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-rw-r--r--src/field_tasks.c776
1 files changed, 776 insertions, 0 deletions
diff --git a/src/field_tasks.c b/src/field_tasks.c
new file mode 100644
index 000000000..d9c3078da
--- /dev/null
+++ b/src/field_tasks.c
@@ -0,0 +1,776 @@
+#include "global.h"
+#include "task.h"
+#include "main.h"
+#include "constants/vars.h"
+#include "bike.h"
+#include "item.h"
+#include "constants/items.h"
+#include "event_data.h"
+#include "overworld.h"
+#include "clock.h"
+#include "script.h"
+#include "field_special_scene.h"
+#include "field_effect_helpers.h"
+#include "secret_base.h"
+#include "metatile_behavior.h"
+#include "fieldmap.h"
+#include "field_player_avatar.h"
+#include "field_camera.h"
+#include "constants/songs.h"
+#include "sound.h"
+#include "field_tasks.h"
+
+struct MetatileOffset
+{
+ s8 x;
+ s8 y;
+ u16 tileId;
+};
+
+// this file's functions
+static void DummyPerStepCallback(u8 taskId);
+static void PerStepCallback_8069F64(u8 taskId);
+static void PerStepCallback_8069AA0(u8 taskId);
+static void PerStepCallback_8069864(u8 taskId);
+static void PerStepCallback_8069DD4(u8 taskId);
+static void PerStepCallback_806A07C(u8 taskId);
+static void Task_MuddySlope(u8 taskId);
+
+// const rom data
+static void (*const gUnknown_08510348[])(u8) =
+{
+ DummyPerStepCallback,
+ PerStepCallback_8069F64,
+ PerStepCallback_8069AA0,
+ PerStepCallback_8069864,
+ PerStepCallback_8069DD4,
+ EndTruckSequence,
+ sub_80EA3E4,
+ PerStepCallback_806A07C
+};
+
+// they are in pairs but declared as 1D array
+static const struct MetatileOffset gUnknown_08510368[] =
+{
+ { 0, 0,0x259}, { 0, 1,0x261},
+ { 0, -1,0x259}, { 0, 0,0x261},
+ { 0, 0,0x252}, { 1, 0,0x253},
+ { -1, 0,0x252}, { 0, 0,0x253}
+};
+
+static const struct MetatileOffset gUnknown_08510388[] =
+{
+ { 0, 0,0x25A}, { 0, 1,0x262},
+ { 0, -1,0x25A}, { 0, 0,0x262},
+ { 0, 0,0x254}, { 1, 0,0x255},
+ { -1, 0,0x254}, { 0, 0,0x255}
+};
+
+static const struct MetatileOffset gUnknown_085103A8[] =
+{
+ { 0, 0,0x258}, { 0, 1,0x260},
+ { 0, -1,0x258}, { 0, 0,0x260},
+ { 0, 0,0x250}, { 1, 0,0x251},
+ { -1, 0,0x250}, { 0, 0,0x251}
+};
+
+static const u16 gUnknown_085103C8[] =
+{
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ VAR_TEMP_1,
+ VAR_TEMP_2,
+ VAR_TEMP_3,
+ VAR_TEMP_4,
+ 0,
+ 0,
+ VAR_TEMP_5,
+ VAR_TEMP_6,
+ VAR_TEMP_7,
+ 0,
+ 0,
+ VAR_TEMP_8,
+ VAR_TEMP_9,
+ VAR_TEMP_A,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0
+};
+
+static const u16 gUnknown_085103FC[] = {0xe8, 0xeb, 0xea, 0xe9};
