fill with hex colors doesn't work about quil HOT 4 CLOSED

Hi
I've investigated this issue a bit and got following results: it's processing's issue, not quil's. For some reason in fill method is always expects color in ARGB format so if you want opaque color you have to set highest bits to FF: 0xFF0000FF instead of 0x0000FF (blue color). So if it were java adding explicit alpha part to color would be sufficient.

But we are using clojure here :\

The problem is following - value 0xFF0000FF is different in java and clojure:
java: 0xFF0000FF = -16776961 (int)
clojure: 0xFF0000FF = 4278190335 (long)

Quil tries to convert all values passed to fill method to int using int function. But clojure's int function doesn't allow overflows, so it throws exception if value is greater than max int (it's our case).

I found following ugly workaround: you can convert 0xFF0000FF to int using .intValue method of Long:

(fill (.intValue 0xFF0000FF))

from quil.

Wow! That's interesting. Layers and layers. It doesn't seem appropriate to workaround a bug two layers down. The difference between java and clojure makes me a bit uncomfortable. I like their choice better, but considering how important Java interop is, it seems like they should have stayed consistent.

Well, the workaround will be useful. Thanks for figuring it out and giving such a clear explanation. It seems this is not a problem with Quil as such, so I'm closing the issue.

from quil.

Can I suggest Quil use unchecked-int rather than int given that hex colours are part of the processing API?

from quil.

Thanks, it does solve the problem! I was wrong and it was quil's fault. Thanks for suggesting unchecked-int.

from quil.