| 1 | <?php |
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| 10 | class Rgb implements Color |
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| 11 | { |
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| 12 | private int $red = 0; |
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| 13 | private int $green = 0; |
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| 14 | private int $blue = 0; |
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| 15 | |||
| 16 | public function __construct(int $red = null, int $green = null, int $blue = null) |
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| 17 | { |
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| 18 | if ($red) { |
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| 19 | $this->setRed($red); |
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| 20 | } |
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| 21 | |||
| 22 | if ($green) { |
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| 23 | $this->setGreen($green); |
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| 24 | } |
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| 25 | |||
| 26 | if ($blue) { |
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| 27 | 13 | $this->setBlue($blue); |
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| 28 | } |
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| 29 | 13 | } |
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| 30 | 13 | ||
| 31 | 13 | public function setRed(int $red): void |
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| 32 | 13 | { |
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| 33 | $this->isValid($red); |
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| 34 | 13 | $this->red = $red; |
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| 35 | } |
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| 36 | 13 | ||
| 37 | 13 | public function setGreen(int $green): void |
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| 38 | 13 | { |
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| 39 | $this->isValid($green); |
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| 40 | 13 | $this->green = $green; |
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| 41 | } |
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| 42 | 13 | ||
| 43 | 13 | public function setBlue(int $blue): void |
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| 44 | 13 | { |
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| 45 | $this->isValid($blue); |
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| 46 | 13 | $this->blue = $blue; |
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| 47 | } |
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| 48 | 13 | ||
| 49 | 13 | public function toString(): string |
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| 50 | 13 | { |
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| 51 | return sprintf('rgb(%s, %s, %s)', $this->red, $this->green, $this->blue); |
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| 52 | 7 | } |
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| 53 | |||
| 54 | 7 | private function isValid(int $value): void |
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| 55 | { |
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| 56 | if ($value < 0 || $value > 255 ) { |
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| 57 | 13 | throw new OutOfRangeException('Value out of range (0-255).'); |
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| 58 | } |
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| 59 | 13 | } |
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| 60 | } |
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| 61 |