Remove unnecessary text from 2020/ferguson1

It's still a lot of text but now it's a bit less to .. uh, swallow. One
file was removed as it really served no purpose other than to make the
documentation longer in a way that is not helpful.

Updated manifest.

Regenerated html files.

2020/ferguson1/.entry.json

@@ -281,14 +281,6 @@
 	    "display_via_github" : true,
 	    "entry_text" : "markdown source for gameplay.html"
 	},
-	{
-	    "file_path" : "halfwidth_vs_fullwidth.png",
-	    "inventory_order" : 4000000000,
-	    "OK_to_edit" : true,
-	    "display_as" : "image",
-	    "display_via_github" : false,
-	    "entry_text" : "image for bugs.md"
-	},
 	{
 	    "file_path" : "ioccc-cake.jpg",
 	    "inventory_order" : 4000000000,

2020/ferguson1/README.md

@@ -556,9 +556,9 @@ myself! Very much appreciated especially coming from an amazing programmer who I
 have huge admiration for!
 
 I want to thank Ilya Kurdyukov for his helpful comments, suggestions and
-reporting the problem about half-width/full-width char spacing. He's been
-playing with some versions of his own and will have them on GitHub after the
-2020 IOCCC winning entries have been published.
+reporting the (undocumented) 'problem' about half-width/full-width char spacing.
+He's been playing with some versions of his own and will have them on GitHub
+after the 2020 IOCCC winning entries have been published.
 
 Finally I want to thank Leo Broukhis, Simon Cooper and Landon Curt Noll for
 continuing to hold the contest after all these years - and for having selected

2020/ferguson1/bugs.html

@@ -143,7 +143,6 @@
 <li><a href="#middleofsnake">With negative growth the snake drops from the middle of the body</a></li>
 <li><a href="#buginsnake">It looks like the bug is in the snake</a></li>
 <li><a href="#bugplacement">On the safety of the bug placement loop</a></li>
-<li><a href="#verticalsnake">Vertical snake has more space between snake char than horizontal</a></li>
 </ul>
 <h1 id="built-in-test-unit-for-some-features"><a name="builtin-test-unit" href="#toc">Built-in test unit for some features!</a></h1>
 <p>Fun fact: There’s something of a built-in test unit for some features; much
@@ -315,37 +314,6 @@ cannibal mode it’s even less likely that you’ll ever run into this problem.<
 <p>The obvious question is why didn’t I put in a break? Because of the IOCCC size
 rule 2 and what would it do anyway? I guess it would win but to my mind that is
 a bug and I prefer putting in restrictions to try and make it very unlikely.</p>
-<h1 id="vertical-snake-has-more-space-between-snake-char-than-horizontal-snake"><a name="verticalsnake" href="#toc">Vertical snake has more space between snake char than horizontal snake</a></h1>
-<p>Ilya Kurdyukov also pointed out that depending on orientation of the snake there
-are different amount of spaces between the snake char ‘o’. This is what he
-had to say on it:</p>
-<blockquote>
-<p>Yes, it is the problem, space in character terminal is not isotropic
-from a viewer (gamer) perspective so one step up look like two steps
-right.</p>
-<p>MATE Terminal 1.20.0, and font “Ubuntu Mono Regular 13”</p>
-<p>But, as I said, there is no terminal problem itself, it’s because
-character tiles are not square (except for Japanese/Chinese, Japanese
-even have so called full-width English characters in their encoding,
-presented in UTF too).</p>
-<p><a href="https://en.wikipedia.org/wiki/Halfwidth_and_fullwidth_forms">https://en.wikipedia.org/wiki/Halfwidth_and_fullwidth_forms</a></p>
-<p>So the typical fonts are Half-width or close to it.</p>
-<p><img src="halfwidth_vs_fullwidth.png"></p>
-</blockquote>
-<p>However the function <code>mvaddch()</code> takes a <code>chtype</code> which amounts to a C char
-with additional information and so the full width <code>Ｏ</code>is too big for the
-function call. He reminded me of the old DOS box chars but even if this was
-easily duplicable (and it might be and I don’t remember) the logic would
-have to be changed for drawing the snake and in such a way that would change
-the source code layout too much - to say nothing else of the fact I have
-also forgotten some of what I did obfuscation wise (and the
-<a href="spoilers.markdown">spoilers</a> aren’t enough here!).</p>
-<p>That being said the font and font size does seem to have somewhat of an
-effect on it since his screenshots have wider gaps than mine.</p>
-<p>Once again thank you mate for bringing this to my attention and also playing
-with it and providing the resources! Much appreciated! (And although you
-suggested it is bugging me I once again here say it’s not at all bugging me
-but it is very much appreciated and it means a great deal to me. Cheers.)</p>
 <!--
 
     Copyright © 1984-2024 by Landon Curt Noll. All Rights Reserved.

2020/ferguson1/bugs.md

@@ -10,7 +10,6 @@ Current bugs and things that look like bugs but are not, as of 12 September 2020
 -   [With negative growth the snake drops from the middle of the body](#middleofsnake)
 -   [It looks like the bug is in the snake](#buginsnake)
 -   [On the safety of the bug placement loop](#bugplacement)
--   [Vertical snake has more space between snake char than horizontal](#verticalsnake)
 
 
 # <a name="builtin-test-unit" href="#toc">Built-in test unit for some features!</a>
@@ -269,46 +268,6 @@ The obvious question is why didn't I put in a break? Because of the IOCCC size
 rule 2 and what would it do anyway? I guess it would win but to my mind that is
 a bug and I prefer putting in restrictions to try and make it very unlikely.
 
