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General / sf::Sprite undefined / no default value

« on: March 23, 2025, 04:02:49 pm »

Hi,
im pretty new to sfml. i want to get used to classes and i follow the book "LearnByExample". Since its an older book the syntax is flawed.

Trying to follow the examples in the book i want to follow spliting everything into different classes. But how to initiate the sprite? if i anounce sf::sprite sprite in header i get an error for it not having a default value. and if i dont anounce it its not defined for the other functions.

Header:

#pragma once
#include <SFML/Graphics.hpp>
#include "Window.h"

class Game {
public:
        Game();
        ~Game();

        void HandleInput();
        void Update();
        void Render();
        void GetWindow();
       

private:
        sf::Texture m_mushroomTexture;
        //sf::Sprite m_mushroom;
        void MoveMushroom();
        Window m_window;
        sf::Vector2f m_increment;

#include "Game.h"
#include <SFML/Graphics.hpp>

Game::Game() : m_window("Chapter 2", { 800, 600 }) {

   m_mushroomTexture.loadFromFile("resources/smw_mushroom.png");
   sf::Sprite m_mushroom(m_mushroomTexture);
   sf::Vector2u size = m_mushroomTexture.getSize();
   m_mushroom.setOrigin({size.x / 2, size.y / 2});
   m_increment = sf::Vector2f{ 4, 4 };
}

Game::~Game()
{
}

void Game::HandleInput()
{
}

void Game::Update() {
   m_window.Update();
   MoveMushroom();
}

void Game::Render() {
   m_window.BeginDraw();  
   m_window.Draw(m_mushroom);      //undefine
   m_window.EndDraw();      
}

void Game::GetWindow()
{
}

void Game::MoveMushroom() {
   sf::Vector2u l_windSize = m_window.GetWindowSize();
   sf::Vector2u l_textSize = m_mushroomTexture.getSize();

   if ((m_mushroom.getPosition().x > l_windSize.x - l_textSize.x && m_increment.x > 0) ||      //undefined
      (m_mushroom.getPosition().x < 0 && m_increment.x < 0)) {
      m_increment.x = -m_increment.x;
   }
   if (m_mushroom.getPosition().y > l_windSize.y - l_textSize.y && m_increment.y > 0 ||
      m_mushroom.getPosition().y < l_windSize.y && m_increment.y < 0){
      m_increment.y = -m_increment.y;
   }
   m_mushroom.move(m_increment);
}

Can someone help me or lead me to something which explains that? since sfml3 is pretty new i have trouble finding examples to look at.

edit: maybe i can create a vector or an object and just attach the sprite late?