/// <summary>
/// Gets and sets a state to Off and invokes the OnStateDeactivated event. Setting a
/// state off changes the state value to 0.
/// </summary>
/// <param name="stateName">The name of the state to set to off</param>
/// <returns>The state that was set to off</returns>
public InteractionState SetStateOff(string stateName)
{
InteractionState state = GetState(stateName);
if (state != null)
{
// Only update the state value and invoke events if InteractiveElement is Active
if (state.Value != 0 && InteractiveElement.Active)
{
state.Value = 0;
state.Active = false;
// If the only state in active states is going to be removed, then activate the default state
if (activeStates.Count == 1 && activeStates.First() == state)
{
SetStateOn(defaultStateName);
}
// We need to save the last state active state so we can add transitions
OnStateDeactivated.Invoke(state, activeStates.Last());
activeStates.Remove(state);
}
}
else
{
Debug.LogError($"The {stateName} state is not being tracked, add this state using AddState(state) to set it");
}
return(state);
}
// Add listeners to the OnStateActivated and OnStateDeactivated events
private void AddStateEventListeners()
{
// Add listeners to invoke a state event.
OnStateActivated.AddListener((state) =>
{
// If the event configuration for a state is of type StateEvents, this means that the state
// does not have associated dynamic event data. Therefore, the state event can be invoked when
// the state value changes without passing in event data.
if (state.EventConfiguration is StateEvents)
{
EventReceiverManager.InvokeStateEvent(state.Name);
}
});
OnStateDeactivated.AddListener((previousState, currentState) =>
{
if (previousState.EventConfiguration is StateEvents)
{
EventReceiverManager.InvokeStateEvent(previousState.Name);
}
});
}
