I am trying to find a library to save my map in a .dmp format. However, I do not want to save the whole map at one time. If a player drops a weapon on the map, let's say, I'd like to save that one spot such that if I load the map later, the weapon will be there for another player to pick up. My map is a static size, and does not use dynamically generated 'fighting rooms' or anything like that which would increase the size of the map. I've looked through a couple of demos, including SwapMaps, but none of them seem to do what I'm looking for. Could someone put me in the right direction, or give me some ideas? Thanks in advance.