Screenflip 90 degrees

Comikal · Post by **Comikal** » Mon 03 Jan, 2005 1:17 am

I know this is announce your projects forum, but if someone has free time. I'd like for someone to make a program that flips the screen at 90 degreees, allowing you to have 16 columns and 8 rows. I'm starting to undertsand, well not really, ASM lang, and its something that I want to use for games.

If the moderators see fit, I don't care where this post goes, as long as its replied to.

Edit kv83: Changed title

Post by **tr1p1ea** » Mon 03 Jan, 2005 3:57 am

Moved to 'Program Ideas'.

Also i dont get what you mean? Which calc is this for?

If you are talking homescreen then there are already 16 columns and 8 rows.

Comikal · Post by **Comikal** » Mon 03 Jan, 2005 9:40 pm

oops, 16 rows and 8 columns for the Ti-83+

blueskies · Post by **blueskies** » Mon 03 Jan, 2005 11:44 pm

on the 82/83 line, there are only 12 columns. 85/86 have 16.

Why would you need this flipped around screen? You would end up with empty space on the sides (4 columns worth). Why kind of game are you looking to make with this setup?

Post by **Patori** » Wed 05 Jan, 2005 3:47 am

I would just like to see some code for rotating sprites 90 degrees. That might be usful for some type of game... *begins coding idea*

Jim e · Post by **Jim e** » Wed 05 Jan, 2005 4:39 am

90 degrees is easy now an arbitrary number of degrees thats tough

Code: Select all

;de = old sprite
;hl = 8 bytes to save new sprite 
Clockwise:
  ld b,8
rotloop:
  push hl
  ld a,(de)
  inc de
  rla
  rr (hl)
  inc hl
  rla
  rr (hl)
  inc hl
  rla
  rr (hl)
  inc hl
  rla
  rr (hl)
  inc hl
  rla
  rr (hl)
  inc hl
  rla
  rr (hl)
  inc hl
  rla
  rr (hl)
  inc hl
  rla
  rr (hl)
  pop hl
  djnz rotloop
  ret

3 minute code, that was fun, gimme another

Comikal · Post by **Comikal** » Fri 07 Jan, 2005 1:31 am

can you make a program or app, I think app would be better, since i need the effects to stay, unless you can make a program that flips text, and sprites.

Jim e · Post by **Jim e** » Fri 07 Jan, 2005 7:34 am

Ok, you haven't given any info on want you really want, and what you need it for. Be specific, also i don't think anyone would make an app just to flip the screen, seems pointless when you could just have all the sprite rotated.

Post by **tr1p1ea** » Fri 07 Jan, 2005 9:15 am

You want this as a prank or something Comikal?

Comikal · Post by **Comikal** » Fri 07 Jan, 2005 11:04 pm

I have a program idea in my head. Of course, an idea can surface and go under in a sec, but I have something in mind.
Like, for example, if I were to make something like tetris, or an arcade style game that involves vertical scrolling, but not horizontal scrolling.

merthsoft · Post by **merthsoft** » Sat 08 Jan, 2005 3:36 am

Yeah, you make very little sense, but:
@blueskies: the 82/83 has 16 rows on the homescreen, only twelve if you use 8x8 sprites, technically 8 columns (columns are up and down, like the column of a building...).

blueskies · Post by **blueskies** » Sat 08 Jan, 2005 5:16 am

ooh, I wasn't thinking about the homescreen, as in BASIC programming, or normal math entry. I was thinking about 8x8 tiles, and how many fit onto the screen. You're right though, the homescreen is 16x8.