path: root/src/field_map_obj.c

#include "global.h"
#include "asm.h"
#include "event_data.h"
#include "field_map_obj.h"
#include "rom4.h"
#include "sprite.h"

extern const struct SpriteTemplate *const gFieldEffectObjectTemplatePointers[36];

extern void strange_npc_table_clear(void);
extern void ClearPlayerAvatarInfo(void);
extern void npc_load_two_palettes__no_record();
extern void npc_load_two_palettes__and_record();
extern void sub_8060388(s16, s16, s16 *, s16 *);
extern void sub_80634D0();

void sub_805AAB0(void);
u8 GetFieldObjectIdByLocalId(u8);
u8 GetFieldObjectIdByLocalIdAndMapInternal(u8, u8, u8);
u8 GetAvailableFieldObjectSlot(u16, u8, u8, u8 *);
void FieldObjectHandleDynamicGraphicsId();
void RemoveFieldObjectInternal(struct MapObject *);
u16 GetFieldObjectFlagIdByFieldObjectId();
void MakeObjectTemplateFromFieldObjectTemplate(struct MapObjectTemplate *mapObjTemplate, struct SpriteTemplate *sprTemplate, struct SubspriteTable **subspriteTables);
struct MapObjectTemplate *GetFieldObjectTemplateByLocalIdAndMap();
void GetFieldObjectMovingCameraOffset(s16 *, s16 *);
void sub_805BDF8();

extern struct LinkPlayerMapObject gLinkPlayerMapObjects[];

extern const u8 gUnknown_0836DBBC[];
extern const u8 gUnknown_0836DC09[];
extern void (*const gUnknown_0836DA88[])(struct Sprite *);

void npc_clear_ids_and_state(struct MapObject *mapObj)
{
    memset(mapObj, 0, sizeof(struct MapObject));
    mapObj->localId = 0xFF;
    mapObj->mapNum = 0xFF;
    mapObj->mapGroup = 0xFF;
    mapObj->mapobj_unk_1C = 0xFF;
}

void npcs_clear_ids_and_state(void)
{
    u8 i;

    for (i = 0; i < 16; i++)
        npc_clear_ids_and_state(&gMapObjects[i]);
}

void sub_805AA98(void)
{
    strange_npc_table_clear();
    npcs_clear_ids_and_state();
    ClearPlayerAvatarInfo();
    sub_805AAB0();
}

void sub_805AAB0(void)
{
    u8 spriteId;

    spriteId = CreateSpriteAtEnd(gFieldEffectObjectTemplatePointers[21], 0, 0, 0x1F);

    gSprites[spriteId].oam.affineMode = 1;
    InitSpriteAffineAnim(&gSprites[spriteId]);
    StartSpriteAffineAnim(&gSprites[spriteId], 0);
    gSprites[spriteId].invisible = 1;

    spriteId = CreateSpriteAtEnd(gFieldEffectObjectTemplatePointers[21], 0, 0, 0x1F);

    gSprites[spriteId].oam.affineMode = 1;
    InitSpriteAffineAnim(&gSprites[spriteId]);
    StartSpriteAffineAnim(&gSprites[spriteId], 1);
    gSprites[spriteId].invisible = 1;
}

u8 sub_805AB54(void)
{
    u8 i;
    
    for (i = 0; i < 16; i++)
    {
        if (!gMapObjects[i].active)
            break;
    }
    return i;
}

u8 GetFieldObjectIdByLocalIdAndMap(u8 localId, u8 mapNum, u8 mapGroup)
{
    if (localId <= 0xFE)
        return GetFieldObjectIdByLocalIdAndMapInternal(localId, mapNum, mapGroup);
    else
        return GetFieldObjectIdByLocalId(localId);
}

bool8 TryGetFieldObjectIdByLocalIdAndMap(u8 localId, u8 mapNum, u8 mapGroup, u8 *mapObjectId)
{
    *mapObjectId = GetFieldObjectIdByLocalIdAndMap(localId, mapNum, mapGroup);
    if (*mapObjectId == 16)
        return TRUE;
    else
        return FALSE;
}

u8 GetFieldObjectIdByXY(s16 x, s16 y)
{
    u8 i;
    
