Add OW_AUTO_SIGNPOST and associated metatile behaviors

data/event_scripts.s

@@ -724,6 +724,11 @@ EventScript_BackupMrBrineyLocation::
 	.include "data/scripts/rival_graphics.inc"
 	.include "data/scripts/set_gym_trainers.inc"
 
+EventScript_CancelMessageBox::
+	special UseBlankMessageToCancelPokemonPic
+	release
+	end
+
 Common_EventScript_ShowBagIsFull::
 	msgbox gText_TooBadBagIsFull, MSGBOX_DEFAULT
 	release

data/specials.inc

@@ -554,3 +554,4 @@ gSpecials::
 	def_special Script_GetChosenMonDefensiveEVs
 	def_special Script_GetChosenMonOffensiveIVs
 	def_special Script_GetChosenMonDefensiveIVs
+	def_special UseBlankMessageToCancelPokemonPic

include/config/overworld.h

@@ -3,6 +3,7 @@
 
 // Movement config
 #define OW_RUNNING_INDOORS          GEN_LATEST  // In Gen4+, players are allowed to run indoors.
+#define OW_AUTO_SIGNPOST            FALSE       // When enabled, if the tile that the player is facing has MB_SIGNPOST, MB_POKEMART_SIGN, or MB_POKEMON_CENTER_SIGN, the player will automatically read the signpost, as seen in FRLG.
 
 // Other settings
 #define OW_POISON_DAMAGE                GEN_LATEST // In Gen4, Pokémon no longer faint from Poison in the overworld. In Gen5+, they no longer take damage at all.

include/constants/metatile_behaviors.h

@@ -30,9 +30,9 @@
 #define MB_UNUSED_SOOTOPOLIS_DEEP_WATER_2 0x1A
 #define MB_STAIRS_OUTSIDE_ABANDONED_SHIP 0x1B
 #define MB_SHOAL_CAVE_ENTRANCE 0x1C
-#define MB_UNUSED_1D 0x1D
-#define MB_UNUSED_1E 0x1E
-#define MB_UNUSED_1F 0x1F
+#define MB_SIGNPOST 0x1D
+#define MB_POKEMON_CENTER_SIGN 0x1E
+#define MB_POKEMART_SIGN 0x1F
 #define MB_ICE 0x20
 #define MB_SAND 0x21
 #define MB_SEAWEED 0x22

include/event_scripts.h

@@ -649,4 +649,8 @@ extern const u8 EventScript_VsSeekerChargingDone[];
 extern const u8 Common_Movement_FollowerSafeStart[];
 extern const u8 Common_Movement_FollowerSafeEnd[];
 
+extern const u8 EventScript_CancelMessageBox[];
+extern const u8 Common_EventScript_ShowPokemonCenterSign[];
+extern const u8 Common_EventScript_ShowPokemartSign[];
+
 #endif // GUARD_EVENT_SCRIPTS_H

include/field_control_avatar.h

@@ -34,5 +34,9 @@ u8 TrySetDiveWarp(void);
 const u8 *GetInteractedLinkPlayerScript(struct MapPosition *position, u8 metatileBehavior, u8 direction);
 const u8 *GetCoordEventScriptAtMapPosition(struct MapPosition *position);
 void ClearPoisonStepCounter(void);
+void CancelSignPostMessageBox(struct FieldInput *input);
+
+#define NOT_SIGNPOST 0
+#define WALK_AWAY_SIGNPOST_FRAMES 6
 
 #endif // GUARD_FIELDCONTROLAVATAR_H

include/field_message_box.h

@@ -19,4 +19,6 @@ u8 GetFieldMessageBoxMode(void);
 void StopFieldMessage(void);
 void InitFieldMessageBox(void);
 
+extern u8 gWalkAwayFromSignpostTimer;
+
 #endif // GUARD_FIELD_MESSAGE_BOX_H

include/graphics.h

@@ -2,6 +2,7 @@
 #define GUARD_GRAPHICS_H
 
 // overworld
+extern const u32 gSignpostWindow_Gfx[];
 extern const u32 gMessageBox_Gfx[];
 extern const u16 gMessageBox_Pal[];
 

include/menu.h

@@ -5,6 +5,12 @@
 #include "text.h"
 #include "window.h"
 
