Begin documenting Battle Pike and Frontier Util

include/constants/battle_frontier.h

@@ -12,7 +12,8 @@
 #define FRONTIER_FACILITY_PIKE     5
 #define FRONTIER_FACILITY_PYRAMID  6
 #define NUM_FRONTIER_FACILITIES    7
-// The multiplayer battle colosseum rooms re-use VAR_FRONTIER_FACILITY.
+// VAR_FRONTIER_FACILITY is re-used for the below facilities as well
+#define FACILITY_LINK_CONTEST      7
 #define FACILITY_UNION_ROOM        8
 #define FACILITY_MULTI_OR_EREADER  9  // Direct Corner multi battles, multi battle with Steven, and e-Reader battles
 
@@ -21,15 +22,23 @@
 #define TENT_SLATEPORT 4
 
 // Battle Frontier lvl modes.
-#define FRONTIER_LVL_50 0
+#define FRONTIER_LVL_50   0
 #define FRONTIER_LVL_OPEN 1
 #define FRONTIER_LVL_TENT 2
 
 // Battle Frontier battle modes.
-#define FRONTIER_MODE_SINGLES 0
-#define FRONTIER_MODE_DOUBLES 1
-#define FRONTIER_MODE_MULTIS 2
-#define FRONTIER_MODE_LINK_MULTIS 3
+#define FRONTIER_MODE_SINGLES      0
+#define FRONTIER_MODE_DOUBLES      1
+#define FRONTIER_MODE_MULTIS       2
+#define FRONTIER_MODE_LINK_MULTIS  3
+#define FRONTIER_MODE_COUNT        4
+
+// TODO
+#define CHALLENGE_STATUS_INACTIVE 0
+#define CHALLENGE_STATUS_CANCEL   1
+#define CHALLENGE_STATUS_ONGOING  2
+#define CHALLENGE_STATUS_WON      3
+#define CHALLENGE_STATUS_LOST     4
 
 // Special trainer battles.
 #define SPECIAL_BATTLE_TOWER 0
@@ -86,9 +95,6 @@
 
 #define FRONTIER_GAMBLER_CHALLENGE_COUNT 12
 
-// For 'ShowFacilityResultsWindow' function which is a part of the 'CallFrontierUtilFunc' special.
-#define RESULTS_LINK_CONTEST 7
-
 #define EXCHANGE_CORNER_DECOR1_CLERK     0
 #define EXCHANGE_CORNER_DECOR2_CLERK     1
 #define EXCHANGE_CORNER_VITAMIN_CLERK    2