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-rw-r--r--src/unk_transition.c633
1 files changed, 633 insertions, 0 deletions
diff --git a/src/unk_transition.c b/src/unk_transition.c
new file mode 100644
index 000000000..feaddc8ce
--- /dev/null
+++ b/src/unk_transition.c
@@ -0,0 +1,633 @@
+#include "global.h"
+#include "sprite.h"
+#include "decompress.h"
+#include "unk_transition.h"
+#include "battle_transition.h"
+#include "task.h"
+#include "palette.h"
+#include "trig.h"
+#include "bg.h"
+#include "gpu_regs.h"
+
+typedef bool8 (*TransitionStateFunc)(struct Task *task);
+
+// this file's functions
+static void sub_81DA848(struct Sprite *sprite);
+static void sub_81DA9BC(struct Sprite *sprite);
+static bool8 sub_81DAACC(struct Task *task);
+static bool8 sub_81DAC14(struct Task *task);
+static bool8 sub_81DABBC(struct Task *task);
+static bool8 sub_81DAB4C(struct Task *task);
+static bool8 sub_81DAC80(struct Task *task);
+static bool8 sub_81DACEC(struct Task *task);
+static bool8 sub_81DAD58(struct Task *task);
+static bool8 sub_81DADC4(struct Task *task);
+static bool8 sub_81DAE44(struct Task *task);
+static bool8 sub_81DAEB0(struct Task *task);
+static bool8 sub_81DAF34(struct Task *task);
+static bool8 sub_81DAFA0(struct Task *task);
+static bool8 sub_81DB02C(struct Task *task);
+static bool8 sub_81DB098(struct Task *task);
+static bool8 sub_81DB124(struct Task *task);
+static bool8 sub_81DB190(struct Task *task);
+static bool8 sub_81DB224(struct Task *task);
+static bool8 sub_81DB290(struct Task *task);
+static bool8 sub_81DB328(struct Task *task);
+
+// const rom data
+// TODO: move those from .s file to .c
+extern const u8 gUnknown_0862AD54[];
+extern const u8 gUnknown_0862AF30[];
+extern const u8 gUnknown_0862B0DC[];
+extern const u16 gUnknown_0862B53C[];
+
+static const struct OamData sOamData_862B71C =
+{
+ .y = 0,
+ .affineMode = 0,
+ .objMode = 0,
+ .mosaic = 0,
+ .bpp = 0,
+ .shape = 0,
+ .x = 0,
+ .matrixNum = 0,
+ .size = 3,
+ .tileNum = 0,
+ .priority = 1,
+ .paletteNum = 0,
+ .affineParam = 0
+};
+
+static const struct CompressedSpriteSheet sUnknown_0862B724 =
+{
+ gUnknown_0862B0DC, 0x1800, 11920
+};
+
+static const struct SpritePalette sUnknown_0862B72C =
+{
+ gUnknown_0862B53C, 11920
+};
+
+static const union AnimCmd sSpriteAnim_862B734[] =
+{
+ ANIMCMD_FRAME(0, 1),
+ ANIMCMD_END
+};
+
+static const union AnimCmd sSpriteAnim_862B73C[] =
+{
+ ANIMCMD_FRAME(64, 1),
+ ANIMCMD_END
+};
+
+static const union AnimCmd sSpriteAnim_862B744[] =
+{
+ ANIMCMD_FRAME(128, 1),
+ ANIMCMD_END
+};
+
+static const union AnimCmd *const sSpriteAnimTable_862B74C[] =
+{
+ sSpriteAnim_862B734,
+ sSpriteAnim_862B73C,
+ sSpriteAnim_862B744
+};
+
