#Tag · bonfire.cafe

Mark Moxon

Have you ever wondered how big the full landscape is in The Sentinel?

It's 1856 pixels high and 2048 pixels wide.

Here's the first level. The initial 192x160 screen is in red. Panning jumps the view to different grid points.

It's a big old world!

So the game screen shows shows 1/9.7 of the full height and 1/12.8 of the full width of the landscape.

The weird figures are because the screen is a different shape to the full view.

Also visible is the point carée equirectangular projection used in the game. This is taken straight from Revs.

For those who don't know, The Sentinel is a classic game from 1986, written by Geoff Crammond and published by Firebird.

It was originally released on the BBC Micro, and was converted to lots of other home computers, including the Commodore 64, ZX Spectrum.

See https://thesentinel.bbcelite.com/ for more.

#retrocomputing #retrogaming #bbcmicro #c64 #8bit

2 media

The first level in The Sentinel showing grid points for panning and the first screen in red

Nik and 1 other boosted

Mark Moxon

@markmoxon@universeodon.com · 2 weeks ago

I am delighted to announce the release of my latest project:

Fully documented source code for The Sentinel, Geoff Crammond’s 1986 masterpiece.

Here’s the repository; deep dives coming soon.

See thread for details.

1/9

https://github.com/markmoxon/the-sentinel-source-code-bbc-micro

#retrocomputing #retrogaming #bbcmicro #c64 #8bit

GitHub

GitHub - markmoxon/the-sentinel-source-code-bbc-micro: Fully documented and annotated source code for The Sentinel on the BBC Micro

Fully documented and annotated source code for The Sentinel on the BBC Micro - markmoxon/the-sentinel-source-code-bbc-micro

Mark Moxon

@markmoxon@universeodon.com · 2 weeks ago

I am delighted to announce the release of my latest project:

Fully documented source code for The Sentinel, Geoff Crammond’s 1986 masterpiece.

Here’s the repository; deep dives coming soon.

See thread for details.

1/9

https://github.com/markmoxon/the-sentinel-source-code-bbc-micro

#retrocomputing #retrogaming #bbcmicro #c64 #8bit

GitHub

GitHub - markmoxon/the-sentinel-source-code-bbc-micro: Fully documented and annotated source code for The Sentinel on the BBC Micro

Fully documented and annotated source code for The Sentinel on the BBC Micro - markmoxon/the-sentinel-source-code-bbc-micro

Terence Eden boosted

Martin Hamilton

@m@martinh.net · 5 months ago

Now, let's see what the #BBCMicro #DomesdayProject has to say about #Bodgeham. Wow, there's even an entry for the Village Fête! I love these submissions written by the local school kids... #EMFCamp #Tetrapod #Awoo #Beep

Screenshot of an entry from the Domesday Project, shown in the browser based emulator. The text reads:

"Bodgeham-on-Wye is a village in the civil parish of Hackerly in Herefordshire, England, near the border with Wales, next to the Eastnor Deer Park. My dad says Bodgeham is best known for its biannual village fete, started in the ancient times before Jan 1st 70. I think that's a "Dad Joke"? My friend Maia went and they loved it. Maia came back with a little plush shark that the shark people showed them how to make, and got to hang out with something called a "furry". Maia says "Awoo!" to the furries, even the ones with the spicy rocks, and "Beep!" to the otherkin. I don't know what that means. Also Mr Wareing said the tetXXpod ritual is incredible, but I think he might have eaten too many crumpets. I'm very tired now, bye."

The XX letters above indicate the position of the cursor in the screenshot, which unfortunately covers up the word from the Domesday Project database. All we know is that it starts with "tet" and ends with "pod". Hmm, very mysterious. Also the toolbar badger appears to have gone missing. Has anyone seen them? — Screenshot of an entry from the Domesday Project, shown in the browser based emulator. The text reads: "Bodgeham-on-Wye is a village in the civil parish of Hackerly in Herefordshire, England, near the border with Wales, next to the Eastnor Deer Park. My dad says Bodgeham is best known for its biannual village fete, started in the ancient times before Jan 1st 70. I think that's a "Dad Joke"? My friend Maia went and they loved it. Maia came back with a little plush shark that the shark people showed them how to make, and got to hang out with something called a "furry". Maia says "Awoo!" to the furries, even the ones with the spicy rocks, and "Beep!" to the otherkin. I don't know what that means. Also Mr Wareing said the tetXXpod ritual is incredible, but I think he might have eaten too many crumpets. I'm very tired now, bye." The XX letters above indicate the position of the cursor in the screenshot, which unfortunately covers up the word from the Domesday Project database. All we know is that it starts with "tet" and ends with "pod". Hmm, very mysterious. Also the toolbar badger appears to have gone missing. Has anyone seen them?

Terence Eden

@Edent@mastodon.social · 3 months ago

"Stylish beige"

ƧƿѦςɛ♏ѦਹѤʞ

@spacemagick@mastodon.social replied · 3 months ago

@Edent
BBC Beige is a timeless fashion icon.
#colour #BBCMicro

Matthijs De Smedt boosted

electron.greg

@electron_greg@oldbytes.space · 3 years ago

Completely mathematically derived Death Star on the #BBCMicro / #AcornElectron

Death Star image plotted using several mathematical routines. Sphere routine modified with randomised termination of arcs to reproduce the "unfinished" nature of the Death Star in the Star Wars film.

fedicat and 1 other boosted

𝚛𝚊𝚝

@rat@social.sdf.org · 3 months ago

@screwlisp you'll have seen @bbcmicrobot
«
👾 Runs your toots on an #8bit computer emulator. Amazing what people create in 512 bytes of code!

