iesposta
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Posts posted by iesposta
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Way to go! (My top three favorites were in the top four!)
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The Supercharger only has 6K.
I don't think any 7800 games are that small. Ms. PAC Man is 16K.
Unless 7800 code less than 6K is written, and a way is figured to throw the 7800 into 7800 mode, or a way is found to add more RAM to the Supercharger...
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Today I did a much better conversion of X'Mission. ...
Enjoy!
Omega
Thanks a lot for this! I just played this for the first time last week.
One of the strangest playfields / game concepts I've seen.
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iesposta - You should talk to Pac Man Red and see if he can lend his sprite-creation talents to this.
-B
He DID make that Kong... I found it in an old thread.
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These were done in bB?
Yes. bB 1.1d DPC+ Kernel
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I can so use this routine for my DK 2600. Thanks for making and sharing it!
My tests work!
The only thing I can add is for a complete, highest res playfield, it has to be broken into three data sets.
And you don't need "include div_mult..." unless it makes better binaries? Move the NTSC to the top so DASM calculates bytes free.
current_row can only go up to 64 (0 to 63), I guess it has to do with 256 bytes of data at a time.
A max res playfield in bB 1.1d is 0 thru 176.
The first line is a double, not single (see example .bas [bB oddity]), and the last line is not displayed (used when vertical scrolling).
So it is chunk_start=0 current_row 0 to 63, then chunk start = 64 current_row 0 to 63, then chunk_start = 128 for current_row 0 to 48 end rows.
Also, how can I change ....xxx..x.x.x.x.x...... Into %00001110,%01010101,%00000000,%00000000
I did it by hand line by line...
You said find and replace, but I don't get it. What are you finding? It is different every 8 digits!?
I can find the . and repace it with 0, and find the x and replace it with 1, but then what?
You have to add a % at the beginning and then "move over 8 and add a ,% three times" - repeat 176 more times.
Here are my test files:
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Are those real screenshots, or some artistic mock-ups? The pie factory and elevator screens are impressive. I don't care if this takes some new 64k super cartridge, it must be released.
Thanks for the great work.
They are real Stella screenshots running code. Download a .bin file and run it in Stella on a computer or a Harmony cart in a real 2600. All .bin files are in my Blog post (except "how high can you try?).
Just mostly artwork, very little game logic, but Jumpman runs and barrels roll and elevators rise.
I can get two game levels (3 playfield screens) in the DPC+ graphics data bank.
Melody boards can be made with bigger memory chips that could hold all 6 screen data for the 4 levels, but I don't know if batari Basic or visual batari Basic can be adapted to use bigger memory. I will also look into using another bank to hold playfield data, but using it in Basic doesn't look simple at the moment.
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Lots of pictures in my Gallery, and pictures and binaries in my Blog!
I think this elevator level came out great:
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This looks really good!
One suggestion on the playfield... what I did with Lady Bug was mix two colors to produce the maze color (mixing pink and green) which left the doors green. By doing this only the doors flickered at 30hz and the maze was displayed constantly with the mix of pink and green...
Good luck!
Thanks for the suggestions.
[Endorsement] I loved the 2600 version of Lady Bug so much I bought the cartridge! [End endorsement]
( I really did buy it, anyone reading this that is thinking of getting it, buy it in the AtariAge Store. it is in the "I can't believe it is this good" category.)
I may add an option like Lady Bug's option that flickers less? Personally, I think pink girders are as bad as the color chosen on Coleco's 2600 Donkey Kong.
Half of the my game won't flicker the PF as the blue rivet level and the orange pie level are horizontal.
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Add me for one, please.
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Thank you. Here's my 2nd and last try...
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I went for minimalism.
Game label is graphics from the game itself.
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When you get it working, don't forget to go into service mode and then hit the fire to cycle through the sprites, and you can see the grasshopper! The grasshopper didn't make it into the game.
I remember reading about it, and then seeing it for myself in the 1980's. How geek is that?
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Are you sure about that? At least the girders and ladders each have their own lines (very smart design there).