    for (i = 0; i < 16; i++)
    {
        if (gMapObjects[i].active && gMapObjects[i].coords2.x == x && gMapObjects[i].coords2.y == y)
            break;
    }
    return i;
}

u8 GetFieldObjectIdByLocalIdAndMapInternal(u8 localId, u8 mapNum, u8 mapGroup)
{
    u8 i;
    
    for (i = 0; i < 16; i++)
    {
        if (gMapObjects[i].active && gMapObjects[i].localId == localId && gMapObjects[i].mapNum == mapNum && gMapObjects[i].mapGroup == mapGroup)
            return i;
    }
    return 16;
}

u8 GetFieldObjectIdByLocalId(u8 localId)
{
    u8 i;
    
    for (i = 0; i < 16; i++)
    {
        if (gMapObjects[i].active && gMapObjects[i].localId == localId)
            return i;
    }
    return 16;
}

#ifdef NONMATCHING
u8 InitFieldObjectStateFromTemplate(struct MapObjectTemplate *template, u8 b, u8 c)
{
    struct MapObject2 *mapObj;  //TODO: resolve the mapobj_unk_19b weirdness
    u8 var;
    u16 r3;
    u16 r2;
    
    //asm("nop"::"r"(b));
    if (GetAvailableFieldObjectSlot(template->localId, b, c, &var) != 0)
        return 16;
    //_0805ACCE
    mapObj = (struct MapObject2 *)&gMapObjects[var];
    npc_clear_ids_and_state((struct MapObject *)mapObj);
    r3 = template->x + 7;
    r2 = template->y + 7;
    mapObj->active = TRUE;
    mapObj->mapobj_bit_2 = TRUE;
    mapObj->graphicsId = template->graphicsId;
    mapObj->animPattern = template->movementType;
    mapObj->localId = template->localId;
    mapObj->mapNum = b;
    mapObj->mapGroup = c;
    mapObj->coords1.x = r3;
    mapObj->coords1.y = r2;
    mapObj->coords2.x = r3;
    mapObj->coords2.y = r2;
    mapObj->coords3.x = r3;
    mapObj->coords3.y = r2;
    mapObj->mapobj_unk_0B_0 = template->elevation;
    mapObj->elevation = template->elevation;
    mapObj->mapobj_unk_19 = template->unkA_0;
    mapObj->mapobj_unk_19b = template->unkA_4;
    mapObj->trainerType = template->unkC;
    mapObj->trainerRange_berryTreeId = template->unkE;
    mapObj->mapobj_unk_20 = gUnknown_0836DC09[template->movementType];
    FieldObjectSetDirection((struct MapObject *)mapObj, mapObj->mapobj_unk_20);
    FieldObjectHandleDynamicGraphicsId(mapObj);
    //asm("":::"r5","r6");
    if (gUnknown_0836DBBC[mapObj->animPattern] != 0)
    {
        if (mapObj->mapobj_unk_19 == 0)
            mapObj->mapobj_unk_19++;
        if (mapObj->mapobj_unk_19b == 0)
            mapObj->mapobj_unk_19b++;
    }
    return var;
}
#else
__attribute__((naked))
u8 InitFieldObjectStateFromTemplate(struct MapObjectTemplate *template, u8 b, u8 c)
{
    asm(".syntax unified\n\
    push {r4-r7,lr}\n\
    mov r7, r9\n\
    mov r6, r8\n\
    push {r6,r7}\n\
    sub sp, 0x4\n\
    adds r5, r0, 0\n\
    lsls r1, 24\n\
    lsrs r6, r1, 24\n\
    lsls r2, 24\n\
    lsrs r7, r2, 24\n\
    ldrb r0, [r5]\n\
    adds r1, r6, 0\n\
    adds r2, r7, 0\n\
    mov r3, sp\n\
    bl GetAvailableFieldObjectSlot\n\
    lsls r0, 24\n\
    cmp r0, 0\n\
    beq _0805ACCE\n\
    movs r0, 0x10\n\
    b _0805ADC2\n\
_0805ACCE:\n\
    mov r0, sp\n\
