Game Development - 2016-02-08 (page 2 of 3)

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user92578

5:00 PM

What does Normalize do?

@KaareZ I think you're missing the point of abs

user92578

abs(-1) = 1

user92578

abs(1) = 1

all it does is convert negative numbers to positive

@KaareZ Never ever use implicit downcast from a floating point to int. There are several standards on how to do it, and so you just learn an idiom in one language/environment which will bite you in the arse in another one.

5:00 PM

it doesn't work the other way

@Tyyppi_77 i thought -1 when negative, 0 when positive ... but maybe not

abs(x) { if (x < 0) { return -x; } else return x; }

user92578

pretty sure that uses branching too wardy

@Tyyppi_77 normalize ?

user92578

yeah

5:01 PM

hmmm

Without knowing if - for example - -0.333 gets cast to -1 or 0 (both are possible), I don't even know what your original code is doing.

yeah, I'd prefer keeping everything in floating-point and using floor() or ceil() as appropriate

Guess I will stick with the if statement for now

otherwise, try a few methods.

Set up a benchmark test

user4704

@AlexandreVaillancourt That's fine, there's nothing wrong with concise descriptions.

5:03 PM

There are four standards for rounding: "towards 0", "towards closest infinity", "towards positive infinity" and "towards negative infinity" (the latter one is not used anywhere outside of joke languages, as far as I know). Different languages do it differently.

user4704

Tag wikis that have a bunch of "feature lists" or links to "tutorials and resources" tend ot end up getting a lot of junk edits to keep those lists up-to-date, which isn't really the point of the site or the wikis.

user4704

Tag wikis should document the context and use of the tag on the site, not document the thing being tagged, act as advertisement or marketing for that thing, or teach users how to use that thing.

user4704

@MartinSojka I like to round towards 4.

user4704

Just to screw with people's brains.

@JoshPetrie Yes, but you are evil.

So yeah, I'd try something like chunkPos = floor(globalPos / divider);, but check the documentation to make sure floor(...) actually does what you think it does with negative numbers (else look for something like round_down(...) and similar).

5:11 PM

wow

Alexandre Vaillancourt

@JoshPetrie Yeah, there was a bunch of other "features" on the features page, but I thought that if users wanted to learn more, well.. click on the link to the engine's web site.. That page will be up to date!

user92578

5:25 PM

user image

user92578

Finally got to replacing the god-awful WinAPI file dialogs

user92578

I might want to customize that dialog later to include like a small preview image of the level or something

user92578

Thumbnail!

user92578

that was the word I was looking for

jgallant.com/picrosstouchweb

user92578

5:29 PM

that's cool and fun

Yeah, that is essentially the ios version

PearsonArtPhoto

It's pretty cool. I'm back to the having a valid configuration and not winning is annoying camp...

the code for it is really bad at this point, lol

but it is done.

optimized -- just ugly

PearsonArtPhoto

Some of the later levels there are two configurations that are equally valid from an aesthetics point of view, but it just isn't a win.

like.. lots of duplication

@PearsonArtPhoto try it again now

PearsonArtPhoto

5:34 PM

Duplication happens.

I added something for you

PearsonArtPhoto

:-)

I'll try it when I get home with my tablet.

ok, i updated the android version too, so get 1.20

user image

and it goes "DUUUHHH DUHHHH!"

PearsonArtPhoto

Hmmm.

Well, at least it lets you know there's something off.

I see you can't drag across rows/columns anymore, which is probably a good thing.

It's obvious that something was wrong (Tested hard 16), but... No sound testing, unfortunately.

Will have to try it at home when I can do a better test of it.

Add any more levels?

no

was mainly a ios port

PearsonArtPhoto

5:40 PM

Ahhh.

It's a very nicely done app overall, I must say.

@Tyyppi_77 The level editor crashed anytime I clicked anything

thanks

It is broken if you ask me.

The drag thing, is an option too.. so if you don't like it, you can disable it

PearsonArtPhoto

The problem is, if I want it or not it'd be level specific.

There are some levels where dragging across rows is handy. Most of the time it isn't.

5:42 PM

ah, well that wasn't planned, hehe

PearsonArtPhoto

If you edit the main level then it might be worth considering adding a checkbox on the level to set it. Not a huge issue, mind you, but...

or just a options menu popup woudl have been a better idea

oh well maybe some day I will do that

PearsonArtPhoto

Yeah, that too.

Nah, keep working on procedurally generated worlds:-)

I think my world is going to eventually depend in large part on Perlin noise generation. I'm still trying to figure that out, but... It will be more than meets the eyes.

I think I'll use it somehow in my supply/demand factoring.

