Use postcard to save worlds instead of ron

Cargo.lock

@@ -911,6 +911,12 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "cobs"
+version = "0.2.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "67ba02a97a2bd10f4b59b25c7973101c79642302776489e030cd13cdab09ed15"
+
 [[package]]
 name = "cocoa"
 version = "0.24.1"
@@ -2081,8 +2087,8 @@ name = "planet"
 version = "0.3.0"
 dependencies = [
  "bevy",
+ "postcard",
  "rand",
- "ron",
  "serde",
 ]
 
@@ -2098,6 +2104,16 @@ dependencies = [
  "miniz_oxide 0.3.7",
 ]
 
+[[package]]
+name = "postcard"
+version = "1.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1c2b180dc0bade59f03fd005cb967d3f1e5f69b13922dad0cd6e047cb8af2363"
+dependencies = [
+ "cobs",
+ "serde",
+]
+
 [[package]]
 name = "pp-rs"
 version = "0.2.1"

planet/Cargo.toml

@@ -23,5 +23,7 @@ version = "1.0"
 default-features = false
 features = ["derive"]
 
-[dependencies.ron]
-version = "0.8.0"
+[dependencies.postcard]
+version = "1.0.2"
+default-features = false
+features = ["use-std"]

planet/src/world_manager.rs

@@ -19,7 +19,7 @@ use {
 #[derive(Debug)]
 pub enum LoadError {
     MissingSave(io::Error),
-    InvalidSave(ron::error::SpannedError),
+    InvalidSave(postcard::Error),
 }
 impl Error for LoadError {
     fn source(&self) -> Option<&(dyn Error + 'static)> {
@@ -49,7 +49,7 @@ impl Display for LoadError {
 #[derive(Debug)]
 pub enum SaveError {
     MissingWorld,
-    SerializationError(ron::Error),
+    SerializationError(postcard::Error),
     FailedToWrite(io::Error),
 }
 impl Error for SaveError {
@@ -94,30 +94,20 @@ impl WorldManager {
     }
 
     pub fn save_world<P: AsRef<Path>>(&self, path: P) -> Result<(), SaveError> {
-        let world = match self.get_world() {
-            Some(world) => world,
-            None => {
+        let Some(world) = self.get_world() else {
             warn!("No world to save");
             return Err(SaveError::MissingWorld);
-            },
         };
-        #[cfg(feature = "logging")]
-        let serialized = match ron::ser::to_string_pretty(world, default()) {
+
+        
+        let serialized = match postcard::to_stdvec(world) {
             Ok(serialized) => serialized,
             Err(err) => {
                 return Err(SaveError::SerializationError(err));
             },
         };
 
-        #[cfg(not(feature = "logging"))]
-        let serialized = match ron::to_string(world) {
-            Ok(serialized) => serialized,
-            Err(err) => {
-                return Err(SaveError::SerializationError(err));
-            },
-        };
-
-        match File::create(path).unwrap().write_all(serialized.as_bytes()) {
+        match File::create(path).unwrap().write_all(serialized.as_slice()) {
             Ok(_) => Ok(()),
             Err(err) => Err(SaveError::FailedToWrite(err)),
         }
@@ -130,14 +120,12 @@ impl WorldManager {
                 return Err(LoadError::MissingSave(err));
             },
         };
-        let mut buf = String::new();
-        match file.read_to_string(&mut buf) {
-            Ok(_) => {},
-            Err(err) => {
+        let mut buf = vec![];
+        if let Err(err) = file.read_to_end(&mut buf) {
             return Err(LoadError::MissingSave(err));
-            },
         };
-        match ron::from_str(buf.as_str()) {
+        
+        match postcard::from_bytes(buf.as_slice()) {
             Ok(world) => {
                 self.world = Some(world);
                 Ok(())
@@ -146,17 +134,6 @@ impl WorldManager {
         }
     }
 
-    // #[cfg(feature = "render")]
-    // pub fn toggle_contours(&mut self) {
-    //     #[cfg(feature = "logging")]
-    //     if self.contours {
-    //         debug!("Turning terrain contours off");
-    //     } else {
-    //         debug!("Turning terrain contours on");
-    //     }
-    //     self.contours = !self.contours;
-    // }
-
     #[must_use]
     pub fn get_world(&self) -> Option<&World> {
         self.world.as_ref()