Messages

1

General / Re: Modify textures stored in vector

« on: June 25, 2018, 04:14:10 pm »

I finally made it work with this:

Code: [Select]


#include <vector>
#include "Test.h"

int main()
{

    sf::VideoMode DesktopMode = sf::VideoMode::getDesktopMode();
    sf::RenderWindow window;
    window.create(DesktopMode,"The Game", sf::Style::Fullscreen);
    Test fleetButton(sf::Vector2f(500,500),"TextA");
    std::vector<Test*> listOfButtons;
    listOfButtons.push_back(&fleetButton);

    // run the program as long as the window is open
    while (window.isOpen())
    {
        // check all the window's events that were triggered since the last iteration of the loop
        sf::Event event;
        while (window.pollEvent(event))
        {
            // on regarde le type de l'évènement...
            switch (event.type)
            {
            // fenêtre fermée
            case sf::Event::Closed:
                window.close();
                break;

            // touche pressée
            case sf::Event::KeyPressed:
                return 0;
                break;

            // on ne traite pas les autres types d'évènements
            default:
                break;
            }
            if (event.type == sf::Event::MouseButtonPressed)
            {
                if (event.mouseButton.button == sf::Mouse::Left)
                {

                    listOfButtons[0]->setText("Heyy");

                }
            }

        }
        window.clear(sf::Color::Black);
        window.draw(*listOfButtons[0]->getSprite());
        window.draw(*listOfButtons[0]->getText());
        window.display();

    }
}


I shoud just have initialized the vector like this:

Code: [Select]

std::vector<Test*> listOfButtons;

and not like this:

Code: [Select]

std::vector<Test> listOfButtons;

even if I don't really know why ^^

Thank you!

2

General / Re: Modify textures stored in vector

« on: June 25, 2018, 02:39:01 pm »

I have made now a Test class, which is a minimalist Button class with just a texture and a text on it.

Test.h :

Code: [Select]


#ifndef TEST_H
#define TEST_H
#include <string>
#include <SFML/Graphics.hpp>


class Test
{
public:
    Test(sf::Vector2f location,std::string tstring);
    sf::Sprite* getSprite();
    sf::Text * getText();
    void setText(std::string newText);

private:
    sf::Font font;
    sf::Sprite normal;
    sf::Sprite clicked;
    sf::Sprite* currentSpr;
    sf::Text textOnButton;
    sf::Text* normalText;
    int middleX;
    int middleY;
    int characterSize;
    sf::Texture simplePic;
    sf::Texture simplePicClicked;

};

#endif // TEST_H


Test.cpp :

Code: [Select]


#include "Test.h"


Test::Test(sf::Vector2f location,std::string tstring)
{
    simplePic.loadFromFile("button.png");
    this->font.loadFromFile("arial.ttf");
    simplePicClicked.loadFromFile("buttonClicked.png");
    normal.setTexture(simplePic);
    clicked.setTexture(simplePicClicked);
    this->currentSpr=&this->normal;
    this->normal.setPosition(location);
    this->clicked.setPosition(location);
    if((25*tstring.length()) > simplePic.getSize().x)
    {
        characterSize = ((simplePic.getSize().x) / tstring.length());
    }
    else
    {
        characterSize = 25;
    }
    textOnButton.setFont(font);
    textOnButton.setCharacterSize(characterSize);
    textOnButton.setStyle(sf::Text::Bold);
    textOnButton.setString(tstring);
    textOnButton.setString(tstring);
    middleX = (currentSpr->getPosition().x  + (simplePic.getSize().x / (characterSize*tstring.length()))) + (simplePic.getSize().x - textOnButton.getGlobalBounds().width)/2;
    middleY = (currentSpr->getPosition().y  + (simplePic.getSize().y / 3));
    textOnButton.setPosition(middleX,middleY);
    this->normalText=&this->textOnButton;

}

sf::Sprite* Test::getSprite()
{
    return currentSpr;
}

sf::Text* Test::getText()
{

    return normalText;
}

void Test::setText(std::string newText)
{
    textOnButton.setString(newText);
}


And finally the main :

Code: [Select]


#include <vector>
#include "Test.h"

int main()
{

    sf::VideoMode DesktopMode = sf::VideoMode::getDesktopMode();
    sf::RenderWindow window;
    window.create(DesktopMode,"The Game", sf::Style::Fullscreen);
    Test fleetButton(sf::Vector2f(500,500),"TextA");
    std::vector<Test> listOfButtons;
    listOfButtons.push_back(fleetButton);

    // run the program as long as the window is open
    while (window.isOpen())
    {
        // check all the window's events that were triggered since the last iteration of the loop
        sf::Event event;
        while (window.pollEvent(event))
        {
            // on regarde le type de l'évènement...
            switch (event.type)
            {
            // fenêtre fermée
            case sf::Event::Closed:
                window.close();
                break;

            // touche pressée
            case sf::Event::KeyPressed:
                return 0;
                break;

