Interactive injection site challenge

Hi there- just testing this out and need a few pointers (pun intended).

I'm making a simple interaction for vaccinators to see if they are placing the needle tip on the right location. 

I've enabled them to drag and drop the group that has the syringe and the needle tip. What I need to work out is how to provide feedback when they drop the syringe, based on where the hidden object 'needle tip' is.

if it is in the 'correct' hot zone then display correct layer

if in the 'too high' hotzone then display layer 'too high' and try again

if in the 'too low' hotzone then display layer'too high' and try again.

after three tries if 'correct' not achieved, then  display Correct,- too many tries 

here's the rough look at it (placeholder images only.) https://360.articulate.com/review/content/99344b27-8bdd-47cc-9c44-364b5bbe0989/review

and attached the articulate file- is that what I'm supposed to do :) ?

appreciate any pointers on this please- existing threads okay of course.

many thanks

 

Theo