Messages

1

Window / Re: SFML errors

« on: May 19, 2014, 10:03:55 pm »

I'm using Windows 7 Home Premium, compiling wirh MinGW 4.8.1, SFML 2.1, static linking.
It's the first time I'm having this kind of problems though I've been using SFML for about 2 months.

2

Window / SFML errors

« on: May 19, 2014, 07:13:33 pm »

Hello!
I'm having some problems with some SFML code. I'm getting the following errors:
"Failed to activate the window's context" x2
"Failed to initialize GLEW. Missing GL version" x8

Here is the code:

(click to show/hide)

//Author: George Roman
//Copyright © 2014 . All rights reserved.
//Built with SFML 2.1

//Graphics
#include <SFML/Graphics.hpp>
//Window
#include <SFML/Window.hpp>
//Input and output
#include <iostream>
//Random numbers
#include <ctime>
//Window input
#include <string>

class Bounce_Game
{
public:
    //Class constructor
    Bounce_Game();
    //Function for running the game
    void run();

    //SFML declarations
private:
    //Window
    sf::RenderWindow window;
    //Paddle
    sf::RectangleShape paddle;
    //Ball
    sf::CircleShape ball;
    //Background texture
    sf::Texture* background_Texture;
    //Paddle texture
    sf::Texture* paddle_Texture;
    //Ball texture
    sf::Texture* ball_Texture;
    //Event
    sf::Event event;
    //Font
    sf::Font font;
    //Play button text
    sf::Text play_Button_Text;
    //Exit button text
    sf::Text exit_Button_Text;
    //Speed options button text
    sf::Text speed_Button_Text;
    //Enter speed text
    sf::Text enter_Speed_Text;
    //Play button
    sf::RectangleShape play_Button;
    //Exit button
    sf::RectangleShape exit_Button;
    //Speed option button
    sf::RectangleShape speed_Button;
    //String for input
    sf::Text enter_Speed_Input;

    //C++ declarations
private:
    //Width of the screen
    const unsigned int SCREEN_WIDTH = 600;
    //Height of the screen
    const unsigned int SCREEN_HEIGHT = 400;

    // --  display  --
    // case 'a': menu is displayed
    // case 'b': speed option is displayed
    // case 'c': game is displayed
    char display;

    //Random number for ball x coordinates
    unsigned int random_number_1;
    //Random number for ball y coordinates
    unsigned int random_number_2;

    //Speed of the ball
    float speed = 1.0f;

    //x coordinate for moving the ball
    float x = speed;
    //y coordinate for moving the ball
    float y = speed;

    //String for input
    std::string speed_String;

    //Functions declaration
private:
    //Function for processing events
    void process_Events();
    //Function for rendering
    void render();
    //Function for moving and updates
    void update();
};

//Bounce_Game class constructor
Bounce_Game::Bounce_Game():
window(sf::VideoMode(SCREEN_WIDTH, SCREEN_HEIGHT), "Bounce 1.0.2"),
paddle(), ball(),
background_Texture(), paddle_Texture(), ball_Texture(),
play_Button_Text("Play", font), exit_Button_Text("Exit", font), speed_Button_Text("Speed options", font), enter_Speed_Text("Enter speed: ", font),
play_Button(), exit_Button(), speed_Button(),
enter_Speed_Input()
{
    //Random numbers generator
    srand(time(0));
    //random_number_1 between 100 and 900
    random_number_1 = (rand() % 900) + 100;
    //random_number_2 between 100 and 400
    random_number_2 = (rand() % 400) + 100;

    //Background texture
    if(!background_Texture->loadFromFile("background.jpg"))
    {
        std::cerr<<"Background image couldn't be loaded.";
    }

    //Paddle texture
    if(!paddle_Texture->loadFromFile("paddle.jpg"))
    {
        std::cerr<<"Paddle image couldn't be loaded.";
    }

    //Ball texture
    if(!ball_Texture->loadFromFile("ball.jpg"))
    {
        std::cerr<<"Ball image couldn't be loaded.";
    }

    //Font
    if(!font.loadFromFile("arial.ttf"))
    {
        std::cerr<<"Font couldn't be loaded.";
    }

    //Paddle starting position
    paddle.setPosition(440.0f, 800.0f);
    //Paddle size
    paddle.setSize(sf::Vector2f(120.0f, 15.0f));
    //Paddle texture
    paddle.setTexture(paddle_Texture);

    //Ball starting position
    ball.setPosition(random_number_1, random_number_2);
    //Ball radius
    ball.setRadius(10.0f);
    //Ball texture
    ball.setTexture(ball_Texture);

    //Menu is displayed
    display = 'a';

    //Play button position
    play_Button.setPosition(420.0f, 450.0f);
    //Play button size
    play_Button.setSize(sf::Vector2f(160.0f, 50.0f));

