Kata

In two-player sequential games like chess, a ply is one turn taken by one of the players. However, in standard chess terminology, one move consists of a turn by each player; therefore a ply in chess is a half-move.

So, ply 0 is the first move of white, ply 1 the first move of black.

Write a function that takes a ply number and returns the move number.

For example:

calculateMove(0) returns 1
calculateMove(1) returns 1
calculateMove(2) returns 2
calculateMove(3) returns 2
calculateMove(100) returns 51