I never had a TI-99/4a, but I have a fondness for the TMS-9918a. Making TI/Coleco/Sg-1000/MSX graphics is fun and challenging, and every so often I get the bug to make art with the 16 colors 2 colors per line / character limitations. I poke me head in here every so often because I love to see people making games. That's probably the main reason I hang around AA is for the homebrew scene.
For a split second I forgot about the other platforms. Don’t know what happened.
Some of the programming languages mentioned in this thread do not directly support bitmap modes, so the art might have to stick with the 2 colors per character. Looks like you're already there and then spicing up the Wampus with a few support sprites. Cool.
Anyway, for graphics, I use ProMotion. It's kind of expensive for the average user, but I got a copy for free some years back while doing professional game art. When I do tms9918a graphics, I usually just turn on the 8x8 pixel grid, zoom in and try to remember to keep the colors to 2 per character.
I use PaintShopPro, AnimationShop, Flash and Photoshop. ProMotion looks very impressive, and as they say, based on Amiga Deluxe Paint. Nice.
Magellan, Grapefruit, CartographPC and Patterns are pretty limiting to an artist when comparing to the other products mentioned, they can however produce data for different programming languages. Since you’re not going to program (I guess), you can easily stick with ProMotion.
There’s also Tile Extractor. Takes a screen image (like the ones you made) and automatically breaks it into screen data and unique characters. You have to rearrange things for the Graphics 1 mode though (due to the 2 colors per 8 character limitation). Think I have a 9918 Graphics 1 version on my list – if not, I’ll put it on.
Love how you “get around” the character limitation with the treasure chest.
Edited by sometimes99er, Sat Jan 12, 2013 2:25 AM.