+static const struct SpriteTemplate sUnknown_0862B758 =
+{
+ .tileTag = 11920,
+ .paletteTag = 11920,
+ .oam = &sOamData_862B71C,
+ .anims = sSpriteAnimTable_862B74C,
+ .images = NULL,
+ .affineAnims = gDummySpriteAffineAnimTable,
+ .callback = SpriteCallbackDummy,
+};
+
+static const TransitionStateFunc sPhase2_34_Funcs[] =
+{
+ sub_81DAACC,
+ sub_81DAC14,
+ sub_81DABBC,
+ sub_81DAB4C,
+ sub_81DAC80
+};
+
+static const TransitionStateFunc sPhase2_35_Funcs[] =
+{
+ sub_81DAACC,
+ sub_81DACEC,
+ sub_81DABBC,
+ sub_81DAB4C,
+ sub_81DAD58
+};
+
+static const TransitionStateFunc sPhase2_36_Funcs[] =
+{
+ sub_81DAACC,
+ sub_81DADC4,
+ sub_81DABBC,
+ sub_81DAB4C,
+ sub_81DAE44
+};
+
+static const TransitionStateFunc sPhase2_37_Funcs[] =
+{
+ sub_81DAACC,
+ sub_81DAEB0,
+ sub_81DABBC,
+ sub_81DAB4C,
+ sub_81DAF34
+};
+
+static const TransitionStateFunc sPhase2_38_Funcs[] =
+{
+ sub_81DAACC,
+ sub_81DAFA0,
+ sub_81DABBC,
+ sub_81DAB4C,
+ sub_81DB02C
+};
+
+static const TransitionStateFunc sPhase2_39_Funcs[] =
+{
+ sub_81DAACC,
+ sub_81DB098,
+ sub_81DABBC,
+ sub_81DAB4C,
+ sub_81DB124
+};
+
+static const TransitionStateFunc sPhase2_40_Funcs[] =
+{
+ sub_81DAACC,
+ sub_81DB190,
+ sub_81DABBC,
+ sub_81DAB4C,
+ sub_81DB224
+};
+
+static const TransitionStateFunc sPhase2_41_Funcs[] =
+{
+ sub_81DAACC,
+ sub_81DB290,
+ sub_81DABBC,
+ sub_81DAB4C,
+ sub_81DB328
+};
+
+// code
+static void sub_81DA700(void)
+{
+ u16 *dst1, *dst2;
+
+ sub_8149F58(&dst1, &dst2);
+ LZ77UnCompVram(gUnknown_0862AD54, dst2);
+ LZ77UnCompVram(gUnknown_0862AF30, dst1);
+ LoadPalette(gUnknown_0862B53C, 0xF0, 0x20);
+ LoadCompressedObjectPic(&sUnknown_0862B724);
+ LoadSpritePalette(&sUnknown_0862B72C);
+}
+
+static u8 sub_81DA74C(s16 x, s16 y, u8 arg2, u8 arg3, s8 arg4, s8 arg5, u8 spriteAnimNum)
+{
+ u8 spriteId = CreateSprite(&sUnknown_0862B758, x, y, 0);
+
+ switch (spriteAnimNum)
+ {
+ case 0:
+ gSprites[spriteId].data[0] = 120;
+ gSprites[spriteId].data[1] = 45;
+ break;
+ case 1:
+ gSprites[spriteId].data[0] = 89;
+ gSprites[spriteId].data[1] = 97;
+ break;
+ case 2:
+ gSprites[spriteId].data[0] = 151;
+ gSprites[spriteId].data[1] = 97;
+ break;
+ }
+
+ gSprites[spriteId].data[2] = arg4;
+ gSprites[spriteId].data[3] = arg5;
+ gSprites[spriteId].data[6] = arg2;
+ gSprites[spriteId].data[7] = arg3;
+ gSprites[spriteId].data[4] = 0;
+ gSprites[spriteId].data[5] = 0;
+
+ StartSpriteAnim(&gSprites[spriteId], spriteAnimNum);
+ gSprites[spriteId].callback = sub_81DA848;
+
+ return spriteId;
+}
+
+static void sub_81DA848(struct Sprite *sprite)
+{
+ s16 *data = sprite->data;
+
+ if (sprite->pos1.x == data[0] && sprite->pos1.y == data[1])
+ {
+ sprite->callback = SpriteCallbackDummy;
+ }
+ else
+ {
