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Conference hydra::amiga_v1

Title:AMIGA NOTES
Notice:Join us in the *NEW* conference - HYDRA::AMIGA_V2
Moderator:HYDRA::MOORE
Created:Sat Apr 26 1986
Last Modified:Wed Feb 05 1992
Last Successful Update:Fri Jun 06 1997
Number of topics:5378
Total number of notes:38326

1819.0. "Help with Graphic Objects needed" by SMAUG::SPODARYK (20, 20, 20-4 hours to go...) Wed Oct 26 1988 16:37

    A few questions:
    
 1) I am looking for information on creating and manipulating BOBs.
    I have the ROM Kernal manual, so I have some information on how
    to do this, but was wondering if there is a worthwhile graphics
    book out there.
    
 2) Is there any type of utility out to "edit" and maybe produce 
    C code for these Graphic Objects?  It would seem a necessity for 
    anyone writing a game.

 3) Another thing that would be of great help, is if anyone has any 
    examples they have worked on and would be willing to share.
    PD game code possibly?  C, Assembler, etc.                 
    
    What I have in mind is animating several objects, for use in a game.
    I'd hate to "reinvent the wheel", so any help would be appreciated.  

    Thanks - Steve
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1819.1ILBMdumpAITG::WISNERPaul Wisner :optimize '((speed 3) (safety 0))Sat Nov 05 1988 16:1013
    I use a PD program called ILBMDump.  This program converts IFF brushes
    (such as DPAINT brushes) to C source code.  I then compile them to
    object modules and link them into my game.  NOTE that image data for
    bobs and sprites is stored in different formats.  ILBMdump produces
    the blitter object format.
    
    BTW:  In my game, I didn't use BOBs.  I used the BltMaskBitMapRastPort
    routine and stored objects in my own structures.  I think doing it
    myself was easier than trying to comprehend the sloppy, buggy Gels
    documentation (which also fails to discuss what kind of overhead is
    involved).
    
    There is another PD program called Brush2C, haven't tried it.