Game Development - 2014-09-19 (page 3 of 3)

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8:00 PM

menu done for now, working on the actual gameplay now :)

Decided that I needed to learn how to use Unity a bit more than I had

Also, in other news, I have my first robotics meeting tonight!

8:10 PM

wewt

@Pip Done with the new UI?

Aaaand box2d is not applying forces ... fuck

@Lokkij I'm using the new UI, if that's what you're asking. I like it a lot

@Pip I agree, it's pretty damn awesome

@Nick physics engines hate me

8:14 PM

@SpartanDonut same ...

Mostly because I refuse to learn them / I find them too confusing to learn so I give up and write my own pseudo physics which are good enough :)

Lol wtf I add the impulse but the debug render wont move

that sucks

The debug render changes color when I try to add velocity ... so I got that going for me, which is nice

Aww yeah, builds fullscreen and with an icon and everything

Now to make all the buttons work :P

8:26 PM

Hah got my problem.. I was applied too little force.. I was applying 1f and to make it move I made it apply 1000f every frame :p

lol

Done, time to move to the gameplay scene and prettify it!

and actually add gameplay, ofc

I actually enjoyed building the GUI!

i get to build the DB for my lowest number game this weekend

we need a close reason on SO: "No jQuery"

Is it me or does something seem wrong having ot apply 10.000f to an object ot make it move at a reasonable speed?

depends on how much mass the object has

impulse and force are WAY different

@Almo well impulse

8:31 PM

impulse is an instantaneous change in momentum, force generates acceleration over time

@Almo im using Linear Impulse

so if you apply a 10000 impulse to an object with 10000 mass, you'll get 1 velocity

roughly speaking

"the mass of a fixture is the density multiplied by the area"
I have set the density to 0 ...

I would expect that you would add an impulse one frame, and it would be moving

I don't recommend density 0

i would expect weird results if the mass is 0

set it to 0.0001 and I still need to scale the impulse by 10.000 for it to work wtf -.-

8:34 PM

set your density to 1

what are you using? box2d?

you want "ordinary" numbers for physics engines

@Jon yea box2d

with bullet physics, setting mass to zero makes it a...kinematic body, I think it's called. meaning force has no effect on it at all.

with box2d there is also sim units, vs world units

8:35 PM

not sure what box2d does

make sure your object size is not retardedly huge in sim units

common problem for objects that do not move

... density at 1 moves at the same speed o.0

still, use density 1. now you know the density is normal and not causing a problem

/me is confoosed

like i said

size matters

8:38 PM

Update: Just built Build 3!

Now all buttons function correctly, even on the gameplay screen

paste.ubuntu.com/8382457

The relevant code if anyone wants to help

way to go pip

wait a sec.... wtf is wrong now!?!?!

are you sure friction = 1 is a reasonable number?

now for some reason none of the buttons in the gameplay scene work....

huh

8:41 PM

i'd start with friction = 0

@Almo had it set to 0 before

what the frick did I do?

same results

then mess with it once the rest is working

setRadius(0.1f)

8:41 PM

what's pos.scl?

@Almo scales the vector... I told you I needed to apply a massive amount of force

please use the right words so i don't get confused. you mean impulse

@Almo yea impulse sorry :p

I don't quite understand pos

it's the screen position then you try to do an impulse with that?

The debug output of the amount of impluse im applying:
-1899999.9 3425000.0
-4025000.0 -150000.03
2700000.0 -2125000.0

8:43 PM

impulse?

@Almo yea relevant to the touch position, it will cause trouble further away from 0,0 but a good way to test that I have box2d working

@Almo fixed :p

first, just kick the thing

don't have it dependent on input

you touch anywhere, and you hit it with a vector that's (1, 1)

go back to basics when trying to get something new working

eliminate other possible problems

Alright changed it to 1f, 1f

Now doesnt even move

hardcoding 10000 makes it move

gawd I hate Monodevelop

why

8:46 PM

are you applying the impulse to the center of the object

"body.getPosition().x, body.getPosition().y" assuming thats the center (I hope :p)

box2d.org/forum/viewtopic.php?f=3&t=5098

@Jon it just opened the frickin solution twice without me clicking once

that talks about getting the center

@Pip that doesn't make sense

8:48 PM

this is a common problem when working with physics engines: getting the right kind of numbers for it to work properly

@Jon In the monodevelop window, when I started it, it opened the solution twice, without me selecting anything to load

Can I have some help, btw? I can't click any of the buttons in one scene for some reason

googlez isn't helping

using body.getMassData().center.x makes it go even slower wow

sure what's the problem?

also. yeah monodevelop is kinda shitty

it has gotten a lot better though

True, not as good as VS tho

exactly.

8:50 PM

XCODE

;)

vim

Idk what the problem is, but i can't click the buttons in one of my scenes for some reason

what are you doing to handle the click event?

