Cascades Development

[Irina_p]

Hi, I have png image sequences in my asset folder, and I would like to "play" it. Is it possible to do that?

Thanks

[Irina_p]

Maybe the relevant question should be, Is it possible to create an Animated sprite within a Cascades application?

[peter9477]

The latest version supports animated GIF files, so you could just use some third-party tool to build an animated GIF out of your images, and then use that. I haven't used it myself so I don't know the degree to which we have any control over it.

If that doesn't work, you could simply use a QTimer and modify the source for your image repeatedly... that ought to work similarly though perhaps with slightly more overhead.

The term "Animated sprite" suggests maybe that you're looking at doing a game... that may imply other constraints (performance) which will affect your choice and what options are most suitable.

[Irina_p]

Thanks for the reply peter9477,

Animated gifs would do, except I need to control the playback, and gif only supports 256 colors which is not good enough.

Now that you mention it, I am not doing a game, but some kind of "Entertainment App" sort of thing.

It strikes me, is it possible to use cascades along with cocos2d-x in my app??

It might be an "overkill" but I dont think that there's any alternative solution left.

[peter9477]

You may be able to do something like that, using a ForeignWindowControl. This is outside my area of expertise but maybe someone else with more knowledge there can chime in.

[igosoft]

Hi

How many frames per second you would like to be rendered ?

How smooth it should be ?

How many png images do you have in your assets folder ?

Are you planning to use more then one "animated sprite" ?

[lew · Accepted solution]

depending on the number of images, quality of images and delay between each image, you could probably get away with simply using a QTimer.

although i haven't tried that with cascades/bb10, i did that with older BBOS and almost never ran into performance issues ...

in a nutsheel, store an array of images....then configure your QTimer (ex. every 1 second) to display images from this array using a circular counter.

[Irina_p]

@igosoft, about 10 fps. Only one "sprite" 

[Irina_p]

@lew, nice suggestion, if the old OS could handle this, it should be not a problem for OS 10. thanksss