1 files changed, 8 insertions, 3 deletions
diff --git a/crawl-ref/source/maps.h b/crawl-ref/source/maps.h
index 174349da58..e5ce87220d 100644
--- a/crawl-ref/source/maps.h
+++ b/crawl-ref/source/maps.h
@@ -21,14 +21,15 @@
 class map_def;
 struct vault_placement
 {
-    int x, y;
-    int width, height;
+    coord_def pos;
+    coord_def size;
+
     int orient;
     map_def map;
     std::vector<coord_def> exits;
 
     vault_placement()
-        : x(-1), y(-1), width(0), height(0), orient(0), map(),
+        : pos(-1, -1), size(0, 0), orient(0), map(),
           exits()
     {
     }
@@ -40,6 +41,10 @@ int vault_main(map_type vgrid,
                bool check_place = false,
                bool clobber = false);
 
+// Given a rectangular region, slides it to fit into the map. size must be
+// smaller than (GXM,GYM).
+void fit_region_into_map_bounds(coord_def &pos, const coord_def &size);
+
 const map_def *map_by_index(int index);
 int map_count();
 int find_map_by_name(const std::string &name);