public StoryPlot FormAlliance(Alliance alliance)
{
if (alliance.Mage1 == null || alliance.Mage2 == null)
{
throw new ArgumentException("An alliance's mages cannot be null");
}
if (MagesWithNoAlliances.Contains(alliance.Mage1) && MagesWithNoAlliances.Contains(alliance.Mage2))
{
MagesWithNoAlliances.Remove(alliance.Mage1);
MagesWithNoAlliances.Remove(alliance.Mage2);
Alliances.Add(alliance);
return(new StoryPlot($"{alliance.Mage1.Name} and {alliance.Mage2.Name} have formed an alliance"));
}
else
{
throw new ArgumentException("Mages must be in the list of MagesWithNoAlliance to form an alliance");
}
}
public StoryPlot BreakAlliance(Alliance alliance)
{
if (Alliances.Count != 0)
{
if (Alliances.Remove(alliance))
{
MagesWithNoAlliances.Add(alliance.Mage1);
MagesWithNoAlliances.Add(alliance.Mage2);
var sp = new StoryPlot();
sp.PlotEvents.Add("Alliance is broken");
return(sp);
}
else
{
//if the alliance we want to break does not exist in the list of alliances
return(null);
}
}
else
{
return(null);
}
}