Port from julia version instead

src/agent.rs

@@ -0,0 +1,37 @@
+use crate::{gaussian::Gaussian, player::Player, N_INF};
+
+pub(crate) struct Agent {
+    pub(crate) player: Player,
+    pub(crate) message: Gaussian,
+    pub(crate) last_time: u64,
+}
+
+impl Agent {
+    pub(crate) fn receive(&self, elapsed: u64) -> Gaussian {
+        if self.message != N_INF {
+            self.message.forget(self.player.gamma, elapsed)
+        } else {
+            self.player.prior
+        }
+    }
+}
+
+impl Default for Agent {
+    fn default() -> Self {
+        Self {
+            player: Player::default(),
+            message: N_INF,
+            last_time: u64::MIN,
+        }
+    }
+}
+
+pub(crate) fn clean<'a, A: Iterator<Item = &'a mut Agent>>(agents: A, last_time: bool) {
+    for a in agents {
+        a.message = N_INF;
+
+        if last_time {
+            a.last_time = 0;
+        }
+    }
+}