Static/semi mode on touch devices creates new nipples or are not dragable

[andersHj]

Very cool library, but have some issues on touch devices in static and semi mode

On Ipad Air 2, new instances will be created on each touch also in static and semi mode.

On Sony Z2 Tab, most of the time it will not create a new instance, but often the existing instance is not working/dragable (this could be reproduced in chrome developer console by using touch device mode).

[yoannmoinet]

Thanks a lot for this.
I'll look into it soon enough.

[blq]

Also noticed this.
Seems like the identifier id collides, resulting in multiple instances of "nipple_0" etc causing great DOM confusion.

[yoannmoinet]

This should have been fixed in 0.5.4
Can you confirm it?

[blq]

No. When I create two static nipples they both get id=0. My case is a simple gamepad style setup. Two simultaneous touches and zombie clones occur.
Line #639 "mode == 'static'" seems to always pass identifier as 0?

[yoannmoinet]

Indeed, there is still a nasty bug... once again with multitouch 😞

It looks like it's because of listening / stop listening to events that is somehow un-sync with the mode in use.

Working on it.

[yoannmoinet]

0.5.6 should be better with multi-touch.

[blq]

Slightly better, no clones appear. But still, the id is duplicated to 0. When touching both one locks up and freezes. I believe this is a bug in the "static" mode?

As said, isn't a good use-case a gamepad setup? Two side-by-side containers with one static-mode nipple-joystick in each.

[yoannmoinet]

Can you show me some code sample so I can reproduce your setup?

[blq]

var joystickL = nipplejs.create({
    zone: document.getElementById('left-pad'),
    mode: 'static',
    position: { left: '20%', top: '50%' },
    color: 'green',
    size: 200
});

var joystickR = nipplejs.create({
    zone: document.getElementById('right-pad'),
    mode: 'static',
    position: { left: '80%', top: '50%' },
    color: 'red',
    size: 200
});

[yoannmoinet]

Thanks, I'm looking into this... for sure there is a problem with the lib.
In theory it should have worked.
But it obviously doesn't. I think I have to refactor some stuff.
I'll keep this thread updated.

[blq]

Great, thanks!

[andersHj]

Thank you for fast fix!
It now works for my use case on Ipad.
Would be great if it worked with several instances as well.

[yoannmoinet]

Please note that there is an opened issue for the multi-instance problem #20.