[Ohrrpgce] Plan for LineSlice

[James Paige]

Oh! Right! All the slices will need attention for negative sizes. But I
will start with RectSlice.

The LineSlice project and the A* Pathfinding project are actually totally
unconnected. The idea of using lines to display path debugging info did
cross my mind, but I discarded it quickly.

For debugging, fuzzy rects with numbers with numbers will easier and more
useful.

For in-game display, it would be vastly easier and better to come up with a
sprite-based solution. I don't expect to try adding anything like that as a
built-in feature before whenever plotscripting gains support for arrays.





On Wed, May 24, 2017 at 11:15 AM, James Paige <Bob at hamsterrepublic.com>
wrote:

> Here I am going to talk out LineSlice before I actually start implementing
> it
>
> I think I have a pretty realistic chance of having time to do it sometime
> soon.
>
> I'm going to go with a simple slice.
>
> It will draw a line from corner to corner
>
> I figure I can have a toggle for whether it draws from 0,0 <->
> width,height or 0, height <-> width,0
>
> I plan to also test it will negative width and height, although I think we
> have an unresolved issue of inside-out-slices sizes being off-by-one, and
> we have to decided how to resolve that.
>
> I would like to be able to do horizontal lines without having to care if
> height is 1 or 0, and vertical lines without caring if width is 1 or 0.
>
> Should there be a toggle for making zero-width / zero height lineslices
> invisible?
>
> I will definitely be implementing convenience functions to set a line's
> position relative to screen points on other slices.
>
> I also really like the idea of being able to adjust line thickness, but I
> don't know the best way to go about that, especially regarding corners.
>
> Maybe we need some kind of function allmodex function to paint a thick
> line... maybe even a styled line using a 1xwidth sprite?
>
> I am not worried about thick lines or styled lines in the first
> implementation, I just want to think about it enough to avoid any blunders
> that would make adding those later more difficult.
>
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