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Java 4K Game Development Contest

Posted by Zonk on from the what-else-do-you-have-to-do dept.

mrseigen writes "Java Unlimited has been running a contest since Dec 1 to develop a game in Java using only four kilobytes of bytecode and resources. You have until March 1 to finish your entries, and it's worth looking at the entries for last years' contest."

43 comments

  1. Uh.... by Anonymous Coward · · Score: 2, Interesting
    Well if you are going to have a 4k email signature, you might as well have it be an attached Java game, not some lame graphic.

    I sense productivity will reach all time highs ...

  2. So who won last year's contest? by Therin · · Score: 2, Informative

    I looked around the site linked, and while they have 50 games archived from last year, there is no mention I can find of who won.

    Anyone know where that is?

    --
    John 17:20
    1. Re:So who won last year's contest? by Bibz · · Score: 1, Informative

      I don't know exactly who won, but you could go with the number of downloads to judge the "best" game.

      This would mean that Dungeon 4K would have won. It has far more DLs than any other game (1600 compared to 900 to the second "best")

      --
      I didn't found something funny to put here.
    2. Re:So who won last year's contest? by AKAImBatman · · Score: 2, Informative

      http://games.datadino.com/4K_2005/scores.html

      Be nice to the poor server, please.

      --
      Javascript + Nintendo DSi = DSiCade
    3. Re:So who won last year's contest? by AKAImBatman · · Score: 1

      P.S. FireFox 1.5 screws up the CSV load. You can read the source spreadsheet if you have problems.

      --
      Javascript + Nintendo DSi = DSiCade
    4. Re:So who won last year's contest? by Woogley · · Score: 3, Insightful

      thanks for pointing this out, I do indeed need to list the winners on the site. I'll have to port that 3rd party spreadsheet from 2005 to the site.

      this year I will make sure the winners list is on the site itself (it would be nice to sort it by final placing after judging anyway) :)

    5. Re:So who won last year's contest? by BinLadenMyHero · · Score: 0, Offtopic

      And if you don't own Microsoft Office, and don't want the bloat of OpenOffice.org just to see the xls data, use xlhtml to the rescue!

    6. Re:So who won last year's contest? by martyb · · Score: 1

      Hi! I'm having fun playing some of these games... but it would be really nice if all 50 of the 2005 4KB games were available for download in a single .ZIP file. If I missed such a thing, please give the URL. Otherwise, could you please add this to the site and let us know what its URL is?
      Thanks!
      - Marty

    7. Re:So who won last year's contest? by Anonymous Coward · · Score: 0

      The download counts arent representative. Fuzetsu for example was started over 7000 times already (within 3 weeks). Yes, it actually made some megabytes of traffic.

      -oNyx

  3. SCREENSHOTS by Eightyford · · Score: 2, Informative

    Everybody loves screenshots...

    --
    Religion for nerds. Stuff that really matters
  4. New Demo Scene? by jasonwea · · Score: 1

    Having moved to the Mac a few years back, I haven't found many demos which run natively on my machine. I feel like I've been missing out. Demos like the product are great.

    Is this a sign the demo scene may just kick off big time for J2SE? I wonder if anyone has thought about J2ME.

    With such a rich API available, we're going to see some great (playable!) demos.

    1. Re:New Demo Scene? by AKAImBatman · · Score: 4, Informative

      Having moved to the Mac a few years back, I haven't found many demos which run natively on my machine.

      Try Robotron 4096. It was developed on a Mac, then tested on Windows. ;-)

      Is this a sign the demo scene may just kick off big time for J2SE?

      This contest is currently running into its fourth year. It garnered quite a bit of attention the first year, but the quality of the entries was pretty low. The second year two competitors really tore up the contest with full graphics, sound support, and full screen applications. The third year gained attention from many professional game developers. taking the contest into 3D, real-time raytracing, and other areas that it had never been before.

      The fourth year is shaping up to be even bigger and badder than ever before. Visit JavaGaming.org for more info.

      --
      Javascript + Nintendo DSi = DSiCade
    2. Re:New Demo Scene? by MilenCent · · Score: 1

      Try Robotron 4096.

      God, I love that name.

    3. Re:New Demo Scene? by AKAImBatman · · Score: 1

      God, I love that name.

      Yes, but what about the game? ;-)

      --
      Javascript + Nintendo DSi = DSiCade
    4. Re:New Demo Scene? by MilenCent · · Score: 1

      I looked at a screenshot of the game. I read a description of the game.

      I think I like the name more than I think I'll like the game.

    5. Re:New Demo Scene? by AKAImBatman · · Score: 1

      I think I like the name more than I think I'll like the game.

      How sad. You might find you're missing a great little game. Not to mention many of the other good ones like T4XI and Hunters4K.

      Well, at least you might get some amusement out of the manual:

      http://java.dnsalias.com/4k/robotron/readme.txt

      It contains an entire story about how Robotron ends up in 4096. :)

      --
      Javascript + Nintendo DSi = DSiCade
    6. Re:New Demo Scene? by MilenCent · · Score: 1

      Ah, but that's why I said "think." It's indeed possible the game's better than I think it'll be. I'll give it a shot sometime.

