How do I generate objects in order between other type of objects.

On level there are located lots of objects (named choosearea). This object has instance variable "sequence". What I want to do is, on start of layout to generate another type of object (named coinreal) between each 2 choosearea instance with adjacent "sequence" values. (for example, object "coinreal" should be spawned between objects "choosearea" with "sequence" values 1 and 2, 2 and 3, 3 and 4 etc.)

On illustration below I show how it should look:

At first I thought it will be easy to do, but something is wrong with the "for loop" I made. (nothing happens at all). This is probably very trivial, but im kinda confused right now :(

The issue you’re seeing is you cannot pick two separate instances of an object like that.

One common solution is to use a family with just that type. But you’d need to only add instance variables to the family.

For each sprite
Other: instance = sprite.instance+1
— create spriteB at (other.x+sprite.x)/2, (other.y+sprite.y)/2

Var otherx=0
Var othery=0
Var otherInst=0

For each sprite
— set otherx to sprite.x
— set othery to sprite.y
— set otherInst to sprite.instance
— pick all sprite
— sprite instance = otherInst+1
— — create spriteB at (otherx+sprite.x)/2, (othery+sprite.y)/2

The issue you’re seeing is you cannot pick two separate instances of an object like that.

One common solution is to use a family with just that type. But you’d need to only add instance variables to the family.

For each sprite
Other: instance = sprite.instance+1
— create spriteB at (other.x+sprite.x)/2, (other.y+sprite.y)/2

Another idea is to pick one, save the data you need to variables, use “pick all”, then pick another.

Var otherx=0
Var othery=0
Var otherInst=0

For each sprite
— set otherx to sprite.x
— set othery to sprite.y
— set otherInst to sprite.instance
— pick all sprite
— sprite instance = otherInst+1
— — create spriteB at (otherx+sprite.x)/2, (othery+sprite.y)/2

Thanks man! Family solution totally works.