Game Development

DukeZhou

00:50

We just blew by 50 downloads on iOS! (pathetic and trivial I know, but slow and steady wins the race.)

mbrane.rocks

Android users--help a brother out!

PearsonArtPhoto

Let's see. Step 1: Make a unit testable cargo system.

From what I hear, doing frequent updates is one of the best ways to get up in the stats, but not too frequent. Once every week or so.

@QPaysTaxes No reason to bugfix/deploy from my current version. I don't really have a released version out there, so...

The reverting might help, but I could do that fairly easily anyways.

This might well be one of those cases. Hmmm...

Alexandre Vaillancourt

@QPaysTaxes knowing when not writing code is a great skill for a developer :p

not to write*

PearsonArtPhoto

Wow, this is a bit of a mess... Sigh.

LOL

Alexandre Vaillancourt

No I mean that if you think a bit more before you start coding, you can save a lot of time! That's a differnece between coders and mor senior developers...

Like "that feature would be very fun to code, but we don't need it so skip it"

Oh, no, don't worry, I have lots of experience with school teamwork, and I've been a TA too. Some people are lazy.

PearsonArtPhoto

01:07

Okay, so far I've managed to probably introduce about 50 compile time code issues.

PearsonArtPhoto

01:28

Any takers?

You could offer to let them counter.

Wow, I'm really doing this new code quite differently...

I'm working by first defining the data that I actually need to make this work. It isn't much.

PearsonArtPhoto

02:02

The question is, would you do it for $20?

Or counter at $25 and be happy?

Pikalek

02:24

trying to come up to speed on the current conversation, so this might be off point, but it might also be worth noting that there's often a big difference between academics (i.e. proffs) & production programmers

in some cases, you may in fact be smarter w/ respect to programming

mileage varies wildly

PearsonArtPhoto

You say you could use the side income, but you don't want to do it.

So pick the value where your side income is worth it. Ask for a bit more than that, and settle for where you value your time.

PearsonArtPhoto

02:45

Most people are.

Alexandre Vaillancourt

03:24

@QPaysTaxes Hehe some students know more than the professor. When your job is to do research on topic A and you're asked to teach topic B which you absolutely not care about, it sometimes shows :P

Free Internet Points

05:43

1

Q: Blender Animations glitchy in Unity

I have created a gorilla and its animations in Blender, exported the file as an FBX file and then imported it in Unity. The animations works fine in Blender, the loop is perfect for the walking animation. When I play the animations in Unity (in the animation preview and in game) it glitches at th...

user92578

09:29

What do we think about this stuff? gamedev.stackexchange.com/a/152217/35344

user92578

Okay because they say that it's their product?

Gabriele Vierti

09:43

It's still spam though.. he is not answering the question, rather inviting buying his product

user92578

> Post good, relevant answers, and if some (but not all) happen to be about your product or website, that’s okay. However, you must disclose your affiliation in your answers.

user92578

Ah looks like it's okay

Gabriele Vierti

Okay then

Alexandre Vaillancourt

11:42

@Tyyppi_77 @GabrieleVierti Looks ok to me. The answer answers the question (although they asked "how do I do it by myself") (maybe worth a downvote for that), and it clearly states the link with the author.. One could argue that it's a link only answerlll

doppelgreener

14:52

@DMGregory How much of this post ought to be converted to MathJax? In my reading of it, the only part of it that doesn't exactly look like it wants to be mathematical notation is the launchVelocity.x = deltaX/T; and launchVelocity.y = … lines halfway in.

DMGregory

Hmmm... good question. I'm still feeling out the right balance between paper-style notation and copy-and-pasteable code.

I might take a stab at replacing the image of the derivation with proper notation.

Actually, I've started using a slightly neater formula since then, so I might just give the post an aggressive rewrite. Thanks for flagging it. :)

doppelgreener

\o/

I gave another post of yours a partial revision. It looked like the rest ought to remain code since the first two equations were the only parts trying to look like mathematics and not code.

