Tile-based engines and items

1

I have been working on a top-view tale based rpg. I have the tiles for the map in place, and with the exception of random lines between tiles working properly. I cannot figure out the code to put in the items… I need two different types of items, One would be interactive… in which you could use these items for resources. The other would be collectable items. I suppose that i could just have the interactive items put the collectable items in the inventory. Either way i am in need of help putting items into the game… ant and all help appreciated, thanks.