Merge branch 'master' into battle

2 files changed, 616 insertions, 1 deletions

diff --git a/src/battle_script_commands.c b/src/battle_script_commands.c
index eab99b818..9d0c25fce 100644
--- a/src/battle_script_commands.c
+++ b/src/battle_script_commands.c
@@ -6370,7 +6370,7 @@ void atk7C_trymirrormove(void)
     u16 movesArray[4];
 
     // incorrect pointer load sequence
-    // and incorrect sequence of words in data pool
+    // and incorrect layout in data pools
     for (i = 0; i < 3; ++i)
         movesArray[i] = 0;
     for (validMovesCount = 0, i = 0; i < gBattlersCount; ++i)
diff --git a/src/map_preview_screen.c b/src/map_preview_screen.c
new file mode 100644
index 000000000..b913d5fe8
--- /dev/null
+++ b/src/map_preview_screen.c
@@ -0,0 +1,615 @@
+#include "global.h"
+#include "gpu_regs.h"
+#include "bg.h"
+#include "palette.h"
+#include "malloc.h"
+#include "quest_log.h"
+#include "new_menu_helpers.h"
+#include "window.h"
+#include "region_map.h"
+#include "menu.h"
+#include "field_fadetransition.h"
+#include "field_weather.h"
+#include "script.h"
+#include "overworld.h"
+#include "event_data.h"
+#include "map_preview_screen.h"
+#include "constants/region_map.h"
+
+static EWRAM_DATA bool8 gUnknown_203ABEC = FALSE;
+static EWRAM_DATA bool8 gUnknown_203ABED = FALSE;
+
+static void sub_80F83D0(u8 taskId);
+
+static const u8 gViridianForestMapPreviewPalette[] = INCBIN_U8("data/map_preview/viridian_forest_pal.gbapal");
+static const u8 gViridianForestMapPreviewTiles[] = INCBIN_U8("data/map_preview/viridian_forest_tiles.4bpp.lz");
+static const u8 gViridianForestMapPreviewTilemap[] = INCBIN_U8("data/map_preview/viridian_forest_tilemap.bin");
+static const u8 gRockTunnelMapPreviewPalette[] = INCBIN_U8("data/map_preview/rock_tunnel_pal.gbapal");
+static const u8 gRockTunnelMapPreviewTiles[] = INCBIN_U8("data/map_preview/rock_tunnel_tiles.4bpp.lz");
+static const u8 gRockTunnelMapPreviewTilemap[] = INCBIN_U8("data/map_preview/rock_tunnel_tilemap.bin");
+static const u8 gRocketHideoutMapPreviewPalette[] = INCBIN_U8("data/map_preview/rocket_hideout_pal.gbapal");
+static const u8 gRocketHideoutMapPreviewTiles[] = INCBIN_U8("data/map_preview/rocket_hideout_tiles.4bpp.lz");
+static const u8 gRocketHideoutMapPreviewTilemap[] = INCBIN_U8("data/map_preview/rocket_hideout_tilemap.bin");
+static const u8 gPowerPlantMapPreviewPalette[] = INCBIN_U8("data/map_preview/power_plant_pal.gbapal");
+static const u8 gPowerPlantMapPreviewTiles[] = INCBIN_U8("data/map_preview/power_plant_tiles.4bpp.lz");
+static const u8 gPowerPlantMapPreviewTilemap[] = INCBIN_U8("data/map_preview/power_plant_tilemap.bin");
+static const u8 gPokemonMansionMapPreviewPalette[] = INCBIN_U8("data/map_preview/pokemon_mansion_pal.gbapal");
+static const u8 gPokemonMansionMapPreviewTiles[] = INCBIN_U8("data/map_preview/pokemon_mansion_tiles.4bpp.lz");
+static const u8 gPokemonMansionMapPreviewTilemap[] = INCBIN_U8("data/map_preview/pokemon_mansion_tilemap.bin");
+static const u8 gPokemonTowerMapPreviewPalette[] = INCBIN_U8("data/map_preview/pokemon_tower_pal.gbapal");
