Misc missing constant use

src/battle_script_commands.c

@@ -7812,9 +7812,18 @@ static void Cmd_metronome(void)
     {
         s32 i;
 
+    #if MOVES_COUNT < 512
+        // Original GF method of move selection is to pick a random
+        // number between 1-511. 355-511 are not valid moves, so if it
+        // picks in this range it retries. If MOVES_COUNT exceeds 511 we
+        // instead use a simpler solution.
         gCurrentMove = (Random() & 0x1FF) + 1;
         if (gCurrentMove >= MOVES_COUNT)
             continue;
+    #else
+        // Just pick a valid move value (between 1 and MOVES_COUNT-1)
+        gCurrentMove = (Random() % (MOVES_COUNT - 1)) + 1;
+    #endif
 
         for (i = 0; i < MAX_MON_MOVES; i++); // ?