DMGregory

15:09

Agreed. Gosh I love having access to proper subscripts now!

Learning more about table formatting, I think there are some answers that could benefit from this markup even for non-math content. :)

doppelgreener

Oh yeah! I should mention arrays in the cookbook.

DMGregory

I'm now looking into whether there's a way to arrange two sequences of expressions in columns, so I don't take up so much vertical space with line after line...

doppelgreener

@DMGregory There is! Hold for a minute. :)

DMGregory

Ooh, thank you! :D My searches so far were turning up a lot of columns in the sense of "this vertical range in a matrix" rather than the page layout sense.

doppelgreener

Actually, hm, I'm not sure I have what you'd want. I was thinking of using arrays (gamedev.meta.stackexchange.com/questions/2590/…) to list your equations side by side... but you'd have to work across horizontally, rather than column by column, which would probably be pretty unpleasant.

DMGregory

15:27

Ehn, math formatting is rarely "pleasant" ;)

Stephane Hockenhull

Please don't do the Wikipedia thiing

At the beginning Wikipedia had plenty of pseudo-code examples of algos, then academics went in and deleted them all to be replaced with academic formulas that only people who already understand them understands them.

Gotta protect their elitist market exclusivity. Gotta pay for the classes.

doppelgreener

We're not replacing pseudo-code

Stephane Hockenhull

proper formulas are fine, but they really didn't need to delete all the pseudo code.

doppelgreener

We're replacing mathematical notation with mathematical notation

Stephane Hockenhull

cool

DMGregory

15:32

Right now I'm taking my awful handwritten scribble and reproducing it in actually legible text. XD

doppelgreener

E.g. code markup for mathematical layout to actual mathjax

Note the code blocks at the bottom remain untouched

same goes for this post, where all the mathematical markup became mathjax, and the pseudocode was left intact.

So the goal is math->math, pseudocode stays in place and gets accompanied by mathematics if it helps convey what's going on.

I'll update the conversion TODO list to make this clear.

Stephane Hockenhull

Cool.

Years ago I used to be able to give the junior programmers links to wikipedia algos and off they went on their merry way so I could get back to getting my own things done
At least once a month I hit this issue.

They find the wiki article on their own, spend 2-4 hours trying to understand the Wikipedia article by themselves, I gotta stop what I'm doing (with the huge productivity cost that comes with interruptions) and it takes me only 5-15mins to explain in plain English.

Every time: "Oh, why didn't they say so on the wikipedia page." -Jr

user4704

@Tyyppi_77 Do you know about the bug where falling into a pit kills you but doesn't bring up the restart menu? And lets you scroll around the level forever?

Stephane Hockenhull

@doppelgreener It must be why I'm putting my efforts into GDSE and don't bother with Wikipedia anymore. I got two pseudocode edits reverted and that was enough.

user92578

@JoshPetrie I had a friend mention that, I haven't been able to reproduce though. Thanks for reminding me though!

user4704

15:44

It happens to me basically every time I feel like. It might only be when you are taking damage as you fall in. One of the later levels in the winter area was really good for it, hang on

doppelgreener

@StephaneHockenhull How does the checklist at the top of this post look to you?: gamedev.meta.stackexchange.com/questions/2588/…

Stephane Hockenhull

I like it.

doppelgreener

Cool!

user4704

Yeah, in the "Leap of Faith" level, at the start, hop over the first set of sawblades, and then turn around and hop back into them so you're taking damage as you fall into the pit.

user92578

Aight thanks! Sounds like an easy fix once I figure out what's wrong.

doppelgreener

15:47

@StephaneHockenhull Wikipedia does regularly deal with that kind of impenetrability on academic pages: the only people who can understand the page are the people who already know what it's talking about. To ordinary individuals or learners, the page is impenetrable. I definitely want GDSE to be understandable to learners, or there's no point to this site.

