void SendActivationPacket(double preDelay = 0)
{
ProtocolPacket pkt = new ProtocolPacket();
pkt.SourceDeviceID = ActivatingId;
pkt.TimeToActivation = ActivateAt - CurrentTime - preDelay;
if (pkt.TimeToActivation > 0 && (PacketCount < PacketThreshold || MasterMode))
{
RadioTransmitPacket(pkt, preDelay);
}
PacketCount = 0;
MyPacketSpacing += PacketSpacingIncrease;
// Decide whether to send more packets.
double timetoEnd = ActivateAt - CurrentTime;
double thisPacketSpacing = MyPacketSpacing + ParentSimulation.NextRandom() * PacketRandomness;
if (timetoEnd < thisPacketSpacing)
{
SetTimerCallback(timetoEnd, () => Activate());
}
else
{
SetTimerCallback(thisPacketSpacing, () => SendActivationPacket());
}
}
/// <summary>
/// Called when a packet is received by this device.
/// </summary>
public void ReceivePacket(object packet)
{
ProtocolPacket pkt = (ProtocolPacket)packet;
if (WaitingForActivation)
{
// Do nothing- already aware of the impending activation
// Future: Deal with the possibility of two nodes being activated independently
PacketCount++;
}
else
{
// Imperfect computation - try to improve.
ActivateAt = CurrentTime + pkt.TimeToActivation;
ActivatingId = pkt.SourceDeviceID;
WaitingForActivation = true;
double delay = ParentSimulation.NextRandom() * PacketSpacing;
SetTimerCallback(delay, () => SendActivationPacket());
SetLedColor(Colors.Red);
PacketCount = 0;
MasterMode = false;
MyPacketSpacing = PacketSpacing;
RadioSetModeReceive();
}
}
