Finish Mossdeep Gym doc, beging documenting rotating tile puzzle

1 files changed, 315 insertions, 0 deletions

diff --git a/src/rotating_tile_puzzle.c b/src/rotating_tile_puzzle.c
new file mode 100644
index 000000000..acc1c11cc
--- /dev/null
+++ b/src/rotating_tile_puzzle.c
@@ -0,0 +1,315 @@
+#include "global.h"
+#include "event_object_movement.h"
+#include "fieldmap.h"
+#include "malloc.h"
+#include "rotating_tile_puzzle.h"
+#include "script_movement.h"
+#include "constants/event_object_movement_constants.h"
+#include "constants/event_objects.h"
+#include "constants/metatile_labels.h"
+
+// Movement scripts.
+extern const u8 gUnknown_08612698[];
+extern const u8 gUnknown_0861269C[];
+extern const u8 gUnknown_086126A0[];
+extern const u8 gUnknown_086126A4[];
+extern const u8 MossdeepGym_Movement_FaceRight[];
+extern const u8 MossdeepGym_Movement_FaceDown[];
+extern const u8 MossdeepGym_Movement_FaceLeft[];
+extern const u8 MossdeepGym_Movement_FaceUp[];
+
+struct MossdeepSubStruct
+{
+    u8 unk0;
+    u8 eventTemplateId;
+};
+
+struct RotatingTilePuzzle
+{
+    struct MossdeepSubStruct objects[EVENT_OBJECTS_COUNT];
+    u8 count;
+    bool8 isTrickHouse;
+};
+
+// This file's functions.
+static void AddEventObject(u8 eventTemplateId, u8 arg1);
+static void sub_81A8D94(u8 eventTemplateId, u8 arg1);
+
+// EWRAM vars
+EWRAM_DATA static struct RotatingTilePuzzle *sRotatingTilePuzzle = NULL;
+
+// code
+void InitRotatingTilePuzzle(bool8 isTrickHouse)
+{
+    if (sRotatingTilePuzzle == NULL)
+        sRotatingTilePuzzle = AllocZeroed(sizeof(*sRotatingTilePuzzle));
+
+    sRotatingTilePuzzle->isTrickHouse = isTrickHouse;
+}
+
+void FinishMossdeepGymTiles(void)
+{
+    u8 id;
+
+    if (sRotatingTilePuzzle != NULL)
+        FREE_AND_SET_NULL(sRotatingTilePuzzle);
+
+    id = GetEventObjectIdByLocalIdAndMap(EVENT_OBJ_ID_PLAYER, 0, 0);
+    EventObjectClearHeldMovementIfFinished(&gEventObjects[id]);
+    ScriptMovement_UnfreezeEventObjects();
+}
+
+u16 MossdeepGym_MoveEvents(u8 puzzleNumber)
+{
+    u8 i;
+    struct EventObjectTemplate *eventObjects = gSaveBlock1Ptr->eventObjectTemplates;
+    u16 localId = 0;
+
+    for (i = 0; i < EVENT_OBJECT_TEMPLATES_COUNT; i++)
+    {
+        s32 puzzleTileStart;
+        u8 r5;
+        s16 x = eventObjects[i].x + 7;
+        s16 y = eventObjects[i].y + 7;
+        u16 metatile = MapGridGetMetatileIdAt(x, y);
+
+        if (!sRotatingTilePuzzle->isTrickHouse)
+            puzzleTileStart = METATILE_MossdeepGym_YellowRightArrow;
+        else
+            puzzleTileStart = METATILE_TrickHousePuzzle_Arrow_YellowOnWhite_Right;
+
+        if (metatile < METATILE_MossdeepGym_YellowRightArrow)
+            continue;
+
+        if ((u8)((metatile - puzzleTileStart) / 8) >= 5)
+            continue;
+        if ((u8)((metatile - puzzleTileStart) / 8) != puzzleNumber)
+            continue;
+
+        r5 = (u8)((metatile - puzzleTileStart) % 8);
+        if (r5 < 4)
+        {
+            s8 x = 0;
+            s8 y = 0;
+            const u8 *movementScript;
+
+            switch (r5)
+            {
+            case 0:
+                movementScript = gUnknown_08612698;
+                x = 1;
+                break;
+            case 1:
+                movementScript = gUnknown_0861269C;
+                y = 1;
+                break;
+            case 2:
+                movementScript = gUnknown_086126A0;
+                x = -1;
+                break;
+            case 3:
+                movementScript = gUnknown_086126A4;
+                y = -1;
+                break;
+            default:
+                continue;
+            }
+
+            eventObjects[i].x += x;
+            eventObjects[i].y += y;
+            if (GetEventObjectIdByLocalIdAndMap(eventObjects[i].localId, gSaveBlock1Ptr->location.mapNum, gSaveBlock1Ptr->location.mapGroup) != EVENT_OBJECTS_COUNT)
