Messages

1

Window / sf::RenderWindow returns NULL pointer

« on: October 04, 2020, 05:04:40 am »

SFML forum,
 Windows 7

 I'm using SFML-2.5.1 with Visual Studio 2017.
 My program builds without any errors but I get an exception thrown because
 sf::RenderWindow window(sf::VideoMode(200, 200), "SFML works!");
 returns a NULL pointer.  Here's the entire program:

#include <SFML\Graphics.hpp>

int main()
{
    sf::RenderWindow window(sf::VideoMode(200, 200), "SFML works!");
   window.close();
   return 0;
}

 I must be missing something.

jerryd

2

Window / Re: Passing sheetRect to a function

« on: August 11, 2020, 08:20:06 pm »

Raynobrak,
 Definitely have the sheetRect sizes set.

 I discovered I was passing the sprite wrong.

 Didn't see a way to mark this as "Solved".

 Thanks for the reply.
jerryd

3

Window / Passing sheetRect to a function

« on: August 10, 2020, 09:15:34 pm »

SFML forum,
 I think this would related to a window problem.

 I'm using the sheetRect command successfully in the main flow of my program
 but when I pass it to a function it is grayed out and doesn't work.  The
 compiler doesn't complain and everything runs Ok.

here's the function declaration:
void drawToWindow(sf::RenderWindow &window, sf::IntRect &sheetRect);

here's the function call:
  drawToWindow(window, sheetRect);

here's the function:
void drawToWindow(sf::RenderWindow &window, sf::IntRect &sheetRect)
{
   sheetRect.top = 0;
   sheetRect.left = 0;
   suits.setTextureRect(sheetRect);
   suits.setPosition(50,1);

   window.clear(sf::Color::Green);
   window.draw(suits);
   window.draw(text);
   window.display();
}

The window commands work but not the sheetRects are grayed out?
As I stated this all works outside of the function.

jerryd

4

Graphics / rectSourceSprite out of scope

« on: August 09, 2020, 01:26:09 am »

SFML forum,

 I'm doing some sprite displaying in a function.
 I can do:
 sprite.setPosition(x,y);
 window.draw(sprite);

 but the compiler doesn't like:
 rectSourceSprite.left = 213;

 I have used all this command successfully outside of the function
 but the error message seems to indicate it's out of scope.

 I tried:
 sf::rectSourceSprite.left = 213;
 sprite.rectSourceSprite.left = 213;
 but they don't satisfy the compiler.

Any suggestions?
Jerry D

5

Window / RenderWindow Screen

« on: August 07, 2020, 07:09:18 pm »

sfml forum,
 I know there is a RenderWindow Screen command but I can't find any
 documentation about it.

 Anyone know if it's still valid and where I can read about it.

Jerry D

6

Graphics / Pixel Color

« on: July 04, 2017, 04:01:45 am »

SFML forum,

 How can I read the color of a specific pixel on the screen?

jerryd

7

General / Re: Cannot open include file: 'SFML/Graphics.hpp': No such file or directory

« on: July 04, 2017, 03:19:26 am »

 As Laurent said we need more information.

8

General / Re: [SOLVED]can't open sfml-window-d-2.dll

« on: July 04, 2017, 03:17:08 am »

 I finally got this to work.

 I did add sfml-window-d-2.dll to the project folder but I had to
 add all the dlls from SFML\bin.

jerryd

9

General / Re: can't open sfml-window-d-2.dll

« on: July 03, 2017, 05:38:54 am »

Gleade,
 Thanks for the reply but it didn't work.

jerryd

10

General / [SOLVED]can't open sfml-window-d-2.dll

« on: July 03, 2017, 04:51:37 am »

SFML forum,

 SFML 2.4.2   Visual Studio 2017

 I have one project working and have started new one.

 I can build the new project with no errors but when I try to
 run it I get the error message: "The program can't start because
 sfml-window-d-2-dll is missing".

 This dll exists in C:\SFML-2.4.0\bin and I have checked the
 properties and they are all identical to my working project.

 What am I missing?

jerryd

11

Graphics / [SOLVED]One sprite for all my objects

« on: June 24, 2017, 05:17:49 am »

SFML forum,
 
 I'm using SFML but this might be a C++ OOP question.

 I want to use a sprite from a class in all my objects:

class Sprite
{
public:
    Sprite() {};

    sf::Texture MySprite;
    sf::Sprite sprite;

    void Load_Sprite()
    {
        if(!MySprite.loadFromFile("C:/sprites/MySprite.png"))
        { cout << " Texture Loading Error" << endl; system("pause"); }
        sprite.setTexture(MySprite);
    }
};
 

 But I have go use one of the objects to load the sprite so now it
 belongs to that object.  I would like to make the sprite static so
 I only need one and use it in every object.

 Any suggestions on how to do that?
Jerryd

12

General / Re: How to load a png file for View

« on: June 15, 2017, 07:11:50 am »

eXpl0it3r,

 Thanks for the reply.

 I loaded my background as a Texture and made it a sprite

 The window size is 600,600 so I used the command:
 sf::View view(sf::Vector2f(600, 600), sf::Vector2f(300, 300));

 At one point in my program I used the command:
 view.move(100, 0);
 but nothing happened.

 How do I tie the sprite to the view?  Or do I have this all wrong?

13

General / How to load a png file for View

« on: June 15, 2017, 03:59:19 am »

SFML forum,
 I'm trying to figure out how to use View.

 I have read most of the documentation but I don't see
 how to load a png file that will be the View.  I tried to load
 it as I would a Texture but just got a compile error.

 sf::View view;
 if (!view.loadFromFile("C:/sprites/buildings.png"))
 { cout << " view Loading Error" << endl; system("pause"); }

 How do I do this?

jerryd

14

Graphics / Re: Shape Functions not working in classes.

« on: June 11, 2017, 05:38:59 am »

Bonediggerninja,

 I don't know exactly what you are trying to do but initializing the
 shapes should be done with the object not inside the class.
 
 This will compile:

#include <SFML/Graphics.hpp>
#include <SFML\System.hpp>
#include <SFML\Window.hpp>

class player {
public:
        int the = 5; //Works
        sf::Font font; //Works
        sf::RectangleShape shape;
        sf::CircleShape circle;
};
int main()
{
    player player1;
    player1.circle.setRadius(50);
    player1.shape.setSize(sf::Vector2f(50, 50));
       
}
 

15

Graphics / Re: texture with VertexArray

« on: June 06, 2017, 07:26:31 am »

Hapax,

 Thanks I get it.

 My intention is to do it at the lowest possible level(Points).

 I now plot every pixel(Point) in the box and I am able to match
 every Point in the box with the corresponding point in the texture.
 The texture is large enough that I can expand and shrink the box
 over the full size of the window.  Amazingly it seems just as fast
 as when I was just drawing the edges.

 I looked all around this page but couldn't figure out how to make this as SOLVED.

jerryd