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* Chickadee: (chickadee). Game programming toolkit for Guile.
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<title>The Environment (The Chickadee Game Toolkit)</title>
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<span id="The-Environment"></span><div class="header">
<p>
Previous: <a href="The-Listener.html" accesskey="p" rel="prev">The Listener</a>, Up: <a href="Audio.html" accesskey="u" rel="up">Audio</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Index.html" title="Index" rel="index">Index</a>]</p>
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<hr>
<span id="The-Environment-1"></span><h4 class="subsection">5.4.4 The Environment</h4>
<p>The environment defines global parameters that govern how sound is
processed within the 3D modeling space.
</p>
<dl>
<dt id="index-doppler_002dfactor">Procedure: <strong>doppler-factor</strong></dt>
<dd><p>Return the current doppler factor.
</p></dd></dl>
<dl>
<dt id="index-speed_002dof_002dsound">Procedure: <strong>speed-of-sound</strong></dt>
<dd><p>Return the current speed of sound.
</p></dd></dl>
<dl>
<dt id="index-distance_002dmodel">Procedure: <strong>distance-model</strong></dt>
<dd><p>Return the current distance model.
</p>
<p>Possible return values are:
</p>
<ul>
<li> <code>none</code>
</li><li> <code>inverse-distance</code>
</li><li> <code>inverse-distance-clamped</code> (the default)
</li><li> <code>linear-distance</code>
</li><li> <code>linear-distance-clamped</code>
</li><li> <code>exponent-distance</code>
</li><li> <code>exponent-distance-clamped</code>
</li></ul>
</dd></dl>
<dl>
<dt id="index-set_002ddoppler_002dfactor_0021">Procedure: <strong>set-doppler-factor!</strong> <em>doppler-factor</em></dt>
<dd><p>Change the doppler factor to <var>doppler-factor</var>.
</p></dd></dl>
<dl>
<dt id="index-set_002dspeed_002dof_002dsound_0021">Procedure: <strong>set-speed-of-sound!</strong> <em>speed-of-sound</em></dt>
<dd><p>Change the speed of sound to <var>speed-of-sound</var>.
</p></dd></dl>
<dl>
<dt id="index-set_002ddistance_002dmodel_0021">Procedure: <strong>set-distance-model!</strong> <em>distance-model</em></dt>
<dd><p>Change the distance model to <var>distance-model</var>. Valid distance
models are:
</p>
<ul>
<li> <code>none</code>
</li><li> <code>inverse-distance</code>
</li><li> <code>inverse-distance-clamped</code>
</li><li> <code>linear-distance</code>
</li><li> <code>linear-distance-clamped</code>
</li><li> <code>exponent-distance</code>
</li><li> <code>exponent-distance-clamped</code>
</li></ul>
</dd></dl>
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