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This is the first "blog" of any kind I've ever had, so it's probably not the greatest...

Just a little snippet about me:

I'd like to consider myself relatively tech-savvy; obviously I use Linux (Arch to be precise; K.I.S.S. FTW), and I enjoy learning new things about computers in general (both software and hardware-related).

This blog is mostly just for whenever I feel like telling the world about my experiences with computers/Linux (or just life in general), or just posting for the hell of it.
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My first "FOSS hack"

Posted 02-04-2011 at 04:16 AM by MrCode
Updated 02-04-2011 at 04:17 AM by MrCode

I was mildly annoyed at the fact that LTris only lets you choose between 50, 100, 200, and no limit (as many frames as the system can render at a time) as FPS options, so I took the liberty of changing:

Code:
switch ( config.fps ) {
    case 1: fps_delay = 20; break;
    case 2: fps_delay = 10; break;
    case 3: fps_delay = 5; break;
}
to:

Code:
switch ( config.fps ) {
    case 1: fps_delay = 17; break;
    case 2: fps_delay = 10; break;
    case 3: fps_delay = 5; break;
}
in tetris.c, and building it up from source into a custom package (I'm really liking the Arch Build System right now ):

Code:
$ makepkg -o #extract source without building

[do tweaks]

$ makepkg -e #build from ./src dir, without extracting from source archive
# pacman -U ltris-1.0.14-1-i686.pkg.tar.xz
I even changed the menu entry to fit the change:

in manager.c:
Code:
char *str_fps[] = { _("No Limit"), _("50 FPS"), _("100 FPS"), _("200 FPS") ,};
Code:
char *str_fps[] = { _("No Limit"), _("~60 FPS"), _("100 FPS"), _("200 FPS") ,};
I say "~60" because the timer is in milliseconds, 1000/60 = 16.(6)*, and fps_delay is an int, so I couldn't use the exact value (this might be why 50 FPS is given as the lower option instead of 60 ). But hey, 17 is probably a good-enough approximation, and I think it works well, even if it isn't in perfect vsync.

I guess you could say this is my first "hack" on a piece of open-source software. Yeah, so it merely consisted of changing the value of a variable assignment and the contents of a character string (i.e. no real structural changes ), but at least I took the time to do it...

Do I get my FOSS geek cred now?

(* - "16.(6)" means "sixteen point six repeating", or "16.66666666...".)
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