The Coding Thread

[Lethn]

Considering there are clearly tons of programmers/learning programmers here I think we should make a thread where we can talk about different programming languages and help each other out, I'm currently messing around in OpenGL though I suspect if I want to make anything functional like a game I'm going to have to properly get into C++ too, feel free to post code here of stuff you're working on and need help with etc.

            glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
            glClear(GL_COLOR_BUFFER_BIT);

            glLoadIdentity();
            glPushMatrix();
            glTranslatef(-0.5f, -0.5f, 0.0f);
            glPushMatrix();
            glRotatef (90.0f, -180.0f, 0.0f, 0.0f);
            glPopMatrix();

                                            glBegin(GL_TRIANGLES);




                                            glVertex3f(0.5f, 0.5f, 0.0f);   glColor3f(1.0f, 0.5f, 1.0f);
                                            glVertex3f(1.5f, 0.5f, 0.0f);   glColor3f(1.0f, 0.5f, 1.0f);
                                            glVertex3f(0.5f, 1.0f, 0.0f);   glColor3f(1.0f, 0.5f, 1.0f);

                                            glVertex3f(0.5f, 1.0f, 0.0f);   glColor3f(1.0f, 0.5f, 1.0f);
                                            glVertex3f(1.5f, 0.5f, 0.0f);   glColor3f(1.0f, 0.5f, 1.0f);
                                            glVertex3f(1.5f, 1.0f, 0.0f);   glColor3f(1.0f, 0.5f, 1.0f);

                                            glVertex3f(0.5f, 1.0f, 0.0f);   glColor3f(1.0f, 0.5f, 1.0f);
                                            glVertex3f(1.5f, 1.0f, 0.0f);   glColor3f(1.0f, 0.5f, 1.0f);
                                            glVertex3f(1.0f, 1.5f, 0.0f);   glColor3f(1.0f, 0.5f, 1.0f);



            glEnd();

            glPopMatrix();

I made a pink pentagon, WEEEEEEEEE! Can't figure out how to get GLRotatef working though.

[Este Nuno]

Nothing to add atm, but I support this idea for a thread.

[CIYAM]

Purely from a C++ coding style perspective I see no reason to be "indenting" the function calls you have (indenting is normally done for code *blocks* that are surrounded by braces or for conditional expressions).

You might consider using an "empty code block" to make it more express the indenting you are after though:

Code:

...
glPopMatrix();
{
   glBegin(GL_TRIANGLES);
   ...
   glEnd();
}

[jackjack]

I support a coding (sub-)FORUM

[BitshireHashaway]

I am interested in learning C++ mainly because that seems to be the most widely used language out there. I am already familiar with HTML because I've learned it some in school and have used it in creating my websites, and next year, I will be learning some Java as part of a course and will probably continue to mastery the following year. However, C++ I will need to learn by myself, so do you guys have any recommendations for me learning it by myself. My parents may help me as they both know C++ and multiple other coding languages.

[CIYAM]

I would recommend reading Scott Meyers and Herb Sutter and keeping your focus on Standard C++ always (i.e. not extensions for specific compilers such as MSVC).

BTW - https://bitcointalk.org/index.php?topic=203104.0.

[adamstgBit]

i can do the job 2 of 3 ways;

Cheap, Fast, Good

if you want it:
Cheap & Fast,  fine, but it won't be very good.. (Dirty Code! lol )
Good & Cheap, ok, ill do my best!
Good & Fast,    sure, but thats not going to be cheap.  50,000BTC  

 

[Lethn]

Have to admit, I think I'm starting to really enjoy messing around in OpenGL I just need to figure out how to make it interactive.

             glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
            glClear(GL_COLOR_BUFFER_BIT);

            glLoadIdentity();
            glPushMatrix();
            glTranslatef(-1.0f, -1.0f, 0.0f);
            glPushMatrix();
            glRotatef (90.0f, -180.0f, 0.0f, 0.0f);
            glPopMatrix();

                                            glBegin(GL_TRIANGLES);




                                            glVertex3f(0.5f, 0.5f, 0.0f);   glColor3f(2.0f, 0.5f, -1.0f);
                                            glVertex3f(1.5f, 0.5f, 0.0f);   glColor3f(1.0f, 0.5f, -1.0f);
                                            glVertex3f(0.5f, 1.0f, 0.0f);   glColor3f(6.0f, 0.5f, -1.0f);

                                            glVertex3f(0.5f, 1.0f, 0.0f);   glColor3f(1.0f, 0.5f, -1.0f);
                                            glVertex3f(1.5f, 0.5f, 0.0f);   glColor3f(2.0f, 0.5f, 1.0f);
                                            glVertex3f(1.5f, 1.0f, 0.0f);   glColor3f(1.0f, 0.5f, 1.0f);

                                            glVertex3f(0.5f, 1.0f, 0.0f);   glColor3f(1.0f, 0.5f, 1.0f);
                                            glVertex3f(1.5f, 1.0f, 0.0f);   glColor3f(1.0f, 0.5f, 1.0f);
                                            glVertex3f(1.0f, 1.5f, 0.0f);   glColor3f(1.0f, 0.5f, 1.0f);



            glEnd();

            glPopMatrix();

Coding spam woopeee!