+static const u8 gPokemonTowerMapPreviewTiles[] = INCBIN_U8("data/map_preview/pokemon_tower_tiles.4bpp.lz");
+static const u8 gPokemonTowerMapPreviewTilemap[] = INCBIN_U8("data/map_preview/pokemon_tower_tilemap.bin");
+static const u8 gSilphCoMapPreviewPalette[] = INCBIN_U8("data/map_preview/silph_co_pal.gbapal");
+static const u8 gSilphCoMapPreviewTiles[] = INCBIN_U8("data/map_preview/silph_co_tiles.4bpp.lz");
+static const u8 gSilphCoMapPreviewTilemap[] = INCBIN_U8("data/map_preview/silph_co_tilemap.bin");
+static const u8 gMtMoonMapPreviewPalette[] = INCBIN_U8("data/map_preview/mt_moon_pal.gbapal");
+static const u8 gMtMoonMapPreviewTiles[] = INCBIN_U8("data/map_preview/mt_moon_tiles.4bpp.lz");
+static const u8 gMtMoonMapPreviewTilemap[] = INCBIN_U8("data/map_preview/mt_moon_tilemap.bin");
+static const u8 gSeafoamIslandsMapPreviewPalette[] = INCBIN_U8("data/map_preview/seafoam_islands_pal.gbapal");
+static const u8 gSeafoamIslandsMapPreviewTiles[] = INCBIN_U8("data/map_preview/seafoam_islands_tiles.4bpp.lz");
+static const u8 gSeafoamIslandsMapPreviewTilemap[] = INCBIN_U8("data/map_preview/seafoam_islands_tilemap.bin");
+static const u8 gRocketWarehouseMapPreviewPalette[] = INCBIN_U8("data/map_preview/rocket_warehouse_pal.gbapal");
+static const u8 gRocketWarehouseMapPreviewTiles[] = INCBIN_U8("data/map_preview/rocket_warehouse_tiles.4bpp.lz");
+static const u8 gRocketWarehouseMapPreviewTilemap[] = INCBIN_U8("data/map_preview/rocket_warehouse_tilemap.bin");
+static const u8 gKantoVictoryRoadMapPreviewPalette[] = INCBIN_U8("data/map_preview/kanto_victory_road_pal.gbapal");
+static const u8 gKantoVictoryRoadMapPreviewTiles[] = INCBIN_U8("data/map_preview/kanto_victory_road_tiles.4bpp.lz");
+static const u8 gKantoVictoryRoadMapPreviewTilemap[] = INCBIN_U8("data/map_preview/kanto_victory_road_tilemap.bin");
+static const u8 gMtEmberMapPreviewPalette[] = INCBIN_U8("data/map_preview/mt_ember_pal.gbapal");
+static const u8 gMtEmberMapPreviewTiles[] = INCBIN_U8("data/map_preview/mt_ember_tiles.4bpp.lz");
+static const u8 gMtEmberMapPreviewTilemap[] = INCBIN_U8("data/map_preview/mt_ember_tilemap.bin");
+static const u8 gKantoSafariZoneMapPreviewPalette[] = INCBIN_U8("data/map_preview/kanto_safari_zone_pal.gbapal");
+static const u8 gKantoSafariZoneMapPreviewTiles[] = INCBIN_U8("data/map_preview/kanto_safari_zone_tiles.4bpp.lz");
+static const u8 gKantoSafariZoneMapPreviewTilemap[] = INCBIN_U8("data/map_preview/kanto_safari_zone_tilemap.bin");
+static const u8 gMoneanChamberMapPreviewPalette[] = INCBIN_U8("data/map_preview/monean_chamber_pal.gbapal");
+static const u8 gMoneanChamberMapPreviewTiles[] = INCBIN_U8("data/map_preview/monean_chamber_tiles.4bpp.lz");
+static const u8 gMoneanChamberMapPreviewTilemap[] = INCBIN_U8("data/map_preview/monean_chamber_tilemap.bin");
+static const u8 gDottedHoleMapPreviewPalette[] = INCBIN_U8("data/map_preview/dotted_hole_pal.gbapal");
+static const u8 gDottedHoleMapPreviewTiles[] = INCBIN_U8("data/map_preview/dotted_hole_tiles.4bpp.lz");
