Resume in LMS to save progress on interactive slide

I am building an Interactive Map slide that has different pinned destinations. The pin has states on locked, and visited. In order to unlock the destination you need to enter a code, which I am doing using a number variable. So once you have the code (found in the course) you enter it on the map to unlock the next destination. I am using this as a visual as they progress through the course. However, the course isn't all in one SCORM file in my LMS. The map is it's own SCORM. As you discover the codes I have them return to this Map. But when resuming everything is resetting to the initial state.  Do I need to use variables instead of states? Or do I need to find a way to do this across multiple slides instead of all on one?