How to exchange positions in the simplest way possible?

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- cogote
- - Joined 27 May, 2022
  - 19 topics • 52 posts
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- 28 Jul, 2025
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Could you help me create the event so I can swap the positions of the weapons between the red squares?

That is, if I place one weapon on top of another, they swap positions.

I placed three separate objects (gun1-gun2-gun3) and three spaces (space1 - space2 - space3).

I also created three global variables (posx - posy - GUN_ID).

I made it so that when I place a weapon on a square, the system saves its ID and position, but I don't know how to continue. ;C

HERE ARE IMAGES OF WHAT I DID

media2.giphy.com/media/v1.Y2lkPTc5MGI3NjExMzRhMmFudzBiNmRhb2M0ZHhmZWRzc2xqMzlkcTVya3B5N3E3Z3NhcCZlcD12MV9pbnRlcm5hbF9naWZfYnlfaWQmY3Q9Zw/89D6dIdxs29cQbPjLr/giphy.gif
Tagged:

construct2
swap
- dop2000
- - Joined 26 May, 2016
  - 144 topics • 13,527 posts
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- 29 Jul, 2025
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It's easier with families and instance variables.

dropbox.com/scl/fi/npuiuyccucqb6ul0hra6m/SwapGunsInSlots.c3p
If you are using C2, open the project in free version of C3 to see how it's made.
- cogote
- - Joined 27 May, 2022
  - 19 topics • 52 posts
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- 29 Jul, 2025
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It seems easy, but it isn't :v

Thank you very much, my friend. Very grateful.
- cogote
- - Joined 27 May, 2022
  - 19 topics • 52 posts
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- 29 Jul, 2025
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How do I create that empty space? Is it a blank sub-event? And where do I add it?
- dop2000
- - Joined 26 May, 2016
  - 144 topics • 13,527 posts
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- 30 Jul, 2025
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Yes, a sub-event without a condition. You can selected the parent event and press B. Or create any event and remove its condition.
- cogote
- - Joined 27 May, 2022
  - 19 topics • 52 posts
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- 30 Jul, 2025
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I did the same thing as the event and it didn't work for me :C

media0.giphy.com/media/v1.Y2lkPTc5MGI3NjExazlvYnIzeDBqN3lraXk2bGhnY3R6b3pqbTRhdjc4YTcwNGtqN213MCZlcD12MV9pbnRlcm5hbF9naWZfYnlfaWQmY3Q9Zw/BsdZSGY2z9V5GW3re1/giphy.gif
create the object family...put your instance variables and it still doesn't work ;C

I'm using construct 2 because I don't have the paid version of C3.
- dop2000
- - Joined 26 May, 2016
  - 144 topics • 13,527 posts
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- 30 Jul, 2025
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Did you set the correct values in slotID and slot variables for all sprites?

If this doesn't help, please share your project file.
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- cogote
- - Joined 27 May, 2022
  - 19 topics • 52 posts
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- 30 Jul, 2025
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I work with C2, here is a video of the project

youtu.be/Nr5Qi4foCGA
The instances are not visible in the video, I have attached a photo of them.
- cogote
- - Joined 27 May, 2022
  - 19 topics • 52 posts
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- 30 Jul, 2025
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drive.google.com/file/d/1_nRoOELNmKFGZI6_QclfhopJwisxZSAh/view
- dop2000
- - Joined 26 May, 2016
  - 144 topics • 13,527 posts
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- 30 Jul, 2025
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Look at the instance properties on the left panel - you need to fill in the values for slotID and slot instance variables. 1 for the first slot, 2 for the second etc. And the same for weapons.

You can do this manually in the editor, or you can do this with events, for example, when a new weapon is picked up, find an empty slot and assign the weapon to that slotID
- cogote
- - Joined 27 May, 2022
  - 19 topics • 52 posts
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- 30 Jul, 2025
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I fixed the issue of placing a number on the weapons and slots... now it works but not as it should...

When you first swap, 2 weapons are placed on top of each other and there is one space left over. When you move 1, it's now fixed and starts working properly. It's very strange.

youtu.be/VS3vXUd5ln0
- dop2000
- - Joined 26 May, 2016
  - 144 topics • 13,527 posts
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- 31 Jul, 2025
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That's probably because of this event:
+ System: On start of layout -> System: Wait 1.0 seconds -> gun: Set position to (slot1.X, slot1.Y) -> System: Wait 1.0 seconds

If you need to move guns to their corresponding slots, you need to pick the correct slot instance for each gun instance.

For each Gun Slot compare slotID=Gun.slot : Gun Set position to (slot1.X, slot1.Y)
- cogote
- - Joined 27 May, 2022
  - 19 topics • 52 posts
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- 31 Jul, 2025
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Finally, the event was able to turn out well... thank you so much for your patience :)

I added a Shuffle button to make it automatic.

youtu.be/22Ut3_iXEfs