4
Apparently I had a high tolerance for pain
(programming.dev)
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
this post was submitted on 17 Jun 2023
4 points (100.0% liked)
Programming Horror
1634 readers
1 users here now
Welcome to Programming Horror!
This is a place to share strange or terrible code you come across.
For more general memes about programming there's also Programmer Humor.
Looking for mods. If youre interested in moderating the community feel free to dm @Ategon@programming.dev
Rules
- Keep content in english
- No advertisements (this includes both code in advertisements and advertisement in posts)
- No generated code (a person has to have made it)
Credits
founded 1 year ago
MODERATORS
PA_prefixed functions seem to be from palibds, which is a Nintendo DS homebrew development library.DS being a constrained device it is logical that whoever wrote this code packed multiple byte-sized info into a bigger 16-bit short and using bit shifting to extract a specific byte
You're right, this is some homebrew I wrote for my DS when I was in highschool.
But it was nothing as clever or logical as that! I think I had read somewhere that floats were really expensive on the DS ARM9 CPU, as was division (?). So to allow fractional values for object positions, etc, you would store them in an integer at 256x their true value, then shift it by 8 to the right to 'divide' by 256 and get the proper value back.
Not sure whether this was actually true, but either way this would've been completely cancelled out by calling that 'lowestXInObj' function 20 times per frame - it loops through every object in the scene!