CODEWITHSUNDEEP
javalibgdxmulti-touchmt4j
schmop
schmop

Reputation: 1440

cross platform multitouch and graphics in Java with libgdx and mt4j

I have a cross platform application built with libgdx. The software is often used in conjunction with large touchscreens (like the microsoft coffee table thingy) with Windows (7 & 8) and MacOS. These screens are multitouch capable but I've only implemented single-touch, and would like to take the leap to multi. I'm asking a few questions here in case someone knowledgeable could spare me a bunch of hours testing hypothesis that are undocumented and un-googleable AFAIK:

-does libgdx support the win7 multitouch interface? win8?

-if I must resort to mt4j, can it be used WITHOUT the 3d engine layer? Heck I don't even need gesture recognition, just the low level state of the fingers. There is no way I'm replacing 10000+ lines of libgdx with mt4j!

-has anyone tried sparsh-ui as an alternative to mt4j? Does it support win7 multitouch?

Thanks for any bit of information that can be provided on these matters! Cheers!

Upvotes: 4

Views: 428

Answers (1)

Robert P
Robert P

Reputation: 9793

As far as i know there shouldn't be a problem with multitouch. For libgdx mouse presses and touches are the same thing, so there shouldn't be a problem for win7 and win8.
The touchDown, touchUp and touchDragged methods give you an int pointer, which describes the number of the touch. So if you touch with 4 fingers, the touchDown with pointer = 4 describes the touch of the 4th finger. You can read something about that here.
Note that i did not test this, as i don't have a win7/8 touch device. So you have to test it yourself, but as i said it should work. Let me know if it worked. Thanks

Upvotes: 1

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