    ldrb r1, [r0]\n\
    lsls r0, r1, 3\n\
    adds r0, r1\n\
    lsls r0, 2\n\
    ldr r1, _0805ADD0 @ =gMapObjects\n\
    adds r4, r0, r1\n\
    adds r0, r4, 0\n\
    bl npc_clear_ids_and_state\n\
    ldrh r3, [r5, 0x4]\n\
    adds r3, 0x7\n\
    lsls r3, 16\n\
    lsrs r3, 16\n\
    ldrh r2, [r5, 0x6]\n\
    adds r2, 0x7\n\
    lsls r2, 16\n\
    lsrs r2, 16\n\
    ldrb r0, [r4]\n\
    movs r1, 0x1\n\
    orrs r0, r1\n\
    movs r1, 0x4\n\
    orrs r0, r1\n\
    strb r0, [r4]\n\
    ldrb r0, [r5, 0x1]\n\
    strb r0, [r4, 0x5]\n\
    ldrb r0, [r5, 0x9]\n\
    strb r0, [r4, 0x6]\n\
    ldrb r0, [r5]\n\
    strb r0, [r4, 0x8]\n\
    strb r6, [r4, 0x9]\n\
    strb r7, [r4, 0xA]\n\
    strh r3, [r4, 0xC]\n\
    strh r2, [r4, 0xE]\n\
    strh r3, [r4, 0x10]\n\
    strh r2, [r4, 0x12]\n\
    strh r3, [r4, 0x14]\n\
    strh r2, [r4, 0x16]\n\
    ldrb r0, [r5, 0x8]\n\
    movs r7, 0xF\n\
    adds r1, r7, 0\n\
    ands r1, r0\n\
    ldrb r2, [r4, 0xB]\n\
    movs r0, 0x10\n\
    negs r0, r0\n\
    mov r8, r0\n\
    ands r0, r2\n\
    orrs r0, r1\n\
    strb r0, [r4, 0xB]\n\
    ldrb r1, [r5, 0x8]\n\
    lsls r1, 4\n\
    ands r0, r7\n\
    orrs r0, r1\n\
    strb r0, [r4, 0xB]\n\
    ldrb r1, [r5, 0xA]\n\
    lsls r1, 28\n\
    movs r0, 0xF\n\
    mov r9, r0\n\
    lsrs r1, 28\n\
    ldrb r2, [r4, 0x19]\n\
    mov r0, r8\n\
    ands r0, r2\n\
    orrs r0, r1\n\
    strb r0, [r4, 0x19]\n\
    ldrb r1, [r5, 0xA]\n\
    lsrs r1, 4\n\
    lsls r1, 4\n\
    ands r0, r7\n\
    orrs r0, r1\n\
    strb r0, [r4, 0x19]\n\
    ldrh r0, [r5, 0xC]\n\
    strb r0, [r4, 0x7]\n\
    ldrh r0, [r5, 0xE]\n\
    strb r0, [r4, 0x1D]\n\
    ldr r1, _0805ADD4 @ =gUnknown_0836DC09\n\
    ldrb r0, [r5, 0x9]\n\
    adds r0, r1\n\
    ldrb r1, [r0]\n\
    adds r0, r4, 0\n\
    adds r0, 0x20\n\
    strb r1, [r0]\n\
    ldrb r1, [r0]\n\
    adds r0, r4, 0\n\
    bl FieldObjectSetDirection\n\
    adds r0, r4, 0\n\
    bl FieldObjectHandleDynamicGraphicsId\n\
    ldr r1, _0805ADD8 @ =gUnknown_0836DBBC\n\
    ldrb r0, [r4, 0x6]\n\
    adds r0, r1\n\
    ldrb r0, [r0]\n\
    cmp r0, 0\n\
    beq _0805ADBE\n\
    ldrb r2, [r4, 0x19]\n\
    adds r0, r7, 0\n\
    ands r0, r2\n\
    cmp r0, 0\n\
    bne _0805ADA6\n\
    lsls r0, r2, 28\n\
    lsrs r0, 28\n\
    adds r0, 0x1\n\
    mov r1, r9\n\
    ands r0, r1\n\
    mov r1, r8\n\
    ands r1, r2\n\
    orrs r1, r0\n\
    strb r1, [r4, 0x19]\n\
_0805ADA6:\n\
    ldrb r2, [r4, 0x19]\n\
    movs r0, 0xF0\n\
    ands r0, r2\n\
    cmp r0, 0\n\
    bne _0805ADBE\n\
    lsrs r1, r2, 4\n\
    adds r1, 0x1\n\
    lsls r1, 4\n\
    adds r0, r7, 0\n\
    ands r0, r2\n\
    orrs r0, r1\n\
    strb r0, [r4, 0x19]\n\
_0805ADBE:\n\
    mov r0, sp\n\
    ldrb r0, [r0]\n\
_0805ADC2:\n\
    add sp, 0x4\n\
    pop {r3,r4}\n\
    mov r8, r3\n\
    mov r9, r4\n\
    pop {r4-r7}\n\
    pop {r1}\n\
    bx r1\n\
    .align 2, 0\n\
_0805ADD0: .4byte gMapObjects\n\
_0805ADD4: .4byte gUnknown_0836DC09\n\
_0805ADD8: .4byte gUnknown_0836DBBC\n\
    .syntax divided\n");
}
#endif

