[Ohrrpgce] SVN: teeemcee/9727 Remove line slices from the editor again. Still available in priviledged

[Ralph Versteegen]

On 23 November 2017 at 18:15, Ralph Versteegen <teeemcee at gmail.com> wrote:

>
>
> On 23 November 2017 at 17:38, James Paige <Bob at hamsterrepublic.com> wrote:
>
>> I was playing with them in the slice editor today. I like how they are
>> working.
>>
>> How hard would line thickness be to implement?
>>
>
> One benefit of having rewritten drawline is that thick lines could be
> implemented directly, rather than calling drawline multiple times.
>
> The problem is still what how to handle the ends. Even drawing filled
> circles at the ends is difficult, you can't just draw the line with a
> horizontal or vertical end edge and then draw a circle on top, because
> you'll have either a gap or a sharp edge sticking out.
> (We could have an option to draw squares, circles, or octagons at the
> endpoints, squares might be easiest)
> Also, I'm concerned that the apparent visual thickness of a line will
> change as it's rotated if the thickness setting determines as
> min(horizontal thickness, vertical thickness), because the perpendicular
> thickness is different. For the same reason, the size of the endpoint
> circles would change as you rotated the line. So I should we should add a
> correction.
>

I should think "I think we should"!


> So all in all, quite difficult.
>
>
>>
>> I was already thinking about how I might want to use them.
>>
>> One thing I want to try is to attach a lineslice somewhere, like, say, a
>> dragon's neck. Then I could attach the head as a child of the line. I could
>> move the head around using the slice  movement commands. Once per tick I
>> would update the lineslice's width/height setting them equal to the x/y of
>> the dragon head slice. That would get me a similar effect to your
>> anchor-to-xy idea.
>>
>
> Actually, it was your anchor-to-xy idea :)
>
> Whether line slices use the xy or the size or an internal data field as
> the drawline offset has a lots of consequences for how things like slice
> velocity, collision checking, parenting, filling, and well, everything
> really, work. So worth thinking more about. If you wanted to move the head
> with slice velocity commands then there would be one-tick visual delay
> because the script runs to update the size.
>
> As for using a line as a neck, this makes me wonder about lines with
> tapering thickness... it seems like it would be easy to implement.
>
>>
>> Anyway. I like the lineslices just fine so far. I think they are on the
>> right track
>>
>>
>> On Wednesday, November 22, 2017, Ralph Versteegen <teeemcee at gmail.com>
>> wrote:
>>
>>> We were discussing line slices and negative slice sizes here:
>>> https://www.slimesalad.com/forum/viewtopic.php?p=128795#128795
>>> And in a mailing list thread "Plan for LineSlice".
>>>
>>> While I'm fairly comfortable with how line slices work, there's still
>>> the possibility to change them completely. I tried some experiments with
>>> alternatives, like drawing to x+w-1,y+h-1, but found that giving zero or
>>> negative width/height different behaviour leads to a nasty glitch as you
>>> gradually change the size of the line slice.
>>> E.g. imagine that you want to create a dial. What you really want is
>>> direct access to drawline(), no crazy schemes for "encoding" and "decoding"
>>> the drawline parameters into slice attributes needed.
>>> But there are still other possibilities, such as discussed before, like
>>> making line slices have width/height 0, and draw a line from their anchor
>>> point to their x,y position. In other words, making their position instead
>>> of their size be the drawline offset.
>>>
>>> And anyway, I was being far too hasty in exposing this before we attempt
>>> to deal with negative slice sizes.
>>> Notice I also implemented a 'flipped' option which causes it to drawn
>>> between the opposite corners, but left it commented out.
>>>
>>> Also, I started implementing line slice commands,
>>> https://bitbucket.org/rbv/ohrrpgce/branch/lineslice
>>>
>>> On 23 November 2017 at 16:40, <subversion at hamsterrepublic.com> wrote:
>>>
>>>> teeemcee
>>>> 2017-11-22 19:40:32 -0800 (Wed, 22 Nov 2017)
>>>> 269
>>>> Remove line slices from the editor again. Still available in
>>>> priviledged mode
>>>>
>>>> Because I'm not totally comfortable with how negative slice sizes are
>>>> handled.
>>>>
>>>> Any existing slice collections will continue to work in-game... but they
>>>> will count as forbidden in the editor
>>>> ---
>>>> U   wip/IMPORTANT-nightly.txt
>>>> U   wip/sliceedit.bas
>>>> U   wip/whatsnew.txt
>>>> _______________________________________________
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>>>> http://lists.motherhamster.org/listinfo.cgi/ohrrpgce-motherhamster.org
>>>>
>>>
>>>
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>
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