Gameplay testing, feedback for the new GD feature

GDevelop general
1

I love it! :heart:

I’ve had a bug in my project for a long time that only happens sometimes. I looked at my events and couldn’t find anything wrong.

I just used the gameplay test and it found a possible cause, ran multiple tests to check, applied the fix, ran more tests and then reported back it was solved. Amazing.

Please note, one part of it was in french: SourisSurObjet(ClickableObject)

Also, at the end of it I wasn’t sure what had actually happened, that is, did it apply the fix and change my events. I had a look at the events and the change seemed to be there so I asked the ai to make sure and yes it had made the change to my events. My feedback for this is it would be great if it had a before and after view of the events in the test page. That would make it easier to learn from and to be sure of what my actual problematic events were.

Here is the summary of the diagnosis to show that it only happened sometimes and thus was difficult for me to work out the problem and how happy I am that it’s now solved.

Found and fixed the bug. Here’s what was happening:

The cause — In the group Drag clickable object, the release event (event-11.9) only reset Dragged = False when the cursor was over the object at the exact moment the mouse was released:

if SourisSurObjet(ClickableObject) and MouseButtonFromTextReleased("Left") and once

If the cursor wasn’t over the object in that release frame (the object had jumped out from under it, or the cursor landed over a different clickable in the group, which then got reset instead of the dragged one), the event never fired — so Dragged stayed true and the object kept following the cursor.

2

Great …glad you sorted it!
It’s interesting that it refers to events number 11.9 - im assuming its event.subevent. There was a request for showing event numbers - so they must be already being numbered.
Its given a very detailed reponse - i’ve still never used it …and i do have some tricky bugs to iron out!

3

I don’t actually know what the 11.9 refers to. I couldn’t align it with the number of events in the group or line numbers. I was wrong. It was my 11th event group and the 9th event in the group.

I’ve used the ai help about once every six months and it has got much much better each time. Today’s result was so good, I’ll definitely make more use of it. It probably would have found the bug without the gameplay part. The gameplay test’s real value will be in it writing tests that you specify and then you run your different tests every so often to make sure new stuff doesn’t interfere with old stuff.