Frame statistics

cerlib internally maintains a set of frame-related properties such as tick rate and the number of draw calls performed.

You can use these to aid debugging or to analyze performance-related issues.

Simply call the cer::frameStats() function, which will provide you with a cer::FrameStats object.

/**
 * Represents drawing statistics of a frame.
 */
struct FrameStats {
    /** The number of ticks processed in the last second. */
    double tickRate = 0.0;
    
    /** The number of draw calls that were performed in total. */
    int drawCalls = 0;
};

Example:

while (game.tick()) {
    // ...
    
    auto stats = frameStats();
    auto text  = format("{} Draw calls, {} FPS", stats.drawCalls, stats.tickRate);

    drawString(text.view(), Font::builtIn(), 32, {100, 100});
}