Retro Lord Posted July 11, 2015 Share Posted July 11, 2015 Is it possible to have the healthbars in 2 colors? I'm sure I've seen a game before that had a lifebar/timebar that was one color and as it decreased the amount decreased turned red. Quote Link to comment Share on other sites More sharing options...
Jinroh Posted July 12, 2015 Share Posted July 12, 2015 Dunno what you're using to draw, but if it's with PF graphics you can set the PF to score mode. To make the left/right two different colours. Quote Link to comment Share on other sites More sharing options...
Kiwi Posted July 12, 2015 Share Posted July 12, 2015 Activision games. I think they write the color information to the coluBK as it about to draw the bar. When the bar's finish drawing, then load the old color information back. They use the ball for smoother diminishing meter. Then repeat the process to make the bar taller, then starts preparing to draw whatever below that bar. Something that can be done in asm. Quote Link to comment Share on other sites More sharing options...
Retro Lord Posted July 12, 2015 Author Share Posted July 12, 2015 Ah cool, thanks for the help =) Quote Link to comment Share on other sites More sharing options...
+SpiceWare Posted July 12, 2015 Share Posted July 12, 2015 I don't know if you can do this with bB, but what I would do is: set COLUP0 to the 1st color of the healthbar (say green) set NUSIZ0 to $08, makes player0 quad size set GRP0 to $FF set CTRLPF to $05, reflected and playfield has priority (so the player hides behind it) draw the playfield by setting PF0 = $FF, PF1 = $FF, PF2 = $0F, you'll have a 32 pixel "hole" in the middle of the screen set COLUPF to your game's normal background color set COLUBK to the 2nd color of the healthbar (say red) for full health, position player0 so that it appears entirely in the 32 pixel playfield hole for partial health, position player0 to the left based upon how much health remains Quote Link to comment Share on other sites More sharing options...
+SpiceWare Posted July 12, 2015 Share Posted July 12, 2015 Minor changes to show two 2 color healthbars side-by-side on the same scanlines: set COLUP1 to second healthbar's 1st color NUSIZ1 = $08 GRP1 = $FF PF0 = $FF, PF1 = $00, PF2 = $FF, you'll end up with two 32 pixel holes position player0 in the left hole position player1 in the right hole Quote Link to comment Share on other sites More sharing options...
+Random Terrain Posted July 12, 2015 Share Posted July 12, 2015 Related thread: atariage.com/forums/topic/174300-is-it-possible-to-have-different-colors-for-pfscore1-and-pfscore2/ 2 Quote Link to comment Share on other sites More sharing options...
+Gemintronic Posted July 17, 2015 Share Posted July 17, 2015 Yeah. My game MMSBC 2 uses the flicker technique. It's really, really hard to get it right. Especially since each TV seems to handle flickering a bit differently. 1 Quote Link to comment Share on other sites More sharing options...
Like us on Facebook
Follow us on Twitter
AtariAge on Instagram
Watch us on YouTube
Chat on Discord
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.