Encoding game variables into a save code!

This js code will convert game variables into a Nintendo-like "cheat" code

These are the variables that are stored in the code:

planetLoc: current planet (0-15)

mapLoc: current location on planetary map 0-4095 (64x64 grid)

bearing: 0-7 representing which of the 4 cardinal directions (NWES) or 4 ordinal directions (NE,SW,etc) player is facing. 0=N, 1=NE, 2=E, etc...

inventory: a 16-bit number that can be decoded into the map locations of up to 16 inventory objects

...and a 6-bit check digit

The code generation process will be the reverse of decoding:

Retrieve player progress (values stored in localStorage).

Convert values into binary segments following the same bit allocation.

Compute the check digit for validation.

Convert the full binary string into an alphanumeric code (using a Base64-like approach).

planetLoc 4 bits + mapLoc 12 bits + bearing 3 bits + inventory 16 bits + checkDigit 6 bits = 41 bits

Concatenating all values into a binary string:

0101 010011010010 110 0111100110000001

Sum of all 1 bits: 14
14 % 64 = 14
Check digit in binary: 001110

divide string of 1's and 0's into 6-bit chunks and convert each to a character from the Base64-like encoding table:
(ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/).

0=A, 1=B, 2=C, etc. the final code is "VNLPMCO"