+#define DLG_WINDOW_PALETTE_NUM 15
+#define DLG_WINDOW_BASE_TILE_NUM 0x200
+#define STD_WINDOW_PALETTE_NUM 14
+#define STD_WINDOW_PALETTE_SIZE PLTT_SIZEOF(10)
+#define STD_WINDOW_BASE_TILE_NUM 0x214
+
 #define MENU_NOTHING_CHOSEN -2
 #define MENU_B_PRESSED -1
 

include/metatile_behavior.h

@@ -148,5 +148,8 @@ bool8 MetatileBehavior_IsQuestionnaire(u8);
 bool8 MetatileBehavior_IsLongGrass_Duplicate(u8);
 bool8 MetatileBehavior_IsLongGrassSouthEdge(u8);
 bool8 MetatileBehavior_IsTrainerHillTimer(u8);
+bool32 MetatileBehavior_IsSignpost(u32);
+bool32 MetatileBehavior_IsPokemonCenterSign(u32);
+bool32 MetatileBehavior_IsPokeMartSign(u32);
 
 #endif // GUARD_METATILE_BEHAVIOR_H

include/script.h

@@ -63,4 +63,7 @@ void InitRamScript_NoObjectEvent(u8 *script, u16 scriptSize);
 // srccmd.h
 void SetMovingNpcId(u16 npcId);
 
+extern u8 gMsgIsSignPost;
+extern u8 gMsgBoxIsCancelable;
+
 #endif // GUARD_SCRIPT_H

include/text_window.h

@@ -14,6 +14,7 @@ extern const u16 gTextWindowFrame1_Pal[];
 
 const struct TilesPal *GetWindowFrameTilesPal(u8 id);
 void LoadMessageBoxGfx(u8 windowId, u16 destOffset, u8 palOffset);
+void LoadSignBoxGfx(u8 windowId, u16 destOffset, u8 palOffset);
 void LoadWindowGfx(u8 windowId, u8 frameId, u16 destOffset, u8 palOffset);
 void LoadUserWindowBorderGfx(u8 windowId, u16 destOffset, u8 palOffset);
 void LoadUserWindowBorderGfx_(u8 windowId, u16 destOffset, u8 palOffset);
@@ -23,5 +24,6 @@ void DrawTextBorderInner(u8 windowId, u16 tileNum, u8 palNum);
 void rbox_fill_rectangle(u8 windowId);
 const u16 *GetTextWindowPalette(u8 id);
 const u16 *GetOverworldTextboxPalettePtr(void);
+void LoadSignPostWindowFrameGfx(void);
 
 #endif // GUARD_TEXT_WINDOW_H

src/field_control_avatar.c

@@ -10,6 +10,7 @@
 #include "event_scripts.h"
 #include "fieldmap.h"
 #include "field_control_avatar.h"
+#include "field_message_box.h"
 #include "field_player_avatar.h"
 #include "field_poison.h"
 #include "field_screen_effect.h"
@@ -34,6 +35,7 @@
 #include "constants/event_objects.h"
 #include "constants/field_poison.h"
 #include "constants/map_types.h"
+#include "constants/metatile_behaviors.h"
 #include "constants/songs.h"
 #include "constants/trainer_hill.h"
 
@@ -73,6 +75,11 @@ static void UpdateFollowerStepCounter(void);
 #if OW_POISON_DAMAGE < GEN_5
 static bool8 UpdatePoisonStepCounter(void);
 #endif // OW_POISON_DAMAGE
+static bool32 TrySetUpWalkIntoSignpostScript(struct MapPosition * position, u32 metatileBehavior, u32 playerDirection);
+static void SetMsgSignPostAndVarFacing(u32 playerDirection);
+static void SetUpWalkIntoSignScript(const u8 *script, u32 playerDirection);
+static u32 GetFacingSignpostType(u16 metatileBehvaior, u32 direction);
+static const u8 *GetSignpostScriptAtMapPosition(struct MapPosition * position);
 
 void FieldClearPlayerInput(struct FieldInput *input)
 {
@@ -154,6 +161,7 @@ int ProcessPlayerFieldInput(struct FieldInput *input)
     gSpecialVar_LastTalked = 0;
     gSelectedObjectEvent = 0;
 
