Added Godot based server

tools/server/login.go

@@ -0,0 +1,20 @@
+package main
+
+import (
+	"bytes"
+	"fmt"
+	"server/core"
+	"server/packet"
+)
+
+// login checks the account credentials and gives a network peer access to an account.
+func login(data []byte, client *core.Client) {
+	if !bytes.Equal(data, []byte("password")) {
+		fmt.Println("login failure")
+		server.Send(packet.LOGIN, []byte{1}, client)
+		return
+	}
+
+	fmt.Println("login success")
+	server.Send(packet.LOGIN, []byte{0}, client)
+}