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Asteroids in Your 89
Posted by Michael on 15 December 2003, 23:26 GMT

[Asteroids]David Coz has updated his smashing game, Asteroids. This grayscale arcade classic features 22 levels, three difficulty levels, and a shop for purchasing ship upgrades. Please don't hack into any hamburger computers afterwards.

If anyone hasn't noticed yet, the poll for the PC program of the year has been posted.

 


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Re: Asteroids in Your 89
jordan krage  Account Info

so whats new now?
shop system?

     16 December 2003, 01:27 GMT


Re: Re: Asteroids in Your 89
Michael O'Brien  Account Info
(Web Page)

Here's a novel idea, read the read-me! Oh!

     16 December 2003, 22:40 GMT

Re: Asteroids in Your 89
RCTParRoThEaD  Account Info
(Web Page)

Wow what a totally amazing excellent game!


NOT! :-p


Why is there purple in the screenshot?

     16 December 2003, 01:40 GMT

Re: Re: Asteroids in Your 89
jordan krage  Account Info

cause your monitor is messed, lol

     16 December 2003, 01:55 GMT

Re: Re: Re: Asteroids in Your 89
Daniel DeGraaf  Account Info

Then so is mine

     16 December 2003, 02:02 GMT


Re: Re: Re: Re: Asteroids in Your 89
AndySoft  Account Info
(Web Page)

Here likewise.

     16 December 2003, 02:15 GMT


Re: Re: Re: Asteroids in Your 89
no_one_2000_  Account Info
(Web Page)

No, the monitor isn't messed!!! Most BMP->GIF converters don't display grayscale colors very accurately, especially the RGB:C0C0C0 (light gray) color. I guess it's the paletting in the GIFs. MSPaint does it very much like that. Most likely, it was converted with MSPaint. It has nothing to do with your monitor.

     16 December 2003, 20:49 GMT


Re: Re: Re: Re: Asteroids in Your 89
Michael O'Brien  Account Info
(Web Page)

Light gray is actually AAAAAA. The levels of gray should be divided up evenly. Most peolpe think that (using brightness scale) white=100, light gray=75, dark gray=25, and black=0. Now if we had a 5th level of gray == 50, then that scale would be correct. Since we don't light and dark should be 33 and 67 respectably.

     16 December 2003, 22:44 GMT

Re: Re: Re: Re: Re: Asteroids in Your 89
Chivo  Account Info

I think the default light gray color used in (for example) dialog box backgrounds in the Windows palette is C0C0C0, at least it used to be in the 16-color palette.

With 4 grays, it would be AAAAAA, and dark gray would be 555555, corresponding to 2/3 and 1/3 of full intensity, respectively.

     17 December 2003, 01:46 GMT


Re: Re: Re: Re: Re: Re: Asteroids in Your 89
Michael O'Brien  Account Info
(Web Page)

Bingo, thanks for being the only other (maybe there are one or two others out there) to actually realize that the grays are wrong. On VTI tey are more or less correct, on the calc it looks like they are the 1/4 and 3/4 instead of 1/3 and 2/3. Can someone veryfy this for me?

     20 December 2003, 01:43 GMT


Re: Re: Re: Re: Re: Re: Re: Asteroids in Your 89
Chivo  Account Info

I'm thinking that VTI probably displays pixel values on its LCD in a linear way. That is, each pixel "fades" to black or white at a constant rate.

On the real hardware, however, the LCD is not at all linear, so pixels fade or change slowly (relatively) at first and then fast.

I've noticed this with a simple grayscale library for the TI-86. On VTI the gray looked non-linear, but on the calc it looked pretty nice and almost linear. The grayscale functions were tweaked for the real calc, I guess.

I think I sort of indirectly verified whatever you wanted someone to verify.

     20 December 2003, 03:17 GMT


Re: Re: Re: Re: Re: Re: Re: Re: Asteroids in Your 89
Michael O'Brien  Account Info
(Web Page)

Well, from what I see on my HW1 89's and HW2 V200's screens the grays are 1/4 and 3/4 instead of 1/3 and 2/3. I'm not trying to criticize but I've always seen higher contrast than what I "should". If what you stated is the reason fine, no prob, but my curiosity has finally been unleashed.

     20 December 2003, 03:29 GMT

Re: Re: Re: Re: Re: Asteroids in Your 89
no_one_2000_  Account Info
(Web Page)

AAAAAA? That would be 170 170 170. The RGB colors usually go in fractions...

