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Graphics / Window clear? Trying to shoot a bullet

« on: July 06, 2014, 07:29:10 pm »

First I am new to SFML and C++ I used to program awhile ago so I am learning as is everybody and I know my code is not really great or formatted great so take it easy on me. My problem is this when I shoot my bullet instead of clearing for each new position of the image it just stretches across the screen  and slows down my program while left button is clicked. I want it to do what a bullet should do just shoot across the screen. Maybe it's my programing or maybe I am missing something in SFML Thanks!!

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

int windowX = 800;
int windowY = 600;
float x = 0;
float y = 0;
sf::RenderWindow window(sf::VideoMode(windowX, windowY), "My window");
int controller(){
        if (sf::Keyboard::isKeyPressed(sf::Keyboard::A))
{
    // left key is pressed: move our character
 if (x <= 0){
 }else{
        x = x-.2;
}
       
}
if (sf::Keyboard::isKeyPressed(sf::Keyboard::D))
{
    // left key is pressed: move our character
   if (x >= windowX -50){
 }else{
        x = x+.2;
 }

       
}
if (sf::Keyboard::isKeyPressed(sf::Keyboard::S))
{
    // left key is pressed: move our character
    if (y >= windowY -40){
 }else{
        y = y+.2;
 }
       
       
}
if (sf::Keyboard::isKeyPressed(sf::Keyboard::W))
{
    // left key is pressed: move our character
      if (y <= 0){
 }else{
                y = y-.2;
 }

       
}

return 0;
}



int main()
{
    // create the window
   

    // run the program as long as the window is open
    while (window.isOpen())
    {
        // check all the window's events that were triggered since the last iteration of the loop
        sf::Event event;
        while (window.pollEvent(event))
        {
            // "close requested" event: we close the window
            if (event.type == sf::Event::Closed)
                window.close();
        }

        // clear the window with black color
                window.clear(sf::Color::Blue);
                       
sf::Texture texture;
sf::Sprite sprite;
sprite.setPosition (x,y);
if (!texture.loadFromFile("image.png"))
{
    // error...
}
controller();
                bool drawbullet = false;
                float bulletx = 49;
                sf::Texture bullet1;
            sf::Sprite spritebullet1;
                if (!bullet1.loadFromFile("bullet.png"))
                {
                 
                }
       
       
                if(sf::Mouse::isButtonPressed(sf::Mouse::Left))
                {
                        drawbullet = true;
                }
        if (drawbullet == true){
                 
                for (float i = 0;i <= windowX; i = i + 1){
                spritebullet1.setTexture(bullet1);
                spritebullet1.setPosition (i,0);
            window.draw(spritebullet1);
       
                }
                }
               
sprite.setTexture(texture);
window.draw(sprite);

        // end the current frame
        window.display();
    }

    return 0;
}