chore: Bump Rust edition to 2024.

Cargo.toml

@@ -7,10 +7,10 @@ keywords = ["game", "map", "map-generator"]
 license = "MIT OR Apache-2.0"
 repository = "https://labs.lightsout.games/projects/here_be_dragons"
 documentation = "https://docs.rs/here_be_dragons"
-edition = "2021"
+edition = "2024"
 
 [dependencies]
-rand = "0.8"
+rand = "0.9"
 serde = { version = "1", optional = true, features = ["derive"]}
 
 [package.metadata.release]

src/filter/bsp_interior.rs

@@ -127,8 +127,8 @@ mod tests {
     #[test]
     fn no_corridors_on_borders() {
         let mut rng = StdRng::seed_from_u64(907647352);
-        let gen = BspInterior::<NoData>::new();
+        let generator = BspInterior::<NoData>::new();
-        let map = gen.modify_map(&mut rng, &Map::new(80, 50));
+        let map = generator.modify_map(&mut rng, &Map::new(80, 50));
         for i in 0..80 {
             assert!(map.at(i, 0).unwrap().is_blocked());
             assert!(map.at(i, 49).unwrap().is_blocked());

src/filter/bsp_rooms.rs

@@ -175,8 +175,8 @@ mod tests {
     #[test]
     fn no_corridors_on_borders() {
         let mut rng = StdRng::seed_from_u64(907647352);
-        let gen = BspRooms::<NoData>::new();
+        let generator = BspRooms::<NoData>::new();
-        let map = gen.modify_map(&mut rng, &Map::new(80, 50));
+        let map = generator.modify_map(&mut rng, &Map::new(80, 50));
         for i in 0..80 {
             assert!(map.at(i, 0).unwrap().is_blocked());
             assert!(map.at(i, 49).unwrap().is_blocked());

src/filter/maze.rs

@@ -160,7 +160,7 @@ impl<'a, D: Clone + Default> Grid<'a, D> {
             if neighbors.len() == 1 {
                 return Some(neighbors[0]);
             } else {
-                return Some(neighbors[(self.rng.roll_dice(1, neighbors.len()) - 1)]);
+                return Some(neighbors[self.rng.roll_dice(1, neighbors.len()) - 1]);
             }
         }
         None

src/geometry.rs

@@ -142,4 +142,14 @@ mod tests {
         assert_eq!(rect1.width(), 40);
         assert_eq!(rect1.height(), 30);
     }
+
+    #[test]
+    fn test_center() {
+        let x = 0;
+        let y = 0;
+        let width = 12;
+        let height = 10;
+        let rect = Rect::new(x, y, width, height);
+        assert_eq!(rect.center(), Point::new(x + width / 2, y + height / 2));
+    }
 }