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-rw-r--r--src/rail.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/src/rail.h b/src/rail.h
index 539a162b8..320d24a9a 100644
--- a/src/rail.h
+++ b/src/rail.h
@@ -431,4 +431,13 @@ void ResetRailTypes();
void InitRailTypes();
RailType AllocateRailType(RailTypeLabel label);
+extern RailType _sorted_railtypes[RAILTYPE_END];
+extern uint8 _sorted_railtypes_size;
+
+/**
+ * Loop header for iterating over railtypes, sorted by sortorder.
+ * @param var Railtype.
+ */
+#define FOR_ALL_SORTED_RAILTYPES(var) for (uint8 index = 0; index < _sorted_railtypes_size && (var = _sorted_railtypes[index], true) ; index++)
+
#endif /* RAIL_H */