Fix synchro summoning, not working since v1338

Game/GameBehavior.cs

@@ -827,12 +827,12 @@ namespace WindBot.Game
             int min = packet.ReadByte();
             int max = packet.ReadByte();
             
-            // TODO mandatory cards
-            int count = packet.ReadByte();
-            packet.ReadBytes(count * 11);
-
+            IList<ClientCard> mandatoryCards = new List<ClientCard>();
             IList<ClientCard> cards = new List<ClientCard>();
-            count = packet.ReadByte();
+
+            for (int j = 0; j < 2; ++j)
+            {
+                int count = packet.ReadByte();
                 for (int i = 0; i < count; ++i)
                 {
                     int cardId = packet.ReadInt32();
@@ -844,19 +844,29 @@ namespace WindBot.Game
                     {
                         if (cardId != 0 && card.Id != cardId)
                             card.SetId(cardId);
-                    cards.Add(card);
                     }
+                    if (j == 0)
+                        mandatoryCards.Add(card);
+                    else
+                        cards.Add(card);
                     packet.ReadInt32();
                 }
+            }
 
             IList<ClientCard> selected = _ai.OnSelectSum(cards, sumval, min, max);
 
-            byte[] result = new byte[selected.Count + 1];
-            result[0] = (byte)selected.Count;
+            byte[] result = new byte[mandatoryCards.Count + selected.Count + 1];
+            int index = 0;
+
+            result[index++] = (byte)(mandatoryCards.Count + selected.Count);
+            while (index < mandatoryCards.Count)
+            {
+                result[index++] = 0;
+            }
             for (int i = 0; i < selected.Count; ++i)
             {
                 int id = 0;
-                for (int j = 0; j < count; ++j)
+                for (int j = 0; j < cards.Count; ++j)
                 {
                     if (cards[j] == null) continue;
                     if (cards[j].Equals(selected[i]))
@@ -865,7 +875,7 @@ namespace WindBot.Game
                         break;
                     }
                 }
-                result[i + 1] = (byte)id;
+                result[index++] = (byte)id;
             }
 
             GamePacketWriter reply = new GamePacketWriter(CtosMessage.Response);