Topics

1

General / Compiling SFML with MinGW

« on: August 14, 2017, 02:07:13 am »

I am sorry but I am not sure if this is a problem specific to MinGW, CMake, or SFML but I thought I might try and ask here. I get errors while building SFML using MinGW.

1. ExtractSFML-2.4.2-sources.zip
2. Create build folder
3. cmake -G "MinGW Makefiles" ..
4. mingw-32-make

PS C:\libs\SFML-2.4.2\build> mingw32-make
Scanning dependencies of target sfml-system
[  1%] Building CXX object src/SFML/System/CMakeFiles/sfml-system.dir/Clock.cpp.obj
[  2%] Building CXX object src/SFML/System/CMakeFiles/sfml-system.dir/Err.cpp.obj
[  3%] Building CXX object src/SFML/System/CMakeFiles/sfml-system.dir/Lock.cpp.obj
[  3%] Building CXX object src/SFML/System/CMakeFiles/sfml-system.dir/Mutex.cpp.obj
[  4%] Building CXX object src/SFML/System/CMakeFiles/sfml-system.dir/Sleep.cpp.obj
[  5%] Building CXX object src/SFML/System/CMakeFiles/sfml-system.dir/String.cpp.obj
[  6%] Building CXX object src/SFML/System/CMakeFiles/sfml-system.dir/Thread.cpp.obj
[  7%] Building CXX object src/SFML/System/CMakeFiles/sfml-system.dir/ThreadLocal.cpp.obj
[  8%] Building CXX object src/SFML/System/CMakeFiles/sfml-system.dir/Time.cpp.obj
[  9%] Building CXX object src/SFML/System/CMakeFiles/sfml-system.dir/FileInputStream.cpp.obj
[ 10%] Building CXX object src/SFML/System/CMakeFiles/sfml-system.dir/MemoryInputStream.cpp.obj
[ 11%] Building CXX object src/SFML/System/CMakeFiles/sfml-system.dir/Win32/ClockImpl.cpp.obj
[ 12%] Building CXX object src/SFML/System/CMakeFiles/sfml-system.dir/Win32/MutexImpl.cpp.obj
[ 13%] Building CXX object src/SFML/System/CMakeFiles/sfml-system.dir/Win32/SleepImpl.cpp.obj
[ 14%] Building CXX object src/SFML/System/CMakeFiles/sfml-system.dir/Win32/ThreadImpl.cpp.obj
[ 15%] Building CXX object src/SFML/System/CMakeFiles/sfml-system.dir/Win32/ThreadLocalImpl.cpp.obj
[ 16%] Linking CXX shared library ..\..\..\lib\sfml-system-2.dll
[ 16%] Built target sfml-system
Scanning dependencies of target sfml-main
[ 17%] Building CXX object src/SFML/Main/CMakeFiles/sfml-main.dir/MainWin32.cpp.obj
[ 18%] Linking CXX static library ..\..\..\lib\libsfml-main.a
[ 18%] Built target sfml-main
Scanning dependencies of target sfml-window
[ 19%] Building CXX object src/SFML/Window/CMakeFiles/sfml-window.dir/Context.cpp.obj
[ 20%] Building CXX object src/SFML/Window/CMakeFiles/sfml-window.dir/GlContext.cpp.obj
[ 21%] Building CXX object src/SFML/Window/CMakeFiles/sfml-window.dir/GlResource.cpp.obj
[ 22%] Building CXX object src/SFML/Window/CMakeFiles/sfml-window.dir/Joystick.cpp.obj
In file included from c:\mingw\include\windows.h:48:0,
                 from C:/libs/SFML-2.4.2/src/SFML/Window/Win32/JoystickImpl.hpp:42,
                 from C:/libs/SFML-2.4.2/src/SFML/Window/JoystickImpl.hpp:83,
                 from C:/libs/SFML-2.4.2/src/SFML/Window/JoystickManager.hpp:32,
                 from C:\libs\SFML-2.4.2\src\SFML\Window\Joystick.cpp:29:
c:\mingw\include\winuser.h:3920:47: error: 'PTITLEBARINFO' has not been declared
 WINUSERAPI BOOL WINAPI GetTitleBarInfo (HWND, PTITLEBARINFO);
                                               ^~~~~~~~~~~~~
src\SFML\Window\CMakeFiles\sfml-window.dir\build.make:137: recipe for target 'src/SFML/Window/CMakeFiles/sfml-window.dir
/Joystick.cpp.obj' failed
mingw32-make[2]: *** [src/SFML/Window/CMakeFiles/sfml-window.dir/Joystick.cpp.obj] Error 1
CMakeFiles\Makefile2:227: recipe for target 'src/SFML/Window/CMakeFiles/sfml-window.dir/all' failed
mingw32-make[1]: *** [src/SFML/Window/CMakeFiles/sfml-window.dir/all] Error 2
Makefile:128: recipe for target 'all' failed
mingw32-make: *** [all] Error 2