6:36 PM

holy shit

i'm the featured article on gamasutra

6

dead center

FUCK YEAH

shame we don't have the game up on the store yet

(not blaming you for that)

it is ready

android version was updated

I'll get it built tonight

i'll get you the free build tonight too

will take around 5 days for apple to approve the app

6:42 PM

apple is soooooo slow

I hand picked some levels for the free version

better experience in the free version

:)

PearsonArtPhoto

How far along is your ship trading game?

who

PearsonArtPhoto

Jon.

pre-foxtrot

PearsonArtPhoto

6:46 PM

So far as I know we are the only two people who hang out here who are working on such a game...

That'd be bad if there were even more of us...

Good evening.

@PearsonArtPhoto i'm not really working on that game, i was just having fun

PearsonArtPhoto

Ahhh.

It is just too ambitious

PearsonArtPhoto

I'm trying to do both at the same time:-)

6:50 PM

plus, there is another game I need to finish first.

PearsonArtPhoto

Yeah, I know what you mean... The further I get into it, the more ambitious I realize it is, not to mention the trying to get such a game out there.

I'm intending on releasing it all open sourced along with tutorial

PearsonArtPhoto

I have no idea what I'll end up doing with my stuff.

So far I've released 4 files of it as open sourced, but I'm not sure what I'll do about the rest...

I already wrote a draft of the 2d world rendering

user image

@Jon block game?

PearsonArtPhoto

6:55 PM

The truth is that I've studied enough about procedural generation now between your blog articles, a Udemy class, and some really good YouTube videos that I just need to sit down and do it.

that is the next game, @Almo yeah

good choice

:)

yeah :)

Got you some nice looking tool, Windy

It is able to convert textures from a design resolution to 1080p ratio.

why would I need that?

6:58 PM

Also it is able to convert textures to TMX map files.

Quick question: How do I get a point that's "above" a GameObject?

@Garan you could set a child GameObject where you want the point to be, and check the transform position

Or , calculate it based on the transform position and scale

PearsonArtPhoto

What do you mean by above?

2-D or 3-D, UI or in game?

We achieved compression of >2 gigabytes textures to around 1.5 megabytes with TMX compression and indexing.

@VictorLopez what is the usage ?

What can I do with a uncompressed texture?

7:00 PM

@Jon compile, run, choose a texture, choose the output, for resize, for tmx just input a png and output a tmx map file.

@Jon How about if I want a point along a line defined by two Vector3s?

I'll upload the sample so that you can see what you can do with a png texture.

cool

Yeah, I'm not a designer, so I'm not quite sure how useful this is

What's the best way to increase the size of an image without data loss

@Garan a line defined by two Vector3s?

you mean, pointA, pointB?

7:03 PM

@hasherr depends on the image and how it's encoded

Agh

the usual answer to any "best way to..." question.

PearsonArtPhoto

@Garan Maybe a quick image of what you want would be helpful?

(PointB - PointA).Normalize() * distance

This guy made my logo but he sent me the smallest possible images

7:03 PM

Like if it's an SVG, making it bigger is no trouble at all

PearsonArtPhoto

@Almo "It Depends" is probably the best answer to almost any question.

I'm having a hard time using it on a mobile screen because phones are so pixel dense

Not if the question is specified well-enough.

"What's the best way to enlarge an SVG?" Answer: "Just scale it, since it's vector, there's no problem"

@hasherr you can't fix it if it's already rasterized.

it will look shitty

you need better resolution from the artist

PearsonArtPhoto

I suppose there are a few cases where it isn't the case...

user image

7:05 PM

Lots of questions have definitive answers

Fuck.

We addressed that, the artist draws a sketch, resizes and then re-works the hd image.

it's the whole reason for SE sites requiring well-specified questions

PearsonArtPhoto

It depends isn't always the best answer, but it is almost always an answer.

But okay, I get your point.

write it 100 times on a piece of paper

7:07 PM

if the question itself specifies enough, then "it depends" becomes less likely an answer because they already told us the stuff it depends on.

hasherr's question was pretty vague.

which is ok here in chat

we can ask for clarifications

you know it

:)

PearsonArtPhoto

Often if the question is so defined there is only one right answer, then the answer should be obvious.

"should"

:D

PearsonArtPhoto

There's also a reason why more than one answer is not only allowed, but encouraged on SE.

7:10 PM

Rick and Morty - M. Night Shaym-aliens! - Jerry's Story

@PearsonArtPhoto yup

@Jon Neat, thanks.

(I really should have thought of that on my own)

No problem

Samples are here

user image

7:15 PM

@Jon 81920 x 10240

yeah i can't even open it lol

i still do not understand why I would need a texture that big?

