Decompile seagallop

1 files changed, 444 insertions, 0 deletions

diff --git a/src/seagallop.c b/src/seagallop.c
new file mode 100644
index 000000000..dc329e940
--- /dev/null
+++ b/src/seagallop.c
@@ -0,0 +1,444 @@
+#include "global.h"
+#include "gpu_regs.h"
+#include "bg.h"
+#include "palette.h"
+#include "malloc.h"
+#include "scanline_effect.h"
+#include "battle_dome_cards.h"
+#include "window.h"
+#include "text_window.h"
+#include "sound.h"
+#include "task.h"
+#include "help_system.h"
+#include "overworld.h"
+#include "event_data.h"
+#include "field_fadetransition.h"
+#include "field_weather.h"
+#include "constants/songs.h"
+#include "constants/maps.h"
+#include "seagallop.h"
+
+EWRAM_DATA void * gUnknown_203F3D0 = NULL;
+
+void sub_8146E94(void);
+void sub_8147058(void);
+void sub_814706C(void);
+void sub_8147084(u8 taskId);
+void sub_81470CC(u8 taskId);
+void sub_8147108(u8 taskId);
+void sub_8147140(void);
+void sub_81471C4(void);
+void sub_81472FC(void);
+void sub_814731C(void);
+void sub_814732C(void);
+void sub_8147384(void);
+void sub_81473A0(void);
+void sub_81473C4(void);
+void sub_8147418(struct Sprite * sprite);
+void sub_814746C(s16 x);
+void sub_81474B0(struct Sprite * sprite);
+bool8 sub_81474CC(void);
+
+const u16 gUnknown_8468C98[] = INCBIN_U16("data/seagallop/unk_8468C98.4bpp");
+const u16 gUnknown_84691B8[] = INCBIN_U16("data/seagallop/unk_84691B8.gbapal");
+const u16 gUnknown_84691D8[] = INCBIN_U16("data/seagallop/unk_84691D8.bin");
+const u16 gUnknown_84699D8[] = INCBIN_U16("data/seagallop/unk_84699D8.bin");
+const u16 gUnknown_846A1D8[] = INCBIN_U16("data/seagallop/unk_846A1D8.4bpp");
+const u16 gUnknown_846A6D8[] = INCBIN_U16("data/seagallop/unk_846A6D8.gbapal");
+const u16 gUnknown_846A6F8[] = INCBIN_U16("data/seagallop/unk_846A6F8.4bpp");
+
+const struct BgTemplate gUnknown_846AEF8[] = {
+    {
+        .bg = 3,
+        .charBaseIndex = 3,
+        .mapBaseIndex = 30,
+        .screenSize = 0,
+        .paletteMode = 0,
+        .priority = 3,
+        .baseTile = 0x000
+    }
+};
+
+const s8 gUnknown_846AEFC[][4] = {
+    {MAP(VERMILIONCITY), 0x17, 0x20},
+    {MAP(ONEISLAND_HARBOR), 0x08, 0x05},
+    {MAP(TWOISLAND_HARBOR), 0x08, 0x05},
+    {MAP(THREEISLAND_HARBOR), 0x08, 0x05},
+    {MAP(FOURISLAND_HARBOR), 0x08, 0x05},
+    {MAP(FIVEISLAND_HARBOR), 0x08, 0x05},
+    {MAP(SIXISLAND_HARBOR), 0x08, 0x05},
+    {MAP(SEVENISLAND_HARBOR), 0x08, 0x05},
+    {MAP(CINNABARISLAND), 0x15, 0x07},
+    {MAP(NAVELROCK_HARBOR), 0x08, 0x05},
+    {MAP(BIRTHISLAND_HARBOR), 0x08, 0x05}
+};
+
+const u16 gUnknown_846AF28[] = {
+    0x06fe,
+    0x06fc,
+    0x06f8,
+    0x06f0,
+    0x06e0,
+    0x04c0,
+    0x0400,
+    0x0440,
+    0x07ff,
+    0x06e0,
+    0x0000
+};
+