+static const u8 gDottedHoleMapPreviewTilemap[] = INCBIN_U8("data/map_preview/dotted_hole_tilemap.bin");
+static const u8 gCeruleanCaveMapPreviewPalette[] = INCBIN_U8("data/map_preview/cerulean_cave_pal.gbapal");
+static const u8 gCeruleanCaveMapPreviewTiles[] = INCBIN_U8("data/map_preview/cerulean_cave_tiles.4bpp.lz");
+static const u8 gCeruleanCaveMapPreviewTilemap[] = INCBIN_U8("data/map_preview/cerulean_cave_tilemap.bin");
+static const u8 gDiglettsCaveMapPreviewPalette[] = INCBIN_U8("data/map_preview/digletts_cave_pal.gbapal");
+static const u8 gDiglettsCaveMapPreviewTiles[] = INCBIN_U8("data/map_preview/digletts_cave_tiles.4bpp.lz");
+static const u8 gDiglettsCaveMapPreviewTilemap[] = INCBIN_U8("data/map_preview/digletts_cave_tilemap.bin");
+static const u8 gLostCaveMapPreviewPalette[] = INCBIN_U8("data/map_preview/lost_cave_pal.gbapal");
+static const u8 gLostCaveMapPreviewTiles[] = INCBIN_U8("data/map_preview/lost_cave_tiles.4bpp.lz");
+static const u8 gLostCaveMapPreviewTilemap[] = INCBIN_U8("data/map_preview/lost_cave_tilemap.bin");
+static const u8 gBerryForestMapPreviewPalette[] = INCBIN_U8("data/map_preview/berry_forest_pal.gbapal");
+static const u8 gBerryForestMapPreviewTiles[] = INCBIN_U8("data/map_preview/berry_forest_tiles.4bpp.lz");
+static const u8 gBerryForestMapPreviewTilemap[] = INCBIN_U8("data/map_preview/berry_forest_tilemap.bin");
+static const u8 gIcefallCaveMapPreviewPalette[] = INCBIN_U8("data/map_preview/icefall_cave_pal.gbapal");
+static const u8 gIcefallCaveMapPreviewTiles[] = INCBIN_U8("data/map_preview/icefall_cave_tiles.4bpp.lz");
+static const u8 gIcefallCaveMapPreviewTilemap[] = INCBIN_U8("data/map_preview/icefall_cave_tilemap.bin");
+static const u8 gAlteringCaveMapPreviewPalette[] = INCBIN_U8("data/map_preview/altering_cave_pal.gbapal");
+static const u8 gAlteringCaveMapPreviewTiles[] = INCBIN_U8("data/map_preview/altering_cave_tiles.4bpp.lz");
+static const u8 gAlteringCaveMapPreviewTilemap[] = INCBIN_U8("data/map_preview/altering_cave_tilemap.bin");
+
+static const struct MapPreviewScreen sMapPreviewScreenData[MPS_COUNT] = {
+    [MPS_VIRIDIAN_FOREST] = {
+        .mapsec = MAPSEC_VIRIDIAN_FOREST,
+        .forceFirstTime = TRUE,
+        .flagId = FLAG_WORLD_MAP_VIRIDIAN_FOREST,
+        .tilesptr = gViridianForestMapPreviewTiles,
+        .tilemapptr = gViridianForestMapPreviewTilemap,
+        .palptr = gViridianForestMapPreviewPalette
+    },
+    [MPS_MT_MOON] = {
+        .mapsec = MAPSEC_MT_MOON,
+        .forceFirstTime = FALSE,
+        .flagId = FLAG_WORLD_MAP_MT_MOON_1F,
+        .tilesptr = gMtMoonMapPreviewTiles,
+        .tilemapptr = gMtMoonMapPreviewTilemap,
+        .palptr = gMtMoonMapPreviewPalette
+    },
+    [MPS_DIGLETTS_CAVE] = {
+        .mapsec = MAPSEC_DIGLETTS_CAVE,
+        .forceFirstTime = FALSE,
+        .flagId = FLAG_WORLD_MAP_DIGLETTS_CAVE_B1F,
+        .tilesptr = gDiglettsCaveMapPreviewTiles,
+        .tilemapptr = gDiglettsCaveMapPreviewTilemap,
+        .palptr = gDiglettsCaveMapPreviewPalette
