The Big Programming Thread - Page 165

On September 08 2012 12:24 tec27 wrote:
Are you sure its not Objective C? Sounds like it'd be more applicable to what you're talking about.

On September 08 2012 12:28 3FFA wrote:

Not sure. I'll ask on Monday. She only said 'C' and she also said that she has been programming in quite a few languages for years and has been teaching programming for years.

On September 08 2012 10:06 CorsairHero wrote:I agree on that one. A git status on a 1.2 gb source repo takes about 30 seconds, which is a hell of a lot faster than cvs. I dont know what companies have a 10 gb repo. It should have been split up before it got to that size. Imagine how long it would take to build that.

On September 08 2012 10:34 3FFA wrote:
Ok, I started my Programming in C (not C++ , also this is a brand new course to replace the 12 or something year old course that this same teacher previously taught) class at my High School (With brand new Macs installed last Friday) two days ago. There are a bunch of planned projects and we'll also learn programming for apps.

Any tips for when I start actually learning C? Also, any places I could use to practice this? We will be using only whatever simulator it is that they chose and not porting any code onto real iPods or what not.

On September 07 2012 09:20 berated- wrote:


Every reason you can come up with for hating and therefore not using any IDE like Eclipse/Netbeans is pretty much erased when you deal with projects that are so large that you can no longer keep all of the code in your head. Call hierarchies and being able to dive through code at a fast rate are imperative when dealing with enterprise type environments.

As stated, not a huge deal for when you're in Uni...just wanted to give the disclaimer that your professor's view is skewed because he's in a learning environment and not a get-shit-done environment.

On September 08 2012 15:07 phar wrote:

That depends entirely on the build tools being used. If it's properly distributed, cached, etc., probably faster than your 30s git status :p

git doesn't scale. Other stuff does. That doesn't mean git is bad. It's very useful for smaller amounts of stuff. It just means if, like Facebook, you try to use git with large amounts of code,

On September 09 2012 00:40 CorsairHero wrote:Right, I don't know the exact set up of my workspace server (ntfs i think, not sure about raid configuration or cache size)

By scaling you mean performs better as the repo gets larger? Which ones do that and approx what point is git more efficient (assuming this is a code base with lots of files and not one for media files). Is clearcase an example of one?

On September 08 2012 15:11 Voltaire wrote:


This guide is GREAT for getting started with C:


http://computer.howstuffworks.com/c.htm



and I use CodeBlocks as a compiler. It's a great program.

On September 09 2012 23:55 Nausea wrote:
Well, I´m just gonna go for it I guess. Anyone good with SDL with c++? I have had this noob problem for a while now, been banging my head against the wall.

Basically, I want to be able to get the keydown state on any key, and if that key is a specific key, I want to time how long it is being held for during the time it is being held, not after it has been released. Any ideas on how to do this?

In a game this could be used to start charging up a gun after say 1-2 seconds, and right now I just cant figure out how to go about doing it.

Example: if key is pushed and released within 1sec, shoot rank1 shot.
if key is pushed for more than 1sec start charup animation.
when key is released, how long was it held?
more than 2sec? shoot rank2 shot

and so on..

Hope it is appropriate to post about SDL in this thread, since it´s about c++ too.

On September 10 2012 00:18 netherh wrote:


This part of the SDL documentation is pretty much what you're looking for: http://www.libsdl.org/cgi/docwiki.cgi/Handling_the_Keyboard

Inside the event loop you want to check for SDL_KEYDOWN and SDL_KEYUP events. Check the event information (event.key.keysym.sym) to see if it matches the key you want to monitor.

When you get the relevant key down event, start a timer (or set a value with the time the key went down - maybe use SDL_GetTicks() for this). When you get the key up event, check the timer or calculate the amount of time passed from when the key went down.

On September 10 2012 00:46 Nausea wrote:


Hey, thanks for answering. But, that part I know and can do already. What my problem is, is the following.
I want to be able to update the timer when the key is being held down, and update it during to see what time has passed without getting the keyup event. So i can start an animation when the key has been held for more than 1sec without letting the key up.

See my problem? I don´t know how I would go about doing this, i tried using a loop and running in while the keyup event for my specific key is not on the queue but that just puts the program in that loop until i release the key and that is no good.

int keyUpSeconds = 0;
UpdateKeyTimers()
{
     if(KeyDown("up")
     {
          keyUpSeconds++;
     }
     else
     {
          keyUpSeconds = 0;
     }
}

GameLoop() //whatever your loop is
{
     while(1)
     {
          UpdateKeyTimers();
     }
}

On September 10 2012 00:55 Zeke50100 wrote:


In your main game loop (or a function that is called in the main loop, like "UpdateKeyTimers()" or something like that), you could always have an if-statement checking for keys that are currently pressed, then increment a variable that corresponds to that key.

Just a bit of rough code that demonstrates the idea (although not particularly a good implementation of the idea):

+ Show Spoiler +

On September 10 2012 15:28 powerbygood wrote:
Can anyone help me with class templates? I've googled around for tutorials on it, but I am not grasping the concept fully on it. I keep getting an error that says template not defined even though I defined it in the header file while trying to implement it through the main program.