+
+// code
+static void Task_RunPerStepCallback(u8 taskId)
+{
+ int idx = gTasks[taskId].data[0];
+ gUnknown_08510348[idx](taskId);
+}
+
+#define tState data[0]
+#define tAmbientCryState data[1]
+#define tAmbientCryDelay data[2]
+
+static void RunTimeBasedEvents(s16 *data)
+{
+ switch (tState)
+ {
+ case 0:
+ if (gMain.vblankCounter1 & 0x1000)
+ {
+ DoTimeBasedEvents();
+ tState++;
+ }
+ break;
+ case 1:
+ if (!(gMain.vblankCounter1 & 0x1000))
+ {
+ tState--;
+ }
+ break;
+ }
+}
+
+static void Task_RunTimeBasedEvents(u8 taskId)
+{
+ s16 *data = gTasks[taskId].data;
+
+ if (!ScriptContext2_IsEnabled())
+ {
+ RunTimeBasedEvents(data);
+ UpdateAmbientCry(&tAmbientCryState, &tAmbientCryDelay);
+ }
+}
+
+#undef tState
+#undef tAmbientCryState
+#undef tAmbientCryDelay
+
+void SetUpFieldTasks(void)
+{
+ if (!FuncIsActiveTask(Task_RunPerStepCallback))
+ {
+ u8 taskId = CreateTask(Task_RunPerStepCallback, 0x50);
+ gTasks[taskId].data[0] = 0;
+ }
+ if (!FuncIsActiveTask(Task_MuddySlope))
+ {
+ CreateTask(Task_MuddySlope, 0x50);
+ }
+ if (!FuncIsActiveTask(Task_RunTimeBasedEvents))
+ {
+ CreateTask(Task_RunTimeBasedEvents, 0x50);
+ }
+}
+
+void ActivatePerStepCallback(u8 callbackId)
+{
+ u8 taskId = FindTaskIdByFunc(Task_RunPerStepCallback);
+ if (taskId != 0xff)
+ {
+ s32 i;
+ s16 *data = gTasks[taskId].data;
+
+ for (i = 0; i < 16; i++)
+ data[i] = 0;
+
+ if (callbackId >= ARRAY_COUNT(gUnknown_08510348))
+ {
+ data[0] = 0;
+ }
+ else
+ {
+ data[0] = callbackId;
+ }
+ }
+}
+
+void ResetFieldTasksArgs(void)
+{
+ u8 taskId;
+ s16 *data;
+
+ taskId = FindTaskIdByFunc(Task_RunPerStepCallback);
+ if (taskId != 0xff)
+ {
+ data = gTasks[taskId].data;
+ }
+ taskId = FindTaskIdByFunc(Task_RunTimeBasedEvents);
+ if (taskId != 0xff)
+ {
+ data = gTasks[taskId].data;
+ data[1] = 0;
+ data[2] = 0;
+ }
+}
+
+static void DummyPerStepCallback(u8 taskId)
+{
+
+}
+
+static const struct MetatileOffset *sub_809DA30(const struct MetatileOffset *offsets, u16 metatileBehavior)
+{
+ if (MetatileBehavior_IsPacifilogVerticalLog1(metatileBehavior))
+ return &offsets[0 * 2];
+ else if (MetatileBehavior_IsPacifilogVerticalLog2(metatileBehavior))
+ return &offsets[1 * 2];
+ else if (MetatileBehavior_IsPacifilogHorizontalLog1(metatileBehavior))
+ return &offsets[2 * 2];
+ else if (MetatileBehavior_IsPacifilogHorizontalLog2(metatileBehavior))
+ return &offsets[3 * 2];
+ else
+ return NULL;
+}
+
+static void sub_809DA88(const struct MetatileOffset *offsets, s16 x, s16 y, bool32 flag)
+{
