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<a name="Playing-Sound"></a>
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<h3 class="subsection"> 4.17.2 Playing a Sound </h3>

<a name="1"></a>
<h4 class="subsubheading"> Playing a Sound Once </h4>

<p>You can create more than one source to have the same sound played
multiple times at the same time. For instance if you have a shooting
sound and you want your players to shoot at the same time and have the
correct number of shooting sounds.
</p>
<table><tr><td>&nbsp;</td><td><pre class="example">#include &quot;isndsys/ss_source.h&quot;
#include &quot;isndsys/ss_loader.h&quot;
#include &quot;isndsys/ss_renderer.h&quot;
#include &quot;isndsys/ss_manager.h&quot;
#include &quot;imap/loader.h&quot;

...

if (!csInitializer::RequestPlugins(object_reg,
...
  CS_REQUEST_PLUGIN(&quot;crystalspace.sndsys.renderer.software&quot;,
    iSndSysRenderer),
  CS_REQUEST_LEVELLOADER),
  CS_REQUEST_END))
...

  csRef&lt;iLoader&gt; loader = csQueryRegistry&lt;iLoader&gt; (GetObjectRegistry());
  if (!loader) ReportError(&quot;Failed to locate Loader!&quot;);

  csRef&lt;iSndSysRenderer&gt; sndrenderer = csQueryRegistry&lt;iSndSysRenderer&gt; (GetObjectRegistry());
  if (!sndrenderer) ReportError(&quot;Failed to locate Sound renderer!&quot;); 
  
  csRef&lt;iSndSysWrapper&gt; w_boom = loader-&gt;LoadSoundWrapper(&quot;buzz&quot;,&quot;/lib/std/loopbzzt.wav&quot;);
  if(!w_boom) ReportError(&quot;No Wrapper&quot;);

  csRef&lt;iSndSysData&gt; snddata = w_boom-&gt;GetData();
  if(!snddata) ReportError(&quot;No Sound Data&quot;);

  csRef&lt;iSndSysStream&gt; sndstream = sndrenderer-&gt;CreateStream (snddata, CS_SND3D_ABSOLUTE);
  if(!sndstream) ReportError(&quot;No Stream&quot;);
  
  sndstream-&gt;SetLoopState (CS_SNDSYS_STREAM_DONTLOOP);
  sndstream-&gt;Unpause ();
  
  csRef&lt;iSndSysSource&gt; sndsrc = sndrenderer-&gt;CreateSource (sndstream);
  if(!sndsrc)ReportError(&quot;No Source&quot;);

  sndsrc-&gt;SetVolume( 1.0 );

</pre></td></tr></table>
<a name="2"></a>
<h4 class="subsubheading"> Looping Background Music </h4>

<p>Here is how you can specify a looping sound:
</p>
<table><tr><td>&nbsp;</td><td><pre class="example">  sndstream-&gt;SetLoopState (CS_SNDSYS_STREAM_DONTLOOP);
  sndstream-&gt;Unpause ();
</pre></td></tr></table>


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