1 files changed, 13 insertions, 1 deletions
diff --git a/src/dungeon/mod.rs b/src/dungeon/mod.rs
index d3227a5..baeb0fe 100644
--- a/src/dungeon/mod.rs
+++ b/src/dungeon/mod.rs
@@ -1,11 +1,15 @@
 //! Turn-based dungeons: the map, field of view, derelict-ship generation,
 //! and the rules of a crawl. Drawing lives in `scenes::derelict`.
 
+pub mod armour;
+pub mod arms;
 pub mod crawl;
 pub mod fov;
 pub mod ship;
 
-#[derive(Clone, Copy, Debug, PartialEq, Eq, Hash)]
+use serde::{Deserialize, Serialize};
+
+#[derive(Clone, Copy, Debug, PartialEq, Eq, Hash, Serialize, Deserialize)]
 pub struct Pos {
     pub x: i32,
     pub y: i32,
@@ -111,6 +115,14 @@ impl Map {
         self.tiles[i] = tile;
     }
 
+    /// Which room `p` is in, to tell when you've gone into another.
+    pub fn room_index(&self, p: Pos) -> Option<u16> {
+        if !self.contains(p) {
+            return None;
+        }
+        self.room_of[self.index(p)]
+    }
+
     pub fn room_at(&self, p: Pos) -> Option<&Room> {
         if !self.contains(p) {
             return None;