+ offsets = sub_809DA30(offsets, MapGridGetMetatileBehaviorAt(x, y));
+
+ if (offsets != NULL)
+ {
+ MapGridSetMetatileIdAt(x + offsets[0].x, y + offsets[0].y, offsets[0].tileId);
+ if (flag)
+ CurrentMapDrawMetatileAt(x + offsets[0].x, y + offsets[0].y);
+
+ MapGridSetMetatileIdAt(x + offsets[1].x, y + offsets[1].y, offsets[1].tileId);
+ if (flag)
+ CurrentMapDrawMetatileAt(x + offsets[1].x, y + offsets[1].y);
+ }
+}
+
+static void sub_809DB10(s16 x, s16 y, bool32 flag)
+{
+ sub_809DA88(gUnknown_08510368, x, y, flag);
+}
+
+static void sub_809DB34(s16 x, s16 y, bool32 flag)
+{
+ sub_809DA88(gUnknown_08510388, x, y, flag);
+}
+
+static void sub_809DB58(s16 x, s16 y, bool32 flag)
+{
+ sub_809DA88(gUnknown_085103A8, x, y, flag);
+}
+
+static bool32 sub_809DB7C(s16 x1, s16 y1, s16 x2, s16 y2)
+{
+ u16 metatileBehavior = MapGridGetMetatileBehaviorAt(x2, y2);
+
+ if (MetatileBehavior_IsPacifilogVerticalLog1(metatileBehavior))
+ {
+ if (y1 > y2)
+ return FALSE;
+ }
+ else if (MetatileBehavior_IsPacifilogVerticalLog2(metatileBehavior))
+ {
+ if (y1 < y2)
+ return FALSE;
+ }
+ else if (MetatileBehavior_IsPacifilogHorizontalLog1(metatileBehavior))
+ {
+ if (x1 > x2)
+ return FALSE;
+ }
+ else if (MetatileBehavior_IsPacifilogHorizontalLog2(metatileBehavior))
+ {
+ if (x1 < x2)
+ return FALSE;
+ }
+ return TRUE;
+}
+
+static bool32 sub_809DC18(s16 x1, s16 y1, s16 x2, s16 y2)
+{
+ u16 metatileBehavior = MapGridGetMetatileBehaviorAt(x1, y1);
+
+ if (MetatileBehavior_IsPacifilogVerticalLog1(metatileBehavior))
+ {
+ if (y1 < y2)
+ return FALSE;
+ }
+ else if (MetatileBehavior_IsPacifilogVerticalLog2(metatileBehavior))
+ {
+ if (y1 > y2)
+ return FALSE;
+ }
+ else if (MetatileBehavior_IsPacifilogHorizontalLog1(metatileBehavior))
+ {
+ if (x1 < x2)
+ return FALSE;
+ }
+ else if (MetatileBehavior_IsPacifilogHorizontalLog2(metatileBehavior))
+ {
+ if (x1 > x2)
+ return FALSE;
+ }
+ return TRUE;
+}
+
+static void PerStepCallback_8069864(u8 taskId)
+{
+ s16 *data;
+ s16 x, y;
+ data = gTasks[taskId].data;
+ PlayerGetDestCoords(&x, &y);
+ switch (data[1])
+ {
+ case 0:
+ data[2] = x;
+ data[3] = y;
+ sub_809DB34(x, y, TRUE);
+ data[1] = 1;
+ break;
+ case 1:
+ if (x != data[2] || y != data[3])
+ {
+ if (sub_809DB7C(x, y, data[2], data[3]))
+ {
+ sub_809DB10(data[2], data[3], TRUE);
+ sub_809DB58(data[2], data[3], FALSE);
+ data[4] = data[2];
+ data[5] = data[3];
+ data[1] = 2;
+ data[6] = 8;
+ }
+ else
+ {
+ data[4] = -1;
+ data[5] = -1;
+ }
+ if (sub_809DC18(x, y, data[2], data[3]))
