Fix item usage

src/game/Game.cs

@@ -102,8 +102,8 @@ public partial class Game : Node3D, IGame
       {
         CallDeferred(nameof(SetPauseMode), output.IsPaused);
       })
-      .Handle((in GameLogic.Output.SetInventoryMode _) => { InventoryMenu.PopulateItems(); InventoryMenu.Show(); })
-      .Handle((in GameLogic.Output.HideInventory _) => { InventoryMenu.Hide(); InventoryMenu.ClearItems(); })
+      .Handle((in GameLogic.Output.SetInventoryMode _) => { InventoryMenu.RedrawInventory(); InventoryMenu.Show(); })
+      .Handle((in GameLogic.Output.HideInventory _) => { InventoryMenu.Hide(); })
       .Handle((in GameLogic.Output.ShowMiniMap _) => { MiniMap.Show(); })
       .Handle((in GameLogic.Output.HideMiniMap _) => { MiniMap.Hide(); })
       .Handle((in GameLogic.Output.GameOver _) => { AppRepo.OnGameOver(); });

src/inventory_menu/InventoryMenu.cs

@@ -8,9 +8,7 @@ using System.Threading.Tasks;
 
 public interface IInventoryMenu : IControl
 {
-  public void PopulateItems();
-
-  public void ClearItems();
+  public Task RedrawInventory();
 }
 
 [Meta(typeof(IAutoNode))]
@@ -67,13 +65,56 @@ public partial class InventoryMenu : Control, IInventoryMenu
 
   private IItemSlot[] ItemSlots => ItemsPage.GetChildren().OfType<IItemSlot>().ToArray();
 
-  public void PopulateItems()
+  public async Task RedrawInventory()
+  {
+    await HideUserActionPrompt();
+    ClearItems();
+    PopulateInventory();
+    PopulatePlayerInfo();
+  }
+
+  public override void _UnhandledInput(InputEvent @event)
+  {
+    if (ItemSlots.Length == 0)
+      return;
+
+    var inventory = GameRepo.InventoryItems.Value;
+
+    if (@event.IsActionPressed(GameInputs.UiRight) && _currentPageNumber == InventoryPageNumber.FirstPage && inventory.Count > _itemsPerPage)
+      ChangeInventoryPage(InventoryPageNumber.SecondPage);
+
+    if (@event.IsActionPressed(GameInputs.UiLeft) && _currentPageNumber == InventoryPageNumber.SecondPage)
+      ChangeInventoryPage(InventoryPageNumber.FirstPage);
+
+    if (@event.IsActionPressed(GameInputs.UiDown))
+    {
+      SetToUnselectedStyle(ItemSlots.ElementAt(_currentIndex));
+      _currentIndex = new[] { _currentIndex + 1, _itemsPerPage - 1, ItemSlots.Length - 1 }.Min();
+      SetToSelectedStyle(ItemSlots.ElementAt(_currentIndex));
+    }
+
+    if (@event.IsActionPressed(GameInputs.UiUp))
+    {
+      SetToUnselectedStyle(ItemSlots.ElementAt(_currentIndex));
+      _currentIndex = new[] { _currentIndex - 1, 0 }.Max();
+      SetToSelectedStyle(ItemSlots.ElementAt(_currentIndex));
+    }
+
+    if (@event.IsActionPressed(GameInputs.UiAccept))
+    {
+      if (ItemSlots.Length == 0 || GetViewport().GuiGetFocusOwner() is Button)
+        return;
+      DisplayUserActionPrompt();
+    }
+  }
+
+  private void PopulateItems()
   {
     PopulateInventory();
     PopulatePlayerInfo();
   }
 
-  public void ClearItems()
+  private void ClearItems()
   {
     foreach (var item in ItemSlots)
       ItemsPage.RemoveChildEx(item);
@@ -81,7 +122,7 @@ public partial class InventoryMenu : Control, IInventoryMenu
     HideUserActionPrompt();
   }
 
-  public void PopulatePlayerInfo()
+  private void PopulatePlayerInfo()
   {
     FloorLabel.Text = $"Level {GameRepo.CurrentFloor:D2}";
 
@@ -126,41 +167,6 @@ public partial class InventoryMenu : Control, IInventoryMenu
     }
   }
 
-  public override void _UnhandledInput(InputEvent @event)
-  {
-    if (ItemSlots.Length == 0)
-      return;
-
-    var inventory = GameRepo.InventoryItems.Value;
-
-    if (@event.IsActionPressed(GameInputs.UiRight) && _currentPageNumber == InventoryPageNumber.FirstPage && inventory.Count > _itemsPerPage)
-      ChangeInventoryPage(InventoryPageNumber.SecondPage);
-
-    if (@event.IsActionPressed(GameInputs.UiLeft) && _currentPageNumber == InventoryPageNumber.SecondPage)
-      ChangeInventoryPage(InventoryPageNumber.FirstPage);
-
-    if (@event.IsActionPressed(GameInputs.UiDown))
-    {
-      SetToUnselectedStyle(ItemSlots.ElementAt(_currentIndex));
-      _currentIndex = new[] { _currentIndex + 1, _itemsPerPage - 1, ItemSlots.Length - 1 }.Min();
-      SetToSelectedStyle(ItemSlots.ElementAt(_currentIndex));
-    }
-
-    if (@event.IsActionPressed(GameInputs.UiUp))
-    {
-      SetToUnselectedStyle(ItemSlots.ElementAt(_currentIndex));
-      _currentIndex = new[] { _currentIndex - 1, 0 }.Max();
-      SetToSelectedStyle(ItemSlots.ElementAt(_currentIndex));
-    }
-
-    if (@event.IsActionPressed(GameInputs.UiAccept))
-    {
-      if (ItemSlots.Length == 0 || GetViewport().GuiGetFocusOwner() is Button)
-        return;
-      DisplayUserActionPrompt();
-    }
-  }
-
   private void DisplayUserActionPrompt()
   {
     ItemDescriptionTitle.Hide();
@@ -205,7 +211,7 @@ public partial class InventoryMenu : Control, IInventoryMenu
     await ToSignal(GetTree().CreateTimer(0.1f), "timeout");
     _currentIndex = 0;
     _currentPageNumber = pageToChangeTo;
-    PopulateItems();
+    await RedrawInventory();
   }
 
   private void PopulateInventory()
@@ -314,10 +320,14 @@ public partial class InventoryMenu : Control, IInventoryMenu
     if (currentItem is ConsumableItem consumable)
       consumable.Use();
 
+    if (_currentIndex >= ItemSlots.Length - 1)
+      _currentIndex--;
+    if (_currentIndex <= 0)
+      _currentIndex = 0;
+
     // TODO: Replace with animation player (for visual effects/sound effects?)
     await ToSignal(GetTree().CreateTimer(0.25f), "timeout");
-    await HideUserActionPrompt();
-    PopulatePlayerInfo();
+    await RedrawInventory();
   }
 
   private async void ThrowButtonPressed()

src/items/consumable/ConsumableItem.cs

@@ -39,6 +39,8 @@ public partial class ConsumableItem : Node3D, IInventoryItem
       HealHP();
     if (ConsumableItemInfo.HealVTAmount != 0)
       HealVT();
+
+    GameRepo.InventoryItems.Value.Remove(this);
   }
 
   private void RaiseHP()