+ if (data[4] == data[6])
+ {
+ sprite->pos1.x += data[2];
+ data[4] = 0;
+ }
+ else
+ {
+ data[4]++;
+ }
+
+ if (data[5] == data[7])
+ {
+ sprite->pos1.y += data[3];
+ data[5] = 0;
+ }
+ else
+ {
+ data[5]++;
+ }
+ }
+}
+
+static u8 sub_81DA8BC(s16 x, s16 y, s16 arg2, s16 arg3, s16 arg4, s16 arg5, s16 arg6, u8 spriteAnimNum)
+{
+ u8 spriteId = CreateSprite(&sUnknown_0862B758, x, y, 0);
+
+ switch (spriteAnimNum)
+ {
+ case 0:
+ gSprites[spriteId].data[0] = 120;
+ gSprites[spriteId].data[1] = 45;
+ break;
+ case 1:
+ gSprites[spriteId].data[0] = 89;
+ gSprites[spriteId].data[1] = 97;
+ break;
+ case 2:
+ gSprites[spriteId].data[0] = 151;
+ gSprites[spriteId].data[1] = 97;
+ break;
+ }
+
+ gSprites[spriteId].data[2] = arg2;
+ gSprites[spriteId].data[3] = arg3;
+ gSprites[spriteId].data[4] = arg4;
+ gSprites[spriteId].data[5] = arg5;
+ gSprites[spriteId].data[6] = arg6;
+
+ StartSpriteAnim(&gSprites[spriteId], spriteAnimNum);
+ gSprites[spriteId].callback = sub_81DA9BC;
+
+ return spriteId;
+}
+
+static void sub_81DA9BC(struct Sprite *sprite)
+{
+ sprite->pos2.x = (Sin2(sprite->data[2]) * sprite->data[4]) >> 12; // div by 4096
+ sprite->pos2.y = (Cos2(sprite->data[2]) * sprite->data[4]) >> 12; // div by 4096
+
+ sprite->data[2] = (sprite->data[2] + sprite->data[3]) % 360;
+
+ if (sprite->data[4] != sprite->data[5])
+ sprite->data[4] += sprite->data[6];
+ else
+ sprite->callback = SpriteCallbackDummy;
+}
+
+#define tState data[0]
+
+static void sub_81DAA20(struct Task *task)
+{
+ FreeSpriteTilesByTag(11920);
+ FreeSpritePaletteByTag(11920);
+
+ DestroySprite(&gSprites[task->data[4]]);
+ DestroySprite(&gSprites[task->data[5]]);
+ DestroySprite(&gSprites[task->data[6]]);
+}
+
+static bool8 sub_81DAA74(struct Task *task)
+{
+ if (gSprites[task->data[4]].callback == SpriteCallbackDummy
+ && gSprites[task->data[5]].callback == SpriteCallbackDummy
+ && gSprites[task->data[6]].callback == SpriteCallbackDummy)
+ return TRUE;
+ else
+ return FALSE;
+}
+
+static bool8 sub_81DAACC(struct Task *task)
+{
+ if (task->data[1] == 0)
+ {
+ ClearGpuRegBits(REG_OFFSET_DISPCNT, DISPCNT_WIN0_ON);
+ ClearGpuRegBits(REG_OFFSET_DISPCNT, DISPCNT_WIN1_ON);
+ ClearGpuRegBits(REG_OFFSET_DISPCNT, DISPCNT_BG0_ON);
+
+ task->data[1]++;
+ return FALSE;
+ }
+ else
+ {
+ sub_81DA700();
+ SetGpuReg(REG_OFFSET_BLDCNT, 0x3F41);
+ SetGpuReg(REG_OFFSET_BLDALPHA, 0x1000);
+ ChangeBgX(0, 0, 0);
+ ChangeBgY(0, 0, 0);
+ ChangeBgY(0, 0x500, 2);
+
+ task->data[1] = 0;
+ task->tState++;
+ return TRUE;
+ }
+}
+
+static bool8 sub_81DAB4C(struct Task *task)
+{
+ if (task->data[2] == 0)
+ SetGpuRegBits(REG_OFFSET_DISPCNT, DISPCNT_BG0_ON);
+
+ if (task->data[2] == 16)
+ {
+ if (task->data[3] == 31)
+ {