+            {
+                AddEventObject(i, r5);
+                localId = eventObjects[i].localId;
+                ScriptMovement_StartObjectMovementScript(localId, gSaveBlock1Ptr->location.mapNum, gSaveBlock1Ptr->location.mapGroup, movementScript);
+            }
+            else
+            {
+                sub_81A8D94(i, r5);
+            }
+        }
+    }
+
+    return localId;
+}
+
+void MossdeepGym_TurnEvents(void)
+{
+    u8 i;
+    s32 puzzleTileStart;
+    struct EventObjectTemplate *eventObjects;
+
+    if (sRotatingTilePuzzle == NULL)
+        return;
+
+    if (!sRotatingTilePuzzle->isTrickHouse)
+        puzzleTileStart = METATILE_MossdeepGym_YellowRightArrow;
+    else
+        puzzleTileStart = METATILE_TrickHousePuzzle_Arrow_YellowOnWhite_Right;
+
+    eventObjects = gSaveBlock1Ptr->eventObjectTemplates;
+    for (i = 0; i < sRotatingTilePuzzle->count; i++)
+    {
+        s32 r6;
+        s8 r0;
+        u8 eventObjectId;
+        s16 x = eventObjects[sRotatingTilePuzzle->objects[i].eventTemplateId].x + 7;
+        s16 y = eventObjects[sRotatingTilePuzzle->objects[i].eventTemplateId].y + 7;
+        u16 metatile = MapGridGetMetatileIdAt(x, y);
+
+        r0 = (u8)((metatile - puzzleTileStart) % 8);
+        r0 -= (sRotatingTilePuzzle->objects[i].unk0);
+        if (r0 < 0 || r0 == 3)
+        {
+            if (r0 == -3)
+                r6 = 1;
+            else
+                r6 = 0;
+        }
+        else
+        {
+            if (r0 > 0)
+                r6 = 1;
+            else
+                r6 = 2;
+        }
+
+        eventObjectId = GetEventObjectIdByLocalIdAndMap(eventObjects[sRotatingTilePuzzle->objects[i].eventTemplateId].localId, gSaveBlock1Ptr->location.mapNum, gSaveBlock1Ptr->location.mapGroup);
+        if (eventObjectId != EVENT_OBJECTS_COUNT)
+        {
+            const u8 *movementScript;
+            u8 direction = gEventObjects[eventObjectId].facingDirection;
+            if (r6 == 0)
+            {
+                switch (direction)
+                {
+                case DIR_EAST:
+                    movementScript = MossdeepGym_Movement_FaceUp;
+                    eventObjects[sRotatingTilePuzzle->objects[i].eventTemplateId].movementType = MOVEMENT_TYPE_FACE_UP;
+                    break;
+                case DIR_SOUTH:
+                    movementScript = MossdeepGym_Movement_FaceRight;
+                    eventObjects[sRotatingTilePuzzle->objects[i].eventTemplateId].movementType = MOVEMENT_TYPE_FACE_RIGHT;
+                    break;
+                case DIR_WEST:
+                    movementScript = MossdeepGym_Movement_FaceDown;
+                    eventObjects[sRotatingTilePuzzle->objects[i].eventTemplateId].movementType = MOVEMENT_TYPE_FACE_DOWN;
+                    break;
+                case DIR_NORTH:
+                    movementScript = MossdeepGym_Movement_FaceLeft;
+                    eventObjects[sRotatingTilePuzzle->objects[i].eventTemplateId].movementType = MOVEMENT_TYPE_FACE_LEFT;
+                    break;
+                default:
+                    continue;
+                }
+                ScriptMovement_StartObjectMovementScript(eventObjects[sRotatingTilePuzzle->objects[i].eventTemplateId].localId,
+                                                         gSaveBlock1Ptr->location.mapNum,
+                                                         gSaveBlock1Ptr->location.mapGroup,
+                                                         movementScript);
+            }
+            else if (r6 == 1)
+            {
+                switch (direction)
+                {
+                case DIR_EAST:
+                    movementScript = MossdeepGym_Movement_FaceDown;
