public List<ServerEntity> GetClientsWithinViewDistance(ServerEntity client, List<ServerEntity> clients)
{
var otherClients = new List<ServerEntity>();
for (ushort i = 0; i < clients.Count; i++)
{
var otherClient = clients[i];
if (otherClient.Id != client.Id)
{
if (IsWithinViewDistance(client, otherClient))
{
otherClients.Add(otherClient);
}
}
}
return otherClients;
}
public List<EntityEvent> GetRecentEvents(ServerEntity toEntity, ServerEntity fromEntity, float currentTimeStamp, float withinSeconds = 2f)
{
var result = new List<EntityEvent>();
if (fromEntity.Events.Count > 0)
{
// Subtract the clients local time to get an accurate measurement
currentTimeStamp += fromEntity.RemoteTimeOffset;
// Subtract the number of seconds to get the interval from which we retrieve events
currentTimeStamp -= withinSeconds;
// Find the last event timestamp sent to this entity and make sure we dont send events older than this
float lastEventTimeStampProcessed = GetLastEventTimeStampProcessed(toEntity.Id, fromEntity.Id);
if (currentTimeStamp < lastEventTimeStampProcessed)
{
currentTimeStamp = lastEventTimeStampProcessed;
}
// Traverse backwards in time since the last events are the most recent
for (int i = fromEntity.Events.Count - 1; i >= 0; i--)
{
// Get all events within the specified timeframe
if (fromEntity.Events[i].TimeStamp > currentTimeStamp)
{
ServerEntityEventsProcessed[toEntity.Id][fromEntity.Id] = fromEntity.Events[i].TimeStamp;
result.Add(fromEntity.Events[i]);
//System.Diagnostics.Debug.WriteLine(string.Format("Sending: TimeStamp: {0}, Type: {1}, Server: {2}, Server -2: {3}", Events[i].TimeStamp, Events[i].Type, currentTimeStamp, currentTimeStamp - seconds));
}
// No more events within the timespan
else
{
//System.Diagnostics.Debug.WriteLine(string.Format("Failed event: TimeStamp: {0}, Type: {1}, Server: {2}", Events[i].TimeStamp, Events[i].Type, currentTimeStamp - seconds));
break;
}
}
}
return result;
}
public bool IsWithinViewDistance(ServerEntity a, ServerEntity b)
{
// TODO: Adjust this based on entity type
float distance = 75;
return Vector3.Distance(a.CurrentSpatial.Position, b.CurrentSpatial.Position) < distance;
}
private ServerEntity CreateConnectedClient(ushort id, Message message)
{
var entityInfo = new ServerEntity(id, message.ClientId);
entityInfo.RemoteTimeOffset = message.RemoteTimeOffset;
return entityInfo;
}