Topics

1

General discussions / How to use SFML on git

« on: January 22, 2017, 06:20:06 pm »

Hi,

this topic may be a bit SFML-unrelated, so please forgive me.

How should I use git in a cross-platform git project?

My 3 ideas

• Copy the download for the specific compiler into the repository
  Problems: The graph shows 22k additions on the first commit, which are not mine. The library is OS/Compiler-specific
• Create a separate repository for SFML and put the download in there and use it as a submodule in your actual repo
  This fixes Problem 1, but the second one still remains
• Use the official SFML repo as a submodule
  Problem: How do you use SFML in it's raw state? Do you have to add all necessary cpp files to the makefile?

2

Graphics / Is the Outline Inside or Outside the Object?

« on: November 25, 2016, 05:22:32 pm »

Let's say we have an

sf::CircleShape c(10)

If we now set

c.setOutlineThickness(5)

is the Radius of the Circle 10 or 15?

Thanks, Kim

3

General / Converting sf::Event::MouseMoveEvent to sf::Vector2i

« on: November 14, 2016, 02:42:43 pm »

Let's say we have

sf::Vector2i v;

We get

error: conversion from 'sf::Event::MouseMoveEvent' to non-scalar type 'sf::Vector2i {aka sf::Vector2<int>}' requested

when doing

v = event.mouseMove;

The following works fine, but is ugly

v = sf::Vector2i(event.mouseMove.x, event.mouseMove.y)

There also is no explicit conversion.

Is there a nicer way of doing this?

Thanks,
Kim

PS: A bit off-topic, but why does Vector2 have no parenthesis overload?

4

General / Does it matter if a function is called within or outside the event block?

« on: November 14, 2016, 02:29:58 pm »

Do the following code snippets do the exact same thing?

while (window.isOpen)
{
        sf::Event event;
        while (window.pollEvent(event))
        {
                if (event.type == sf::Event::mouseButtonPressed)
                {
                        // Do something here
                }
       
        } // Poll Events

} // Game Loop
 

bool bolean;

while (window.isOpen)
{
        bolean = false;

        sf::Event event;
        while (window.pollEvent(event))
        {
                if (event.type == sf::Event::mouseButtonPressed)
                {
                        boolean = true;
                }
       
        } // Poll Events

        if (boolean)
        {
                // Do the same thing here
        }

} // Gameloop
 

I am asking this, because you mentioned some sort of delay and timing in my last question and I want to know, if I am understanding this right, so sorry if this question seems stupid.

Thanks,
Kim

5

General / Mouse::isButtonPressed(Mouse::Left) vs (event.mouseButton.button == Mouse::Left)

« on: November 05, 2016, 08:27:37 pm »

Let's say we have the event handler with the

sf::Event event

and we are looking for

event.type == Event::MouseButtonPressed

and only if that is true, we are trying to find out which button is actually being pressed,

does it make a difference if we do

event.mouseButton.button == Mouse::Left

or

Mouse::isButtonPressed(Mouse::Left)

or are those identical in that situation?

6

General / std::function from sf::Mouse::isButtonPressed and sf::Mouse::getPosition

« on: October 23, 2016, 06:03:03 pm »

Hi,

I am trying to understand std::functions, so I tried the following:

auto bp = sf::Mouse::isButtonPressed;

and that works fine.

I tried the something similar:

auto gp = sf::Mouse::getPosition;

and it gave me the error

unable to deduce 'auto' from 'sf::Mouse::getPosition'

when I switched

auto

to

std::function<sf::Vector2i(const sf::Window&)>

I got

error: conversion from '<unresolved overloaded function type>' to non-scalar type 'std::function<sf::Vector2<int>(const sf::Window&)>' requested

What am I doing wrong? I am sure, I am misunderstanding this whole concept, but I find it wierd, that the first one worked without a problem and the other one didn't. Is it because of the overload?

7

General / Where do I get MinGW 6.1.0?

« on: October 05, 2016, 06:04:35 pm »

Hi,

since I got an error yesterday which resulted from the incompatablillity of my G++ version in MinGW (5.3.0) and the version SFML was made for (6.1.0), I updated my MinGW suite. I still have 5.3.0, though and I can't find the download for 6.1.0, so I wanted to ask where you got it from, to compile it for that version.

Thanks,
Kim

8

General discussions / How to compile SFML on Windows with GCC in cygwin?

« on: April 09, 2015, 09:09:14 pm »

Hi!

I have installed cygwin with GCC. I have successfully compiled a few programs, so it works. But niw I wanted to compile my first SFML project. Which version do I have to download? And do I have to follow thesehttp://www.sfml-dev.org/tutorials/2.0/start-linux.php instructions or are there specific ones?

Thanks for your help!

9

General discussions / Where can I find the changelog for new SFML versions?

« on: December 27, 2014, 10:00:10 pm »

There is just a download for SFML 2.2, but no changelog. Where is it?

10

General / How to avoid "the white square problem"?

« on: December 27, 2014, 09:47:22 pm »

I am experiencing  "the white square problem" (http://www.sfml-dev.org/tutorials/2.0/graphics-sprite.php#the-white-square-problem). I have 2 std::vectors, one sf::Texture and one sf::Sprite, using that Texture. Both are being declared, the texture is being loaded from a file and the Sprite is using the texture, all in a while loop. So how am I supposed to make the texture last outside the while loop. what about

sf::Texture *tex = new sf::Texture

or something like that? I have never used that before and I don't really know what it does and how to use it. What is very strange, is that some Sprites work! the first 2 don't, but the third for example does. And some of the other sprites have wrong textures. But the vectors are being declared outside the loop, so I am able to draw and compile everything just fine.

Thank you for your help!

11

Feature requests / sf::Texture::Texture(std::string file)

« on: December 23, 2014, 02:13:23 pm »

Please make a constructor, that has sf::Texture::loadFromFile(string file) built in.

Thank, you, SFML is great! 

12

General / sf::font::loadFromFile is spamming the console (Video)

« on: September 03, 2014, 11:24:50 am »

I have recorded a video

about what is happening, when I use font.loadFromFile. Code is in the video.
I am sure, that it's the font.loadFromFile, because I tried deleting everything else, and it still didn't work.
It doesn't even work in other projects.
I am using VS 2013.

Am I doing something wrong?

13

General / How do I get the RenderWindow in another Class?

« on: January 09, 2014, 04:04:02 pm »

Hello, I wanted to ask how I get the RenderWindow to another Class, do i have to make getter-Functions or how can I sove it with Pointers?

14

General / Whats the difference between vector2f, vector2i, etc.

« on: January 08, 2014, 08:19:13 pm »

Hello, I just wanted to know if there's any difference between all verctor2's.

15

Graphics / Test if any object is on a location

« on: December 03, 2013, 04:28:12 pm »

Hello!

I have 2 Integers. one for x Location and one for y. And i want a boolean to be true whenever any object is on those coordinates.



Sorry for my bad english