SFML Help undefined reference and #include help

[overki11]

Hello. I'm trying to make a game with SFML. The problem is that when I'm trying to display the sprite of the ship it is giving me an undefined reference. Also, I want to know if I can do something better than putting all of my #includes into each header, because I know that can cause problems later on.

player.h

#ifndef PLAYER_H
#define PLAYER_H
#include <SFML/Graphics.hpp>
#include <SFML/Audio.hpp>
#include <string>
#include <game.h>
#include <projectile.h>

extern projectile laser;

class player
{
    public:
        player(std::string texDirectory);

        int getLives(){return lives;}
        sf::Texture getShipTex(){return shipTex;}
        bool getIsAlive(){return isAlive;}
        int getSpeed(){return speed;}
        projectile getWeapon(){return *weapon;}
        int getHealth(){return health;}
        int getAmmo(){return ammo;}
        sf::Sprite getShipSprite (){return shipSprite;}


        void setLives(int s_Lives){lives = s_Lives;}
        void setShipTex(std::string s_shipTex){shipTex.loadFromFile(s_shipTex);}
        void setIsAlive(bool s_isAlive){isAlive = s_isAlive;}
        void setSpeed(int s_speed){speed = s_speed;}
        void setHealth(int s_health){health = s_health;}
        void setAmmo(int s_ammo){ammo = s_ammo;}

    protected:
    private:
        int lives = 3;
        sf::Texture shipTex;
        bool isAlive = true;
        int speed = 1;
        projectile *weapon = &laser;
        int health = 10;
        int ammo;
        sf::Sprite shipSprite;

};

#endif // PLAYER_H

main.cpp

#include <SFML/Graphics.hpp>
#include <SFML/Audio.hpp>
#include <string>
#include <projectile.h>
#include <player.h>

int main()
{


sf::RenderWindow window(sf::VideoMode(1920, 1080), "Space Assault");

sf::Texture background;
background.loadFromFile("textures/space.png");
sf::Sprite backgroundSprite;
backgroundSprite.setTexture(background);

player player("textures/ships/fighter1.png");

    while (window.isOpen())
    {
        sf::Event event;
        while (window.pollEvent(event))
        {
            if (event.type == sf::Event::Closed) {
            window.close();
            }

        }

        window.clear();
        window.draw(backgroundSprite);
        window.draw(player.getShipSprite());
        window.display();
    }
    return 0;
}

the error:

undefined refernece to 'shipSprite'

[Zhuge]

What line? What file?

[TarikNeaj]

includes into each header

Make an Abstract class with virtual functions.

Also, please copy paste your errors always. And tell us what you thing the problem might be.

[cire]

An undefined reference means the linker can find no definition of a function or variable used in your program. Ensure that you have such a definition and that it is being exposed to your toolchain.