// this class defines the Dinky instrument// the variables defined at class level are member variables//// to test this: //    > chuck dinky.ck try.ck//// NOTE (2003): in a future version of chuck...//       this class will be able to extend UGen// NOTE (2013): the above is now possible using Chugraphs,//       Chugens, or Chugins!// NOTE (2023): finally updated this example using Chugraphs // the Dinky classpublic class Dinky extends Chugraph{    // impulse to filter to dac    Impulse i => BiQuad f => Envelope e => outlet;    // set the filter's pole radius    .99 => f.prad;    // set equal gain zeros    1 => f.eqzs;    // set filter gain    .2 => f.gain;    // set the envelope    .004::second => e.duration;     public void radius( float rad )    { rad => f.prad; }     public void connect( UGen ugen )    { e => ugen; }     // t is for trigger    public void t( float freq )    {        // set the current sample/impulse        1.0 => i.next;        // set filter resonant frequency        freq => f.pfreq;        // open the envelope        e.keyOn();    }     // t is for trigger (using MIDI note numbers)    public void t( int note )    { t( Std.mtof( note ) ); }     // another lazy name: c (for close)    public void c() { e.keyOff(); }}