Game Development - 2016-06-09 (page 1 of 4)

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user4704

12:19 AM

I'm usually not a fan of this sort of Boost.Spirit template hackery, but github.com/ColinH/PEGTL is pretty neat.

user4704

Much nicer for doing syntax highlighting than the collection of disgusting regex I was using.

1:07 AM

Powdered Donutz Cereal (Commercial, 1982)

They manage to say "Donutz" 13 times in 30 seconds.

(I think it was 13... might have miscounted)

Chris McFarland

mmmmm, donuts

@Almo Too late D:

amazon.com/Logitech-Master-Wireless-Mouse-910-004337/dp/…

I got this one.. looked too nice to not buy :P

Hopefully it'll be here by June 13

1:49 AM

mmmmmmmmmmmm donuts would be great right now

@Jon This is so true

2:17 AM

quick question guys (i'll be offline by time u answer but I'll check the history) how long do u think it takes to learn how to use a engine proficiently?

How many weeks would it take to understand Unreal engine that you don't have to constantly look up everything but isn't a expert yet?

user4704

3.

user4704

(who cares if you have to look up stuff? it's huge, that's okay)

Chris McFarland

2:34 AM

^

@JoshPetrie Is it bad that I still sometimes get confused with operators?

Mainly Relational Operators.

user4704

Defined "confused."

I know how to use them but sometimes I forget their values and have to fix them.

user4704

What do you mean, forget their "values?"

A > B and A < B I'm fine with but sometimes I get the ordering of >= or <= wrong.

@JoshPetrie I forget which does what from time to time and need a refresher.

These: tutorialspoint.com/csharp/csharp_relational_operators.htm

user4704

2:40 AM

Um. You mean the precedence?

user4704

Do you mean you forget that the = means "or equal to?" I'm not sure what you're meaning here.

@JoshPetrie Precisely. Like I know what == means but sometimes I forget what >= or <= means and have to look at a cheat sheet. I'm getting better but occasionally I need a refresher.

user4704

That's pretty straightforward memorization. You'll learn it eventually.

Chris McFarland

>= is greater than or equal to
<= is less than or equal to

I also still occasionally have trouble using arguments and parameters.

A lot of this stuff comes with time I guess though.

Chris McFarland

2:44 AM

yeah it's learning the syntax

Man as much as I love Kendrick Lamar a lot of his songs are really hit and miss with me. I don't know about you guys but I've always liked different songs from different artists rather than albums.

5 hours later…

7:36 AM

@Almo yo man check this out: assetstore.unity3d.com/en/#!/content/12047 I think it exactly what you need to see Debug.Log() on android.

1 hour later…

8:39 AM

1 hour later...

9:27 AM

You are the Micheal Scott of gdse

@Jon imagine a gamedev company composed only from the people in here :D.

It wouldn't be long before I was crucified.

Kevin van der Velden

Nah, you can make some utilities

You're not allowed to touch the game until you learn a better language though

@KevinvanderVelden careful now you might get banned for 30 mins... like me that one time

William Mariager

@UriPopov I think someone tried that once. :P Well, at least a group from this place.

9:39 AM

@WilliamMariager did it work out ?

William Mariager

No

figured as much :D

ok my AI in the kids game plays the game tool well. What do? Implement another strategy called stupid or wht ?

Kevin van der Velden

Improve the AI to calculate sub-optimal choices and choose one of them

Making a perfect AI is typically easy, making a good AI is really fricking hard

so I'm making a Stupid Strategy. Any suggestion on when the AI should pick it ?

perhaps I'm overthinking it. It's a simple kids game so maybe the AI should just randombly pick the stupid strat from time to time.

Kevin van der Velden

Not enough information to give that an answer

9:50 AM

well I'm off to a investors meeting. wish me luck

Good Luck.

It really depends on your game

AI is very specific to what it is you are doing

1 hour later…

11:07 AM

wazzup

Alexandre Vaillancourt

Hello!

How are you?

Alexandre Vaillancourt

Good!

And you?

Me too, thanks

Alexandre Vaillancourt

From what country are you from?

11:15 AM

@AlexandreVaillancourt Israel

Sorry, couldn't resist

Alexandre Vaillancourt

:P

@AlexandreVaillancourt Ukraine

And you?

Is it possible to procedurally generate visual appealing textures for different materials? Just asking braindeadly, as textrues are the main problem for me, I can't even draw a fucking stickman that looks like a stickman

William Mariager

@NaCl Sure thing. Lemme find an example :)

SPARTAN Procedural Tile Generator

@WilliamMariager Hokey, thanks mate, so then I'll try to do that 'now'

William Mariager

11:27 AM

Tilemancer is another interesting tool.

