nanochess

Hi all. I'm doing the Colecovision version of Lunar Leeper, a game announced by Sierra Online and only published for C64, Atari 8-bit and Apple II. So far I've solved all the technical hurdles of it, mainly the scrolling engine and fitting all the required graphics for it. Also I've drawn all the required graphics. Apr/01/2019 lunar valley visuals working. Apr/03/2019 tunnel visuals working. Apr/14/2019 game completed now in testing. *Start of original joke of Apr/01/2019* Last night I was testing games with my CoolCV emulator in search of things that aren't emulated properly, I had a set of backup CD with ROMs from old times (probably made in 2005). One of these CD turned up to be interesting because it was a FTP directory that I downloaded in year 2000, it was simply named COLECO. I remember I downloaded many ROM files from FTP but didn't took note of site names. It was a pretty complete recopilation of the Colecovision games, but one game that brought my attention was LUNAR.ROM dated Nov/04/1996, probably dumped by someone. Interestingly I had tested all games before but this one didn't caught my attention because it was incomplete and I forget altogether about it, but this time (and after years of experience collecting Colecovision games) I recognized a prototype game!!! Lunar Leeper by Sierra Online. It's an incomplete game, but nice to see something like this after so many years! Enjoy it! *End of joke* https://youtu.be/qxfEidvDPmo https://www.youtube.com/watch?v=qJfGeHP-BQ0 LUNAR.ROM LUNARCV1.ROM

Crossing my fingers to receive mine soon!

Paid this morning

Glad to see I'm going to get a boxed copy

I've made a video https://www.youtube.com/watch?v=hGTCggJ5ZJs

I've heard only three cartridges remain

Never was a problem for me. Once I understood DIR I was up and running. DIR, see something interesting, enter the name and see it running. Then pound all the keys to discover how to play the game. Next step, COPY to make games disks, REN to rename games. Next step, GWBASIC and be surprised "Holy shit! These games come with a listing!" One step at a time. Now we look like way too smarter. In these days kids doesn't elaborate further than clicking each point of screen.

Good for me So DZ-Jay now gives permission and dates for starting threads You're not alone. I have the same feeling. I question your motivations. You entered this thread again after the poll finished only to start drama and division. Stop this!

Just read the disassembly, it would be a bug in the indirect NEG @FAC instruction. But that would be if the interpretation is wrong. But what if the PRINT is wrong and "eats" the minus? A way to test this would be to negate a variable in BASIC in two ways (A = 5 A = -A and A = 2 A = A - 5) and PRINT the result.

Nice review!

I agree is pretty addictive. Steamroller and Moonsweeper are tied for the 4th place. But again, 2018 looks like the most impressive year with an all-times record of good games!!!

Wow! first time I've heard of it.

I made this image with the latest poll.

When I answered No I had to recognize that sometimes I'm not so smart

I think the right wording is "Gyruss (unauthorized hack of earlier Deep Zone game released at Atariage)"

Shhh! don't talk, I'm busy making 50 accounts to make IntyBASIC Showcase Vol.2 to win

A MSX game using 8-way scrolling. https://www.youtube.com/watch?v=k73p_KP0em4 A Colecovision one. (works in unexpanded Colecovision) https://www.youtube.com/watch?v=HH-OnfUuD60 The graphics that can be shown are very limited because the trick of precomputed tiles, this means you only update the pattern table (768 bytes in two frames). I'm not aware of examples of Z80 code about scrolling in 8-way. Basically it's composed of this: 1. You create your map using the most limited possible set of graphics. 2. You create a program that takes each tile and generates the intermediate versions for scrolling: tile and adjacent tiles (1 for horizontal/vertical scrolling, 3 for diagonal scrolling). One tile can expand to many tiles!!! so typically scroll is in 2-pixels step. 2.1. At same time you generate a map of tiles for each scrolling offset. (for 2 pixels scroll, it would be 4 tables, for 2 pixel diagonal scroll, it would be 16 tables) 3. If the total tiles didn't exceeded the maximum 256 tiles then you can continue. 4. Load the bitmaps into the VDP (repeat 3 times in mode 2, or only 1 in mode 1) 5. For each display frame, you extract the X,Y offset to select a table, and then take each tile from your map, translate with table, and put into VRAM screen.

No one in Atariage uses graders, even eBay sellers ceased to use it when trying to sell common games for very high prices just because it was VGA graded. Sealed games typically go double price over a normal CIB game. Also given the wide availability of Qbert Qubes for Atari 2600 (just check eBay), I think it's more R7 than R9. For example, this is overpriced because damage in box: https://www.ebay.com/itm/Qberts-Qubes-Atari-2600-1984/163444362637?epid=56235318&hash=item260e0b0d8d:g:qqsAAOSwp7taeGYK&frcectupt=true But it would be an almost acceptable price if the box is pristine. Now your sealed game would go for more or less double that price, so $855 was pretty fair. Good luck trying to sell it for $1000.

Thanks! I think you need to install the following: http://libsdl.org/download-1.2.php Download the library and put it into /Library/Frameworks (same as libSDL2, just reminded jzintv doesn't use libsdl2 but libsdl) (BTW, just noticed I didn't put that step in the book... too late)

Hey NIAD, we are so smart!!! now we know isn't Lunar Leeper

I think you are right, J-F avoided my question

A screenshot of your command line of Intybasic execution, the as1600 command and jzintv command line before pressing Enter would help me a lot.

If it isn't, I could be crazy enough to write it!!! J-F is putting to much bait and not conceding any clue!!! I'm becoming crazy!!! https://www.youtube.com/watch?v=D7g0862r2qU