i got a recent request for an app.
The App itself is fairy simple. The user can grab 2D objects touching them.
Using two fingers, the user can scale and rotate those objects.
But now, the request demands to have multiple user to use the same app at the same time.
They all use the same screen, no multiplayer with multiple devices.
Is there any design concept for keeping track of multiple users?
Keep in mind that once you get above three (3) fingers onscreen at once, you run into the problem of inadvertently triggering the Apple device gestures, such as “bring up task manager” and “switch to next application.”