0.15.13 Blueprint book scrolls backwards

[DaveMcW]

Steps to reproduce:

1. Pick up a blueprint book with 3+ blueprints.
2. Press Shift + Mouse wheel down.

Expected result:
The active blueprint is increased by 1.

Actual result:
The active blueprint is decreased by 1.

[posila]

What do you mean? Some value exposed to Lua API? "Shift + Mouse wheel up" goes to next blueprint, "Shift + Mouse wheel down" goes to previous blueprint. It has beem like this since the feature was introduced.

[DaveMcW]

It has beem like this since the feature was introduced.

That doesn't make it any less wrong.

Mouse wheel down should go to the NEXT blueprint.

Just like mouse wheel down on this page goes to the NEXT post.

[robyoublind]

Mouse wheel down should go to the NEXT blueprint.

Just like mouse wheel down on this page goes to the NEXT post.

I agree. It's one of twelve or so irrational keymappings that Factorio has by default. But blueprint books/library are so counter-intuitive down to the smallest details (like the main library panel being on the right) that it doesn't surprise me in the least that mouse wheel works in the opposite way to every other use of mouse wheel on PC.

[MasterBuilder]

That doesn't make it any less wrong.

Not wrong, it' just subjective.

Mouse wheel down should go to the NEXT blueprint.

I disagree. Intuitively, I expect up to be next & down to be previous. I'd make a bug report to change it back if it was altered.

Perhaps a happy middle ground is a keybinding for next/previous?

[Rseding91]

Perhaps a happy middle ground is a keybinding for next/previous?

That already exists