update to Rust 2024 edition

Author: CleanCut

CHANGELOG.md

@@ -7,9 +7,9 @@
 - Bevy's `WindowResolution::new` function now takes `u32`s instead of `f32`s
 - Bevy's `Color` struct has had many changes. For example, `Color::rgb` is now `Color::srgb`. Please refer to Bevy's [`Color` documentation](https://docs.rs/bevy/0.18.0/bevy/color/enum.Color.html) for the full list of associated functions and their new names.
 
-
 ### Improved
 
+- Update to Rust 2024 edition
 - Update bevy from 0.12 to 0.18
 - Update bevy_prototype_lyon from 0.10 to 0.16
 - Update ron from 0.9 to 0.12

Cargo.toml

@@ -2,7 +2,7 @@
 name = "rusty_engine"
 version = "6.0.0"
 description = "Learn Rust with a simple, cross-platform, 2D game engine."
-edition = "2021"
+edition = "2024"
 homepage = "https://github.com/CleanCut/rusty_engine"
 repository = "https://github.com/CleanCut/rusty_engine"
 readme = "README.md"

examples/collider.rs

@@ -36,12 +36,18 @@ fn main() {
     // makes using it from `cargo install rusty_engine --example collider` possible.
     // This takes advantage of bevy's hard-coded asset loading behavior, and may break in future
     // bevy versions.
-    std::env::set_var(
-        "CARGO_MANIFEST_DIR",
-        std::env::var("PWD").unwrap_or_default(),
-    );
+    //
+    // Safety: This is done in single-threaded code, so concurrent access isn't a problem.
+    unsafe {
+        std::env::set_var(
+            "CARGO_MANIFEST_DIR",
+            std::env::var("PWD").unwrap_or_default(),
+        )
+    };
     // Make engine logging a bit quieter since we've got console instructions we want folks to see.
-    std::env::set_var("RUST_LOG", "error");
+    //
+    // Safety: This is done in single-threaded code, so concurrent access isn't a problem.
+    unsafe { std::env::set_var("RUST_LOG", "error") };
     // We need an image file to work with, so the user must pass in the path of an image
     let args = std::env::args().skip(1).collect::<Vec<_>>();
     if args.len() != 1 {

examples/level_creator.rs

@@ -40,12 +40,18 @@ fn main() {
     // makes using it from `cargo install rusty_engine --example collider` possible.
     // This takes advantage of bevy's hard-coded asset loading behavior, and may break in future
     // bevy versions.
-    std::env::set_var(
-        "CARGO_MANIFEST_DIR",
-        std::env::var("PWD").unwrap_or_default(),
-    );
+    //
+    // Safety: This is done in single-threaded code, so concurrent access isn't a problem.
+    unsafe {
+        std::env::set_var(
+            "CARGO_MANIFEST_DIR",
+            std::env::var("PWD").unwrap_or_default(),
+        )
+    };
     // Make engine logging a bit quieter since we've got console instructions we want folks to see.
-    std::env::set_var("RUST_LOG", "error");
+    //
+    // Safety: This is done in single-threaded code, so concurrent access isn't a problem.
+    unsafe { std::env::set_var("RUST_LOG", "error") };
 
     let mut game = Game::new();