//! Provides time related functionality for Clocks.
use std::time::{Duration, Instant};

use flax::component;

component! {
    pub clock: Clock,
}

/// Measures high precision time
#[allow(dead_code)]
pub struct Clock {
    start: Instant,
}

#[allow(dead_code)]
impl Clock {
    // Creates and starts a new clock
    pub fn new() -> Self {
        Clock {
            start: Instant::now(),
        }
    }

    // Returns the elapsed time
    pub fn elapsed(&self) -> Duration {
        Instant::now() - self.start
    }

    // Resets the clock and returns the elapsed time
    pub fn reset(&mut self) -> Duration {
        let elapsed = self.elapsed();

        self.start = Instant::now();
        elapsed
    }
}

impl Default for Clock {
    fn default() -> Self {
        Self::new()
    }
}