pocketmine\math\AxisAlignedBB::calculateYOffset PHP Метод

    public function calculateYOffset(AxisAlignedBB $bb, $y)
    {
        if ($bb->maxX <= $this->minX or $bb->minX >= $this->maxX) {
            return $y;
        }
        if ($bb->maxZ <= $this->minZ or $bb->minZ >= $this->maxZ) {
            return $y;
        }
        if ($y > 0 and $bb->maxY <= $this->minY) {
            $y1 = $this->minY - $bb->maxY;
            if ($y1 < $y) {
                $y = $y1;
            }
        }
        if ($y < 0 and $bb->minY >= $this->maxY) {
            $y2 = $this->maxY - $bb->minY;
            if ($y2 > $y) {
                $y = $y2;
            }
        }
        return $y;
    }