Re-introduce prototype code

src/inventory_menu/InventoryMenu.cs

@@ -0,0 +1,126 @@
+using Chickensoft.AutoInject;
+using Chickensoft.GodotNodeInterfaces;
+using Chickensoft.Introspection;
+using GameJamDungeon;
+using Godot;
+using System.Collections.Generic;
+
+public interface IInventoryMenu : IControl
+{
+  public void PopulateItems(List<InventoryItem> items);
+
+  public void ClearItems();
+}
+
+[Meta(typeof(IAutoNode))]
+public partial class InventoryMenu : Control, IInventoryMenu
+{
+  public override void _Notification(int what) => this.Notify(what);
+
+  [Node] public IVBoxContainer ItemList { get; set; } = default!;
+
+  [Node] public TextureRect Cursor { get; set; } = default!;
+
+  [Dependency] public IGameRepo GameRepo => this.DependOn<IGameRepo>();
+
+  private int _currentSelection = 0;
+
+  public void PopulateItems(List<InventoryItem> items)
+  {
+    foreach (var item in items)
+    {
+      var label = new WeaponLabel(item) { Text = item.Name };
+      ItemList.AddChild(label);
+    }
+
+    if (ItemList.GetChildCount() > 0)
+      CallDeferred(nameof(InitializeInventoryMenu));
+  }
+
+  public void InitializeInventoryMenu()
+  {
+    if (ItemList.GetChildCount() > 0)
+    {
+      var currentItem = ItemList.GetChild<Control>(_currentSelection);
+      SetCursorLocation(currentItem);
+    }
+  }
+
+  public void ClearItems()
+  {
+    foreach (var item in ItemList.GetChildren())
+      ItemList.RemoveChild(item);
+  }
+
+  public void SetCursorLocation(Control menuItem)
+  {
+    var position = menuItem.GlobalPosition;
+    var size = menuItem.Size;
+
+    Cursor.GlobalPosition = new Vector2(position.X, position.Y + size.Y / 2.0f) - Cursor.Size / 2.0f - new Vector2(15, -5);
+  }
+
+  public void SetCursorToPrevious()
+  {
+    if (ItemList.GetChildCount() == 0)
+      return;
+
+    if (_currentSelection > 0)
+    {
+      _currentSelection -= 1;
+      var selectedMenuItem = ItemList.GetChild<Control>(_currentSelection);
+      SetCursorLocation(selectedMenuItem);
+    }
+  }
+
+  public void SetCursorToNext()
+  {
+    if (ItemList.GetChildCount() == 0)
+      return;
+
+    if (_currentSelection < ItemList.GetChildCount() - 1)
+    {
+      _currentSelection += 1;
+      var selectedMenuItem = ItemList.GetChild<Control>(_currentSelection);
+      SetCursorLocation(selectedMenuItem);
+    }
+  }
+
+  private void UnequipItem(WeaponLabel item)
+  {
+    item.UnequipItem();
+  }
+
+  public override void _Process(double delta)
+  {
+    var input = Vector2.Zero;
+    if (Input.IsActionJustPressed(GameInputs.MoveUp))
+      SetCursorToPrevious();
+    if (Input.IsActionJustPressed(GameInputs.MoveDown))
+      SetCursorToNext();
+  }
+}
+
+public partial class WeaponLabel : Label
+{
+  public WeaponLabel(InventoryItem inventoryItem)
+  {
+    InventoryItem = inventoryItem;
+    LabelSettings = UnequippedItemFont;
+  }
+
+  public InventoryItem InventoryItem { get; set; } = default!;
+
+  private static LabelSettings UnequippedItemFont => GD.Load<LabelSettings>("res://src/vfx/Fonts/InventoryLabelSettings.tres");
+  private static LabelSettings EquippedItemFont => GD.Load<LabelSettings>("res://src/vfx/Fonts/EquippedInventoryLabelSettings.tres");
+
+  public void EquipItem()
+  {
+    LabelSettings = EquippedItemFont;
+  }
+
+  public void UnequipItem()
+  {
+    LabelSettings = UnequippedItemFont;
+  }
+}