What do you need help with? V. 3.0

[esalaka]

[QUOTE=Tangara;30301644]heh[/QUOTE]

I think I've use Flash MX 2004 a few times.

It's decent.

[backwardspy]

[QUOTE=amazer97;30299586]Does anyone have any good tutorials on making a GUI?[/QUOTE]
Writing a GUI system from scratch? Or using an existing library to make a GUI?

[DeadKiller987]

I'm using [cpp]system("cls");[/cpp] to clear the screen, but that is Windows-only. How do I clear the screen in a way that would work anywhere. Preferably in C, not C++.

[backwardspy]

Depends if you're willing to use a library for it or not :v:

[thelinx]

[QUOTE=DeadKiller987;30304209]I'm using [cpp]system("cls");[/cpp] to clear the screen, but that is Windows-only. How do I clear the screen in a way that would work anywhere. Preferably in C, not C++.[/QUOTE]

If you're making a game in terminal-space, you really should look into using a curses-library.

[Richy13]

In C++ what would be better to use float or double?
I know float has some problems in C# but i think they dont affect C++
The numbers it will be holding are Pi, Pi/2 Pi*2...

[DeadKiller987]

[QUOTE=Richy19;30304501]In C++ what would be better to use float or double?
I know float has some problems in C# but i think they dont affect C++
The numbers it will be holding are Pi, Pi/2 Pi*2...[/QUOTE]

Double, unless you need extra performance/memory if you're storing many floats, then use float.

[editline]7th June 2011[/editline]

[QUOTE=thelinx;30304427]If you're making a game in terminal-space, you really should look into using a curses-library.[/QUOTE]

Will it compile on my iPhone? I have a problem where I can't find C++ headers that work with iphone-gcc, hence I'm trying C. I'm porting my game from Windows C++ into Cross-platform C and removing all Windows-specific crap.

[backwardspy]

[QUOTE=Richy19;30304501]In C++ what would be better to use float or double?
I know float has some problems in C# but i think they dont affect C++
The numbers it will be holding are Pi, Pi/2 Pi*2...[/QUOTE]
I'm pretty sure the floats are fine, wasn't it just the rounding functions or something that assumed perfect precision (which you can't get of course)

[DeadKiller987]

Fixin' page 8. I figured out that I had all my headers all along. Bloody Cydia intstalled them in the wrong folder :argh: . Also, turns out I have NCurses on my iPhone already.

[editline]7th June 2011[/editline]

Sorry for being such a dummy, but how do I use gcc? I do

gcc main.c draw.c

and it gives me

ld: library not found for -lSystem
collect2: ld returned 1 exit status

[esalaka]

You either want to do gcc main.c draw.c -o <output binary> or first compile both source files (gcc -c main.c && gcc -c draw.c)

[editline]7th June 2011[/editline]

Err, and then compile them into the output binary (gcc main.o draw.o -o <output binary>)

[DeadKiller987]

[QUOTE=esalaka;30306256]You either want to do gcc main.c draw.c -o <output binary> or first compile both source files (gcc -c main.c && gcc -c draw.c)

[editline]7th June 2011[/editline]

Err, and then compile them into the output binary (gcc main.o draw.o -o <output binary>)[/QUOTE]

I tried that. Same error.

[20k]

[QUOTE=DeadKiller987;30307050]I tried that. Same error.[/QUOTE]

well, unless im horribly wrong (which happens), its a linking error, and judging by the looks of the error you are missing a library of some description

which is a little weird as you havent actually specified linking anything :ohdear:

[editline]7th June 2011[/editline]

[QUOTE=ief014;30264810]If you're simply using a mask, I don't think you can. You're probably going to have to use images without antialiasing.[/QUOTE]

Well, the mask is the same for every image, so i think ill just parse the image when i load it and turn all the purple to transparent

[amazer97]

[QUOTE=Chris220;30301865]Writing a GUI system from scratch? Or using an existing library to make a GUI?[/QUOTE]

Writing one from scratch. The only library I'm using is SFML right now.

[Bambo.]

Hey guys, unsure of which way to go.

1) Stay with LOVE2D and Lua which i kinda know (ish)
2) Go to SFML and learn C++ (i know abit of C++ but hardly any, i know pointers thats about it)
3) Same as 2 but with Polycode

[Richy13]

[QUOTE=Bambo.;30309072]Hey guys, unsure of which way to go.

1) Stay with LOVE2D and Lua which i kinda know (ish)
2) Go to SFML and learn C++ (i know abit of C++ but hardly any, i know pointers thats about it)
3) Same as 2 but with Polycode[/QUOTE]

If you do go with C++ then stick with SFML, that said the hardest thing you will find with C++ is probably pointers so if you already know it then go ahead and try c++

[DeadKiller987]

[QUOTE=Icedshot;30308658]well, unless im horribly wrong (which happens), its a linking error, and judging by the looks of the error you are missing a library of some description

which is a little weird as you havent actually specified linking anything :ohdear:
[/QUOTE]

Man fuck Cydia. First I find two different include folders. Now about 5 lib folders :argh: Fuck this shit.

[Zeraux]

Can anybody recommend a good online book for C#?

[esalaka]

[QUOTE=DeadKiller987;30307050]I tried that. Same error.[/QUOTE]

Wait.

You installed all the libraries required to build this stuff, right? Sounds like your device doesn't have a dynamically linked libc or something

[editline]7th June 2011[/editline]

[QUOTE=DeadKiller987;30310361]Man fuck Cydia. First I find two different include folders. Now about 5 lib folders :argh: Fuck this shit.[/QUOTE]

Add everything to ld search path

-L<libdir> -L<another> or alternatively <waitamin>

[editline]7th June 2011[/editline]

How did you get such a fucked up install in the first place?

