Programmer here, as the score variable is a 32-bit integer (which has the maximum value of 2,147,483,647), once you reached that point the score could no longer go up and so to prevent crashing the game restarts counting from the lowest possible score (-2,147,483,648, but the minus is hidden). As this is a negative number, you are indeed gaining score even though looks like it's going down.
signed 32-bit integer. And you r not right at all. the 31 bit determines, whatever value stored in other bits is negative. So, when you add to 2147483647 (01111111111111111111111111111111) 1, it comes to be -2147483648 (10000000000000000000000000000000). This is a feature of two’s complement, nothing moar.
TheAssassinAVA No, I think some libraries can make a variable-length integers. But in fact, they R not needed to regular tasks. Bcause big ints (128 bit) (now) used only in cryptography. So... The answer is no.
I guess thats because in C# int can be set from -2 147 483 648 to 2 147 483 647, ahahah. Probably, Peppy need change "int" to "unsigned int", then range will be like from 0 to 4 294 967 295, or to "double" then max value will be 9 223 372 036 854 775 807, but score will have floating point numbers :D
using 64-bit integers is enough to avert the year 2038 problem, so it's indeed fine....Until someone makes a 6(8?)-hour-plus map where the score can break that, I'm calling it :D
LoneWolfSVK, The score multiplier from combo is getting low and lower with increasing combo. The only way to break it would be to make some Auto play on 5000BPM map. And you can always extend your int64 with another int64 and I seriously doubt you'll ever encounter number higher than 2^128..
Isn't that long. You can pause and go to eat something and back with the same song if u play singleplayer. Btw if it's tipical 3-4* marathon maps u can just play with mouse whithout keyboard and eat something meanwhile, smoke, drink... xD
He was rank 77 with that amount of pp and now 8.432 pp would place you at 3170 rank. Love how much more people started playing this game and how players improved
i dont know how the game would react to negative EXP.. its possible it wouldnt lower your level and just go past 0.. xD try getting to level 2,147,483,647 and then it would level down :P
Swivel_Z the space fills up. When it's counting down the score is still increasing. But shows it decreasing after he fills up the 32 bit system. Thats why his "negitive" score is on top.
Long version of what happend: The score is saved in a 32-bit integer (32 1s or 0s). The biggest positive number is: 01111111111111111111111111111111. The first 0 basically says it's a positive number. Once you add 1 (0...01) to it you get: 10000000000000000000000000000000. Now it's negative (first bit is a 1). And it happens to be the biggest negative number. If you add one again, you get more negative numbers, but they are bigger (as -1 is bigger than -5) than the one you had before. That's why it counts "backwards" at that point. The game just takes the numbers out of the score and shows the pictures you have in you skin folder. It doesn't checkt if it's negative though and therefore in the game the "-" is not shown, but you can still see it on the scoreboard. Also see for more details why it is that way: en.wikipedia.org/wiki/Two%27s_complement
OH MY GOD YOU MANNAGED TO BREAK THE 32-BIT INTERGER VALUE OF 2,147,483,647 XD When you go above that value it will goto the lowest possible value of -2,147,483,647 and then go down from there because your adding more score to it. GOOD JOB m8 YOU BROKE 2^32!
"The number 2,147,483,647 (or hexadecimal 7FFF,FFFF16) is the maximum positive value for a 32-bit signed binary integer in computing. It is therefore the maximum value for variables declared as integers (e.g., as int ) in many programming languages, and the maximum possible score, money, etc. for many video games."
In computers, if you go over some particular number, you start going backwards, because of how negative numbers are represented. In this case it seems like the number was 32 bit integer which explains why after going over 2147483647 the score became negative.
I don't know if this has been brought up yet, but integers indeed cover negative numbers to an equal amount of distance from zero with positive numbers, and in programming (C# I guess since this is osu!), if you add more to the maximum positive value, it loops back to the lowest negative value. I do not understand why peppy or anyone else involved haven't changed the score integer to an unsigned one, which would cover the same amount of numbers, but no negative numbers, so it would pretty much double the amount of max score before looping back to zero.
Nice 32bit integer overflow. I've heard that a very long map that was ready for approval wasn't approved because of this happening on it on CTB, and the mapper had to cut a part of his map to prevent if because this bug won't get fixed
The reasoning for this happening is because I'm pretty sure Osu! is run in 32 bit java, and the largest integer value 32 bit java can hold is 2,147,483,647. This would create an error, and esssentially drop your score to continue the number recording process.
I guess once osu reaches a 32 bit number or 2147483647 the numbers seem to reverse instead of overflowing and starting back at 0. A similar thing happened on UA-cam on gangnam style when the views approached that number, anyways UA-cam fixed it by upgrading to 64bits instead of 32. I think osu should do the same and upgrade to 64 bits for a Max score of 9,223,372,036,854,775,808 that score would take over 163 years to get to so 64bits is best choice if whatever language osu is written in can handle it.