+    },
+    [MPS_ROCK_TUNNEL] = {
+        .mapsec = MAPSEC_ROCK_TUNNEL,
+        .forceFirstTime = FALSE,
+        .flagId = FLAG_WORLD_MAP_ROCK_TUNNEL_1F,
+        .tilesptr = gRockTunnelMapPreviewTiles,
+        .tilemapptr = gRockTunnelMapPreviewTilemap,
+        .palptr = gRockTunnelMapPreviewPalette
+    },
+    [MPS_POKEMON_TOWER] = {
+        .mapsec = MAPSEC_POKEMON_TOWER,
+        .forceFirstTime = FALSE,
+        .flagId = FLAG_WORLD_MAP_POKEMON_TOWER_1F,
+        .tilesptr = gPokemonTowerMapPreviewTiles,
+        .tilemapptr = gPokemonTowerMapPreviewTilemap,
+        .palptr = gPokemonTowerMapPreviewPalette
+    },
+    [MPS_SAFARI_ZONE] = {
+        .mapsec = MAPSEC_KANTO_SAFARI_ZONE,
+        .forceFirstTime = TRUE,
+        .flagId = FLAG_WORLD_MAP_SAFARI_ZONE_CENTER,
+        .tilesptr = gKantoSafariZoneMapPreviewTiles,
+        .tilemapptr = gKantoSafariZoneMapPreviewTilemap,
+        .palptr = gKantoSafariZoneMapPreviewPalette
+    },
+    [MPS_SEAFOAM_ISLANDS] = {
+        .mapsec = MAPSEC_SEAFOAM_ISLANDS,
+        .forceFirstTime = FALSE,
+        .flagId = FLAG_WORLD_MAP_SEAFOAM_ISLANDS_1F,
+        .tilesptr = gSeafoamIslandsMapPreviewTiles,
+        .tilemapptr = gSeafoamIslandsMapPreviewTilemap,
+        .palptr = gSeafoamIslandsMapPreviewPalette
+    },
+    [MPS_POKEMON_MANSION] = {
+        .mapsec = MAPSEC_POKEMON_MANSION,
+        .forceFirstTime = TRUE,
+        .flagId = FLAG_WORLD_MAP_POKEMON_MANSION_1F,
+        .tilesptr = gPokemonMansionMapPreviewTiles,
+        .tilemapptr = gPokemonMansionMapPreviewTilemap,
+        .palptr = gPokemonMansionMapPreviewPalette
+    },
+    [MPS_ROCKET_HIDEOUT] = {
+        .mapsec = MAPSEC_ROCKET_HIDEOUT,
+        .forceFirstTime = TRUE,
+        .flagId = FLAG_WORLD_MAP_ROCKET_HIDEOUT_B1F,
+        .tilesptr = gRocketHideoutMapPreviewTiles,
+        .tilemapptr = gRocketHideoutMapPreviewTilemap,
+        .palptr = gRocketHideoutMapPreviewPalette
+    },
+    [MPS_SILPH_CO] = {
+        .mapsec = MAPSEC_SILPH_CO,
+        .forceFirstTime = FALSE,
+        .flagId = FLAG_WORLD_MAP_SILPH_CO_1F,
+        .tilesptr = gSilphCoMapPreviewTiles,
+        .tilemapptr = gSilphCoMapPreviewTilemap,
+        .palptr = gSilphCoMapPreviewPalette
+    },
+    [MPS_VICTORY_ROAD] = {
+        .mapsec = MAPSEC_KANTO_VICTORY_ROAD,
+        .forceFirstTime = FALSE,
+        .flagId = FLAG_WORLD_MAP_VICTORY_ROAD_1F,
+        .tilesptr = gKantoVictoryRoadMapPreviewTiles,
+        .tilemapptr = gKantoVictoryRoadMapPreviewTilemap,
+        .palptr = gKantoVictoryRoadMapPreviewPalette
+    },
+    [MPS_CERULEAN_CAVE] = {
+        .mapsec = MAPSEC_CERULEAN_CAVE,
+        .forceFirstTime = FALSE,
+        .flagId = FLAG_WORLD_MAP_CERULEAN_CAVE_1F,
+        .tilesptr = gCeruleanCaveMapPreviewTiles,
+        .tilemapptr = gCeruleanCaveMapPreviewTilemap,
+        .palptr = gCeruleanCaveMapPreviewPalette
+    },
+    [MPS_POWER_PLANT] = {
+        .mapsec = MAPSEC_POWER_PLANT,
+        .forceFirstTime = TRUE,
