https://en.cppreference.com/w/cpp/string/byte/isxdigit isdigit and isxdigit are the only standard narrow character classification functions that are n

Align to prepare for writing a scalar with a certain size.

These wind up calling CallLevelFunc, which is where all error checking is.

TODO: Include snowmobile gun in GetAmmo(), otherwise the player won't be able to shoot while controlling it. -- TokyoSU 2023.04.21

Convert an integer value to a hexadecimal string. The returned string length is always xdigits long, prefixed by 0 digits. For example, IntToStringHex