    //Play button text position
    play_Button_Text.setPosition(470.0f, 480.0f);
    //Play button text size
    play_Button_Text.setCharacterSize(20.0f);

    //Exit button position
    speed_Button.setPosition(420.0f, 520.0f);
    //Exit button size
    speed_Button.setSize(sf::Vector2f(160.0f, 50.0f));

    //Exit button text position
    speed_Button_Text.setPosition(470.0f, 510.0f);
    //Exit button text size
    speed_Button_Text.setCharacterSize(20.0f);

    //Speed option button position
    exit_Button.setPosition(420.0f, 580.0f);
    //Speed option button size
    exit_Button.setSize(sf::Vector2f(160.0f, 50.0f));

    //Speed option button text position
    exit_Button_Text.setPosition(440.0f, 530.0f);
    //Speed option button text size
    exit_Button_Text.setCharacterSize(20.0f);

    //Enter speed text position
    enter_Speed_Text.setPosition(300.0f, 480.0f);
    //Enter speed text size
    enter_Speed_Text.setCharacterSize(20.0f);
}

//Function for running
void Bounce_Game::run()
{
    while(window.isOpen())
    {
        process_Events();
        update();
        render();
    }
}

//Function for event processing
void Bounce_Game::process_Events()
{
    while(window.pollEvent(event))
    {
        //If mouse was pressed
        if(event.type == sf::Event::MouseButtonPressed)
        {
            if(event.mouseButton.button == sf::Mouse::Left &&
               sf::Mouse::getPosition(window).x >= 420.0f &&
               sf::Mouse::getPosition(window).x <= 580.0f &&
               sf::Mouse::getPosition(window).y >= 450.0f &&
               sf::Mouse::getPosition(window).y <= 500.0f)
            {
                //Play game display
                display = 'c';
            }
            else if(event.mouseButton.button == sf::Mouse::Left &&
               sf::Mouse::getPosition(window).x >= 420.0f &&
               sf::Mouse::getPosition(window).x <= 580.0f &&
               sf::Mouse::getPosition(window).y >= 520.0f &&
               sf::Mouse::getPosition(window).y <= 570.0f)
            {
                //Speed option display
                display = 'b';
            }
            else if(event.mouseButton.button == sf::Mouse::Left &&
               sf::Mouse::getPosition(window).x >= 420.0f &&
               sf::Mouse::getPosition(window).x <= 580.0f &&
               sf::Mouse::getPosition(window).y >= 580.0f &&
               sf::Mouse::getPosition(window).y <= 630.0f)
            {
                //Exit
                window.close();
            }
        }

        //If key was pressed
        if(event.type == sf::Event::KeyPressed)
        {
            if(event.key.code == sf::Keyboard::Return &&
               display == 'b')
            {
                display = 'a';
            }
        }

        //Speed input
        if(event.type == sf::Event::TextEntered &&
           display == 'b')
        {
            //Handle only ASCII characters
            if(event.text.unicode < 128)
            {
                speed_String += static_cast<char>(event.text.unicode);
            }

            //Set speed_String to enter_Speed_Input
            enter_Speed_Input.setString(speed_String);
        }

    }
}

//Function for updates
void Bounce_Game::update()
{
    switch(display)
    {
    case 'a':
        {
            //Set mouse to invisible
            window.setMouseCursorVisible(false);

            //Set paddle position
            paddle.setPosition(sf::Mouse::getPosition(window).x, 800.0f);

            //Colision detecting for x (with window borders)
            if(ball.getPosition().x <= 0)
            {
                x = speed;
            }
            else if(ball.getPosition().x >= SCREEN_WIDTH)
            {
                x = - speed;
            }

            //Colision detecting for y (with window borders)
            if(ball.getPosition().y <= 0)
            {
                y = speed;
            }
            else if(ball.getPosition().y >= SCREEN_HEIGHT)
            {
                y = - speed;
            }

            //Colision detecting with paddle
            if(ball.getPosition().x >= paddle.getPosition().x &&
               ball.getPosition().x <= paddle.getPosition().x - 120.0f &&
               ball.getPosition().y <= paddle.getPosition().y + 1.0f &&
               ball.getPosition().y >= paddle.getPosition().y - 1.0f)
            {
                y = - speed;
            }

            //Moving the ball
            ball.move(x, y);

            break;
        }
    case 'b':
        {
            //Set mouse cursor visible again
            window.setMouseCursorVisible(true);

            break;
        }
    }
}

//Function for rendering
void Bounce_Game::render()
{
    switch(display)
    {
    case 'a':
        {
            //Clear the screen
            window.clear();

            //Drawing "Play" button
            window.draw(play_Button);
            window.draw(play_Button_Text);

            //Drawing "Speed options" button
            window.draw(speed_Button);
            window.draw(speed_Button_Text);

            //Drawing "Exit" button
            window.draw(exit_Button);
            window.draw(exit_Button_Text);

            //Displaying the window
            window.display();

            break;
        }

    case 'b':
        {
            //Clear the screen
            window.clear();

            //Drawing "Enter speed: " text
            window.draw(enter_Speed_Text);

            //Displaying the window
            window.display();

            break;
        }
    case 'c':
        {
            //Closing the window
            window.close();
        }
    }
}

//Main function
int main(int argc, char** argv)
{
    //Declaring the game
    Bounce_Game game;

    //Running the game
    game.run();
}

3

Graphics / Re: Using sf::Clock on a moving ball.

