITION</span>
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<span class="plain-syntax">} </span><span class="reserved-syntax">simplified_connector</span><span class="plain-syntax">;</span>
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</pre>
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<ul class="endnotetexts"><li>The structure simplified_scene is accessed in 2/ir, 3/pe2 and here.</li><li>The structure simplified_end is accessed in 3/pe2 and here.</li><li>The structure simplified_connector is accessed in 3/pe2 and here.</li></ul>
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<p class="commentary firstcommentary"><a id="SP2" class="paragraph-anchor"></a><b>§2. </b>This three-deck structure of objects matches a similar hiersrchy of Inter
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packages, where <span class="extract"><span class="extract-syntax">_scene_connector</span></span> packages are inside <span class="extract"><span class="extract-syntax">_scene_end</span></span> packages
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which are inside <span class="extract"><span class="extract-syntax">_scene</span></span> packages.
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</p>
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<pre class="displayed-code all-displayed-code code-font">
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<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">FauxScenes::list_of_faux_scenes</span><button class="popup" onclick="togglePopup('usagePopup1')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup1">Usage of <span class="code-font"><span class="function-syntax">FauxScenes::list_of_faux_scenes</span></span>:<br/>Indexing API - <a href="1-ia.html#SP8">§8</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">index_session</span><span class="plain-syntax"> *</span><span class="identifier-syntax">session</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">linked_list</span><span class="plain-syntax"> *</span><span class="identifier-syntax">L</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NEW_LINKED_LIST</span><span class="plain-syntax">(</span><span class="reserved-syntax">simplified_scene</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">session</span><span class="plain-syntax">-></span><span class="element-syntax">list_of_scenes</span><span class="plain-syntax"> = </span><span class="identifier-syntax">L</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">inter_tree</span><span class="plain-syntax"> *</span><span class="identifier-syntax">I</span><span class="plain-syntax"> = </span><a href="1-ia.html#SP6" class="function-link"><span class="function-syntax">Indexing::get_tree</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">session</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">tree_inventory</span><span class="plain-syntax"> *</span><span class="identifier-syntax">inv</span><span class="plain-syntax"> = </span><a href="1-ia.html#SP6" class="function-link"><span class="function-syntax">Indexing::get_inventory</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">session</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">InterNodeList::array_sort</span><span class="plain-syntax">(</span><span class="identifier-syntax">inv</span><span class="plain-syntax">-></span><span class="identifier-syntax">scene_nodes</span><span class="plain-syntax">, </span><a href="2-fs.html#SP3" class="function-link"><span class="function-syntax">FauxScenes::scene_order</span></a><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">InterNodeList::array_sort</span><span class="plain-syntax">(</span><span class="identifier-syntax">inv</span><span class="plain-syntax">-></span><span class="identifier-syntax">rulebook_nodes</span><span class="plain-syntax">, </span><span class="identifier-syntax">MakeSynopticModuleStage::module_order</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">inter_package</span><span class="plain-syntax"> *</span><span class="identifier-syntax">scene_pack</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">LOOP_OVER_INVENTORY_PACKAGES</span><span class="plain-syntax">(</span><span class="identifier-syntax">scene_pack</span><span class="plain-syntax">, </span><span class="identifier-syntax">i</span><span class="plain-syntax">, </span><span class="identifier-syntax">inv</span><span class="plain-syntax">-></span><span class="identifier-syntax">scene_nodes</span><span class="plain-syntax">)</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">ADD_TO_LINKED_LIST</span><span class="plain-syntax">(</span><a href="2-fs.html#SP4" class="function-link"><span class="function-syntax">FauxScenes::simplified</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">I</span><span class="plain-syntax">, </span><span class="identifier-syntax">scene_pack</span><span class="plain-syntax">), </span><span class="reserved-syntax">simplified_scene</span><span class="plain-syntax">, </span><span class="identifier-syntax">L</span><span class="plain-syntax">);</span>
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<span class="plain-syntax">}</span>
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</pre>
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<p class="commentary firstcommentary"><a id="SP3" class="paragraph-anchor"></a><b>§3. </b>The following is the criterion used for sorting the scenes into their indexing
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order. The Entire Game always comes first, and then come the rest in ascending
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alphabetical order.
