fix: casino stake preservation, world state reconciliation, casino game registration

1 files changed, 5 insertions, 1 deletions

diff --git a/internal/admin/api_map.go b/internal/admin/api_map.go
index d0372df..231f52b 100644
--- a/internal/admin/api_map.go
+++ b/internal/admin/api_map.go
@@ -246,6 +246,10 @@ func (s *AdminServer) handleMap(w http.ResponseWriter, r *http.Request) {
 	var upLinks []UDLink
 	var downLinks []UDLink
 
+	// Hoist the room index once: RoomIndex builds a fresh map copy under the
+	// world lock, and calling it per exit made this loop O(rooms x exits x
+	// rooms) with a mutex acquisition each time.
+	roomIndex := s.world.RoomIndex()
 	seenLinks := make(map[string]bool)
 	for rid, room := range roomData {
 		c := g.Coord[rid]
@@ -255,7 +259,7 @@ func (s *AdminServer) handleMap(w http.ResponseWriter, r *http.Request) {
 				continue
 			}
 			targetCoord, hasCoord := g.Coord[target]
-			targetExists := s.world.RoomIndex()[target]
+			_, targetExists := roomIndex[target]
 
 			if !targetExists || !hasCoord {
 				if dir != world.Up && dir != world.Down {