/// <summary>
/// Changes the state
/// Calls exit on current state and enter of the new state is called.
/// </summary>
/// <param name="state"></param>
public void ChangeState(IUpdateableState <TEntity> state)
{
if (state == null)
{
throw new NullReferenceException("state can not be null");
}
if (CurrentState != null)
{
CurrentState.Exit(_owner);
PreviousState = CurrentState;
}
CurrentState = state;
CurrentState.Enter(_owner);
}
/// <summary>
/// Sets the current state.
/// </summary>
/// <param name="state"></param>
public void SetCurrentState(IUpdateableState <TEntity> state)
{
CurrentState = state;
}
/// <summary>
/// Set the previous state.
/// </summary>
/// <param name="state"></param>
public void SetPreviousState(IUpdateableState <TEntity> state)
{
PreviousState = state;
}
/// <summary>
/// Set global state.
/// </summary>
/// <param name="state"></param>
public void SetGlobalState(IUpdateableState <TEntity> state)
{
GlobalState = state;
}
