新增私聊相关

Hotfix/Social/Mail/System/MailSystem.cs

@@ -0,0 +1,52 @@
+using Fantasy;
+using Fantasy.Entitas.Interface;
+using NB.Game;
+
+namespace NB.Chat;
+
+public class MailDestroySystem : DestroySystem<Mail>
+{
+    protected override void Destroy(Mail self)
+    {
+        self.OwnerId = 0;
+        self.Sender = 0;
+        self.Content = string.Empty;
+        self.ExpireTime = 0;
+        self.CreateTime = 0;
+        self.State = MailState.None;
+        self.MailType = MailType.None;
+        foreach (var item in self.Items)
+        {
+            item.Dispose();
+        }
+
+        self.Items.Clear();
+    }
+}
+
+public static class MailSystem
+{
+    public static MailInfo ToMailInfo(this Mail mail)
+    {
+        return new MailInfo()
+        {
+            Id = mail.Id,
+            Content = mail.Content,
+            CreateTime = mail.CreateTime,
+            MailState = (int)mail.State,
+            MailType = (int)mail.MailType,
+            Items = mail.Items.ToAwardInfo()
+        };
+    }
+
+    public static List<MailInfo> ToMailInfo(this List<Mail> mails)
+    {
+        var list = new List<MailInfo>();
+        foreach (var mail in mails)
+        {
+            list.Add(mail.ToMailInfo());
+        }
+
+        return list;
+    }
+}