SFML Bullet nicht spawnen

Question

Also verwende ich SFML und C++, um ein einfaches Weltraumspiel zu erstellen. Für das Leben von kann keine Kugel zum Laichen bekommen. Das ist meine Quelle ... Ich versuche nur zu lernen, wie man neue Sprites in ein Spiel bringt.

`` `

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

int main() 
{ 
// Create the main window 
sf::RenderWindow app(sf::VideoMode(800, 600), "SFML window"); 

// Load a sprite to display 
sf::Texture texture_sprite; 
if (!texture_sprite.loadFromFile("cb.bmp")) 
    return EXIT_FAILURE; 
sf::Sprite sprite(texture_sprite); 

sf::Texture texture_background; 
if (!texture_background.loadFromFile("space.png")) 
    return EXIT_FAILURE; 
sf::Sprite background(texture_background); 

sf::Texture texture_fire; 
if (!texture_background.loadFromFile("fire_1.png")) 
    return EXIT_FAILURE; 
sf::Sprite fire_sprite(texture_fire); 
fire_sprite.setScale(4.0f, 1.6f); 


std::string direction = ""; 
bool fire = false; 

// Start the game loop 
while (app.isOpen()) 
{ 
    // Process events 
    sf::Event event; 
    while (app.pollEvent(event)) 
    { 
     if (event.type == sf::Event::Closed) 
     { 
      app.close(); 
     } 
     else if(sf::Keyboard::isKeyPressed(sf::Keyboard::Left) && sprite.getPosition().x > -20) 
      { 
      sprite.move(-10,0); 
      std::cout << "X = " << sprite.getPosition().x << std::endl; 
      std::cout << "Y = " << sprite.getPosition().y << std::endl; 
      direction = "Left"; 
      } 
     else if(sf::Keyboard::isKeyPressed(sf::Keyboard::Right) && sprite.getPosition().x < 670) 
      { 
      sprite.move(10,0); 
      std::cout << "X = " << sprite.getPosition().x << std::endl; 
      std::cout << "Y = " << sprite.getPosition().y << std::endl; 
      direction = "Right"; 
      } 
     else if(sf::Keyboard::isKeyPressed(sf::Keyboard::Up) && sprite.getPosition().y > 0) 
      { 
      sprite.move(0,-10); 
      std::cout << "X = " << sprite.getPosition().x << std::endl; 
      std::cout << "Y = " << sprite.getPosition().y << std::endl; 
      direction = "Up"; 
      } 
     else if(sf::Keyboard::isKeyPressed(sf::Keyboard::Down) && sprite.getPosition().y < 480) 
      { 
      sprite.move(0,10); 
      std::cout << "X = " << sprite.getPosition().x << std::endl; 
      std::cout << "Y = " << sprite.getPosition().y << std::endl; 
      direction = "Down"; 
      } 
     else if(sf::Keyboard::isKeyPressed(sf::Keyboard::Space)) 
      { 
      fire = true; 

      } 
     else if (event.type == sf::Event::KeyReleased && event.key.code == sf::Keyboard::Space) 
      { 
      fire = false; 
      } 
      if(fire == true) 
    { 
     std::cout << "FIRE!!!" << std::endl; 
     fire_sprite.setPosition((sprite.getPosition())); 

     std::cout << "Fire positions is " <<fire_sprite.getPosition().x << " " << fire_sprite.getPosition().y << "The direction is " << direction <<std::endl; 
    } 

    } 

    app.clear(); 

    // Draw the sprite 

    app.draw(background); 
    app.draw(sprite); 
    app.draw(fire_sprite); 
    // Update the window 
    app.display(); 


} 

return EXIT_SUCCESS; 
} 

` ``

Answer 1

sf::Texture texture_fire; 
if (!texture_background.loadFromFile("fire_1.png")) 

Statt Laden Textur texture_fire Sie wieder zu texture_background laden. Es sollte sein:

if (!texture_fire.loadFromFile("fire_1.png"))