I'm very new to SFML so hopefully my problem is a very simple one. I currently have (relatively) few objects being drawn to my RenderWindow every loop iteration, although at seemingly random intervals there will be a noticeable delay with the next frame being drawn. Despite these very noticeable delays (2+ seconds) I have a statement in my code that will output the time between the current frame and the last one should it take more than 1 second. This statement does not output anything even when I can obviously see there has been one such delay. I am losing my mind trying to figure out where I screwed up. Any help will be very appreciated.
It is a simple typing program that measures WPM. The current word is displayed, alongside the next word to be typed.
Here is the code from my main function:
#include "game.hpp"
int main(void)
{
//game window
sf::RenderWindow gameWindow(sf::VideoMode(WINDOW_WIDTH, WINDOW_HEIGHT), "the game", sf::Style::Close);
//application icon
sf::Image appIcon;
appIcon.loadFromFile("appIcon.png");
gameWindow.setIcon(appIcon.getSize().x, appIcon.getSize().y, appIcon.getPixelsPtr());
//local mouse position (i.e. position relative to game window)
sf::Vector2i localMousePosition;
//game object
Game currentGame;
currentGame.populateWordList();
//initialize music
currentGame.initMainMusic();
currentGame.changeMainMusicState(1);
//MAIN MENU CHECK
bool playButtonClick = false;
//WORD SPELL CHECK
bool fullWordTyped = true;
//USER'S TYPED LETTERS
std::string typedCharacterString;
int typedCharStrSize = 60;
//CURRENT WORD TO DISPLAY
std::string currentWord;
//NEXT WORD TO DISPLAY
std::string nextWord = currentGame.getRandomWord();
//DATA FOR TIME
bool resetTimer = true;
sf::Clock timer;
sf::Time currentFrameTime = timer.getElapsedTime();
sf::Time lastFrameTime;
//SRAND INITIALIZATION (I know, I know)
std::srand(std::time(0));
/*RUN THE PROGRAM AS LONG
AS THE WINDOW IS OPEN*/
while (gameWindow.isOpen())
{
sf::Event event;
//EVENT LOOP FOR MAIN MENU
while (gameWindow.pollEvent(event))
{
//if window close request ==> close window
if (event.type == sf::Event::Closed)
{
gameWindow.close();
}
/*draw the main menu as long as:
1. the play button has not been clicked
2. the exit button has not been clicked*/
else if (!playButtonClick)
{
if (event.type == sf::Event::MouseButtonPressed && event.mouseButton.button == sf::Mouse::Left
&& currentGame.isMouseOnPlayButton(gameWindow))
{
playButtonClick = true;
}
else if (event.type == sf::Event::MouseButtonPressed && event.mouseButton.button == sf::Mouse::Left
&& currentGame.isMouseOnExitButton(gameWindow))
{
gameWindow.close();
}
}
else if (event.type == sf::Event::TextEntered)
{
if (typedCharStrSize > 50)
typedCharStrSize--;
else
typedCharStrSize = 60;
if (event.text.unicode == 8 && !typedCharacterString.empty())
{
typedCharacterString.pop_back();
break;
}
else if (event.text.unicode == 32 && typedCharacterString == currentWord)
{
currentGame.incrementWordsTyped();
currentGame.incrementTotalCharactersTyped(typedCharacterString.size());
typedCharacterString.clear();
fullWordTyped = true;
break;
}
else if (event.text.unicode > 31 && event.text.unicode < 127)
{
typedCharacterString.push_back(static_cast<char>(event.text.unicode));
break;
}
}
}
//clear previous frame
gameWindow.clear(sf::Color::Black);
if (!playButtonClick)
currentGame.mainMenu(gameWindow);
if (playButtonClick)
{
sf::Time timePeriod = timer.getElapsedTime();
currentGame.setWPM((currentGame.getTotalCharactersTyped() / 5) / (timePeriod.asSeconds() / 60));
currentGame.drawBackground(gameWindow);
currentGame.drawWPM(gameWindow);
currentGame.drawString(currentWord, gameWindow, WINDOW_WIDTH/2.2, WINDOW_HEIGHT/4);
if (currentGame.getTotalWordsTyped() < 49)
currentGame.drawString(nextWord, gameWindow, WINDOW_WIDTH/1.4, WINDOW_HEIGHT/4, 30);
currentGame.drawString(typedCharacterString, gameWindow, WINDOW_WIDTH/2, WINDOW_HEIGHT/3, typedCharStrSize, sf::Text::Style::Underlined);
timePeriod = timer.getElapsedTime();
currentGame.drawString(std::to_string((int)timePeriod.asSeconds()), gameWindow, WINDOW_WIDTH/3, WINDOW_HEIGHT/1.1);
if (currentGame.isMainMusicPlaying())
{
currentGame.changeMainMusicState();
currentGame.initGameMusic();
currentGame.changeGameMusicState(1);
}
if (resetTimer)
{
timer.restart();
resetTimer = false;
}
if (fullWordTyped)
{
currentWord = nextWord;
do
{
nextWord = currentGame.getRandomWord();
} while (currentWord == nextWord || currentWord == " " || currentWord.empty() || nextWord.empty()
|| (currentWord.size() + nextWord.size()) > 22);
fullWordTyped = false;
}
if (currentGame.getTotalWordsTyped() >= 50)
{
currentGame.updateBestWPM();
resetTimer = true;
playButtonClick = false;
}
}
//draw to the screen
gameWindow.display();
lastFrameTime = currentFrameTime;
currentFrameTime = timer.getElapsedTime();
if (currentFrameTime.asSeconds() - lastFrameTime.asSeconds() > 1)
{
std::cout << "\nThis frame took " << currentFrameTime.asSeconds() - lastFrameTime.asSeconds() << " seconds\n";
}
}
return 0;
}
