Game Development

DH.

04:00

I didn't even knew APNG was a thing

All I know is that GIF is not even that much used, people are using GIFV and MP4 instead

Stephane Hockenhull

gifv is the same as gif.
it's just that ppl change the extension to tell that it's not a single-frame gif.

wait, nevermind

gifv is mp4

dot_Sp0T

12:39

Hey you gamedev people, if you have a few seconds time: What OpenGL versions do you code against, and why?

user92578

12:55

weekends are quiet, you might have better luck with answers during the week

dot_Sp0T

13:16

true that, but it's come up now and I thought it couldn't hurt putting out a query

user92578

yeah that's all right
I'm actually quite curious of the answer myself too as I've kinda been planning to swap my rendering to pure OpenGL

dot_Sp0T

What are you using as of now?

user92578

SDL2's built-in renderer.

dot_Sp0T

aaah, great (or not, never used SDL2)

user92578

It uses DX on Windows and OpenGL on other platforms but both backends use some ancient version of the APIs

dot_Sp0T

13:17

I guess the biggest issue is still that MacOS is lagging behind terribly on OpenGL :/

doppelgreener

i wonder what the state of vulkan support is in computers nowadays since AMD and NVIDIA came out with an API for it last year

user92578

My hunch is that Vulkan isn't supported as widely as one would want it to be

dot_Sp0T

@doppelgreener you could do some checking with the Steam Hardware Survey; Though you'd need to do the additional work of looking up the capabilities of each graphics card

doppelgreener

@dot_Sp0T oh yeah :O

dot_Sp0T

So about 75%+ of the GPUs in the hardware survey are capable of DX12 - which means they should be able to run opengl 4.3+

But I couldn't talk about Vulkan :/

dot_Sp0T

13:50

Also here's some data on macs: support.apple.com/en-us/HT202823 - TL;DR they currently go up to at-most 4.1 and most common is still somewhere around 3.3

PearsonArtPhoto

14:21

Even though I implemented it ages ago, I still use jgallant's blog article to help me with various this in the procedural generation.

@AlexandreVaillancourt Game Development Rubber Duck?

PearsonArtPhoto

14:36

Now adding Donkeys, Cows, Horses, and Llamas.

doppelgreener

excellent

PearsonArtPhoto

I think I will have the livestock more or less figured out (Except for transportation) after today.

This is starting to get ugly...

I should probably set up more of an inheritance structure for my goods.

For instance, all domesticated plants should grow a bit better if you have horses or donkeys. I don't have a good way to do that now, aside from adding in a few rows to each plant.

Bálint

14:53

@dot_Sp0T I usually code against OpenGL 3.0 or 4.0, depending on what I need, but I do use OpenGL 2.0 for android and have used it for WebGL too, before WebGL 2 came around

dot_Sp0T

@PearsonArtPhoto are you creating a farming sim?

PearsonArtPhoto

Sea trading game.

But there's a fairly sophisticated algorithm to determine what goods are produced at what locations.

Curio

hi

dot_Sp0T

@PearsonArtPhoto sweet

PearsonArtPhoto

When I can get it all to work, it should be fun.

I'm hoping to have something like 100 goods available, with the ability to add more being fairly easy.

dot_Sp0T

14:56

@PearsonArtPhoto you can do it

user92578

100 sounds substantial enough that you're going to need a good system for adding them anyways

dot_Sp0T

I think an ECS could really shine for simulating the interdependency of goods

PearsonArtPhoto

Right now everything I have is an XML file.

user92578

@Curio oh hey

PearsonArtPhoto

The goods XML file is around 800 lines at the moment.

Curio

14:58

this night I forgot how sleeping

dot_Sp0T

I guess you use the XML to define properties?

Curio

It was terrible :'(

PearsonArtPhoto

What I really ought to do, and maybe that's what I'll work on next, is putting together a graphical tool to make and modify goods more easily.