user4704

I'll end up down there, I can move the camera left and right, and constantly here the "smush" noise of the player getting killed, but his health slowly counts down from 5% to 0% and stays there

user92578

Sounds super annoying, I'll try to get it patched up asap.

user92578

yeah it's super weird, I just did like a hundred jumps there and so far no issue

Stephane Hockenhull

@doppelgreener yeah, seriously. Academia is trying hard to protect their high-priced walled garden. *puts on tin-foil hat* I wouldn't be surprised they start going after SE like they did to Wikipedia.
I had one answer about A* (it's always about A* isn't it?) where a dude started arguing in comments my answer was too simple and using academic buzz words, without ever writing an answer himself nor brining anything of value to mine.

user92578

16:02

Aight thanks a ton @JoshPetrie, I got it. I deal the player the amount if it health in damage, but the damage function always applies the difficulty modifier on the damage dealt, which on Easy is less than 1. I was testing on Intermediate, which is why I wasn't able to reproduce this before!

user4704

Ah yeah. I switched to easy to farm achievements :P

Stephane Hockenhull

I find it funny when the same people complain that academia is so expensive then turn around and fight to preserve the high price of their investment.

doppelgreener

i don't think it's that. it's that teaching is not easy, or doesn't come naturally to many people. it requires us to understand a topic, then:
1. recognise another paradigm exists, wherein someone doesn't understand that topic.
2. try to insert ourselves into the perspective of that paradigm.
3. look from that paradigm into our own, where we understand the topic.
4. examine what we need to show them to help them understand the topic. since we might have to bring them across several topics to get here, this becomes a fractal exercise.

there's also 2 stances on what a Wikipedia page can be:
1. a reference document for those well-versed in the topic.
2. an introduction to the topic for those who don't know it.
IMO wikipedia pages should be both, but someone who only wants the page to fill one purpose can see filling the other purpose as a detriment to the page's quality. or they want to do both but they suck at #2 (see above).

user92578

So lesson learned here is to just do ugly hacks instead of trying to be nice and neat and removing m_Health from health.

user4704

hah

Stephane Hockenhull

16:07

@Tyyppi_77 The entire world works on ugly hacks.

user92578

// The modifier negates the effects of the difficulty modifier.
static const float massiveModifier = 100000.0f;
DamageEntity(level, this, m_Health * massiveModifier, true);

DMGregory

@doppelgreener looks like putting two begin/end align blocks without an explicit newline in between formats them side-by-side, without the need to interleave like a matrix. Not sure about spacing control though.

user92578

So I enabled the intel virtualization thingy from BIOS this week and damn virtual box is so much nicer to use now

doppelgreener

@DMGregory oh man, that makes sense!! mathjax prefers to work horizontally until it's told to do anything vertical.

Stephane Hockenhull

HAHA yes, hardware virtualization makes thing run almost native speed.

user92578

16:09

yup!

Stephane Hockenhull

Something that dates back to (if I remember correctly) the VAX machines, we finally get on PCs :P

Wait, no, VAX was virtual memory (protected mode)... hrm, I can't remember which old machine had hypervisor and full HW VM.

user92578

I'm running Windows 10 Home so I don't have the Hyper-V thingy but it doesn't seem like I really need it now

user92578

also damn the compilation speed is so much better now

user92578

It used to take like 30 mins for me to make a linux build

doppelgreener

Btw folks

chat.stackexchange.com/rooms/70317/mathjax-posts-in-review

I made this chatroom so people below 2k rep could suggest edits for our mathjax conversion

I'll be keeping an eye on it; anyone else who wants to do so I'd appreciate the assistance.

(I don't know how much activity will be there.)

user92578

17:25

Aight patch is live

DMGregory

18:34

Oof, that was a marathon. Got all the derivations of the formulas explained in MathJax. I'm going to come back to add diagrams and fix the code in the first half after a break. ;)

Almo

19:15

@DMGregory the magnitude delta p and magnitude a are different sizes for some reason

in the first big-ass square root

looks really cool though

Sie

19:28

So uh... I have been working on the vertex whisperer a little bit again. However my coding skills have hit a brick wall.

