[Solved] Check collision with anything instead of just one object

How do I...?
1

I am making a city builder game and I wanted to know is there a way to check if an object collides with ANYTHING on the same layer (basically other objects like trees or roads)? I know you can just add it one by one but I don’t want my code to be bajillion lines long since I will add a lot of stuff later.
I have an object for display (so that you can see where it will be placed instead of placing it blindly) and I want to make it go red when you can’t place it there.
For now the only way I see is to make one condition for every object to check all the collisions.

https://cdn.discordapp.com/attachments/863001292796067860/1114591722761101372/image.png
This is how it looks like now only to check the collisions, it will only get worse because I plan on adding more stuff to the game.

2

I believe you could create a group, add all of the pertinent objects to the group and use the group name instead of all of the obiects seperatly.

https://wiki.gdevelop.io/gdevelop5/interface/scene-editor/#objects-groups-panel

I would have to test it to be sure… sometimes things don’t always work as expected when using instances. I’m not saying anything is broken, there’s just a method that’s not always obvious.

Edit: I tested this and it worked fine. All of the objects are in group, are draggable and have a “glow” effect named “EffectGlow” Since my example used the is being dragged I had to add a pick all objects because the drag condition “filtered” it to just the object being dragged.

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Try it:

3

Thanks, it works very well and I figured out how to implement it into my project

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