pocketmine\math\Vector3::floor PHP Method

    public function floor()
    {
        return new Vector3((int) floor($this->x), (int) floor($this->y), (int) floor($this->z));
    }

 public function __construct(Level $level, Vector3 $start, Vector3 $direction, $yOffset = 0, $maxDistance = 0)
 {
     $this->level = $level;
     $this->maxDistance = (int) $maxDistance;
     $this->blockQueue = new \SplFixedArray(3);
     $startClone = new Vector3($start->x, $start->y, $start->z);
     $startClone->y += $yOffset;
     $this->currentDistance = 0;
     $mainDirection = 0;
     $secondDirection = 0;
     $thirdDirection = 0;
     $mainPosition = 0;
     $secondPosition = 0;
     $thirdPosition = 0;
     $pos = new Vector3($startClone->x, $startClone->y, $startClone->z);
     $startBlock = $this->level->getBlock($pos->floor());
     if ($this->getXLength($direction) > $mainDirection) {
         $this->mainFace = $this->getXFace($direction);
         $mainDirection = $this->getXLength($direction);
         $mainPosition = $this->getXPosition($direction, $startClone, $startBlock);
         $this->secondFace = $this->getYFace($direction);
         $secondDirection = $this->getYLength($direction);
         $secondPosition = $this->getYPosition($direction, $startClone, $startBlock);
         $this->thirdFace = $this->getZFace($direction);
         $thirdDirection = $this->getZLength($direction);
         $thirdPosition = $this->getZPosition($direction, $startClone, $startBlock);
     }
     if ($this->getYLength($direction) > $mainDirection) {
         $this->mainFace = $this->getYFace($direction);
         $mainDirection = $this->getYLength($direction);
         $mainPosition = $this->getYPosition($direction, $startClone, $startBlock);
         $this->secondFace = $this->getZFace($direction);
         $secondDirection = $this->getZLength($direction);
         $secondPosition = $this->getZPosition($direction, $startClone, $startBlock);
         $this->thirdFace = $this->getXFace($direction);
         $thirdDirection = $this->getXLength($direction);
         $thirdPosition = $this->getXPosition($direction, $startClone, $startBlock);
     }
     if ($this->getZLength($direction) > $mainDirection) {
         $this->mainFace = $this->getZFace($direction);
         $mainDirection = $this->getZLength($direction);
         $mainPosition = $this->getZPosition($direction, $startClone, $startBlock);
         $this->secondFace = $this->getXFace($direction);
         $secondDirection = $this->getXLength($direction);
         $secondPosition = $this->getXPosition($direction, $startClone, $startBlock);
         $this->thirdFace = $this->getYFace($direction);
         $thirdDirection = $this->getYLength($direction);
         $thirdPosition = $this->getYPosition($direction, $startClone, $startBlock);
     }
     $d = $mainPosition / $mainDirection;
     $secondd = $secondPosition - $secondDirection * $d;
     $thirdd = $thirdPosition - $thirdDirection * $d;
     $this->secondError = floor($secondd * self::$gridSize);
     $this->secondStep = round($secondDirection / $mainDirection * self::$gridSize);
     $this->thirdError = floor($thirdd * self::$gridSize);
     $this->thirdStep = round($thirdDirection / $mainDirection * self::$gridSize);
     if ($this->secondError + $this->secondStep <= 0) {
         $this->secondError = -$this->secondStep + 1;
     }
     if ($this->thirdError + $this->thirdStep <= 0) {
         $this->thirdError = -$this->thirdStep + 1;
     }
     $lastBlock = $startBlock->getSide(Vector3::getOppositeSide($this->mainFace));
     if ($this->secondError < 0) {
         $this->secondError += self::$gridSize;
         $lastBlock = $lastBlock->getSide(Vector3::getOppositeSide($this->secondFace));
     }
     if ($this->thirdError < 0) {
         $this->thirdError += self::$gridSize;
         $lastBlock = $lastBlock->getSide(Vector3::getOppositeSide($this->thirdFace));
     }
     $this->secondError -= self::$gridSize;
     $this->thirdError -= self::$gridSize;
     $this->blockQueue[0] = $lastBlock;
     $this->currentBlock = -1;
     $this->scan();
     $startBlockFound = false;
     for ($cnt = $this->currentBlock; $cnt >= 0; --$cnt) {
         if ($this->blockEquals($this->blockQueue[$cnt], $startBlock)) {
             $this->currentBlock = $cnt;
             $startBlockFound = true;
             break;
         }
     }
     if (!$startBlockFound) {
         throw new \InvalidStateException("Start block missed in BlockIterator");
     }
     $this->maxDistanceInt = round($maxDistance / (sqrt($mainDirection ** 2 + $secondDirection ** 2 + $thirdDirection ** 2) / $mainDirection));
 }