That's one reason why scoreV2 is now being limited to 1m (1,000,000) points, not including spinners and mods. In addition, scoreV2 has a new behaviour of sliders; they require the same timing as hitcircles. Doomsday, please pin this comment so that we can spread the word about scoreV2 in osu!.
yep, as said, the score, being coded on a 32bit signed integer, overflows at 2^31-1 (2,147,483,647) to -2^31 (-2,147,483,648) and continues actually going up
When mom wants you to go to bed and you say "one more song"
xD
Yep
That one longgggg song
hey peppy pls make score 64bit integer so we can rank super long maps thx
60 min metal Mazzerin map? XD
Mazzerin is addicted to metal xd same
or just 32bit unsigned
why don't use strings x)
sorry guys
+kshrubb people typically don't do unsigned because it can cause problems...
If you correct the overflow, his final score is 2,325,924,910. Just thought you all might like to know.
I was about to comment that myself. #feelsbadman
damnnnnn
Programmer here, as the score variable is a 32-bit integer (which has the maximum value of 2,147,483,647), once you reached that point the score could no longer go up and so to prevent crashing the game restarts counting from the lowest possible score (-2,147,483,648, but the minus is hidden). As this is a negative number, you are indeed gaining score even though looks like it's going down.
signed 32-bit integer. And you r not right at all. the 31 bit determines, whatever value stored in other bits is negative. So, when you add to
2147483647 (01111111111111111111111111111111) 1, it comes to be -2147483648 (10000000000000000000000000000000). This is a feature of two’s complement, nothing moar.
DCNick Uhh that's exactly what I said? It could either show an overflow error and crash, or jump to the lowest possible value, which it did.
So what score variable should they use to bypass this problem?
So there is always a limit?
TheAssassinAVA
No, I think some libraries can make a variable-length integers. But in fact, they R not needed to regular tasks. Bcause big ints (128 bit) (now) used only in cryptography. So... The answer is no.
Rohulk won because of his consistency.
idk if that's ironic, but Doomsday would've won
+Anti Matter doomy went with no mod... Rohulk went in with mods...
Jerone Shearer yeah and? Doomsday had a better combo...
Improvement :^)
Anti Matter It's a meme.
that's what happens when peppy decided to use int instead of long...
But... They are two different kinds of values .-.
nope. Int is "integer", long is "long integer"
a long is a decimal value xD
Not only long.
Integer, Double and Long are all decimal values.
integer by definition isnt a decimal xDDD Do you even know what an integer is?
Well, back to the drawing board again Peppy...
its rhyto!
+Matrix31337vr What the heck man!
+IceAngelx S3RL....XD
Rhyto you disapeared! where did you go!
+Matrix31337vr IRL dude, and I've been drawing actually. Got an Intuos Draw (Tablet)
1:56 "I came"
i saw, i came i saw, i praise the lord,then break the law, i take what's mine and take some more, it rains, it pours, it rains, it pours
I suddenly laughed when i've seen Rohulk with HDHR hahaha
and 1x miss..lol
I'm Romanian and i'm proud of my country.Keep it goin',Rohulk!
+Shadow Is Magic same
Skrilletz )/ sal romane
I guess thats because in C# int can be set from -2 147 483 648 to 2 147 483 647, ahahah. Probably, Peppy need change "int" to "unsigned int", then range will be like from 0 to 4 294 967 295, or to "double" then max value will be 9 223 372 036 854 775 807, but score will have floating point numbers :D
There's another integer value, bigger than int. It's long. (64-bit integer number)
DCNick then for osu the best will be unsigned long long :D
Puny Flash
C# has another types, than c++
there is long (64-bit), and no long long (that is usually 64 bit in c++). So it is.
peppy forgot to use unsigned long, what a pleb ;-)
I wonder, how would double do? Sure, the floating point is unnecessary at best, but a range of up to 10^308 seems just a bit safer than 10^19 :D
LoneWolfSVK Well, double is float so it can handle numbers of any size. However I believe that unsigned long should be sufficient.
using 64-bit integers is enough to avert the year 2038 problem, so it's indeed fine....Until someone makes a 6(8?)-hour-plus map where the score can break that, I'm calling it :D
LoneWolfSVK, The score multiplier from combo is getting low and lower with increasing combo. The only way to break it would be to make some Auto play on 5000BPM map.
And you can always extend your int64 with another int64 and I seriously doubt you'll ever encounter number higher than 2^128..
Oh, it gets lower? I thought it increased... well, now I know... And 2^128 is for most intents and purposes pretty much infinity, true.
You're the Psy of Osu.
