Game Development

The Masked Rebel

2:23 PM

hi

am I alone here?

or is it just sunday

user92578

no you are not alone

The Masked Rebel

are you working on anything

user92578

I've been doing just a bunch of random stuff today, haven't really been able to focus on anything

The Masked Rebel

I've wanted to work on multiplayer but I can't play videos :(

user92578

:(

The Masked Rebel

2:34 PM

there is nothing quite so permanent than a quick fix

bbc.co.uk/news/av/technology-44575392/…

170141183460469231731687303715884105727

that is the largest known prime number

user92578

2:50 PM

not true

user92578

it's 2^77232917 − 1

The Masked Rebel

@Tyyppi_77 It is more than 22 million digets long

user92578

lol your number is from 1876

user92578

@TheMaskedRebel yup exactly, which is why I gave the mersenne form

The Masked Rebel

@Tyyppi_77 It is the first number that a computer calculated

See this:

23

Q: Why was 2^127-1 an interesting problem for "Baby"?

The BBC News article The 'Baby' that ushered in modern computer age along with the short embedded video begins with: A machine that took up an entire room at a laboratory in Manchester University ran its first program at 11am on 21 June 1948. The prototype completed the task in 52 minute...

user92578

2:55 PM

@TheMaskedRebel I'd like a source for that statement

The Masked Rebel

@Tyyppi_77 I've just given you one

user92578

Well that's sort of an missleading statement since it gives off the impression that a computer found the number, which is not true

The Masked Rebel

@Tyyppi_77 I'll get that

here it is

@Tyyppi_77 180×(M127)2+1

user92578

what?

The Masked Rebel

@Tyyppi_77 That is the largest prime number a computer calculated

nwp

3:02 PM

That's not a number, that's a syntax error.

user92578

^

user92578

@TheMaskedRebel What have we talked about edit pinging???

user92578

that's still garbage

The Masked Rebel

@Tyyppi_77 Sorry

user92578

The conversation here would flow much more fluidly if you didn't ping me every time

user92578

3:04 PM

That way you could edit your messages freely without upsetting anyone unnecessarily.

The Masked Rebel

180×(M^127)^2+1

user92578

What is M?

user92578

Also, the largest prime number calculated by a computer is the one I shared above

The Masked Rebel

fine the first prime number calculated by a computer

user92578

this has been a great conversation

The Masked Rebel

3:13 PM

I'm off to learn some networking

The Masked Rebel

3:34 PM

ping me if you want

The Masked Rebel

3:49 PM

hi @Jimmy

Jimmy

hi

The Masked Rebel

how are you

Jimmy

good, having a lazy Sunday

The Masked Rebel

4:06 PM

I'm still learning about networking

Jimmy

good job

take it step by step

like start by writing the simplest client/server example that just runs on one computer first

The Masked Rebel

I'm following a tutorial

Jimmy

okay

The Masked Rebel

which seems to be nothing about networking and all about UI management :P

user92578

sounds like a bad tutorial

The Masked Rebel

4:15 PM

I've watched it before and on the 11 episode he picks up networking after a very long apology

for focusing on UI instead of networking

user92578

so why are you watching the first 10 episodes then?

The Masked Rebel

because I need to learn a bit about UI management

@Jimmy The tutorial I'm following has its own code that I'm copying

user92578

do you tho?

The Masked Rebel

yup I do

user92578

because you set out to learn how to setup a swing UI?

user92578

4:21 PM

or because you want to copy his code exactly?

The Masked Rebel

both things

user92578

I wouldn't really waste the time 10 episodes setting up an UI

The Masked Rebel

I am learning stuff about Window Builder and JFrame's that I wouldn't have learned elsewhere.

@Tyyppi_77 To be honest that is the reason

user92578

@TheMaskedRebel Sure you would, when you would have needed that information

user92578

sounds like a terrible way to learn but meh, maybe it works for you

The Masked Rebel

4:29 PM

@Tyyppi_77 It does. And remember that I've watched the tutorial before and I know what it contains so this isn't out of impulse.

@genaray hi

genaray

So i decided to move away from doing everything using MySql... well i still use it ... but only once on startup and once when the server is shutdown. And i only store important player data... not the unimportant anymore... but theres one problem... i somehow need to manage my chunks serverside... Whats an better approach ? A nested map like this : Map<Integer, Map<Integer, Chunk> or a two dim array ? It should be extremly fast. So i thought the nested map would be better... is this true ?

The first integer of the map represents x and the second one y...

The Masked Rebel

@genaray Try both and decide for yourself

user92578

What kind of access do you need? Do you always have like just a 5x5 of chunks around a player?