+        .flagId = FLAG_WORLD_MAP_POWER_PLANT,
+        .tilesptr = gPowerPlantMapPreviewTiles,
+        .tilemapptr = gPowerPlantMapPreviewTilemap,
+        .palptr = gPowerPlantMapPreviewPalette
+    },
+    [MPS_MT_EMBER] = {
+        .mapsec = MAPSEC_MT_EMBER,
+        .forceFirstTime = FALSE,
+        .flagId = FLAG_WORLD_MAP_MT_EMBER_EXTERIOR,
+        .tilesptr = gMtEmberMapPreviewTiles,
+        .tilemapptr = gMtEmberMapPreviewTilemap,
+        .palptr = gMtEmberMapPreviewPalette
+    },
+    [MPS_ROCKET_WAREHOUSE] = {
+        .mapsec = MAPSEC_ROCKET_WAREHOUSE,
+        .forceFirstTime = TRUE,
+        .flagId = FLAG_WORLD_MAP_THREE_ISLAND_BERRY_FOREST,
+        .tilesptr = gRocketWarehouseMapPreviewTiles,
+        .tilemapptr = gRocketWarehouseMapPreviewTilemap,
+        .palptr = gRocketWarehouseMapPreviewPalette
+    },
+    [MPS_MONEAN_CHAMBER] = {
+        .mapsec = MAPSEC_MONEAN_CHAMBER,
+        .forceFirstTime = FALSE,
+        .flagId = FLAG_WORLD_MAP_SEVEN_ISLAND_TANOBY_RUINS_MONEAN_CHAMBER,
+        .tilesptr = gMoneanChamberMapPreviewTiles,
+        .tilemapptr = gMoneanChamberMapPreviewTilemap,
+        .palptr = gMoneanChamberMapPreviewPalette
+    },
+    [MPS_DOTTED_HOLE] = {
+        .mapsec = MAPSEC_DOTTED_HOLE,
+        .forceFirstTime = FALSE,
+        .flagId = FLAG_WORLD_MAP_SIX_ISLAND_DOTTED_HOLE_1F,
+        .tilesptr = gDottedHoleMapPreviewTiles,
+        .tilemapptr = gDottedHoleMapPreviewTilemap,
+        .palptr = gDottedHoleMapPreviewPalette
+    },
+    [MPS_BERRY_FOREST] = {
+        .mapsec = MAPSEC_BERRY_FOREST,
+        .forceFirstTime = TRUE,
+        .flagId = FLAG_WORLD_MAP_THREE_ISLAND_BERRY_FOREST,
+        .tilesptr = gBerryForestMapPreviewTiles,
+        .tilemapptr = gBerryForestMapPreviewTilemap,
+        .palptr = gBerryForestMapPreviewPalette
+    },
+    [MPS_ICEFALL_CAVE] = {
+        .mapsec = MAPSEC_ICEFALL_CAVE,
+        .forceFirstTime = FALSE,
+        .flagId = FLAG_WORLD_MAP_FOUR_ISLAND_ICEFALL_CAVE_ENTRANCE,
+        .tilesptr = gIcefallCaveMapPreviewTiles,
+        .tilemapptr = gIcefallCaveMapPreviewTilemap,
+        .palptr = gIcefallCaveMapPreviewPalette
+    },
+    [MPS_LOST_CAVE] = {
+        .mapsec = MAPSEC_LOST_CAVE,
+        .forceFirstTime = FALSE,
+        .flagId = FLAG_WORLD_MAP_FIVE_ISLAND_LOST_CAVE_ENTRANCE,
+        .tilesptr = gLostCaveMapPreviewTiles,
+        .tilemapptr = gLostCaveMapPreviewTilemap,
+        .palptr = gLostCaveMapPreviewPalette
+    },
+    [MPS_ALTERING_CAVE] = {
+        .mapsec = MAPSEC_ALTERING_CAVE,
+        .forceFirstTime = FALSE,
+        .flagId = FLAG_WORLD_MAP_SIX_ISLAND_ALTERING_CAVE,
+        .tilesptr = gAlteringCaveMapPreviewTiles,
+        .tilemapptr = gAlteringCaveMapPreviewTilemap,
+        .palptr = gAlteringCaveMapPreviewPalette
+    },
+    [MPS_PATTERN_BUSH] = {
+        .mapsec = MAPSEC_PATTERN_BUSH,
+        .forceFirstTime = TRUE,
+        .flagId = FLAG_WORLD_MAP_SIX_ISLAND_PATTERN_BUSH,
+        .tilesptr = gViridianForestMapPreviewTiles,
+        .tilemapptr = gViridianForestMapPreviewTilemap,