u8 sub_805ADDC(u8 localId)
{
    u8 objectCount;
    u8 i;
    
    if (gMapHeader.events == NULL)
        return 16;
    objectCount = gMapHeader.events->mapObjectCount;
    for (i = 0; i < objectCount; i++)
    {
        struct MapObjectTemplate *template = &gSaveBlock1.mapObjectTemplates[i];
        
        if (template->localId == localId && !FlagGet(template->unk14))
            return InitFieldObjectStateFromTemplate(template, gSaveBlock1.location.mapNum, gSaveBlock1.location.mapGroup);
    }
    return 16;
}

u8 GetAvailableFieldObjectSlot(u16 a, u8 b, u8 c, u8 *d)
{
    u8 i = 0;
    
    for (i = 0; i < 16 && gMapObjects[i].active; i++)
    {
        if (gMapObjects[i].localId == a && gMapObjects[i].mapNum == b && gMapObjects[i].mapGroup == c)
            return 1;
    }
    if (i >= 16)
        return 1;
    *d = i;
    for (; i < 16; i++)
    {
        if (gMapObjects[i].active && gMapObjects[i].localId == a && gMapObjects[i].mapNum == b && gMapObjects[i].mapGroup == c)
            return 1;
    }
    return 0;
}

void RemoveFieldObject(struct MapObject *mapObject)
{
    mapObject->active = FALSE;
    RemoveFieldObjectInternal(mapObject);
}

void RemoveFieldObjectByLocalIdAndMap(u8 localId, u8 mapNum, u8 mapGroup)
{
    u8 mapObjectId;
    
    if (TryGetFieldObjectIdByLocalIdAndMap(localId, mapNum, mapGroup, &mapObjectId))
        return;
    FlagSet(GetFieldObjectFlagIdByFieldObjectId(mapObjectId));
    RemoveFieldObject(&gMapObjects[mapObjectId]);
}

void RemoveFieldObjectInternal(struct MapObject *mapObject)
{
    struct SpriteFrameImage image;
    struct MapObjectGraphicsInfo *gfxInfo = GetFieldObjectGraphicsInfo(mapObject->graphicsId);
    
    image.size = gfxInfo->size;
    gSprites[mapObject->spriteId].images = &image;
    DestroySprite(&gSprites[mapObject->spriteId]);
}

void npc_hide_all_but_player(void)
{
    u8 i;
    
    for (i = 0; i < 16; i++)
    {
        if (i != gPlayerAvatar.mapObjectId)
            RemoveFieldObject(&gMapObjects[i]);
    }
}

u8 sub_805AFCC(struct MapObjectTemplate *mapObjTemplate, struct SpriteTemplate *sprTemplate, u8 c, u8 d, s16 e, s16 f)
{
    u8 mapObjectId;
    u8 spriteId;
    struct MapObjectGraphicsInfo *gfxInfo;
    struct MapObject *mapObject;
    struct Sprite *sprite;
    