+    gMsgIsSignPost = FALSE;
     playerDirection = GetPlayerFacingDirection();
     GetPlayerPosition(&position);
     metatileBehavior = MapGridGetMetatileBehaviorAt(position.x, position.y);
@@ -173,6 +181,17 @@ int ProcessPlayerFieldInput(struct FieldInput *input)
         if (TryStartStepBasedScript(&position, metatileBehavior, playerDirection) == TRUE)
             return TRUE;
     }
+
+    if ((input->checkStandardWildEncounter) && ((input->dpadDirection == 0) || input->dpadDirection == playerDirection))
+    {
+        GetInFrontOfPlayerPosition(&position);
+        metatileBehavior = MapGridGetMetatileBehaviorAt(position.x, position.y);
+        if (TrySetUpWalkIntoSignpostScript(&position, metatileBehavior, playerDirection) == TRUE)
+            return TRUE;
+        GetPlayerPosition(&position);
+        metatileBehavior = MapGridGetMetatileBehaviorAt(position.x, position.y);
+    }
+
     if (input->checkStandardWildEncounter && CheckStandardWildEncounter(metatileBehavior) == TRUE)
         return TRUE;
     if (input->heldDirection && input->dpadDirection == playerDirection)
@@ -183,6 +202,10 @@ int ProcessPlayerFieldInput(struct FieldInput *input)
 
     GetInFrontOfPlayerPosition(&position);
     metatileBehavior = MapGridGetMetatileBehaviorAt(position.x, position.y);
+
+    if (input->heldDirection && (input->dpadDirection == playerDirection) && (TrySetUpWalkIntoSignpostScript(&position, metatileBehavior, playerDirection) == TRUE))
+        return TRUE;
+
     if (input->pressedAButton && TryStartInteractionScript(&position, metatileBehavior, playerDirection) == TRUE)
         return TRUE;
 
@@ -344,6 +367,9 @@ static const u8 *GetInteractedBackgroundEventScript(struct MapPosition *position
     if (bgEvent->bgUnion.script == NULL)
         return EventScript_TestSignpostMsg;
 
+    if (GetFacingSignpostType(metatileBehavior, direction) != NOT_SIGNPOST)
+        SetMsgSignPostAndVarFacing(direction);
+
     switch (bgEvent->kind)
     {
     case BG_EVENT_PLAYER_FACING_ANY:
@@ -1053,3 +1079,113 @@ int SetCableClubWarp(void)
     SetupWarp(&gMapHeader, GetWarpEventAtMapPosition(&gMapHeader, &position), &position);
     return 0;
 }
+
+static bool32 TrySetUpWalkIntoSignpostScript(struct MapPosition *position, u32 metatileBehavior, u32 playerDirection)
+{
+    const u8 *script;
+
+    if ((JOY_HELD(DPAD_LEFT | DPAD_RIGHT)) || (playerDirection != DIR_NORTH))
+        return FALSE;
+
+    switch (GetFacingSignpostType(metatileBehavior, playerDirection))
+    {
+    case MB_POKEMON_CENTER_SIGN:
+        SetUpWalkIntoSignScript(Common_EventScript_ShowPokemonCenterSign, playerDirection);
+        return TRUE;
+    case MB_POKEMART_SIGN:
+        SetUpWalkIntoSignScript(Common_EventScript_ShowPokemartSign, playerDirection);
+        return TRUE;
+    case MB_SIGNPOST:
+        script = GetSignpostScriptAtMapPosition(position);
+        if (script == NULL)
+            return FALSE;
+        SetUpWalkIntoSignScript(script, playerDirection);
+        return TRUE;
+    default:
+        return FALSE;
+    }
+}
+
+static u32 GetFacingSignpostType(u16 metatileBehavior, u32 playerDirection)
+{
+    if (MetatileBehavior_IsPokemonCenterSign(metatileBehavior) == TRUE)
+        return MB_POKEMON_CENTER_SIGN;
+    if (MetatileBehavior_IsPokeMartSign(metatileBehavior) == TRUE)
+        return MB_POKEMART_SIGN;
+    if (MetatileBehavior_IsSignpost(metatileBehavior) == TRUE)
+        return MB_SIGNPOST;
+
+    return NOT_SIGNPOST;
+}
+
+static void SetMsgSignPostAndVarFacing(u32 playerDirection)
+{
+    gWalkAwayFromSignpostTimer = WALK_AWAY_SIGNPOST_FRAMES;
+    gMsgBoxIsCancelable = TRUE;
+    gMsgIsSignPost = TRUE;
+    gSpecialVar_Facing = playerDirection;
+}
+
+static void SetUpWalkIntoSignScript(const u8 *script, u32 playerDirection)
+{
+    ScriptContext_SetupScript(script);
+    SetMsgSignPostAndVarFacing(playerDirection);
+}
+
+static const u8 *GetSignpostScriptAtMapPosition(struct MapPosition *position)
+{
+    const struct BgEvent *event = GetBackgroundEventAtPosition(&gMapHeader, position->x - 7, position->y - 7, position->elevation);
+    if (event == NULL)
+        return NULL;
+    if (event->bgUnion.script != NULL)
+        return event->bgUnion.script;
+    return EventScript_TestSignpostMsg;
+}
+
+static void Task_OpenStartMenu(u8 taskId)
+{
+    if (ArePlayerFieldControlsLocked())
+        return;
+
+    PlaySE(SE_WIN_OPEN);
+    ShowStartMenu();
+    DestroyTask(taskId);
+}
+
+bool32 IsDpadPushedToTurnOrMovePlayer(struct FieldInput *input)
+{
+    return (input->dpadDirection != 0 && GetPlayerFacingDirection() != input->dpadDirection);
+}
+
+void CancelSignPostMessageBox(struct FieldInput *input)
+{
+    if (!ScriptContext_IsEnabled())
+        return;
+
+    if (gWalkAwayFromSignpostTimer)
+    {
+        gWalkAwayFromSignpostTimer--;
+        return;
+    }
+
+    if (!gMsgBoxIsCancelable)
+        return;
+
+    if (IsDpadPushedToTurnOrMovePlayer(input))
+    {
+        ScriptContext_SetupScript(EventScript_CancelMessageBox);
+        LockPlayerFieldControls();
+        return;
+    }
+
+    if (!input->pressedStartButton)
+        return;
+
+    ScriptContext_SetupScript(EventScript_CancelMessageBox);
+    LockPlayerFieldControls();
+
+    if (FuncIsActiveTask(Task_OpenStartMenu))
+        return;
+
+    CreateTask(Task_OpenStartMenu, 8);
+}

