/// <summary>
/// Execute the supplied <paramref name="transition" />.
/// </summary>
/// <param name="transition">
/// Transition to be executed.
/// </param>
/// <returns>
/// <see langword="true" /> if a transition to a different state was performed
/// and the new state is not the exit state,
/// <see langword="false" /> if current state remains current.
/// </returns>
/// <remarks>
/// The method returns <see langword="false" /> when transitioning to the exit state
/// to prevent the state machine from looping directly over the enter state in the same
/// update tick to allow eventual parent state machines to move on to the next state.
/// </remarks>
private bool Execute([NotNull] ITransition transition)
{
IState targetState = transition.TargetState;
if (targetState == _currentState)
{
return(false);
}
_currentState.Exit();
transition.Execute(_currentState);
Transitioning?.Invoke(_currentState, targetState);
_currentState = targetState;
_transitions.TryGetValue(_currentState, out _currentTransitions);
_currentState.Enter();
_completed = targetState == DefaultState.Exit;
return(!_completed);
}