How to check if object collides with ANYTHING on object's

How do I...?
1

…layer?

I’m writing simple tile map editor so I’d like to know how to detect if object collides with anything on layer object is on.

2

Add an object group called “Everything”.
Check collision between your object and “Everything”. :slight_smile:

3

That’s not quite what I meant.

Let’s say there are layers A and B. On both layers there is same amount of objects (some objects have instances on both layer A and Layer B). When I make object on layer A, I want to check if it collides with object on layer A and no other layer. Same when I place object on layer B - I want to check collisions only with objects on layer B and no other layer.

Your solution would check for collisions on BOTH layers, which is unwanted.

4

Give each object a variable ‘layer’ and do = 0 for layer 0, = 1 for layer 1 etc. Then you can do this (pseudocode):

Create objectA on layer 1.
Do = 1 to variable layer of objectA

For each object ‘everything’
variable layer of object everything is = objectA.Variable(layer) |||| Action: Check for collision

5

Hm, kinda hacky, but might work.