updateMovementVector method
void
updateMovementVector()
Implementation
void updateMovementVector() {
final forward = (moveState.forward > 0 || (autoForward && moveState.back == 0)) ? 1 : 0;
moveVector.x = ( - moveState.left + moveState.right );
moveVector.y = ( - moveState.down + moveState.up );
moveVector.z = ( - forward + moveState.back );
}