Files
trueskill-tt/src/agent.rs

48 lines
976 B
Rust

use crate::{
N_INF,
drift::{ConstantDrift, Drift},
gaussian::Gaussian,
player::Player,
};
#[derive(Debug)]
pub struct Agent<D: Drift = ConstantDrift> {
pub player: Player<D>,
pub message: Gaussian,
pub last_time: i64,
}
impl<D: Drift> Agent<D> {
pub(crate) fn receive(&self, elapsed: i64) -> Gaussian {
if self.message != N_INF {
self.message
.forget(self.player.drift.variance_delta(elapsed))
} else {
self.player.prior
}
}
}
impl Default for Agent<ConstantDrift> {
fn default() -> Self {
Self {
player: Player::default(),
message: N_INF,
last_time: i64::MIN,
}
}
}
pub(crate) fn clean<'a, D: Drift + 'a, A: Iterator<Item = &'a mut Agent<D>>>(
agents: A,
last_time: bool,
) {
for a in agents {
a.message = N_INF;
if last_time {
a.last_time = i64::MIN;
}
}
}