func (self *Configurable) Turn(comm agent.Comm) {
broadcasted := comm.Broadcast(23, []byte("hello_world"))
if self.LogBroadcast {
comm.Log("Broadcast success:", broadcasted)
}
comm.Move(self.XVelocity, self.YVelocity)
if self.LogMove {
// comm.Logf("Pos: %v (%t)", self.Position(), success)
}
if self.LogListen {
comm.Log("Heard:", string(comm.Listen(23)))
}
if self.LogCollect {
comm.Log("Collected: ", comm.Collect())
}
if self.LogLook {
comm.Log("Look: ", comm.Collect())
}
if self.LogPrevious {
comm.Log("Previous: ", comm.PrevResult())
}
if self.LogEnergy {
comm.Log("Energy:", comm.Energy())
}
return
}
func (self *SendMachine) PerformListens(comm agent.Comm) *DataGram {
switch self.state {
case 1:
return nil
}
pkt := MakePacket(comm.Listen(self.freq))
if !pkt.ValidateChecksum() {
return nil
}
ok, cmd, _ := pkt.Cmd()
if !ok {
return nil
}
switch cmd {
case Commands["MESSAGE"]:
myaddr := uint32(self.agent.Id())
to := pkt.ToField()
from := pkt.FromField()
body := pkt.GetBody(PacketBodySize)
self.qlog("heard", from, "sent to", to, "pkt", pkt, MakeDataGram(body))
if to == myaddr {
msg := MakeDataGram(body)
if msg.ValidateChecksum() {
ack := NewAckGram(msg.ComputeChecksum(), myaddr, from)
self.sendq.QueueFront(ack)
// ack_pkt := NewPacket(Commands["ACK"], myaddr, from)
// ack_pkt.SetBody(ack.Bytes())
// bytes := ack_pkt.Bytes()
// comm.Broadcast(self.freq, bytes)
if msg.DestAddr == myaddr {
return msg
}
self.sendq.Queue(msg)
}
}
}
return nil
}
func (self *SendMachine) confirm_acked(comm agent.Comm) (confirm bool) {
cur := comm.Listen(self.freq)
if self.last.Eq(cur) {
self.qlog("heard my own packet")
self.heard_last = true
return false
}
if self.heard_last == false {
self.wait -= 1
if self.wait == 0 {
self.state = 0
self.backoff = self.backoff * (pseudo_rand.Float64()*2 + 1)
self.wait = uint32(self.backoff)
self.qlog("didn't hear last waiting...", self.wait)
}
return false
}
self.ack_wait -= 1
if self.ack_wait == 0 {
self.ack_backoff = self.ack_backoff * (pseudo_rand.Float64()*2 + 1)
self.ack_wait = uint32(self.ack_backoff)
self.state = 0
return false
}
pkt := MakePacket(cur)
if !pkt.ValidateChecksum() {
return false
}
ok, cmd, _ := pkt.Cmd()
if !ok {
return false
}
self.log("info", self.agent.Time(), "got possible ack pkt", pkt)
switch cmd {
case Commands["ACK"]:
self.log("info", self.agent.Time(), "it is an ack")
myaddr := self.agent.Id()
to := pkt.ToField()
body := pkt.GetBody(PacketBodySize)
self.log("info", self.agent.Time(), "it is to me?", myaddr, to)
if to == myaddr {
msg := MakeDataGram(body)
self.log("info", self.agent.Time(), "the datagram", msg)
if msg.ValidateChecksum() {
self.log("info", self.agent.Time(), "it validates")
self.log("info", self.agent.Time(), "it dest", msg.DestAddr, "myaddr", myaddr)
if msg.DestAddr == myaddr {
self.log("info", self.agent.Time(), "it dest == myaddr")
bytes := msg.Body()[0:4]
self.log("info", self.agent.Time(), "bytes", bytes, "last", self.last_checksum)
if self.last_checksum.Eq(bytes) {
return true
}
}
}
}
}
return false
}
func (self *SendMachine) confirm_last(comm agent.Comm) (confirm bool) {
bytes := comm.Listen(self.freq)
confirm = self.last.Eq(bytes)
self.log("info", self.agent.Time(), "confirm_last", confirm)
return
}