scrolling stack I made
J. Landman Gay
jacque at hyperactivesw.com
Thu May 23 14:35:18 EDT 2013
On 5/18/13 5:04 AM, Colin Holgate wrote:
> While at the conference I found time to figure out a couple of
> things. I used arrays for the first time (in LiveCode that is), and I
> found hardware acceleration settings that worked well.
>
> The test I did was to have a scene doing parallax scrolling. The
> initial scene is made up of five slices, each 1024 wide, and
> significantly tall too. Those need to be on the card twice each, so
> that you can scroll the second copy into view as you move. That went
> well enough, so I added 101 LC logos to the scene, and it still moved
> well.
This is pretty amazing. We took an extra week in Scotland after the
conference, and very little internet access, so I just now had a chance
to look at the stack. I'm really impressed.
The only thing I'd add is a closestack handler that stops the pending
messages when the stack is closed. I noticed the fans in my iMac went
wild and LiveCode was using 100% of the CPU, which I tracked down to
pending messages. I suppose that isn't an issue on mobile but on desktop
things get quite lively. (For some reason it kicked Finder into 100% CPU
too, so I had 2 processes going full speed for a while. I had to
relaunch Finder to get it to stop.)
Still, the effect was worth it. :)
--
Jacqueline Landman Gay | jacque at hyperactivesw.com
HyperActive Software | http://www.hyperactivesw.com
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