Add feature to load and save to a test swap-file

2 files changed, 45 insertions, 4 deletions

diff --git a/src/editor.rs b/src/editor.rs
index 9dcbefc..09f7e0d 100644
--- a/src/editor.rs
+++ b/src/editor.rs
@@ -40,6 +40,17 @@ impl Editor {
             self.active
         };
 
+        // Handle saving and loading the editor contents to the swap file
+        if rl.is_key_pressed(KeyboardKey::KEY_S) {
+            self.map_data
+                .write_file("swap.ron")
+                .expect("Unable to write buffer file");
+        } else if rl.is_key_pressed(KeyboardKey::KEY_L) {
+            self.map_data
+                .load_file("swap.ron")
+                .expect("Unable to read buffer file");
+        }
+
         for tool in &mut self.tools {
             tool.update(&self.map_data, rl, transform);
         }
diff --git a/src/map_data.rs b/src/map_data.rs
index d958736..62229c6 100644
--- a/src/map_data.rs
+++ b/src/map_data.rs
@@ -1,6 +1,9 @@
 use crate::math::{Rect, Vec2};
+use ron::de::from_reader;
+use ron::ser::{to_string_pretty, PrettyConfig};
 use serde::{Deserialize, Serialize};
-use std::io;
+use std::fs::File;
+use std::io::{self, Write};
 use std::path::Path;
 
 /// All the data of the currently opened map. This does not include things that are currently being
@@ -20,12 +23,39 @@ impl MapData {
         }
     }
 
-    pub fn load_file<P: AsRef<Path>>(&mut self, path: P) -> io::Result<MapData> {
-        todo!()
+    pub fn load_file<P: AsRef<Path>>(&mut self, path: P) -> io::Result<()> {
+        let file = File::open(&path)?;
+        let mut data: Self = match from_reader(file) {
+            Ok(data) => data,
+            Err(err) => {
+                return Err(io::Error::new(io::ErrorKind::InvalidData, err));
+            }
+        };
+
+        /* Append map data to the currently loaded map. (Default behaviour might change in the
+         * future)
+         */
+        self.rooms.append(&mut data.rooms);
+        self.walls.append(&mut data.walls);
+
+        Ok(())
     }
 
     pub fn write_file<P: AsRef<Path>>(&self, path: P) -> io::Result<()> {
-        todo!()
+        let mut file = File::create(&path)?;
+
+        let pretty_conf = PrettyConfig::new()
+            .with_depth_limit(4)
+            .with_separate_tuple_members(true)
+            .with_indentor("\t".to_owned());
+        let string = match to_string_pretty(&self, pretty_conf) {
+            Ok(string) => string,
+            Err(err) => {
+                return Err(io::Error::new(io::ErrorKind::InvalidInput, err));
+            }
+        };
+
+        file.write_all(&string.as_bytes())
     }
 
     pub fn rooms(&self) -> &Vec<Rect<f32>> {