From 8806614c0bc24e6d64539c66592d006a8a65b5c8 Mon Sep 17 00:00:00 2001
From: Manu <52102823+Manu098vm@users.noreply.github.com>
Date: Thu, 10 Aug 2023 23:00:23 +0200
Subject: [PATCH] fix wcid editing for entities with null ftid

---
 SwitchGiftDataManager.Core/Classes/WCManager/WC9.cs | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/SwitchGiftDataManager.Core/Classes/WCManager/WC9.cs b/SwitchGiftDataManager.Core/Classes/WCManager/WC9.cs
index 4e5f43b..a4ce776 100644
--- a/SwitchGiftDataManager.Core/Classes/WCManager/WC9.cs
+++ b/SwitchGiftDataManager.Core/Classes/WCManager/WC9.cs
@@ -130,12 +130,15 @@ public class WC9 : Wondercard
         if (Type is GiftType9 t9 && t9 is GiftType9.Pokemon)
         {
             //Old FullTID
-            var ftid = BinaryPrimitives.ReadUInt32LittleEndian(Data.AsSpan(TIDOffset)) - (1000000u * (uint)WCID);
+            var ftid = BinaryPrimitives.ReadUInt32LittleEndian(Data.AsSpan(TIDOffset));
 
-            //Recalculate the TID and SID (FullTID) to account for the new Wondercard ID
-            BinaryPrimitives.WriteUInt32LittleEndian(Data.AsSpan(TIDOffset), ftid + (1000000u * (uint)wcid));
-
-            pkEdited = true;
+            if (ftid != 0)
+            {
+                //Recalculate the TID and SID (FullTID) to account for the new Wondercard ID
+                ftid -= (1000000u * (uint)WCID);               
+                BinaryPrimitives.WriteUInt32LittleEndian(Data.AsSpan(TIDOffset), ftid + (1000000u * (uint)wcid));
+                pkEdited = true;
+            }
         }
 
         //Write the new Wondercard ID