Messages

16

Graphics / Sprite Animation Speed Ridiculously Fast

« on: July 17, 2013, 07:48:19 am »

I have looked all over for hours trying to find some type of working solution to why my sprite animation moves faster than my eyes can even recognize. Can anybody give me code that will make it look like the guy is walking instead of running like Flash?

I followed CME tutorials on youtube, but I must be seriously missing something. If you by any chance post a separate class, could you indicate how to incorporate it into the main.

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

int main()
{
    enum Direction { Down, Left, Right, Up };

    sf::Vector2i screenDimensions(800,600);

    sf::RenderWindow window(sf::VideoMode(screenDimensions.x, screenDimensions.y), "SFML Game");

    float frameCounter = 0, switchFrame = 100, frameSpeed = 500;

    sf::Texture pTexture;
    sf::Sprite playerImage;
    sf::Clock clock;
    sf::Font font;
    sf::Music music;

    sf::Vector2i source(1, Down);

    {
    if(!music.openFromFile("KingOfTheDesert.ogg"))
        std::cout << "Error: Could not locate music file." << std::endl;
    }

    {
    if(!font.loadFromFile("Gabriola.ttf"))
        std::cout << "Error: Could not locate the font file." << std::endl;
    }

    {
    if(!pTexture.loadFromFile("Player.png"))
        std::cout << "Error: Could not load player image." << std::endl;
    else
        playerImage.setTexture(pTexture);
    }

    while (window.isOpen())
    {
        sf::Event Event;
        while (window.pollEvent(Event))
        {
            switch(Event.type)
            {
            case sf::Event::Closed:
                window.close();
            case sf::Event::KeyPressed:
                if(Event.key.code == sf::Keyboard::Up)
                    source.y = Direction::Up;
                else if(Event.key.code == sf::Keyboard::Down)
                    source.y = Direction::Down;
                else if(Event.key.code == sf::Keyboard::Left)
                    source.y = Direction::Left;
                else if(Event.key.code == sf::Keyboard::Right)
                    source.y = Direction::Right;
                if(Event.key.code == sf::Keyboard::P)
                    music.play();
                if(Event.key.code == sf::Keyboard::Escape)
                    window.close();
            }
        }

        source.x++;

        if(source.x * 32 >= pTexture.getSize().x)
            source.x = 0;

        if(sf::Keyboard::isKeyPressed(sf::Keyboard::Up))
        {
            source.y = Up;
            playerImage.move(0, -1);
        }
        else if(sf::Keyboard::isKeyPressed(sf::Keyboard::Down))
        {
            source.y = Down;
            playerImage.move(0, 1);
        }
        else if(sf::Keyboard::isKeyPressed(sf::Keyboard::Right))
        {
            source.y = Right;
            playerImage.move(1, 0);
        }
        else if(sf::Keyboard::isKeyPressed(sf::Keyboard::Left))
        {
            source.y = Left;
            playerImage.move(-1, 0);
        }

        frameCounter += frameSpeed * clock.restart().asSeconds();
        if(frameCounter >= switchFrame)
        {
            source.x++;

            if(source.x * 32 >= pTexture.getSize().x)
                source.x = 0;

            frameCounter = 0;
        }

        playerImage.setTextureRect(sf::IntRect(source.x * 32, source.y * 32, 32, 32));
        window.clear();
        window.draw(playerImage);
        window.display();
    }
    return 0;
}
 

17

Window / Re: Cannot close window with red X and escape returns error.

« on: July 17, 2013, 02:06:26 am »

switch(Event.type)
{
case sf::Event::KeyPressed:
    if(Event.type == sf::Event::Closed || Event.key.code == sf::Keyboard::Escape)
        window.close();
    // ...
}

This would translate into: When the event type is KeyPressed, then check whether the event type is Closed OR if the key code is Escape.
As you see the event type can never be KeyPressed AND Closed, thus when you click the X, nothing happens.

As for why it crashes when you press Escape, I'm not really sure...

Well I fixed the above and now both the escape key and the red X close the program. The error code still exists of course. *Code updated above*

18

Window / Closing window returns error.

« on: July 17, 2013, 01:43:12 am »

When closing the window, I get an error code: -1073741819. What is going on here and how do I fix it? (Win7, CodeBlocks12.11, SFML2.0)

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

int main()
{
    enum Direction { Down, Left, Right, Up };

    sf::Vector2i screenDimensions(800,600);

    sf::RenderWindow window(sf::VideoMode(screenDimensions.x, screenDimensions.y), "SFML Game");

    float frameCounter = 0, switchFrame = 100, frameSpeed = 500;

    sf::Texture pTexture;
    sf::Sprite playerImage;
    sf::Clock clock;
    sf::Font font;
    sf::Music music;

    sf::Vector2i source(1, Down);

    if(!music.openFromFile("KingOfTheDesert.ogg"))
        std::cout << "Error: Could not locate music file." << std::endl;

    if(!font.loadFromFile("Gabriola.ttf"))
        std::cout << "Error: Could not locate the font file." << std::endl;

    if(!pTexture.loadFromFile("Player.png"))
        std::cout << "Error: Could not load player image." << std::endl;
    else
        playerImage.setTexture(pTexture);

    while (window.isOpen())
    {
        sf::Event Event;
        while (window.pollEvent(Event))
        {
            switch(Event.type)
            {
            case sf::Event::Closed:
                window.close();
            case sf::Event::KeyPressed:
                if(Event.key.code == sf::Keyboard::Up)
                    source.y = Direction::Up;
                else if(Event.key.code == sf::Keyboard::Down)
                    source.y = Direction::Down;
                else if(Event.key.code == sf::Keyboard::Left)
                    source.y = Direction::Left;
                else if(Event.key.code == sf::Keyboard::Right)
                    source.y = Direction::Right;
                if(Event.key.code == sf::Keyboard::P)
                    music.play();
                if(Event.key.code == sf::Keyboard::Escape)
                    window.close();
            }
        }

        source.x++;

        if(source.x * 32 >= pTexture.getSize().x)
            source.x = 0;

        if(sf::Keyboard::isKeyPressed(sf::Keyboard::Up))
        {
            source.y = Up;
            playerImage.move(0, -10);
        }
        else if(sf::Keyboard::isKeyPressed(sf::Keyboard::Down))
        {
            source.y = Down;
            playerImage.move(0, 10);
        }
        else if(sf::Keyboard::isKeyPressed(sf::Keyboard::Right))
        {
            source.y = Right;
            playerImage.move(10, 0);
        }
        else if(sf::Keyboard::isKeyPressed(sf::Keyboard::Left))
        {
            source.y = Left;
            playerImage.move(-10, 0);
        }

        frameCounter += frameSpeed * clock.restart().asSeconds();
        if(frameCounter >= switchFrame)
        {
            frameCounter = 0;
            source.x++;
            if(source.x * 32 >= pTexture.getSize().x)
                source.x = 0;
        }

        playerImage.setTextureRect(sf::IntRect(source.x * 32, source.y * 32, 32, 32));
        window.draw(playerImage);
        window.display();
        window.clear();
    }
    return 0;
}