Initial commit.

src/player.rs

@@ -0,0 +1,47 @@
+use std::fmt;
+
+use crate::{Gaussian, BETA, GAMMA, N_INF};
+
+#[derive(Debug)]
+pub struct Player {
+    pub prior: Gaussian,
+    pub beta: f64,
+    gamma: f64,
+    prior_draw: Gaussian,
+}
+
+impl Player {
+    pub fn new(prior: Gaussian, beta: f64, gamma: f64, prior_draw: Gaussian) -> Self {
+        Player {
+            prior,
+            beta,
+            gamma,
+            prior_draw,
+        }
+    }
+}
+
+impl Player {
+    pub fn performance(&self) -> Gaussian {
+        Gaussian::new(
+            self.prior.mu(),
+            (self.prior.sigma().powi(2) + self.beta.powi(2)).sqrt(),
+        )
+    }
+}
+
+impl Default for Player {
+    fn default() -> Self {
+        Player::new(Gaussian::default(), BETA, GAMMA, N_INF)
+    }
+}
+
+impl fmt::Display for Player {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        write!(
+            f,
+            "Player({}, beta={:.3}, gamma={:.3})",
+            self.prior, self.beta, self.gamma
+        )
+    }
+}