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Introducing Rockbot - a Megaman clone

 
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protomank



Joined: 18 Dec 2008
Posts: 64
Location: Porto Alegre, RS, Brazil
PostPosted: Sun Nov 08, 2009 11:43 am    Post subject: Introducing Rockbot - a Megaman clone Reply with quote
http://www.upperland.net/rockbot/

News in the page are still in Portuguese, I did not had the time for translations - feel free to use google translator - but you can have a little idea of how the project is.



Game is made in SDL, and with some adjustments is portable to PS2. It is still in early development and I plan to put the code on sourceforge as soon as I finish the process of creating self-made graphics, because I can't use ones that are copyright from Capcom :)
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protomank



Joined: 18 Dec 2008
Posts: 64
Location: Porto Alegre, RS, Brazil
PostPosted: Tue Dec 01, 2009 10:17 am    Post subject: Reply with quote
The code and a Windows build are on sourceforge page already.

I'll post a PS2 build once I find out how to load files independently from the place (CD, DVD, HD, MC or MASS) you run the elf.
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cosmito



Joined: 04 Mar 2007
Posts: 314
Location: Portugal
PostPosted: Mon Dec 07, 2009 1:43 am    Post subject: Reply with quote
Quote:
I'll post a PS2 build once I find out how to load files independently from the place (CD, DVD, HD, MC or MASS) you run the elf.

You can parse the argv[0] path/filename string to figure out from which device your program was started. For the HDD case, the things are trickier, since it's reported as from 'host:'...

There are almost infinite ways of doing this, but if you want to spare some dev time, you can use my solution I implemented for ps2doom (and if you spot some bug, warn me please :) ) :
Code:
void GetElfFilename(const char *argv0, char* deviceName, char* fullPath, char* elfFilename)
{
    int i;

    int lenght = strlen(argv0);
    int doispontosIndex = 0;
    int slashIndex = 0;
    int isFileOnRoot = 0;

   
    // locate '/' from the end of path
    for(i=lenght-1; i>=0; i--)
    {
        if (argv0[i] == '/')
        {
            slashIndex = i;
            break;
        }
    }
    if (slashIndex == 0)
        isFileOnRoot = 1;       // elf is located on root of device

    // locate ':' from the start of path
    for(i=0; i<lenght; i++)
    {
        if (argv0[i] == ':')
        {
            doispontosIndex = i;
            break;
        }
    }

    // set deviceName to device name (ex: 'mass:', 'host:', 'mc0', etc)
    strncpy(deviceName, argv0, doispontosIndex+1);
    deviceName[doispontosIndex+1] = 0;

    // set fullPath to full path (ex: 'mass:directory/', 'mass:directory1/directory2/', etc (no limit over depth))
    if (isFileOnRoot)
        strcpy(fullPath, deviceName);   // fullPath = deviceName actually
    else
    {
        strncpy(fullPath, argv0, slashIndex+1);   
        fullPath[slashIndex+1] = 0;
    }

    // set elfFilename
    if (isFileOnRoot)
        memcpy(elfFilename, argv0 + doispontosIndex + 1, lenght - doispontosIndex);
    else
        memcpy(elfFilename, argv0 + slashIndex + 1, lenght - slashIndex);
}


Hope this helps. This should work for every device except HDD.
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protomank



Joined: 18 Dec 2008
Posts: 64
Location: Porto Alegre, RS, Brazil
PostPosted: Tue Dec 15, 2009 4:10 am    Post subject: Reply with quote
Yep, helps a lot. I'm about to implement this unity detection, but first I have a major blocker to solve: the TV image flickering a LOT when running SDL/PS2 apps :-(
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protomank



Joined: 18 Dec 2008
Posts: 64
Location: Porto Alegre, RS, Brazil
PostPosted: Wed Feb 03, 2010 9:00 pm    Post subject: Reply with quote
Well, beta3 was just released, including builds for PS2 USB and CDROM besides Windows and Linux builds. See information and download it in: http://rockbot.upperland.net

On the PS2 front, the things that need work or are missing:
- find a way to build a decent timer on PS2 that counts milisseconds to fix SDL_Timer
- HDD support
- fix SDL_Mixer
- add a way for SDL to disable bilinear filter in gsKit

Any help is appreciated in those fronts :)
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protomank



Joined: 18 Dec 2008
Posts: 64
Location: Porto Alegre, RS, Brazil
PostPosted: Thu Feb 04, 2010 9:58 pm    Post subject: Reply with quote
Some screenshots of it running on Linux:





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Ameen



Joined: 14 Jun 2009
Posts: 12
Location: Bahrain
PostPosted: Fri Feb 05, 2010 6:52 am    Post subject: Reply with quote
Hi,

I just found a bug in your game! Just to let you know I downloaded the Win32 version of the game and when first level came, all I did is move the player to the left of the screen and it was like his was falling from there.

By the way, you did a nice job!
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protomank



Joined: 18 Dec 2008
Posts: 64
Location: Porto Alegre, RS, Brazil
PostPosted: Fri Feb 05, 2010 7:26 am    Post subject: Reply with quote
Yes, known bug.
Sadly I did rushed beta3 because I was tired of waiting for people being able to test it, and let it out with 4 or 5 bugs I knew about - shame on me :)

Thanks anyway, the first thing I need to work on beta4 is the collision verification, because of this bug, and one more that allows player to walk in the middle air, because he gets locked into a platform. I did the beta3 in less than a month, beta4 is planned to take 2 or 3 months, and this includes my vacation period, so it should be pretty solid :)
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protomank



Joined: 18 Dec 2008
Posts: 64
Location: Porto Alegre, RS, Brazil
PostPosted: Tue Apr 06, 2010 4:53 am    Post subject: Reply with quote
Released beta4 version. Keep in mind that, as a beta, there are some bugs, such as jumping sometimes not working, sound lagging the game and second player joystick not working.





Get it at:
http://rockbot.upperland.net/
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protomank



Joined: 18 Dec 2008
Posts: 64
Location: Porto Alegre, RS, Brazil
PostPosted: Tue Jul 20, 2010 5:14 am    Post subject: Reply with quote
Updated to beta 6 yesterday. Now it runs better (faster/less buggy) and with sound and music on the Playstation 2.

Any problems, please contact-me.
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