public IAnimal FindTargetForLion(IAnimal lion)
{
Debug.Assert(lion is Lion);
var targets = new List <IAnimal>();
foreach (var animal in Database.Animals)
{
// can lion eat this animal?
if (lion.CanEat(animal))
{
targets.Add(animal);
}
}
if (targets.Count == 0)
{
return(null);
}
return(targets[Randomizer.Next(targets.Count)]);
}