            // on ne traite pas les autres types d'évènements
            default:
                break;
            }
            if (event.type == sf::Event::MouseButtonPressed)
            {
                if (event.mouseButton.button == sf::Mouse::Left)
                {

                    fleetButton.setText("Heyy");

                }
            }

        }
        window.clear(sf::Color::Black);
        window.draw(*fleetButton.getSprite());
        window.draw(*fleetButton.getText());
        window.display();

    }
}


We can notice here that fleetButton sets the text to "heyy" correctly (like the 2 pictures I sent earlier).
However, if I replace fleetButton by listOfButtons[ 0 ], like here:

Code: [Select]


#include <vector>
#include "Test.h"

int main()
{

    sf::VideoMode DesktopMode = sf::VideoMode::getDesktopMode();
    sf::RenderWindow window;
    window.create(DesktopMode,"The Game", sf::Style::Fullscreen);
    Test fleetButton(sf::Vector2f(500,500),"TextA");
    std::vector<Test> listOfButtons;
    listOfButtons.push_back(fleetButton);

    // run the program as long as the window is open
    while (window.isOpen())
    {
        // check all the window's events that were triggered since the last iteration of the loop
        sf::Event event;
        while (window.pollEvent(event))
        {
            // on regarde le type de l'évènement...
            switch (event.type)
            {
            // fenêtre fermée
            case sf::Event::Closed:
                window.close();
                break;

            // touche pressée
            case sf::Event::KeyPressed:
                return 0;
                break;

            // on ne traite pas les autres types d'évènements
            default:
                break;
            }
            if (event.type == sf::Event::MouseButtonPressed)
            {
                if (event.mouseButton.button == sf::Mouse::Left)
                {

                    listOfButtons[0].setText("Heyy");

                }
            }

        }
        window.clear(sf::Color::Black);
        window.draw(*listOfButtons[0].getSprite());
        window.draw(*listOfButtons[0].getText());
        window.display();

    }
}


When I click, the text stays the same

3

General / Re: Modify textures stored in vector

« on: June 25, 2018, 12:01:02 pm »

Thanks for your answer, in fact I have been drawing the fleetButton and not listOfButtons[0].

However, I have put

Code: [Select]

window.draw(*listOfButtons[0].getSprite());
window.draw(*listOfButtons[0].getText());

instead now, and still nothing :/ .

Does that mean that listOfButton[0] (modified after the loop) gets destroyed when the for loop ends?

4

General / Re: Modify textures stored in vector

« on: June 25, 2018, 11:03:05 am »

The problem is that there no error message at all from the compiler.

Here are some screenshots with this piece of code:

Code: [Select]

if (event.type == sf::Event::MouseButtonPressed)
            {
                if (event.mouseButton.button == sf::Mouse::Left)
                {
                   
                   fleetButton.setText("Heyy");

                }
            }


Before clicking:



After clicking:



It works perfectly fine here ^^

However, if I put now the Button object in a vector and call setText from it,

Code: [Select]

std::vector<Button> listOfButtons;
listOfButtons.push_back(fleetButton);

and then

Code: [Select]

if (event.type == sf::Event::MouseButtonPressed)
            {
                if (event.mouseButton.button == sf::Mouse::Left)
                {
     
                    for(auto &i : listOfButtons)
                    {

                          i.setText("heyy");
                       
                    }

                }
            }

When I click, the text on the button does not change anymore, while it should be "hey". I'm really stuck here since I don't know where the problem comes from ^^'.

Thanks for the help

5

General / Re: Modify textures stored in vector

« on: June 25, 2018, 10:40:48 am »

It is really confusing since fleetButton.setText("heyy"); works perfectly but once in a vector and called with listOfButtons [ i ].setText("heyy"); it doesn't work anymore.. Does it have something to do with pointers maybe?

I also have tried this way:

for(auto &i : listOfButtons)
                    {

                        if(i.checkClick(sf::Mouse::getPosition().x,sf::Mouse::getPosition().y))
                        {

                            i.setText("heyy");

                        }
                    }

But still nothing.

6

General / Re: Modify textures stored in vector

« on: June 25, 2018, 12:29:17 am »

listOfButtons.setText("Hey");

That's not how you access elements in a vector.

The [ i ] seemed to have disappeared in my message lol, I mean

listOfButtons [ i ].setText of course

7

General / Modify textures stored in vector

« on: June 24, 2018, 06:54:21 pm »

Hi everyone,

I made a kind of "Button" class that is composed of a sprite and a text on it.

One of the functions of the class is the setText function that just set a new text on the button:

void Button::setText(std::string newText){
    textOnButton.setString(newText);
}

It actually works in the main():

fleetButton.setText("Heyy") for example works and the new text of the button fleetButton becomes "Heyy".

However, I would like to store all my future button in a vector.

std::vector<Button> listOfButtons;
listOfButtons.push_back(fleetButton);

However, the setText doesn't work anymore if I use it like this :

for(int i =0; i<listOfButtons.size();i++){
        listOfButtons[i].setText("Hey");
 }

In fact, the text doesn't change.

It's the same for the setTexture function that I have.

Thanks for the help ^^