/pr/ - Programming

There's a new /777/ up, it's /Trump/ - Make America Great Again! Check it out. Suggest new /777/s here.

Movies & TV 24/7 via Channel7: Web Player, .m3u file. Music via Radio7: Web Player, .m3u file.

WebM is now available sitewide! Please check this thread for more info.

Help/Advise on card game. Neckbearded Basement Dweller 15/07/22(Wed)05:05 No. 4770 [Reply]

File 143753432679.png - (13.88KB , 631x288 , Capture.png )

Hey guys, first time posting. Im programming a battle card game and im just having some trouble on drawing a random card from a deck of 60 cards and removing the card from the deck completely.

Ive been using a random number generator to test this but since you cant take a variable out of an array it makes it a bit hard.

Neckbearded Basement Dweller 15/08/15(Sat)21:07 No. 4786

Alright, the best/easiest way to do this since you seem to be using VB.NET would be to use an invisible listbox since you can remove items from them. Then use the random generator to change the SelectedIndex property.

Neckbearded Basement Dweller 15/08/29(Sat)04:57 No. 4794

instead of removing the card from a random place in the deck, why dont you have the deck randomized and take a card from the top, using a vector for the data structure? thats what i did in a recent blackjack sim. easily able to copy the top card to a player hand(aka another deck), then pop off the top card from the deck.

not sure of c# notation, but its my best guess.

Report loop for an SQL-table? Neckbearded Basement Dweller 15/08/19(Wed)13:57 No. 4789 [Reply]

File 143998544042.jpg - (93.86KB , 1000x646 , CP00990-002.jpg )

Please don't laugh. I know it's not normalized. The data is supposed to be able to entered achronologically without fugging things up. It looks something like this:

#01 2009-11-11 Bookstore Book Art 200.00
#01 2009-11-11 Bookstore Book History 50.00
#01 2009-11-11 Bookstore Paymt. Cash -100.00
#01 2009-11-11 Bookstore Paymt. Card -150.00

#02 2009-11-09 Gaym'aven Vidya Mario 20.00
#02 2009-11-09 Gaym'aven Vidya Zelda 25.00
#02 2009-11-09 Gaym'aven Vidya Sanic 28.00
#02 2009-11-09 Gaym'aven Candy Skittles 10.00
#02 2009-11-09 Gaym'aven Soda Cola 2.00
#02 2009-11-09 Gaym'aven Paymt. Cash 85.00

#03 2009-11-12 Dress Gud Shoes Autist 75.00
Message too long. Click here to view the full text.

Resources for C++? confoosoid 15/05/30(Sat)04:53 No. 4741 [Reply]

File 143295440390.png - (90.58KB , 600x338 , risk-of-rain-ur-ded-screen.png )

Hello.
I have been looking for the resources I could use for learning C++, but most of the stuff I have been finding is outdated or terribly optimised (as in, if using third party libraries)

I always wanted to start playing around with creation of the games, or just anything that can get related behind that.

I have some experiences with C# (just applications) and I quite well understand code if I have documentation on board or just enough time.

but C++ is different, less sophisticated yet less limited compared to the same C#. Could you help me out with learning resources? Something not too obvious, but not as complex.

Thank you.
TLDR: I want to learn C++ and I am terrible at searching stuff, help out.

2 posts omitted. Click Reply to view.

Nattajerk 15/06/25(Thu)06:41 No. 4762

>>4742
I def recommend C++ Primer 5th ed if you can get it for a decent price, i would almost say its seminal.

>>4759
indeed, the official book from Bajarney Stroganoff is not for the beginner, unlike K&R for the C counterpart.

Neckbearded Basement Dweller 15/07/11(Sat)03:32 No. 4767

rekt*

Neckbearded Basement Dweller 15/07/25(Sat)13:55 No. 4772

this

http://www.learncpp.com/

Neckbearded Basement Dweller 15/07/24(Fri)07:09 No. 4771 [Reply]

File 143771455552.png - (88.88KB , 1020x676 , morphemegame.png )

I'm in need of some help. I'm desperate to get this started already. I have made a multi-client threading which means there will be many clients running a server. I have all the code ready, but my only barrier right now is making a download link that will install the client code onto the user's desktop (using any platform) and run the java application from the desktop. My webpage has an a href link but I don't know how to make the directory such that it will access and download the content the link directs you to with a dmg or exe file (based on platform). I also need help with putting the server somewhere on my VPS for website or WHM (web host manager) which is apparently the "back end" of the webpage.

