Function pointer doesn't work for both hand tracking and controllers

[goatchurchprime]

The default active_button is VR_TRIGGER.
https://github.com/GodotVR/godot-xr-tools/blob/master/addons/godot-xr-tools/functions/Function_pointer.gd#L27

However, when the system converts to hand tracking, the standard index-finger-to-thumb gesture comes in as VR_BUTTON_4.

This means this feature needs to accept at least two button codes, or the hand tracking module should return code VR_TRIGGER for this gesture.

[BastiaanOlij]

Hmmm, my gut feeling is that it makes most sense if the hand tracking returns VR_TRIGGER seeing we'd have similar compatibility issues moving between controller and hand tracking...

[BastiaanOlij]

In OpenXR 1.0.28 this was added: https://registry.khronos.org/OpenXR/specs/1.0/html/xrspec.html#XR_EXT_hand_interaction

We'll soon add support for that upstream and this will allow the action map to drive XR Tools when hand tracking is active.