Yeah.

user92578

WinForms FTW

PearsonArtPhoto

dot_Sp0T

14:59

I guess at that point i would split it up to one file per good

PearsonArtPhoto

That's an example of what my files look like.

What might be easier is to split it up by type of good.

user92578

Oh that's neat

PearsonArtPhoto

Eventually I want to set it up so it could be extended fairly easily.

dot_Sp0T

This is very interesting

user92578

A system that goes "look for all XML files in this folder and consider them as good definition files" would also provide modding support, kinda

PearsonArtPhoto

15:00

Yeah. I don't think I'm ever going to do full blown modding with this game, but I do want to support at least light modding.

dot_Sp0T

@Tyyppi_77 XML allows you to define a namespace for each file, so you don't have to assume but can actually check the namespace to know if it's a good file or not :D

PearsonArtPhoto

Hmmm...

user92578

Well that can pretty much done with anything

PearsonArtPhoto

Okay, I think I'm convinced now. I'm going to work on tools to help me make this easier. Those tools are going to be available for anyone to do stuff with.

user92578

like checking for the root element or a property in the root element

PearsonArtPhoto

15:02

If I can figure out how to do a half-way decent GUI, I'll write it in C#, otherwise I'll do it in either Java or Python.

user92578

I did this with file extensions lol, look for all *.lvl files in this folder or whatever

PearsonArtPhoto

Or maybe a web app. Hmmm...

user92578

WinForms is super easy

dot_Sp0T

I just wanted to propose writing a simple HTML + Javascript thing

user92578

UI in Python is way more trouble than WinForms

PearsonArtPhoto

15:02

Hmmm. I might as well do it then for the web.

I'll release the tool on my website, and let people go crazy.

user92578

I don't know about file IO in Javascript at all so I can't comment on that

PearsonArtPhoto

I won't actually do the IO most likely.

Just let the user copy/ paste.

user92578

Oh... okay then

dot_Sp0T

@Tyyppi_77 you can request the renderer/platform to load/save something which will then produce native popups/whatever the browser does

doppelgreener

javascript file IO is done via the browser, yeah.

you ask the browser to give you a file and the browser handles getting it from the user. it won't be able to do free read/write of a folder.

PearsonArtPhoto

15:04

Well, I'll think on it some... But in any case, I'm going to submit what I have, and then spend my time writing a tool to make stuff.

And while I'm at it, I want to add a manual map generation mode.

dot_Sp0T

If you ever feel like moving away from a browser you could just use GTK in your application for rendering, or any other renderer

PearsonArtPhoto

C# was written by Microsoft, and I'm using Visual Studios. It should be easy to make a GUI there...

Bah, I'll figure it out.

user92578

You could always just wrap the web app in Electron or something

user92578

Back in my prototype version I used XML to definite entity data, mainly for enemies
So I wrote a tool to edit the XML... ended up dropping the XML stuff for entities though, but writing the tool was fun

PearsonArtPhoto

A part of me is worried because I've never really done web app generation.

user92578

15:07

user92578

That's basically the best I could get WinForms to look lol

doppelgreener

Nowadays there is also WPF 🔗 as a more recent alternative to Winforms, but it also has its limitations.

user92578

Is there a designer for WPF?

doppelgreener

Don't recall. When I was using it I wrote my applications in XAML manually.

user92578

ah

doppelgreener

15:15

You can also write a HTML-based application. Discord is one of them.

user92578

Yeah I've actually been meaning to try that out

PearsonArtPhoto

So many options...

user92578

Everyone's just complaining about Electron's RAM usage though

Bálint

@PearsonArtPhoto What do you use to make the game BTW?

PearsonArtPhoto

Unity.

Bálint

15:16

@Tyyppi_77 Well, it's basically a browser

PearsonArtPhoto

I don't want to have this tool be Unity based, because Unity is a bit of a pig when it comes to file size and resources.

doppelgreener

HTML-based would be my personal preference, since Winforms looks bad (unless you want your app looking exactly how Winforms is intended to look), WPF has some major weaknesses, and I know HTML/CSS/JS so well I could do some amazing UIs easy peasy in a HTML app.

