func listenForMoveRequests(conn *net.TCPConn) {
listenServe := make(chan []uint8)
easynet.TieConnToChannel(conn, listenServe)
for data := range listenServe {
r := new(ttypes.BotMoveRequest)
err := json.Unmarshal(data, r)
easynet.DieIfError(err, "JSON error")
if r.Kill {
fmt.Printf("Bot on %s received kill signal\n", os.Args[0])
os.Exit(0)
}
fmt.Printf("Bot at %d, %d received messages: %v\n", r.YourX, r.YourY, r.Messages)
fmt.Printf(" Sees other bots: %v\n", r.OtherBots)
//Do something
response := new(ttypes.BotMoveResponse)
if r.YourY < 5 {
response.MoveDirection = "up"
} else if r.YourY > 5 {
response.MoveDirection = "down"
}
// response.BroadcastMessage = fmt.Sprintf("'I am %v at %d, %d'", os.Args[0], r.YourX, r.YourY)
responseString, err := json.Marshal(response)
easynet.DieIfError(err, "JSON marshal error")
conn.Write(responseString)
}
}
// Set up incoming and outgoing TCP connections to all adjacent coordinators
func connectToAdjacents(listener *net.TCPListener) chan bool {
adjsServe = make(CoordMap, len(config.AdjacentCoords))
adjsRequest = make(CoordMap, len(config.AdjacentCoords))
listenServe = make(chan []uint8)
serveFound := make(chan int)
requestFound := make(chan int)
allDone := make(chan bool)
go func() {
for _, adj := range config.AdjacentCoords {
go func() {
adjsRequest[adj.Identifier] = easynet.Dial(adj.Address)
adjsRequest[adj.Identifier].Write([]uint8(strconv.Itoa(config.Identifier)))
requestFound <- adj.Identifier
}()
go func() {
newConn := easynet.Accept(listener)
identifier, err := strconv.Atoi(string(easynet.ReceiveFrom(newConn)))
easynet.DieIfError(err, "String conversion error")
adjsServe[identifier] = newConn
easynet.TieConnToChannel(newConn, listenServe)
serveFound <- identifier
}()
}
for i := 0; i < len(config.AdjacentCoords); i++ {
<-requestFound
<-serveFound
}
fmt.Printf("%d is connected to all neighbors\n", config.Identifier)
allDone <- true
}()
return allDone
}