Document SS Tidal scripts

include/constants/field_specials.h

@@ -13,6 +13,19 @@
 #define SS_TIDAL_LOCATION_ROUTE124  3
 #define SS_TIDAL_LOCATION_ROUTE131  4
 
+#define SS_TIDAL_BOARD_SLATEPORT     1
+#define SS_TIDAL_DEPART_SLATEPORT    2
+#define SS_TIDAL_HALFWAY_LILYCOVE    3
+#define SS_TIDAL_LAND_LILYCOVE       4
+#define SS_TIDAL_BOARD_LILYCOVE      5
+#define SS_TIDAL_DEPART_LILYCOVE     6
+#define SS_TIDAL_HALFWAY_SLATEPORT   7
+#define SS_TIDAL_LAND_SLATEPORT      8
+#define SS_TIDAL_EXIT_CURRENTS_RIGHT 9
+#define SS_TIDAL_EXIT_CURRENTS_LEFT  10
+
+#define SS_TIDAL_MAX_STEPS 205
+
 // Scrollable Multichoice Menus
 #define SCROLL_MULTI_NONE                                  0
 #define SCROLL_MULTI_GLASS_WORKSHOP_VENDOR                 1