The Gary class is subject to C++ unit testing and therefore hasstricter requirements for composition. Each required memberfunction will be denoted. (
1) Gary shall be constructed with a parameterized constructoraccepting an unsigned integer input parameter representing the sizeof the board (denote here as BoardSize). Assume that BoardSize isodd! Gary shall initialize his position to be the middle cell ofthe board, e.g., if the BoardSize is given as 5 Gary would beinitialized at index (2,2).
(2) Gary shall contain public member functions which return anunsigned integer type and accept no input named Gary::get_row() andGary::get_col() which return Gary's row and column position on theboard respectively.
(3) Gary shall contain a public member function which returnstype void and accepts a Cell pointer called Gary::move(Cell*) whichshall (a) alter Gary's orientation based on the Cell's color (b)change the Cell's color (c) move Gary one unit forward in the neworientation
(4) Gary shall contain a public member function which returnstype orientation (defined as an enumeration enum orientation {up,right, down, left};) and accepts no input parameters calledGary::get_orientation()