PearsonArtPhoto

And the UI isn't really great for this.

Bálint

I just write my tools in JS and HTML

PearsonArtPhoto

I think what I'm going to do for now is to design it on paper for a bit.

Bálint

15:17

I don't use electron, it's just a web app

PearsonArtPhoto

Before I figure out what technology to use, I want to understand how it should look and act.

doppelgreener

@Tyyppi_77 This looks super nice, but is definitely pushing the limits of how nice it's possible to make WinForms look.

PearsonArtPhoto

Then I'll figure out what technology will get me there.

I might even do a poll in my weekly blog post.

Bálint

I also began using XML as data storage, but for menus

user92578

Yeah that's pretty much WinForms limit as there's already a ton of style-compromises made there, always some border or text color or something messing things up.

dot_Sp0T

15:19

I guess I'm odd writing my tools in my own engine - but then I don't really have any set in time goals

Bálint

I thought about using HTML, but it's not that flexible by default, it requires a lot of programming and is a bit of an overkill for what I want it for

dot_Sp0T

@Bálint care to elaborate on not that flexible? I mean html is basically the lego of gui design

Bálint

It doesn't have variables

doppelgreener

Nowadays HTML+CSS has Grid layout 🔗 and Flexbox layout 🔗 so we can do amazing things with them that wouldn't have been possible or easy just a year or two ago.

Bálint

without CSS

user92578

15:21

@dot_Sp0T What kind of tools? I've myself written a level editor inside the game "engine" but no other tools really.

dot_Sp0T

Well clean HTML is pure presentation, so I guess you're sort-of right. You'd use ECMA6 for logic

Bálint

Again, overkill

doppelgreener

If I want variables for HTML or CSS development I'm using stuff like Handlebars or SASS in the precompilation code

dot_Sp0T

@Tyyppi_77 so far mostly debug things; as I enjoy that sort of thing. I can, although still not perfectly, prototype a game all inside my engine (although it's only commandline interaction yet..)

Bálint

I don't need animation, I don't need any programming functionality, I only need variable support, so I use a custom XML-based fromat

doppelgreener

15:23

Discord users: press CTRL+SHIFT+I in your discord window :D

user92578

LOL

dot_Sp0T

I guess I am not sure what you need the variables for :/

user92578

wow

Bálint

width and height

default values

Etc.

doppelgreener

width and height don't go in HTML since that's layout information

dot_Sp0T

15:24

width and height in html are usually with css and in relative numbers

default values hints to using forms, forms allow default values

Bálint

I mean menu width and menu height

dot_Sp0T

I mean html really is only presentation, the code processing it should have the logic, not the html - but that's just me and my archaic views

Bálint

Wait, I'll post an example layout

<menu>
  <variables>
    <variable name="margin" value="[width] / 20" />
  </variables>
  <content title="Test Menu" scrollable="true">
    <container x="[margin]" y="[margin]" width="[width] / 2 - 2 * [margin]" height="[height] / 2 - 2 * [margin]">
      <input label="Test label" width="max" height="[text-height] * 2" name="test-input"/>
      <checkbox label="Test label" name="test-checkbox" default="on"/>
      <group name="test-group" default="0">
        <checkbox id="0" label="0: " />
        <checkbox id="1" label="1: " />

Also, expressions

user92578

Yeah that'd be CSS' job then (or SASS)

Bálint

Yeah, but a complete CSS and HTML engine is huge

user92578

15:27

Yeah absolutely, no point in using HTML if you don't have a web renderer ready in the engine

dot_Sp0T

Yeah that's sort of a given

PearsonArtPhoto

Wow, what did I start...

doppelgreener

a marvellous conversation about GUI development

dot_Sp0T

A revolution

PearsonArtPhoto

A revoluation about GUI development?

doppelgreener

15:29

viva la winforms

dot_Sp0T

aiaiaiaiai

Bálint

I'm currently trying to parse this

Specifically at storing layout information

dot_Sp0T

Parsing HTML is... hard

Charanor

16:00

Rubber ducking? :o

@Bálint Try using regex with jQuery. Solves all HTML problems.

dot_Sp0T

@Charanor did you just propose parsing HTML with regex?