+ BeginNormalPaletteFade(-1, -1, 0, 0x10, 0);
+ task->tState++;
+ }
+ else
+ {
+ task->data[3]++;
+ }
+ }
+ else
+ {
+ u16 var;
+
+ task->data[2]++;
+ var = task->data[2];
+ SetGpuReg(REG_OFFSET_BLDALPHA, (var) | ((16 - var) << 8));
+ }
+
+ return FALSE;
+}
+
+static bool8 sub_81DABBC(struct Task *task)
+{
+ if (sub_81DAA74(task) == TRUE)
+ task->tState++;
+
+ return FALSE;
+}
+
+void Phase2Task_34(u8 taskId)
+{
+ while (sPhase2_34_Funcs[gTasks[taskId].tState](&gTasks[taskId]));
+}
+
+static bool8 sub_81DAC14(struct Task *task)
+{
+ task->data[4] = sub_81DA74C(120, -51, 0, 0, 0, 2, 0);
+ task->data[5] = sub_81DA74C(-7, 193, 0, 0, 2, -2, 1);
+ task->data[6] = sub_81DA74C(247, 193, 0, 0, -2, -2, 2);
+
+ task->tState++;
+ return FALSE;
+}
+
+static bool8 sub_81DAC80(struct Task *task)
+{
+ if (!gPaletteFade.active)
+ {
+ sub_81DAA20(task);
+ DestroyTask(FindTaskIdByFunc(Phase2Task_34));
+ }
+
+ return FALSE;
+}
+
+void Phase2Task_35(u8 taskId)
+{
+ while (sPhase2_35_Funcs[gTasks[taskId].tState](&gTasks[taskId]));
+}
+
+static bool8 sub_81DACEC(struct Task *task)
+{
+ task->data[4] = sub_81DA74C(120, 197, 0, 0, 0, -4, 0);
+ task->data[5] = sub_81DA74C(241, 59, 0, 1, -4, 2, 1);
+ task->data[6] = sub_81DA74C(-1, 59, 0, 1, 4, 2, 2);
+
+ task->tState++;
+ return FALSE;
+}
+
+static bool8 sub_81DAD58(struct Task *task)
+{
+ if (!gPaletteFade.active)
+ {
+ sub_81DAA20(task);
+ DestroyTask(FindTaskIdByFunc(Phase2Task_35));
+ }
+
+ return FALSE;
+}
+
+void Phase2Task_36(u8 taskId)
+{
+ while (sPhase2_36_Funcs[gTasks[taskId].tState](&gTasks[taskId]));
+}
+
+static bool8 sub_81DADC4(struct Task *task)
+{
+ task->data[4] = sub_81DA8BC(120, 45, 12, 4, 128, 0, -4, 0);
+ task->data[5] = sub_81DA8BC(89, 97, 252, 4, 128, 0, -4, 1);
+ task->data[6] = sub_81DA8BC(151, 97, 132, 4, 128, 0, -4, 2);
+
+ task->tState++;
+ return FALSE;
+}
+
+static bool8 sub_81DAE44(struct Task *task)
+{
+ if (!gPaletteFade.active)
+ {
+ sub_81DAA20(task);
+ DestroyTask(FindTaskIdByFunc(Phase2Task_36));
+ }
+
+ return FALSE;
+}
+
+void Phase2Task_37(u8 taskId)
+{
+ while (sPhase2_37_Funcs[gTasks[taskId].tState](&gTasks[taskId]));
+}
+
+static bool8 sub_81DAEB0(struct Task *task)
+{
+ task->data[4] = sub_81DA8BC(120, 80, 284, 8, 131, 35, -3, 0);
+ task->data[5] = sub_81DA8BC(120, 80, 44, 8, 131, 35, -3, 1);
+ task->data[6] = sub_81DA8BC(121, 80, 164, 8, 131, 35, -3, 2);
+
+ task->tState++;
+ return FALSE;
+}
+
+static bool8 sub_81DAF34(struct Task *task)
+{
+ if (!gPaletteFade.active)
+ {
+ sub_81DAA20(task);
+ DestroyTask(FindTaskIdByFunc(Phase2Task_37));
+ }
+
+ return FALSE;
+}
+
+void Phase2Task_38(u8 taskId)
+{
+ while (sPhase2_38_Funcs[gTasks[taskId].tState](&gTasks[taskId]));
+}
+
