Hi!
When I watched the video I immediatetly thought that there also must be some integrated functionality in Unity to convert screen coordinates to world coordinates.
And after a very quick research I found out that there is indeed a built-in functionality.
I used
float mousePosInUnits = Camera.main.ScreenToWorldPoint(Input.mousePosition).x;
and this does the trick.
Why are you using an explicit formula here?
Hi Thomas,
Your question may be better suited for the Q&A on Udemy as you are more likely to get a response from the instructor there than here - just for future reference etc.
I’ve not seen the code myself for the alternative, manual, approach but I suspect it may just be to introduce students to things gradually.
That said, why don’t we tag @Rick_Davidson and see if he has an opportunity to chime in and share with you his reasonings 
Yep, good question. There are often many ways to skin a cat so to speak and personal preference is often the reason why. We do both ways in various stages in this course - the approach we used in this first instance was just to make it clear about what is going on, not necessarily that it is better.
Thanks for your reply Rick, that’s what I imagined
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