diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/field_region_map.c | 6 | ||||
| -rw-r--r-- | src/region_map.c | 387 |
2 files changed, 239 insertions, 154 deletions
diff --git a/src/field_region_map.c b/src/field_region_map.c index 2f73179d9..d70d44d58 100644 --- a/src/field_region_map.c +++ b/src/field_region_map.c @@ -120,9 +120,9 @@ void sub_8170290(void) switch (gUnknown_0203BCD0->state) { case 0: - sub_8122CDC(&gUnknown_0203BCD0->regionMap, 0); + InitRegionMap(&gUnknown_0203BCD0->regionMap, 0); sub_8124288(0, 0); - sub_81240D4(1, 1); + CreateRegionMapCursor(1, 1); gUnknown_0203BCD0->state ++; break; case 1: @@ -166,7 +166,7 @@ void sub_8170290(void) case 6: if (!gPaletteFade.active) { - sub_812305C(); + FreeRegionMapIconResources(); SetMainCallback2(gUnknown_0203BCD0->callback); if (gUnknown_0203BCD0 != NULL) { diff --git a/src/region_map.c b/src/region_map.c index 9da4d7586..c4d15a8ac 100644 --- a/src/region_map.c +++ b/src/region_map.c @@ -2,10 +2,10 @@ // Includes #include "global.h" #include "main.h" -#include "region_map.h" #include "menu.h" #include "palette.h" -#include "bg.h" +#include "trig.h" +#include "region_map.h" // Static type declarations @@ -15,25 +15,26 @@ struct UnkStruct_0203A148 { // Static RAM declarations -EWRAM_DATA struct RegionMap *gUnknown_0203A144 = NULL; +EWRAM_DATA struct RegionMap *gRegionMap = NULL; EWRAM_DATA struct UnkStruct_0203A148 *gUnknown_0203A148 = NULL; // Static ROM declarations -u8 sub_81230C4(void); -u8 sub_8123254(void); -void sub_81236C4(s32 a0, s32 a1, s32 a2, s32 a3, u16 a4, u16 a5, u16 a6); +static u8 ProcessRegionMapInput_Full(void); +static u8 MoveRegionMapCursor_Full(void); +static u8 ProcessRegionMapInput_Zoomed(void); +static u8 MoveRegionMapCursor_Zoomed(void); +void CalcZoomScrollParams(s16 scrollX, s16 scrollY, s16 c, s16 d, u16 e, u16 f, u8 rotation); void sub_81237B4(void); void sub_81238AC(void); u8 get_flagnr_blue_points(u16 mapSecId); u16 sub_8123EB4(u16 mapSecId); void sub_8123FB0(void); -u8 _swiopen(void); -u8 sub_8123334(void); u16 sub_812386C(u16 x, u16 y); void sub_812378C(s16 x, s16 y); void sub_8124238(void); void sub_81243B0(void); +void sub_81243DC(void); // .rodata @@ -45,50 +46,50 @@ extern const u8 gUnknown_0859F650[]; // .text -void sub_8122CDC(struct RegionMap *regionMap, u8 argument) +void InitRegionMap(struct RegionMap *regionMap, bool8 zoomed) { - sub_8122CF8(regionMap, NULL, argument); + sub_8122CF8(regionMap, NULL, zoomed); while (sub_8122DB0()); } -void sub_8122CF8(struct RegionMap *regionMap, struct UnkStruct_8122CF8 *arg1, u8 arg2) +void sub_8122CF8(struct RegionMap *regionMap, struct BgTemplate *template, bool8 zoomed) { - gUnknown_0203A144 = regionMap; - gUnknown_0203A144->initStep = 0; - gUnknown_0203A144->zoomed = arg2; - gUnknown_0203A144->inputCallback = arg2 == TRUE ? sub_8123254 : sub_81230C4; - if (arg1 != NULL) + gRegionMap = regionMap; + gRegionMap->initStep = 0; + gRegionMap->zoomed = zoomed; + gRegionMap->inputCallback = zoomed == TRUE ? ProcessRegionMapInput_Zoomed : ProcessRegionMapInput_Full; + if (template != NULL) { - gUnknown_0203A144->bgNum = arg1->unk_0_0; - gUnknown_0203A144->unk_081 = arg1->unk_0_2; - gUnknown_0203A144->unk_082 = arg1->unk_0_4; - gUnknown_0203A144->unk_083 = TRUE; + gRegionMap->bgNum = template->bg; + gRegionMap->charBaseIdx = template->charBaseIndex; + gRegionMap->mapBaseIdx = template->mapBaseIndex; + gRegionMap->bgManaged = TRUE; } else { - gUnknown_0203A144->bgNum = 2; - gUnknown_0203A144->unk_081 = 2; - gUnknown_0203A144->unk_082 = 28; - gUnknown_0203A144->unk_083 = FALSE; + gRegionMap->bgNum = 2; + gRegionMap->charBaseIdx = 2; + gRegionMap->mapBaseIdx = 28; + gRegionMap->bgManaged = FALSE; } } void sub_8122D88(struct RegionMap *regionMap) { - gUnknown_0203A144 = regionMap; + gRegionMap = regionMap; sub_81238AC(); - gUnknown_0203A144->unk_074 = gUnknown_0203A144->cursorPosX; - gUnknown_0203A144->unk_076 = gUnknown_0203A144->cursorPosY; + gRegionMap->unk_074 = gRegionMap->cursorPosX; + gRegionMap->unk_076 = gRegionMap->cursorPosY; } bool8 sub_8122DB0(void) { - switch (gUnknown_0203A144->initStep) + switch (gRegionMap->initStep) { case 0: - if (gUnknown_0203A144->unk_083) + if (gRegionMap->bgManaged) { - decompress_and_copy_tile_data_to_vram(gUnknown_0203A144->bgNum, gUnknown_0859F77C, 0, 0, 0); + decompress_and_copy_tile_data_to_vram(gRegionMap->bgNum, gUnknown_0859F77C, 0, 0, 0); } else { @@ -96,11 +97,11 @@ bool8 sub_8122DB0(void) } break; case 1: - if (gUnknown_0203A144->unk_083) + if (gRegionMap->bgManaged) { if (!free_temp_tile_data_buffers_if_possible()) { - decompress_and_copy_tile_data_to_vram(gUnknown_0203A144->bgNum, gUnknown_085A04E0, 0, 0, 1); + decompress_and_copy_tile_data_to_vram(gRegionMap->bgNum, gUnknown_085A04E0, 0, 0, 1); } } else @@ -115,54 +116,54 @@ bool8 sub_8122DB0(void) } break; case 3: - LZ77UnCompWram(gUnknown_0859F60C, gUnknown_0203A144->cursorSmallImage); + LZ77UnCompWram(gUnknown_0859F60C, gRegionMap->cursorSmallImage); break; case 4: - LZ77UnCompWram(gUnknown_0859F650, gUnknown_0203A144->cursorLargeImage); + LZ77UnCompWram(gUnknown_0859F650, gRegionMap->cursorLargeImage); break; case 5: sub_81238AC(); - gUnknown_0203A144->unk_074 = gUnknown_0203A144->cursorPosX; - gUnknown_0203A144->unk_076 = gUnknown_0203A144->cursorPosY; - gUnknown_0203A144->mapSecId = sub_8123EB4(gUnknown_0203A144->mapSecId); - gUnknown_0203A144->unk_002 = get_flagnr_blue_points(gUnknown_0203A144->mapSecId); - GetMapName(gUnknown_0203A144->mapSecName, gUnknown_0203A144->mapSecId, 16); + gRegionMap->unk_074 = gRegionMap->cursorPosX; + gRegionMap->unk_076 = gRegionMap->cursorPosY; + gRegionMap->mapSecId = sub_8123EB4(gRegionMap->mapSecId); + gRegionMap->unk_002 = get_flagnr_blue_points(gRegionMap->mapSecId); + GetMapName(gRegionMap->mapSecName, gRegionMap->mapSecId, 16); break; case 6: - if (gUnknown_0203A144->zoomed == FALSE) + if (gRegionMap->zoomed == FALSE) { - sub_81236C4(0, 0, 0, 