Alexandre Vaillancourt

@JesusChrist Canada!

@AlexandreVaillancourt Do you work in some of the Canada game studios?

Alexandre Vaillancourt

@JesusChrist Nope! I've worked for one small studio before, but they burned me, so I no longer work as a game developer.

PearsonArtPhoto

I am being sued, in East Texas, for using Google

@AlexandreVaillancourt do you work as developer at all?

Alexandre Vaillancourt

11:34 AM

@JesusChrist I do!

@AlexandreVaillancourt what are you working on? Databases?

Alexandre Vaillancourt

I build simulators used to train new operators

What do they simulate?

Alexandre Vaillancourt

Mining trucks, forklift trucks, etc...

Boooring

11:39 AM

Well, I had to drive forklift trucks back in time while playing Shenmue

I write governmental program management software that deals with billions of dollars in grants

You wrote you mean?

We use floats for currency

I got NaN€

Jesus Christ...

11:40 AM

NaCl...

@Jon Tell me it isn't used now

I was kidding

Thanks God

Numerics

God?

Hope that team would never write a software for nuclear reactor...

11:52 AM

Nothing wrong with using floats for currency.

Especially in Java where you can be sure the data is not lost :)

@ShaunWild explain

Kevin van der Velden

@ShaunWild uhm

@ShaunWild what do you mean by that?

Kevin van der Velden

That's a decimal which is not a float

A decimal is a fixed point format

`float am = 5.4f;
System.out.println(am); //outputs 5.4, not data lost`

Kevin van der Velden

11:54 AM

You have no idea what you're talking about

pfff

@KevinvanderVelden +1

No, sorry.

@UriPopov you can do what I did for Fanarona on ACIII... invert the value function. So he prefers bad moves.

Kevin van der Velden

@ShaunWild float t = 0; for ( int i = 0; i < 1000; i++ ) { t += 0.001f; } System.out.println( t );

Try that

No.

Kevin van der Velden

11:56 AM

Why?

Because you just spend the last 2 minutes typing it and I'm sure you'd be very frustrated if I didn't.

Kevin van der Velden

Okay well it wasn't nice knowing you, bye o/

LOL

If you use floats for currency in any language you are doing it wrong and should be fired

I know. I was just winding Kevin up.

Currency is discrete so an integer is fine

William Mariager

12:00 PM

Who is using float for currency?!

Ohhh...

Whoever is using it should ask the US military if floats are a good idea for any precision task.

The Patriot Missile Failure

@UriPopov but the other answer shows Unity gave us the option finally.

1

A: Can I Debug.Log() on Android without all the callstack spam?

Yes, you can now. If you accept that stack traces also disappear from Debug.LogWarning() and Debug.LogError(). Just do this at startup: // We do not want stack traces for all log statements. (Exceptions logged // with Debug.LogException will still have stack traces though.): Application.stackTr...

would the military use floats for any kind of missile guidance system?

Read the article

Kevin van der Velden

@WilliamMariager aah right, they "fixed" that by just restarting the system every day or so

William Mariager

@KevinvanderVelden Yup

12:04 PM

that's quite cool

I had a missile in a game once that couldn't hit targets due to float rounding

~Bullshit Detector Alarm~

Kevin van der Velden

@DH. well it's shaun...

The tiny icon keeps moving

Guess it was BigDecimal anyways

I lied sorry.

You don't say Mr. Java

12:11 PM

Hey.

user image

Although late, still on-topic

Better late than later, that's the spirit NaCl

Man its hard to dumb myself down for some people

What if its easier to smart-er up people for you?

I explain how to manipulate noise data like it is super easy

12:16 PM

oh is this for your article?

I guess it might be more difficult to grasp for newcomers

Naw gdse question

@Jon Hey Jon, can I take a look at it?

6th newest one

I'm still a noob so I can tell if it easy or not to understand :P

On phone hard to link

12:17 PM

0

Q: Texture Mapping to procedurally generated geometry

I developed a soft that procedurally generate some surface from given points in 2d. Number of points and order keep same in all generated geometries. But I cant calculate texture coordinates automatically. How can I calculate texture coordinates for all type of generated geometries or can I gener...

opengl c++ directx algorithm vulkan

Kevin van der Velden

0

A: How can I apply Perlin noise to generating an asteroid from cubic voxels?

Here is how you can blend data of noise and gradient together, in 3D. This should provide you with asteroid style shapes. First, our container to store the Data: public class MapData { public float[,,] Data; public float Min { get; set; } public float Max { get; set; } public...

^ presumably

Yep Kevin got it

lol I was about to link that

@Jon wait how is this not clear?

