/// <summary>
/// Positions a minion (e.g. a ship) using any of the spawn areas in the arena.
/// </summary>
public static void PositionNewMinion(Gob minion, Arena arena)
{
Func<IGeomPrimitive, int, IEnumerable<Vector2>> getRandomPoses = (area, count) =>
Enumerable.Range(0, count)
.Select(x => arena.GetFreePosition(LARGE_GOB_PHYSICAL_RADIUS, area));
var spawnPoses = arena.Gobs.All<SpawnPlayer>()
.SelectMany(spawn => getRandomPoses(spawn._spawnArea, 5));
var poses = spawnPoses.Any()
? spawnPoses
: getRandomPoses(new Rectangle(Vector2.Zero, arena.Dimensions), 20);
var posesWithThreats = poses
.Select(pos => new { pos, mood = GetMood(minion, pos) })
.ToList()
.OrderByDescending(x => x.mood)
.ToList();
var bestMood = posesWithThreats[0].mood;
var bestSpawns = posesWithThreats.TakeWhile(x => x.mood == bestMood).ToList();
var bestPos = bestSpawns[RandomHelper.GetRandomInt(bestSpawns.Count)].pos;
minion.ResetPos(bestPos, Vector2.Zero, Gob.DEFAULT_ROTATION);
}