Added open close inventory

scripts/CSharp/Common/Inventory/InventoryUi.cs

@@ -1,3 +1,4 @@
+#nullable enable
 using Godot;
 
 namespace Babushka.scripts.CSharp.Common.Inventory;
@@ -9,6 +10,9 @@ public partial class InventoryUi : Control
 
     private int? _slotOnMouse;
 
+    private bool _inventoryExtended = false;
+    private Tween? _inventoryExtensionTween;
+
     public override void _Ready()
     {
         GD.Print("Ready inventory ui");
@@ -59,9 +63,12 @@ public partial class InventoryUi : Control
 
     private void SlotClicked(int index)
     {
+        if (!_inventoryExtended) return;
+        
         GD.Print($"Clicked slot {index}");
         if (_slotOnMouse == null)
         {
+            if (_playerInventory.Slots[index].IsEmpty()) return;
             _slotOnMouse = index;
             GD.Print($"Slot on mouse: {_slotOnMouse}");
         }
@@ -74,4 +81,34 @@ public partial class InventoryUi : Control
             SetSlotContent();
         }
     }
+
+    public override void _Process(double delta)
+    {
+        if (Input.IsActionJustPressed("ui_inventory_open_close"))
+        {
+            _inventoryExtensionTween?.Kill();
+
+            _inventoryExtended = !_inventoryExtended;
+            if (_inventoryExtended)
+            {
+                //GD.Print("Open inventory");
+                _inventoryExtensionTween = GetTree().CreateTween();
+                _inventoryExtensionTween
+                    .TweenProperty(_slots, "offset_bottom", -100, 0.4)
+                    .SetTrans(Tween.TransitionType.Quad)
+                    .SetEase(Tween.EaseType.Out);
+            }
+            else
+            {
+                //GD.Print("Close inventory");
+                _inventoryExtensionTween = GetTree().CreateTween();
+                _inventoryExtensionTween
+                    .TweenProperty(_slots, "offset_bottom", 200, 0.4)
+                    .SetTrans(Tween.TransitionType.Quad)
+                    .SetEase(Tween.EaseType.Out);
+
+                _slotOnMouse = null;
+            }
+        }
+    }
 }