feat(follow): Add option to follow thumbstick

[emepetres]

When follow option is set to true, the joystick follows the pointer when it reaches its border.

This is meant to improve usability on touch screens, when the user doesn't have the feedback of getting out the joystick zone.

[yoannmoinet]

Hey thank you for this, I'll have a look.

[yoannmoinet]

I've tested it, the movement is great and all, works exactly as expected.
Well done. (Even tested with the square shape, and it's working 💯)

But there seems to be an offset somewhere as soon as I reach the border of the back piece.
Not sure where it is coming from.

Screen.Recording.2021-02-22.at.11.00.04.mov

[emepetres]

Yep the offset is weird, in my project I set the zone to a specific div and it works as expected. Must be something css related, I'll take a look.

[yoannmoinet]

It's probably the offset of the area to which the joystick is attached too.
If the area is top left, you won't have an offset I guess.

[yoannmoinet]

@emepetres I have a fix, which also fixes other things I believe.
Do you mind if I commit in your branch?

[yoannmoinet]

I went ahead and fixed it.
Thank you very much for this addition.
It will please and fix #13 😉

[matthewrobb]

Thank you both!

[emepetres]

sure thanks @yoannmoinet! I couldn't find time today to fix it, glad you did :)