    mapObjectId = InitFieldObjectStateFromTemplate(mapObjTemplate, c, d);
    if (mapObjectId == 16)
        return 16;
    
    mapObject = &gMapObjects[mapObjectId];
    gfxInfo = GetFieldObjectGraphicsInfo(mapObject->graphicsId);
    if (gfxInfo->paletteSlot == 0)
        npc_load_two_palettes__no_record(gfxInfo->paletteTag1, gfxInfo->paletteSlot);
    else if (gfxInfo->paletteSlot == 10)
        npc_load_two_palettes__and_record(gfxInfo->paletteTag1, gfxInfo->paletteSlot);
    if (mapObject->animPattern == 0x4C)
        mapObject->mapobj_bit_13 = TRUE;
    
#ifdef NONMATCHING
    sprTemplate->paletteTag = 0xFFFF;
#else
    *(u16 *)&sprTemplate->paletteTag = 0xFFFF;
#endif
    spriteId = CreateSprite(sprTemplate, 0, 0, 0);
    if (spriteId == 64)
    {
        gMapObjects[mapObjectId].active = FALSE;
        return 16;
    }
    sprite = &gSprites[spriteId];
    sub_8060388(e + mapObject->coords2.x, f + mapObject->coords2.y, &sprite->pos1.x, &sprite->pos1.y);
    sprite->centerToCornerVecX = -(gfxInfo->width >> 1);
    sprite->centerToCornerVecY = -(gfxInfo->height >> 1);
    sprite->pos1.x += 8;
    sprite->pos1.y += 16 + sprite->centerToCornerVecY;
    sprite->oam.paletteNum = gfxInfo->paletteSlot;
    sprite->coordOffsetEnabled = TRUE;
    sprite->data0 = mapObjectId;
    mapObject->spriteId = spriteId;
    mapObject->mapobj_bit_12 = gfxInfo->inanimate;
    if (!mapObject->mapobj_bit_12)
        StartSpriteAnim(sprite, FieldObjectDirectionToImageAnimId(mapObject->mapobj_unk_18));
    SetObjectSubpriorityByZCoord(mapObject->elevation, sprite, 1);
    sub_80634D0(mapObject, sprite);
    return mapObjectId;
}

u8 SpawnFieldObject(struct MapObjectTemplate *mapObjTemplate, u8 b, u8 c, s16 d, s16 e)
{
    struct SpriteTemplate spriteTemplate;
    struct SubspriteTable *subspriteTables = NULL;
    struct SpriteFrameImage spriteFrameImage;
    struct MapObjectGraphicsInfo *gfxInfo;
    u8 mapObjectId;
    
    gfxInfo = GetFieldObjectGraphicsInfo(mapObjTemplate->graphicsId);
    MakeObjectTemplateFromFieldObjectTemplate(mapObjTemplate, &spriteTemplate, &subspriteTables);
    spriteFrameImage.size = gfxInfo->size;
    spriteTemplate.images = &spriteFrameImage;
    mapObjectId = sub_805AFCC(mapObjTemplate, &spriteTemplate, b, c, d, e);
    if (mapObjectId == 16)
        return 16;
    gSprites[gMapObjects[mapObjectId].spriteId].images = gfxInfo->images;
    if (subspriteTables != NULL)
        SetSubspriteTables(&gSprites[gMapObjects[mapObjectId].spriteId], subspriteTables);
    return mapObjectId;
}

u8 SpawnSpecialFieldObject(struct MapObjectTemplate *mapObjTemplate)
{
    s16 x;
    s16 y;
    
