Improve some conditions

ARDiscard/GameData/ItemCache.cs

@@ -23,6 +23,7 @@ public sealed class ItemCache
                 Rarity = item.Rarity,
                 IsUnique = item.IsUnique,
                 IsUntradable = item.IsUntradable,
+                IsIndisposable = item.IsIndisposable,
                 Level = item.LevelEquip,
                 UiCategory = item.ItemUICategory.Row,
             };
@@ -31,7 +32,12 @@ public sealed class ItemCache
 
     public IEnumerable<CachedItemInfo> AllItems => _items.Values;
 
-    public CachedItemInfo? GetItem(uint itemId) => _items[itemId];
+    public CachedItemInfo? GetItem(uint itemId)
+    {
+        if (_items.TryGetValue(itemId, out var item))
+            return item;
+        return null;
+    }
 
     public string GetItemName(uint itemId)
     {
@@ -49,6 +55,12 @@ public sealed class ItemCache
         public required byte Rarity { get; init; }
         public required bool IsUnique { get; init; }
         public required bool IsUntradable { get; init; }
+
+        /// <summary>
+        /// Whether this item can be discarded at all. "Discard" is greyed out e.g. for the preorder EXP earrings.
+        /// </summary>
+        public required bool IsIndisposable { get; init; }
+
         public required uint UiCategory { get; init; }
     }
 }

ARDiscard/Windows/ConfigWindow.cs

@@ -65,7 +65,8 @@ public sealed class ConfigWindow : Window
         }
 
         ImGui.SameLine(ImGui.GetWindowWidth() - 115 * ImGuiHelpers.GlobalScale);
-        ImGui.BeginDisabled(!_clientState.IsLoggedIn || !_condition[ConditionFlag.NormalConditions] ||
+        ImGui.BeginDisabled(!_clientState.IsLoggedIn ||
+                            !(_condition[ConditionFlag.NormalConditions] || _condition[ConditionFlag.Mounted]) ||
                             DiscardNowClicked == null);
         if (ImGui.Button("Preview Discards"))
             DiscardNowClicked!.Invoke(this, EventArgs.Empty);
@@ -343,7 +344,7 @@ public sealed class ConfigWindow : Window
         if (_allItems == null)
         {
             _allItems = _itemCache.AllItems
-                .Where(x => !x.IsUnique && !x.IsUntradable)
+                .Where(x => x is { IsUnique: false, IsUntradable: false, IsIndisposable: false })
                 .Where(x => x.UiCategory != UiCategories.Currency && x.UiCategory != UiCategories.Crystals &&
                             x.UiCategory != UiCategories.Unobtainable)
                 .Select(x => (x.ItemId, x.Name.ToString()))

ARDiscard/Windows/DiscardWindow.cs

@@ -80,7 +80,7 @@ public sealed class DiscardWindow : Window
         ImGui.SameLine(ImGui.GetWindowWidth() - 160 * ImGuiHelpers.GlobalScale);
         ImGui.BeginDisabled(Locked ||
                             !_clientState.IsLoggedIn ||
-                            !_condition[ConditionFlag.NormalConditions] ||
+                            !(_condition[ConditionFlag.NormalConditions] || _condition[ConditionFlag.Mounted]) ||
                             _displayedItems.Count(x => x.Selected) == 0 ||
                             DiscardAllClicked == null);
         if (ImGui.Button("Discard all selected items"))