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</p>
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<pre class="displayed-code all-displayed-code code-font">
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<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">FauxScenes::scene_order</span><button class="popup" onclick="togglePopup('usagePopup2')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup2">Usage of <span class="code-font"><span class="function-syntax">FauxScenes::scene_order</span></span>:<br/><a href="2-fs.html#SP2">§2</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">const</span><span class="plain-syntax"> </span><span class="reserved-syntax">void</span><span class="plain-syntax"> *</span><span class="identifier-syntax">ent1</span><span class="plain-syntax">, </span><span class="reserved-syntax">const</span><span class="plain-syntax"> </span><span class="reserved-syntax">void</span><span class="plain-syntax"> *</span><span class="identifier-syntax">ent2</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">ina_entry</span><span class="plain-syntax"> *</span><span class="identifier-syntax">E1</span><span class="plain-syntax"> = (</span><span class="identifier-syntax">ina_entry</span><span class="plain-syntax"> *) </span><span class="identifier-syntax">ent1</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">ina_entry</span><span class="plain-syntax"> *</span><span class="identifier-syntax">E2</span><span class="plain-syntax"> = (</span><span class="identifier-syntax">ina_entry</span><span class="plain-syntax"> *) </span><span class="identifier-syntax">ent2</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">E1</span><span class="plain-syntax"> == </span><span class="identifier-syntax">E2</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="constant-syntax">0</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">inter_tree_node</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P1</span><span class="plain-syntax"> = </span><span class="identifier-syntax">E1</span><span class="plain-syntax">-></span><span class="identifier-syntax">node</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">inter_tree_node</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P2</span><span class="plain-syntax"> = </span><span class="identifier-syntax">E2</span><span class="plain-syntax">-></span><span class="identifier-syntax">node</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">inter_package</span><span class="plain-syntax"> *</span><span class="identifier-syntax">sc1</span><span class="plain-syntax"> = </span><span class="identifier-syntax">PackageInstruction::at_this_head</span><span class="plain-syntax">(</span><span class="identifier-syntax">P1</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">inter_package</span><span class="plain-syntax"> *</span><span class="identifier-syntax">sc2</span><span class="plain-syntax"> = </span><span class="identifier-syntax">PackageInstruction::at_this_head</span><span class="plain-syntax">(</span><span class="identifier-syntax">P2</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">Metadata::read_optional_numeric</span><span class="plain-syntax">(</span><span class="identifier-syntax">sc1</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"^is_entire_game"</span><span class="plain-syntax">)) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> -1;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">Metadata::read_optional_numeric</span><span class="plain-syntax">(</span><span class="identifier-syntax">sc2</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"^is_entire_game"</span><span class="plain-syntax">)) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="constant-syntax">1</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">SW1</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Metadata::required_textual</span><span class="plain-syntax">(</span><span class="identifier-syntax">sc1</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"^name"</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">SW2</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Metadata::required_textual</span><span class="plain-syntax">(</span><span class="identifier-syntax">sc2</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"^name"</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">Str::cmp</span><span class="plain-syntax">(</span><span class="identifier-syntax">SW1</span><span class="plain-syntax">, </span><span class="identifier-syntax">SW2</span><span class="plain-syntax">);</span>
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<span class="plain-syntax">}</span>
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</pre>
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<p class="commentary firstcommentary"><a id="SP4" class="paragraph-anchor"></a><b>§4. </b>The following returns a valid <span class="extract"><span class="extract-syntax">simplified_scene</span></span> for each <span class="extract"><span class="extract-syntax">_scene</span></span> package,
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tpgether with its connectors and ends.