The Masked Rebel

@genaray I think a 2 dim array is better

Almo

why

genaray

4:33 PM

3x3 chunks around each player... I just want to store "buildings, resources and mobs" for each chunk, thats pretty much all.

The Masked Rebel

@Almo Because nested maps are sometimes a bit odd

user92578

@genaray Just that, nothing else?

Almo

that doesn't sound like a good reason to me

user92578

Your use case is "For each player, store 3x3 chunk area around them"

The Masked Rebel

@genaray Or you could create your own map to store them

@Almo You're right

genaray

4:35 PM

@Tyyppi_77 Exactly. Its just for storing those data server side... oh wait. Not exactly 3x3 for each player... 3x3 chunks are only visible for each player... There a lot more chunks actually... Its some kind of open world.

user92578

Yes but you only need 3x3 chunks stored at once for a player, right?

user92578

In that case, I'd definitely go with a 2D array, because you don't need the hashing

genaray

@Tyyppi_77 Yep thats right. Once he jumps to another place, i load the new 3x3 area

@Tyyppi_77 Alright thanks :D

The Masked Rebel

@genaray How is your game getting along

genaray

@TheMaskedRebel I implemented weapon upgrades... but now i need to recode a lot of stuff due to my high usage of MySQL querys >.<

@TheMaskedRebel What are you working on ? :)

The Masked Rebel

4:39 PM

@genaray Networking

I'm developing "The Death Corner"

@genaray What IDE are you using

user92578

oh i didnt know you had a game project

The Masked Rebel

See my chat profile

genaray

@TheMaskedRebel Im using Java serverside and unity client side ^^ ... do you already have a facebook page, youtube channel or some kind of blog ? :D

The Masked Rebel

@genaray No

user92578

lol that didnt explain anything new after your "I'm developing "The Death Corner"" message

The Masked Rebel

4:42 PM

Integrated development environment

An integrated development environment (IDE) is a software application that provides comprehensive facilities to computer programmers for software development. An IDE normally consists of a source code editor, build automation tools, and a debugger. Most modern IDEs have intelligent code completion. Some IDEs, such as NetBeans and Eclipse, contain a compiler, interpreter, or both; others, such as SharpDevelop and Lazarus, do not. The boundary between an integrated development environment and other parts of the broader software development environment is not well-defined. Sometimes a version control...

that is what I meant :)

@Tyyppi_77 its a war game with two armies in two teams

user92578

cool, what have you got so far?

genaray

@TheMaskedRebel Oh sure... sorry xD Well Eclipse for java and Visual Studio 2017 for c# ;)

user92578

How did you choose Java for serverside?

The Masked Rebel

@Tyyppi_77 I'm still developing the game engine.

user92578

I see.

user92578

4:45 PM

Why did you choose to build your own game engine for the game? Are the existing game engines not capable of what you want?

genaray

@Tyyppi_77 There was no other option... im using a pretty cool server sdk which does the most stuff for me ^^ ... in my case its petter to use this instead of developing an own server side environment

user92578

ah, sounds like a good reason! :)

The Masked Rebel

@Tyyppi_77 I want to develop game engines and this game is meant to be a fun exercise :)

@genaray What is the server called

genaray

@TheMaskedRebel Its called "SmartFoxServer"... pretty cool tool for rapid development :) It allows to implement own extensions and stuff... They already implement their own area of interest... ban tools... zone tools and much more ^^

But the website looks awfull xD

The Masked Rebel

CAn I see the website

genaray

4:49 PM

smartfoxserver.com

here you go... but otherwise great product :D

The Masked Rebel

yup

user92578

@genaray a lot less sketchy looking than I expected

genaray

:D well

The Masked Rebel

@genaray The top bit is very bad

genaray

Yeah... i bet they could increase their sales by just improving their UI >.<

The Masked Rebel

4:54 PM

right now I am fixing a problem with my IDE

user92578

which one do you use?

The Masked Rebel

eclipse

user92578

ugh

genaray

xD

The Masked Rebel

5:08 PM

how do I remove plugins with the latest photon release.

Almo

argh eclipse

user92578

bad ide for a bad language made in said bad language

Almo

I'd rather use GIMP than Eclipse.

:O

user92578

man I am really pissed off, they made GIMP a lot worse with a new update

Almo

:(

that sucks

FreezePhoenix

5:11 PM

Hi

The Masked Rebel

@FreezePhoenix hi

Code never lies

FreezePhoenix

hm? Sometimes it does.

The Masked Rebel

nope we misinterpret the code

user92578

that's not really true

FreezePhoenix

Lying phones were developed a couple years ago

The Masked Rebel

5:19 PM

?

FreezePhoenix

Phones that would tell a lie in the way of what phone numbers were called

Almo

Local code can lie

c = a * b;

The Masked Rebel

@genaray an you help with my eclipse error message

genaray

@TheMaskedRebel What error ?