+        .palptr = gViridianForestMapPreviewPalette
+    },
+    [MPS_LIPTOO_CHAMBER] = {
+        .mapsec = MAPSEC_LIPTOO_CHAMBER,
+        .forceFirstTime = FALSE,
+        .flagId = FLAG_WORLD_MAP_SEVEN_ISLAND_TANOBY_RUINS_MONEAN_CHAMBER,
+        .tilesptr = gMoneanChamberMapPreviewTiles,
+        .tilemapptr = gMoneanChamberMapPreviewTilemap,
+        .palptr = gMoneanChamberMapPreviewPalette
+    },
+    [MPS_WEEPTH_CHAMBER] = {
+        .mapsec = MAPSEC_WEEPTH_CHAMBER,
+        .forceFirstTime = FALSE,
+        .flagId = FLAG_WORLD_MAP_SEVEN_ISLAND_TANOBY_RUINS_MONEAN_CHAMBER,
+        .tilesptr = gMoneanChamberMapPreviewTiles,
+        .tilemapptr = gMoneanChamberMapPreviewTilemap,
+        .palptr = gMoneanChamberMapPreviewPalette
+    },
+    [MPS_TDILFORD_CHAMBER] = {
+        .mapsec = MAPSEC_DILFORD_CHAMBER,
+        .forceFirstTime = FALSE,
+        .flagId = FLAG_WORLD_MAP_SEVEN_ISLAND_TANOBY_RUINS_MONEAN_CHAMBER,
+        .tilesptr = gMoneanChamberMapPreviewTiles,
+        .tilemapptr = gMoneanChamberMapPreviewTilemap,
+        .palptr = gMoneanChamberMapPreviewPalette
+    },
+    [MPS_SCUFIB_CHAMBER] = {
+        .mapsec = MAPSEC_SCUFIB_CHAMBER,
+        .forceFirstTime = FALSE,
+        .flagId = FLAG_WORLD_MAP_SEVEN_ISLAND_TANOBY_RUINS_MONEAN_CHAMBER,
+        .tilesptr = gMoneanChamberMapPreviewTiles,
+        .tilemapptr = gMoneanChamberMapPreviewTilemap,
+        .palptr = gMoneanChamberMapPreviewPalette
+    },
+    [MPS_RIXY_CHAMBER] = {
+        .mapsec = MAPSEC_RIXY_CHAMBER,
+        .forceFirstTime = FALSE,
+        .flagId = FLAG_WORLD_MAP_SEVEN_ISLAND_TANOBY_RUINS_MONEAN_CHAMBER,
+        .tilesptr = gMoneanChamberMapPreviewTiles,
+        .tilemapptr = gMoneanChamberMapPreviewTilemap,
+        .palptr = gMoneanChamberMapPreviewPalette
+    },
+    [MPS_VIAPOIS_CHAMBER] = {
+        .mapsec = MAPSEC_VIAPOIS_CHAMBER,
+        .forceFirstTime = FALSE,
+        .flagId = FLAG_WORLD_MAP_SEVEN_ISLAND_TANOBY_RUINS_MONEAN_CHAMBER,
+        .tilesptr = gMoneanChamberMapPreviewTiles,
+        .tilemapptr = gMoneanChamberMapPreviewTilemap,
+        .palptr = gMoneanChamberMapPreviewPalette
+    }
+};
+
+static const struct WindowTemplate sMapNameWindow = {
+    .bg = 0,
+    .tilemapLeft = 0,
+    .tilemapTop = 0,
+    .width = 13,
+    .height = 2,
+    .paletteNum = 14,
+    .baseBlock = 0x1C2
+};
+
+static const struct BgTemplate sMapPreviewBgTemplate[1] = {
+    {
+        .mapBaseIndex = 31
+    }
+};
+
+static u8 sub_80F80E4(u8 mapsec)
+{
+    s32 i;
+
+    for (i = 0; i < MPS_COUNT; i++)
+    {
+        if (sMapPreviewScreenData[i].mapsec == mapsec)
+        {
+            return i;
+        }
+    }
+    return MPS_COUNT;
+}
+
+bool8 sub_80F8110(u8 mapsec, u8 forceFirstTime)
+{
+    u8 idx;
+
+    idx = sub_80F80E4(mapsec);
+    if (idx != MPS_COUNT)
+    {
+        if (forceFirstTime == 2)
+        {
+            return TRUE;
+        }
+        else
+        {
+            return sMapPreviewScreenData[idx].forceFirstTime == forceFirstTime ? TRUE : FALSE;
