Author Topic: Crownland conversion from Atari  (Read 7492 times)

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Offline SuTeKH/Epyteor

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Re: Crownland conversion from Atari
« Reply #25 on: 16:36, 07 May 19 »
I love CROWNLAND! Really looking forward to playing this on my 6128!
Great work so far! ^_^
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Offline gurneyh

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Re: Crownland conversion from Atari
« Reply #26 on: 20:15, 14 May 19 »
Hi,

A small step
forward for this project:


https://youtu.be/p1ynZ4fyrCc

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Online robcfg

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Re: Crownland conversion from Atari
« Reply #27 on: 21:00, 14 May 19 »
Looking good!  :)
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Offline VincentGR

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Re: Crownland conversion from Atari
« Reply #28 on: 21:06, 14 May 19 »
Holy crap !!!  :o
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Offline XeNoMoRPH

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Re: Crownland conversion from Atari
« Reply #29 on: 21:31, 14 May 19 »
Go Ahead !!! , very nice graphics !!!  :o
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Offline Arnaud

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Re: Crownland conversion from Atari
« Reply #30 on: 21:31, 14 May 19 »
Water transparency effect is also really well done.
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Offline Maniac

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Re: Crownland conversion from Atari
« Reply #31 on: 23:32, 14 May 19 »
This looks stunning! Great stuff!
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Offline SkulleateR

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Re: Crownland conversion from Atari
« Reply #32 on: 12:13, 15 May 19 »
Great work so far, animation and scrolling really looking smooth, keep it up  8)
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Offline JayBlood

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Re: Crownland conversion from Atari
« Reply #33 on: 12:26, 15 May 19 »
Well done! :)  :o
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Offline fgbrain

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Re: Crownland conversion from Atari
« Reply #34 on: 19:07, 15 May 19 »
Looks gorgeous!!! Well done !!


I hope you manage to get the game finished.
It takes an enormous amount of time and talent.


Keep up the good work!!
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Offline VincentGR

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Re: Crownland conversion from Atari
« Reply #35 on: 14:43, 26 April 21 »
Any news?  ;D
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Offline Targhan

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Re: Crownland conversion from Atari
« Reply #36 on: 01:16, 27 April 21 »
I think the development is paused for, at least, a long time.
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Offline gurneyh

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Re: Crownland conversion from Atari
« Reply #37 on: 22:35, 27 April 21 »
I think the development is paused for, at least, a long time.

Indeed, the project is on hold.
Crownland is still important to me, so I hope to finish it, even if it was originally just an excuse to start programming on the CPC again.

Coding a scrolling is different from coding a game :)
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Offline banana

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Re: Crownland conversion from Atari
« Reply #38 on: 16:59, 05 May 21 »
Can you share a little about the programming method you used for the scrolling? It looks amazing!
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Offline GUNHED

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Re: Crownland conversion from Atari
« Reply #39 on: 21:09, 05 May 21 »
Hi,
A small step forward for this project:

Great code!!! And this is something I only say very few times ;-)
The GFX on the CPC can of course be better than on the Atari (in some way). But I assume they're well done palace holders.

Awesome to see a scrolling game. I'm tired of that static kind of games. Go on! This will be really great!
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Offline gurneyh

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Re: Crownland conversion from Atari
« Reply #40 on: 21:23, 05 May 21 »
Can you share a little about the programming method you used for the scrolling? It looks amazing!

Of course! :)

For the foreground, it's a hard byte scroll using register 3 of the crtc. Very standard technique.
For the clouds, and other background scenery, it's pre-shifted tiles per pixel. A soft scroll in fact. I just take care to display only in the holes left in the foreground.
For the animated water, these are also pre-shifted tiles.
It seems to me that the technical limit is no more than 7 lines to be redisplayed so as not to fall below 50hz.
The target is 25hz in double buffering, so there is still one frame left for sprite display. They are small, and it was fine.

Great code!!! And this is something I only say very few times ;-) The GFX on the CPC can of course be better than on the Atari (in some way). But I assume they're well done palace holders. Awesome to see a scrolling game. I'm tired of that static kind of games. Go on! This will be really great!


gfx are taken directly from the rom, thanks to the author of the conversion on Atari ST, a version which is also on break. He had kindly provided me with the data from the rom, which he had received from the author of the original game.
A redesign would be necessary.

Indeed, platform games with scrolling are rare nowadays.
We see a lot more games with a static screen.
« Last Edit: 21:28, 05 May 21 by gurneyh »
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Offline banana

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Re: Crownland conversion from Atari
« Reply #41 on: 21:31, 05 May 21 »
So Basically you preloaded the next shift for the scrolling correct? Did you hold the info in memory to achieve that speed or was it read just before it was needed?
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Offline gurneyh

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Re: Crownland conversion from Atari
« Reply #42 on: 21:35, 05 May 21 »
So Basically you preloaded the next shift for the scrolling correct? Did you hold the info in memory to achieve that speed or was it read just before it was needed?


I don't really understand the question, but yes everything is in memory, the demo only runs with 128kb.
One thing is that the preshifted tiles are compiled. That is, we don't read the data to write it, we just write it.
I hope this answers your question. :)
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Offline banana

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Re: Crownland conversion from Atari
« Reply #43 on: 21:40, 05 May 21 »
Ok, got it, thank you!!
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