/// <summary>
/// Switches to a new acitivity, initialization argument and optional transition.
/// The initialization argument is strongly typed.
/// If no transition is specified then InstantActivityTransition will be used.
/// This function will result in the target activity's Init(TArgs initArgs) function being called with the args passed in here
/// </summary>
/// <param name="initArgs">The initialization argument</param>
/// <param name="transition">The transition to use</param>
/// <typeparam name="TActivity">The target activity</typeparam>
/// <typeparam name="TInitArgs">The type of the initialization argument</typeparam>
public void SwitchActivity <TActivity, TInitArgs>(TInitArgs initArgs, IActivityTransition transition = null)
where TActivity : Component, IActivity <TInitArgs>
{
SwitchActivityInternal <TActivity>(a => a.Init(initArgs), transition);
}
private void SwitchActivityInternal <TActivity>(Action <TActivity> initActivity, IActivityTransition transition)
where TActivity : Component
{
if (transitionInProgress)
{
throw new Exception("Cannot SwitchActivity, there is an activity transition already in progress.");
}
Action startActivity = () =>
{
var newActivity = new GameObject(typeof(TActivity).Name).AddComponent <TActivity>();
newActivity.transform.SetParent(transform);
currentActivity = newActivity.gameObject;
initActivity(newActivity);
};
if (transition == null)
{
transition = new InstantActivityTransition();
}
transitionInProgress = true;
transitionController.StartActivityFunc = startActivity;
transitionController.OnComplete = () => transitionInProgress = false;
transition.Start(transitionController);
}
/// <summary>
/// Switches to a new acitivity, with optional transition.
/// If no transition is specified then InstantActivityTransition will be used.
/// This function will result in the target activity's Init() function being called
/// </summary>
/// <param name="transition">The transition to use</param>
/// <typeparam name="TActivity">The target activity</typeparam>
public void SwitchActivity <TActivity>(IActivityTransition transition = null)
where TActivity : Component, IActivity
{
SwitchActivityInternal <TActivity>(a => a.Init(), transition);
}