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</p>
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<pre class="displayed-code all-displayed-code code-font">
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<span class="reserved-syntax">simplified_scene</span><span class="plain-syntax"> *</span><span class="function-syntax">FauxScenes::simplified</span><button class="popup" onclick="togglePopup('usagePopup3')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup3">Usage of <span class="code-font"><span class="function-syntax">FauxScenes::simplified</span></span>:<br/><a href="2-fs.html#SP2">§2</a></span></button><span class="plain-syntax">(</span><span class="identifier-syntax">inter_tree</span><span class="plain-syntax"> *</span><span class="identifier-syntax">I</span><span class="plain-syntax">, </span><span class="identifier-syntax">inter_package</span><span class="plain-syntax"> *</span><span class="identifier-syntax">sc_pack</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">simplified_scene</span><span class="plain-syntax"> *</span><span class="identifier-syntax">ssc</span><span class="plain-syntax"> = </span><span class="identifier-syntax">CREATE</span><span class="plain-syntax">(</span><span class="reserved-syntax">simplified_scene</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">ssc</span><span class="plain-syntax">-></span><span class="element-syntax">pack</span><span class="plain-syntax"> = </span><span class="identifier-syntax">sc_pack</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">ssc</span><span class="plain-syntax">-></span><span class="element-syntax">no_ends</span><span class="plain-syntax"> = </span><span class="constant-syntax">0</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">ssc</span><span class="plain-syntax">-></span><span class="element-syntax">indexed_already</span><span class="plain-syntax"> = </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">inter_package</span><span class="plain-syntax"> *</span><span class="identifier-syntax">end_pack</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">LOOP_THROUGH_SUBPACKAGES</span><span class="plain-syntax">(</span><span class="identifier-syntax">end_pack</span><span class="plain-syntax">, </span><span class="identifier-syntax">sc_pack</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"_scene_end"</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">simplified_end</span><span class="plain-syntax"> *</span><span class="identifier-syntax">se</span><span class="plain-syntax"> = </span><span class="identifier-syntax">CREATE</span><span class="plain-syntax">(</span><span class="reserved-syntax">simplified_end</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">se</span><span class="plain-syntax">-></span><span class="element-syntax">end_pack</span><span class="plain-syntax"> = </span><span class="identifier-syntax">end_pack</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">se</span><span class="plain-syntax">-></span><span class="element-syntax">anchor_connectors</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">inter_package</span><span class="plain-syntax"> *</span><span class="identifier-syntax">con_pack</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">LOOP_THROUGH_SUBPACKAGES</span><span class="plain-syntax">(</span><span class="identifier-syntax">con_pack</span><span class="plain-syntax">, </span><span class="identifier-syntax">end_pack</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"_scene_connector"</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">simplified_connector</span><span class="plain-syntax"> *</span><span class="identifier-syntax">scon</span><span class="plain-syntax"> = </span><span class="identifier-syntax">CREATE</span><span class="plain-syntax">(</span><span class="reserved-syntax">simplified_connector</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">scon</span><span class="plain-syntax">-></span><span class="element-syntax">con_pack</span><span class="plain-syntax"> = </span><span class="identifier-syntax">con_pack</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">scon</span><span class="plain-syntax">-></span><span class="element-syntax">next</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
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|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">se</span><span class="plain-syntax">-></span><span class="element-syntax">anchor_connectors</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) {</span>
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|