Psy broke UA-cam
and you broke Osu! xD
now i want to see you break it again when osu! goes 64bits :^)
It won't go for 64 bit, who needs a >2h maps. Man for most people, 3 mins is too long XDD
+Nekola I was being sarcastic :3
and to me 2 minutes is already too long XD
Isn't that long. You can pause and go to eat something and back with the same song if u play singleplayer. Btw if it's tipical 3-4* marathon maps u can just play with mouse whithout keyboard and eat something meanwhile, smoke, drink... xD
I'm going to map a 1 day long map :^)
Because 9223372036854775807
+Gezoda運命夢魔 nah, it would take like 8 hours to get this score, cuz the multiplier is going up so fast xD
3:20 yeah i did it.. oh wait do i have rsi now?
jesus even the doge is suprised
He was rank 77 with that amount of pp and now 8.432 pp would place you at 3170 rank. Love how much more people started playing this game and how players improved
More farm maps. meta. bring back old days.
People with same playtime can achieve much more PP nowadays. Maps just changed to be more farmable
now it would put you at #9 272
If maps like this are ranked is it possible to level down?
i dont know how the game would react to negative EXP.. its possible it wouldnt lower your level and just go past 0..
xD try getting to level 2,147,483,647 and then it would level down :P
From what I've heard, your level is based on Total Score, and I can only assume this would take you in the negative levels because of that
Swivel_Z the space fills up. When it's counting down the score is still increasing. But shows it decreasing after he fills up the 32 bit system. Thats why his "negitive" score is on top.
So, The Score flips from Positive 2.1 Billion to -2.1 Billion but it keeps going up on the score counter if I'm understanding right?
Swivel_Z yeah. The system cant go any further so to keep it from crashing it counts down.
lol, Peppy was too lazy to make a 64-bit integer
integer overflow at its best.
2.14b = 0x7FFFFFFF, 2.14b + 1 = -2.14b = 0x80000000, 0xFFFFFFFF = -1
i love integer overflows, people always have the best reactions to the bugs it causes
Long version of what happend:
The score is saved in a 32-bit integer (32 1s or 0s).
The biggest positive number is: 01111111111111111111111111111111. The first 0 basically says it's a positive number.
Once you add 1 (0...01) to it you get: 10000000000000000000000000000000. Now it's negative (first bit is a 1). And it happens to be the biggest negative number.
If you add one again, you get more negative numbers, but they are bigger (as -1 is bigger than -5) than the one you had before. That's why it counts "backwards" at that point.
The game just takes the numbers out of the score and shows the pictures you have in you skin folder. It doesn't checkt if it's negative though and therefore in the game the "-" is not shown, but you can still see it on the scoreboard.
Also see for more details why it is that way: en.wikipedia.org/wiki/Two%27s_complement
OH MY GOD
YOU MANNAGED TO BREAK THE 32-BIT INTERGER VALUE OF 2,147,483,647 XD
When you go above that value it will goto the lowest possible value of -2,147,483,647
and then go down from there because your adding more score to it.
GOOD JOB m8 YOU BROKE 2^32!
i thought 2,147,483,647 was 2^31
2^31 tho chz computing is retarded
This gives 2B maps a whole new meaning!
Congrats man
you're a legend!
"The number 2,147,483,647 (or hexadecimal 7FFF,FFFF16) is the maximum positive value for a 32-bit signed binary integer in computing. It is therefore the maximum value for variables declared as integers (e.g., as int ) in many programming languages, and the maximum possible score, money, etc. for many video games."
Hey, peppy! How about change the score int(eger) variable to "unsigned long long int (C++, but with C# should work too)"?
It's because the score systems runs on a 32 bit integer and maximum value that you can get to is an estimate of 2.147 billion
In computers, if you go over some particular number, you start going backwards, because of how negative numbers are represented. In this case it seems like the number was 32 bit integer which explains why after going over 2147483647 the score became negative.
I don't know if this has been brought up yet, but integers indeed cover negative numbers to an equal amount of distance from zero with positive numbers, and in programming (C# I guess since this is osu!), if you add more to the maximum positive value, it loops back to the lowest negative value. I do not understand why peppy or anyone else involved haven't changed the score integer to an unsigned one, which would cover the same amount of numbers, but no negative numbers, so it would pretty much double the amount of max score before looping back to zero.
easily one of my favorite videos of osu
serious question for mouse users, how do you deal with mouse drift, especially in long and/or nonstop maps?
Next few update will have minus sign, OSU does not show by default
1:44 first 4 digits are time when John Paul II died xD
1:44 yo, he time traveles in osu! o.o
Everyone's saying that peppy schould nit have used and int
But what if osu was made using basic?