+const union AnimCmd gUnknown_846AF40[] = {
+    ANIMCMD_FRAME(0, 10),
+    ANIMCMD_END
+};
+
+const union AnimCmd gUnknown_846AF48[] = {
+    ANIMCMD_FRAME(0, 10, .hFlip = TRUE),
+    ANIMCMD_END
+};
+
+const union AnimCmd *const gUnknown_846AF50[] = {
+    gUnknown_846AF40,
+    gUnknown_846AF48
+};
+
+const struct OamData gOamData_846AF58 = {
+    .size = 3
+};
+
+const struct SpriteTemplate gUnknown_846AF60 = {
+    3000,
+    3000,
+    &gOamData_846AF58,
+    gUnknown_846AF50,
+    NULL,
+    gDummySpriteAffineAnimTable,
+    sub_8147418
+};
+
+const struct SpriteSheet gUnknown_846AF78[] = {
+    {(void *)gUnknown_846A6F8, 0x0800, 4000},
+    {(void *)gUnknown_846A1D8, 0x0500, 3000},
+    {}
+};
+
+const struct SpritePalette gUnknown_846AF90[] = {
+    {gUnknown_846A6D8, 3000},
+    {}
+};
+
+const union AnimCmd gUnknown_846AFA0[] = {
+    ANIMCMD_FRAME(0x00, 0x14),
+    ANIMCMD_FRAME(0x10, 0x14),
+    ANIMCMD_FRAME(0x20, 0x0f),
+    ANIMCMD_END,
+};
+
+const union AnimCmd gUnknown_846AFB0[] = {
+    ANIMCMD_FRAME(0x00, 0x14, .hFlip = TRUE),
+    ANIMCMD_FRAME(0x10, 0x14, .hFlip = TRUE),
+    ANIMCMD_FRAME(0x20, 0x0f, .hFlip = TRUE),
+    ANIMCMD_END,
+};
+
+const union AnimCmd *const gUnknown_846AFC0[] = {
+    gUnknown_846AFA0,
+    gUnknown_846AFB0
+};
+
+const struct OamData gOamData_846AFC8 = {
+    .size = 2
+};
+
+const struct SpriteTemplate gUnknown_846AFD0 = {
+    4000,
+    3000,
+    &gOamData_846AFC8,
+    gUnknown_846AFC0,
+    NULL,
+    gDummySpriteAffineAnimTable,
+    sub_81474B0
+};
+
+void sub_8146E78(void)
+{
+    SetVBlankCallback(NULL);
+    sub_812B478();
+    SetMainCallback2(sub_8146E94);
+}
+
+void sub_8146E94(void)
+{
+    void ** ptr;
+    switch (gMain.state)
+    {
+    case 0:
+        SetVBlankCallback(NULL); // redundant since the setup routine already did this
+        sub_81471C4();
+        gMain.state++;
+        break;
+    case 1:
+        sub_81472FC();
+        gMain.state++;
+        break;
+    case 2:
+        ptr = &gUnknown_203F3D0;
+        *ptr = AllocZeroed(0x800);
+        ResetBgsAndClearDma3BusyFlags(0);
+        InitBgsFromTemplates(0, gUnknown_846AEF8, NELEMS(gUnknown_846AEF8));
+        SetBgTilemapBuffer(3, *ptr);
+        sub_814732C();
+        gMain.state++;
+        break;
+    case 3:
+        LoadBgTiles(3, gUnknown_8468C98, sizeof(gUnknown_8468C98), 0);
+        if (sub_81474CC() == TRUE)
+        {
+            CopyToBgTilemapBufferRect(3, gUnknown_84699D8, 0, 0, 32, 32);
+        }
+        else
+        {
+            CopyToBgTilemapBufferRect(3, gUnknown_84691D8, 0, 0, 32, 32);
+        }
+        LoadPalette(gUnknown_84691B8, 0x40, 0x20);
+        LoadPalette(stdpal_get(2), 0xF0, 0x20);
+        gMain.state++;
+        break;
+    case 4:
