// Slork 2013
// Week 2 ChucK Tutorial
// GameTrak / Joystick control
// Spencer Salazar - spencer@ccrma.stanford.edu

// open the joystick
Hid joystick;
joystick.openJoystick(0);
HidMsg msg;

// loop forever (or until the program is exited)
while(true)
{
    // wait for new joystick data
    joystick => now;
    
    // receive the data
    while(joystick.recv(msg))
    {
        // a button was pressed
        if(msg.type == Hid.BUTTON_DOWN)
        {
            <<< "button down:", msg.which >>>;
        }
        // a button was released
        else if(msg.type == Hid.BUTTON_UP)
        {
            <<< "button up:", msg.which >>>;
        }
        // an "axis" was moved
        // gametrak has 3 axes per string: forward/back, left/right, up/down
        // normal joysticks usually only have 2: forward/back, left/right
        else if(msg.type == Hid.AXIS_MOTION)
        {
            <<< "axis motion:", msg.which, msg.axisPosition >>>;
        }
    }
}