I don't even use Unity and I understand what to do because of how clean the code is

lol I just noticed how GDSE is basically UnitySE

It is clear for me

Not so much for the op

rip op

12:20 PM

@Jon Try Vagisil, as shown in southpark, it makes you stupid

@NaCl But then u have to race in nascar

Lol

What if Jon wins and leaves us to become a professional racer?

No, @Jon is not poor enough to race in nascar

ooo u right

12:21 PM

He'd have to give me all his money

Dont worry, the steam summer sale is almost here

@TheMuffinCoder Why did he add tags for DirectX, Vulkan and OpenGl?

I think OP might not understand 3D very well at the core

Or noise generation

Gotta start somewhere

I like noise

Can someone explain Veronoi to me and how to use it

And what it's used for

12:29 PM

It is used for various things. It can be used for map generation

It is just a style of noise data

Alexandre Vaillancourt

@ShaunWild google.ca/search?q=voronoi

Lots of info on there!

@AlexandreVaillancourt Go away

It's actually not really noise

More like.... Random interconnected shapes

This is cool

paperjs.org/examples/voronoi

Alexandre Vaillancourt

Lol.

user92578

12:30 PM

@ShaunWild lmgtfy.com/?q=Voronoi

I'm not clicking on that

user92578

Hey @Jon just a reminder about that lighting stuff you wanted to show me

"A Voronoi diagram is a diagram that contains a set of points and a set of edges. The edges partition these points in such a way that, if you were to pick a random location in the diagram, and look at which set of edges you're inside, the location you chose is closest to the point inside those edges than any other point in the diagram. The edges in a voronoi diagram lie in the places where a location is equidistant to two or more points."
- http://www.upvector.com/?section=Tutorials&subsection=Intro%20to%20Procedural%20Textures

user92578

@ShaunWild I'm still waiting for your Java software renderer

Ah yeah. Well basically you set a Color value for each tile

Then you plot these colours onto a render target

Then you draw and blend this render target over top you scene stretched out

Each tile is 1 pixel in you shadow map

You need to clamp it at the right spot. And you need to be smart on how you set the colors

If you want gradients for example

user92578

12:35 PM

That sounds kinda smart, however I'm not sure how well SDL blends textures, but it might be interesting to try that. Sounds like a cool Friday project on a separate branch :)

user image

Shit pic but whatev

Shows you

user92578

Oh that's smoother than I thought

It's the way it is drawn I'll give you the blending information later

user92578

^ Sounds like I can't do that

SDL should be able to

user92578

12:39 PM

This is what I have: wiki.libsdl.org/SDL_BlendMode

Yeah additive I think

user92578

Oh, okay

Code is at home

user92578

I'm not allowed to dev today but I'll give this a shot first thing tomorrow

@Jon well if it's not an on accessible server wtf is your problem

fuckin stone age bs

code is at home grumble grumble

12:41 PM

Hahaha

Can connect to anything from here

"can't"?

Proxys are fucken insane

Can't

right thought so

:(

Yeah that is why I do gdse on phone

Kills productivity

ooooh

12:42 PM

Gotta switch all the time lol

user92578

But how the shadows so smooth?

Work. They don't get it.

Magic

The Color values are calculated based on the tile

user92578

Looks like I forgot my verb there. Oh well

If a tile is surrounded by tiles it will be darker. Gets lighter as you approach an edge

Then if you stretch it out it gets smoother

Make that 1 pixel fit a tile

user92578

Oh, stretching, hmm

12:45 PM

Efficient as you only plot 1 pixel per tile on your render target

fucking outlook

some emails are breaking it (like open the email, outlook freezes) so I right click to hit delete, and it opens it while I'm navigating the menu

user92578

Yeah it's a cool technique

user92578

Stretching might be hacky, but should work

these are emails from the jenkins build process

user92578

Currently I've set SDL to nearest neighbour (or none)

user92578

12:47 PM

So I'll need to swap that

Worth a shot I can give you code later to help

user92578

That would be great, thanks a lot. Definitely worth a shot

William Mariager

1:00 PM

@Tyyppi_77 Works nice with RGB as well. :)

user image

user92578

Oh man, stop teasing me!

Oh yeah

user92578

I can't wait for tomorrow...

Will was the original inspiration

William Mariager

I'm the most fair muse. <3

1:03 PM

You do it via shader though right?

What happened to you anyways will. Where are all your updates and shit?

William Mariager

The spreading effect yeah. The application is just like you said, with an additive layer.

Yeah I precalc the Color values at CPU

Then update when block removed/added

Update only the tiles that get "dirty"

William Mariager

Exactly.

