// Run starts the back end.
func Run() {
flag.Parse()
if !*debug {
log.SetOutput(ioutil.Discard)
}
wg.Add(1)
hub.SetTimeout(time.Second * 10)
go hub.Run()
go gs.Run()
setupSchedulerCallbacks()
games := getAvailableGames()
names := getListOfGameNames(games)
addGamesToScheduler(games)
exists := false
if *game != launcher {
for _, g := range names {
if g == *game {
exists = true
}
}
} else if _, ok := games[launcher]; ok {
exists = true
}
if *scheduler {
if exists {
gs.Start(*game)
} else {
log.Fatal("Game doesn't exist: ", *game)
wg.Done()
}
}
setupHubEventHandlers()
setupHubMessageHandlers(games, names)
setupHTTPHandlers(games)
go func() {
err := http.ListenAndServe(*addr, nil)
if err != nil {
log.Fatal("ListenAndServe: ", err)
}
wg.Done()
}()
wg.Wait()
}
func setupSchedulerCallbacks() {
gs.OnStart(func(name string) {
hub.Send(hub.MessageOut{
From: gameClient,
To: hub.Broadcast,
Action: actionRedirect,
Data: name,
})
})
gs.OnStop(func(name string, current string) {
// If no new game has started
if name == current {
if name != launcher {
gs.Start(launcher)
} else {
gs.Quit()
wg.Done()
}
}
})
}
func setupHubMessageHandlers(games map[string]gp.Game, names []string) {
hub.AddMessageHandler(actionGetIP, func(m hub.MessageIn) {
host, port, err := net.SplitHostPort(*addr)
if err != nil {
log.Println("get ip:", err)
return
}
if host == "" || host == "localhost" {
host, err = externalIP()
if err != nil {
log.Println("get ip:", err)
return
}
}
displayAddr := net.JoinHostPort(host, port)
if port == "80" {
displayAddr = host
}
hub.Send(hub.MessageOut{
To: m.From,
Action: actionGetIP,
Data: displayAddr,
})
})
hub.AddMessageHandler(actionList, func(m hub.MessageIn) {
hub.Send(hub.MessageOut{
To: m.From,
Action: actionList,
Data: names,
})
})
hub.AddMessageHandler(actionStart, func(m hub.MessageIn) {
var data string
err := json.Unmarshal(m.Data, &data)
if err != nil {
return
}
gs.Start(data)
})
hub.AddMessageHandler(actionDescription, func(m hub.MessageIn) {
var data string
err := json.Unmarshal(m.Data, &data)
if err != nil {
return
}
var description string
if game, ok := games[data]; ok {
description = game.Description
}
hub.Send(hub.MessageOut{
To: m.From,
Action: actionDescription,
Data: description,
})
})
hub.AddMessageHandler(actionPlayers, func(m hub.MessageIn) {
var data string
err := json.Unmarshal(m.Data, &data)
if err != nil {
return
}
var players int
if game, ok := games[data]; ok {
players = game.Players
}
hub.Send(hub.MessageOut{
To: m.From,
Action: actionPlayers,
Data: players,
})
})
}