[Richy13]

Could someone that uses directX 9 have a look at this and tell me if its worht the buy?

[url]http://www.microsoft.com/mspress/books/5871.aspx[/url]

I mainly want to use the vertex buffer/shader approach, not the old depreciated methods.

[Laharlsblade]

[QUOTE=Tangara;30301644]heh[/QUOTE]

Yeah, I know, I'd rather not, but it's all we have in school and I'm taking a comp sci class, and I just want to be able to work on my stuff in and out of school. I plan on moving to cs5 as soon as school's out. Can anyone actually help me? Need more information?

[Fox-Face]

Alright, I have the following situation(using C#): I'm making a library, my design works like that: You create a object of type Core, inside the Core class there is this method: AddElement(object) this will add the object to a generic List that will be looped and updated by the Core. The problem is: I want to have a local object and then add that to that List, but when I change that local object the changes must be reflected on the object that the Core keeps track of. I'd use a pointer in C++, but in C# you can't have managed objects pointers, what would be the best method to achieve that?

EDIT: Nevermind, seems like classes are passed by reference in .NET

[Niteshifter]

I'm curious about how I can stop my makefile to compile things after I use make clean. When I have make clean do it's job and there's a file in the source code that's changed since the last compile, it will compile it into the object file, then remove it. Here's an example of a makefile that I have that does that:

USE = -lsfml-system -lsfml-window -lGLU -lGL
OBJECTS = main.o Gen.o Graphics.o

maze : $(OBJECTS)
        g++ -o maze $(OBJECTS) $(USE)

main.o Gen.o : Gen.h
Gen.o Graphics.o : Graphics.h

.PHONY : clean
clean : $(OBJECTS)
        rm -f maze $(OBJECTS)

On a side note: I couldn't use tab indenting for the script since Chromium doesn't seem to let me. Is there a way to get the tab button to indent instead of leave the text box?

[Wyzard]

Don't make the "clean" target depend on $(OBJECTS). That dependency tells make that all the $(OBJECTS) must be built and up-to-date before the "clean" target's command runs.

[Niteshifter]

[QUOTE=Wyzard;30322114]Don't make the "clean" target depend on $(OBJECTS). That dependency tells make that all the $(OBJECTS) must be built and up-to-date before the "clean" target's command runs.[/QUOTE]

I see, thanks. I'm still fairly new with makefiles and just know how to bring out basic ones.

[Muffinz!]

Anyone knows how i could grab sf::Vector2f from Points.begin()?
I have tried doing something like this:

sf::Vector2f *v = Points.begin()->pos;

But it obviously does not work.

Inside header file:

struct SnakePart
{
	sf::Vector2f pos;
	sf::Shape line;
};

typedef iQueue<SnakePart *> pList;

class Snake
{
private:
	pList Points;
...

P.S. iQueue is std::queue with iterator.

[sim642]

[QUOTE=Muffinz!;30323547]Anyone knows how i could grab sf::Vector2f from Points.begin()?
I have tried doing something like this:

sf::Vector2f *v = Points.begin()->pos;

[b]But it obviously does not work.[/b]

Inside header file:

struct SnakePart
{
	sf::Vector2f pos;
	sf::Shape line;
};

typedef iQueue<SnakePart *> pList;

class Snake
{
private:
	pList Points;
...

P.S. iQueue is std::queue with iterator.[/QUOTE]

What doesn't work? Where is the problem?

EDIT:
Mabye this does:

sf::Vector2f *v = &(Points.begin()->pos);

[Muffinz!]

[QUOTE=sim642;30324221]Mabye this does:

sf::Vector2f *v = &(Points.begin()->pos);

[/QUOTE]
This is my problem:
[img]http://i.imgur.com/r1uy3.png[/img]

[editline]8th June 2011[/editline]

Problem solved, thanks to Chris220.
It had to be: [quote]sf::Vector2f v = (*Points.begin())->pos;[/quote]

[SyntheticGod]

How would I go about applying gravity to a sprite in XNA?
I have my sprite ricochet off walls like this:
[url]http://dl.dropbox.com/u/3655315/Bounce%20is.png[/url]

But I want to get it to bounce like this:
[url]http://dl.dropbox.com/u/3655315/Bounce%20want.png[/url]

Here's the code.

namespace BouncingBall
{
    class Ball
    {
        Vector2 Position;

        Texture2D Texture;

        int StageWidth, StageHeight;
        int velX = 5;
        int velY = 7;

        public Ball(Texture2D balltex, Vector2 ballpos, int bstageWidth, int bstageHeight)
        {
            Position = ballpos;
            

            Texture = balltex;

            StageWidth = bstageWidth;
            StageHeight = bstageHeight;
        }
        public void Update(GameTime gameTime)
        {
            Position.X += velX;
            Position.Y += velY;

            if (Position.X + Texture.Width >= StageWidth)
            {
                velX = -velX;
            }
            else if(Position.X <= 0)
            {
                velX = -velX;
            }

            if (Position.Y + Texture.Height >= StageHeight)
            {
                velY = -velY;
            }
            else if (Position.Y <= 0)
            {
                velY = -velY;
            }

[Muffinz!]

You could try:
Change velocities to floats (or doubles if you want)

float velX = 5f;
float velY = 7f;

Then inside update function add:

velY += 0.9f;

I'm not sure how it will look like, but it should work.

[SyntheticGod]

It works but then the sprite starts glitching out and flying up :v:. Thanks a lot, I'll work on fixing this thing.