multiple objects on one screen

Solar2D Lua Language
#1

Hi All,

 

I’m developing something like piano where there are several different objects in one screen and it should play it relative sound when some one touches the object.

 

My Question is:

 

Can I put Single screen with  all object embedded init (No layers only image) and have different touch events according to the co ordinates ?

or

Do I need to add all objects with touch events on a background screen?

 

This architecture should work for any screen size(different devices)

 

Sudheer

#2

Hi Sudheer,

Either approach would be possible, but the first one is probably easier and more appropriate.  When you touch a display object that has a touch listener, one of the things that gets reported to the listener is the coordinates of the touch.  That’s what you’d use to determine which note to play.

  • Andrew
#3

Andrew,

Thanks for the inpupt, but how to determine the co ordinates for different screen sizes, and what should be the generic image size which fits for tablets and phones?

Sudheer

#4

I’d suggest you read about dynamic content scaling and configuring your project for different screen sizes: http://docs.coronalabs.com/guide/basics/configSettings/index.html and http://www.coronalabs.com/blog/2012/12/04/the-ultimate-config-lua-file/ are good starting points.

  • Andrew
#5

Thanks Andrew

#6

Hi Sudheer,

Either approach would be possible, but the first one is probably easier and more appropriate.  When you touch a display object that has a touch listener, one of the things that gets reported to the listener is the coordinates of the touch.  That’s what you’d use to determine which note to play.

  • Andrew
#7

Andrew,

Thanks for the inpupt, but how to determine the co ordinates for different screen sizes, and what should be the generic image size which fits for tablets and phones?

Sudheer

#8

I’d suggest you read about dynamic content scaling and configuring your project for different screen sizes: http://docs.coronalabs.com/guide/basics/configSettings/index.html and http://www.coronalabs.com/blog/2012/12/04/the-ultimate-config-lua-file/ are good starting points.

  • Andrew
#9

Thanks Andrew