player.cpp

#include <SFML/Graphics.hpp>

const size_t screenWidth = 800;
const size_t screenHeight = 600;

class Player {
public:
    size_t x;
    size_t y;
    double speed;
    sf::Sprite sprite;
    Player(sf::Texture& texture, const std::string& filename, size_t ux = 100, size_t uy = 30, double uspeed = .2): x(ux), y(uy), speed(uspeed) {
        if(texture.loadFromFile(filename))
            sprite.setTexture(texture);

        sprite.setPosition(ux,uy);
    }
    void move() {
        // Moves the sprite.
        if(sf::Keyboard::isKeyPressed(sf::Keyboard::Right))
            sprite.move(speed,0);
        if(sf::Keyboard::isKeyPressed(sf::Keyboard::Left))
            sprite.move(-speed,0);
        if(sf::Keyboard::isKeyPressed(sf::Keyboard::Down))
            sprite.move(0,speed);
        if(sf::Keyboard::isKeyPressed(sf::Keyboard::Up))
            sprite.move(0,-speed);
        //Checks for collision for the border
        sf::Vector2f hold = sprite.getPosition();
        sf::FloatRect coord = sprite.getGlobalBounds();
        if(hold.x < 0) {
            hold.x = 0;
            sprite.setPosition(hold);
        }
        else if(hold.y < 0) {
            hold.y = 0;
            sprite.setPosition(hold);
        }
        else if(hold.x + coord.width> screenWidth) {
            hold.x = screenWidth - coord.width;
            sprite.setPosition(hold);
        }
        else if(hold.y + coord.height > screenHeight) {
            hold.y = screenHeight - coord.height;
            sprite.setPosition(hold);
        }

    }
};

int main() {
    sf::Texture texture2;
    Player omok(texture2,"images/omok.png");
    sf::RenderWindow window(sf::VideoMode(screenWidth,screenHeight),"Example",sf::Style::Close);

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

        window.clear();
        window.draw(omok.sprite);
        omok.move();
        window.display();
    }
}