/**
 * @file Behavior file for the manta ray in DDD.
 *
 * The manta ray spawns on stars 2-6. It generally follows a fixed path, leaving rings.
 * These rings contain a significant bug that is documented in water_ring.inc.c
 */

static Trajectory sMantaRayTraj[] = {
    TRAJECTORY_POS(0, /*pos*/ -4500, -1380,   -40),
    TRAJECTORY_POS(1, /*pos*/ -4120, -2240,   740),
    TRAJECTORY_POS(2, /*pos*/ -3280, -3080,  1040),
    TRAJECTORY_POS(3, /*pos*/ -2240, -3320,   720),
    TRAJECTORY_POS(4, /*pos*/ -1840, -3140,  -280),
    TRAJECTORY_POS(5, /*pos*/ -2320, -2480, -1100),
    TRAJECTORY_POS(6, /*pos*/ -3220, -1600, -1360),
    TRAJECTORY_POS(7, /*pos*/ -4180, -1020, -1040),
    TRAJECTORY_END(),
};

static struct ObjectHitbox sMantaRayHitbox = {
    /* interactType:      */ INTERACT_DAMAGE,
    /* downOffset:        */ 0,
    /* damageOrCoinValue: */ 0,
    /* health:            */ 3,
    /* numLootCoins:      */ 0,
    /* radius:            */ 210,
    /* height:            */ 60,
    /* hurtboxRadius:     */ 200,
    /* hurtboxHeight:     */ 50,
};

/**
 * Initializes the manta ray when spawned.
 */
void bhv_manta_ray_init(void) {
    struct Object *ringManager;
    ringManager = spawn_object(o, MODEL_NONE, bhvMantaRayRingManager);
    o->parentObj = ringManager;
    obj_set_hitbox(o, &sMantaRayHitbox);
    cur_obj_scale(2.5f);
}

static void manta_ray_move(void) {
    s16 animFrame = o->header.gfx.animInfo.animFrame;
    gCurrentObject->oPathedStartWaypoint = (struct Waypoint *) sMantaRayTraj;
    cur_obj_follow_path(0);
    o->oMantaTargetYaw   = o->oPathedTargetYaw;
    o->oMantaTargetPitch = o->oPathedTargetPitch;
    o->oForwardVel = 10.0f;

    o->oMoveAngleYaw = approach_s16_symmetric(o->oMoveAngleYaw, o->oMantaTargetYaw, 0x80);
    o->oMoveAnglePitch = approach_s16_symmetric(o->oMoveAnglePitch, o->oMantaTargetPitch, 0x80);

    // This causes the ray to tilt as it turns.
    if ((s16) o->oMantaTargetYaw != (s16) o->oMoveAngleYaw) {
        o->oMoveAngleRoll -= 0x5B;
        if (o->oMoveAngleRoll < -DEGREES(30)) {
            o->oMoveAngleRoll = -0x4000 / 3;
        }
    } else {
        o->oMoveAngleRoll += 0x5B;
        if (o->oMoveAngleRoll > DEGREES(30)) {
            o->oMoveAngleRoll = 0x4000 / 3;
        }
    }

    cur_obj_set_pos_via_transform();
    if (animFrame == 0) {
        cur_obj_play_sound_2(SOUND_GENERAL_MOVING_WATER);
    }
}

static void manta_ray_act_spawn_ring(void) {
    struct Object *ringManager = o->parentObj;
    struct Object *ring;

    if (o->oTimer == 300) {
        o->oTimer = 0;
    }

    if (o->oTimer == 0 || o->oTimer == 50 || o->oTimer == 150 || o->oTimer == 200 || o->oTimer == 250) {
        ring = spawn_object(o, MODEL_WATER_RING, bhvMantaRayWaterRing);

        ring->oFaceAngleYaw = o->oMoveAngleYaw;
        ring->oFaceAnglePitch = o->oMoveAnglePitch + 0x4000;

        ring->oPosX = o->oPosX + 200.0f * sins(o->oMoveAngleYaw + 0x8000);
        ring->oPosY = o->oPosY + 10.0f + 200.0f * sins(o->oMoveAnglePitch);
        ring->oPosZ = o->oPosZ + 200.0f * coss(o->oMoveAngleYaw + 0x8000);
        ring->oWaterRingIndex = ringManager->oWaterRingMgrNextRingIndex;

        ringManager->oWaterRingMgrNextRingIndex++;
        if (ringManager->oWaterRingMgrNextRingIndex > 10000) {
            ringManager->oWaterRingMgrNextRingIndex = 0;
        }
    }
}

/**
 * Behavior that occurs every frame.
 */
void bhv_manta_ray_loop(void) {
    switch (o->oAction) {
        case MANTA_ACT_SPAWN_RINGS:
            manta_ray_move();
            manta_ray_act_spawn_ring();

            // Spawn a star after collecting 5 rings.
            if (o->oWaterRingSpawnerRingsCollected == 5) {
                spawn_mist_particles();
                spawn_default_star(-3180.0f, -3600.0f, 120.0f);
                o->oAction = MANTA_ACT_NO_RINGS;
            }
            break;

        case MANTA_ACT_NO_RINGS:
            manta_ray_move();
            break;
    }

    if (o->oInteractStatus & INT_STATUS_INTERACTED) {
        o->oInteractStatus = 0;
    }
}
