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fix order of arguments in ranker

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This commit is contained in:
Ilion Beyst 2022-05-28 11:22:00 +02:00
parent 06ac7a370c
commit fadcda8503
1 changed files with 2 additions and 2 deletions
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4
planetwars-server/src/modules/ranking.rs
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@ -9,7 +9,7 @@ use tokio;
const RANKER_INTERVAL: u64 = 60;
const START_RATING: f64 = 0.0;
const SCALE: f64 = 100.0;
const MAX_UPDATE: f64 = 5.0;
const MAX_UPDATE: f64 = 10.0;
pub async fn run_ranker(db_pool: DbPool) {
// TODO: make this configurable
@ -78,7 +78,7 @@ async fn play_ranking_match(selected_bots: Vec<Bot>, db_pool: DbPool) {
for i in 0..2 {
let j = 1 - i;
let scaled_difference = (ratings[i] - ratings[j]) / SCALE;
let scaled_difference = (ratings[j] - ratings[i]) / SCALE;
let expected = 1.0 / (1.0 + 10f64.powf(scaled_difference));
let new_rating = ratings[i] + MAX_UPDATE * (scores[i] - expected);
db::ratings::set_rating(selected_bots[i].id, new_rating, &db_conn)