cargo fix

src/helpers.rs

@@ -1,5 +1,5 @@
 use std::fs;
-use std::path::{Path, PathBuf};
+use std::path::PathBuf;
 
 pub fn list_files(dir: &str) -> Vec<PathBuf> {
     fs::read_dir(dir)

src/rendering.rs

@@ -1,5 +1,5 @@
 use crate::{
-    camera::{self as cam, FirstPersonCamera},
+    camera::{self as cam},
     engine::{self, World},
     graphics_util::draw_cuboid,
 };