Module ggez::timer

Timing and measurement functions.

ggez does not try to do any framerate limitation by default. If you want to run at anything other than full-bore max speed all the time, you should use one of sleep() or sleep_until_next_frame() functions in this module at the end of your GameState.draw() callback.

sleep() with a duration of 0 will just yield to the OS so it has a chance to breathe before continuing with your game, while sleep_until_next_frame() will attempt to calculate how long it should wait to hit the desired FPS and sleep that long.

Structs

TimeContext

A structure that contains our time-tracking state independent of SDL. According to the rust-sdl2 maintainers, SDL's time functions are of dubious thread-safety, while Rust's are pretty solid.

Functions

get_average_delta	Gets the average time of a frame, averaged over the last 60 frames.
get_delta	Get the time between the start of the last frame and the current one; in other words, the length of the last frame.
get_fps	Gets the FPS of the game, averaged over the last 60 frames.
get_time_since_start	Returns the time since the game was initialized.
sleep	Pauses the current thread for the target duration. Just calls std::thread::sleep() so it's as accurate as that is.
sleep_until_next_frame	This function will attempt to sleep the current thread until the beginning of the next frame should occur, to reach the desired FPS.