      One mistake in the manual: the robots themselves were the Robotrons. You're just a human with mutant blasting powers.

  5. Useful... by Anonymous Coward · · Score: 4, Funny

    because on a machine that has to run a JVM, memory is tight.

    1. Re:Useful... by AKAImBatman · · Score: 3, Informative

      It does have real use for Cell Phones and other J2ME devices. The types of tricks used in this contest are precisely the types of things you'd do for J2ME. The only difference is that J2ME further constrains you on total system memory, not just download size.

      --
      Javascript + Nintendo DSi = DSiCade
    2. Re:Useful... by Decaff · · Score: 1

      because on a machine that has to run a JVM, memory is tight.

      On small machines the JVM is just an interpreter, like any other (but don't let facts stop Slashdot anti-Java bias).

      There is an advantage of Java bytecodes is that they tend to be smaller than the equivalent machine code instructions for something like X86. This is one reason why Java is so popular for embedded systems.

  6. Re:About what you would expect by Anonymous Coward · · Score: 0


    Just remember this next time someone claims Java games are the way of the future.

    Just remember the above next time you think someone says something stupid on slashdot.

    Off the top of my head, I can't recall many posts in the slashdot history that were more pathetic than the above is.
    Even for a troll you're a really sad case. At least many of the trolls around here do the trolling with a style - and it's usually fun to read the bashing posts too.

    You just have a seriously bad taste.

    Cheers

  7. quick downloads by acomj · · Score: 1

    at 4k, even if the games aren't good, they'll load quick. I'm off to try!

  8. Re:About what you would expect by jlarocco · · Score: 2, Interesting

    He does have a point. I have a version of tetris for my TI-86 calculator. I have no idea how to tell how much RAM it uses, but the calculator only has something like 120K. One 4K version of tetris on that page uses almost 40 MB of RAM after a few minutes, and after playing for a while there's occasional, noticeable pauses for garbage collection (yes, I verified it was from garbage collection), which doesn't happen on the calculator.

    Java's great for some tasks, it's almost like a cross-platform VB. But the language, or more likely the way the language is most commonly used, isn't optimal for some things. Games happen to be one of those things.

    --
    Maybe not
  9. Re:About what you would expect by LWATCDR · · Score: 1

    "One 4K version of tetris on that page uses almost 40 MB of RAM after a few minutes, and after playing for a while there's occasional, noticeable pauses for garbage collection (yes, I verified it was from garbage collection), which doesn't happen on the calculator."
    It is possible to write bad code in any language. This sounds like a good example.

    --
    See my blog http://ilovecookes.blogspot.com/ for light hearted technical information.
  10. And... by itistoday · · Score: 1

    everybody hates karma whores! ;-)

    --
    Best. Webhost. Ever. Dreamhost.
  11. No FAQ on .JNIP extension file by Dark+Coder · · Score: 2, Interesting

    For the uninitiated and clueless, there is no HOWTO or FAQ on how to run these Java program from Mozilla/Firefox or its mime action file.

    Just how does one go about getting JNIP file to execute from a 'single-click' standpoint of view?

    When one clicks on the website's 'Run Webstart', an open dialog box indicating that this JNIP file extension is identified as a 'Java Network Launched Application', but offers no executable for this...

    What is the correct executable for this?

    1. Re:No FAQ on .JNIP extension file by Anonymous Coward · · Score: 0

      program files/Java/JRExxx/bin/javaws.exe

      You might wanna try Java.com auto-updater to update Java if it helps. Note that all these games require at least Java 1.4. Personally I've never had problems launching .JNLP-files with IE or Firefox, but Opera just doesn't recognize launch them for some reason.

    2. Re:No FAQ on .JNIP extension file by Jerdie · · Score: 2, Insightful

      Install java web start from java's website.

      --
      Programming is simply the application of logic to creativity
  12. 4k? by PeterAllen · · Score: 2, Informative

    Anyone know what happened to the 5k? used to live at http://the5k.org/

    --
    there is death in the hane
    1. Re:4k? by ajb673 · · Score: 1

      According to the last archived page on archive.org (http://web.archive.org/web/20050401093814/http:// www.the5k.org/)

      "As those of you following the saga at home will know, the 5k has been in flux for a long time on account of the people who organize it are too busy and stressed. But that will not be the case for long: the infinite resource known as SIGGRAPH will soon take it over, to the betterment of all."

      So who knows...

    2. Re:4k? by Bill+Wong · · Score: 1

      Stewart Butterfield, the founder of the5k, went on to develop gameneverending (now defunct) and flickr, and he's now a wage slave to Yahoo!.

