Anders Olsson
decbd895a3
Competitor holds dynamic per-history state (message, last_time) for someone competing; its configuration lives in a Rating. AgentStore renamed to CompetitorStore to match. The internal `clean()` free function's parameter name changed from `agents` to `competitors` for consistency. Local variable names (agent_idx, this_agent) inside history.rs are left unchanged — they represent abstract identifiers, not Competitor instances. Part of T2 of docs/superpowers/specs/2026-04-23-trueskill-engine-redesign-design.md.
51 lines
1.2 KiB
Rust
51 lines
1.2 KiB
Rust
use crate::{
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N_INF,
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drift::{ConstantDrift, Drift},
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gaussian::Gaussian,
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rating::Rating,
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};
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/// Per-history, temporal state for someone competing.
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///
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/// Renamed from `Agent` in T2; the former `.player` field is now
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/// `.rating` to match the `Player → Rating` rename.
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#[derive(Debug)]
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pub struct Competitor<D: Drift = ConstantDrift> {
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pub rating: Rating<D>,
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pub message: Gaussian,
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pub last_time: i64,
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}
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impl<D: Drift> Competitor<D> {
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pub(crate) fn receive(&self, elapsed: i64) -> Gaussian {
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if self.message != N_INF {
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self.message
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.forget(self.rating.drift.variance_delta(elapsed))
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} else {
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self.rating.prior
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}
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}
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}
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impl Default for Competitor<ConstantDrift> {
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fn default() -> Self {
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Self {
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rating: Rating::default(),
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message: N_INF,
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last_time: i64::MIN,
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}
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}
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}
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pub(crate) fn clean<'a, D: Drift + 'a, C: Iterator<Item = &'a mut Competitor<D>>>(
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competitors: C,
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last_time: bool,
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) {
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for c in competitors {
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c.message = N_INF;
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if last_time {
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c.last_time = i64::MIN;
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}
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}
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}
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