: Thinking:
it broke half of the 32bit integer so the score went negative to avoid a game crash
Nice 32bit integer overflow. I've heard that a very long map that was ready for approval wasn't approved because of this happening on it on CTB, and the mapper had to cut a part of his map to prevent if because this bug won't get fixed
peppy please
It's not a bug, just unexpected to be a logistic problem.
osu should upgrade their servers to 64-bit
that's the hapi pokemon marathon, i think. i don't remember it being cut though? i thought he was going to wait to see if it would be fixed.
I sat in the lobby for 40 minutes waiting for them to finish and I came on the scoreboard, wat?
Top fucking kek Oliver.
c:
And that's why you use unsigned long int
I think I got B rank on V2 on this map back in February. I definitely wanna redo this map more :3
Can you play Everything Will Freeze ? You can choose which difficulty if you want to :)
i can't help but imagine how many levels that would add to my profile lol
the focus to play an hour long map, 15 hours into a 24 hour stream
thank you for playing ~
meow
2:19 anyone knows the song in the background?
11,670 combo is when the score breaks.
I remember back in maplestory, buying da godly items for max meso (2,147,483,647)
its actually insane Doomsday was the first person (probably?) to pass the 32 bit integer value in osu score, breaking the game *7 FUCKING YEARS AGO*
What's 8bit song was at beginning
signed 32-bit integer overflow
doomsday is over here FCing this song here i am with a C rank on it currently
***** well with that high of a combo it donesnt really matter XDD
truuuuuu
I actually did this myself too. I did take breaks every time theres a break in that map though i beat it at like 3am
The reasoning for this happening is because I'm pretty sure Osu! is run in 32 bit java, and the largest integer value 32 bit java can hold is 2,147,483,647. This would create an error, and esssentially drop your score to continue the number recording process.
Osu is written in c#. Peppy just needs to change score variables to unsigned ints
offtopic but can someone tell me what's the song at 3:27?
Need to get that map... To get 2K Combo achievement!
Do achievements work on unranked maps tho?
GreenLollipop Oh... I just realized 2 days ago that it was unranked, although I passed the map for 5-9 tries ;-;
They don't. It has to be ranked. *Cries as it will be the only Achievement I'll struggle to get*
4:26 shoutout to doomsday's dog
does anyone have a link to the skin doom uses? much appreciated if you do
32 bit Integer haha
I always thought that game score is stored in 64-bit number (8 bytes variable)
score overflowed XD
now they need unsigned long long for it
singletapped 7300 times and "alternated" 930 times
the power of singletapping
How you see Unranked ranking ? Is for all maps ?
Why would you use signed integer for score value anyway?
Whats the song at 0:02?
amazing score dood xD
So now the "Limit Does Exist"
the good old times before scorev2
Omg you did it, you bbroke the game.
i feel like ive seen this video. this is a re upload, right?
Just like max cash strack on RuneScape haha; brilliant
congratulations bro, u broke the osu xD
I guess once osu reaches a 32 bit number or 2147483647 the numbers seem to reverse instead of overflowing and starting back at 0. A similar thing happened on UA-cam on gangnam style when the views approached that number, anyways UA-cam fixed it by upgrading to 64bits instead of 32. I think osu should do the same and upgrade to 64 bits for a Max score of 9,223,372,036,854,775,808
that score would take over 163 years to get to so 64bits is best choice if whatever language osu is written in can handle it.
it's only a matter of time before cookiezi hddt this
ples unsigned long long for score thanks
Nice 2.325.924.910 :v)
What about synchronization?
doomsday’s consistency is fucking insane
today shall forget be known as the day doomsday broke osu!
integer limit, 2^32
thanks peppy
Will the score decrease when I lose the combo?
playing this beatmap and failing at the end
yo that Jarvis guy is a real pro
That's one reason why scoreV2 is now being limited to 1m (1,000,000) points, not including spinners and mods. In addition, scoreV2 has a new behaviour of sliders; they require the same timing as hitcircles. Doomsday, please pin this comment so that we can spread the word about scoreV2 in osu!.
2:49 OH HOLY FREAKING *FUUUCK*
what is the link for the map?
Quick fix would be to change score variable to unsigned integer... wtf.
in this world its kill, or be killed...
YOSHILOVE YOU BROKE DOOMSDAY.
this is why you use longs peppy
Only Doomsday can get 16k views to under a 5 star map within 24 hours
Mom: Time to go to bed!
Me: Wait, one more osu game...
Push it to the limits!!!
when you're too good that your score is decreasing instead of increasing
Mashiro Iro is one of my favorite anime lol
why is it signed!
yeah at 2billion and smth the score goes back thats there for a long time
yep, as said, the score, being coded on a 32bit signed integer, overflows at 2^31-1 (2,147,483,647) to -2^31 (-2,147,483,648) and continues actually going up
you're a beast...
4:18 is that a shiba inu ?
82 Minutes of pure ar 8 cancer... wonderfull ! :D
hes reaching the best title again boys
replay?
heh, just getting half a million at each hitcircle :^)