@Jon Heh, I'm not very productive when in school apparently. I'm hoping to get something done during the summer, although I'm in the process of starting a project with a company, so that might take all my time anyway.

So life

William Mariager

I've come pretty damn far with my rogue-lite. I was planning on finishing it up during the summer. But it depends on the other project. Starting a career has to take priority.

1:08 PM

All this wasted time at school you know enough already just quit

Life advice by Jon

William Mariager

Hehe. You can always learn more. :P

Life advice by Billy

I vote for finishing school

CRITICAL ENHANCEMENT REQUEST

Not sure how a ER can be critical

Considering it is an enhancement and not a problem

Oliver Schöning

I tried creating a sort of collision detection that would make it possible to slide along walls (if you only hit on one axis) but at higher speeds it ends up stopping the player to early.. any suggestions? I couldnt find any simple collision detection for this lol.
https://dl.dropboxusercontent.com/u/53738503/buggy_collision_detection/index.html

for ( var i = 0, il = SOLIDS.length; i < il; i++ ) {
	if ( PLAYER.y + PLAYER.h > SOLIDS[ i ].y && PLAYER.y < SOLIDS[ i ].y + SOLIDS[ i ].h ) {
		if ( PLAYER.x + vx < SOLIDS[ i ].x + SOLIDS[ i ].w && PLAYER.x + vx + PLAYER.w > SOLIDS[ i ].x ) {
			vx = 0;
		}
	}
	if ( PLAYER.x < SOLIDS[ i ].x + SOLIDS[ i ].w && PLAYER.x + PLAYER.w > SOLIDS[ i ].x ) {
		if (  PLAYER.y + vy + PLAYER.h > SOLIDS[ i ].y && PLAYER.y + vy < SOLIDS[ i ].y + SOLIDS[ i ].h ) {
			vy = 0;
		}
	}
}

PLAYER.x += vx;
PLAYER.y += vy;

when you post code, click "fixed font"

Oliver Schöning

1:17 PM

grr sec, fixing

The link is html/js so can just see what I mean right away

:D

Oliver Schöning

Hacked that one together today lol.

1:32 PM

well that investor was a piece of ****

Kevin van der Velden

I mean, yes, investor

why even call me for a meeting, If he is going to say at the end that they currently have no money, they were supposed to have money, but they will have money around september.

-24

A: Add a red tooltip signaling that the "offensive" flag is a nuke

In my opinion, "offensive" flagging should be removed altogether. It should be hard to label something offensive1). If a problem occur that requires immediately attention the "in need of moderator intervention" should be used (or spam when appropriate). If actually offended1) the person would do...

lol, this guy

This doesn't sound as an investor, more like a scammer

They are actually a legit fund.

1:57 PM

Hmm why am I still getting points off a closed question? (that I answered)

On SO not GDSE

What actions can be performed on a closed question?

Kevin van der Velden

Votes certainly

That would probably be it, then.

I thought voting on a closed question didn't award points

Kevin van der Velden

It does, if it's deleted they get reverted

2:02 PM

Ah. It's from 2009

Lol

@ShaunWild Actually?

Kevin van der Velden

2:27 PM

Bye chat history

thanks for taking the time to investigate @ArtOfCode

→ 65 messages moved to Trash

no worries

Mah man

Kevin van der Velden

Huh not sure why that send me an invite to the trash room

lol I got one too

2:28 PM

Same

CRITICAL ENHANCEMENT COMPLETE

Yeah, that's a weird function. I'd really like a checkbox to stop it doing that

So guys, am I being cray-cray for generating a 32768-bit RSA key as my new key?

possibly a teensy little bit

Lmao

Kevin van der Velden

@MickLH naaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaah

2:31 PM

Now type it out by hand

Modulus: 2271296850[ 9845 digits ]2950357023

Public Exponent: 3892912334[ 4922 digits ]7887189871

That's as close as I'm gonna get to typing it out

Is it enough to serve as a fingerprint?

It took about 30 minutes to generate :P

I'm gonna embed it in my game client and hope it lasts long enough that by the time it's broken, I can replace the entire cryptosystem with something that will last for the rest of my life. Or that we will know that asymmetric crypto is technically impossible by then.

nice, I got just a 65536 one

fuck that just made me realize... I could have a 31337-bit key for approximately equal security

but why would you use a number that isn't 2^x?

wake up CPU... time to get hot

@ArtOfCode because 31337

it's a very elite number

perhaps the "eleet" number even

well, odd, technically

2:48 PM

1D107

Http://squizlabs.github.io/PHP_CodeSniffer/analysis/index.html

Debug.Log("Stop! Hammer time!");

return;

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Transcript for

Jun '169

Game Development

Game development and other polite discussion. Game development...

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