sm64pc/src/game/behaviors/bobomb.inc.c

// bobomb.c.inc

static struct ObjectHitbox sBobombHitbox = {
    /* interactType:      */ INTERACT_GRABBABLE,
    /* downOffset:        */ 0,
    /* damageOrCoinValue: */ 0,
    /* health:            */ 0,
    /* numLootCoins:      */ 0,
    /* radius:            */ 65,
    /* height:            */ 113,
    /* hurtboxRadius:     */ 0,
    /* hurtboxHeight:     */ 0,
};

void bhv_bobomb_init(void) {
    o->oGravity = 2.5;
    o->oFriction = 0.8;
    o->oBuoyancy = 1.3;
    o->oInteractionSubtype = INT_SUBTYPE_KICKABLE;
}

void func_802E5B7C(void) {
    if (((o->oBehParams >> 8) & 0x1) == 0) {
        ObjSpawnYellowCoins(o, 1);
        o->oBehParams = 0x100;
        set_object_respawn_info_bits(o, 1);
    }
}

void BobombExplodeLoop(void) {
    struct Object *explosion;
    if (o->oTimer < 5)
        obj_scale(1.0 + (f32) o->oTimer / 5.0);
    else {
        explosion = spawn_object(o, MODEL_EXPLOSION, bhvExplosion);
        explosion->oGraphYOffset += 100.0f;

        func_802E5B7C();
        create_respawner(MODEL_BLACK_BOBOMB, bhvBobomb, 3000);
        o->activeFlags = 0;
    }
}

void CheckBobombInteractions(void) {
    set_object_hitbox(o, &sBobombHitbox);
    if ((o->oInteractStatus & INT_STATUS_INTERACTED) != 0) /* bit 15 */
    {
        if ((o->oInteractStatus & INTERACT_GRABBABLE) != 0) /* bit 1 */
        {
            o->oMoveAngleYaw = gMarioObject->header.gfx.angle[1];
            o->oForwardVel = 25.0;
            o->oVelY = 30.0;
            o->oAction = BOBOMB_ACT_LAUNCHED;
        }

        if ((o->oInteractStatus & INTERACT_TEXT) != 0) /* bit 23 */
            o->oAction = BOBOMB_ACT_EXPLODE;

        o->oInteractStatus = 0;
    }

    if (attack_collided_non_mario_object(o) == 1)
        o->oAction = BOBOMB_ACT_EXPLODE;
}

void BobombPatrolLoop(void) {
    UNUSED s8 filler[4];
    UNUSED s16 sp22;
    s16 collisionFlags;

    sp22 = o->header.gfx.unk38.animFrame;
    o->oForwardVel = 5.0;

    collisionFlags = ObjectStep();
    if ((ObjLeaveIfMarioIsNearHome(o, o->oHomeX, o->oHomeY, o->oHomeZ, 400) == 1)
        && (func_802E46C0(o->oMoveAngleYaw, o->oAngleToMario, 0x2000) == 1)) {
        o->oBobombFuseLit = 1;
        o->oAction = BOBOMB_ACT_CHASE_MARIO;
    }
    ObjCheckFloorDeath(collisionFlags, D_803600E0);
}

void BobombChaseMarioLoop(void) {
    UNUSED u8 filler[4];
    s16 sp1a, collisionFlags;

    sp1a = ++o->header.gfx.unk38.animFrame;
    o->oForwardVel = 20.0;

    collisionFlags = ObjectStep();

    if (sp1a == 5 || sp1a == 16)
        PlaySound2(SOUND_OBJ_BOBOMB_WALK);

    obj_turn_toward_object(o, gMarioObject, 16, 0x800);
    ObjCheckFloorDeath(collisionFlags, D_803600E0);
}

void BobombLaunchedLoop(void) {
    s16 collisionFlags = 0;
    collisionFlags = ObjectStep();
    if ((collisionFlags & 0x1) == 1)
        o->oAction = BOBOMB_ACT_EXPLODE; /* bit 0 */
}

