Merge branch 'master' into snapping

1 files changed, 31 insertions, 2 deletions

diff --git a/src/map/data.rs b/src/map/data.rs
index 1031d3c..f7ec484 100644
--- a/src/map/data.rs
+++ b/src/map/data.rs
@@ -1,6 +1,6 @@
 //! Module containing the raw map data version of the map.
 
-use super::{IconData, PolygonRoomData, RectRoomData, WallData};
+use super::{IconData, Map, PolygonRoomData, RectRoomData, WallData};
 use ron::de::from_reader;
 use ron::ser::{to_string_pretty, PrettyConfig};
 use serde::{Deserialize, Serialize};
@@ -35,8 +35,37 @@ impl MapData {
         }
     }
 
+    /// Creates a data struct from the Map. It is important to note, that this data element is not
+    /// bound to the Map in any way after this, so changing anything won't change anything in the map.
+    /// It is useful however to for instance serialize this map without extra rendering information
+    /// included.
+    pub fn extract_data(map: &Map) -> Self {
+        Self {
+            rect_rooms: map
+                .rect_rooms()
+                .iter()
+                .map(|r| (r as &RectRoomData).clone())
+                .collect(),
+            polygon_rooms: map
+                .polygon_rooms()
+                .iter()
+                .map(|p| (p as &PolygonRoomData).clone())
+                .collect(),
+            walls: map
+                .walls()
+                .iter()
+                .map(|w| (w as &WallData).clone())
+                .collect(),
+            icons: map
+                .icons()
+                .iter()
+                .map(|i| (i as &IconData).clone())
+                .collect(),
+        }
+    }
+
     /// Load the map data from a file. Fails if the file does not exist or cannot be correctly parsed.
-    pub fn load_from_file<P: AsRef<Path>>(&mut self, path: P) -> io::Result<Self> {
+    pub fn load_from_file<P: AsRef<Path>>(path: P) -> io::Result<Self> {
         let file = File::open(&path)?;
         let data: Self = match from_reader(file) {
             Ok(data) => data,