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<a href="#pub-methods">Public Member Functions</a> |
<a href="classb2_ray_cast_callback-members.html">List of all members</a> </div>
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<div class="title">b2RayCastCallback Class Reference<span class="mlabels"><span class="mlabel">abstract</span></span></div> </div>
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<p><code>#include <<a class="el" href="b2_world_callbacks_8h_source.html">b2WorldCallbacks.h</a>></code></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:a658d5c8e89e0c73230cc8bddade4f3a4"><td class="memItemLeft" align="right" valign="top">virtual float32 </td><td class="memItemRight" valign="bottom"><a class="el" href="classb2_ray_cast_callback.html#a658d5c8e89e0c73230cc8bddade4f3a4">ReportFixture</a> (<a class="el" href="classb2_fixture.html">b2Fixture</a> *fixture, const <a class="el" href="structb2_vec2.html">b2Vec2</a> &point, const <a class="el" href="structb2_vec2.html">b2Vec2</a> &normal, float32 fraction)=0</td></tr>
<tr class="separator:a658d5c8e89e0c73230cc8bddade4f3a4"><td class="memSeparator" colspan="2"> </td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Callback class for ray casts. See <a class="el" href="classb2_world.html#aa9955d94a254253997daaf16ce77bab6">b2World::RayCast</a> </p>
</div><h2 class="groupheader">Member Function Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#a658d5c8e89e0c73230cc8bddade4f3a4">◆ </a></span>ReportFixture()</h2>
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<td class="memname">virtual float32 b2RayCastCallback::ReportFixture </td>
<td>(</td>
<td class="paramtype"><a class="el" href="classb2_fixture.html">b2Fixture</a> * </td>
<td class="paramname"><em>fixture</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="structb2_vec2.html">b2Vec2</a> & </td>
<td class="paramname"><em>point</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">const <a class="el" href="structb2_vec2.html">b2Vec2</a> & </td>
<td class="paramname"><em>normal</em>, </td>
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<td class="paramtype">float32 </td>
<td class="paramname"><em>fraction</em> </td>
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<td>)</td>
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<span class="mlabels"><span class="mlabel">pure virtual</span></span> </td>
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<p>Called for each fixture found in the query. You control how the ray cast proceeds by returning a float: return -1: ignore this fixture and continue return 0: terminate the ray cast return fraction: clip the ray to this point return 1: don't clip the ray and continue </p><dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">fixture</td><td>the fixture hit by the ray </td></tr>
<tr><td class="paramname">point</td><td>the point of initial intersection </td></tr>
<tr><td class="paramname">normal</td><td>the normal vector at the point of intersection </td></tr>
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</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>-1 to filter, 0 to terminate, fraction to clip the ray for closest hit, 1 to continue </dd></dl>
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<hr/>The documentation for this class was generated from the following file:<ul>
<li><a class="el" href="b2_world_callbacks_8h_source.html">b2WorldCallbacks.h</a></li>
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