🟢 Post with #bbcmicrobot to get a reply. Please include a title in the CW

🖼 See gallery at https://www.bbcmicrobot.com

Also building a #WebXR beeb at https://virtual.bbcmic.ro

This account is all about #bbcmicro #basic #1980s #creativeCoding #retrocomputing #arm

Created by @DominicPajak
»

𝚛𝚊𝚝

@rat@social.sdf.org · 3 months ago

@screwlisp you'll have seen @bbcmicrobot
«
👾 Runs your toots on an #8bit computer emulator. Amazing what people create in 512 bytes of code!

🟢 Post with #bbcmicrobot to get a reply. Please include a title in the CW

🖼 See gallery at https://www.bbcmicrobot.com

Also building a #WebXR beeb at https://virtual.bbcmic.ro

This account is all about #bbcmicro #basic #1980s #creativeCoding #retrocomputing #arm

Created by @DominicPajak
»

Martin Hamilton

@m@martinh.net · 5 months ago

Martin Hamilton

@m@martinh.net · 5 months ago

Wait, what's this #BBCMicro #DomesdayProject page about a #BodgehamBadger? Now the crumpet proliferation is starting to make some kind of sense... #EMFCamp #CrumpetCamp

Screenshot of a Domesday Project entry for something called the Bodgeham Badger. The text reads...

"A mysterious cryptid also known as the "King of Badgers", the so-called Bodgeham Badger has been reported many times, but never photographed or even identified with certainty. It is said to be about the size and proportions of the average human but with the head of a badger. Sometimes only glowing red eyes with a deep garbled growl. The Bodgeham Badger is both feared and revered by the people of Bodgeham- on-Wye, who have taken to leaving offerings of small griddle bread in an effort to propitiate the elusive crypto-zoological entity. "

Oddly the toolbar badger is nowhere to be seen... — Screenshot of a Domesday Project entry for something called the Bodgeham Badger. The text reads... "A mysterious cryptid also known as the "King of Badgers", the so-called Bodgeham Badger has been reported many times, but never photographed or even identified with certainty. It is said to be about the size and proportions of the average human but with the head of a badger. Sometimes only glowing red eyes with a deep garbled growl. The Bodgeham Badger is both feared and revered by the people of Bodgeham- on-Wye, who have taken to leaving offerings of small griddle bread in an effort to propitiate the elusive crypto-zoological entity. " Oddly the toolbar badger is nowhere to be seen...

Martin Hamilton

@m@martinh.net · 5 months ago

#Bodgeham, yep that's the one. Bodgeham-on-Wye, in the parish of Hackerly. Good old #BBCMicro #DomesdayProject. I knew it would be in there somewhere... #EMFCamp

Screenshot of the Domesday Project emulator showing entries for Bodgeham-on-Wye and something called The Bodgeham Badger. I wonder what that could be? Coincidentally, the toolbar badger seems to have perked up a bit...

Martin Hamilton

@m@martinh.net · 5 months ago

Now, what's that place called again? Ah yes, #Bodgeham. Hereford and Worcestershire, as it used to be known. That's the one... #EMFCamp #BBCMicro #DomesdayProject

Screenshot of Domesday Project emulator search showing results for places whose names start with "Bodg". Most of them are Welsh, like Bodgedwydd. However, result number 7 looks promising. It says "Bodgeham, H. & W". Perhaps that's the one? The badge in the toolbar looks on, impassively...

Martin Hamilton

@m@martinh.net · 5 months ago

How does this #BBCMicro #DomesdayProject system work again? Ah, I see... #EMFCamp

Another screenshot of the Domesday Project system, this time showing the search screen. There are various options such as search by grid reference, text and photos by topic. One box lets you search the map by place name. The word "Bodgeham" has been entered here. In the status area at the bottom of the screen the words "Perfect matches found" can be seen. The badger in the toolbar is now somewhat more prominent.

Martin Hamilton

@m@martinh.net · 5 months ago

Hello there, locally hosted copy of the #BBCMicro #DomesdayProject system. I wonder what mysterious delights are to be found when spelunking through your database? #EMFCamp

Screenshot of a web browser tab pointing at localhost port 8888, with the URL path /community_south.html clearly visible. The browser displays a map of Herefordshire, with the area around Ledbury highlighted using a yellow rectangle. Under this are some navigation options labelled Help, Options, Out, Text and Find. But what is there to find? We shall see... Also, there is a badger peeking inquisitively in the top right of the image.

Martin Hamilton

@m@martinh.net · 5 months ago

What's that, little buddy? You would like some CYBER. Sure, no probs...

(SOUND: ON)

#BBCMicro #Cyber #RetroComputing #WHY2025

alcinnz boosted

Mark Moxon

@markmoxon@universeodon.com · 6 months ago

My new version of #Acorn #Electron #Elite is feature-complete! Now for some testing.

Here's the feature list. It’s big! Big enough that this is effectively a Compendium version of Electron Elite; to sit proudly alongside the #BBCMicro Compendia. 🫡

Not long now!

#retrogaming #retrocomputing #8bit

Feature list for the Compendium version of Acorn Electron Elite

Mark Moxon

@markmoxon@universeodon.com · 6 months ago

My new version of #Acorn #Electron #Elite is feature-complete! Now for some testing.

Here's the feature list. It’s big! Big enough that this is effectively a Compendium version of Electron Elite; to sit proudly alongside the #BBCMicro Compendia. 🫡

Not long now!

#retrogaming #retrocomputing #8bit