+        }
+    }
+    else
+    {
+        return FALSE;
+    }
+}
+
+bool8 sub_80F8154(u8 mapsec, u8 forceFirstTime)
+{
+    if (gUnknown_203ADFA == 2)
+    {
+        return FALSE;
+    }
+    else
+    {
+        return sub_80F8110(mapsec, forceFirstTime);
+    }
+}
+
+void sub_80F8180(void)
+{
+    InitBgsFromTemplates(0, sMapPreviewBgTemplate, NELEMS(sMapPreviewBgTemplate));
+    ShowBg(0);
+}
+
+void sub_80F819C(u8 mapsec)
+{
+    u8 idx;
+
+    idx = sub_80F80E4(mapsec);
+    if (idx != MPS_COUNT)
+    {
+       ResetTempTileDataBuffers();
+       LoadPalette(sMapPreviewScreenData[idx].palptr, 0xD0, 0x60);
+       DecompressAndCopyTileDataToVram(0, sMapPreviewScreenData[idx].tilesptr, 0, 0, 0);
+       if (GetBgTilemapBuffer(0) == NULL)
+       {
+           SetBgTilemapBuffer(0, Alloc(BG_SCREEN_SIZE));
+           gUnknown_203ABED = TRUE;
+       }
+       else
+       {
+           gUnknown_203ABED = FALSE;
+       }
+       CopyToBgTilemapBuffer(0, sMapPreviewScreenData[idx].tilemapptr, 0, 0x000);
+       CopyBgTilemapBufferToVram(0);
+    }
+}
+
+void sub_80F8234(s32 windowId)
+{
+    RemoveWindow(windowId);
+    if (gUnknown_203ABED)
+    {
+        Free(GetBgTilemapBuffer(0));
+    }
+}
+
+bool32 sub_80F8258(void)
+{
+    return FreeTempTileDataBuffersIfPossible();
+}
+
+void sub_80F8268(u8 mapsec)
+{
+    u8 taskId;
+
+    taskId = CreateTask(sub_80F83D0, 0);
+    gTasks[taskId].data[2] = GetBgAttribute(0, BG_ATTR_PRIORITY);
+    gTasks[taskId].data[4] = GetGpuReg(REG_OFFSET_BLDCNT);
+    gTasks[taskId].data[5] = GetGpuReg(REG_OFFSET_BLDALPHA);
+    gTasks[taskId].data[3] = GetGpuReg(REG_OFFSET_DISPCNT);
+    gTasks[taskId].data[6] = GetGpuReg(REG_OFFSET_WININ);
+    gTasks[taskId].data[7] = GetGpuReg(REG_OFFSET_WINOUT);
+    gTasks[taskId].data[10] = sub_80F856C(mapsec);
+    gTasks[taskId].data[8] = 16;
+    gTasks[taskId].data[9] = 0;
+    SetBgAttribute(0, BG_ATTR_PRIORITY, 0);
+    SetGpuReg(REG_OFFSET_BLDCNT, BLDCNT_TGT1_BG0 | BLDCNT_EFFECT_BLEND | BLDCNT_TGT2_BG1 | BLDCNT_TGT2_BG2 | BLDCNT_TGT2_BG3 | BLDCNT_TGT2_OBJ | BLDCNT_TGT2_BD);
+    SetGpuReg(REG_OFFSET_BLDALPHA, BLDALPHA_BLEND(16, 0));
+    SetGpuRegBits(REG_OFFSET_WININ, 0x2020);
+    SetGpuRegBits(REG_OFFSET_WINOUT, 0x0020);
+    gTasks[taskId].data[11] = sub_80F8318(mapsec);
+    ScriptContext2_Enable();
+}
+
+u16 sub_80F8318(u8 mapsec)
+{
+    u16 windowId;
+    u32 xctr;
+    struct TextColor color[0];
+
+    windowId = AddWindow(&sMapNameWindow);
+    FillWindowPixelBuffer(windowId, PIXEL_FILL(1));
+    PutWindowTilemap(windowId);
+    color->fgColor = 1; // Access violation
+    color->bgColor = 4; // Access violation
+    color->shadowColor = 3; // Access violation
+    GetMapName(gStringVar4, mapsec, 0);
+    xctr = 104 - GetStringWidth(2, gStringVar4, 0);
+    AddTextPrinterParameterized4(windowId, 2, xctr / 2, 2, 0, 0, color/* Access violation */, -1, gStringVar4);
+    return windowId;
+}
+
+bool8 sub_80F83B0(void)
+{
+    if (FuncIsActiveTask(sub_80F83D0) == TRUE)
