CODEWITHSUNDEEP
c++sfml
rohanharikr
rohanharikr

Reputation: 1811

How to cout elapsed time without repeat in SFML?

Here is my code:

...
sf::Clock clock;
float time = 0.f;

while(window.isOpen())
{
  time = clock.getElapsed().asSeconds();
  cout << (int)time << endl;
}
...

This is the output I am getting:

0
0
0
0
1
1
1
1

As you can see from the above output, each second is getting logged multiple times, and I just want it to be displayed once like below:

0
1
2
3

Code from link in comment:

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

using namespace std;

int main()
{
    sf::RenderWindow window(sf::VideoMode(1280, 720), "SFML works!");
    sf::Clock clock;
    float dt = 0.f;
    int lastTime = 0;
    int currentTime = 0;

    while (window.isOpen())
    {
        dt = clock.getElapsedTime().asSeconds();
        lastTime = (int)dt;
        currentTime = lastTime;

        sf::Event event;
        while (window.pollEvent(event))
        {
            if (event.type == sf::Event::Closed)
                window.close();
        }

        window.clear();
        window.display();

        
        if(currentTime!=lastTime)
            cout << (int)dt << std::endl;
    }

    return 0;
}

Upvotes: 0

Views: 734

Answers (1)

SdSaati
SdSaati

Reputation: 910

You are inside a while, you have a cout inside it! so it will print all the time, and convert each time(milliseconds) to seconds!

for this purpose you need to use a timer or an easier method, save the last time and +it with 1000 milliseconds and check it inside your while condition.

as a pseudo code:

int time = 0;
int last_time = 0;

while(window.isOpen())
{​  
  if(time > last_time){
     cout << time << endl;
  }
  last_time = time;
  time = clock.getElapsed().asSeconds();
}

Upvotes: 2

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