/// <summary>
/// This fires in an arbitrary thread. It looks at what's in the map, and builds instructions that will be run in the main thread
/// (adds/removes)
/// </summary>
public void Update_AnyThread(double elapsedTime)
{
MapOctree snapshot = _map.LatestSnapshot;
if (snapshot == null)
{
return;
}
IEnumerable <MapObjectInfo> allItems = snapshot.GetItems();
//_map.GetAllItems(true) //TODO: May want to use this to get disposed items
// Look for too few/many
ChangeInstruction[] asteroids = ExamineAsteroids(allItems, _boundry);
ChangeInstruction[] minerals = ExamineMinerals(allItems, _boundry, _mineralTypesByValue);
// Store these instructions for the main thread to do
if (asteroids != null || minerals != null)
{
ChangeInstruction[] instructions = UtilityCore.ArrayAdd(asteroids, minerals);
if (instructions.Length > MAXCHANGES)
{
instructions = UtilityCore.RandomOrder(instructions, MAXCHANGES).ToArray();
}
_instructions = instructions;
}
}
private Point3D[] GetNearbyObjects(Point3D center, double radius)
{
//TODO: filter what they can drag toward
//TODO: frequent requests should reuse results of a prev call
MapOctree snapshot = _map.LatestSnapshot;
if (snapshot != null)
{
// The snapshot is designed for this kind of request, so use it
return(snapshot.GetItems(center, radius).
Where(o => o.MapObject != _selectedItem.Item). // don't return the item behing dragged
Select(o => o.Position).ToArray());
}
double radSquared = radius * radius;
// Do a brute force scan of all objects
return(_map.GetAllItems().
Where(o => o != _selectedItem.Item). // don't return the item behing dragged
Select(o => o.PhysicsBody.Position).
Where(o => (center - o).LengthSquared <= radSquared).
ToArray());
}
private Tuple<MapObjectInfo, double, ForceSettings_Initial>[] GetNeighbors(MapOctree snapshot, Point3D position)
{
// Get nearby items, sort by distance
double searchRadius = this.SearchRadius;
var initial = snapshot.GetItems(position, searchRadius).
Where(o => o.Token != this.Token).
Select(o => Tuple.Create(o, (o.Position - position).LengthSquared)).
OrderBy(o => o.Item2).
ToArray();
// Get chase settings for each item
//NOTE: This needs to be done after sorting on distance, because bots will have different settings if too many are actively chased
var retVal = new List<Tuple<MapObjectInfo, double, ForceSettings_Initial>>();
int chaseNeighborCount = this.ChaseNeighborCount;
int currentNeighborCount = 0;
foreach (var item in initial)
{
ForceSettings_Initial chaseProps = GetForceSetting_Initial(ref currentNeighborCount, item.Item1, chaseNeighborCount);
if (chaseProps != null)
{
retVal.Add(Tuple.Create(item.Item1, item.Item2, chaseProps));
}
}
return retVal.ToArray();
}
