如何在SFML中使用c

我正在使用SFML进行c游戏.我已经写了一个用于移动玩家的代码,但是当游戏启动玩家时,移动但是当我离开按钮时玩家返回其原始位置.可以帮助我吗？

主要的：

#include <iostream>
#include <SFML/Graphics.hpp>

int main() {

    sf::RenderWindow window(sf::VideoMode(1320,840),"Window");
    window.setPosition(sf::Vector2i(150,50));
    window.setSize(sf::Vector2u(1320,840));
    window.getPosition();
    window.setVerticalSyncEnabled(true);
    window.setFramerateLimit(5);
    window.getSize();

    while (window.isopen()) {

        window.clear(sf::Color::White);

        //texture
        sf::Texture texture;
        if (!texture.loadFromFile("/users/gaetanodonnarumma/desktop/background1.png",sf::IntRect(0,1320,840))) {
            return -1;
        }

        sf::Texture playerTexture;
        if (!playerTexture.loadFromFile("/users/gaetanodonnarumma/desktop/quadrato-giallo.jpg",70,70))) {
            return -1;
        }

        //sprite
        sf::Sprite backgroud;
        backgroud.setTexture(texture);

        sf::Sprite player;
        double pX = 0;
        double pY = 770;
        player.setTexture(playerTexture);
        player.setPosition(sf::Vector2f(pX,pY));
        player.getPosition();

        sf::Event event;

        while (window.pollEvent(event)) {

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

            if (event.type == sf::Event::Keypressed) {
                if (event.key.code == sf::Keyboard::D) {
                    player.move(10.f,0.f);
                }
            }

            if (event.type == sf::Event::Keypressed) {
                if (event.key.code == sf::Keyboard::D) {
                    player.setPosition(pX + 10,770);
                }

            }

                if (event.type == sf::Event::Keypressed) {
                    if (event.key.code == sf::Keyboard::A) {
                        player.move(-5.f,0.f);
                    }
                }
        }

        //draw
        window.draw(backgroud);
        window.draw(player);

        window.display();

    }

    return 0;

}

解决方法

所有初始化代码都在每一帧上运行.这意味着在每一帧上,您创建(并销毁)一个新玩家,设置其纹理,并将其位置设置为[0,770].

将所有初始化移至主绘制循环开始之前(while(window.isopen())之前).