« on: April 30, 2014, 08:00:45 pm »

#include <SFML/Graphics.hpp>
#include <vector>
#include <iostream>
#include <ctime>
#include <cstdlib>
#include <string>
#include <sstream>

std::string convertInt(int number)
{
   std::stringstream ss;
   ss << number;
   return ss.str();
}

int main(int argc, char** argv)
{
    sf::RenderWindow window(sf::VideoMode(800, 800), "Bounce!");

    int nr = 0;
    int times = 10;

    sf::Font font;
    if(!font.loadFromFile("arial.ttf"))
        return -1;

    sf::Texture texture1;
    if(!texture1.loadFromFile("D:\\texture1.jpg"))
        return -1;

    sf::Texture texture2;
    if(!texture2.loadFromFile("D:\\texture2.png"))
        return -1;

    sf::Texture texture3;
    if(!texture3.loadFromFile("D:\\texture3.jpg"));

    sf::Sprite sprite;
    sprite.setTexture(texture1);

    sf::Clock clock;

    std::vector<float> random_neg;
    std::vector<float> random_pos;

    random_neg.push_back(-0.3);
    random_neg.push_back(-0.2);
    random_pos.push_back(0.2);
    random_pos.push_back(0.3);

    float x1 = -0.2, y1 = -0.3;

    srand(time(0));

    int random1 = rand() % 2;
    int random2 = rand() % 2;

    sf::Texture* text2 = &texture2;
    sf::Texture* text3 = &texture3;

    sf::RectangleShape paddle;

    paddle.setPosition(350, 650);
    paddle.setSize(sf::Vector2f(100, 10));
    paddle.setTexture(text2);

    sf::CircleShape ball;

    ball.setRadius(10);
    ball.setPosition(335, 335);
    ball.setTexture(text3);

    window.setMouseCursorVisible(false);

    while(window.isOpen())
    {
        sf::Event event;
        clock.restart();

        float delta = clock.restart().asSeconds();

        random_neg[0] *= delta;
        random_neg[1] *= delta;
        random_pos[0] *= delta;
        random_pos[1] *= delta;

        while(window.pollEvent(event))
        {
            switch(event.type)
            {
            case sf::Event::Closed:
                window.close();
                break;
            case sf::Event::KeyPressed:
                if(event.key.code == sf::Keyboard::Escape)
                    window.close();
                break;
            }
        }

        paddle.setPosition(sf::Mouse::getPosition(window).x, 650);

        if(paddle.getPosition().x <= 0)
            paddle.setPosition(0, 650);
        if(paddle.getPosition().x >= 700)
            paddle.setPosition(700, 650);

        if(ball.getPosition().y <= 0)
        {
            random1 = rand() % 2;
            y1 = random_pos[random1];
        }

        if(ball.getPosition().y >= 785)
        {
            random1 = rand() % 2;
            y1 = random_neg[random1];
        }

        if(ball.getPosition().x <= 0)
        {
            random1 = rand() % 2;
            x1 = random_pos[random2];
        }

        if(ball.getPosition().x >= 800)
        {
            random1 = rand() % 2;
            x1 = random_neg[random2];
        }

        if( ball.getPosition().x <= paddle.getPosition().x + 100 &&
           ball.getPosition().x >= paddle.getPosition().x &&
           ball.getPosition().y <= paddle.getPosition().y &&
           ball.getPosition().y >= paddle.getPosition().y - 10 )
        {
            ++times;

            if(times >= 1)
            {
                nr += 1;
                times = 0;
            }

            y1 = random_neg[random1];

            if(x1 < 0)
                x1 = random_neg[random2];
            else
                x1 = random_pos[random2];
            ball.move(x1, y1);
        }
        else
            ball.move(x1, y1);
    }
}

4

Graphics / Re: Using sf::Clock on a moving ball.

« on: April 30, 2014, 02:58:29 pm »

I tried to implement it but now the ball is moving only a few seconds and then stops on the left corner.

    while(window.isOpen())
    {
        sf::Event event;

        float delta = clock.restart().asSeconds();

        random_neg[0] *= delta;
        random_neg[1] *= delta;
        random_pos[0] *= delta;
        random_pos[1] *= delta;
.........