      -- yeoz

      p.s.: yo ;o

    3. Re:4k? by PeterAllen · · Score: 1

      aha - i'd forgotten about that

      ta yeoz

      --
      there is death in the hane
  13. Re:About what you would expect by Anonymous Coward · · Score: 0

    Then again, as much as I love Java (I've been involved in the 4k competition for the last two years), there's no way you'd fit anything in 120KB ram.

    But that's what fun about this competition.. Java just isn't the best choice for writing small application. The contrast of trying to write a tiny game in a very high level programming language is what makes it fun!

    - Markus Persson

  14. Re:About what you would expect by Decaff · · Score: 1

    But the language, or more likely the way the language is most commonly used, isn't optimal for some things. Games happen to be one of those things.

    You can't generalise. There is no reason why Java can't be used for games, and work well. Garbage collection should not be a problem for well-written applications (indeed, Java can be used for real-time work). There is the Quake clone, Jake, and there are commercial games, and even game platform emulators:

    http://www.millstone.demon.co.uk/download/javaboy/

  15. Re:About what you would expect by Anonymous Coward · · Score: 0

    I thought the same but was impressed by this:

    http://www.bytonic.de/html/jake2.html

    "Jake 2" : Quake 2 engine ported entirely to Java. Runs really well.

  16. Re:About what you would expect by AKAImBatman · · Score: 3, Informative

    One 4K version of tetris on that page uses almost 40 MB of RAM after a few minutes

    Did you consider that the memory you're seeing may be JVM overhead combined with pre-allocation? In smaller devices (like Cell Phones), the JVM is built into the device. So there's no real overhead for Java. The pre-allocation is also smaller to compensate for the smaller device. Considering that many of these devices have barely 64K available (never mind 120K), I'd say that Java fits just fine.

    and after playing for a while there's occasional, noticeable pauses for garbage collection (yes, I verified it was from garbage collection)

    I find it interesting that you singled out such an example without looking at many of the more interesting examples like T4XI, Robotron 4096, and Hunters 4K. Also, you may find Tetris 4K to be a much better version than the first item on the list.

    Java's great for some tasks, it's almost like a cross-platform VB. But the language, or more likely the way the language is most commonly used, isn't optimal for some things. Games happen to be one of those things.

    You don't know what you're talking about.

    At one point I could have pointed to the poor performance and massive memory usage of VegaStrike. Does that mean that C/C++ is a "bad" langauge? NO! It means that it was poorly coded and still needed lots of work done. The developers worked on improving their codebase, and low-and-behold, the game got better. Perhaps it wasn't the language after all?

    --
    Javascript + Nintendo DSi = DSiCade
  17. Re:About what you would expect by Anonymous Coward · · Score: 1, Insightful

    Then again, as much as I love Java (I've been involved in the 4k competition for the last two years), there's no way you'd fit anything in 120KB ram.

    Markus, you're very good at desktop gaming and 3D technology. But J2ME often runs in 64K or less. So you're not helping anybody with sweeping statements like this. Let's make sure we're comparing apples to apples (desktop games to desktop gamss) and not apples to cucumbers (desktop games to calculator/cell phone/PDA games). Shall we? :-)

    -jbanes

  18. Re:About what you would expect by Anonymous Coward · · Score: 0

    Right you are! I forgot about the KVM.

  19. Re:About what you would expect by petermgreen · · Score: 1

    when i tried jake on here it was unplayablly slow now i haven't tried the original C version on here but ut which is of similar vintage is fine.

    people can come up with benchmarks both for and against java much as people can come up with TCO studies both for and against linux. but my experiance is that java stuff is either slow, memory hogging or both.

    --
    note: i'm known as plugwash most places but i screwd up registering that here somehow in the past and now can't register
  20. Re:About what you would expect by Decaff · · Score: 1

    when i tried jake on here it was unplayablly slow now i haven't tried the original C version on here but ut which is of similar vintage is fine.

    Others have commented that it is fine.

    but my experiance is that java stuff is either slow, memory hogging or both.

    The same can be said about badly written C or C++ programs. The point is that there is nothing now about the Java language itself, or the most common implementations of it, that means that applications are necessarily large or slow.

  21. This year's list by Anonymous Coward · · Score: 0

    http://javaunlimited.net/games/java4k_2006.php

  22. Re:About what you would expect by Anonymous Coward · · Score: 0

    Java is actually pretty good for games.

    a couple of issues tend to plauge it though. One is the original issues with early applets that gave java a reputation of being slow and clunky. Not really an issue any more with the newer VMs like 1.5, They even ported over Quake and there are a couple of full 3-d engines that run in it. Second is the loading of a sepperate VM for each java app/applet that is launched, unnoticeable on large projects but when dealing with small applets its a killer and really I don't know why Sun hasn't made it possible to multitask the VM.

    What your describing is an example of either bad programming or very bad way that calculator implements it, you get the exact same thing in C/C++/C# as well if you write it badly. Sounds like the program is creating tons of objects and just dumping them constantly (a While loop maybe creating classes and never using them and leaving all the junk behind)

    Java is definantly the way to go on things like phones with the Java ME and the VM built it for a very very small footprint.