/me gives up to the gods of box2d

box2d is a pain to get set up

i've used it extensively

8:53 PM

Uh... using the default Unity stuff that works in the other scene @Jon :/

Yea I just learned that the hard way

once you got their debug environment hooked up, it is a lot better to work with

@Pip you are not making it easy to help you

@Nick why give up?

want a download of the exe or scenes?

did you lose you faith?

in me?

8:55 PM

@Pip don't think i have unity installed on this guy

raises eyebrow

yeah no way that I do

ah, alright

hmm, i do

fine send it

alright, uploading to google drive now

8:56 PM

@Pip just go monogame

huh?

unity sucks

Anyone here has to suggest any good C IDEs?

C/C++ specifically

i always heard CodeBlocks is good

@Nick Visual studio?

8:57 PM

I use Xcode, so I can't comment beyond that

visual studio

@Ali.S cough linux cough

@Jon ^

@Nick kdevelop?

in lunix apparently it is code::blocks

@Jon I love Unity though

8:58 PM

@Jon heard about that one, might give it a try

@Pip I was being a little arrogant :P

also I've heard there is a CLion IDE coming out

@Ali.S first time hearing that one ... check out time

@Nick it's way better than code::blocks

@Ali.S o0o0o0o0oo0o0o0o0oo0o0oHHHHHHH As a jetBrains fanboy I cant wait

8:59 PM

well you can test it, there is an early access program

@Jon is .7z okay or do you need .zip?

but anyway, kdevelop is the best c++ IDE I've tested besides VS

Qt creator is also good, but I liked kDevelop better, though it takes some time to get used to it

And the dark theme looks excacly like IDEA ... I think ill use the jetbrains one ... or wait until a pretty stable build is out

@Pip gf home hold on

kk

9:03 PM

for me, IDEs are like this: VS>>kDevelop>QtCreator>>xCode... and the rest (eclipse, codeblocks, dev-c) don't really compare

didn't test clion though

@Jon drive.google.com/… for when you get back

ok

project is open, but missing a bunch of stuff

32 errors

what am i looking at?

@Nick I've had good experience with Code::Blocks due to its noob-friendly interface and easy "Compile & Run" button

btw can anyone answer a question on Lua + C++ binding organization techniques?

@Cinch I am not looking for noob friendly :)

@Nick Well then I guess you should do vi lol

jk

9:11 PM

@Cinch nano4ever

ello ello

they are setting up a custom nuget repo at work

anyways, i've been devving on monogame 3.2 dev branch

pretty decent platform

sucks to get started, due to the content pipeline problems

but once you get that figured out, its pretty sweet

9:29 PM

@Jon uh... what errors are those?

@Jon there are lots of those :)

you may need to update to Unity 4.6 beta 17 :P

yeah

i think so

My project is using the new GUI system, which is only in the beta atm

yup.

ping me when you're finished please :)

lol ain't doing that tonight sorry

i'm dj'ing at the moment

9:34 PM

kk :)

taking the chicky out

have fun!

user image

:D Pre-ordered a GTX 970

jello

9:42 PM

@JohnMcDonald nice

that card crunches polygons for breakfast

Nice!

Should be good

:)

Might be able to see my reflection in BF4's glass finally

9:47 PM

apparently some microcenter locations have 980's and 970's in-store now

you might also be able to turn the heat off in that room

if its not already off, lol

heh, apparently they are quite power efficient, and the Asus model can play both SCII and LoL with the fan turned off (and it does this automatically below a certain temp)

i got the ati HD7800

the idea was to get another one to crossfire

but it is pretty solid by itself

yeah, I was planning to get another 570 too, but by the time you need one, it's both cheaper and easier to just get a new single card

yup

9:51 PM

okay, maybe not cheaper, :p

not cheaper.. but more enticing

I have no idea what I would use a second 780 Ti for, but I want one anyway

also, the crossfire boost is minimal

you will get better performance, but not 2X

nowhere near 2X

also dependant on your motherboard

some crossfire setups are not actually full throughput

secondary card is derped

Hm

@IcyDefiance LoL?

D:

9:59 PM

maybe later :)

okay sure

awesome

@Almo another game if I have time :)

10:33 PM

Man, Vuforia has some fucking impressively accurate image tracking

lol

@Pip whats funny?

Thought folks might like this edx.org/course-list/allschools/high-school-courses/…

Includes AP CS

Just won a game where our Xerath was AFK the whole game

Was pretty fun :D

My performance wasn't great, but the teamwork and friendly people saved our team. In solo queue!

@IcyDefiance Fuck

10:48 PM

@Pip solved that problem yet?

Hello?

Scripting question? Savvy?

11:03 PM

Savvy

10 if 10 goto 20

20 goto 10

when i drink i dumb down to basic

11:45 PM

user image

be safe out there

... 2 hours in queue for the first 1000 spots... 3 hours to go?

user image

lol I haven't even been trying to log in

^ archeage has become a line waiting simulator

And a damn good one at that.

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Game Development

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