1080p platformers. Map files. The TMX map file is only 1.35 megabytes and the other 4 textures are barely 257 kilobytes. You can even reduce more the 257 kilobytes with pvr.

ah, i see

So if your device does not have enough video memory cough 3ds cough you will need to think in several compression formats. Techniques.

cool

7:27 PM

Oculus Connect 2: Live Coding Session with John Carmack

closed source, boooooo

7:39 PM

It was lame that (probably by contract) Manning had to say in the postgame interview that he was going to go drink some Bud. I know advertisers are big money in that business, but I thought that was going a little too far.

heh... dude -- if you play professional sports, you are owned

You are literally an investment to some very rich people

user92578

@AidanMueller Oh yeah, I just realized that I had left a hard coded resource path there. That's probably the cause of that. So not really that broken I think

Only way to get around it, is to NOT play professionally.

I just felt that having to say that when he's not on ad time was odd. I can see the answer "all time is ad time" at that level, but it still bugs me. :)

When I'm a pro LoL player, I'll ahve to say I'm using Logitech mice, I suppose.

He was on TV during superbowl.. THAT WAS AD TIME

7:43 PM

:D

probably a million rednecks got shitfaced on budweiser after that

WOOOOOOO, IMMA DRINK LOTS A BEER TOOOOO

theguardian.com/technology/2016/feb/08/…

I did this on my phone -- on the last OS update (android) -- they forced facebook on me

So I can disable it -- but it still takes 120MB of my phone unless I root it

@Jon Wait, really? Damn.

That's some evil stuff there.

It continually checks up on you

same with the messenger app

I remember the first time the app told me someone was nearby.

Since I disabled facebook+messenger -- my phone's battery last longer and it is faster overall

user4704

7:46 PM

Facebook alleged engineering culture does not lead to battery-optimal scenarios.

My thought was "Well, that's neat... and really, REALLY creepy."

yeah, it works on a pull system

so when you get notification of a new text -- it is not facebook sending it to you -- it is your app requesting it

This is interesting: gamefromscratch.com/post/2013/08/01/…

That seems... good for relieving server load, but TERRIBLE for the client.

@Jon woa shit

I have FB on my phone, but if I didn't want it, I'd be pretty pissed off if I were required to have it.

that's wrong man

I thought it was pretty common knowledge that facebook wasn't using push for everything.

7:51 PM

Facebook uses php.

crazy fuckers

2

That moment when I click on something in the game I'm working (that's supposed to move the camera!) and the camera goes off in a completely unexpected direction...

Yeah, HTC now has a contract to force FB on their phones now I guess.

No fucken reason for it... and if you ask me, it is very sketchy

@Almo That there is a crime.

PHP is just bad.

PHP is fine

^

7:52 PM

@garan you read this? eev.ee/blog/2012/04/09/php-a-fractal-of-bad-design

it's really funny

first of all, it runs natively on linux

And you can get linux servers for a heck of a lot cheaper than windows servers

well.. natively... granted you install PHP on your server

php is bad. but it can be used with care. like many tools with issues, Javascript included.

You can't beat free

(I used php for my webserver, no complaints)

@Almo Probably, though it would have been around 2.5 years ago when I actually used it.

7:53 PM

There are better free things than php

@Jon Perl also runs natively on Linux. Your point?

PHP7 is doing quite a bit of work to get rid of some of the legacy concerns - and facebook has been doing a lot of nice work for virutuliziation and compilation of php

Point is, it is cheaper than running asp.net

And what other alternatives do you really have?

javascript solutions

Swift may be pretty interesting as a php replacement eventually.

JavaScript has actually proven to be pretty effective at backends, it turns out.

7:56 PM

does it scale ?

Just spent the most time hunting down javascript memory leaks. Super fun times.

@Jon Ah. Good point. Not sure.

Personally, I like to leave my javascript client side :)

I've heard good things about Ada web server, if I ever end up on a government job I'll definitely check it out.

lol

7:57 PM

lol

Alexandre Vaillancourt

Would this be off topic?

6

Q: Parsing .sc2replay files

How do I parse StarCraft 2 replay files (.sc2replay)? Is there an API? I know of Sc2gears, but it doesn't quite fulfil my needs.

file-format starcraft-2 replays

Doesn't seem like development, so I'd say yeah.

2011

By the way, I'm quite liking the integration Unity now has with Visual Studio.

It has had it for a while, via way of plugin

7:59 PM

I've only just gotten back to it after a hiatus of around a year.

(I was also really lazy at updating Visual)

user image

Alexandre Vaillancourt

Voted to close it.

should we be closing old questions like that?

I think the information is clearly valuable to some peo0ple... i wouldn't want this to be deleted

If it could be moved

Alexandre Vaillancourt

Closing a question does not delete it. It's just that it will no longer be able to receive answers.

ah ok

carry on then

Alexandre Vaillancourt

8:03 PM

The information will still be there, users will still be able to vote and comment... it's just that it's not game development per se, IMHO.

