Best Player Tracker

This is my first ever mod and if you want to see it in more versions comment so I can see it is worth my time!

The mod is pretty simple you can craft a player tracker using the recipe below and it will allow you to use a new command /track {player name} which will comsume one of the player trackers in your inventory and give you a coordinate radius that the player name you input is inside of.

I made this mod pretty much because me and my friends enjoy playing minecraft against eachother and make secret bases but this sometimes gets stale when we never see eachother for a long time. When we tried other player trackers the tracking is either permanant with infinite range pointing exactly where they are or it was a range based compass. both of these were not exactly what we were looking for we just wanted to have an idea of where you can look for them and maybe narrow down to near where their base is.