Charanor

@dot_Sp0T and jQuery (required)

dot_Sp0T

@Charanor my Machine- & Formal Langauge Theory prof would rip you apart for that^^

Charanor

@dot_Sp0T (sarcasm ;))

dot_Sp0T

@Charanor I'm sorry but he drilled it into us :D

Charanor

16:06

jQuery solves everything

dot_Sp0T

@Charanor please tell me that is a fake question?

Charanor

Nope 100% real if I recall

dot_Sp0T

how does this garner 22 upvotes?

Charanor

Lots of other questions have the same answer

I've seen one with over 100

dot_Sp0T

just why

Charanor

16:07

Also one answer that offered 2 solutions, one of which was jQuery and it had like 400 upvotes iirc

dot_Sp0T

I mean it's almost like: What direction do I have to turn a screwdriver to remove a screw? - You should use a Phillips Screwdriver

Charanor

No, it's like What direction do I have to turn a screwdriver to remove a screw? - You should use jQuery, it's great and does all things

2

dot_Sp0T

You win this round

Bálint

4426

A: RegEx match open tags except XHTML self-contained tags

You can't parse [X]HTML with regex. Because HTML can't be parsed by regex. Regex is not a tool that can be used to correctly parse HTML. As I have answered in HTML-and-regex questions here so many times before, the use of regex will not allow you to consume HTML. Regular expressions are a tool th...

doppelgreener

185

A: When is "use jQuery" not a valid answer to a JavaScript question?

Pretty much never. For convenience, here's the image the above link points to: Given the URL and text in the image, I suspect this image was put together by our old regexinating pal bobince!

Charanor

16:12

@Bálint You found it! :D

doppelgreener

it's a parody image, not real :)

Charanor

Crap

dot_Sp0T

@Bálint I'm always happy for anybody relinking this

PearsonArtPhoto

16:46

I think this is where the way that I developed my game might come in handy. I have an object that I can store everything in for each good prototype, I can use the exact same model to store them in my editor.

Which means I'm going to do something C# based.

So I guess that means Winforms or WPF?

Almo

18:43

@Charanor or better needsmorejquery.com

Bálint

19:01

Is it worth it to upgrade to VS 2017 from VS 2015?

dot_Sp0T

I'm happy with the free community version so far

Bálint

19:19

I'm speaking about the community version

Strelok

19:58

Hi

Anyone here?

Charanor

Í am

Strelok

Charanor, I have a question

about a game

I'm development a mini-game FPS

I have a problem with move mouse

if I want move Y axe -> rigidBody->setAngularVelocity(Vector3(0, 0, mRot.y * deltaT * -3.0)); (is perfect)

for X: rigidBody->setAngularVelocity(Vector3(0,mRot.x * deltaT * -3.0,0)); (is perfect)

But I can use one at the same time, if I use those 2 lines, the movement generated is very rare.

Charanor

Probably something like

Vector3 vector = Vector3();
if(moveY)
vector.z = mRot.y * deltaT * -3.0;
if(moveX)
vector.y = mRot.x * deltaT * -3.0;
rigidBody->setAngularVelocity(vector);

Then you can move in both directions at the same time.

Strelok

20:14

I'll try to use your code. What I want is to move the mouse in X and Y (like all FPS games)

Bálint

@Strelok Angular velocity is probably not what you want

You can't really predict where it will end and the camera will feel floaty

Strelok

@Charanor moveX and moveY = mRot.x != 0 ?

@Bálint then.. What can I use?