[raze]

Just remember it's not the language that matters (okay, maybe it matters a little), it's the practices and techniques you learn from using that language. If you master the correct techniques, you'll pick up future languages faster, and produce better code and documentation.

[Elwar]

Have to admit, I think I'm starting to really enjoy messing around in OpenGL I just need to figure out how to make it interactive.

I did some coding in OpenGL, it is pretty fun. I had to open up some of my old math books from college that I figured I would never need again.

For interaction, you should first start with using a key listener. Making stuff happen based upon various keyboard keys is fairly easy.

[Lethn]

I dunno about that, I don't think I want to use anything particularly pre-made I think the only thing I've done that's pre-made so far is use the Codeblocks OpenGL sample to get all the window setup that I need because the tutorials I've looked at are outdated with some of the stuff they have. I did notice some VK commands for all the keyboard stuff in the compiler so I'll have to have a look at the syntax involved with that so I can make stuff move.

Edit: AHA! Nehe seems to be very good with this stuff and it's just what I need, IF commands ftw!

[Lethn]

Hmm, does anyone know of any good examples or tutorials for Codeblocks that show you how to code interaction with the shapes you make?

I may have just found what I needed just needed to look for a bit longer.

http://www.codeproject.com/Articles/27219/TetroGL-An-OpenGL-Game-Tutorial-in-C-for-Win32-Pla

[Welsh]

It would be really great if this got added as a sub-forum. I know it can be related to services etc.
But, this just seems like a great way to break it up from the other things located in other sections, however I don't have anything to add at this moment as i'm mainly a python programmer, and learning java now.

[Lethn]

Lets spam code all over this thread so the mods know there's demand for a category lolollool

[Illimensky]

Nobody here's programming in LOLcode?  Seriously?  You should all try it.

Wikipedia: http://en.wikipedia.org/wiki/LOLCODE

The Hello World program:

HAI
CAN HAS STDIO?
VISIBLE "HAI WORLD!"
KTHXBYE

As you can see, its insane efficiency at any task combined with its extreme brevity makes it a must for any real coding project.

[Lethn]

Bah, does anyone know some good tutorials that show you how to combine OpenGL and C++ while I'm searching for them myself? The OpenGL tutorials are great and I have an easy time drawing basic stuff on it now but I need to look up how to properly combine everything so I can interact with the shapes I make

[Lethn]

Can't believe I forgot about this tutorial.

http://www.cprogramming.com/tutorial/opengl_first_opengl_program.html

[Lethn]

           
            glClearColor (0.0f, 0.0f, 0.0f, 0.0f);
            glClear (GL_COLOR_BUFFER_BIT);

            glPushMatrix ();
            glTranslatef (-0.2f, 0.0f, 0.0f);
            glRotatef(theta, 0.0f, 1.0f, 0.0f);
            glBegin (GL_QUADS);
  
                              
                              glVertex3f (0.0f, -0.1f, 0.0f);
                              glVertex3f (-0.1f, 0.0f, 0.0f);
                              glVertex3f (0.0f, 0.1f, 0.0f);
                              glVertex3f (0.1f, 0.0f, 0.0f);
            glEnd ();
            glPopMatrix ();
            
            glPushMatrix ();
            glTranslatef (0.1f, 0.0f, 0.0f);
            glRotatef(theta, 0.0f, 1.0f, 0.0f);
            
            glBegin (GL_QUADS);

                              
                              glVertex3f (0.0f, -0.1f, 0.0f);
                              glVertex3f (-0.1f, 0.0f, 0.0f);
                              glVertex3f (0.0f, 0.1f, 0.0f);
                              glVertex3f (0.1f, 0.0f, 0.0f);
                              
            glEnd ();
            glPopMatrix ();

            SwapBuffers (hDC);

            theta += 1.0f;
            Sleep (1);
        }
    }

Must make it so I can click and drag these spinning squares

[Lethn]

Does anyone know of any up to date syntax for GLFW keyboard and mouse input? Or would you recommend something else? I'm searching around but I think I could use some help on this one.

[Welsh]

print("We want a sub-forum")
user_input = input("What do you say staff?")