Almo

if that's overloaded for matrix multiplication... it's doing something a lot different than it looks like

The Masked Rebel

5:20 PM

genaray

@TheMaskedRebel Looks like the plugin isnt compatible anymore...

The Masked Rebel

@genaray What do I do

Almo

hit the google for what to do

seriously, it's what I would do if I had that problem

The Masked Rebel

I've done that already

Almo

not trying to be a dick here

genaray

5:23 PM

@TheMaskedRebel Try to update it ... or disable it xD

The Masked Rebel

@genaray I looked on google for how to disable plugins and got... nothing

genaray

@TheMaskedRebel Help -> Eclipse Marketplace -> Plugins... there should be a option to remove them somwhere

Almo

google.com/…

first hit

wiki.eclipse.org/FAQ_How_do_I_remove_a_plug-in%3F

seriously, it's not that hard to find stuff like that

The Masked Rebel

We must have very different googles

the first hit was a stackexchange site

of 0 value

FreezePhoenix

No... different google search histories

user92578

5:26 PM

then you search more

user92578

this kind of stuff is not hard to find, even if the first link is to stack overflow

Almo

90

Q: Temporarily disable Eclipse plugin

Is there a way to disable an Eclipse plugin without actually uninstalling it? (Eclipse 3.3 had a "disable" button but this is now missing from Eclipse 3.4+.)

eclipse eclipse-plugin

second hit

looks like it works

The Masked Rebel

@genaray what version of eclipse are you using.

genaray

@TheMaskedRebel Luna... Not the newest one... but im not using any plugins

The Masked Rebel

I'm using Photon

Wow the eclipse IDE just gave itself a makeover

To code or not to code

There is no place like 127.0.0.1

wow the eclipse IDE just crashed

FreezePhoenix

5:39 PM

@TheMaskedRebel you're not making much sense anymore

Almo

@TheMaskedRebel not surprising

The Masked Rebel

@FreezePhoenix That is because my internet is lagging

Almo

Eclipse is not very good

The Masked Rebel

@Almo Its the only thing I can afford

user92578

Isn't IntelliJ free?

The Masked Rebel

5:41 PM

@Tyyppi_77 no its $47

FreezePhoenix

Does anyone have an OpenWeatherMap account...

user92578

Looks like they have a free Community version, just like Visual Studio

The Masked Rebel

I'll look for it

@Tyyppi_77 jetbrains.com/idea/download/…

is that the free one

Almo

5:59 PM

you shouldn't need to ask us that

FreezePhoenix

Lol

@Tyyppi_77 hey

genaray

6:17 PM

Would it be either better to "live" update the players inventory when dropping/picking up something ? Or would it be better to save the inventory of each player every minute once ?

FreezePhoenix

Update the UI, but save every minute and on quit

genaray

@FreezePhoenix Thanks :)

FreezePhoenix

So don't save the file when dropped, etc

Oh, and remember, save everything at one time every minute or so. That way it is at a gvien point

genaray

Well actually i thought about saving in the database ^^

FreezePhoenix

?

FreezePhoenix

7:21 PM

Well...

James Trotter

7:34 PM

OK so im still trying to implement beat detection based on archive.gamedev.net/archive/reference/programming/features/…

can anyone decipher the line "We must compute the variance of the energies contained in the energy history buffer (E). This variance, which is nothing but the average of ( Energy Values – Energy average = (E) - <E> )"

in I1c

FreezePhoenix

It computes the variance

James Trotter

i have the "history buffer" its talking about, is it saying subtract the sum of all the history values from the average?

genaray

thats strange... normally my method should be called once every minute after startup... somehow it just calls once at all... No error... strange

FreezePhoenix

@genaray can you show the timing method?

@JamesTrotter NO

Subtract the individual values from the average

That way you have a buffer of all of the deltas (Differences)

James Trotter

and sum the result,and do the 1/43 x that sum?

FreezePhoenix

7:38 PM

NO

genaray

@FreezePhoenix I really would love to... but those tasks are managed trough an api :/

James Trotter

🤦

FreezePhoenix

@genaray did you change anything big?

Can someone five me a screenshot of that emoji... I can't see it.

genaray

@FreezePhoenix No... i never touched any api code :P

Jimmy

hi James

James Trotter

7:40 PM

its a face palm, lol

Jimmy

variance is a measure of "how far each item is away from the average"

FreezePhoenix

@genaray No no... I meant in your code

@Jimmy I've been trying to explain that

genaray

@FreezePhoenix Not either... maybe its just a logic mistake :/

James Trotter

I'm just confused when i use the variance values I guess

FreezePhoenix

Hm. Did you put an And statement where you meant Or

James Trotter

7:42 PM

"Compute the 'C' constant using a linear degression of 'C' with 'V', using a linear regression with values"

Jimmy

you can do average = calculate_average(arr); variance = sum((x - average) ** 2 for x in arr) in pseudo-Python code

uh, I'm not sure what that part means, --- nevermind, found the pdf---

genaray

@FreezePhoenix Not either... i think im gonna try to call it at a different intervall for the first

James Trotter

so i do want the average variance, and thats the value I use?

