Rework game over logic and game initialization

Zennysoft.Game.Ma/src/items/Inventory.cs

@@ -2,6 +2,7 @@
 using Chickensoft.Introspection;
 using Chickensoft.Serialization;
 using Godot;
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using Zennysoft.Game.Abstractions;
@@ -17,6 +18,8 @@ public partial class Inventory : Node, IInventory
   // TODO: Constants class with export
   private const int _maxInventorySize = 20;
 
+  public event Action<string> BroadcastMessage;
+
   public Inventory()
   {
     Items = [];
@@ -25,6 +28,20 @@ public partial class Inventory : Node, IInventory
   [Save("inventory_items")]
   public List<InventoryItem> Items { get; private set; }
 
+  public bool PickUpItem(InventoryItem item)
+  {
+    var isAdded = TryAdd(item);
+    if (isAdded)
+    {
+      BroadcastMessage?.Invoke($"{item.ItemName} picked up.");
+      item.QueueFree();
+    }
+    else
+      BroadcastMessage?.Invoke($"Could not pick up {item.ItemName}.");
+
+    return isAdded;
+  }
+
   public bool TryAdd(InventoryItem inventoryItem)
   {
     if (Items.Count >= _maxInventorySize)