The gamble is that anything cartoony compresses better than anything photographic, that PNG is work subsequent to the Sam's heyday, explaining why we're able to be much more bullish about compression rates and that if the map stops fitting we can just break it into multiload. It may not work, but I think it's worth investigating. That the PC map fits into 250k and the Sam map will have half the bit depth, less than 80% of the pixels and the memory target is 50% larger than that is encouraging.
I'm definitely pushing the idea as a way to avoid the look of tiles. I think that look instantly dates a game. On 7/26/10, Stefan Drissen <[email protected]> wrote: > Ummm... whats the point in using a png map if the png is based on tiles?!? I > thought the idea for using png was to allow some really nice authentic > graphics to be used that do not look tiley - which the Dizzy map obviously > does. The png idea could be very good for something NOT tile based (SCUMM > anyone?) > > I think the repeating tiles are what are allowing these maps to compress so > well. > > > Stefan > > -----Original Message----- > From: [email protected] [mailto:[email protected]] On > Behalf Of Frode Tennebø > Sent: maandag 26 juli 2010 08:37 > To: [email protected] > Subject: Re: Porting spectrum games... > > On Sun, 25 Jul 2010 23:54:41 +0200, Thomas Harte > <[email protected]> wrote: > >> PNG wasn't a leg pull, though I've been unable to find the Amiga map >> for Fantasy World Dizzy. However, the entire PC map (256 colour, >> individual screens slightly too large) is 250 kb as a PNG. So it'd be >> possible. > > Would this one do: > http://hol.abime.net/pic_full/gamemap/0501-0600/502_gamemap1.png > > It would take some stiching to make it 100% and fit 256 pixels wide. > >> Animated elements are going to need to be repainted frame by >> frame so are logically separate from the background anyway. > > My thought was that animated elements could be tiles in the same way as > static tiles to save any special handling of those for each screen. > However, I guess it would be rather straight forward to generalise > animations as another layer instead? > > -Frode > -- > ^ Frode Tennebø | email: [email protected] | fr...@irc ^ > | with Standard.Disclaimer; use Standard.Disclaimer; | > > No virus found in this incoming message. > Checked by AVG - www.avg.com > Version: 9.0.851 / Virus Database: 271.1.1/3027 - Release Date: 07/25/10 > 08:36:00 > >