+ {
+ sub_809DB10(x, y, TRUE);
+ data[1] = 2;
+ data[6] = 8;
+ }
+ data[2] = x;
+ data[3] = y;
+ if (MetatileBehavior_IsPacifidlogLog(MapGridGetMetatileBehaviorAt(x, y)))
+ {
+ PlaySE(SE_MIZU);
+ }
+ }
+ break;
+ case 2:
+ if ((--data[6]) == 0)
+ {
+ sub_809DB34(x, y, TRUE);
+ if (data[4] != -1 && data[5] != -1)
+ {
+ sub_809DB58(data[4], data[5], TRUE);
+ }
+ data[1] = 1;
+ }
+ break;
+ }
+}
+
+static void sub_809DE28(s16 x, s16 y)
+{
+ u8 z = PlayerGetZCoord();
+ if (!(z & 0x01))
+ {
+ switch (MapGridGetMetatileIdAt(x, y))
+ {
+ case 0x24e:
+ MapGridSetMetatileIdAt(x, y, 0x24f);
+ break;
+ case 0x256:
+ MapGridSetMetatileIdAt(x, y, 0x257);
+ break;
+ }
+ }
+}
+
+static void sub_809DE8C(s16 x, s16 y)
+{
+ u8 z = PlayerGetZCoord();
+ if (!(z & 0x01))
+ {
+ switch (MapGridGetMetatileIdAt(x, y))
+ {
+ case 0x24f:
+ MapGridSetMetatileIdAt(x, y, 0x24e);
+ break;
+ case 0x257:
+ MapGridSetMetatileIdAt(x, y, 0x256);
+ break;
+ }
+ }
+}
+
+static void PerStepCallback_8069AA0(u8 taskId)
+{
+ bool8 isFortreeBridgeCur;
+ bool8 isFortreeBridgePrev;
+ u8 z, flag;
+ s16 x, y, x2, y2;
+ s16 *data = gTasks[taskId].data;
+ PlayerGetDestCoords(&x, &y);
+ switch (data[1])
+ {
+ default:
+ break;
+ case 0:
+ data[2] = x;
+ data[3] = y;
+ if (MetatileBehavior_IsFortreeBridge(MapGridGetMetatileBehaviorAt(x, y)))
+ {
+ sub_809DE28(x, y);
+ CurrentMapDrawMetatileAt(x, y);
+ }
+ data[1] = 1;
+ break;
+ case 1:
+ x2 = data[2];
+ y2 = data[3];
+ if (x == x2 && y == y2)
+ {
+ break;
+ }
+ isFortreeBridgeCur = MetatileBehavior_IsFortreeBridge(MapGridGetMetatileBehaviorAt(x, y));
+ isFortreeBridgePrev = MetatileBehavior_IsFortreeBridge(MapGridGetMetatileBehaviorAt(x2, y2));
+ z = PlayerGetZCoord();
+ flag = 0;
+ if ((u8)(z & 1) == 0)
+ {
+ flag = 1;
+ }
+ if (flag && (isFortreeBridgeCur == 1 || isFortreeBridgePrev == 1))
+ {
+ PlaySE(SE_HASHI);
+ }
+ if (isFortreeBridgePrev)
+ {
+ sub_809DE8C(x2, y2);
+ CurrentMapDrawMetatileAt(x2, y2);
+ sub_809DE28(x, y);
+ CurrentMapDrawMetatileAt(x, y);
+ }
+ data[4] = x2;
+ data[5] = y2;
+ data[2] = x;
+ data[3] = y;
+ if (!isFortreeBridgePrev)
+ {
+ break;
+ }
+ data[6] = 16;
+ data[1] = 2;
+ // fallthrough
+ case 2:
+ data[6]--;
+ x2 = data[4];
+ y2 = data[5];
+ switch (data[6] % 7)
+ {
+ case 0:
+ CurrentMapDrawMetatileAt(x2, y2);
+ case 1:
+ case 2:
+ case 3:
+ break;
+ case 4:
+ sub_809DE28(x2, y2);
+ CurrentMapDrawMetatileAt(x2, y2);
+ sub_809DE8C(x2, y2);
+ case 5:
+ case 6:
+ case 7:
+ break;
+ }
+ if (data[6] == 0)
+ {
+ data[1] = 1;
+ }
+ break;
