No longer semi-telekenetic for on-wall objects.

During testing I noticed I was able to use most on-wall objects from 2 tiles away, (me > tile > wall) it's weird I never saw this before.

Any way, thinking of the most easy way to fix this, this seemed like a good way. Since every on-wall object, button and whatnot changes the pixel_ value, so you're most likely going to need to get closer.
Figured you guys may had some use for this as well. I guess it's not the best way to handle it, but that shouldn't really matter a lot.