| From: | Sami N��t�nen |
| Date: | 6 Sep 99 at 18:56:07 |
| Subject: | Re: BLITZ mode? |
On 06-Sep-99, Sandy Brownlee wrote.
> Hello,
>
> As I set about trying to actually write my new Railroad Tycoon type game,
> I am left to wonder if I should use blitzmode or not. I know, I know, for
> games, there is no need for multitasking etc., and the speed increase is
> useful, but there is future compatibility to think of- the more I use OS
> screens instead of slices etc, the more likely the game will work on
> future OSs, and even MCC. What is everyone's opinion on the usage of
> BLITZ? Is it still wise to use it, or would I be better to use amigamode
> all the time? The last attempt at a game I did used an OS window, but it
> was well slow.
Well you can make the game as OS friendly and you really wont suffer a lot.
There are some major issues though:
1. do not allow native AGA displays be bigger than 640*256 (+overscan)
(It will eat up all CPU cycles while the display drawing is on the way)
2. Use small window only for input. Output any gfx etc directly to
bitmap of the display (in CGFX you have to make window if I remember
correctly, but it will not slow your game down)
3. Make the game work first then try to make it run faster.
4. If you are using lot of GFX use chunky with mildred. You will have much
better performance rate even on 030/50 than using normal planar GFX.
5. Well nothing more than design -> test -> modify -> test -> modi...
and happy coding. :)
Sami N��t�nen
EMail: sami.naatanen@dlc.fi
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