Add Makefile and format rust core

rust/src/player/server_node.rs

@@ -38,7 +38,7 @@ impl ICharacterBody3D for PlayerServerNode {
             self.base_mut().set_velocity(new_velocity);
         }
         self.jumping = false;
-        
+
         if self.base().is_on_floor() {
             let direction = self.base().get_transform().basis
                 * Vector3::new(self.input_direction.x, 0.0, self.input_direction.y);
@@ -103,7 +103,11 @@ impl PlayerServerNode {
             Some(map) => map,
             None => return,
         };
-        let args = &[casted_bullet_node.to_variant(), 10.to_variant(), 10.to_variant()];
+        let args = &[
+            casted_bullet_node.to_variant(),
+            10.to_variant(),
+            10.to_variant(),
+        ];
         map.call("spawn_bullet", args);
     }
 }