I'm trying to turn positional tracking off, and I believe that this function in the aframe code is what I'm after:
checkHasPositionalTracking();
However, in my second js file (which is defined AFTER aframe.js), if I try to call that function, I receive this error:
Uncaught ReferenceError: checkHasPositionalTracking is not defined
You need to call it with full reference to the window.AFRAME browser global, so use AFRAME.utils.device.checkHasPositionalTracking ()
in your code to access it.