alter vatter

MeetingControl.cs

@@ -11,7 +11,11 @@ public partial class MeetingControl : Control
     [Export]
     public MeetingPhysicsBox MeetingPhysicsBox;
 
-    public bool InSlot { get; set; }
+    private MeetingControl otherMeetingControl;
+
+    public bool DragIsHandled { get; set; }
+
+    public bool ForceDragged { get; set; }
 
     public override void _Ready()
     {
@@ -25,34 +29,69 @@ public partial class MeetingControl : Control
         SetDragPreview(preview);
         Visible = false;
 
-        InSlot = false;
+        DragIsHandled = false;
+        ForceDragged = false;
 
         return Variant.From(new MeetingControlDragData(this));
     }
 
+    public override bool _CanDropData(Vector2 atPosition, Variant data)
+    {
+        return data.VariantType == Variant.Type.Object
+            && data.AsGodotObject() is MeetingControlDragData;
+    }
+
+    public override void _DropData(Vector2 atPosition, Variant data)
+    {
+        var meetingData = (MeetingControlDragData)data;
+
+        otherMeetingControl = meetingData.MeetingControl;
+        var otherParent = otherMeetingControl.GetParent();
+
+        otherMeetingControl.Reparent(GetParent(), false);
+        Reparent(otherParent, false);
+
+        otherMeetingControl.Visible = true;
+        otherMeetingControl.DragIsHandled = true;
+
+        if (otherMeetingControl.ForceDragged)
+        {
+            RespawnPhysicsBoxFromSpawn();
+            otherMeetingControl.ForceDragged = false;
+        }
+    }
+
     public void StartDrag()
     {
         var preview = CreatePreview();
         var data = Variant.From(new MeetingControlDragData(this));
 
         ForceDrag(data, preview);
+
+        DragIsHandled = false;
+        ForceDragged = true;
     }
 
     public override void _Notification(int what)
     {
+        // Notfall respawn
         if (what == NotificationDragEnd)
         {
-            if (InSlot)
-            {
+            if (DragIsHandled)
                 return;
-            }
 
-            FindParent("Main").AddChild(MeetingPhysicsBox);
-            MeetingPhysicsBox.Position = GetGlobalMousePosition();
-            QueueFree();
+            RespawnPhysicsBoxFromSpawn();
         }
     }
 
+    private void RespawnPhysicsBoxFromSpawn()
+    {
+        var main = (Main)FindParent("Main");
+        main.AddChild(MeetingPhysicsBox);
+        MeetingPhysicsBox.Position = main.MeetingSpawn.GlobalPosition;
+        QueueFree();
+    }
+
     private Control CreatePreview()
     {
         var copy = Duplicate() as MeetingControl;