FreezePhoenix

@JamesTrotter NO

You want a buffer of variances

Jimmy

what value are you using for "C" right now?

James Trotter

7:43 PM

but I only want a single value of "C"

hard-coded to 1.3

FreezePhoenix

So loop over each item, and replace it with the variance

Wait yes

You had that right

@JamesTrotter Correct

James Trotter

ok cool i think I got it then

makes sense

Jimmy

so just hard-code to 1.3 and ignore all the degressio part?

James Trotter

thanks

Jimmy

that formula is just to calculate a "better" value of C for your particular music sample

but if fixed 1.3 works for you then you don't need it

James Trotter

7:45 PM

yeah no i do want it calculated

its working for some songs but not others,pretty much how he described in the document

Jimmy

lol what a weird article

as soon as you get the dynamic C working it asks you to convert to a FFT-based calculation

James Trotter

lol yeah

I'm hoping to use data taken from both techniques

unless the second one in practice is just obviously superior in every way

then its all just a learning excersise ¯_(ツ)_/¯

Jimmy

I suspect with the right tuning the FFT approach is better

FFT tells you "all frequencies that have a strong periodic component", which would fail for really avant-garde non-periodic music, but otherwise does a good job of picking up regularly spaced sounds

the "simple beat detection" can only tell you whenever the song gets "suddenly louder" which may not always be a beat, and can't necessary pick up, say, a second quieter instrument having a beat

FreezePhoenix

Gasp I can't believe I left a github staff member waiting

github.com/github/linguist/pull/4137

James Trotter

8:01 PM

Yeah, I was thinking if I apply a low-pass filter to the track and feed it through the first algorithm I might get better confirmation on like drum beats and stuff whilst trying to filter out most instruments and vocals

But I'm not sure how well it will work

And like you say, since it's using FTT to do the detection it already knows about the frequency the beat was detected for so might make it rather redundant trying to filter for specific frequencies

Jimmy

I've been following github.com/github/linguist/issues/2627 for like 2 years ... it's pretty frustrating as a language designer to not be able to customize this per-repo

genaray

Does anyone have an idea what could cause this piece of code to crash without an error ? public String toMySQL(){

int generatedR = generatedResources ? 1 : 0;

int generatedM = generatedMobs ? 1 : 0;

SimpleDateFormat dateFormat = new java.text.SimpleDateFormat("yyyy-MM-dd HH:mm:ss");

return "("+id+","+x+","+y+","+generatedR+","+dateFormat.format(generatedResourcesDate)+","+generatedM+","+dateFormat.format(generatedMobsDate)+")";

}

FreezePhoenix

@Jimmy Walk me through making a language sometime, will you?

Jimmy

it's not that hard in some ways, although the theory goes really deep if you dig in

the basic architecture for any language is a frontend that turns text (your source code) into a tree representation, and a backend that either turns that tree representation of code into machine code (a compiler) or runs it (an interpreter)

FreezePhoenix

github.com/github/linguist/pull/4174#issuecomment-399783798

Gah people just give me some time

Jimmy

8:13 PM

so if your language is "arithmetic", the frontend turns "2 + 3 * 4" into "Add(Number(2), Multiply(Number(3), Number(4)))" which the backend turns into some kind of assembly like "load eax, 3; mul eax, 4; add eax, 2;" (made up syntax, but you get the idea)

@genaray step through it with a debugger?

genaray

@Jimmy I already did... multiple times... but no error, exception or any other iusse...

Jimmy

then there's nothing wrong with that code

maybe it's crashing at a different point

if your debugger successfully steps out of the function, it's not causing a crash

FreezePhoenix

8:33 PM

Yes

I see where the error is

Does anyone have an idea what could cause this piece of code to crash without an error ? public String toMySQL(){


int generatedR = generatedResources ? 1 : 0;

int generatedM = generatedMobs ? 1 : 0;


SimpleDateFormat dateFormat = new java.text.SimpleDateFormat("yyyy-MM-dd HH:mm:ss");


return "("+id+","+x+","+y+","+generatedR+","+dateFormat.format(generatedResourcesDate)+","+generatedM+","+dateFormat.format(generatedMobsDate)+")";

}

is not valid code (JK)

spiderlang.org

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