void GenericBobombFreeLoop(void) {
    switch (o->oAction) {
        case BOBOMB_ACT_PATROL:
            BobombPatrolLoop();
            break;

        case BOBOMB_ACT_LAUNCHED:
            BobombLaunchedLoop();
            break;

        case BOBOMB_ACT_CHASE_MARIO:
            BobombChaseMarioLoop();
            break;

        case BOBOMB_ACT_EXPLODE:
            BobombExplodeLoop();
            break;

        case BOBOMB_ACT_LAVA_DEATH:
            if (ObjLavaDeath() == 1)
                create_respawner(MODEL_BLACK_BOBOMB, bhvBobomb, 3000);
            break;

        case BOBOMB_ACT_DEATH_PLANE_DEATH:
            o->activeFlags = 0;
            create_respawner(MODEL_BLACK_BOBOMB, bhvBobomb, 3000);
            break;
    }

    CheckBobombInteractions();

    if (o->oBobombFuseTimer >= 151)
        o->oAction = 3;
}

void StationaryBobombFreeLoop(void) {
    switch (o->oAction) {
        case BOBOMB_ACT_LAUNCHED:
            BobombLaunchedLoop();
            break;

        case BOBOMB_ACT_EXPLODE:
            BobombExplodeLoop();
            break;

        case BOBOMB_ACT_LAVA_DEATH:
            if (ObjLavaDeath() == 1)
                create_respawner(MODEL_BLACK_BOBOMB, bhvBobomb, 3000);
            break;

        case BOBOMB_ACT_DEATH_PLANE_DEATH:
            o->activeFlags = 0;
            create_respawner(MODEL_BLACK_BOBOMB, bhvBobomb, 3000);
            break;
    }

    CheckBobombInteractions();

    if (o->oBobombFuseTimer >= 151)
        o->oAction = 3;
}

void BobombFreeLoop(void) {
    if (o->oBehParams2ndByte == BOBOMB_BP_STYPE_GENERIC)
        GenericBobombFreeLoop();
    else
        StationaryBobombFreeLoop();
}

void BobombHeldLoop(void) {
    o->header.gfx.node.flags |= 0x10; /* bit 4 */
    SetObjAnimation(1);
    obj_set_pos_relative(gMarioObject, 0, 60.0f, 100.0);

    o->oBobombFuseLit = 1;
    if (o->oBobombFuseTimer >= 151) {
        //! Although the Bob-omb's action is set to explode when the fuse timer expires,
        //  BobombExplodeLoop() will not execute until the bob-omb's held state changes.
        //  This allows the Bob-omb to be regrabbed indefinitely.

        gMarioObject->oInteractStatus |= INTERACT_DAMAGE; /* bit 3 */
        o->oAction = BOBOMB_ACT_EXPLODE;
    }
}

void BobombDroppedLoop(void) {
    obj_get_dropped();

    o->header.gfx.node.flags &= ~0x10; /* bit 4 = 0 */
    SetObjAnimation(0);

    o->oHeldState = 0;
    o->oAction = BOBOMB_ACT_PATROL;
}

void BobombThrownLoop(void) {
    obj_enable_rendering_2();

    o->header.gfx.node.flags &= ~0x10; /* bit 4 = 0 */
    o->oHeldState = 0;
    o->oFlags &= ~0x8; /* bit 3 */
    o->oForwardVel = 25.0;
    o->oVelY = 20.0;
    o->oAction = BOBOMB_ACT_LAUNCHED;
}

