Some style stuff, for terseness, you can do things like change - move(left, State) -> move(getVector(left), State); move(right, State) -> move(get

Some style stuff, for terseness, you can do things like change - move(left, State) -> move(getVector(left), State); move(right, State) -> move(getVector(right), State); move(up, State) -> move(getVector(up), State); move(down, State) -> move(getVector(down), State); move(Vector, State) -> ... to move(Direction, State) when is_atom(Direction) -> move(getVector(Direction), State); move(Vector, State) -> ...