Apply lints

src/gfx/camera.rs

···
         self.rotation = Vec2::ZERO;
 
         // Keep the camera's angle from going too high/low.
-        if camera.pitch < -MAX_CAMERA_PITCH {
-            camera.pitch = -MAX_CAMERA_PITCH;
-        } else if camera.pitch > MAX_CAMERA_PITCH {
-            camera.pitch = MAX_CAMERA_PITCH;
-        }
+        camera.pitch = camera.pitch.clamp(-MAX_CAMERA_PITCH, MAX_CAMERA_PITCH);
     }
 }
 

src/world/encoded.rs

···
-use std::collections::HashMap;
 use bincode::{Decode, Encode};
 use rollgrid::rollgrid3d::RollGrid3D;
+use std::collections::HashMap;
 
 use super::{chunk::Chunk, map::WorldMap};
-
 
 #[derive(Decode, Encode)]
 struct EncodedWorldMap {
···
 }
 
 impl EncodedWorldMap {
-    fn to_rollgrid(self) -> WorldMap {
+    fn to_rollgrid(&self) -> WorldMap {
         WorldMap {
             chunks: RollGrid3D::new(self.size, self.grid_offset, |p| self.chunks[&p]),
         }