0, 0x100, 0x100, 0); + CalcZoomScrollParams(0, 0, 0, 0, 0x100, 0x100, 0); } else { - gUnknown_0203A144->scrollX = gUnknown_0203A144->cursorPosX * 8 - 0x34; - gUnknown_0203A144->scrollY = gUnknown_0203A144->cursorPosY * 8 - 0x44; - gUnknown_0203A144->unk_064 = gUnknown_0203A144->cursorPosX; - gUnknown_0203A144->unk_066 = gUnknown_0203A144->cursorPosY; - sub_81236C4(gUnknown_0203A144->scrollX, gUnknown_0203A144->scrollY, 0x38, 0x48, 0x80, 0x80, 0); + gRegionMap->scrollX = gRegionMap->cursorPosX * 8 - 0x34; + gRegionMap->scrollY = gRegionMap->cursorPosY * 8 - 0x44; + gRegionMap->unk_064 = gRegionMap->cursorPosX; + gRegionMap->unk_066 = gRegionMap->cursorPosY; + CalcZoomScrollParams(gRegionMap->scrollX, gRegionMap->scrollY, 0x38, 0x48, 0x80, 0x80, 0); } break; case 7: sub_8123FB0(); sub_81237B4(); - gUnknown_0203A144->cursorSprite = NULL; - gUnknown_0203A144->playerIconSprite = NULL; - gUnknown_0203A144->cursorMovementFrameCounter = 0; - gUnknown_0203A144->blinkPlayerIcon = FALSE; - if (gUnknown_0203A144->unk_083) + gRegionMap->cursorSprite = NULL; + gRegionMap->playerIconSprite = NULL; + gRegionMap->cursorMovementFrameCounter = 0; + gRegionMap->blinkPlayerIcon = FALSE; + if (gRegionMap->bgManaged) { - SetBgAttribute(gUnknown_0203A144->bgNum, BG_CTRL_ATTR_MAPBASEINDEX, 2); - SetBgAttribute(gUnknown_0203A144->bgNum, BG_CTRL_ATTR_VISIBLE, gUnknown_0203A144->unk_081); - SetBgAttribute(gUnknown_0203A144->bgNum, BG_CTRL_ATTR_CHARBASEINDEX, gUnknown_0203A144->unk_082); - SetBgAttribute(gUnknown_0203A144->bgNum, BG_CTRL_ATTR_PRIORITY, 1); - SetBgAttribute(gUnknown_0203A144->bgNum, BG_CTRL_ATTR_SCREENSIZE, 1); + SetBgAttribute(gRegionMap->bgNum, BG_CTRL_ATTR_MAPBASEINDEX, 2); + SetBgAttribute(gRegionMap->bgNum, BG_CTRL_ATTR_VISIBLE, gRegionMap->charBaseIdx); + SetBgAttribute(gRegionMap->bgNum, BG_CTRL_ATTR_CHARBASEINDEX, gRegionMap->mapBaseIdx); + SetBgAttribute(gRegionMap->bgNum, BG_CTRL_ATTR_PRIORITY, 1); + SetBgAttribute(gRegionMap->bgNum, BG_CTRL_ATTR_SCREENSIZE, 1); } - gUnknown_0203A144->initStep ++; + gRegionMap->initStep ++; return FALSE; default: return FALSE; } - gUnknown_0203A144->initStep ++; + gRegionMap->initStep ++; return TRUE; } @@ -172,52 +173,52 @@ void sub_8123030(u16 a0, u32 a1) CpuCopy16(gPlttBufferFaded + 0x70, gPlttBufferUnfaded + 0x70, 0x60); } -void sub_812305C(void) +void FreeRegionMapIconResources(void) { - if (gUnknown_0203A144->cursorSprite != NULL) + if (gRegionMap->cursorSprite != NULL) { - DestroySprite(gUnknown_0203A144->cursorSprite); - FreeSpriteTilesByTag(gUnknown_0203A144->cursorTileTag); - FreeSpritePaletteByTag(gUnknown_0203A144->cursorPaletteTag); + DestroySprite(gRegionMap->cursorSprite); + FreeSpriteTilesByTag(gRegionMap->cursorTileTag); + FreeSpritePaletteByTag(gRegionMap->cursorPaletteTag); } - if (gUnknown_0203A144->playerIconSprite != NULL) + if (gRegionMap->playerIconSprite != NULL) { - DestroySprite(gUnknown_0203A144->playerIconSprite); - FreeSpriteTilesByTag(gUnknown_0203A144->playerIconTileTag); - FreeSpritePaletteByTag(gUnknown_0203A144->playerIconPaletteTag); + DestroySprite(gRegionMap->playerIconSprite); + FreeSpriteTilesByTag(gRegionMap->playerIconTileTag); + FreeSpritePaletteByTag(gRegionMap->playerIconPaletteTag); } } u8 sub_81230AC(void) { - return gUnknown_0203A144->inputCallback(); + return gRegionMap->inputCallback(); } -u8 sub_81230C4(void) +static u8 ProcessRegionMapInput_Full(void) { u8 input; input = INPUT_EVENT_NONE; - gUnknown_0203A144->cursorDeltaX = 0; - gUnknown_0203A144->cursorDeltaY = 0; - if (gMain.heldKeys & DPAD_UP && gUnknown_0203A144->cursorPosY > 2) + gRegionMap->cursorDeltaX = 0; + gRegionMap->cursorDeltaY = 0; + if (gMain.heldKeys & DPAD_UP && gRegionMap->cursorPosY > 2) { - gUnknown_0203A144->cursorDeltaY = -1; + gRegionMap->cursorDeltaY = -1; input = INPUT_EVENT_MOVE_START; } - if (gMain.heldKeys & DPAD_DOWN && gUnknown_0203A144->cursorPosY < 16) + if (gMain.heldKeys & DPAD_DOWN && gRegionMap->cursorPosY < 16) { - gUnknown_0203A144->cursorDeltaY = +1; + gRegionMap->cursorDeltaY = +1; input = INPUT_EVENT_MOVE_START; } - if (gMain.heldKeys & DPAD_LEFT && gUnknown_0203A144->cursorPosX > 1) + if (gMain.heldKeys & DPAD_LEFT && gRegionMap->cursorPosX > 1) { - gUnknown_0203A144->cursorDeltaX = -1; + gRegionMap->cursorDeltaX = -1; input = INPUT_EVENT_MOVE_START; } - if (gMain.heldKeys & DPAD_RIGHT && gUnknown_0203A144->cursorPosX < 28) + if (gMain.heldKeys & DPAD_RIGHT && gRegionMap->cursorPosX < 28) { - gUnknown_0203A144->cursorDeltaX = +1; + gRegionMap->cursorDeltaX = +1; input = INPUT_EVENT_MOVE_START; } if (gMain.newKeys & A_BUTTON) @@ -230,73 +231,73 @@ u8 sub_81230C4(void) } if (input == INPUT_EVENT_MOVE_START) { - gUnknown_0203A144->cursorMovementFrameCounter = 4; - gUnknown_0203A144->inputCallback = _swiopen; + gRegionMap->cursorMovementFrameCounter = 4; + gRegionMap->inputCallback = MoveRegionMapCursor_Full; } return input; } -u8 _swiopen(void) +static u8 MoveRegionMapCursor_Full(void) { u16 mapSecId; - if (gUnknown_0203A144->cursorMovementFrameCounter != 0) + if (gRegionMap->cursorMovementFrameCounter != 0) { return INPUT_EVENT_MOVE_CONT; } - if (gUnknown_0203A144->cursorDeltaX > 0) + if (gRegionMap->cursorDeltaX > 0) { - gUnknown_0203A144->cursorPosX ++; + gRegionMap->cursorPosX ++; } - if (gUnknown_0203A144->cursorDeltaX < 0) + if (gRegionMap->cursorDeltaX < 0) { - gUnknown_0203A144->cursorPosX --; + gRegionMap->cursorPosX --; } - if (gUnknown_0203A144->cursorDeltaY > 0) + if (gRegionMap->cursorDeltaY > 0) { - gUnknown_0203A144->cursorPosY ++; + gRegionMap->cursorPosY ++; } - if (gUnknown_0203A144->cursorDeltaY < 0) + if (gRegionMap->cursorDeltaY < 0) { - gUnknown_0203A144->cursorPosY --; + gRegionMap->cursorPosY --; } - mapSecId = sub_812386C(gUnknown_0203A144->cursorPosX, gUnknown_0203A144->cursorPosY); - gUnknown_0203A144->unk_002 = get_flagnr_blue_points(mapSecId); - if (mapSecId != gUnknown_0203A144->mapSecId) + mapSecId = sub_812386C(gRegionMap->cursorPosX, gRegionMap->cursorPosY); + gRegionMap->unk_002 = get_flagnr_blue_points(mapSecId); + if (mapSecId != gRegionMap->mapSecId) { - gUnknown_0203A144->mapSecId = mapSecId; - GetMapName(gUnknown_0203A144->mapSecName, gUnknown_0203A144->mapSecId, 16); + gRegionMap->mapSecId = mapSecId; + GetMapName(gRegionMap->mapSecName, gRegionMap->mapSecId, 16); } sub_8123FB0(); - gUnknown_0203A144->inputCallback = sub_81230C4; + gRegionMap->inputCallback = ProcessRegionMapInput_Full; return INPUT_EVENT_MOVE_END; } -u8 sub_8123254(void) +static u8 ProcessRegionMapInput_Zoomed(void) { u8 input; input = INPUT_EVENT_NONE; - gUnknown_0203A144->zoomedCursorDeltaX = 0; - gUnknown_0203A144->zoomedCursorDeltaY = 0; - if (gMain.heldKeys & DPAD_UP && gUnknown_0203A144->scrollY > -0x34) + gRegionMap->zoomedCursorDeltaX = 0; + gRegionMap->zoomedCursorDeltaY = 0; + if (gMain.heldKeys & DPAD_UP && gRegionMap->scrollY > -0x34) { - gUnknown_0203A144->zoomedCursorDeltaY = -1; + gRegionMap->zoomedCursorDeltaY = -1; input = INPUT_EVENT_MOVE_START; } - if (gMain.heldKeys & DPAD_DOWN && gUnknown_0203A144->scrollY < 0x3c) + if (gMain.heldKeys & DPAD_DOWN && gRegionMap->scrollY < 0x3c) { - gUnknown_0203A144->zoomedCursorDeltaY = +1; + gRegionMap->zoomedCursorDeltaY = +1; input = INPUT_EVENT_MOVE_START; } - if (gMain.heldKeys & DPAD_LEFT && gUnknown_0203A144->scrollX > -0x2c) + if (gMain.heldKeys & DPAD_LEFT && gRegionMap->scrollX > -0x2c) { - gUnknown_0203A144->zoomedCursorDeltaX = -1; + gRegionMap->zoomedCursorDeltaX = -1; input = INPUT_EVENT_MOVE_START; } - if (gMain.heldKeys & DPAD_RIGHT && gUnknown_0203A144->scrollX < 0xac) + if (gMain.heldKeys & DPAD_RIGHT && gRegionMap->scrollX < 0xac) { - gUnknown_0203A144->zoomedCursorDeltaX = +1; + gRegionMap->zoomedCursorDeltaX = +1; input = INPUT_EVENT_MOVE_START; } if (gMain.newKeys & A_BUTTON) @@ -309,41 +310,41 @@ u8 sub_8123254(void) } if (input == INPUT_EVENT_MOVE_START) { - gUnknown_0203A144->inputCallback = sub_8123334; - gUnknown_0203A144->zoomedCursorMovementFrameCounter = 0; + gRegionMap->inputCallback = MoveRegionMapCursor_Zoomed; + gRegionMap->zoomedCursorMovementFrameCounter = 0; } return input; } -u8 sub_8123334(void) +static u8 MoveRegionMapCursor_Zoomed(void) { u16 x; u16 y; u16 mapSecId; - gUnknown_0203A144->scrollY += gUnknown_0203A144->zoomedCursorDeltaY; - gUnknown_0203A144->scrollX += gUnknown_0203A144->zoomedCursorDeltaX; - sub_812378C(gUnknown_0203A144->scrollX, gUnknown_0203A144->scrollY); - gUnknown_0203A144->zoomedCursorMovementFrameCounter ++; - if (gUnknown_0203A144->zoomedCursorMovementFrameCounter == 8) + gRegionMap->scrollY += gRegionMap->zoomedCursorDeltaY; + gRegionMap->scrollX += gRegionMap->zoomedCursorDeltaX; + sub_812378C(gRegionMap->scrollX, gRegionMap->scrollY); + gRegionMap->zoomedCursorMovementFrameCounter ++; + if (gRegionMap->zoomedCursorMovementFrameCounter == 8) { - x = (gUnknown_0203A144->scrollX + 0x2c) / 8 + 1; - y = (gUnknown_0203A144->scrollY + 0x34) / 