public IEnumerable <Toot> Load(bool hasFederated, int take = int.MaxValue)
{
var accessors = new List <ITootAccessor>
{
new TootLocal()
};
if (hasFederated)
{
accessors.AddRange(_federates.Select(f => new TootRemote(f) as ITootAccessor));
}
#if NET35
var sync = new object();
var toots = new List <Toot>();
var counter = accessors.Count;
var wait = new System.Threading.AutoResetEvent(false);
foreach (var accessor in accessors)
{
System.Threading.ThreadPool.QueueUserWorkItem(acs =>
{
var loaded = (acs as ITootAccessor).Load(take);
System.Threading.Interlocked.Decrement(ref counter);
lock (sync)
{
if (loaded != null)
{
toots.AddRange(loaded);
}
}
if (counter <= 0)
{
wait.Set();
}
}, accessor);
}
wait.WaitOne();
#else
var toots = new System.Collections.Concurrent.ConcurrentBag <Toot>();
var tasks = accessors.Select(acs => System.Threading.Tasks.Task.Factory.StartNew(() =>
{
var loaded = (acs as ITootAccessor).Load(take);
if (loaded != null)
{
foreach (var t in loaded)
{
toots.Add(t);
}
}
}));
System.Threading.Tasks.Task.WaitAll(tasks.ToArray());
#endif
return(toots.OrderByDescending(t => t.CreateAt).ThenBy(t => t.IsRemote));
}
private static int WorkOutMove(Game game, Guid playerID)
{
const int MAXDEPTH = 3;
// What colour are we?
var weAreYellow = (game.YellowPlayerID == playerID);
// Which move will give us the highest score?
var counts = new System.Collections.Concurrent.ConcurrentBag <Tuple <int, int> >(); //Column, Score
Parallel.For(0, Game.NUMBER_OF_COLUMNS, column =>
{
if (IsValidMove(game, column))
{
var nextMove = EffectOfMakingMove(game, weAreYellow, column);
var ourScore = MiniMax(nextMove, false, !weAreYellow, MAXDEPTH, int.MinValue, int.MaxValue);
counts.Add(new Tuple <int, int>(column, ourScore));
}
});
var bestColumn = counts.OrderByDescending(a => a.Item2).First().Item1;
if (bestColumn == -1)
{
// Just play the first column
for (int column = 0; column < COLUMNS; column++)
{
if (IsValidMove(game, column))
{
bestColumn = column;
break;
}
}
}
return(bestColumn);
}