League of Legends data scraping the hard and tedious way for fun
20 comments
·February 12, 2025moonshadow565
> League of Legends runs on a custom game engine developed in 2009.
Developed by Sergey Titov (same engine that powers Big Rigs).
killerteddybear
Big Rigs: Over the Road Racing?
m0w0kuma
I've been working on something similar [1], but I took a different approach: I statically extract all decryption stubs using a IDA script I wrote, then emulate them using Unicorn. I'm also interested in your implementation details—do you have your code on GitHub or somewhere else?
SpaceManNabs
One of the cool things about dota is that opendota and stratz provide a lot of data because steam is relatively open.
it is how i wrote a blog post on generating builds for heroes before dota plus even had the feature!
picafrost
A tip:
@media (prefers-color-scheme: dark) {
img[src*="svg"], img[src*="png"] {
filter: invert(1) hue-rotate(180deg);
}
}null
Kuinox
The diagrams are not visible in dark mode.
doix
document.querySelectorAll('img').forEach(img => img.style.background = 'white');
null
bilekas
I see comments like this a lot actually and I'm curious, if the client is manipulating the intended style and layout of the site, do you really think it's the responsibility of the website owner ?
Otherwise I'm confused why you mention it.
doix
This isn't the case of a browser plugin modifying the styles. The blog framework or whatever detects what your browser/system preference is and respects it. So if you've got your browser/os set to "dark mode" the page renders in "dark mode". Except the author used transparent images with dark lines, so they are invisible.
I think it's fair enough to complain about.
akerl_
The site automatically displays in dark mode if the browser says it’s using dark mode.
So this isn’t something the user is doing to manipulate the style and layout: their browser is saying “hey, fyi, this user’s local system biases to dark mode” and the site is choosing to respond by styling in a way that breaks diagram visibility.
bool3max
In this case yes because the website itself has a dark-mode toggle in the top right corner, and in its dark mode, the images are not visible.
bilekas
Ahhh I missed that! That's completely fair then
jwagenet
The blog has a toggle for darkmode and some of their images are black text with a transparent background. When darkmode is toggled, the text is effectively invisible, so in this case it seems to be an oversight of the blog.
null
stordoff
This site has a theme picker to toggle between light and dark modes.
armanckeser
Really cool project! I am not sure if this is only me, but your dark theme is hiding the illustrations fyi.
null
This is really something cool, and it is exactly what I was looking for. To give a context, I worked on some data science-inspired studies [1] about LoL, and the future research direction is to provide a formal modeling for the games and analyze them through it. While I had a little success by getting aggregated data from websites such as uol.gg, the granularity is not fine enough to do very interesting analysis.
[1] https://doi.org/10.1016/j.ipm.2023.103516