8 + 2; - if (x != gUnknown_0203A144->unk_064 || y != gUnknown_0203A144->unk_066) + x = (gRegionMap->scrollX + 0x2c) / 8 + 1; + y = (gRegionMap->scrollY + 0x34) / 8 + 2; + if (x != gRegionMap->unk_064 || y != gRegionMap->unk_066) { - gUnknown_0203A144->unk_064 = x; - gUnknown_0203A144->unk_066 = y; + gRegionMap->unk_064 = x; + gRegionMap->unk_066 = y; mapSecId = sub_812386C(x, y); - gUnknown_0203A144->unk_002 = get_flagnr_blue_points(mapSecId); - if (mapSecId != gUnknown_0203A144->mapSecId) + gRegionMap->unk_002 = get_flagnr_blue_points(mapSecId); + if (mapSecId != gRegionMap->mapSecId) { - gUnknown_0203A144->mapSecId = mapSecId; - GetMapName(gUnknown_0203A144->mapSecName, gUnknown_0203A144->mapSecId, 16); + gRegionMap->mapSecId = mapSecId; + GetMapName(gRegionMap->mapSecName, gRegionMap->mapSecId, 16); } sub_8123FB0(); } - gUnknown_0203A144->zoomedCursorMovementFrameCounter = 0; - gUnknown_0203A144->inputCallback = sub_8123254; + gRegionMap->zoomedCursorMovementFrameCounter = 0; + gRegionMap->inputCallback = ProcessRegionMapInput_Zoomed; return INPUT_EVENT_MOVE_END; } return INPUT_EVENT_MOVE_CONT; @@ -351,35 +352,119 @@ u8 sub_8123334(void) void sub_8123418(void) { - if (gUnknown_0203A144->zoomed == FALSE) + if (gRegionMap->zoomed == FALSE) { - gUnknown_0203A144->scrollY = 0; - gUnknown_0203A144->scrollX = 0; - gUnknown_0203A144->unk_040 = 0; - gUnknown_0203A144->unk_03c = 0; - gUnknown_0203A144->unk_060 = gUnknown_0203A144->cursorPosX * 8 - 0x34; - gUnknown_0203A144->unk_062 = gUnknown_0203A144->cursorPosY * 8 - 0x44; - gUnknown_0203A144->unk_044 = (gUnknown_0203A144->unk_060 << 8) / 16; - gUnknown_0203A144->unk_048 = (gUnknown_0203A144->unk_062 << 8) / 16; - gUnknown_0203A144->unk_064 = gUnknown_0203A144->cursorPosX; - gUnknown_0203A144->unk_066 = gUnknown_0203A144->cursorPosY; - gUnknown_0203A144->unk_04c = 0x10000; - gUnknown_0203A144->unk_050 = -0x800; + gRegionMap->scrollY = 0; + gRegionMap->scrollX = 0; + gRegionMap->unk_040 = 0; + gRegionMap->unk_03c = 0; + gRegionMap->unk_060 = gRegionMap->cursorPosX * 8 - 0x34; + gRegionMap->unk_062 = gRegionMap->cursorPosY * 8 - 0x44; + gRegionMap->unk_044 = (gRegionMap->unk_060 << 8) / 16; + gRegionMap->unk_048 = (gRegionMap->unk_062 << 8) / 16; + gRegionMap->unk_064 = gRegionMap->cursorPosX; + gRegionMap->unk_066 = gRegionMap->cursorPosY; + gRegionMap->unk_04c = 0x10000; + gRegionMap->unk_050 = -0x800; } else { - gUnknown_0203A144->unk_03c = gUnknown_0203A144->scrollX * 256; - gUnknown_0203A144->unk_040 = gUnknown_0203A144->scrollY * 256; - gUnknown_0203A144->unk_060 = 0; - gUnknown_0203A144->unk_062 = 0; - gUnknown_0203A144->unk_044 = -(gUnknown_0203A144->unk_03c / 16); - gUnknown_0203A144->unk_048 = -(gUnknown_0203A144->unk_040 / 16); - gUnknown_0203A144->cursorPosX = gUnknown_0203A144->unk_064; - gUnknown_0203A144->cursorPosY = gUnknown_0203A144->unk_066; - gUnknown_0203A144->unk_04c = 0x8000; - gUnknown_0203A144->unk_050 = 0x800; + gRegionMap->unk_03c = gRegionMap->scrollX * 256; + gRegionMap->unk_040 = gRegionMap->scrollY * 256; + gRegionMap->unk_060 = 0; + gRegionMap->unk_062 = 0; + gRegionMap->unk_044 = -(gRegionMap->unk_03c / 16); + gRegionMap->unk_048 = -(gRegionMap->unk_040 / 16); + gRegionMap->cursorPosX = gRegionMap->unk_064; + gRegionMap->cursorPosY = gRegionMap->unk_066; + gRegionMap->unk_04c = 0x8000; + gRegionMap->unk_050 = 0x800; } - gUnknown_0203A144->unk_06e = 0; + gRegionMap->unk_06e = 0; sub_8124238(); sub_81243B0(); } + +u8 sub_8123514(void) +{ + u8 r4; + + if (gRegionMap->unk_06e >= 16) + return 0; + gRegionMap->unk_06e ++; + if (gRegionMap->unk_06e == 16) + { + gRegionMap->unk_044 = 0; + gRegionMap->unk_048 = 0; + gRegionMap->scrollX = gRegionMap->unk_060; + gRegionMap->scrollY = gRegionMap->unk_062; + gRegionMap->unk_04c = (gRegionMap->zoomed == FALSE) ? (128 << 8) : (256 << 8); + gRegionMap->zoomed = !gRegionMap->zoomed; + gRegionMap->inputCallback = (gRegionMap->zoomed == FALSE) ? ProcessRegionMapInput_Full : ProcessRegionMapInput_Zoomed; + CreateRegionMapCursor(gRegionMap->cursorTileTag, gRegionMap->cursorPaletteTag); + sub_81243DC(); + r4 = 0; + } + else + { + gRegionMap->unk_03c += gRegionMap->unk_044; + gRegionMap->unk_040 += gRegionMap->unk_048; + gRegionMap->scrollX = gRegionMap->unk_03c >> 8; + gRegionMap->scrollY = gRegionMap->unk_040 >> 8; + gRegionMap->unk_04c += gRegionMap->unk_050; + if ((gRegionMap->unk_044 < 0 && gRegionMap->scrollX < gRegionMap->unk_060) + || (gRegionMap->unk_044 > 0 && gRegionMap->scrollX > gRegionMap->unk_060)) + { + gRegionMap->scrollX = gRegionMap->unk_060; + gRegionMap->unk_044 = 0; + } + if ((gRegionMap->unk_048 < 0 && gRegionMap->scrollY < gRegionMap->unk_062) + || (gRegionMap->unk_048 > 0 && gRegionMap->scrollY > gRegionMap->unk_062)) + { + gRegionMap->scrollY = gRegionMap->unk_062; + gRegionMap->unk_048 = 0; + } + if (gRegionMap->zoomed == FALSE) + { + if (gRegionMap->unk_04c < (128 << 8)) + { + gRegionMap->unk_04c = (128 << 8); + gRegionMap->unk_050 = 0; + } + } + else + { + if (gRegionMap->unk_04c > (256 << 8)) + { + gRegionMap->unk_04c = (256 << 8); + gRegionMap->unk_050 = 0; + } + } + r4 = 1; + } + CalcZoomScrollParams(gRegionMap->scrollX, gRegionMap->scrollY, 0x38, 0x48, gRegionMap->unk_04c >> 8, gRegionMap->unk_04c >> 8, 0); + return r4; +} + +void CalcZoomScrollParams(s16 scrollX, s16 scrollY, s16 c, s16 d, u16 e, u16 f, u8 rotation) +{ + s32 var1; + s32 var2; + s32 var3; + s32 var4; + + gRegionMap->bg2pa = e * gSineTable[rotation + 64] >> 8; + gRegionMap->bg2pb = e * -gSineTable[rotation] >> 8; + gRegionMap->bg2pc = f * gSineTable[rotation] >> 8; + gRegionMap->bg2pd = f * gSineTable[rotation + 64] >> 8; + + var1 = (scrollX << 8) + (c << 8); + var2 = d * gRegionMap->bg2pc + gRegionMap->bg2pa * c; + gRegionMap->bg2x = var1 - var2; + + var3 = (scrollY << 8) + (d << 8); + var4 = gRegionMap->bg2pd * d + gRegionMap->bg2pb * c; + gRegionMap->bg2y = var3 - var4; + + gRegionMap->needUpdateVideoRegs = TRUE; +} |