add basic interaction with self

Author: Zaechus

src/world.ron

@@ -1,5 +1,6 @@
 (player: "PLAYER", items: {
     "PLAYER": (
+        names: ["self", "myself"],
         locations: ["BRIG"],
         hp: 10,
     ),

tests/test.rs

@@ -151,5 +151,15 @@ mod tests {
             "You hit the goblin with your spear. It dies. It drops a dagger."
         );
         assert_eq!(game.ask("take dagger"), "Taken.");
+
+        // hit self
+        assert_eq!(
+            game.ask("hit self with the spear"),
+            "You hit the self with your spear."
+        );
+        assert_eq!(
+            game.ask("hit myself with my dagger"),
+            "You hit the self with your dagger."
+        );
     }
 }

tests/world.ron

@@ -1,5 +1,6 @@
 (player: "PLAYER", items: {
     "PLAYER": (
+        names: ["self", "myself"],
         locations: ["CENTER ROOM"],
         hp: 10,
     ),