<span class="plain-syntax"> </span><span class="identifier-syntax">se</span><span class="plain-syntax">-></span><span class="element-syntax">anchor_connectors</span><span class="plain-syntax"> = </span><span class="identifier-syntax">scon</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> } </span><span class="reserved-syntax">else</span><span class="plain-syntax"> {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">simplified_connector</span><span class="plain-syntax"> *</span><span class="identifier-syntax">last</span><span class="plain-syntax"> = </span><span class="identifier-syntax">se</span><span class="plain-syntax">-></span><span class="element-syntax">anchor_connectors</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">while</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">last</span><span class="plain-syntax">) && (</span><span class="identifier-syntax">last</span><span class="plain-syntax">-></span><span class="element-syntax">next</span><span class="plain-syntax">)) </span><span class="identifier-syntax">last</span><span class="plain-syntax"> = </span><span class="identifier-syntax">last</span><span class="plain-syntax">-></span><span class="element-syntax">next</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">last</span><span class="plain-syntax">-></span><span class="element-syntax">next</span><span class="plain-syntax"> = </span><span class="identifier-syntax">scon</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> }</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">scon</span><span class="plain-syntax">-></span><span class="element-syntax">connect_to</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
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|
<span class="plain-syntax"> }</span>
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|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">ssc</span><span class="plain-syntax">-></span><span class="element-syntax">no_ends</span><span class="plain-syntax"> >= </span><span class="constant-syntax">MAX_SCENE_ENDS</span><span class="plain-syntax">) </span><span class="identifier-syntax">internal_error</span><span class="plain-syntax">(</span><span class="string-syntax">"too many scene ends"</span><span class="plain-syntax">);</span>
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|
<span class="plain-syntax"> </span><span class="identifier-syntax">ssc</span><span class="plain-syntax">-></span><span class="element-syntax">ends</span><span class="plain-syntax">[</span><span class="identifier-syntax">ssc</span><span class="plain-syntax">-></span><span class="element-syntax">no_ends</span><span class="plain-syntax">++] = </span><span class="identifier-syntax">se</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> }</span>
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|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">ssc</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
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<p class="commentary firstcommentary"><a id="SP5" class="paragraph-anchor"></a><b>§5. </b></p>
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<pre class="displayed-code all-displayed-code code-font">
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<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">FauxScenes::is_entire_game</span><button class="popup" onclick="togglePopup('usagePopup4')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup4">Usage of <span class="code-font"><span class="function-syntax">FauxScenes::is_entire_game</span></span>:<br/>Plot Element - <a href="3-pe2.html#SP1_1">§1.1</a>, <a href="3-pe2.html#SP1_3_1">§1.3.1</a>, <a href="3-pe2.html#SP2_1">§2.1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">simplified_scene</span><span class="plain-syntax"> *</span><span class="identifier-syntax">ssc</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">Metadata::read_optional_numeric</span><span class="plain-syntax">(</span><span class="identifier-syntax">ssc</span><span class="plain-syntax">-></span><span class="element-syntax">pack</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"^is_entire_game"</span><span class="plain-syntax">)) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
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<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">FauxScenes::recurs</span><button class="popup" onclick="togglePopup('usagePopup5')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup5">Usage of <span class="code-font"><span class="function-syntax">FauxScenes::recurs</span></span>:<br/>Plot Element - <a href="3-pe2.html#SP1_3_1_1">§1.3.1.1</a>, <a href="3-pe2.html#SP2_4">§2.4</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">simplified_scene</span><span class="plain-syntax"> *</span><span class="identifier-syntax">ssc</span><span class="plain-syntax">) {</span>
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|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">Metadata::read_optional_numeric</span><span class="plain-syntax">(</span><span class="identifier-syntax">ssc</span><span class="plain-syntax">-></span><span class="element-syntax">pack</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"^recurs"</span><span class="plain-syntax">)) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
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|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
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|