If anyone would like to direct me to a URL that walks this through step by step, I will be very grateful. If anyone wants to help through Skype walking me through it step-by-step, I will reward you via paypal a great sum of money for the help. This is only given assuming you make the link on my site download all relevant content to the desktop and runs it perfectly.

If you are interested, please contact me at boggle@hotmail.ca

This is way too hard for me, not the coding. Your help is much appreciated! Thamks

Neckbearded Basement Dweller 15/05/27(Wed)17:08 No. 4737 [Reply]

File 143273931665.png - (12.44KB , 1025x176 , 145.png )

I'm trying to figure out this problem. Here's my code in python:

def reversible(limit):
num_list = ()
for num in range(1,limit):
num = str(num)
if num[-1] == 0:
break
else:
sum = int(num) + int(num[::-1])
checker = 0
for i in str(sum):

if int(i) % 2 == 0:
break
Message too long. Click here to view the full text.

1 post omitted. Click Reply to view.

Neckbearded Basement Dweller 15/05/28(Thu)17:38 No. 4739

Say you have a number 13739, is there an algorithm to break that down to its two components x and reverse(x)?

Neckbearded Basement Dweller 15/06/15(Mon)21:45 No. 4761

>>4739
Most of the cause of the slow speed is because python loops are slow. You can look up numba, which is a jit compiler that can speed up numerical computations like this very well.

If you really want to reverse a number without converting to string, you could do mod 10, subtract result and divide 10. Numba should speed that up nicely since it's a numerical loop.

Neckbearded Basement Dweller 15/07/13(Mon)20:52 No. 4768

my solution (quick n dirty)

n=0for i in xrange(10,1000000000): if i%10==0: pass else: c=False j=int(str(i)[::-1]) for k in str(i+j): if int(k)%2==0: c=True if c==False: n+=1print n

Solution still unknown coz the program is still running (on an ARM v6 lol), I expect it to finish by tomorrow morning.

Neckbearded Basement Dweller 14/07/03(Thu)05:32 No. 4501 [Reply]

File 140435837030.png - (141.51KB , 1178x583 , SDFDSFSDFSDF.png )

This author is really starting to piss me off. I paid 15 dollars for this shit, and I think I have picked out two huge errors he has made. Book is Java 7 for Absolute Beginners, by Jay Bryant.

First example:
On page 79, he says that

int a = 0;
int b = 1;
String s = "s";
String sToo = "s";
System.out.println(a == b);
System.out.println(s == sToo);

will generate the results "true" and "false" respectively. Eclipse begs to differ. Here's what it says:

false
Message too long. Click here to view the full text.

9 posts and 3 images omitted. Click Reply to view.

Nattajerk 15/03/04(Wed)22:29 No. 4702

i tend to get book reviews long before i buy a book these days, after being stung by C++ Primer Plus and Learning PHP & MySQL before, not even the animal books are safe from bad authors.

doing your homework requires doing your homework to do your homework, it's ridiculous.

4503 inter 15/04/22(Wed)23:04 No. 4727

(488x416)

(805x593)

Neckbearded Basement Dweller 15/06/15(Mon)10:09 No. 4760

>>4501
if two constant strings are of the same value they will likely be interned and share the same ref so:
String s1 "123";
String s2 "123";
s2==s1 will be true as the are really the same ref.
but if one or the other is modified, the ref will change
for reliablity use the equals method on objects and == on primitives
which also means on your own classes you may need to override the equals method

Neckbearded Basement Dweller 15/05/25(Mon)05:22 No. 4735 [Reply]

File 143252415564.png - (6.85KB , 213x213 , Icpc_logo.png )

ACM programming competitions are done - Russia kicking ass.
Thoughts?

Subscription Manager Neckbearded Basement Dweller 15/05/30(Sat)07:18 No. 4743 [Reply]

File 143296310212.png - (51.87KB , 2200x1000 , woocommerce-logo.png )

Hey guys , I had a offer to build a subscription service with premium content . I want wordpress to manage payments and subscriptions . To build the custom content i'm using codeigniter .I'm using woocommerce + subscription , Is this the best approach ?

