/// <summary>
///
/// </summary>
/// <param name="gameTime"></param>
/// <returns></returns>
public override bool Act(GameTime gameTime)
{
if (hasCompleted)
{
// Nothing left to do
return(true);
}
if (!hasBegan)
{
OnBegin();
hasBegan = true;
}
TimeElapsed += (float)gameTime.ElapsedGameTime.TotalMilliseconds;
hasCompleted = (TimeElapsed >= Duration);
float percent;
if (hasCompleted)
{
percent = 1;
}
else
{
percent = TimeElapsed / Duration;
if (Ease != null)
{
percent = Ease.Apply(percent);
}
}
Update(Reverse ? 1 - percent : percent);
if (hasCompleted)
{
OnCompleted();
}
return(hasCompleted);
}