Like, 192-192-192 (C0C0C0) is 3/4 of 256, each time around. And this light gray, I believe, is also the default color of your taskbar (windows 98), your scroll bars, and, well, a lot of things, especially in windows.

     17 December 2003, 14:23 GMT


Re: Re: Re: Re: Re: Asteroids in Your 89
no_one_2000_  Account Info
(Web Page)

Oh wait, I see what's you're saying now. Never mind, ignore that above comment. :)

I see... perhaps I should use a better name for that color. HTML uses "silver" I guess that's better terminology since it goes by 5-level gray.

Type this into your URL box. (You need the alert to stay on the page without returning a value)
javascript:document.bgColor = "silver"; alert('this is silver')

     17 December 2003, 14:30 GMT


Re: Re: Asteroids in Your 89
Michael McElroy Account Info
(Web Page)

You saw purple, I saw blue. heh.

     16 December 2003, 02:11 GMT


Re: Re: Re: Asteroids in Your 89
KermMartian Account Info
(Web Page)

It's probably the dithering being used.

     16 December 2003, 15:02 GMT


Re: Re: Re: Re: Asteroids in Your 89
Michael Vincent  Account Info
(Web Page)

I fixed it now with a conversion to grayscale in Paint Shop Pro.

     16 December 2003, 22:07 GMT


Re: Re: Re: Re: Re: Asteroids in Your 89
no_one_2000_  Account Info
(Web Page)

It looks a lot better now. (I'm still surprised that a lot of people hadn't seen that affect in GIFs before)

     17 December 2003, 14:31 GMT


Re: Re: Re: Re: Re: Re: Asteroids in Your 89
Michael O'Brien  Account Info
(Web Page)

There are a lot of screen shots in the archives that have the purple. I think most got used to it and never mentioned it anymore.

     20 December 2003, 01:49 GMT

Re: Asteroids in Your 89
Michael McElroy Account Info
(Web Page)

Is it just me, or does a lot of that screenshot look blue?

     16 December 2003, 02:11 GMT


Re: Re: Asteroids in Your 89
Michael Vincent  Account Info
(Web Page)

I'm not sure. I made a copy of the program's screenshots, which I assume were taken in grayscale. It might be an optical illusion of some sort.

     16 December 2003, 03:01 GMT


Re: Re: Re: Asteroids in Your 89
BlackThunder  Account Info
(Web Page)

It's not an optical illusion. According to Adobe Photoshop 6.0, it's [R: 192, G: 192, B: 255]. A bluish gray. The other not gray part is [R: 160, G: 160, B: 128]. I was right!

     16 December 2003, 03:27 GMT

Re: Re: Re: Re: Asteroids in Your 89
jordan krage  Account Info

what program was used to take the screen shots that would mess them up like that?

     16 December 2003, 12:23 GMT

Re: Re: Re: Re: Re: Asteroids in Your 89
W Hibdon  Account Info

MS paint was probally used to convert it to gif. I have said it once, and I will say it again, MW paint messes with the color when converting formats.

-W-

     16 December 2003, 17:56 GMT


Re: Re: Re: Re: Re: Re: Asteroids in Your 89
no_one_2000_  Account Info
(Web Page)

Wait, where was the other time that you said it?

     16 December 2003, 20:58 GMT


Re: Re: Re: Re: Re: Re: Re: Asteroids in Your 89
W Hibdon  Account Info

Every single time there is a complaint about a screenshot. I tell you people, MS paint was probally used, and it converts really bad. But no one ever listens.

-W-

     16 December 2003, 21:53 GMT


Re: Re: Re: Re: Re: Re: Re: Re: Asteroids in Your 89
no_one_2000_  Account Info
(Web Page)

I know exactly what you mean, I use MSPaint for everything. Changing the GIF to grayscale is the only way I've found around that.

-If you don't listen to me, listen to W-

     17 December 2003, 14:34 GMT


Re: Re: Re: Re: Re: Asteroids in Your 89
W Hibdon  Account Info

MS paint was probally used to convert it to gif. I have said it once, and I will say it again, MS paint messes with the color when converting formats.

-W-

     16 December 2003, 17:56 GMT

Re: Re: Re: Re: Re: Re: Asteroids in Your 89
ti_is_good_++  Account Info

Yep. You said it again. :)

     16 December 2003, 18:14 GMT


Re: Re: Re: Re: Re: Re: Re: Asteroids in Your 89
W Hibdon  Account Info

I did not mean it to comeout that way, but it is slightly humourous.

