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C-/C++-Quelltext

#include <iostream>
#include "core.hpp"

int main() {
    Core core;
    core.Run();
    return 0;
}

C-/C++-Quelltext

#include "core.hpp"

const sf::Time Core::TimePerFrame = sf::seconds(1.f / 60.f);

Core::Core() 
:Application(sf::VideoMode(800, 480, 32), "Projekt 1 - Uebung", sf::Style::Default) {
    if (!m_TextFont.loadFromFile("media/fonts/tahoma.ttf")) {
        throw std::runtime_error("Failed to load 'tahoma.ttf' in Main-Core!");
    }
    else {
        m_StatisticsText.setFont(m_TextFont);
        m_StatisticsText.setColor(sf::Color::Red);
        m_StatisticsText.setCharacterSize(10);
        m_StatisticsText.setPosition(1.f, 1.f);
    }

}

Core::~Core() {

}

void Core::Run() {
    sf::Clock clock;
    sf::Time timeSinceLastUpdate = sf::Time::Zero;

    while (Application.isOpen()) {
        ProcessEvents();
        Update(timeSinceLastUpdate);
        UpdateStatistics(timeSinceLastUpdate);
        Render();

        sf::Time waitTime = TimePerFrame - timeSinceLastUpdate;
        sf::sleep(waitTime);

        timeSinceLastUpdate = clock.restart();
    }
}

void Core::Update(sf::Time deltatime) {

}

void Core::UpdateStatistics(sf::Time elapsedTime) {
    m_StitisticsUpdateTime += elapsedTime;
    m_StatisticsNumFrame++;

    if (m_StitisticsUpdateTime >= sf::seconds(1.f)){
        m_StatisticsText.setString("Frames: " + std::to_string(m_StatisticsNumFrame) + "\n" +
            "Time/Update: " + std::to_string(m_StitisticsUpdateTime.asMicroseconds() / m_StatisticsNumFrame));

        m_StitisticsUpdateTime -= sf::seconds(1.f);
        m_StatisticsNumFrame = 0;
    }
}

void Core::ProcessEvents(){
    while (Application.pollEvent(Event)) {
        if (Event.type == sf::Event::Closed) {
            Application.close();
        }
    }
}

void Core::Render(){
    Application.clear();
    Application.draw(m_StatisticsText);
    Application.display();
}

C-/C++-Quelltext

#pragma once
#include <SFML/Graphics.hpp>

class Core {

public:
    Core();
    ~Core();

    void Run();

    sf::RenderWindow Application;
    sf::Event Event;

private:
    void Update(sf::Time deltatime);
    void UpdateStatistics(sf::Time elapsedTime);
    void ProcessEvents();
    void Render();

    sf::Font m_TextFont;
    sf::Text m_StatisticsText;
    sf::Time m_StitisticsUpdateTime;
    std::size_t m_StatisticsNumFrame;
    static const sf::Time TimePerFrame;
};

Quellcode

main.o: In function `main':
main.cpp:(.text+0x14): undefined reference to `Core::Core()'
main.cpp:(.text+0x20): undefined reference to `Core::Run()'
main.cpp:(.text+0x30): undefined reference to `Core::~Core()'
main.cpp:(.text+0x44): undefined reference to `Core::~Core()'