Allow clicking on Abacus balls to move it

[satyamchaudharydev]

For now, we have to drag balls which is requires bit effort and is error-prone.

It would be great if we can move balls by just clicking on them and it would also be better for mobile and touch users.

[aditigupta17]

I am interested in working on this. Is anyone already working on it?

[llaske]

Cool. Let's go.

[aditigupta17]

Which file in particular is to be modified?

[llaske]

Guess it should be in https://github.com/llaske/sugarizer/blob/master/activities/Abacus.activity/js/abacusbead.js#L88
Try to debug to understand how it works.

[utkarsh-raj]

#181 (comment)

The changes proposed by @llaske are intuitive, more than the current behaviour. I would carry the work forward by @aditigupta17 to incorporate the proposed behaviour. Any ideas for still better behaviour ? (Since the issue has been open for quite a long time)

[llaske]

Like I said, we could propose an automatic move on click/tap when there is no doubt about the direction expected and let the drag gesture - since double-tap is not intuitive - when it's not possible to do the deduction. It should be tested.

[utkarsh-raj]

#277 (comment)
I have opened a PR with some changes. Can you look and see if it feels intuitive @llaske ?

[llaske]

Fixed by #146

[llaske]

Closed in dd3c58d