McArdellje

// original:
// https://ameye.dev/notes/unity-circular-menu/
// https://gist.github.com/alexanderameye/1eef648d7d1699a9548bc2de3dde2a45

// improvements:
// - can now set "Priority" on buttons to be able to give them explicit ordering
// - instead of pressing the menu keybind or clicking on the actual button of an item, clicking and pressing the keybind have the same effect and trigger the currently highlighted item
// - you can "trigger item" with your cursor in the center of the menu to dismiss the menu (just like you can do in blender)
// - hovering over the center of the menu or any of its buttons no longer "locks up" the menu
// - menu will no longer trigger when moving to the left (default bind was A but it didn't check if you were using the right-click fly cam so the menu would open up any time you pressed A, including when moving)