<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">FauxScenes::never_ends</span><button class="popup" onclick="togglePopup('usagePopup6')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup6">Usage of <span class="code-font"><span class="function-syntax">FauxScenes::never_ends</span></span>:<br/>Plot Element - <a href="3-pe2.html#SP2_3">§2.3</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">simplified_scene</span><span class="plain-syntax"> *</span><span class="identifier-syntax">ssc</span><span class="plain-syntax">) {</span>
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|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">Metadata::read_optional_numeric</span><span class="plain-syntax">(</span><span class="identifier-syntax">ssc</span><span class="plain-syntax">-></span><span class="element-syntax">pack</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"^never_ends"</span><span class="plain-syntax">)) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
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|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
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|
<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">FauxScenes::starts_at_start_of_play</span><button class="popup" onclick="togglePopup('usagePopup7')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup7">Usage of <span class="code-font"><span class="function-syntax">FauxScenes::starts_at_start_of_play</span></span>:<br/>Plot Element - <a href="3-pe2.html#SP1_1">§1.1</a>, <a href="3-pe2.html#SP1_3_1_4_1">§1.3.1.4.1</a>, <a href="3-pe2.html#SP2_1">§2.1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">simplified_scene</span><span class="plain-syntax"> *</span><span class="identifier-syntax">ssc</span><span class="plain-syntax">) {</span>
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|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">Metadata::read_optional_numeric</span><span class="plain-syntax">(</span><span class="identifier-syntax">ssc</span><span class="plain-syntax">-></span><span class="element-syntax">pack</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"^starts"</span><span class="plain-syntax">)) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
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<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">FauxScenes::starts_on_condition</span><button class="popup" onclick="togglePopup('usagePopup8')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup8">Usage of <span class="code-font"><span class="function-syntax">FauxScenes::starts_on_condition</span></span>:<br/>Plot Element - <a href="3-pe2.html#SP1_1">§1.1</a>, <a href="3-pe2.html#SP2_1">§2.1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">simplified_scene</span><span class="plain-syntax"> *</span><span class="identifier-syntax">ssc</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">Metadata::read_optional_numeric</span><span class="plain-syntax">(</span><span class="identifier-syntax">ssc</span><span class="plain-syntax">-></span><span class="element-syntax">pack</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"^starts_on_condition"</span><span class="plain-syntax">)) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
|
|
<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">FauxScenes::no_ends</span><button class="popup" onclick="togglePopup('usagePopup9')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup9">Usage of <span class="code-font"><span class="function-syntax">FauxScenes::no_ends</span></span>:<br/>Plot Element - <a href="3-pe2.html#SP1_3_1">§1.3.1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">simplified_scene</span><span class="plain-syntax"> *</span><span class="identifier-syntax">ssc</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">ssc</span><span class="plain-syntax">-></span><span class="element-syntax">no_ends</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
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|
<span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="function-syntax">FauxScenes::scene_name</span><button class="popup" onclick="togglePopup('usagePopup10')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup10">Usage of <span class="code-font"><span class="function-syntax">FauxScenes::scene_name</span></span>:<br/>Index Rules - <a href="2-ir.html#SP12_1">§12.1</a><br/>Plot Element - <a href="3-pe2.html#SP1_3_1_4_3">§1.3.1.4.3</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">simplified_scene</span><span class="plain-syntax"> *</span><span class="identifier-syntax">ssc</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">Metadata::required_textual</span><span class="plain-syntax">(</span><span class="identifier-syntax">ssc</span><span class="plain-syntax">-></span><span class="element-syntax">pack</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"^name"</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP6" class="paragraph-anchor"></a><b>§6. </b></p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="function-syntax">FauxScenes::end_name</span><button