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-rw-r--r--include/constants/maps.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/include/constants/maps.h b/include/constants/maps.h
index b849749a9..6524f8c14 100644
--- a/include/constants/maps.h
+++ b/include/constants/maps.h
@@ -15,4 +15,16 @@
#define MAP_GROUP_SPECIAL_MONS_1 MAP_GROUP(METEOR_FALLS_1F_1R)
#define MAP_GROUP_SPECIAL_MONS_2 MAP_GROUP(SAFARI_ZONE_NORTHWEST)
+// IDs for dynamic warps. Both are used in the dest_warp_id field for warp events, but they
+// are never read in practice. A dest_map of MAP_NONE is used to indicate that a
+// dynamic warp should be used, at which point the warp id is ignored. It can be passed to
+// SetDynamicWarp/SetDynamicWarpWithCoords as the first argument, but this argument is unused.
+// As only one dynamic warp is saved at a time there's no need to distinguish between them.
+#define WARP_ID_SECRET_BASE 0x7E
+#define WARP_ID_DYNAMIC 0x7F
+
+// Used to indicate an invalid warp id, for dummy warps or when a warp should
+// use the given coordinates rather than the coordinates of a target warp.
+#define WARP_ID_NONE (-1)
+
#endif // GUARD_CONSTANTS_MAPS_H