src/field_message_box.c

@@ -5,8 +5,11 @@
 #include "text.h"
 #include "match_call.h"
 #include "field_message_box.h"
+#include "text_window.h"
+#include "script.h"
 
 static EWRAM_DATA u8 sFieldMessageBoxMode = 0;
+EWRAM_DATA u8 gWalkAwayFromSignpostTimer = 0;
 
 static void ExpandStringAndStartDrawFieldMessage(const u8 *, bool32);
 static void StartDrawFieldMessage(void);
@@ -29,7 +32,12 @@ static void Task_DrawFieldMessage(u8 taskId)
     switch (task->tState)
     {
         case 0:
-           LoadMessageBoxAndBorderGfx();
+            if (gMsgIsSignPost)
+                LoadSignPostWindowFrameGfx();
+            else
+                LoadMessageBoxAndBorderGfx();
+            task->tState++;
+            break;
            task->tState++;
            break;
         case 1:

src/field_specials.c

@@ -4276,3 +4276,10 @@ void PreparePartyForSkyBattle(void)
     VarSet(B_VAR_SKY_BATTLE,participatingPokemonSlot);
     CompactPartySlots();
 }
+
+void UseBlankMessageToCancelPokemonPic(void)
+{
+    u8 t = EOS;
+    AddTextPrinterParameterized(0, FONT_NORMAL, &t, 0, 1, 0, NULL);
+    ScriptMenu_HidePokemonPic();
+}

src/graphics.c

@@ -2026,6 +2026,7 @@ const u16 gTradeMenuMonBox_Tilemap[] = INCBIN_U16("graphics/trade/menu_mon_box.b
 
 const u16 gMessageBox_Pal[] = INCBIN_U16("graphics/text_window/message_box.gbapal");
 const u8 gMessageBox_Gfx[] = INCBIN_U8("graphics/text_window/message_box.4bpp");
+const u8 gSignpostWindow_Gfx[] = INCBIN_U8("graphics/text_window/signpost.4bpp");
 
 const u32 gWallpaperIcon_Cross[] = INCBIN_U32("graphics/pokemon_storage/wallpapers/icons/cross.4bpp.lz");
 const u32 gWallpaperIcon_Bolt[] = INCBIN_U32("graphics/pokemon_storage/wallpapers/icons/bolt.4bpp.lz");