Bálint

Use something like rigidbody.rotation

docs.unity3d.com/ScriptReference/Rigidbody-rotation.html

Charanor

@Strelok Oh you're trying to rotate your character in an FPS? You should probably just straight up set rotation of your character in that case otherwise the aim will feel unresponsive

Bálint

Or set the camera's rotation

Charanor

20:17

@Bálint beat me to it haha

Strelok

I'm using Ogre3d and Bullet

Bálint

Ohh, ogre

That wasn't clear

Strelok

I can't use camera.. because the weapon no moving with camera

I think that .. I need to use physicals

(sory, I'm not speak good english)

sorry*

Bálint

0

Q: How to set the object's world position in bullet?

In my Ogre3d application I am first changing the parent of a node like this: // save object "Cube" into node*; then ... Vector3 absPos(node->_getDerivedPosition()); Quaternion absOrient(node->_getDerivedOrientation()); node->getParent()->removeChild(node); m_pSceneMgr->getRootSceneNode()->getChi...

Strelok

ooohh interesing

but he use the wrapper btOgre

I'm using the wrapper OgreBullet

Bálint

20:26

No, he just recommends it

Strelok

I will read and returned in 30 minutes.

PearsonArtPhoto

20:41

I think I will use Windows Form. It seems to be a good enough combination of things that I can make it work for my purpose.

Will be strange, but good, to do a pure C# program.

Bálint

Someone said I should look into Rust, because it's like C++ without segfaults, which sounds awesome

Strelok

21:01

@Bálint I don't understand

this page

user92578

21:15

What don't you understand?

Strelok

21:32

I need rotate my rigidBody in X and Y

Try it in many ways, but I can not rotate both at the same time.

//FORMA 1
    /*
    rigidBody->setAngularVelocity(Vector3(0,mRot.x * deltaT * -3.0,0));
    rigidBody->setAngularVelocity(Vector3(0, 0, mRot.y * deltaT * -3.0)); */

    // FORMA 2
    /*
    Vector3 vector = Vector3(0,0,0);
    if(mRot.y != 0)
    vector.z = mRot.y * deltaT * -3.0;
    if(mRot.x != 0)
    vector.y = mRot.x * deltaT * -3.0;

    rigidBody->setAngularVelocity(vector); */

    //FORMA 3
    /*
    btTransform btT;
    rigidBody->getBulletRigidBody()->getMotionState()->getWorldTransform(btT);

doppelgreener

use the "fixed font" button

Strelok

where?

doppelgreener

when you're editing or writing out a multiline message, it'll show up beside send & upload

Strelok

YES

yes *

//FORMA 1
    /*
    rigidBody->setAngularVelocity(Vector3(0,mRot.x * deltaT * -3.0,0));
    rigidBody->setAngularVelocity(Vector3(0, 0, mRot.y * deltaT * -3.0)); */

    // FORMA 2
    /*
    Vector3 vector = Vector3(0,0,0);
    if(mRot.y != 0)
    vector.z = mRot.y * deltaT * -3.0;
    if(mRot.x != 0)
    vector.y = mRot.x * deltaT * -3.0;

    rigidBody->setAngularVelocity(vector); */

    //FORMA 3
    /*
    btTransform btT;
    rigidBody->getBulletRigidBody()->getMotionState()->getWorldTransform(btT);

//FORMA 1
/*
rigidBody->setAngularVelocity(Vector3(0,mRot.x * deltaT * -3.0,0));
rigidBody->setAngularVelocity(Vector3(0, 0, mRot.y * deltaT * -3.0)); */

// FORMA 2
/*
Vector3 vector = Vector3(0,0,0);
if(mRot.y != 0)
vector.z = mRot.y * deltaT * -3.0;
if(mRot.x != 0)
vector.y = mRot.x * deltaT * -3.0;

rigidBody->setAngularVelocity(vector); */

//FORMA 3
/*
btTransform btT;
rigidBody->getBulletRigidBody()->getMotionState()->getWorldTransform(btT);
//------------------NEW ROTATION-------------------

is correct now?

