Golf Filter.ck

// make HidIn and HidMsg
Hid hi;
HidMsg msg;

// which joystick
1 => int device;
// get from command line
if( me.args() ) me.arg(0) => Std.atoi => device;
adc => Envelope e => dac;
adc => HPF f => Envelope ef => dac;
adc => LPF r => ef => dac;


int filterstate;
0 => filterstate;
e.keyOn();
ef.keyOff();

// open joystick 0, exit on fail
if( !hi.openJoystick( device ) ) me.exit();

<<< "Game Controller'" + hi.name() + "' ready", "" >>>;

// infinite event loop
while( true )
{
    // wait on HidIn as event
    hi => now;
    
    // messages received
    while( hi.recv( msg ) )
    {
    if(msg.isButtonDown() ){
            <<< "filter on" >>>;
            1 => filterstate;
            ef.keyOn();
            e.keyOff();
        }
    if(msg.isButtonUp() ) {
        <<< "filter off" >>>;
        0 => filterstate;
        e.keyOn();
        ef.keyOff();
        }
        // joystick axis motion
    if( msg.isAxisMotion() )
        {
        if (msg.which == 0) {
           (msg.axisPosition + 1.01)*800 => f.freq;
        }
        else if (msg.which == 2) {
            (msg.axisPosition + 1.2) * 3 => f.Q;
        }
        else if (msg.which == 3) {
            (msg.axisPosition + 1.01)*250 => r.freq;
        }
        else if (msg.which == 4) {
            (msg.axisPosition + 1.2)*3 => r.Q;
        }
       }
    }
}