|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
declare(strict_types = 1); |
|
4
|
|
|
|
|
5
|
|
|
namespace ExtendedStrings\Strings; |
|
6
|
|
|
|
|
7
|
|
|
class Instrument implements InstrumentInterface |
|
8
|
|
|
{ |
|
9
|
|
|
private $strings; |
|
10
|
|
|
|
|
11
|
|
|
/** |
|
12
|
|
|
* Instrument constructor. |
|
13
|
|
|
* |
|
14
|
|
|
* @param InstrumentStringInterface[] $strings |
|
15
|
|
|
*/ |
|
16
|
|
|
public function __construct(array $strings) |
|
17
|
|
|
{ |
|
18
|
|
|
$this->strings = $strings; |
|
19
|
|
|
} |
|
20
|
|
|
|
|
21
|
|
|
/** |
|
22
|
|
|
* @param string[] $stringNames |
|
23
|
|
|
* @param float $length |
|
24
|
|
|
* |
|
25
|
|
|
* @return self |
|
26
|
|
|
*/ |
|
27
|
|
|
public static function fromNames(array $stringNames, float $length = 500.0): self |
|
28
|
|
|
{ |
|
29
|
|
|
$strings = []; |
|
30
|
|
|
$number = 1; |
|
31
|
|
|
foreach ($stringNames as $name) { |
|
32
|
|
|
$frequency = Note::fromName($name)->getFrequency(); |
|
33
|
|
|
$strings[] = new InstrumentString($frequency, $length, $number++); |
|
34
|
|
|
} |
|
35
|
|
|
|
|
36
|
|
|
return new self($strings); |
|
37
|
|
|
} |
|
38
|
|
|
|
|
39
|
|
|
/** |
|
40
|
|
|
* @param string $preset |
|
41
|
|
|
* |
|
42
|
|
|
* @return self |
|
43
|
|
|
*/ |
|
44
|
|
|
public static function fromPreset(string $preset): self |
|
45
|
|
|
{ |
|
46
|
|
|
switch ($preset) { |
|
47
|
|
|
case 'violin': |
|
48
|
|
|
$names = ['E5', 'A4', 'D4', 'G3']; |
|
49
|
|
|
$length = 325; |
|
50
|
|
|
break; |
|
51
|
|
|
|
|
52
|
|
|
case 'viola': |
|
53
|
|
|
$names = ['A4', 'D3', 'G3', 'C3']; |
|
54
|
|
|
$length = 410; |
|
55
|
|
|
break; |
|
56
|
|
|
|
|
57
|
|
|
case 'cello': |
|
58
|
|
|
$names = ['A3', 'D2', 'G2', 'C2']; |
|
59
|
|
|
$length = 690; |
|
60
|
|
|
break; |
|
61
|
|
|
|
|
62
|
|
|
case 'guitar': |
|
63
|
|
|
$names = ['E4', 'B3', 'G3', 'D3', 'A2', 'E2']; |
|
64
|
|
|
$length = 650; |
|
65
|
|
|
break; |
|
66
|
|
|
|
|
67
|
|
|
case 'double bass': |
|
68
|
|
|
$names = ['E1', 'A1', 'D2', 'G2']; |
|
69
|
|
|
$length = 1140; |
|
70
|
|
|
break; |
|
71
|
|
|
|
|
72
|
|
|
default: |
|
73
|
|
|
throw new \InvalidArgumentException(sprintf('Preset not found: %s', $preset)); |
|
74
|
|
|
} |
|
75
|
|
|
|
|
76
|
|
|
return self::fromNames($names, $length); |
|
77
|
|
|
} |
|
78
|
|
|
|
|
79
|
|
|
/** |
|
80
|
|
|
* {@inheritdoc} |
|
81
|
|
|
*/ |
|
82
|
|
|
public function getStrings(): array |
|
83
|
|
|
{ |
|
84
|
|
|
return $this->strings; |
|
85
|
|
|
} |
|
86
|
|
|
} |
|
87
|
|
|
|
extended-strings /
strings