class="popup" onclick="togglePopup('usagePopup11')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup11">Usage of <span class="code-font"><span class="function-syntax">FauxScenes::end_name</span></span>:<br/>Plot Element - <a href="3-pe2.html#SP1_3_1_4">§1.3.1.4</a>, <a href="3-pe2.html#SP1_3_1_4_3">§1.3.1.4.3</a>, <a href="3-pe2.html#SP2_1">§2.1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">simplified_end</span><span class="plain-syntax"> *</span><span class="identifier-syntax">se</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">Metadata::required_textual</span><span class="plain-syntax">(</span><span class="identifier-syntax">se</span><span class="plain-syntax">-></span><span class="element-syntax">end_pack</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"^name"</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax">}</span>
|
|
|
|
<span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="function-syntax">FauxScenes::anchor_condition</span><button class="popup" onclick="togglePopup('usagePopup12')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup12">Usage of <span class="code-font"><span class="function-syntax">FauxScenes::anchor_condition</span></span>:<br/>Plot Element - <a href="3-pe2.html#SP1_3_1_4_2">§1.3.1.4.2</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">simplified_end</span><span class="plain-syntax"> *</span><span class="identifier-syntax">se</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">Metadata::required_textual</span><span class="plain-syntax">(</span><span class="identifier-syntax">se</span><span class="plain-syntax">-></span><span class="element-syntax">end_pack</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"^condition"</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax">}</span>
|
|
|
|
<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">FauxScenes::has_anchor_condition</span><button class="popup" onclick="togglePopup('usagePopup13')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup13">Usage of <span class="code-font"><span class="function-syntax">FauxScenes::has_anchor_condition</span></span>:<br/>Plot Element - <a href="3-pe2.html#SP1_3_1">§1.3.1</a>, <a href="3-pe2.html#SP1_3_1_4_2">§1.3.1.4.2</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">simplified_end</span><span class="plain-syntax"> *</span><span class="identifier-syntax">se</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">Str::len</span><span class="plain-syntax">(</span><a href="2-fs.html#SP6" class="function-link"><span class="function-syntax">FauxScenes::anchor_condition</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">se</span><span class="plain-syntax">)) > </span><span class="constant-syntax">0</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
|
|
<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">FauxScenes::anchor_condition_set_at</span><button class="popup" onclick="togglePopup('usagePopup14')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup14">Usage of <span class="code-font"><span class="function-syntax">FauxScenes::anchor_condition_set_at</span></span>:<br/>Plot Element - <a href="3-pe2.html#SP1_3_1_4_2">§1.3.1.4.2</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">simplified_end</span><span class="plain-syntax"> *</span><span class="identifier-syntax">se</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> (</span><span class="reserved-syntax">int</span><span class="plain-syntax">) </span><span class="identifier-syntax">Metadata::read_optional_numeric</span><span class="plain-syntax">(</span><span class="identifier-syntax">se</span><span class="plain-syntax">-></span><span class="element-syntax">end_pack</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"^at"</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax">}</span>
|
|
|
|
<span class="identifier-syntax">inter_symbol</span><span class="plain-syntax"> *</span><span class="function-syntax">FauxScenes::end_rulebook</span><button class="popup" onclick="togglePopup('usagePopup15')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup15">Usage of <span class="code-font"><span class="function-syntax">FauxScenes::end_rulebook</span></span>:<br/>Plot Element - <a href="3-pe2.html#SP1_3_1_5">§1.3.1.5</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">simplified_end</span><span class="plain-syntax"> *</span><span class="identifier-syntax">se</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">Metadata::optional_symbol</span><span class="plain-syntax">(</span><span class="identifier-syntax">se</span><span class="plain-syntax">-></span><span class="element-syntax">end_pack</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"^rulebook"</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP7" class="paragraph-anchor"></a><b>§7. </b>A connector leads, of course, to another scene. Determiming that is quite
|
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slow, but ww cache the result so that it must only be done once.
