/// <summary>
/// Validates the transition from the current state to the nextBattleState passed in.
/// </summary>
/// <param name="nextBattleState"> The desired next battle state. </param>
/// <returns> Returns the next state or null depending on the validity of the state transition requested. </returns>
private IShowdownState ValidateStateTransition(ShowdownState.ShowdownStateType nextBattleState)
{
IShowdownState nextState = null;
if (!currentState.StateType.Equals(nextBattleState))
{
ShowdownStateTransition transition = new ShowdownStateTransition(currentState.StateType, nextBattleState);
if (!transitions.TryGetValue(transition, out nextState))
{
UnityEngine.Debug.Log("Invalid Transition from:" + currentState.StateType.ToString() + " to:" + nextBattleState.ToString());
}
}
return(nextState);
}
/// <summary>
/// A call to transition to the nextState passed in.
/// </summary>
/// <param name="nextState"> the desired state to transition to. </param>
public void TransitionToState(ShowdownState.ShowdownStateType nextState)
{
IShowdownState battleState = GetNextState(nextState);
if (battleState != null)
{
currentState.OnExit();
currentState = battleState;
currentState.OnEnter();
}
else
{
}
}
/// <summary>
/// Default constructor
/// </summary>
/// <param name="currentState"> the original state. </param>
/// <param name="nextState"> the destination state. </param>
public ShowdownStateTransition(ShowdownState.ShowdownStateType currentState, ShowdownState.ShowdownStateType nextState)
{
this.currentState = currentState;
this.nextState = nextState;
}
/// <summary>
/// Requests a next state.
/// </summary>
/// <param name="nextState"> the next state we want. </param>
/// <returns> returns a valid next state or null. </returns>
private IShowdownState GetNextState(ShowdownState.ShowdownStateType nextState)
{
return(ValidateStateTransition(nextState));
}
