Pushing rock events over switches to activate

[urbanastronomy]

I'm not sure if this question has already been asked (I skimmed the thread and saw nothing).  I'm using RM2k, cause I'm old skool, and I'm looking to install switches on the floor of a dungeon that can only be activated by pushing rock events on top of them.  This was done in Blades of Heaven, but I can't figure out how.  Do I need to run a script or use 2k3, or is there some bending I can do with events in RM2K?

[Red Giant]

What you need to do is record the position of the rock. Make a parallel process event and two variables named, like, RockX and RockY. Always set RockX to the rock's x-position and RockY to the rock's y-position. For the success event, make another event or fork which is activated by the Rock's X and Y position being identical to the switch's.

[urbanastronomy]

Will do.  Thanks very much.

[urbanastronomy]

Ok - I'm stuck again.  How do I get the variables I set for the rock's X and Y positions to change each time the character moves the rock?

[urbanastronomy]

nm - got it.  Thanks again.