public void setRef(Character way, int ref) {Cell c = at(way);if (c == null) {c = new Cell();c.ref = ref;cells.put(way, c);} else {c.ref = ref;}}
public void SetRef(char way, int @ref){Cell c = At(way);if (c == null){c = new Cell();c.@ref = @ref;cells[way] = c;}else{c.@ref = @ref;}}