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1 |
1 | <?php |
2 | /** |
3 | * This program is free software: you can redistribute it and/or modify |
4 | * it under the terms of the GNU General Public License as published by |
5 | * the Free Software Foundation, either version 3 of the License, or |
6 | * (at your option) any later version. |
7 | * |
8 | * This program is distributed in the hope that it will be useful, |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
11 | * GNU General Public License for more details. |
12 | * |
13 | * You should have received a copy of the GNU General Public License |
14 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
15 | */ |
16 | |
17 | namespace ORES; |
18 | |
19 | /** |
20 | * Represents a range defined by two values: min and max |
21 | * |
22 | * @package ORES |
23 | */ |
24 | class Range { |
25 | |
26 | /** |
27 | * @var float |
28 | */ |
29 | protected $min; |
30 | |
31 | /** |
32 | * @var float |
33 | */ |
34 | protected $max; |
35 | |
36 | /** |
37 | * @param float $min |
38 | * @param float $max |
39 | */ |
40 | public function __construct( $min, $max ) { |
41 | if ( $min > $max ) { |
42 | throw new \DomainException( '$min must be smaller than or equal to $max' ); |
43 | } |
44 | $this->min = $min; |
45 | $this->max = $max; |
46 | } |
47 | |
48 | /** |
49 | * @return float |
50 | */ |
51 | public function getMin() { |
52 | return $this->min; |
53 | } |
54 | |
55 | /** |
56 | * @return float |
57 | */ |
58 | public function getMax() { |
59 | return $this->max; |
60 | } |
61 | |
62 | /** |
63 | * Check if the current range overlaps with or touches the given range. |
64 | * |
65 | * @param Range $other |
66 | * @return bool |
67 | */ |
68 | public function overlaps( Range $other ) { |
69 | return max( $this->min, $other->min ) <= min( $this->max, $other->max ); |
70 | } |
71 | |
72 | /** |
73 | * Expands the current range to include the given range. |
74 | * |
75 | * @param Range $other |
76 | */ |
77 | public function combineWith( Range $other ) { |
78 | $this->min = min( $this->min, $other->min ); |
79 | $this->max = max( $this->max, $other->max ); |
80 | } |
81 | |
82 | } |