Support player registration

app.go

@@ -71,6 +71,14 @@ func logIn(c *Client) {
 	go c.connect()
 }
 
+func register(c *Client) {
+	app.SetRoot(uiGrid, true)
+	app.SetFocus(inputField)
+
+	c.registerAccount = true
+	go c.connect()
+}
+
 func RunApp(c *Client) error {
 	app = cview.NewApplication()
 	app.EnableMouse(true)
@@ -150,6 +158,9 @@ func RunApp(c *Client) error {
 	usernameField := cview.NewInputField()
 	usernameField.SetLabel("Username")
 	usernameField.SetFieldWidth(16)
+	usernameField.SetAcceptanceFunc(func(textToCheck string, lastChar rune) bool {
+		return (lastChar >= 'a' && lastChar <= 'z') || (lastChar >= 'A' && lastChar <= 'Z') || lastChar == '_'
+	})
 	passwordField := cview.NewInputField()
 	passwordField.SetLabel("Password")
 	passwordField.SetFieldWidth(16)
@@ -164,6 +175,13 @@ func RunApp(c *Client) error {
 		logIn(c)
 	}
 
+	registerFunc := func() {
+		c.username = usernameField.GetText()
+		c.password = passwordField.GetText()
+
+		register(c)
+	}
+
 	app.SetInputCapture(func(event *tcell.EventKey) *tcell.EventKey {
 		if !c.loggedin {
 			if event.Key() == tcell.KeyEnter {
@@ -188,7 +206,8 @@ func RunApp(c *Client) error {
 		return event
 	})
 
-	form.AddButton("Connect", connectFunc)
+	form.AddButton("Log in", connectFunc)
+	form.AddButton("Register", registerFunc)
 	form.SetPadding(1, 0, 2, 0)
 
 	logInHeader := cview.NewTextView()

client.go

@@ -64,6 +64,8 @@ type Client struct {
 	username string
 	password string
 
+	registerAccount bool
+
 	loggedin bool
 	motd     []byte
 	rawMode  bool
@@ -152,7 +154,22 @@ func (c *Client) CallTELNET(ctx telnet.Context, w telnet.Writer, r telnet.Reader
 				bt := strings.TrimSpace(b.String())
 				if bt == "login:" {
 					b.Reset()
-					c.out <- []byte(fmt.Sprintf("login bgammon 1008 %s %s", c.username, c.password))
+					if c.registerAccount {
+						time.Sleep(5 * time.Second)
+						c.out <- []byte("guest")
+						time.Sleep(5 * time.Second)
+						c.out <- []byte(fmt.Sprintf("name %s", c.username))
+						time.Sleep(2 * time.Second)
+						c.out <- []byte(c.password)
+						time.Sleep(2 * time.Second)
+						c.out <- []byte(c.password)
+						time.Sleep(5 * time.Second)
+						c.registerAccount = false
+						c.reconnect()
+						continue
+					} else {
+						c.out <- []byte(fmt.Sprintf("login bgammon 1008 %s %s", c.username, c.password))
+					}
 					c.loggedin = true
 
 					go func() {
@@ -289,15 +306,25 @@ func (c *Client) watchRandomGame() {
 	c.out <- []byte("watch " + option)
 }
 
+func (c *Client) dial() {
+	err := telnet.DialToAndCall(serverAddress, c)
+	if err != nil {
+		lf("disconnected: %s", err)
+	}
+}
+
 func (c *Client) connect() {
 	l(fmt.Sprintf("Connecting to %s...", serverAddress))
 
 	go c.keepAlive()
 
-	err := telnet.DialToAndCall(serverAddress, c)
-	if err != nil {
-		lf("disconnected: %s", err)
-	}
+	c.dial()
+}
+
+func (c *Client) reconnect() {
+	c.out <- []byte("bye")
+	time.Sleep(time.Second)
+	c.dial()
 }
 
 func (c *Client) eventLoop() {