+    {
+        return FALSE;
+    }
+    else
+    {
+        return TRUE;
+    }
+}
+
+static void sub_80F83D0(u8 taskId)
+{
+    s16 * data;
+
+    data = gTasks[taskId].data;
+    switch (data[0])
+    {
+    case 0:
+        if (!sub_80F8258() && !IsDma3ManagerBusyWithBgCopy())
+        {
+            CopyWindowToVram(data[11], 3);
+            data[0]++;
+        }
+        break;
+    case 1:
+        if (!IsDma3ManagerBusyWithBgCopy())
+        {
+            sub_807DC00();
+            data[0]++;
+        }
+        break;
+    case 2:
+        if (sub_807AA70())
+        {
+            Overworld_PlaySpecialMapMusic();
+            data[0]++;
+        }
+        break;
+    case 3:
+        data[1]++;
+        if (data[1] > data[10])
+        {
+            data[1] = 0;
+            data[0]++;
+        }
+        break;
+    case 4:
+        switch (data[1])
+        {
+        case 0:
+            data[9]++;
+            if (data[9] > 16)
+            {
+                data[9] = 16;
+            }
+            break;
+        case 1:
+            data[8]--;
+            if (data[8] < 0)
+            {
+                data[8] = 0;
+            }
+            break;
+        }
+        data[1] = (data[1] + 1) % 3;
+        SetGpuReg(REG_OFFSET_BLDALPHA, BLDALPHA_BLEND(data[8], data[9]));
+        if (data[8] == 0 && data[9] == 16)
+        {
+            FillBgTilemapBufferRect_Palette0(0, 0, 0, 0, 32, 32);
+            CopyBgTilemapBufferToVram(0);
+            data[0]++;
+        }
+        break;
+    case 5:
+        if (!IsDma3ManagerBusyWithBgCopy())
+        {
+            sub_80F8234(data[11]);
+            SetBgAttribute(0, BG_ATTR_PRIORITY, data[2]);
+            SetGpuReg(REG_OFFSET_DISPCNT, data[3]);
+            SetGpuReg(REG_OFFSET_BLDCNT, data[4]);
+            SetGpuReg(REG_OFFSET_BLDALPHA, data[5]);
+            SetGpuReg(REG_OFFSET_WININ, data[6]);
+            SetGpuReg(REG_OFFSET_WINOUT, data[7]);
+            DestroyTask(taskId);
+        }
+        break;
+    }
+}
+
+const struct MapPreviewScreen * sub_80F8544(u8 mapsec)
+{
+    u8 idx;
+
+    idx = sub_80F80E4(mapsec);
+    if (idx == MPS_COUNT)
+    {
+        return NULL;
+    }
+    else
+    {
+        return &sMapPreviewScreenData[idx];
+    }
+}
+
+u16 sub_80F856C(u8 mapsec)
+{
+    u8 idx;
+    u16 flagId;
+
+    idx = sub_80F80E4(mapsec);
+    if (idx == MPS_COUNT)
+    {
+        return 0;
+    }
+    flagId = sMapPreviewScreenData[idx].flagId;
+    if (!sMapPreviewScreenData[idx].forceFirstTime)
+    {
+        if (!FlagGet(flagId))
+        {
+            return 120;
+        }
+        else
+        {
+            return 40;
+        }
+    }
+    else {
+        if (gUnknown_203ABEC)
+        {
+            return 120;
+        }
+        else
+        {
+            return 40;
+        }
+    }
+}
+
+void sub_80F85BC(u16 flagId)
+{
+    if (!FlagGet(flagId))
+    {
+        gUnknown_203ABEC = TRUE;
+    }
+    else
+    {
+        gUnknown_203ABEC = FALSE;
+    }
+    FlagSet(flagId);
+}