Is there a way to make a slow parent in GameDevelop? So if one object moves, another follows its movements but at a delay?
About movement, you could use All Objects ==> Displacement ==> Add a force so as to move to an object or
…All Objects ==> Displacement ==> Add a force so as to move to a position
Both action take a parameter Length (works as force amount or speed), and Damping (friction).
I you add an event: Always ==> Move B to A with a force of 100 pixels (Damping = 0), the object B will “follow” A with a speed of 100 pixels per second 
If you want the tracking speed depends on the distance, you have to play with the Length parameter and the value of the square distance between A and B.
Thank you for the reply! Yeah, that’s what I ended up doing. And I think it works okay!
What’s the difference between using normal distance and square distance?
Excuse me 
The real distance is the Distance function (it returns the distance between the center points of the objects, I have been playing a bit with this feature to know from what point to point the distance is measured).
The square distance is… the square distance = distance² (sorry, I told you about this function because I use this usually, It has some maths properties 
)