Wanting to learn to program johon wkes 15/01/14(Wed)03:11 No. 4669 [Reply]

File 142120146693.jpg - (5.15KB , 192x249 , imagesVGHIFR3K.jpg )

Wanting to learn a program language two questions;
1. What is an easy beginner language to learn.
2. What language after the beginner language to follow up with.

7 posts and 1 image omitted. Click Reply to view.

Neckbearded Basement Dweller 15/02/22(Sun)01:08 No. 4696

File 142456369551.gif - (1.98MB , 350x251 , 1423686769031.gif )

Just learn Python 3. Its highly documented, easy to use, easy to program and will give you a good idea on what you're doing

alternatively, if you dont really like python, try Ruby. its a different approach to the same thing.

after that it depends on what you want to do. If you want "practical for moneys", learn Java, or C#, or C++

if you want to do OS dev, or microcontrollers, do C

if you want to do webdev, do JS, PHP, HTML/CSS, SQL and see what frameworks interest you(Ruby on rails, node, angular, etc)

if you want to be a special snowflake, use Lisp with SBCL, Hasklel, or ASM

just dont start with C or Assembly, really. a bunch of retards who didnt start with it will say you'll learn how the computer really works! which is largely untrue. Autistically managing resources is a waste of time for most development. using malloc isn't a hardcore skill.

Message too long. Click here to view the full text.

Neckbearded Basement Dweller 15/05/29(Fri)05:19 No. 4740

1. Python is a very easy language to learn, especially if you understand the fundamentals of programming.
2. I would say C, or maybe Java, since Java has a higher level of abstraction.

idoit4thelulz 15/06/02(Tue)03:59 No. 4744

I'll be different and say start with Racket. Don't even think about a second language yet though. Where you go next is a bridge to cross when the time comes.

BTW, I started with BASIC in the 80's, immediately followed by Z-80 assembly language. Now I code in C and Perl mostly. But anyway, asm back then wasn't so difficult because the machines were much simpler (check out MOS 6502, for example). Actually BASIC->ASM path would still work fine today if someone happens to have a simple 80's machine. Modern hardware and OS are too big of hurdles for that sort of thing.

Any help is appreciated! Neckbearded Basement Dweller 15/06/05(Fri)10:56 No. 4745 [Reply]

File 143349458999.jpg - (40.12KB , 500x428 , 1433312565948.jpg )

Hello 7chan, I don't come here ever but I need help from someone familiar with python. I know nothing of programming and I need to modify a game in a variety of ways. Most of the modifications I'm able to figure out on my own, they're as simple as changing a few variables. However I've hit a dead end, and I need to make one more change.

The game is called space fortress and was a DARPA project to test various aspects of learning, reaction time, and gaming. It's a very simple 2D shooting game, nothing complicated. Here's a link for anyone who's interested in it:

https://www.dropbox.com/sh/p6wvyw7jd7vyjlr/AAAuKD6Vlfvsp4Ned0qUls0Va?dl=0

What I need to do is create a wind effect that constantly blows the ship downwards by 0.4 pixels per game tick. That will require adding lines of code that I have no idea where to begin at. If you can't do it yourself I'd appreciate it if you told me how extensive of a modification this would be. I assume it's a simple command to have the ship always move in one direction, -0.4 on the y axis to be exact, but again I'm not a programmer. So any help would be appreciated.

2 posts omitted. Click Reply to view.

Neckbearded Basement Dweller 15/06/06(Sat)11:29 No. 4749

Yes that makes sense. Would adding 'self.position.y -= 0.4'to the compute method under ship.py do that? That's a suggestion I got from a different board.

Neckbearded Basement Dweller 15/06/07(Sun)05:38 No. 4750

File 143364830511.png - (227.25KB , 1920x1080 , Untitled.png )

I was told this would work. But my lack of programming knowledge makes it difficult for me to troubleshoot what I'm doing wrong. I'm not a programming student.

Neckbearded Basement Dweller 15/06/08(Mon)00:58 No. 4751

So I added 'self.position.y += 0.4'in ship.py under computer and it works!

Thanks for taking the time to read this thread.

Delete post [File Only]
Password

Report post
Reason