If you recall you can manipulate one vertex at a time but how would I code it so that you could manipulate two or more at once?

Like searching on a line for two vertexes.

DMGregory

@Almo Yeah, I think the delta bumps up the p's height. Think I should try to finesse it?

Almo

nah

it's legible

was just wondering if it was some simple mistake

Sie

Here is the old code if anyone wanted to take a peak. Truth be told I got a lot of help from a particular friend of mine and my coding skills are lacking.

pastebin.com/CxwjSBMc

Stephane Hockenhull

@Sie find the closest edge-edge "interrsection" (closest point on two lines)

@Sie geomalgorithms.com/a07-_distance.html

Sie

I'll have a look. Thanks.

Stephane Hockenhull

19:38

In the section "Distance between Lines"

One is your mouse ray, the other is the polygon edge.

You'll have to clamp the line into a segment for the polygon edge. It'll give you the closest it comes to the segment or either vertex of that segment.

DMGregory

21:48

@doppelgreener Done touching things up. I decided to do the derivations entirely in math formatting, but leave the formulas at the top in code style so they're more readily copy-and-pasteable for folks less familiar with vector math notation.

Also redid the diagrams so I could ditch the old messy hand scrawl and its occasional mistakes. ;)

Stephane Hockenhull

22:08

GUI Progress - Window docking

►

Added a preview overlay (GUI->RenderTexture) to the docking drag-and-drop.

With GUI scaling and all that jazz :D

I still need to figure out how to do proper alpha-transparent windows in X11. I think there's a bug with Compiz. But I'll put my efforts on the Windows port first.

user92578

Cool stuff!

user92578

Who upvotes this stuff? gamedev.stackexchange.com/questions/151978/…

Stephane Hockenhull

Now I can have the inventory window or game's mini-map detach from the game's window and be dragged to another display dynamically as the game is running.
And switch any window to full-screen/windowed independently.

Score leaderboard, chat window, you name it :D

user92578

How does that work?

Stephane Hockenhull

I just have to put a "detach/attach" button to a GUI element and my engine takes care of it. Click on it and it creates a new OS window with a new shared OpenGL context and start to render that UI element inside it.
Drag the button back into a window with a "dock" GUI element and it automatically render that GUI to a texture, renders the overlay until you drop and then it moves the GUI element into the GUI tree and closes the other window.

I mean: MAGIC!

user92578

22:25

Oh awesome

Sie

I will literally upvote anything.

Stephane Hockenhull

Next I have implement optional docking to the element's sides.

Now that I got the docking preview overlay working.

Bálint

Sorry, wrong link

0

Q: Performance issue, How to load all sprite at Beginning

it seems my game face performance issue when test on Android Device, the problems like below : a) in first screen/Main Menu i have 20 buttons, when i click one of them then they need around 7-10 seconds to load 2nd screen, but this just first time only. b) after 2nd screen opened, if i back to...

unity sprites performance

He's complaining about slow loading times

His sprites are 2048x2048 each

Stephane Hockenhull

22:40

HAHA

PearsonArtPhoto

23:08

It's kind of amazing. By re-doing my code right, it is becoming much simpler.

But it sure is a pain to do...

doppelgreener

@DMGregory nice :)

btw, is there a reason you prefer \begin{Vmatrix}\vec v_0 \end{Vmatrix} over something like \lVert \vec v_0 \rVert?

DMGregory

I think I just missed the latter.

PearsonArtPhoto

Getting this to compile, however, is going to be a pain...

PearsonArtPhoto

23:31

I think I might get rid of stability while I'm at it. It would be interesting to do that, but I don't think I'm actually going to get it to work right, so...

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