5

Graphics / Using sf::Clock on a moving ball.

« on: April 29, 2014, 07:20:51 pm »

Hi! I'm trying to make a game, but on different computers the speed of the ball is different. I know I have to use the sf::Clock but I don't know how?
Can you help me?

#include <SFML/Graphics.hpp>
#include <vector>
#include <iostream>
#include <ctime>
#include <cstdlib>
#include <string>
#include <sstream>

std::string convertInt(int number)
{
   std::stringstream ss;
   ss << number;
   return ss.str();
}

const float speed = 0.3;

int main(int argc, char** argv)
{
    sf::RenderWindow window(sf::VideoMode(800, 800), "Bounce!!!");

    int nr = 0;

    sf::Font font;

    if(!font.loadFromFile("arial.ttf"))
        return -1;

    std::vector<float> random_neg;
    std::vector<float> random_pos;

    random_neg.push_back(-0.3);
    random_neg.push_back(-0.2);
    random_pos.push_back(0.2);
    random_pos.push_back(0.3);

    float x1 = -0.2, y1 = -0.3;

    srand(time(0));

    int random1 = rand() % 2;
    int random2 = rand() % 2;

    sf::RectangleShape paddle;

    paddle.setFillColor(sf::Color::Blue);
    paddle.setPosition(350, 650);
    paddle.setSize(sf::Vector2f(100, 10));

    sf::CircleShape ball;

    ball.setRadius(10);
    ball.setPosition(335, 335);
    ball.setFillColor(sf::Color::Red);

    window.setMouseCursorVisible(false);

    while(window.isOpen())
    {
        sf::Event event;

        while(window.pollEvent(event))
        {
            switch(event.type)
            {
            case sf::Event::Closed:
                window.close();
                break;
            case sf::Event::KeyPressed:
                if(event.key.code == sf::Keyboard::Escape)
                    window.close();
                break;
            }
        }

        paddle.setPosition(sf::Mouse::getPosition(window).x, 650);

        if(paddle.getPosition().x <= 0)
            paddle.setPosition(0, 650);
        if(paddle.getPosition().x >= 700)
            paddle.setPosition(700, 650);

        if(ball.getPosition().y <= 0)
        {
            random1 = rand() % 2;
            y1 = random_pos[random1];
        }

        if(ball.getPosition().y >= 785)
        {
            random1 = rand() % 2;
            y1 = random_neg[random1];
        }

        if(ball.getPosition().x <= 0)
        {
            random1 = rand() % 2;
            x1 = random_pos[random2];
        }

        if(ball.getPosition().x >= 800)
        {
            random1 = rand() % 2;
            x1 = random_neg[random2];
        }

        if( ball.getPosition().x <= paddle.getPosition().x + 100 &&
           ball.getPosition().x >= paddle.getPosition().x - 40 &&
           ball.getPosition().y <= paddle.getPosition().y + 10 &&
           ball.getPosition().y >= paddle.getPosition().y - 10 )
        {
            ++nr;
            y1 = random_neg[random1];

            if(x1 < 0)
                x1 = random_neg[random2];
            else
                x1 = random_pos[random2];
            ball.move(x1, y1);
        }
        else
            ball.move(x1, y1);

        if(ball.getPosition().y >= 650)
        {
            ball.setPosition(300, 300);
            break;
        }

        std::string score0 = "Score: " + convertInt(nr);

        sf::Text score;
        score.setString(score0);
        score.setFont(font);
        score.setCharacterSize(15);
        score.setPosition(700, 750);
        score.setColor(sf::Color::Black);

        window.clear(sf::Color::Yellow);
        window.draw(paddle);
        window.draw(ball);
        window.draw(score);
        window.display();
    }
}

6

Graphics / Re: sfml-graphics-2.dll missing

« on: April 28, 2014, 06:18:33 pm »

Hey! Now it's working. It seems I didn't put all DLL's in the file where the .exe is.
Thanks for help!

7

Graphics / Re: sfml-graphics-2.dll missing

« on: April 28, 2014, 06:08:01 pm »

Yes, I'm getting the same error message.

8

Graphics / Re: sfml-graphics-2.dll missing

« on: April 28, 2014, 05:36:26 pm »

It's not working.

9

Graphics / sfml-graphics-2.dll missing

« on: April 28, 2014, 05:27:27 pm »

Hi! I'm trying to build a first game in SFML. I have the code, I can compile it and I can play the game. But when I open the .exe project file, I'm getting an error message: "The program can't start because sfml-graphics-2.dll is missing from your computer.". This is kinda weird because when I compile and run the code in Code::Blocks everything is ok.
How can I fix this problem?
P.S : Sorry for my english.