+ }
+}
+
+static bool32 sub_809E108(s16 x, s16 y)
+{
+ if ((u16)(x - 3) < 11 && (u16)(y - 6) < 14 && gUnknown_085103C8[y])
+ return TRUE;
+ else
+ return FALSE;
+}
+
+static void sub_809E14C(s16 x, s16 y)
+{
+ if (sub_809E108(x, y))
+ *GetVarPointer(gUnknown_085103C8[y]) |= (1 << (x - 3));
+}
+
+static bool32 sub_809E184(s16 x, s16 y)
+{
+ u32 var;
+ if (!sub_809E108(x, y))
+ return FALSE;
+
+ var = VarGet(gUnknown_085103C8[y]) << 16;
+ if (((1 << 16) << (x - 3)) & var) // TODO: fix that if
+ return TRUE;
+ else
+ return FALSE;
+}
+
+void SetSootopolisGymCrackedIceMetatiles(void)
+{
+ s32 x, y;
+ s32 width = gMapHeader.mapData->width;
+ s32 height = gMapHeader.mapData->height;
+ for (x = 0; x < width; x++)
+ {
+ for (y = 0; y < height; y++)
+ {
+ if (sub_809E184(x, y) == TRUE)
+ {
+ MapGridSetMetatileIdAt(x + 7, y + 7, 0x20e);
+ }
+ }
+ }
+}
+
+static void PerStepCallback_8069DD4(u8 taskId)
+{
+ s16 x, y;
+ u16 tileBehavior;
+ u16 *var;
+ s16 *data = gTasks[taskId].data;
+ switch (data[1])
+ {
+ case 0:
+ PlayerGetDestCoords(&x, &y);
+ data[2] = x;
+ data[3] = y;
+ data[1] = 1;
+ break;
+ case 1:
+ PlayerGetDestCoords(&x, &y);
+ if (x != data[2] || y != data[3])
+ {
+ data[2] = x;
+ data[3] = y;
+ tileBehavior = MapGridGetMetatileBehaviorAt(x, y);
+ var = GetVarPointer(VAR_ICE_STEP_COUNT);
+ if (MetatileBehavior_IsThinIce(tileBehavior) == TRUE)
+ {
+ (*var)++;
+ data[6] = 4;
+ data[1] = 2;
+ data[4] = x;
+ data[5] = y;
+ }
+ else if (MetatileBehavior_IsCrackedIce(tileBehavior) == TRUE)
+ {
+ *var = 0;
+ data[6] = 4;
+ data[1] = 3;
+ data[4] = x;
+ data[5] = y;
+ }
+ }
+ break;
+ case 2:
+ if (data[6] != 0)
+ {
+ data[6]--;
+ }
+ else
+ {
+ x = data[4];
+ y = data[5];
+ PlaySE(SE_RU_BARI);
+ MapGridSetMetatileIdAt(x, y, 0x20e);
+ CurrentMapDrawMetatileAt(x, y);
+ sub_809E14C(x - 7, y - 7);
+ data[1] = 1;
+ }
+ break;
+ case 3:
+ if (data[6] != 0)
+ {
+ data[6]--;
+ }
+ else
+ {
+ x = data[4];
+ y = data[5];
+ PlaySE(SE_RU_GASYAN);
+ MapGridSetMetatileIdAt(x, y, 0x206);
+ CurrentMapDrawMetatileAt(x, y);
+ data[1] = 1;
+ }
+ break;
+ }
+}
+
+static void PerStepCallback_8069F64(u8 taskId)
+{
+ s16 x, y;
+ u16 *var;
+ s16 *data = gTasks[taskId].data;
+ PlayerGetDestCoords(&x, &y);
+ if (x != data[1] || y != data[2])
+ {
+ data[1] = x;
+ data[2] = y;
+ if (MetatileBehavior_IsAsh(MapGridGetMetatileBehaviorAt(x, y)))
+ {
+ if (MapGridGetMetatileIdAt(x, y) == 0x20a)
+ {
+ ash(x, y, 0x212, 4);
+ }
+ else
+ {
+ ash(x, y, 0x206, 4);
+ }
+ if (CheckBagHasItem(ITEM_SOOT_SACK, 1))