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="reserved-syntax">simplified_scene</span><span class="plain-syntax"> *</span><span class="function-syntax">FauxScenes::connects_to</span><button class="popup" onclick="togglePopup('usagePopup16')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup16">Usage of <span class="code-font"><span class="function-syntax">FauxScenes::connects_to</span></span>:<br/>Plot Element - <a href="3-pe2.html#SP1_3_1_4_3">§1.3.1.4.3</a>, <a href="3-pe2.html#SP2_5">§2.5</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">simplified_connector</span><span class="plain-syntax"> *</span><span class="identifier-syntax">scon</span><span class="plain-syntax">, </span><span class="reserved-syntax">index_session</span><span class="plain-syntax"> *</span><span class="identifier-syntax">session</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">scon</span><span class="plain-syntax">-></span><span class="element-syntax">connect_to</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">scon</span><span class="plain-syntax">-></span><span class="element-syntax">connect_to</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">inter_symbol</span><span class="plain-syntax"> *</span><span class="identifier-syntax">sc_symbol</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Metadata::optional_symbol</span><span class="plain-syntax">(</span><span class="identifier-syntax">scon</span><span class="plain-syntax">-></span><span class="element-syntax">con_pack</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"^to"</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">sc_symbol</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">inter_package</span><span class="plain-syntax"> *</span><span class="identifier-syntax">to_pack</span><span class="plain-syntax"> = </span><span class="identifier-syntax">InterPackage::container</span><span class="plain-syntax">(</span><span class="identifier-syntax">sc_symbol</span><span class="plain-syntax">-></span><span class="identifier-syntax">definition</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">linked_list</span><span class="plain-syntax"> *</span><span class="identifier-syntax">L</span><span class="plain-syntax"> = </span><a href="1-ia.html#SP8" class="function-link"><span class="function-syntax">Indexing::get_list_of_scenes</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">session</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">simplified_scene</span><span class="plain-syntax"> *</span><span class="identifier-syntax">ssc</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">LOOP_OVER_LINKED_LIST</span><span class="plain-syntax">(</span><span class="identifier-syntax">ssc</span><span class="plain-syntax">, </span><span class="reserved-syntax">simplified_scene</span><span class="plain-syntax">, </span><span class="identifier-syntax">L</span><span class="plain-syntax">)</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">ssc</span><span class="plain-syntax">-></span><span class="element-syntax">pack</span><span class="plain-syntax"> == </span><span class="identifier-syntax">to_pack</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">scon</span><span class="plain-syntax">-></span><span class="element-syntax">connect_to</span><span class="plain-syntax"> = </span><span class="identifier-syntax">ssc</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">ssc</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> }</span>
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<span class="plain-syntax"> }</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">internal_error</span><span class="plain-syntax">(</span><span class="string-syntax">"scene metadata broken: bad connector"</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
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<span class="plain-syntax">}</span>
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<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">FauxScenes::scon_end</span><button class="popup" onclick="togglePopup('usagePopup17')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup17">Usage of <span class="code-font"><span class="function-syntax">FauxScenes::scon_end</span></span>:<br/>Plot Element - <a href="3-pe2.html#SP1_3_1_4_3">§1.3.1.4.3</a>, <a href="3-pe2.html#SP2_5">§2.5</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">simplified_connector</span><span class="plain-syntax"> *</span><span class="identifier-syntax">scon</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> (</span><span class="reserved-syntax">int</span><span class="plain-syntax">) </span><span class="identifier-syntax">Metadata::read_numeric</span><span class="plain-syntax">(</span><span class="identifier-syntax">scon</span><span class="plain-syntax">-></span><span class="element-syntax">con_pack</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"^end"</span><span class="plain-syntax">);</span>
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<span class="plain-syntax">}</span>
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<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">FauxScenes::scon_at</span><button class="popup" onclick="togglePopup('usagePopup18')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup18">Usage of <span class="code-font"><span class="function-syntax">FauxScenes::scon_at</span></span>:<br/>Plot Element - <a href="3-pe2.html#SP1_3_1_4_3">§1.3.1.4.3</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">simplified_connector</span><span class="plain-syntax"> *</span><span class="identifier-syntax">scon</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> (</span><span class="reserved-syntax">int</span><span class="plain-syntax">) </span><span class="identifier-syntax">Metadata::read_numeric</span><span class="plain-syntax">(</span><span class="identifier-syntax">scon</span><span class="plain-syntax">-></span><span class="element-syntax">con_pack</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"^at"</span><span class="plain-syntax">);</span>
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<span class="plain-syntax">}</span>
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</pre>
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