Topics

1

General / Supporting multiple resolutions

« on: April 19, 2015, 02:35:03 pm »

Hello, I'm tying to write a game and I found problem.Supporting multiple resolutions.

• What is the best way to do this?

I created an implementation but it had a problem.
I created a small sized sf::View(800x600) and scaled it into a large screen(1366x768)
But during the up scaling I noticed that drawable objects such as sf::CircleShape were crisp while sf::Text was pixelated.

(click to show/hide)

Screenshot in attachments contains view of 200x200 scaled to window of approximately 1350x750

If this is a good implementation then

• Why does this happen?
• How do I fix it?

2

SFML website / Possible Typo in Website(SFML Changelog)

« on: April 18, 2015, 09:15:44 am »

In http://www.sfml-dev.org/changelog.php there seems to be a typo in Changelog > SFML 2.2 > Window > Features > 3^rd point.
I do not believe FreeBDS exists and it should have been FreeBSD.https://www.freebsd.org/
Correct me if I'm wrong.

(click to show/hide)

[FreeBDS] Joystick support (#477)

3

Graphics / Question in sf::Text

« on: April 16, 2015, 02:56:45 pm »

I created sf::Text and used setPosition(50,50);.
but when i give getGlobalBounds(); I interestingly get the following
If you notice the attachment you see that top is showing 58 rather than 50.

• Where is this extra 8 pixels coming from?
• How to remove them?

4

General / error: ‘begin’ was not declared in this scope in vertexarray

« on: April 14, 2015, 10:55:53 am »

Im learning c++ 11 and i found this error

#include<SFML/Graphics.hpp>

int main()
{
        sf::VertexArray a;
        for(auto& b:a)
        {
       
        }
}
 

error when compiled with GCC

Code: [Select]

g++ test.cpp -o test -lsfml-graphics -lsfml-window -lsfml-system -std=c++11
test.cpp: In function ‘int main()’:
test.cpp:6:14: error: ‘begin’ was not declared in this scope
  for(auto& b:a)
              ^
test.cpp:6:14: note: suggested alternative:
In file included from /usr/include/c++/4.9/bits/basic_string.h:42:0,
                 from /usr/include/c++/4.9/string:52,
                 from /usr/include/c++/4.9/bits/locale_classes.h:40,
                 from /usr/include/c++/4.9/bits/ios_base.h:41,
                 from /usr/include/c++/4.9/ios:42,
                 from /usr/include/c++/4.9/ostream:38,
                 from /usr/include/SFML/System/Err.hpp:32,
                 from /usr/include/SFML/System.hpp:34,
                 from /usr/include/SFML/Window.hpp:32,
                 from /usr/include/SFML/Graphics.hpp:32,
                 from test.cpp:1:
/usr/include/c++/4.9/initializer_list:89:5: note:   ‘std::begin’
     begin(initializer_list<_Tp> __ils) noexcept
     ^
test.cpp:6:14: error: ‘end’ was not declared in this scope
  for(auto& b:a)
              ^
test.cpp:6:14: note: suggested alternative:
In file included from /usr/include/c++/4.9/bits/basic_string.h:42:0,
                 from /usr/include/c++/4.9/string:52,
                 from /usr/include/c++/4.9/bits/locale_classes.h:40,
                 from /usr/include/c++/4.9/bits/ios_base.h:41,
                 from /usr/include/c++/4.9/ios:42,
                 from /usr/include/c++/4.9/ostream:38,
                 from /usr/include/SFML/System/Err.hpp:32,
                 from /usr/include/SFML/System.hpp:34,
                 from /usr/include/SFML/Window.hpp:32,
                 from /usr/include/SFML/Graphics.hpp:32,
                 from test.cpp:1:
/usr/include/c++/4.9/initializer_list:99:5: note:   ‘std::end’
     end(initializer_list<_Tp> __ils) noexcept
     ^

error when compiled with clang

Code: [Select]

clang++ test.cpp -o test -lsfml-graphics -lsfml-window -lsfml-system -std=c++11
test.cpp:6:13: error: invalid range expression of type 'sf::VertexArray'; no
      viable 'begin' function available
        for(auto& b:a)
                   ^~
1 error generated.


5

Window / Alt tab not working in fullscreen

« on: April 03, 2015, 01:37:49 pm »

In linux(Ubuntu 14.10) some keys dont work in full screen such as alt+tab, volume keys, brightness keys. How to enable them??

6

General / Differenciating mouse click and mouse drag

« on: May 04, 2014, 02:02:02 pm »

I want to perform different actions for mouse clicked and mouse dragged.
mouse drag means click and move mouse.

7

General / Transform Image

« on: May 01, 2014, 08:07:13 am »

Is there some way to lighten an image or texture?
what im to do is make a sprite more white when mouse is hovered over it.

8

General / Drawing outside window

« on: April 30, 2014, 08:01:48 am »

Does drawing outside the window give a performance hit?
is it worth it to check whether an object is visible then draw it?

9

General / Access docs

« on: April 30, 2014, 07:14:22 am »

I compiled and installed latest sfml on Ubuntu.
I had checked build docs in cmake.
How do you access sfml docs??

10

General / SFML static linking error (Cross compile)

« on: April 14, 2014, 06:19:56 pm »

I have compiled several games natively in Ubuntu using sfml 2.1.
Today i tried to cross compile the tutorial program using code blocks.
Im using the mingw compiler.
Here are the steps i followed correct me if im wrong.
first i compiled and tried to link to linux libs
error
so i downloaded mingw windows version of SFML from downloadpage.
it compiled but it while running it said that i needed libgcc_s_sjlj-1.dll,sfml-graphics-2.dll,sfml-system-2.dll and more libraries.
so i thought linking statically would be the answer and here i am.
Im testing using wine.