How To Make a Trace Letter or Number game for mobile devices ?

Hi everybody

I have a simple idea of a mobile game, nothing too special, but I'd like to add the ability to trace letters within it. I've seen this done by several other games in playstore, and I have no idea of how to accomplish it, however if anyone has a method...perhaps you wouldn't mind sharing it? Or pointing out a video tutorial cause i didn't find any.

Before I post this thread, I done a lot of research but i couldn't find a good tutorial or explanation.

Here are a game implementing the trace letter :



Thanks!

 

did you find any solution?

 

I have you tried using a slider or put a background behind it? On my UI controls I use a slider and you can do close to the same thing. You might try experimenting using a sprite mask

 

oops, a SpriteMask with a background Sprite Texture