Added new Signal to Function Pointer

[c-mahn]

This commit adds a new signal to the Function Pointer, that reports back, if the FunctionPointer is interacting with something like a menu.

[c-mahn]

I would like to add, that this is way simpler to understand than the undocumented XRToolsPointerEvent #670

[c-mahn]

I would love to get this merged please.

[BastiaanOlij]

Sorry @c-mahn , didn't see this till now.

It seems duplicate of the logic that is already handled by XRToolsPointerEvent but I agree that it's a little unclear how this works.

XRToolsPointerEvent manages events on the pointer interacting with another object.

When we look at the code XRToolsPointerEvent.moved(self, new_target, new_at, new_at), what is happening behind the scenes is that this creates a new XRToolsPointerEvent with the event data, and it will emit the signal pointer_event with that event as a parameter both on the pointer and the target.

So you can simply connect the pointer_event signal and you will get pointer events.

In your case you would want to react on event.type == XRToolsPointerEvent.ENTERED and/or event.type == XRToolsPointerEvent.EXITED