// This method handles the state updates that can be caused by key press
// events. Key events may mean different things depending on what has
// come before, to support this concept this method takes an opaque
// context object as a parameter and returns an updated version. This
// context should be set to null for the first event then should be set
// to the last value returned for subsequent events.
protected object ProcessKeyEvent(KeyGameEvent ev, object context)
{
if (ev.Up)
{
// If it is a key up on the fire key
// make sure we mute the associated sound
if (ev.KeyCode == Keycode.DpadCenter)
{
return(null);
}
}
else
{
// If it is a key down on the fire key start playing the sound and
// update the context to indicate that a key has been
// pressed and to ignore further presses
if (ev.KeyCode == Keycode.DpadCenter && (context == null))
{
return(ev);
}
}
// Return the context unchanged
return(context);
}
// This method handles the state updates that can be caused by key press
// events. Key events may mean different things depending on what has
// come before, to support this concept this method takes an opaque
// context object as a parameter and returns an updated version. This
// context should be set to null for the first event then should be set
// to the last value returned for subsequent events.
protected object ProcessKeyEvent(KeyGameEvent ev, object context)
{
if (ev.Up) {
// If it is a key up on the fire key
// make sure we mute the associated sound
if (ev.KeyCode == Keycode.DpadCenter)
return null;
} else {
// If it is a key down on the fire key start playing the sound and
// update the context to indicate that a key has been
// pressed and to ignore further presses
if (ev.KeyCode == Keycode.DpadCenter && (context == null))
return ev;
}
// Return the context unchanged
return context;
}