The Big Programming Thread - Page 99

On December 12 2011 09:46 Spidinko wrote:
@nakam : When object of MySubClass is being created, constructor of MyMainClass is called, which then tries to create test (object of MySubClass). That should be stack overflow imo.

I don't understand why would you want to have info on some subclass in any of your classes. Just merge these classes together or create inner class.

val list = List("First","Second","Third","Fourth")

val startInd = 1
val endInd = 3

for(i <- startInd to endInd){
println(list(i))
}

On December 17 2011 09:38 fabiano wrote:


by graphics you mean user interfaces or gaming?

For user interfaces I would recommend a book on QT. QT should be very easy to understand and start building apps rightaway.
For gaming you can look into OpenGL or use a framework such as Ogre3D. Both of these will take a little more time to code something "functional".

I dont know any books to recommend though, I dont read them cause I'm too lazy

On December 17 2011 09:41 Detri wrote:


#1 dont jump in the deep end so quickly

#2 coding is like cooking, you dont ice the cake before you bake it

#3 Accelerated C++ by koneg/moo is excellent, go read it

#4 ^^ after you do all that, then GUI's

#5 yuo may not want to listen to me cause i've half a bottle of Laphroaig down my gullet

On December 17 2011 09:46 fabiano wrote:
oh, you mean Computational Vision then.

You could take a look at OpenCV, but it might be hard for starters. I've never worked with OpenCV before.

On December 20 2011 13:41 GiygaS wrote:
Can anyone here help me with a problem that's been bugging me all day? I want to make a tile-based movement system for a Roguelike I'm trying to make in Visual Basic.net with the relatively low knowledge that I have (I want this project to be a learning experience). Anyway, I've run in to a problem with the controls.add function, where it only adds the one it's doing right now in the loop. This results in the 49,49 location of hte loop being hte only picture to display. Anyway around this? Here's the code and the result of the code if you want it:

Code:
+ Show Spoiler +

What I get back (note the one tile in the bottom center(the bottom right of the tileset):

+ Show Spoiler +

On December 20 2011 13:51 tec27 wrote:

What's baseline? Looks to me like you're initializing all of your PictureBoxes to the same reference (does VB even have references like that? I can't recall), which means that when you set various properties on the different array indices you're actually setting the properties on the same object over and over again. Try initializing each slot in the array to a new instance of PictureBox instead.

Also, there's pretty much no reason to use VB in this day and age with the plethora of easy and decent beginner languages available

On December 20 2011 13:57 GiygaS wrote:

Baseline is just a random picturebox I have placed through the designer. I was getting an error because none of them had anything in it before using the New keyword, so i just did that. All information(at leas the important stuff) is actually placed on to the individual array slots in the second double loop. I should have been more clear with the post. The rest of my code is fine, I just can't find a way to add these individual array slots to the control all at the same time (like I said, only the last one is registered :/).

@VB thing: I learned it in my class, and I have no alternative right now . I'm trying to learn Python right now but I want to work on this Roguelike first.

On December 20 2011 14:03 tec27 wrote:

As I said, you need to initialize each index in the array with its own Picturebox, or they'll all reference the same thing. As it is now, you're setting all 2500 slots to point to the same component, and then when you do things like set their X, Y, etc., you're setting that value 2500 times on the same component. Do something like 'pictile(intindex, intindex2) = new System.Windows.Forms.PictureBox()' instead of setting them equal to baseline and your problem should be solved.

It has nothing to do with "not being able to add them to the controls at the same time", you just can't put theh same component on the form 2500 times and expect it to magically have different properties stored in the same memory

On December 22 2011 01:04 green.at wrote:
Hey guy's quick question: In a 2D game with maps that are 2Darrays how would i implement multiple levels of altitude on one map. I think adding a z-axis is too wasteful, and placing smaller arrays "on top" of my ground level array seems suboptimal. any suggestions?

On December 18 2011 14:30 Millitron wrote:
OpenGL is really good, once you get all the libraries and DLL's installed. It was kind of a pain to do on Windows 7 64 bit; it kept saying it couldn't find files that I was absolutely sure were in the right place, but once it's installed, its great.

I used Visual Studio 2007, but I wouldn't recommend it, as the IDE's built-in debugger causes more problems than it solves. For instance, it absolutely will not run anything involving image maps if you try to run it within the environment. You have to compile it and run it as a stand-alone, which can be annoying if you have to test-run it a lot.

I would suggest using Eclipse for your IDE, as its been great whenever I've used it, though to be honest, I never used it for graphical work.