I have made a Hello World c++ example and that compiled fine, but obviously the problem is inside winuser.h. I don't think this is a SFML bug, I think it is more likely that I setup my MinGW environment incorrectly. I have installed gcc, g++ and mingw32-make on my system, is there another component that needs to be installed? Any help would be appreciated

2

General / Outdated openGL?

« on: August 13, 2014, 06:04:30 pm »

Today I tried to test my game on my friends computer but we ran into a few errors.

his gfx card : gtx 650 ti boost



my shader...

uniform sampler2D texture;

uniform float distanceToMaxNoise = 1000.0;
uniform float startNoiseDistance = 5000.0;

uniform vec2 position = vec2(0,0);
uniform float random = 1.0;

highp float randFloat(vec2 co)
{
    highp float a = 12.9898;
    highp float b = 78.233;
    highp float c = 43758.5453;
    highp float dt= dot(co.xy ,vec2(a,b));
    highp float sn= mod(dt,3.14);
    return fract(sin(sn) * c);
}

void main()
{
        vec2 texCoord = gl_TexCoord[0].xy;
        vec2 randomVec = vec2(random);
        vec2 texCoordRandom = texCoord + randomVec;
    vec4 pixel = texture2D(texture, gl_TexCoord[0].xy);

        highp float randomNoise = randFloat(texCoordRandom);
        highp float randomLine = randFloat(texCoord.yy + randomVec);

        float distance = clamp(length(position) - startNoiseDistance, 0.0, distanceToMaxNoise);
        float noise = clamp(distance / distanceToMaxNoise, 0.0, 1.0);

        pixel = mix(pixel, vec4(randomNoise, randomNoise, randomNoise, 1.0), noise);

        if(randomLine < 0.02)
        {
                pixel = mix(pixel, vec4(0.0, 0.0, 0.0, 1.0), noise);
        }

        gl_FragColor = pixel;
}

from what i can tell #version 120 is from 2006 so does that mean his GFX card is outdated? If this happens on his computer i think its likely that other computers will experience the same problem. Is there something I can do that will automatically address the problem by prompting the user to update their drivers or something?

3

General / Error using view of a renderTexture

« on: August 08, 2014, 04:02:29 am »

Basically my game has a world in space and the ship should be able to move around in all direction (like asteroids), to keep the view focused on the player i set the center of the view being used on the renderTexture to the position of the player. after the center gets moved a certain distance lets say (-14000, 5000) or (300, 9000) the screen goes black and when i print out the coordinates of view.getCenter() it prints out (-1.#IND, -1.#IND)

In my finished product i would probably be limiting the distance the player could travel anyways, But i wanted to know if I'm using view.setCenter(); in a way that was not meant to be. 

Keep in mind drawing all my sprites to a renderTexture then drawing that to the window.

Please tell me if my description in not clear.

4

SFML projects / Asteroids (My first experience with SFML)

« on: July 04, 2014, 05:49:18 am »

I've been learning C++ for about two years now but I really didn't like learning all the in and outs of DirectX so I decided to give SFML a go. In short I love SFML and if your on the edge of deciding what graphics library to use, here's an example of what you can create within a few days. Enjoy my attempt at recreating a retro game i never really played before

https://www.dropbox.com/sh/k8mcqxy2gukiuay/AADa3mw9AAzkrSFcWpNAsqKSa