-# <a name="verticalsnake" href="#toc">Vertical snake has more space between snake char than horizontal snake</a>
-
-Ilya Kurdyukov also pointed out that depending on orientation of the snake there
-are different amount of spaces between the snake char 'o'. This is what he
-had to say on it:
-
-> Yes, it is the problem, space in character terminal is not isotropic
-> from a viewer (gamer) perspective so one step up look like two steps
-> right.
->
-> MATE Terminal 1.20.0, and font "Ubuntu Mono Regular 13"
->
-> But, as I said, there is no terminal problem itself, it's because
-> character tiles are not square (except for Japanese/Chinese, Japanese
-> even have so called full-width English characters in their encoding,
-> presented in UTF too).
->
-> [https://en.wikipedia.org/wiki/Halfwidth_and_fullwidth_forms][]
->
-> So the typical fonts are Half-width or close to it.
->
-<img src="halfwidth_vs_fullwidth.png">
-
-However the function `mvaddch()` takes a `chtype` which amounts to a C char
-with additional information and so the full width `Ｏ`is too big for the
-function call. He reminded me of the old DOS box chars but even if this was
-easily duplicable (and it might be and I don't remember) the logic would
-have to be changed for drawing the snake and in such a way that would change
-the source code layout too much - to say nothing else of the fact I have
-also forgotten some of what I did obfuscation wise (and the
-[spoilers][] aren't enough here!).
-
-That being said the font and font size does seem to have somewhat of an
-effect on it since his screenshots have wider gaps than mine.
-
-Once again thank you mate for bringing this to my attention and also playing
-with it and providing the resources! Much appreciated! (And although you
-suggested it is bugging me I once again here say it's not at all bugging me
-but it is very much appreciated and it means a great deal to me. Cheers.)
-
 [crazy.log.md]: crazy.log.md
 [gameplay.md]: gameplay.md
 [troubleshooting.md]: troubleshooting.md

2020/ferguson1/index.html

@@ -595,9 +595,9 @@ programming abilities (and other abilities) even when I couldn’t believe in
 myself! Very much appreciated especially coming from an amazing programmer who I
 have huge admiration for!</p>
 <p>I want to thank Ilya Kurdyukov for his helpful comments, suggestions and
-reporting the problem about half-width/full-width char spacing. He’s been
-playing with some versions of his own and will have them on GitHub after the
-2020 IOCCC winning entries have been published.</p>
+reporting the (undocumented) ‘problem’ about half-width/full-width char spacing.
+He’s been playing with some versions of his own and will have them on GitHub
+after the 2020 IOCCC winning entries have been published.</p>
 <p>Finally I want to thank Leo Broukhis, Simon Cooper and Landon Curt Noll for
 continuing to hold the contest after all these years - and for having selected
 my entries. It’s a huge honour; thank you! I also happen to <strong>love</strong> your
@@ -666,7 +666,6 @@ email but I’m more likely to respond to mastodon messages.</p>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2020/ferguson1/.entry.json">.entry.json</a> - description of entry in JSON</li>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2020/ferguson1/gameplay.md">gameplay.md</a> - markdown source for gameplay.html</li>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2020/ferguson1/.gitignore">.gitignore</a> - list of files that should not be committed under git</li>
-<li><a href="halfwidth_vs_fullwidth.png">halfwidth_vs_fullwidth.png</a> - image for bugs.md</li>
 <li><a href="ioccc-cake.jpg">ioccc-cake.jpg</a> - image for chocolate cake</li>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2020/ferguson1/.path">.path</a> - directory path from top directory</li>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2020/ferguson1/spoilers.md">spoilers.md</a> - markdown source for spoilers.html</li>

tmp/manifest.csv

@@ -4157,7 +4157,6 @@
 2020,ferguson1,.entry.json,4000000000,true,json,true,description of entry in JSON
 2020,ferguson1,gameplay.md,4000000000,true,markdown,true,markdown source for gameplay.html
 2020,ferguson1,.gitignore,4000000000,true,gitignore,true,list of files that should not be committed under git
-2020,ferguson1,halfwidth_vs_fullwidth.png,4000000000,true,image,false,image for bugs.md
 2020,ferguson1,ioccc-cake.jpg,4000000000,true,image,false,image for chocolate cake
 2020,ferguson1,.path,4000000000,false,path,true,directory path from top directory
 2020,ferguson1,spoilers.md,4000000000,true,markdown,true,markdown source for spoilers.html

tmp/path_list.found.txt

@@ -4144,7 +4144,6 @@
 2020/ferguson1/crazy.log.md
 2020/ferguson1/gameplay.html
 2020/ferguson1/gameplay.md
-2020/ferguson1/halfwidth_vs_fullwidth.png
 2020/ferguson1/index.html
 2020/ferguson1/ioccc-cake.jpg
 2020/ferguson1/play.sh

tmp/path_list.manifest.txt

@@ -4144,7 +4144,6 @@
 2020/ferguson1/crazy.log.md
 2020/ferguson1/gameplay.html
 2020/ferguson1/gameplay.md
-2020/ferguson1/halfwidth_vs_fullwidth.png
 2020/ferguson1/index.html
 2020/ferguson1/ioccc-cake.jpg
 2020/ferguson1/play.sh

tmp/path_list.required.txt

@@ -3180,7 +3180,6 @@
 2020/ferguson1/chocolate-cake.md
 2020/ferguson1/crazy.log.md
 2020/ferguson1/gameplay.md
-2020/ferguson1/halfwidth_vs_fullwidth.png
 2020/ferguson1/ioccc-cake.jpg
 2020/ferguson1/play.sh
 2020/ferguson1/prog.2.c