Typhon

21:59

hi

Almo

22:17

what up typhon

Typhon

uuuh

working on stuff

Almo

:)

I think I might be done with updates to my game, and will send it to apple/google sometime next week after I test it a bit

make sure I didn't break anything

then i start the Steam integration for the osx/linux/windows version i'm going to make

Typhon

ok

@Almo sounds complicated

Bálint

dafont.com/barbarian.font

This font....

Almo

22:32

@Typhon shouldn't be too bad

steam api is easy to work with

Typhon

@Almo fair enough. I use Game Maker. Is very easier.

Almo

you don't make games with steam though. game maker games can use steam api as well

the game is made with Unity

I have used GameMaker, I liked it

Typhon

game maker cannot run on apple

@Almo steam runs with apple. so game maker not run with steam.

Almo

game maker can totally make OSX games

Bálint

@Typhon docs.yoyogames.com/source/dadiospice/002_reference/steam%20api/…

Almo

22:43

and it totally runs with steam

store.steampowered.com/app/94400

Typhon

that's not game maker

Almo

that game is made with GameMaker, is on OSX, and runs with Steam

Nidhogg (video game)

Nidhogg is a side-scrolling two-player fighting video game developed and published by Messhof. Players duel with swords in a pixelated environment. The game was commissioned for the New York University Game Center's annual multiplayer show, and was revised and demoed at private events over the next four years before its final release. It won Indiecade 2013's Game Design award and the 2011 Independent Games Festival's Nuovo award. It was released for Microsoft Windows on January 13, 2014, and later ported to OS X, PlayStation 4, and PlayStation Vita. Critics praised the feel of the gameplay and...

Bálint

The link is about game maker

yoyogames made gamemaker

Almo

Inspired by the 1984 fighting game Great Swordsman,[9] the game was made by indie developer Mark Essen over the course of four years, using GameMaker: Studio.

Typhon

that isnt game maker

Bálint

22:45

Which one?

Typhon

that's an external library someone made

gamemaker.info/en/manual

please

there's the official docs. Where is steam support built in?

Bálint

Typhon

that is great that someone got windows games on osx

but it isn't be default

what?

Bálint

docs.yoyogames.com

Typhon

dont tell me yoyo actually made a new version...

Bálint

22:46

YOYOGAMES MADE GAME MAKER

Typhon

I KNOW

that's not game maker

that's "studio"

different program altogether

ugh

(piece of shit, too)

Almo

@Typhon what?

default?

Typhon

game maker only makes windows games

Almo

IT DOES NOT

Typhon

and apparently they run on linux as well by a complete coincedence

Almo

22:49

it makes TONS of different platforms

Windows, Mac, Ubuntu HTML5 Microsoft UWP Android, iOS PS4 Xbox One

from their docs

Typhon

gamemaker.info/en/manual

that's not the game maker docs

Almo

If you have the trial version, that version only makes windows.

Typhon

that's "studio"

they're different programs

they rebooted their whole line a few years back and wound up with a piece of shit

I honestly forgot that thing existed

Almo

Studio is what people call GameMaker now, so if you're using an outdated version then you're going to be talking at cross-purposes with anyone about this subject.

Typhon

fair enough

even their own community rejects studio

a lot of people got pissed cause their free version would act like it was a pirated copy and just erase entire perojects

and also if you used it for more than 10 or so hours straight the save system would randomly corrupt

oh and they made all of the free stuff basically worthless so unless you cough up $200 studio is useless

(slight exaggeration)

Free Internet Points

23:59

1

Q: How can I use vibration of an iPhone for my HTML / Javascript game?

I'm building a web game. I'm trying to use the iPhone's vibration functionality. How would I go about doing this seeing I want to package and deploy this game to the App Store. Is there a secured way to do this?

javascript html5 iphone

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