Every level has at least one white / red line color change mid-line.
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Agreed. And both both options (flicker, alternating colors) provide those different colors.
I would love to do the first screen like Omegamatrix does, but his playfield is doing mid-line color changes.
If I could program assembly, that's what I would do. With batari Basic I can't do mid-line color changes.
Also the extra detail on the Princess and the white "OIL" on the barrel is the ball which changes position, width and colors as it goes down the screen. I don't think that is possible with the current batari Basic.
The top text Donkey Kong and Help also use "score" routine with player0 and player1 changing data as the screen is drawn from left to right.
Again, in batari Basic that routine is at the bottom of the screen, and apart from changing the 10 number shapes, then there wouldn't be a score at the bottom.
If I use "noscore" that area is left blank, I don't think you can use it for play-field for sprite display or anything without a custom kernel part.
Addressing modern TV's deinterlacing causing scanline bars, my projecter does this, but only on certain flicker rates. Certain flicker rates cause sprites to display every other line. Pac-Man 4K has no problem. The delinterlacing even smooths out the sharp edges of Pac-Man and looks really good.
Keep suggestions coming! I'm still having fun with this project.
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Why with the flickering? Can't the DPC+ kernel make nice playfield rows squished together enough to look like thin girder beam pixels?
It is my design decision to flicker 2 playfields. One for red girders, and one for blue ladders.
I could make it a static playfield, but then I could only change color every other line.
The Pie / Cement Factory and the blue girder levels may be done with one playfield.
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More artwork in my Blog:
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Wow! That picture is so good in so many ways. It conveys an adventure with the "help" in the distance and the enemies coming toward you as well as the bricks in perspective hinting at scrolling. The prominent castle shown is what you see when you start the game. Then on the back you see an actual game screen instructions and controller options...
My only suggestion would be to say something like it's _fully playable_ with either a standard joystick or a gamepad.
Again, great job and I don't even think a contest would've come up with nicer work than this!
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With a screen name like that, I am guessing you will be here for a long, long time after this sells...
Anyhow, here are my suggestions:
1.) references (we have no idea if you are legit or another scammer on the internets)
2.) pictures (it would be nice to see the condition of the items...or if you have them at all)
3.) location (you could be located in Southeast Asia..this wouldn't be of any interest to me in North America)
4.) an introduction (it is nice - albeit, not required - to have folks say hello before trying to hock their wares here)
...just some suggestions.
Good suggestions, althought I would like to point out that I just noticed your location... shiny!
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Thanks for the encouragement!
I understand that this is a small community and that it will be both loved by some people and hated by other people because of all the flickering.
That is okay. You do things like these for yourself, first, because you want to do them.
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PM sent
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^ What "number six" said. Built-in Minestorm (Asteroids) and Scramble (Scramble) are most recognizable.
I heard that Narzod was fantastic, and recently got one with its overlay, but for casual gaming it's frustrating.
Web Wars is Tempest-like, but I forget how hard it starts.
Is your Vectrex a good "Make in Hong Kong" or a less-good "Made in Taiwan?" Check back under Serial Number. Serial numbers that end with "A" are Taiwan.
Any old system can go bad, but it seems to me the Taiwan ones have deteriorated faster.
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I am personally looking forward to playing this...for instance, I wonder if there are any easter eggs to be found in this game??? It would be neat if, for reasons yet to be discovered, perhaps the words CHARLTON HESTON flash on the screen at some point during the game!!!
Speaking of easter eggs and hidden messages, what do the numbers on the cart mean?
321430
LOST-esque... Scripture?
This is there one and only game! Why 321430?
Conspiracy therorists unite!
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Drawing playfields from data statements
in batari Basic
Posted
In using the DPC+ kernel, drawing a playfield from a data statement would use the current bank to store the data and not waste the "graphics" bank, so you can have more sprites and animation.
Also it is slow and will send the scan line count off, so it is only good to use once before the main loop.
Until I find another way, like an extended graphics bank or an inline assembly routine, it is the only way I can get 4 high res playfields in batari Basic.