public NinjaDescription GetLastDescription(NinjaDescription current)
{
currentDescriptions.Remove(current);
var newDescription = ninjaBank.GetPreviousDescription(current);
while (currentDescriptions.Contains(newDescription))
{
newDescription = ninjaBank.GetPreviousDescription(newDescription);
}
currentDescriptions.Add(newDescription);
return(newDescription);
}
public NinjaDescription GetPreviousDescription(NinjaDescription current)
{
var index = Array.IndexOf(ninjaDescriptions, current);
return(index == 0 ? ninjaDescriptions[Count - 1] : ninjaDescriptions[index - 1]);
}
public NinjaDescription GetNextDescription(NinjaDescription current)
{
var index = Array.IndexOf(ninjaDescriptions, current);
return(ninjaDescriptions[(index + 1) % Count]);
}