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<title>Crystal Space 1.2.1: iPortalCallback Struct Reference (Crystal Space 1.2.1 Public API Reference)</title>
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<h1>iPortalCallback Struct Reference<br>
<small>
[<a class="el" href="group__engine3d.html">Crystal Space 3D Engine</a>]</small>
</h1><!-- doxytag: class="iPortalCallback" --><!-- doxytag: inherits="iBase" -->When a sector is missing this callback will be called.
<a href="#_details">More...</a>
<p>
<code>#include <<a class="el" href="portal_8h-source.html">iengine/portal.h</a>></code>
<p>
<div class="dynheader">
Inheritance diagram for iPortalCallback:</div>
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<p><center><img src="structiPortalCallback__inherit__graph.png" border="0" usemap="#iPortalCallback__inherit__map" alt="Inheritance graph"></center>
<map name="iPortalCallback__inherit__map">
<area shape="rect" href="structiBase.html" title="This is the basic interface: all other interfaces should be derived from this one..." alt="" coords="35,7,91,33"></map>
<center><font size="2">[<a href="graph_legend.html">legend</a>]</font></center></div>
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<a href="structiPortalCallback-members.html">List of all members.</a><table border="0" cellpadding="0" cellspacing="0">
<tr><td></td></tr>
<tr><td colspan="2"><br><h2>Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual bool </td><td class="memItemRight" valign="bottom"><a class="el" href="structiPortalCallback.html#ab9f0a5403ee0f6b010a4db43270beeb">Traverse</a> (<a class="el" href="structiPortal.html">iPortal</a> *portal, <a class="el" href="structiBase.html">iBase</a> *context)=0</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Traverse to the portal. <a href="#ab9f0a5403ee0f6b010a4db43270beeb"></a><br></td></tr>
</table>
<hr><a name="_details"></a><h2>Detailed Description</h2>
When a sector is missing this callback will be called.
<p>
If this callback returns false then this portal will not be traversed. Otherwise this callback has to set up the destination sector and return true. The given context will be either an instance of <a class="el" href="structiRenderView.html" title="This interface represents all information needed to render some object in a current...">iRenderView</a>, <a class="el" href="structiFrustumView.html" title="This structure represents all information needed for the frustum visibility calculator...">iFrustumView</a>, or else 0.<p>
This callback is used by:<ul>
<li><a class="el" href="structiPortal.html" title="This is the interface to the Portal objects.">iPortal</a> </li></ul>
<p>Definition at line <a class="el" href="portal_8h-source.html#l00129">129</a> of file <a class="el" href="portal_8h-source.html">portal.h</a>.</p>
<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="ab9f0a5403ee0f6b010a4db43270beeb"></a><!-- doxytag: member="iPortalCallback::Traverse" ref="ab9f0a5403ee0f6b010a4db43270beeb" args="(iPortal *portal, iBase *context)=0" -->
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<td class="memname">virtual bool iPortalCallback::Traverse </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structiPortal.html">iPortal</a> * </td>
<td class="paramname"> <em>portal</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="structiBase.html">iBase</a> * </td>
<td class="paramname"> <em>context</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td width="100%"><code> [pure virtual]</code></td>
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<div class="memdoc">
<p>
Traverse to the portal.
<p>
It is safe to delete this callback in this function.
</div>
</div><p>
<hr>The documentation for this struct was generated from the following file:<ul>
<li>iengine/<a class="el" href="portal_8h-source.html">portal.h</a></ul>
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