Add OW_UNION_DISABLE_CHECK and OW_FLAG_MOVE_UNION_ROOM_CHECK (#5448)

* First addition of both checks

* Updated config file

* fixed spacing

* Updated spacing

* Fixed issues where feature was always on

* Update overworld.h

fixed spacing per https://github.com/rh-hideout/pokeemerald-expansion/pull/5448#discussion_r1789647611

data/scripts/cable_club.inc

@@ -1258,7 +1258,11 @@ EventScript_CloseMossdeepGameCornerBarrier::
 
 CableClub_OnResume:
 	special InitUnionRoom
+.if OW_FLAG_MOVE_UNION_ROOM_CHECK != 0
+	return
+.else
 	end
+.endif
 
 MossdeepCity_GameCorner_1F_EventScript_InfoMan2::
 	lock

data/scripts/pkmn_center_nurse.inc

@@ -36,6 +36,11 @@ EventScript_PkmnCenterNurse_TakeAndHealPkmn::
 	applymovement VAR_0x800B, Movement_PkmnCenterNurse_Turn @ Changed from Common_Movement_WalkInPlaceFasterLeft to force the follower to enter their Poké Ball
 	waitmovement 0
 	dofieldeffect FLDEFF_POKECENTER_HEAL
+.if OW_UNION_DISABLE_CHECK == FALSE && OW_FLAG_MOVE_UNION_ROOM_CHECK != 0
+	setflag OW_FLAG_MOVE_UNION_ROOM_CHECK
+	call CableClub_OnResume
+	clearflag OW_FLAG_MOVE_UNION_ROOM_CHECK
+.endif
 	waitfieldeffect FLDEFF_POKECENTER_HEAL
 	applymovement VAR_0x800B, Common_Movement_WalkInPlaceFasterDown
 	waitmovement 0

include/config/overworld.h

@@ -107,5 +107,7 @@
 
 // Pokémon Center
 #define OW_IGNORE_EGGS_ON_HEAL           GEN_LATEST         // In Gen 4+, the nurse in the Pokémon Center does not heal Eggs on healing machine.
+#define OW_UNION_DISABLE_CHECK           FALSE              // When TRUE, the nurse does not inform the player if there is a trainer waiting in the Union Room. This speeds up the loading of the Pokémon Center.
+#define OW_FLAG_MOVE_UNION_ROOM_CHECK    0                  // If this flag is set, the game will only check if players are in the Union Room while healing Pokémon, and not when players enter the Pokémon Center. This speeds up the loading of the Pokémon Center. This is ignored if OW_UNION_DISABLE_CHECK is TRUE.
 
 #endif // GUARD_CONFIG_OVERWORLD_H

include/link.h

@@ -344,5 +344,6 @@ bool8 DoesLinkPlayerCountMatchSaved(void);
 void SetCloseLinkCallbackAndType(u16 type);
 bool32 IsSendingKeysToLink(void);
 u32 GetLinkRecvQueueLength(void);
+bool32 ShouldCheckForUnionRoom(void);
 
 #endif // GUARD_LINK_H

src/link.c

@@ -2367,3 +2367,17 @@ void ResetRecvBuffer(void)
         }
     }
 }
+
+bool32 ShouldCheckForUnionRoom(void)
+{
+    if (OW_UNION_DISABLE_CHECK)
+        return FALSE;
+
+    if (OW_FLAG_MOVE_UNION_ROOM_CHECK == 0)
+        return TRUE;
+
+    if (FlagGet(OW_FLAG_MOVE_UNION_ROOM_CHECK))
+        return TRUE;
+
+    return FALSE;
+}

src/union_room.c

@@ -3294,6 +3294,9 @@ void InitUnionRoom(void)
 {
     struct WirelessLink_URoom *data;
 
+    if (!ShouldCheckForUnionRoom())
+        return;
+
     sUnionRoomPlayerName[0] = EOS;
     CreateTask(Task_InitUnionRoom, 0);
     sWirelessLinkMain.uRoom = sWirelessLinkMain.uRoom; // Needed to match.
@@ -3377,6 +3380,9 @@ static void Task_InitUnionRoom(u8 taskId)
 
 bool16 BufferUnionRoomPlayerName(void)
 {
+    if (!ShouldCheckForUnionRoom())
+        return FALSE;
+
     if (sUnionRoomPlayerName[0] != EOS)
     {
         StringCopy(gStringVar1, sUnionRoomPlayerName);