Add support for "Collection of Images" tilsets

[ssbmtonberry]

Add support for "Collection of Images" tilsets

[SSBMTonberry]

Thank you for the issue!
You're right: "Collection of Images"-tilsets are not supported as of now. Mostly because I've never used it myself, and no one else has requested it, so I haven't really looked at it. I'll have to look into the details on how this can affect the Tile resolving and calculations that are done by Tileson on fixed size tilesets, but I'll put it on the 1.3.0 roadmap, and will look at it when I continue the work on this project 🙂 If it breaks the other features that makes Tileson convenient for fixed size tilesets, which I believe is the most common, I'll have to leave this unsupported, but I'll update this case when I have looked more into the details 🙂

[SSBMTonberry]

I'm sorry to hear that, @jakehffn !
I've added this detail to the README now to prevent others having the same struggle 🙂

[SSBMTonberry]

@jakehffn : I've added it to the next Release (1.4.0), but I haven't really looked at the details yet, and it's now more than a year since this was adressed. Sorry about that, but feel free to pick up this issue and create a solution. It will have to go through a review process either way, so it'll be fine 🙂 Just try to preserve as much features as possible when using collection of images vs tilesets. Also make sure you read the contribution guidelines before you start, to prevent common mistakes 🙂

Since this case is in the v1.4.0 features list, I would have a look at it eventually, but there are other cases I'm prioritizing first, and to be honest I haven't had much time working with this project lately, so any contribution really helps 👍 Assigning this case to you!

[jakehffn]

You should probably note that this is not available in the README lol. I've been troubleshooting why my project hasn't been working for a couple hours now. Good to finally get some resolution though.

[ufrshubham]

Man! Even I wasted some time trying to figure out what I was doing wrong😂. Guess I'll have to manually create a texture atlas of my collection of images.

[jakehffn]

@SSBMTonberry I'm thinking of working on adding support for collections of images, but thought I should ask if you've either already started, or already decided it would break too much to add support for this. Thoughts?

[ksdhans]

I've got collection of images working. No pull request yet, because there are no unit tests for it yet. Help creating those would be welcome.

master...ksdhans:tileson:master

[SSBMTonberry]

Thanks for sharing your changes, @ksdhans! 😄
Not sure if all the changes there can be used, as I must be sure all previous versions supported by Tileson will still work, but I'll make sure this feature gets fully implemented after Tiled 1.8 (almost done) and Tiled 1.9 support is finished.