+ {
+ var = GetVarPointer(VAR_ASH_GATHER_COUNT);
+ if (*var < 9999)
+ {
+ (*var)++;
+ }
+ }
+ }
+ }
+}
+
+static void sub_809E490(s16 x, s16 y)
+{
+ MapGridSetMetatileIdAt(x, y, MapGridGetMetatileIdAt(x, y) == 0x22f ? 0x206 : 0x237);
+ CurrentMapDrawMetatileAt(x, y);
+}
+
+static void PerStepCallback_806A07C(u8 taskId)
+{
+ s16 x, y;
+ u16 behavior;
+ s16 *data = gTasks[taskId].data;
+ PlayerGetDestCoords(&x, &y);
+ behavior = MapGridGetMetatileBehaviorAt(x, y);
+ if (data[4] != 0 && (--data[4]) == 0)
+ {
+ sub_809E490(data[5], data[6]);
+ }
+ if (data[7] != 0 && (--data[7]) == 0)
+ {
+ sub_809E490(data[8], data[9]);
+ }
+ if (MetatileBehavior_IsCrackedFloorHole(behavior))
+ {
+ VarSet(VAR_ICE_STEP_COUNT, 0); // this var does double duty
+ }
+ if ((x != data[2] || y != data[3]))
+ {
+ data[2] = x;
+ data[3] = y;
+ if (MetatileBehavior_IsCrackedFloor(behavior))
+ {
+ if (GetPlayerSpeed() != 4)
+ {
+ VarSet(VAR_ICE_STEP_COUNT, 0); // this var does double duty
+ }
+ if (data[4] == 0)
+ {
+ data[4] = 3;
+ data[5] = x;
+ data[6] = y;
+ }
+ else if (data[7] == 0)
+ {
+ data[7] = 3;
+ data[8] = x;
+ data[9] = y;
+ }
+ }
+ }
+}
+
+static void sub_809E5DC(s16 *data, s16 x, s16 y)
+{
+ u16 tile;
+ if ((--data[0]) == 0)
+ {
+ tile = 0xe8;
+ }
+ else
+ {
+ tile = gUnknown_085103FC[data[0] / 8];
+ }
+ MapGridSetMetatileIdAt(x, y, tile);
+ CurrentMapDrawMetatileAt(x, y);
+ MapGridSetMetatileIdAt(x, y, 0xe8);
+}
+
+static void Task_MuddySlope(u8 taskId)
+{
+ s16 x, y, x2, y2;
+ int i;
+ u16 mapIndices;
+ s16 *data = gTasks[taskId].data;
+ PlayerGetDestCoords(&x, &y);
+ mapIndices = (gSaveBlock1Ptr->location.mapGroup << 8) | gSaveBlock1Ptr->location.mapNum;
+ switch (data[1])
+ {
+ case 0:
+ data[0] = mapIndices;
+ data[2] = x;
+ data[3] = y;
+ data[1] = 1;
+ data[4] = 0;
+ data[7] = 0;
+ data[10] = 0;
+ data[13] = 0;
+ break;
+ case 1:
+ if (data[2] != x || data[3] != y)
+ {
+ data[2] = x;
+ data[3] = y;
+ if (MetatileBehavior_IsMuddySlope(MapGridGetMetatileBehaviorAt(x, y)))
+ {
+ for (i=4; i<14; i+=3)
+ {
+ if (data[i] == 0)
+ {
+ data[i] = 32;
+ data[i + 1] = x;
+ data[i + 2] = y;
+ break;
+ }
+ }
+ }
+ }
+ break;
+ }
+ if (gCamera.active && mapIndices != data[0])
+ {
+ data[0] = mapIndices;
+ x2 = gCamera.x;
+ y2 = gCamera.y;
+ }
+ else
+ {
+ x2 = 0;
+ y2 = 0;
+ }
+ for (i = 4; i < 14; i += 3)
+ {
+ if (data[i])
+ {
+ data[i + 1] -= x2;
+ data[i + 2] -= y2;
+ sub_809E5DC(&data[i], data[i + 1], data[i + 2]);
+ }
+ }
+}
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