Changes

that are in [[container]]s, though the containers themselves are counted as items. Putting [[dirt]] into a pile of items and then removing the other items forms a [[pile of dirt]], which does not raise the tiles below it, allowing for easy storage. 4 items must be on a tile to spawn a pile of items, which appears as a topless wooden box with tools inside it. The pile appears differently if items of a single type are in the pile.