+static bool8 sub_81DAFA0(struct Task *task)
+{
+ if (task->data[1] == 0)
+ {
+ task->data[4] = sub_81DA74C(120, -51, 0, 0, 0, 4, 0);
+ }
+ else if (task->data[1] == 16)
+ {
+ task->data[5] = sub_81DA74C(-7, 193, 0, 0, 4, -4, 1);
+ }
+ else if (task->data[1] == 32)
+ {
+ task->data[6] = sub_81DA74C(247, 193, 0, 0, -4, -4, 2);
+ task->tState++;
+ }
+
+ task->data[1]++;
+ return FALSE;
+}
+
+static bool8 sub_81DB02C(struct Task *task)
+{
+ if (!gPaletteFade.active)
+ {
+ sub_81DAA20(task);
+ DestroyTask(FindTaskIdByFunc(Phase2Task_38));
+ }
+
+ return FALSE;
+}
+
+void Phase2Task_39(u8 taskId)
+{
+ while (sPhase2_39_Funcs[gTasks[taskId].tState](&gTasks[taskId]));
+}
+
+static bool8 sub_81DB098(struct Task *task)
+{
+ if (task->data[1] == 0)
+ {
+ task->data[4] = sub_81DA74C(120, 197, 0, 0, 0, -8, 0);
+ }
+ else if (task->data[1] == 16)
+ {
+ task->data[5] = sub_81DA74C(241, 78, 0, 0, -8, 1, 1);
+ }
+ else if (task->data[1] == 32)
+ {
+ task->data[6] = sub_81DA74C(-1, 78, 0, 0, 8, 1, 2);
+ task->tState++;
+ }
+
+ task->data[1]++;
+ return FALSE;
+}
+
+static bool8 sub_81DB124(struct Task *task)
+{
+ if (!gPaletteFade.active)
+ {
+ sub_81DAA20(task);
+ DestroyTask(FindTaskIdByFunc(Phase2Task_39));
+ }
+
+ return FALSE;
+}
+
+void Phase2Task_40(u8 taskId)
+{
+ while (sPhase2_40_Funcs[gTasks[taskId].tState](&gTasks[taskId]));
+}
+
+static bool8 sub_81DB190(struct Task *task)
+{
+ if (task->data[1] == 0)
+ {
+ task->data[4] = sub_81DA8BC(120, 45, 12, 4, 128, 0, -4, 0);
+ }
+ else if (task->data[1] == 16)
+ {
+ task->data[5] = sub_81DA8BC(89, 97, 252, 4, 128, 0, -4, 1);
+ }
+ else if (task->data[1] == 32)
+ {
+ task->data[6] = sub_81DA8BC(151, 97, 132, 4, 128, 0, -4, 2);
+ task->tState++;
+ }
+
+ task->data[1]++;
+ return FALSE;
+}
+
+static bool8 sub_81DB224(struct Task *task)
+{
+ if (!gPaletteFade.active)
+ {
+ sub_81DAA20(task);
+ DestroyTask(FindTaskIdByFunc(Phase2Task_40));
+ }
+
+ return FALSE;
+}
+
+void Phase2Task_41(u8 taskId)
+{
+ while (sPhase2_41_Funcs[gTasks[taskId].tState](&gTasks[taskId]));
+}
+
+static bool8 sub_81DB290(struct Task *task)
+{
+ if (task->data[1] == 0)
+ {
+ task->data[4] = sub_81DA8BC(120, 80, 284, 8, 131, 35, -3, 0);
+ }
+ else if (task->data[1] == 16)
+ {
+ task->data[5] = sub_81DA8BC(120, 80, 44, 8, 131, 35, -3, 1);
+ }
+ else if (task->data[1] == 32)
+ {
+ task->data[6] = sub_81DA8BC(121, 80, 164, 8, 131, 35, -3, 2);
+ task->tState++;
+ }
+
+ task->data[1]++;
+ return FALSE;
+}
+
+static bool8 sub_81DB328(struct Task *task)
+{
+ if (!gPaletteFade.active)
+ {
+ sub_81DAA20(task);
+ DestroyTask(FindTaskIdByFunc(Phase2Task_41));
+ }
+
+ return FALSE;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2025-05-06 07:08:44 +0000