public StackingStrategy GetFlyweight(string type)
{
StackingStrategy strategy = null;
if (strategies.ContainsKey(type))
{
strategy = strategies[type];
}
else
{
switch (type)
{
case "bottomWeight":
strategy = new StackingStrategy_BottomWeight();
break;
case "pyramid":
strategy = new StackingStrategy_Pyramid();
break;
case "topple":
strategy = new StackingStrategy_Topple();
break;
default:
throw new ArgumentNullException($"{type} is not a strategy type.");
}
strategies[type] = strategy;
}
return(strategy);
}
static void Main(string[] args)
{
// Create our HeavyObjects (DO NOT MODIFY THESE VALUES)
HeavyObject lightest = new HeavyObject(10, 10, 1, 1);
HeavyObject medium = new HeavyObject(7, 7, 2, 5);
HeavyObject heavyAndSmall = new HeavyObject(5, 5, 5, 50);
// Create lists of the HeavyObjects and print them for debug purposes
HeavyObjectList listA = new HeavyObjectList();
listA.Add(heavyAndSmall);
listA.Add(medium);
listA.Add(lightest);
Console.WriteLine($"Testing First() method in ListA:");
IIterator iterator = listA.CreateIterator();
iterator.First().Print();
Console.WriteLine("\nItems in ListA:");
for (IIterator i = listA.CreateIterator(); !i.IsDone(); i.Next())
{
i.CurrentItem().Print();
}
Console.WriteLine();
HeavyObjectList listB = new HeavyObjectList();
listB.Add(medium);
listB.Add(lightest);
listB.Add(heavyAndSmall);
iterator = listB.CreateIterator();
Console.WriteLine($"Testing First() method in ListB:");
iterator.First().Print();
Console.WriteLine("\nItems in ListB:");
for (IIterator i = listB.CreateIterator(); !i.IsDone(); i.Next())
{
i.CurrentItem().Print();
}
Console.WriteLine();
HeavyObjectList listC = new HeavyObjectList();
listC.Add(lightest);
listC.Add(medium);
listC.Add(heavyAndSmall);
iterator = listC.CreateIterator();
Console.WriteLine($"Testing First() method in listC.");
iterator.First().Print();
Console.WriteLine("\nItems in ListC:");
for (IIterator i = listC.CreateIterator(); !i.IsDone(); i.Next())
{
i.CurrentItem().Print();
}
Console.WriteLine();
// Create our Flyweight Factory and create the Flyweights out of it
FlyweightFactory fw = new FlyweightFactory();
StackingStrategy bottomWeight = fw.GetFlyweight("bottomWeight");
StackingStrategy pyramid = fw.GetFlyweight("pyramid");
StackingStrategy topple = fw.GetFlyweight("topple");
// Print results
Console.WriteLine("BottomWeight - ListA: " + bottomWeight.EvaluateStack(listA));
Console.WriteLine("BottomWeight - ListB: " + bottomWeight.EvaluateStack(listB));
Console.WriteLine("BottomWeight - ListC: " + bottomWeight.EvaluateStack(listC));
Console.WriteLine();
Console.WriteLine("Pyramid - ListA: " + pyramid.EvaluateStack(listA));
Console.WriteLine("Pyramid - ListB: " + pyramid.EvaluateStack(listB));
Console.WriteLine("Pyramid - ListC: " + pyramid.EvaluateStack(listC));
Console.WriteLine();
Console.WriteLine("Topple - ListA: " + topple.EvaluateStack(listA));
Console.WriteLine("Topple - ListB: " + topple.EvaluateStack(listB));
Console.WriteLine("Topple - ListC: " + topple.EvaluateStack(listC));
}
