Optimize PacketHandler performance

examples/pressureTest/main.go

@@ -0,0 +1,99 @@
+package main
+
+import (
+	"flag"
+	"log"
+	"strconv"
+	"time"
+
+	"github.com/mattn/go-colorable"
+
+	"github.com/Tnze/go-mc/bot"
+	"github.com/Tnze/go-mc/bot/basic"
+	"github.com/Tnze/go-mc/chat"
+)
+
+var address = flag.String("address", "127.0.0.1", "The server address")
+var number = flag.Int("number", 1023, "The number of clients")
+
+func main() {
+	flag.Parse()
+	log.SetOutput(colorable.NewColorableStdout())
+
+	for i := 0; i < *number; i++ {
+		go func(i int) {
+			for {
+				ind := newIndividual(i, "Player"+strconv.Itoa(i))
+				ind.run(*address)
+				time.Sleep(time.Second * 3)
+			}
+		}(i)
+	}
+	select {}
+}
+
+type individual struct {
+	id     int
+	client *bot.Client
+	player *basic.Player
+}
+
+func newIndividual(id int, name string) (i *individual) {
+	i = new(individual)
+	i.id = id
+	i.client = bot.NewClient()
+	i.client.Auth.Name = name
+	i.player = basic.NewPlayer(i.client, basic.DefaultSettings)
+	basic.EventsListener{
+		GameStart:  i.onGameStart,
+		Death:      i.onDeath,
+		Disconnect: onDisconnect,
+	}.Attach(i.client)
+	return
+}
+
+func (i *individual) run(address string) {
+	//Login
+	err := i.client.JoinServer(address)
+	if err != nil {
+		log.Printf("[%d]Login fail: %v", i.id, err)
+		return
+	}
+	log.Printf("[%d]Login success", i.id)
+
+	//JoinGame
+	if err = i.client.HandleGame(); err == nil {
+		panic("HandleGame never return nil")
+	}
+	log.Printf("[%d] Handle game error: %v", i.id, err)
+}
+
+func (i *individual) onDeath() error {
+	log.Printf("[%d]Died and Respawned", i.id)
+	// If we exclude Respawn(...) then the player won't press the "Respawn" button upon death
+	go func() {
+		time.Sleep(time.Second * 5)
+		err := i.player.Respawn()
+		if err != nil {
+			log.Print(err)
+		}
+	}()
+	return nil
+}
+
+func (i *individual) onGameStart() error {
+	log.Printf("[%d]Game start", i.id)
+	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 DisconnectErr{Reason: reason}
+}