    GetFieldObjectMovingCameraOffset(&x, &y);
    return SpawnFieldObject(mapObjTemplate, gSaveBlock1.location.mapNum, gSaveBlock1.location.mapGroup, x, y);
}

u8 SpawnSpecialFieldObjectParametrized(u8 a, u8 b, u8 c, s16 d, s16 e, u8 f)
{
    struct MapObjectTemplate mapObjTemplate;
    
    d -= 7;
    e -= 7;
    mapObjTemplate.localId = c;
    mapObjTemplate.graphicsId = a;
    mapObjTemplate.unk2 = 0;
    mapObjTemplate.x = d;
    mapObjTemplate.y = e;
    mapObjTemplate.elevation = f;
    mapObjTemplate.movementType = b;
    mapObjTemplate.unkA_0 = 0;
    mapObjTemplate.unkA_4 = 0;
    mapObjTemplate.unkC = 0;
    mapObjTemplate.unkE = 0;
    return SpawnSpecialFieldObject(&mapObjTemplate);
}

u8 show_sprite(u8 a, u8 b, u8 c)
{
    struct MapObjectTemplate *r5;
    s16 x;
    s16 y;
    
    r5 = GetFieldObjectTemplateByLocalIdAndMap(a, b, c);
    if (r5 == NULL)
        return 16;
    GetFieldObjectMovingCameraOffset(&x, &y);
    return SpawnFieldObject(r5, b, c, x, y);
}

void MakeObjectTemplateFromFieldObjectGraphicsInfo(u16 graphicsId, void (*callback)(struct Sprite *), struct SpriteTemplate *sprTemplate, struct SubspriteTable **subspriteTables)
{
    struct MapObjectGraphicsInfo *gfxInfo = GetFieldObjectGraphicsInfo(graphicsId);
    
    sprTemplate->tileTag = gfxInfo->tileTag;
    sprTemplate->paletteTag = gfxInfo->paletteTag1;
    sprTemplate->oam = gfxInfo->oam;
    sprTemplate->anims = gfxInfo->anims;
    sprTemplate->images = gfxInfo->images;
    sprTemplate->affineAnims = gfxInfo->affineAnims;
    sprTemplate->callback = callback;
    *subspriteTables = gfxInfo->subspriteTables;
}

void MakeObjectTemplateFromFieldObjectGraphicsInfoWithCallbackIndex(u16 graphicsId, u16 callbackIndex, struct SpriteTemplate *sprTemplate, struct SubspriteTable **subspriteTables)
{
    MakeObjectTemplateFromFieldObjectGraphicsInfo(graphicsId, gUnknown_0836DA88[callbackIndex], sprTemplate, subspriteTables);
}

void MakeObjectTemplateFromFieldObjectTemplate(struct MapObjectTemplate *mapObjTemplate, struct SpriteTemplate *sprTemplate, struct SubspriteTable **subspriteTables)
{
    MakeObjectTemplateFromFieldObjectGraphicsInfoWithCallbackIndex(mapObjTemplate->graphicsId, mapObjTemplate->movementType, sprTemplate, subspriteTables);
}

u8 AddPseudoFieldObject(u16 graphicsId, void (*callback)(struct Sprite *), s16 c, s16 d, u8 subpriority)
{
    struct SpriteTemplate spriteTemplate;
    struct SubspriteTable *subspriteTables;
    u8 spriteId;
    
    MakeObjectTemplateFromFieldObjectGraphicsInfo(graphicsId, callback, &spriteTemplate, &subspriteTables);
    if (spriteTemplate.paletteTag != 0xFFFF)
        sub_805BDF8(spriteTemplate.paletteTag);
    spriteId = CreateSprite(&spriteTemplate, c, d, subpriority);
    if (spriteId != 64 && subspriteTables != NULL)
    {
        SetSubspriteTables(&gSprites[spriteId], subspriteTables);
        gSprites[spriteId].subspriteMode = 2;
    }
    return spriteId;
}

extern void sub_8064970(struct Sprite *);
extern void sub_8060470();
extern void InitObjectPriorityByZCoord();

u8 sub_805B410(u8 a, u8 b, s16 c, s16 d, u8 e, u8 f)
{
    struct MapObjectGraphicsInfo *gfxInfo;
    struct SpriteTemplate spriteTemplate;
    struct SubspriteTable *subspriteTables;
    u8 spriteId;
    
    gfxInfo = GetFieldObjectGraphicsInfo(a);
    MakeObjectTemplateFromFieldObjectGraphicsInfo(a, sub_8064970, &spriteTemplate, &subspriteTables);
#ifdef NONMATCHING
    spriteTemplate.paletteTag = 0xFFFF;
#else
    *(u16 *)&spriteTemplate.paletteTag = 0xFFFF;
#endif
    c += 7;
    d += 7;
    sub_8060470(&c, &d, 8, 16);
    spriteId = CreateSpriteAtEnd(&spriteTemplate, c, d, 0);
    if (spriteId != 64)
    {
        struct Sprite *sprite = &gSprites[spriteId];
        
