void MxGamePadDX::processSticks( const DIJOYSTATE2& devState, const double deltaSeconds )
{
float x, y;
// Left stick: Move.
// Normalize values to range -1.0 to 1.0.
// These are units to move in world coordinates per event or per frame.
x = normalizeAxisValue( devState.lX );
y = normalizeAxisValue( devState.lY );
setLeftStick( x, y, deltaSeconds );
// Right stick: Rotate.
// Base class angle values are in degrees. By calling
// normalizeAxisValue, we pass in -1 to 1 degrees.
// Compensate for rotation as well:
// x value around up vector, positive values counterclockwise
// y value around right/cross vector, positive values counterclockwise
// NOTE .lZ is positive when pulled back. This is the opposite of
// the left gamepad stick.
x = -normalizeAxisValue( devState.lRz );
y = normalizeAxisValue( devState.lZ );
setRightStick( x, y, deltaSeconds );
}
void GamepadDeviceLinux::updateForEvent(struct js_event event)
{
if (!(event.type & JS_EVENT_AXIS || event.type & JS_EVENT_BUTTON))
return;
// Mark the device as connected only if it is not yet connected, the event is not an initialization
// and the value is not 0 (indicating a genuine interaction with the device).
if (!m_connected && !(event.type & JS_EVENT_INIT) && event.value)
m_connected = true;
if (event.type & JS_EVENT_AXIS)
m_axes[event.number] = normalizeAxisValue(event.value);
else if (event.type & JS_EVENT_BUTTON)
m_buttons[event.number] = normalizeButtonValue(event.value);
m_lastTimestamp = event.time;
}
