Refactor some stuff

src/player.rs

@@ -14,16 +14,16 @@ pub struct Player {
     pub prior: Gaussian,
     pub beta: f64,
     pub gamma: f64,
-    prior_draw: Gaussian,
+    pub draw: Gaussian,
 }
 
 impl Player {
-    pub fn new(prior: Gaussian, beta: f64, gamma: f64, prior_draw: Gaussian) -> Self {
+    pub fn new(prior: Gaussian, beta: f64, gamma: f64, draw: Gaussian) -> Self {
         Player {
             prior,
             beta,
             gamma,
-            prior_draw,
+            draw,
         }
     }
 }