This is probably best explained by example; say you have a treasure map or something that requires the player to move to an X on the map and interact.
Say I have Event A located at (005, 005). It's a picture of an X.
When you interact with Event A it says "go down 5 spaces", turns invisible and moves to location (005, 010).
When you interact with it again it says "move right five spaces", moves to location (010, 010).
When you interact with it again it reveals a treasure chest or something.
Obviously, as the event is invisible, it's essential the player move to the right spot to interact and get the next set of instructions.
My problem is that, whenever you change maps, the event goes back to (005, 005). It doesn't matter what stage of the process you are up to so, theoretically, you could find the chest at (010,010), leave the screen, come back and the open chest would be at (005,005). More importantly, if you were following the instructions, you would lose the point of reference. So, say you did step 1. You then left the screen and came back. You'd expect to continue at (005,010) however the invisible event would now be at (005,005).
I did a bit of searching but came up blank. Probably just not using the right search terms as I'm sure someone must have raised this before.
Can anyone help?