coordinate 1 ^ coordinate 31

This code takes a 32-bit signed integer coordinate as input and performs a bitwise left shift by 1 bit (equivalent to multiplying by 2) and a bitwise right shift by 31 bits (equivalent to dividing by 2^31). The result of both shifts are then XORed (exclusive OR) together, resulting in a new 32-bit integer value.

The purpose of this code is not clear without more context, but it appears to be a way to manipulate the input coordinate value in a specific way.