Rename cmd -> examples

examples/daze/daze.go

@@ -0,0 +1,98 @@
+// Daze could join an offline-mode server as client.
+// Just standing there and do nothing. Automatically reborn after five seconds of death.
+//
+// BUG(Tnze): Kick by Disconnect: Time Out
+package main
+
+import (
+	"errors"
+	"flag"
+	"log"
+	"time"
+
+	"github.com/google/uuid"
+
+	"github.com/Tnze/go-mc/bot"
+	"github.com/Tnze/go-mc/bot/basic"
+	"github.com/Tnze/go-mc/chat"
+	_ "github.com/Tnze/go-mc/data/lang/zh-cn"
+)
+
+var address = flag.String("address", "127.0.0.1", "The server address")
+var client *bot.Client
+var player *basic.Player
+
+func main() {
+	flag.Parse()
+	client = bot.NewClient()
+	client.Auth.Name = "Daze"
+	player = basic.NewPlayer(client, basic.DefaultSettings)
+	basic.EventsListener{
+		GameStart:  onGameStart,
+		ChatMsg:    onChatMsg,
+		Disconnect: onDisconnect,
+		Death:      onDeath,
+	}.Attach(client)
+
+	//Login
+	err := client.JoinServer(*address)
+	if err != nil {
+		log.Fatal(err)
+	}
+	log.Println("Login success")
+
+	//JoinGame
+	for {
+		if err = client.HandleGame(); err == nil {
+			panic("HandleGame never return nil")
+		}
+
+		if err2 := new(bot.PacketHandlerError); errors.As(err, err2) {
+			if err := new(DisconnectErr); errors.As(err2, err) {
+				log.Print("Disconnect: ", err.Reason)
+				return
+			} else {
+				// print and ignore the error
+				log.Print(err2)
+			}
+		} else {
+			log.Fatal(err)
+		}
+	}
+}
+
+func onDeath() error {
+	log.Println("Died and Respawned")
+	// If we exclude Respawn(...) then the player won't press the "Respawn" button upon death
+	go func() {
+		time.Sleep(time.Second * 5)
+		err := player.Respawn()
+		if err != nil {
+			log.Print(err)
+		}
+	}()
+	return nil
+}
+
+func onGameStart() error {
+	log.Println("Game start")
+	return nil //if err isn't nil, HandleGame() will return it.
+}
+
+func onChatMsg(c chat.Message, _ byte, _ uuid.UUID) error {
+	log.Println("Chat:", c.ClearString()) // output chat message without any format code (like color or bold)
+	return nil
+}
+
+type DisconnectErr struct {
+	Reason chat.Message
+}
+
+func (d DisconnectErr) Error() string {
+	return "disconnect: " + d.Reason.String()
+}
+
+func onDisconnect(reason chat.Message) error {
+	// return a error value so that we can stop main loop
+	return DisconnectErr{Reason: reason}
+}