In the “Official” forum, Kaverman asked about X-Drive code for RobotC as part of their “natural language” set.
While I’m all for shortcuts, the “X-Drive” or as it’s better known the “Holonomic Drive” is pretty simple to code. On the VEX metal side, Cory a long time VEX builder has posted a video series on the drive, how / why it works and the code to make it work.
I highly recommend it. The final code is a few lines and can easily be included in your robot code.