+                    eventObjects[sRotatingTilePuzzle->objects[i].eventTemplateId].movementType = MOVEMENT_TYPE_FACE_DOWN;
+                    break;
+                case DIR_SOUTH:
+                    movementScript = MossdeepGym_Movement_FaceLeft;
+                    eventObjects[sRotatingTilePuzzle->objects[i].eventTemplateId].movementType = MOVEMENT_TYPE_FACE_LEFT;
+                    break;
+                case DIR_WEST:
+                    movementScript = MossdeepGym_Movement_FaceUp;
+                    eventObjects[sRotatingTilePuzzle->objects[i].eventTemplateId].movementType = MOVEMENT_TYPE_FACE_UP;
+                    break;
+                case DIR_NORTH:
+                    movementScript = MossdeepGym_Movement_FaceRight;
+                    eventObjects[sRotatingTilePuzzle->objects[i].eventTemplateId].movementType = MOVEMENT_TYPE_FACE_RIGHT;
+                    break;
+                default:
+                    continue;
+                }
+                ScriptMovement_StartObjectMovementScript(eventObjects[sRotatingTilePuzzle->objects[i].eventTemplateId].localId,
+                                                         gSaveBlock1Ptr->location.mapNum,
+                                                         gSaveBlock1Ptr->location.mapGroup,
+                                                         movementScript);
+            }
+        }
+    }
+}
+
+static void AddEventObject(u8 eventTemplateId, u8 arg1)
+{
+    sRotatingTilePuzzle->objects[sRotatingTilePuzzle->count].eventTemplateId = eventTemplateId;
+    sRotatingTilePuzzle->objects[sRotatingTilePuzzle->count].unk0 = arg1;
+    sRotatingTilePuzzle->count++;
+}
+
+static void sub_81A8D94(u8 eventTemplateId, u8 arg1)
+{
+    s8 r0;
+    s32 r6;
+    s32 puzzleTileStart;
+    u16 movementType;
+    struct EventObjectTemplate *eventObjects = gSaveBlock1Ptr->eventObjectTemplates;
+    s16 x = eventObjects[eventTemplateId].x + 7;
+    s16 y = eventObjects[eventTemplateId].y + 7;
+    u16 metatile = MapGridGetMetatileIdAt(x, y);
+
+    if (!sRotatingTilePuzzle->isTrickHouse)
+        puzzleTileStart = METATILE_MossdeepGym_YellowRightArrow;
+    else
+        puzzleTileStart = METATILE_TrickHousePuzzle_Arrow_YellowOnWhite_Right;
+
+    r0 = (u8)((metatile - puzzleTileStart) % 8);
+    r0 -= arg1;
+    if (r0 < 0 || r0 == 3)
+        r6 = 0;
+    else if (r0 > 0 || r0 == -3)
+        r6 = 1;
+    else
+        r6 = 2;
+
+    movementType = eventObjects[eventTemplateId].movementType;
+    if (r6 == 0)
+    {
+        switch (movementType)
+        {
+        case MOVEMENT_TYPE_FACE_RIGHT:
+            eventObjects[eventTemplateId].movementType = MOVEMENT_TYPE_FACE_UP;
+            break;
+        case MOVEMENT_TYPE_FACE_DOWN:
+            eventObjects[eventTemplateId].movementType = MOVEMENT_TYPE_FACE_RIGHT;
+            break;
+        case MOVEMENT_TYPE_FACE_LEFT:
+            eventObjects[eventTemplateId].movementType = MOVEMENT_TYPE_FACE_DOWN;
+            break;
+        case MOVEMENT_TYPE_FACE_UP:
+            eventObjects[eventTemplateId].movementType = MOVEMENT_TYPE_FACE_LEFT;
+            break;
+        default:
+            break;
+        }
+    }
+    else if (r6 == 1)
+    {
+        switch (movementType)
+        {
+        case MOVEMENT_TYPE_FACE_RIGHT:
+            eventObjects[eventTemplateId].movementType = MOVEMENT_TYPE_FACE_DOWN;
+            break;
+        case MOVEMENT_TYPE_FACE_DOWN:
+            eventObjects[eventTemplateId].movementType = MOVEMENT_TYPE_FACE_LEFT;
+            break;
+        case MOVEMENT_TYPE_FACE_LEFT:
+            eventObjects[eventTemplateId].movementType = MOVEMENT_TYPE_FACE_UP;
+            break;
+        case MOVEMENT_TYPE_FACE_UP:
+            eventObjects[eventTemplateId].movementType = MOVEMENT_TYPE_FACE_RIGHT;
+            break;
+        default:
+            break;
+        }
+    }
+}