Merge pull request #689 from DCGO2/hooperk-card-load

Fix blank images when 2 of same card loaded at once

Assets/Scripts/Script/CEntity_Base.cs

@@ -41,6 +41,7 @@ public class CEntity_Base : ScriptableObject
     public string CardID = "";
     public int MaxCountInDeck = 4;
     public bool HasLoadStarted { get; set; } = false;
+    public Task CurrentLoadingTask { get; set; } = null;
     public Sprite CardSprite { get; set; } = null;
     public async Task LoadCardImage()
     {
@@ -59,13 +60,20 @@ public class CEntity_Base : ScriptableObject
         Sprite sprite = await StreamingAssetsUtility.GetSprite(CardSpriteName, isCard: true);
 
         CardSprite = sprite;
+
+        CurrentLoadingTask = null;
     }
 
     public async Task<Sprite> GetCardSprite()
     {
         if (!HasLoadStarted)
         {
-            await LoadCardImage();
+            CurrentLoadingTask = LoadCardImage();
+            await CurrentLoadingTask;
+        } 
+        else if (CurrentLoadingTask != null)
+        {
+            CurrentLoadingTask?.Wait();
         }
 
         return CardSprite;