+        if (IsDma3ManagerBusyWithBgCopy() != TRUE)
+        {
+            ShowBg(0);
+            ShowBg(3);
+            CopyBgTilemapBufferToVram(3);
+            gMain.state++;
+        }
+        break;
+    case 5:
+        sub_8147384();
+        BlendPalettes(0xFFFFFFFF, 16, RGB_BLACK);
+        gMain.state++;
+        break;
+    case 6:
+        BeginNormalPaletteFade(0xFFFFFFFF, 0, 16, 0, RGB_BLACK);
+        gMain.state++;
+        break;
+    case 7:
+        sub_814731C();
+        SetVBlankCallback(sub_8147058);
+        PlaySE(SE_NAMINORI);
+        sub_81473C4();
+        SetGpuRegBits(REG_OFFSET_DISPCNT, DISPCNT_WIN0_ON);
+        SetGpuReg(REG_OFFSET_WININ, 0x3F);
+        SetGpuReg(REG_OFFSET_WINOUT, 0x00);
+        SetGpuReg(REG_OFFSET_WIN0H, 0x00F0);
+        SetGpuReg(REG_OFFSET_WIN0V, 0x1888);
+        CreateTask(sub_8147084, 8);
+        SetMainCallback2(sub_814706C);
+        gMain.state = 0;
+        break;
+    }
+}
+
+void sub_8147058(void)
+{
+    LoadOam();
+    ProcessSpriteCopyRequests();
+    TransferPlttBuffer();
+}
+
+void sub_814706C(void)
+{
+    RunTasks();
+    AnimateSprites();
+    BuildOamBuffer();
+    UpdatePaletteFade();
+}
+
+void sub_8147084(u8 taskId)
+{
+    gTasks[taskId].func = sub_81470CC;
+}
+
+void sub_81470A0(void)
+{
+    if (sub_81474CC() == TRUE)
+    {
+        ChangeBgX(3, 0x600, 1);
+    }
+    else
+    {
+        ChangeBgX(3, 0x600, 2);
+    }
+}
+
+void sub_81470CC(u8 taskId)
+{
+    struct Task * task = &gTasks[taskId];
+
+    sub_81470A0();
+    if (++task->data[1] == 140)
+    {
+        Overworld_FadeOutMapMusic();
+        sub_807DC18();
+        task->func = sub_8147108;
+    }
+}
+
+void sub_8147108(u8 taskId)
+{
+    sub_81470A0();
+    if (sub_8055FC4() && !gPaletteFade.active)
+    {
+        sub_8147140();
+        sub_812B484();
+        DestroyTask(taskId);
+    }
+}
+
+void sub_8147140(void)
+{
+    const s8 * warpInfo;
+
+    if (gSpecialVar_0x8006 >= NELEMS(gUnknown_846AEFC))
+        gSpecialVar_0x8006 = 0;
+
+    warpInfo = gUnknown_846AEFC[gSpecialVar_0x8006];
+    Overworld_SetWarpDestination(warpInfo[0], warpInfo[1], -1, warpInfo[2], warpInfo[3]);
+    play_some_sound();
+    PlaySE(SE_KAIDAN);
+    gUnknown_3005020 = sub_807DF64;
+    warp_in();
+    SetMainCallback2(sub_805671C);
+    ResetInitialPlayerAvatarState();
+    sub_81473A0();
+    Free(gUnknown_203F3D0);
+    FreeAllWindowBuffers();
+}
+
+void sub_81471C4(void)
+{
+    void * dest = (void *) VRAM;
+    DmaClearLarge16(3, dest, VRAM_SIZE, 0x1000);
+
+    DmaClear32(3, (void *)OAM, OAM_SIZE);
+    DmaClear16(3, (void *)PLTT, PLTT_SIZE);
+    SetGpuReg(REG_OFFSET_DISPCNT, 0);
+    SetGpuReg(REG_OFFSET_BG0CNT, 0);
+    SetGpuReg(REG_OFFSET_BG0HOFS, 0);