        sprite->centerToCornerVecX = -(gfxInfo->width >> 1);
        sprite->centerToCornerVecY = -(gfxInfo->height >> 1);
        sprite->pos1.y += sprite->centerToCornerVecY;
        sprite->oam.paletteNum = gfxInfo->paletteSlot;
        sprite->coordOffsetEnabled = TRUE;
        sprite->data0 = b;
        sprite->data1 = e;
        if (gfxInfo->paletteSlot == 10)
            npc_load_two_palettes__and_record(gfxInfo->paletteTag1, gfxInfo->paletteSlot);
        if (subspriteTables != NULL)
        {
            SetSubspriteTables(sprite, subspriteTables);
            sprite->subspriteMode = 2;
        }
        InitObjectPriorityByZCoord(sprite, e);
        SetObjectSubpriorityByZCoord(e, sprite, 1);
        StartSpriteAnim(sprite, FieldObjectDirectionToImageAnimId(f));
    }
    return spriteId;
}

void sub_805B55C(s16 a, s16 b)
{
    u8 i;
    
    if (gMapHeader.events != NULL)
    {
        s16 r9 = gSaveBlock1.pos.x - 2;
        s16 sp8 = gSaveBlock1.pos.x + 17;
        s16 r10 = gSaveBlock1.pos.y;
        s16 spC = gSaveBlock1.pos.y + 16;
        u8 objectCount = gMapHeader.events->mapObjectCount;
        
        for (i = 0; i < objectCount; i++)
        {
            struct MapObjectTemplate *template = &gSaveBlock1.mapObjectTemplates[i];
            s16 foo = template->x + 7;
            s16 bar = template->y + 7;
            
            if (r10 <= bar && spC >= bar && r9 <= foo && sp8 >= foo
             && !FlagGet(template->unk14))
                SpawnFieldObject(template, gSaveBlock1.location.mapNum, gSaveBlock1.location.mapGroup, a, b);
        }
    }
}

void RemoveFieldObjectIfOutsideView(struct MapObject *mapObject);

void RemoveFieldObjectsOutsideView(void)
{
    u8 i;
    u8 j;
    
    for (i = 0; i < 16; i++)
    {
        bool8 isActiveLinkPlayer;
        
        for (j = 0, isActiveLinkPlayer = 0; j < 4; j++)
        {
            if (gLinkPlayerMapObjects[j].active && i == gLinkPlayerMapObjects[j].mapObjId)
                isActiveLinkPlayer = TRUE;
        }
        if (!isActiveLinkPlayer)
        {
            struct MapObject *mapObject = &gMapObjects[i];
            
            if (mapObject->active && !mapObject->mapobj_bit_16)
            RemoveFieldObjectIfOutsideView(mapObject);
        }
    }
}

void RemoveFieldObjectIfOutsideView(struct MapObject *mapObject)
{
    s16 r7 = gSaveBlock1.pos.x - 2;
    s16 r5 = gSaveBlock1.pos.x + 17;
    s16 r4 = gSaveBlock1.pos.y;
    s16 r6 = gSaveBlock1.pos.y + 16;
    
    if (mapObject->coords2.x >= r7 && mapObject->coords2.x <= r5
     && mapObject->coords2.y >= r4 && mapObject->coords2.y <= r6)
        return;
    if (mapObject->coords1.x >= r7 && mapObject->coords1.x <= r5
     && mapObject->coords1.y >= r4 && mapObject->coords1.y <= r6)
        return;
    RemoveFieldObject(mapObject);
}

void sub_805B75C(int, s16, s16);

void sub_805B710(u16 a, u16 b)
{
    u8 i;
    
    ClearPlayerAvatarInfo();
    for (i = 0; i < 16; i++)
    {
        if (gMapObjects[i].active)
            sub_805B75C(i, a, b);
    }
    sub_805AAB0();
}