<?php

require_once "core/geometry/point.php";

class Rectangle
{
    public $left, $top, $width, $height;

    function __construct($left = 0, $top = 0, $width = 0, $height = 0) 
    {
        $this->left   = $left;
        $this->top    = $top;
        $this->width  = $width;
        $this->height = $height;       
    }

    function __get($name)
    {
        switch ($name) {
           case 'right':  return $this->left + $this->width;
           case 'bottom': return $this->top + $this->height;
        }
    }

    function __set($name, $value)
    {
        switch ($name) {
           case 'right':  $this->width = $value - $this->left;
           case 'bottom': $this->height = $value - $this->top;
        }
    }

    /**
     * Смещает прямоугольник на заданное положение
     */
    function addPoint(Point $point)
    {
        $result = clone $this;
        $result->left += $point->left;
        $result->top += $point->top;
        return $result;
    }

    /**
     * Координаты точки при выравнивании прямоугольника относительно текущего
     */
    function alignment(Rectangle $base)
    {
        return new Point((($base->left +  $base->right) - ($this->left + $this->right)) / 2, $base->bottom - $this->height);
    }
}

?>