pocketmine\entity\FlyingAnimal::onUpdate PHP Метод

    public function onUpdate($currentTick)
    {
        if ($this->closed !== false) {
            return false;
        }
        if ($this->willMove(100)) {
            if (++$this->switchDirectionTicker === $this->switchDirectionTicks) {
                $this->switchDirectionTicker = 0;
                if (mt_rand(0, 100) < 50) {
                    $this->flyDirection = null;
                }
            }
            $this->lastUpdate = $currentTick;
            $this->timings->startTiming();
            if ($this->isAlive()) {
                if ($this->y > $this->highestY and $this->flyDirection !== null) {
                    $this->flyDirection->y = -0.5;
                }
                $inAir = !$this->isInsideOfSolid() and !$this->isInsideOfWater();
                if (!$inAir) {
                    $this->flyDirection = null;
                }
                if ($this->flyDirection instanceof Vector3) {
                    //var_dump($this->flyDirection);
                    $this->setMotion($this->flyDirection->multiply($this->flySpeed));
                } else {
                    $this->flyDirection = $this->generateRandomDirection();
                    $this->flySpeed = mt_rand(50, 100) / 500;
                    $this->setMotion($this->flyDirection);
                }
                //$expectedPos = new Vector3($this->x + $this->motionX, $this->y + $this->motionY, $this->z + $this->motionZ);
                //$motion = $this->flyDirection->multiply($this->flySpeed);
                $this->move($this->motionX, $this->motionY, $this->motionZ);
                $this->updateMovement();
                //$this->getLevel()->addEntityMotion($this->chunk->getX(), $this->chunk->getZ(), $this->getId(), $motion->x, $motion->y, $motion->z);
                //echo "EID = {$this->getId()}, motionX = $this->motionX, motionY = $this->motionY, motionZ = $this->motionZ\n";
                /*
                
                                if($expectedPos->distanceSquared($this) > 0){
                                    $this->flyDirection = $this->generateRandomDirection();
                                    $this->flySpeed = mt_rand(50, 100) / 500;
                                }
                
                                $friction = 1 - $this->drag;
                
                                $this->motionX *= $friction;
                                $this->motionY *= 1 - $this->drag;
                                $this->motionZ *= $friction;
                */
                $f = sqrt($this->motionX ** 2 + $this->motionZ ** 2);
                $this->yaw = -atan2($this->motionX, $this->motionZ) * 180 / M_PI;
                $this->pitch = -atan2($f, $this->motionY) * 180 / M_PI;
                if ($this->onGround and $this->flyDirection instanceof Vector3) {
                    $this->flyDirection->y *= -1;
                }
            }
        }
        parent::onUpdate($currentTick);
        //parent::entityBaseTick();
        $this->timings->stopTiming();
        return !$this->onGround or abs($this->motionX) > 1.0E-5 or abs($this->motionY) > 1.0E-5 or abs($this->motionZ) > 1.0E-5;
    }

 public function onUpdate($currentTick)
 {
     if ($this->age > 20 * 60 * 10) {
         $this->kill();
     }
     return parent::onUpdate($currentTick);
 }