Messages

1

Graphics / Re: Load a white rectangle using Game headerfile

« on: March 17, 2019, 03:50:11 am »

Thanks a lot for all the replies.
I am sorry that I post a trivial question, I am new to SFML. Next time, I will pay attention to the format and official document.
I solved this problem by adding static to the ResourceHolder:

static ResourceHolder<sf::Texture, Textures::ID> textures;

Anyway, thanks for your help.

2

Graphics / Load a white rectangle using Game headerfile

« on: March 16, 2019, 01:31:17 pm »

I followed the book SFML Game Development, and find problem in doing the chapter 2, about resources management.

Here I used:
 

#include "Game.h"
#include <SFML/Graphics.hpp>
void main()
{
        Game game;
        game.run();
}
 

While in the loading function, it turns out rendering a white rectangle.

Game.h

#pragma oncE
#include <SFML/Graphics.hpp>
#include <ResourceHolder.hpp>
#include <iostream>
#include <assert.h>

class Game
{
public:
        Game();
        ~Game();
        void run();
private:
        void processEvents();
        void update(sf::Time deltaTime);
        void render();
        void handlePlayerInput(sf::Keyboard::Key key, bool isPressed);
private:
        sf::Sprite player;
        sf::RenderWindow window;
        sf::Texture playerTexture;
        bool pIsMovingUp= false;
        bool pIsMovingDown = false;
        bool pIsMovingLeft = false;
        bool pIsMovingRight = false;
};
 

Game.cpp

Game::Game()
        : window(sf::VideoMode(800, 600), "Simulator", sf::Style::Default)
        , player()
{
        // window.setFramerateLimit(25);
        //Try to load resources
        ResourceHolder<sf::Texture, Textures::ID> textures;
        try
        {
                textures.load(Textures::MainRole, "Media/textures/a.png");
        }
        catch (std::runtime_error& e)
        {
                std::cout << "Exception: " << e.what() << std::endl;
        }
       
        player.setOrigin(100.0f, 100.0f);
        player.setPosition(400.0f, 300.0f);
        player.setTexture(textures.get(Textures::MainRole));
       
}
 

If I use Game class to run the program, a white rectangle will be the result.
However, when I copy the source code from the book's github, it is OK. And the source code is using main.cpp to run the whole program. Here's the github link.
https://github.com/SFML/SFML-Game-Development-Book/tree/master/02_Resources