// sp18 = blinkTimer

void ObjRandomBlink(s32 *blinkTimer) {
    if (*blinkTimer == 0) {
        if ((s16)(RandomFloat() * 100.0f) == 0) {
            o->oAnimState = 1;
            *blinkTimer = 1;
        }
    } else {
        (*blinkTimer)++;
        if (*blinkTimer >= 6)
            o->oAnimState = 0;
        if (*blinkTimer >= 11)
            o->oAnimState = 1;
        if (*blinkTimer >= 16) {
            o->oAnimState = 0;
            *blinkTimer = 0;
        }
    }
}

void bhv_bobomb_loop(void) {
    s8 dustPeriodMinus1;
    if (is_point_within_radius_of_mario(o->oPosX, o->oPosY, o->oPosZ, 4000) != 0) {
        switch (o->oHeldState) {
            case HELD_FREE:
                BobombFreeLoop();
                break;

            case HELD_HELD:
                BobombHeldLoop();
                break;

            case HELD_THROWN:
                BobombThrownLoop();
                break;

            case HELD_DROPPED:
                BobombDroppedLoop();
                break;
        }

        ObjRandomBlink(&o->oBobombBlinkTimer);

        if (o->oBobombFuseLit == 1) {
            if (o->oBobombFuseTimer >= 121)
                dustPeriodMinus1 = 1;
            else
                dustPeriodMinus1 = 7;

            if ((dustPeriodMinus1 & o->oBobombFuseTimer)
                == 0) /* oBobombFuseTimer % 2 or oBobombFuseTimer % 8 */
                spawn_object(o, MODEL_SMOKE, bhvBobombFuseSmoke);

            PlaySound(SOUND_AIR_BOBOMB_LIT_FUSE);

            o->oBobombFuseTimer++;
        }
    }
}

void bhv_bobomb_fuse_smoke_init(void) {
    o->oPosX += (s32)(RandomFloat() * 80.0f) - 40;
    o->oPosY += (s32)(RandomFloat() * 80.0f) + 60;
    o->oPosZ += (s32)(RandomFloat() * 80.0f) - 40;
    obj_scale(1.2f);
}

void bhv_bobomb_buddy_init(void) {
    o->oGravity = 2.5;
    o->oFriction = 0.8;
    o->oBuoyancy = 1.3;
    o->oInteractionSubtype = INT_SUBTYPE_NPC;
}

void BobombBuddyIdleLoop(void) {
    UNUSED u8 filler[4];
    s16 sp1a = o->header.gfx.unk38.animFrame;
    UNUSED s16 collisionFlags = 0;

    o->oBobombBuddyPosXCopy = o->oPosX;
    o->oBobombBuddyPosYCopy = o->oPosY;
    o->oBobombBuddyPosZCopy = o->oPosZ;

    collisionFlags = ObjectStep();

    if ((sp1a == 5) || (sp1a == 16))
        PlaySound2(SOUND_OBJ_BOBOMB_WALK);

    if (o->oDistanceToMario < 1000.0f)
        o->oMoveAngleYaw = approach_s16_symmetric(o->oMoveAngleYaw, o->oAngleToMario, 0x140);

    if (o->oInteractStatus == INT_STATUS_INTERACTED)
        o->oAction = BOBOMB_BUDDY_ACT_TURN_TO_TALK;
}

/**
 * Function for the Bob-omb Buddy cannon guy.
 * dialogFirstText is the first dialogID called when Bob-omb Buddy 
 * starts to talk to Mario to prepare the cannon(s) for him.
 * Then the camera goes to the nearest cannon, to play the "prepare cannon" cutscene
 * dialogSecondText is called after Bob-omb Buddy has the cannon(s) ready and
 * then tells Mario that is "Ready for blastoff".
 */
void BobombBuddyCannonLoop(s16 dialogFirstText, s16 dialogSecondText) {
    struct Object *cannonClosed;
    s16 buddyText, cutscene;

    switch (o->oBobombBuddyCannonStatus) {
        case BOBOMB_BUDDY_CANNON_UNOPENED:
            buddyText = cutscene_object_with_dialog(CUTSCENE_DIALOG_1, o, dialogFirstText);
            if (buddyText != 0) {
                save_file_set_cannon_unlocked();
                cannonClosed = obj_nearest_object_with_behavior(bhvCannonClosed);
                if (cannonClosed != 0)
                    o->oBobombBuddyCannonStatus = BOBOMB_BUDDY_CANNON_OPENING;
                else
                    o->oBobombBuddyCannonStatus = BOBOMB_BUDDY_CANNON_STOP_TALKING;
            }
            break;