-W-

     16 December 2003, 19:52 GMT


Re: Re: Re: Re: Re: Re: Asteroids in Your 89
no_one_2000_  Account Info
(Web Page)

Right, exactly what I was saying. Thank you. LOL

A lot of other programs do it too, but MSPaint is probably the worst for getting that purple color in replacement for light gray.

If your GIF is saved like this, here is an easy way to fix it.

Open Microsoft Photo Editor.
Open the GIF.
File > Properties
Type: Grayscale
OK, Save

There you go. :)

     16 December 2003, 20:57 GMT


Re: Re: Re: Re: Re: Re: Re: Asteroids in Your 89
Morgan Davies  Account Info
(Web Page)

what's really sad is the my versoin of MS paint won't even allow to save it as a .gif file.

     16 December 2003, 22:30 GMT

Re: Re: Re: Re: Re: Re: Re: Re: Asteroids in Your 89
jrock7286  Account Info

I believe that even though there isn't a drop down for "GIF image" you can still just type ".gif" at the end of the filename. This works on my comp, let me know if it does on yours...

     17 December 2003, 00:45 GMT

Re: Re: Re: Re: Re: Re: Re: Re: Re: Asteroids in Your 89
Morgan Davies  Account Info
(Web Page)

It saved the file with a .gif extension but upon opening the picture it was just one of those boxes with a red 'x' in it. Oh well, I don't have a problem saving files as .gif.

     17 December 2003, 01:39 GMT


Re: Re: Re: Re: Re: Re: Re: Re: Re: Asteroids in Your 89
no_one_2000_  Account Info
(Web Page)

I've also tried using that method on my old MSPaint version, and it doesn't work. :( Oh look, the newer one is called "Paint" and the older one is "MSPaint." Odd. And if I remember correctly, the Win3.1 version was PBrush.

     17 December 2003, 14:41 GMT


Re: Re: Re: Re: Re: Re: Re: Re: Re: Re: Asteroids in Your 89
Chivo  Account Info

I think the Win98 SE and above versions of Paint support GIFs and JPEGs, but earlier ones don't.

I'm in Win98SE now, and the program file is MSPaint.exe, but the program is titled "Paint". Also, the program PBrush.exe still exists (in \windows), but it looks like it just executes MSPaint.exe (in "\Program Files\Accessories").

In fact, I think all (or most) Win3.1 accessories and applets can still be found in the \windows directory, at least in Win98 (I don't run WinXP anymore to find out).

     18 December 2003, 03:09 GMT


Re: Re: Re: Re: Re: Re: Re: Re: Re: Re: Re: Asteroids in Your 89
no_one_2000_  Account Info
(Web Page)

I think you're right (about the newer paint being in Win98SE and above).

     18 December 2003, 20:51 GMT


Re: Re: Re: Re: Re: Re: Re: Re: Asteroids in Your 89
no_one_2000_  Account Info
(Web Page)

Oh! I know what you mean... my Win95 computer had an old version of MSPaint. It couldn't do all the good stuff that the newer version can (tranparency, save to gif/jpg). The one that came with my Win98 computer DOES work. It's weird. Actually, I have both versions on here. If it runs as a stand-alone file, I could send it to you or something, if you want it. I just don't know how big it is.

     17 December 2003, 14:37 GMT


Re: Re: Re: Re: Asteroids in Your 89
no_one_2000_  Account Info
(Web Page)

See my post above. There are a LOT of screenshots like this. The converted GIF didn't like R:192 G:192 B:192, so the cloest it came up with was R:192 G:192 B:255. Again, MSPaint does this all the time in its conversions. It's alright. Look at the link. Here is another example of this happening. This is very common in screenshots all the time. If you want to avoid this, when you save your GIFs, make sure you save them in Grayscale form. That way you won't get any Purple-ish or yellow-ish (etc) colors.

     16 December 2003, 20:53 GMT


Re: Re: Re: Re: Re: Asteroids in Your 89
Michael O'Brien  Account Info
(Web Page)

It did not like the color because it is not in its color table.

     16 December 2003, 22:45 GMT


Re: Re: Re: Re: Re: Re: Asteroids in Your 89
no_one_2000_  Account Info
(Web Page)

I wonder why it isn't. It's really a common color. Look around windows98, you see it everywhere. It's probably the secondly most common used color, next to white.

     17 December 2003, 14:42 GMT

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