 a Sound at the call time.</p></div></div><div class="field "><a name="play"></a><h3 class="anchor"><code><a href="#play"><span class="identifier">play</span></a>(<span style="white-space:nowrap">sound:<a class="type" title="hxd.res.Sound" href="../../hxd/res/Sound.html">Sound</a>,</span> <span style="white-space:nowrap">?channelGroup:<a class="type" title="hxd.snd.ChannelGroup" href="../../hxd/snd/ChannelGroup.html">ChannelGroup</a>,</span> <span style="white-space:nowrap">?soundGroup:<a class="type" title