extract has_position trait

src/player.rs

@@ -1,6 +1,6 @@
 use std::cmp::{max, min};
 
-use crate::position::Position;
+use crate::position::{HasPosition, Position};
 
 pub struct Player {
     name: String,
@@ -34,12 +34,6 @@ impl Player {
     pub fn get_max_life(&self) -> i16 {
         self.max_life
     }
-    pub fn get_position(&mut self) -> &mut Position {
-        &mut self.position
-    }
-    pub fn get_immutable_position(&self) -> &Position {
-        &self.position
-    }
 
     /// add the given amount to the players gold stash
     pub fn retrieve_gold(&mut self, amount: usize) { self.gold += amount }
@@ -52,6 +46,15 @@ impl Player {
     pub fn get_experience(&self) -> usize { self.experience }
 }
 
+impl HasPosition for Player {
+    fn get_position(&mut self) -> &mut Position {
+        &mut self.position
+    }
+    fn get_immutable_position(&self) -> &Position {
+        &self.position
+    }
+}
+
 #[test]
 fn test_get_name() {
     let p = Player {