+    SetGpuReg(REG_OFFSET_BG0VOFS, 0);
+    SetGpuReg(REG_OFFSET_BG1CNT, 0);
+    SetGpuReg(REG_OFFSET_BG1HOFS, 0);
+    SetGpuReg(REG_OFFSET_BG1VOFS, 0);
+    SetGpuReg(REG_OFFSET_BG2CNT, 0);
+    SetGpuReg(REG_OFFSET_BG2HOFS, 0);
+    SetGpuReg(REG_OFFSET_BG2VOFS, 0);
+    SetGpuReg(REG_OFFSET_BG3CNT, 0);
+    SetGpuReg(REG_OFFSET_BG3HOFS, 0);
+    SetGpuReg(REG_OFFSET_BG3VOFS, 0);
+    SetGpuReg(REG_OFFSET_WIN0H, 0);
+    SetGpuReg(REG_OFFSET_WIN0V, 0);
+    SetGpuReg(REG_OFFSET_WININ, 0);
+    SetGpuReg(REG_OFFSET_WINOUT, 0);
+    SetGpuReg(REG_OFFSET_BLDCNT, 0);
+    SetGpuReg(REG_OFFSET_BLDALPHA, 0);
+    SetGpuReg(REG_OFFSET_BLDY, 0);
+}
+
+void sub_81472FC(void)
+{
+    ScanlineEffect_Stop();
+    ResetTasks();
+    ResetSpriteData();
+    dp13_810BB8C();
+    ResetPaletteFade();
+    FreeAllSpritePalettes();
+}
+
+void sub_814731C(void)
+{
+    SetGpuReg(REG_OFFSET_DISPCNT, DISPCNT_MODE_0 | DISPCNT_OBJ_1D_MAP | DISPCNT_BG0_ON | DISPCNT_BG3_ON | DISPCNT_OBJ_ON);
+}
+
+void sub_814732C(void)
+{
+    ChangeBgX(0, 0, 0);
+    ChangeBgY(0, 0, 0);
+    ChangeBgX(1, 0, 0);
+    ChangeBgY(1, 0, 0);
+    ChangeBgX(2, 0, 0);
+    ChangeBgY(2, 0, 0);
+    ChangeBgX(3, 0, 0);
+    ChangeBgY(3, 0, 0);
+}
+
+void sub_8147384(void)
+{
+    LoadSpriteSheets(gUnknown_846AF78);
+    LoadSpritePalettes(gUnknown_846AF90);
+}
+
+void sub_81473A0(void)
+{
+    FreeSpriteTilesByTag(3000);
+    FreeSpriteTilesByTag(4000);
+    FreeSpritePaletteByTag(3000);
+}
+
+void sub_81473C4(void)
+{
+    u8 spriteId = CreateSprite(&gUnknown_846AF60, 0, 92, 0);
+    gSprites[spriteId].data[0] = 48;
+    if (sub_81474CC() == TRUE)
+    {
+        StartSpriteAnim(&gSprites[spriteId], 1);
+    }
+    else
+    {
+        gSprites[spriteId].pos1.x = 240;
+        gSprites[spriteId].data[0] *= -1;
+    }
+}
+
+void sub_8147418(struct Sprite * sprite)
+{
+    sprite->data[1] += sprite->data[0];
+    sprite->pos2.x = sprite->data[1] >> 4;
+    if (sprite->data[2] % 5 == 0)
+    {
+        sub_814746C(sprite->pos1.x + sprite->pos2.x);
+    }
+    sprite->data[2]++;
+    if ((u16)(300 + sprite->pos2.x) > 600)
+    {
+        DestroySprite(sprite);
+    }
+}
+
+void sub_814746C(s16 x)
+{
+    u8 spriteId = CreateSprite(&gUnknown_846AFD0, x, 92, 8);
+    if (spriteId != MAX_SPRITES)
+    {
+        if (sub_81474CC() == TRUE)
+        {
+            StartSpriteAnim(&gSprites[spriteId], 1);
+        }
+    }
+}
+
+void sub_81474B0(struct Sprite * sprite)
+{
+    if (sprite->animEnded)
+    {
+        DestroySprite(sprite);
+    }
+}
+
+bool8 sub_81474CC(void)
+{
+    if (gSpecialVar_0x8004 >= NELEMS(gUnknown_846AF28))
+    {
+        return TRUE;
+    }
+    return (gUnknown_846AF28[gSpecialVar_0x8004] >> gSpecialVar_0x8006) & 1;
+}