Oops. I just realized the VERY important lesson of remembering that child transforms don't play well with world space.

"I challenge you to design and implement a new language in 2 weeks and have it come out as well as Javascript." - Douglas Crockford

2

Oh my god I just spent hours on a bug that turned out to be incrementing i in an inner loop where I should be incrementing j.

This, this is why when it counts I make the interval actually something. i < userInterval

sometimes, a bug will drive you mad

8:14 PM

@Lokkij I used to do that all the time when I was working with 2d maps. That's why I switched to row and column for variable names.

C also has the worst error messages. I was actually running it in valgrind, which made it seem like I had some kind of memory management problem.

I'm pretty sure I would've caught it much more quickly in most other languages.

PearsonArtPhoto

@Lokkij I'm pretty sure I've done almost the exact same thing...

Actually, it was x instead of y, but yeah, same thing.

user4704

This is why I stopped naming things i and j.

PearsonArtPhoto

I often use i still, but never for a 2d matrix.

eye and jay

2

8:20 PM

I couldn't think of a better name; I basically have to arrays of sentences that need to be checked against eachother

I'm also surprised our professor constantly uses unnecessary abbreviations for variables in the slides -- li rather than list, that sort of thing

user4704

For slides and presentations, wrapping is often really ugly, so that's common.

Hmm fair enough

user4704

Often you need a real big text size, and 16 character lines are hard :D

I was once paired up with this idiot in a computer class in university

Had to create a powerpoint presentation on any topic -- he wanted to do it on wrestling

Man it was really bad.

0

Q: How do I build a 3D array result set from a compute shader in unity?

I took this right down to the absolute most basic scenario but for some reason I can't get anything back from the GPU when this completes, could someone explain what I am doing wrong ... Here's my CPU code: using (var debugBuffer = new ComputeBuffer(27, sizeof(int))) { var kernel = compute....

unity c# hlsl gpgpu

did i do something daft wrong here?

wierd that my voxel gen works but this (used to be my mesh gen) ... is rediculous

8:25 PM

@Jon ohhhh myyyy

[takei intensifies]

I wish I had it

i havea a directory with shit from university

holy shit i think i might have it

Wait, was it TV wrestling or high school/college wrestling?

'Cause I wrestled in high school. That sport is actually really complex and if you can explain the complexity well it could be really interesting.

no.. WWF wrestling

Yeah, I don't seem to have it

Oh. That's disappointing.

user image

I made a power supply

user image

programmable timer

8:34 PM

oh man, guys

for those who don't know, I perform in a Rocky Horror shadowcast

literally a bomb mechanism nowadays

if someone made this, probably be kicked out of school

one of the original background actors just found the Facebook event page for our latest show, and posted that he'd like to come see us perform. We're in Wisconsin. He's in Slough, UK.

#nerdingout

@Jon At least you'll get to meet the president before moving to Qatar!

lol

I still have all the parts for it here.. i could reassemble it

Qatar doesn't sound so bad

8:37 PM

but nowadays, it is easier to get a raspPi

GDP per capita is around $93k USD

connect a couple pinouts

program via software

plus I heard Doha is quite the pretty city

only flag in the world with purple on it

2

Way too hot.

@ShotgunNinja The weather is terrible.

8:39 PM

@Almo you mean only national flag

yeah

There are flags with purple on them at every gay pride event I've ever gone to

#millenialsexualawareness

anywho, I live in Wisconsin. Blazing summers, freezing winters, I've dealt with extremes before.

yeah wisconsin weather sucks

whoa

i found an article I wrote in 2003

:D

8:42 PM

Should I congratulate you or offer condolences?

drive.google.com/file/d/0B8VtNmWS8-_VWXJlc05yUFF1VEE/…

don't judge

was actually 2002

it is pretty bad, lol

Glad to say I've come a long way since then.

drive.google.com/file/d/0B8VtNmWS8-_VeW9SLV9OTXZDLTQ/…

@Jon Featured right now is by Lars Doucet. I don't see yours.

it moved down the list since then lol

i was up there for like 3-4 hours

getting a lot of traffic on my site

What is it called.

bunch of new twitter friends

gamasutra.com/blogs/JonGallant/20160205/264590/…

8:56 PM

?

Kewel.

on the main page, it is called "Techniques for procedurally generating.."

they ahve been taking care of links and stuff for me

which i am pretty sure they don't typically do

@Jon Does that map wrap?

yeah

Because I was actually wondering how to generate tileable noise.

How do you do that?

its on github

but here

it is all explained

8:59 PM

Yay! The tiny bit of work I managed to do tonight worked (with a corner case that's not too important right now but will need to be fixed at some point)!

jgallant.com/…

thx

start from the top actually

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Feb '168

Game Development

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