Merge pull request #1755 from GriffinRichards/map-dynamic

Rename special map constants, treat warp ids as strings

include/constants/maps.h

@@ -3,14 +3,17 @@
 
 #include "map_groups.h"
 
-#define MAP_NONE (0x7F | (0x7F << 8))
+// Warps using this map will instead use the warp data stored in gSaveBlock1Ptr->dynamicWarp.
+// Used for warps that need to change destinations, e.g. when stepping off an elevator.
+#define MAP_DYNAMIC (0x7F | (0x7F << 8))
+
 #define MAP_UNDEFINED (0xFF | (0xFF << 8))
 
 #define MAP_GROUP(map) (MAP_##map >> 8)
 #define MAP_NUM(map) (MAP_##map & 0xFF)
 
 // 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
+// are never read in practice. A dest_map of MAP_DYNAMIC 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.