/// <summary>
/// Sets the current state, use with empty ctor
/// </summary>
/// <param name="state">state to set</param>
public void SetState(State state)
{
if (state != null) state.Initialize();
_currentState = state;
}
/// <summary>
/// Constructor that defines initial state
/// </summary>
/// <param name="initialState">initial state to set</param>
public StateContext(State initialState)
{
SetState(initialState);
}