1) Thanks! I never noticed that...
2) You misunderstand what I'm saying. If, say, the player is pulling a switch, there are four places from which he/she can do that, from above, below, right or left. How do I ensure that, no matter what place the player might be, he/she will always end up in the very place he was on the first map?
Okay, that was confusing. Say you wanted a parallel process that transfers the player to another map with the corresponding coordinates when the CTRL button is pressed? In that case, the player could have any coordinates.