🐛 can no longer water fields when watering can is empty

scripts/CSharp/Common/Farming/FieldBehaviour2D.cs

@@ -102,10 +102,13 @@ public partial class FieldBehaviour2D : Sprite2D
 
     public void Water()
     {
-        UpdateFieldState(FieldState.Watered);
-        _wateringParticles.Emitting = true;
-        WateringCanState.Water();
-        _wateringEvent.Raise();
+        if (WateringCanState.GetFillState() > 0)
+        {
+            UpdateFieldState(FieldState.Watered);
+            _wateringParticles.Emitting = true;
+            WateringCanState.Water();
+            _wateringEvent.Raise();
+        }
     }
     
     /// <summary>