Struct FpsClock

pub struct FpsClock { /* private fields */ }

A structure that keeps your game loop running at a constant FPS

Implementations

impl FpsClock

pub fn new(fps: u32) -> FpsClock

Constructs a new FpsClock from the specified FPS

Examples found in repository

examples/ex_1.rs (line 6)

fn main() {
    let mut i = 0.0;
    let mut clock = FpsClock::new(30);
    loop {
        print!("\rTime since last tick (in nanosecs): {:?}", i);
        std::io::stdout().flush().unwrap();
        i = clock.tick();
    }
}

pub fn fps(&self) -> u32

Returns the FPS that this FpsClock is set to run at.

pub fn tick(&mut self) -> f32

Makes the game loop slow down to run at the correct FPS. Returns the time in nanoseconds since the last time tick() was called.

Examples found in repository

examples/ex_1.rs (line 10)

fn main() {
    let mut i = 0.0;
    let mut clock = FpsClock::new(30);
    loop {
        print!("\rTime since last tick (in nanosecs): {:?}", i);
        std::io::stdout().flush().unwrap();
        i = clock.tick();
    }
}

Trait Implementations

impl Debug for FpsClock

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.