        case BOBOMB_BUDDY_CANNON_OPENING:
            cannonClosed = obj_nearest_object_with_behavior(bhvCannonClosed);
            cutscene = cutscene_object(CUTSCENE_PREPARE_CANNON, cannonClosed);
            if (cutscene == -1)
                o->oBobombBuddyCannonStatus = BOBOMB_BUDDY_CANNON_OPENED;
            break;

        case BOBOMB_BUDDY_CANNON_OPENED:
            buddyText = cutscene_object_with_dialog(CUTSCENE_DIALOG_1, o, dialogSecondText);
            if (buddyText != 0)
                o->oBobombBuddyCannonStatus = BOBOMB_BUDDY_CANNON_STOP_TALKING;
            break;

        case BOBOMB_BUDDY_CANNON_STOP_TALKING:
            set_mario_npc_dialog(0);

            o->activeFlags &= ~0x20; /* bit 5 */
            o->oBobombBuddyHasTalkedToMario = BOBOMB_BUDDY_HAS_TALKED;
            o->oInteractStatus = 0;
            o->oAction = BOBOMB_BUDDY_ACT_IDLE;
            o->oBobombBuddyCannonStatus = BOBOMB_BUDDY_CANNON_OPENED;
            break;
    }
}

void BobombBuddyTalkLoop(void) {
    if (set_mario_npc_dialog(1) == 2) {
        o->activeFlags |= 0x20; /* bit 5 */

        switch (o->oBobombBuddyRole) {
            case BOBOMB_BUDDY_ROLE_ADVICE:
                if (cutscene_object_with_dialog(CUTSCENE_DIALOG_1, o, o->oBehParams2ndByte) != BOBOMB_BUDDY_BP_STYPE_GENERIC) {
                    set_mario_npc_dialog(0);

                    o->activeFlags &= ~0x20; /* bit 5 */
                    o->oBobombBuddyHasTalkedToMario = BOBOMB_BUDDY_HAS_TALKED;
                    o->oInteractStatus = 0;
                    o->oAction = BOBOMB_BUDDY_ACT_IDLE;
                }
                break;

            case BOBOMB_BUDDY_ROLE_CANNON:
                if (gCurrCourseNum == COURSE_BOB)
                    BobombBuddyCannonLoop(4, 105);
                else
                    BobombBuddyCannonLoop(47, 106);
                break;
        }
    }
}

void BobombBuddyTurnToTalkLoop(void) {
    s16 sp1e = o->header.gfx.unk38.animFrame;
    if ((sp1e == 5) || (sp1e == 16))
        PlaySound2(SOUND_OBJ_BOBOMB_WALK);

    o->oMoveAngleYaw = approach_s16_symmetric(o->oMoveAngleYaw, o->oAngleToMario, 0x1000);
    if ((s16) o->oMoveAngleYaw == (s16) o->oAngleToMario)
        o->oAction = BOBOMB_BUDDY_ACT_TALK;

    PlaySound2(SOUND_ACTION_READ_SIGN);
}

void BobombBuddyActionLoop(void) {
    switch (o->oAction) {
        case BOBOMB_BUDDY_ACT_IDLE:
            BobombBuddyIdleLoop();
            break;

        case BOBOMB_BUDDY_ACT_TURN_TO_TALK:
            BobombBuddyTurnToTalkLoop();
            break;

        case BOBOMB_BUDDY_ACT_TALK:
            BobombBuddyTalkLoop();
            break;
    }

    SetObjectVisibility(o, 3000);
}

void bhv_bobomb_buddy_loop(void) {
    BobombBuddyActionLoop();

    ObjRandomBlink(&o->oBobombBuddyBlinkTimer);

    o->oInteractStatus = 0;
}