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

sf::Color HSVToRGB(float h,float s,float v){
  float hPrime=h/60.0f;
  unsigned int hIndex=int(hPrime)%6;
  float chroma=s*v;
  float min=(v-chroma);
  float x=chroma*(1.0f-abs(fmod(hPrime,2.0f)-1.0f));

  float outRGB[6][3]= {
    {chroma,x,0.0f},
    {x,chroma,0.0f},
    {0.0f,chroma,x},
    {0.0f,x,chroma},
    {x,0.0f,chroma},
    {chroma,0.0f,x}
  };

  float rF=(outRGB[hIndex][0]+min);
  float gF=(outRGB[hIndex][1]+min);
  float bF=(outRGB[hIndex][2]+min);
  rF*=255.0f;
  gF*=255.0f;
  bF*=255.0f;

  std::uint8_t rI=std::uint8_t(rF);
  std::uint8_t gI=std::uint8_t(gF);
  std::uint8_t bI=std::uint8_t(bF);
  return sf::Color(rI,gI,bI);

}

void PollEvents(sf::RenderWindow &window)
{
  while(const std::optional event = window.pollEvent())
  {
    if(event->is<sf::Event::Closed>()){
      window.close();
    }
    else if(const auto *keyPressed=event->getIf<sf::Event::KeyPressed>()){
      if(keyPressed->scancode==sf::Keyboard::Scancode::Escape){
        window.close();
      }
    }
  }
}
int main()
{
    unsigned int width=600;
    unsigned int height=800;
    sf::RenderWindow* window=new sf::RenderWindow(sf::VideoMode({width,height}),"ok");
    window->setFramerateLimit(60);

    sf::Texture texture;
    
    if(!texture.loadFromFile("AnimationExample.png"))
    {
      std::cerr<<"ERROR COULD NOT LOAD FILE::AnimationExample.png"<<std::endl;
      return -1;
    }

    sf::Sprite sprite(texture);

    int texWidth=0;

    sprite.setTextureRect({{0,0},{100,1300}});
    sprite.setOrigin({sprite.getTextureRect().size.x/2.5f,sprite.getTextureRect().size.y/2.5f});
    sprite.setPosition({width/2.0f,height/2.0f});
    sprite.setScale({1.0f,1.0f});

    float timer=0.0f;
    float timerMax=0.25f;

    while(window->isOpen())
    {
      PollEvents(*window);
      timer+=0.05f;
      if(timer>=timerMax){
        texWidth+=150;// each cell has a length of 32px  

        if(texWidth>=texture.getSize().x){
          texWidth=0;
        }
        if(texWidth<texture.getSize().x){
          sprite.setTextureRect({{texWidth,0},{120,1200}});
        }
        timer=0.0f;
      }
     
    //Render
    window->clear();

    //drawing 
    window->draw(sprite);
    window->display();

    }

    delete window;

    return 0;
}