1: <?php
 2: namespace NGS;
 3: 
 4: use NGS\Location;
 5: use NGS\Converter\PrimitiveConverter;
 6: 
 7: class Point extends Location
 8: {
 9:     public function __construct($x=0, $y=0)
10:     {
11:         if (is_string($x) && strpos($x, ',')) {
12:             $parts = explode(',', $x);
13:             if (count($parts) !== 2) {
14:                 throw new \InvalidArgumentException('Cannot construct point from invalid format: "'.$x.'"');
15:             }
16:             if (filter_var($parts[0], FILTER_VALIDATE_INT) === false
17:                 || filter_var($parts[1], FILTER_VALIDATE_INT) === false) {
18:                 throw new \InvalidArgumentException('Cannot construct point from invalid format: "'.$x.'"');
19:             }
20:             $this->setX($parts[0]);
21:             $this->setY($parts[1]);
22:         } else {
23:             parent::__construct($x, $y);
24:         }
25:     }
26: 
27:     /**
28:      * Constructs array of Points from array of valid constructor arguments
29:      *
30:      * @param array $items
31:      * @return array
32:      * @throws \InvalidArgumentException
33:      */
34:     public static function toArray(array $items, $allowNullValues=false)
35:     {
36:         $results = array();
37:         try {
38:             foreach ($items as $key => $val) {
39:                 if ($allowNullValues && $val===null) {
40:                     $results[] = null;
41:                 } elseif ($val === null) {
42:                     throw new \InvalidArgumentException('Null value found in provided array');
43:                 } elseif (!$val instanceof \NGS\Point) {
44:                     $results[] = new \NGS\Point($val);
45:                 } else {
46:                     $results[] = $val;
47:                 }
48:             }
49:         }
50:         catch(\Exception $e) {
51:             throw new \InvalidArgumentException('Element at index '.$key.' could not be converted to Location: '.$e->getMessage(), 42, $e);
52:         }
53:         return $results;
54:     }
55: 
56:     public function setX($value)
57:     {
58:         $this->x = PrimitiveConverter::toInteger($value);
59:     }
60: 
61:     public function setY($value)
62:     {
63:         $this->y = PrimitiveConverter::toInteger($value);
64:     }
65: 
66:     public function __toString()
67:     {
68:         return "{$this->x},{$this->y}";
69:     }
70: }
71: