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<?php |
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/** |
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* Adapted from: https://github.com/BinaryMoon/wp-toolbelt/tree/master/modules/avatars |
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* @see: https://www.binarymoon.co.uk/2020/08/pixel-avatars-a-privacy-first-gravatar-replacement/ |
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*/ |
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namespace GeminiLabs\SiteReviews\Modules; |
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class PixelAvatar |
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{ |
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const HEIGHT = 11; |
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const WIDTH = 11; |
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/** |
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* @var array |
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*/ |
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public $data; |
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/** |
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* @var string |
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*/ |
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public $hash; |
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/** |
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* @var int |
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*/ |
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public $hashIndex = 0; |
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/** |
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* @var array |
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*/ |
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public $pixels = [ |
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'palette' => [ |
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'all' => [0, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, 140, 150, 160, 170, 180, 190, 200, 210, 215, 220, 230, 240, 250, 260, 270, 280, 290, 300, 310, 320, 330, 340, 350], |
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'skin' => [60, 80, 100, 120, 140, 160, 180, 220, 240, 280, 300, 320, 340], |
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], |
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'face' => [ |
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[ |
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[0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], |
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[0, 0, 2, 1, 9, 1, 9, 1, 2, 0, 0], |
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[0, 0, 2, 1, 1, 1, 1, 1, 2, 0, 0], |
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[0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], |
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[0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], |
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[0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0], |
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[0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0], |
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], |
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[ |
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[0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], |
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[0, 0, 2, 1, 9, 1, 9, 1, 2, 0, 0], |
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[0, 0, 2, 1, 1, 1, 1, 1, 2, 0, 0], |
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[0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], |
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[0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], |
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[0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0], |
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[0, 0, 1, 0, 0, 2, 0, 0, 1, 0, 0], |
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[0, 1, 1, 0, 0, 0, 0, 0, 1, 1, 0], |
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], |
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[ |
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[0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], |
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[0, 0, 2, 1, 9, 1, 9, 1, 2, 0, 0], |
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[0, 0, 2, 1, 1, 1, 1, 1, 2, 0, 0], |
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[0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], |
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[0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0], |
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[0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0], |
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[0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0], |
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], |
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[ |
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[0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], |
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[0, 2, 1, 1, 9, 1, 9, 1, 1, 2, 0], |
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[0, 2, 1, 1, 1, 1, 1, 1, 1, 2, 0], |
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[0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0], |
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[0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], |
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[0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0], |
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[0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0], |
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], |
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[ |
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[0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], |
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[0, 0, 2, 1, 9, 1, 9, 1, 2, 0, 0], |
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[0, 0, 2, 1, 1, 1, 1, 1, 2, 0, 0], |
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[0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], |
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[0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], |
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[0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0], |
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[0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0], |
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], |
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[ |
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[0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], |
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[0, 0, 2, 1, 9, 1, 9, 1, 2, 0, 0], |
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[0, 0, 2, 1, 1, 1, 1, 1, 2, 0, 0], |
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[0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], |
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[0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], |
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[0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0], |
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[0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0], |
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[0, 1, 1, 0, 0, 0, 0, 0, 1, 1, 0], |
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], |
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[ |
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[0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], |
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[0, 0, 2, 1, 9, 1, 9, 1, 2, 0, 0], |
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[0, 0, 2, 1, 1, 1, 1, 1, 2, 0, 0], |
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[0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], |
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[0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], |
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[0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], |
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[0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0], |
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], |
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], |
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'mouth' => [ |
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[1, 1, 1], |
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[1, 1, 1], |
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[1, 1, 1], |
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[0, 1, 0], |
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[0, 1, 1], |
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[1, 1, 0], |
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], |
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'body' => [ |
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[ |
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[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], |
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[0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0], |
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[0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0], |
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], |
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[ |
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[0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0], |
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[0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0], |
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[0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0], |
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], |
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[ |
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[0, 0, 1, 1, 2, 2, 2, 1, 1, 0, 0], |
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[0, 0, 1, 1, 2, 2, 2, 1, 1, 0, 0], |
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[0, 0, 1, 1, 2, 2, 2, 1, 1, 0, 0], |
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], |
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[ |
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[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], |
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[0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0], |
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[0, 1, 1, 2, 1, 1, 1, 2, 1, 1, 0], |
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], |
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[ |
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[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], |
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[0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], |
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[0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0], |
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], |
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[ |
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[0, 1, 1, 0, 0, 0, 0, 0, 1, 1, 0], |
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[0, 0, 1, 1, 2, 2, 2, 1, 1, 0, 0], |
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[0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0], |
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], |
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[ |
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[0, 0, 0, 1, 2, 2, 2, 1, 0, 0, 0], |
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[0, 0, 1, 1, 2, 2, 2, 1, 1, 0, 0], |
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[0, 0, 1, 1, 1, 2, 1, 1, 1, 0, 0], |
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], |
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[ |
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[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], |
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[0, 0, 1, 2, 1, 2, 1, 2, 1, 0, 0], |
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[0, 0, 1, 2, 1, 2, 1, 2, 1, 0, 0], |
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], |
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[ |
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[0, 0, 0, 0, 2, 9, 2, 0, 0, 0, 0], |
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[0, 0, 1, 1, 1, 9, 1, 1, 1, 0, 0], |
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[0, 0, 1, 1, 1, 9, 1, 1, 1, 0, 0], |
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], |
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], |
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'hair' => [ |
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[ |
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[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], |
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], |
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[ |
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[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], |
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[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], |
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[0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], |
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], |
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[ |
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[0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0], |
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[0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0], |
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[0, 0, 0, 2, 2, 2, 2, 2, 0, 0, 0], |
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], |
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[ |
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[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], |
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[0, 0, 0, 2, 0, 0, 0, 2, 0, 0, 0], |
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[0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], |
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], |
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[ |
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[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], |
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[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], |
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[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], |
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[0, 0, 0, 2, 2, 0, 2, 2, 0, 0, 0], |
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], |
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[ |
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[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], |
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[0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0], |
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[0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], |
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[0, 0, 0, 2, 2, 0, 2, 2, 0, 0, 0], |
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], |
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[ |
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[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], |
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[0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0], |
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[0, 0, 0, 0, 2, 1, 2, 0, 0, 0, 0], |
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[0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0], |
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], |
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[ |
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[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], |
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[0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0], |
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[0, 0, 0, 0, 2, 2, 2, 0, 0, 0, 0], |
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], |
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[ |
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[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], |
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[0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0], |
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[0, 0, 0, 0, 2, 2, 2, 0, 0, 0, 0], |
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], |
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[ |
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[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], |
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[0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], |
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[0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], |
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[0, 0, 0, 2, 0, 0, 0, 2, 0, 0, 0], |
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], |
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[ |
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[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], |
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[0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0], |
216
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[0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], |
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[0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0], |
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[0, 0, 1, 1, 0, 0, 0, 1, 1, 0, 0], |
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], |
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[ |
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[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], |
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[0, 0, 0, 0, 2, 1, 2, 0, 0, 0, 0], |
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[0, 0, 0, 1, 2, 1, 2, 1, 0, 0, 0], |
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[0, 0, 0, 2, 2, 2, 2, 2, 0, 0, 0], |
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], |
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[ |
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[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], |
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[0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0], |
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[0, 0, 0, 0, 2, 2, 2, 1, 0, 0, 0], |
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[0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0], |
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], |
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[ |
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[0, 0, 0, 0, 2, 2, 2, 0, 0, 0, 0], |
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[0, 0, 0, 1, 2, 2, 2, 1, 0, 0, 0], |
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[0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], |
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], |
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[ |
238
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[0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0], |
239
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[0, 0, 1, 0, 1, 0, 1, 0, 1, 0, 0], |
240
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[0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], |
241
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], |
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[ |
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[0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0], |
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[0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0], |
245
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[0, 0, 0, 1, 2, 2, 2, 0, 0, 0, 0], |
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[0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0], |
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], |
248
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[ |
249
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[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], |
250
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[0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0], |
251
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[0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0], |
252
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], |
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[ |
254
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[0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], |
255
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[0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], |
256
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[0, 0, 2, 2, 2, 2, 2, 2, 2, 0, 0], |
257
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], |
258
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[ |
259
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[0, 0, 0, 8, 1, 1, 1, 0, 0, 0, 0], |
260
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[0, 0, 0, 1, 8, 1, 1, 1, 0, 0, 0], |
261
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[0, 0, 2, 2, 2, 2, 2, 2, 2, 0, 0], |
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], |
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[ |
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[0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], |
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[0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0], |
266
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[0, 1, 1, 1, 2, 2, 2, 1, 1, 1, 0], |
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[0, 1, 1, 2, 0, 0, 0, 2, 1, 1, 0], |
268
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[0, 1, 1, 0, 0, 0, 0, 0, 1, 1, 0], |
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[0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0], |
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], |
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[ |
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[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], |
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[0, 0, 0, 1, 1, 0, 1, 1, 0, 0, 0], |
274
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[0, 0, 1, 2, 2, 1, 2, 2, 1, 0, 0], |
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[0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0], |
276
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], |
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[ |
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[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], |
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[0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], |
280
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[0, 0, 1, 2, 2, 2, 2, 2, 1, 0, 0], |
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|
|
[0, 0, 1, 1, 0, 0, 0, 1, 1, 0, 0], |
282
|
|
|
[0, 0, 1, 1, 0, 0, 0, 1, 1, 0, 0], |
283
|
|
|
[0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0], |
284
|
|
|
], |
285
|
|
|
[ |
286
|
|
|
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], |
287
|
|
|
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], |
288
|
|
|
[0, 0, 0, 1, 2, 2, 2, 1, 0, 0, 0], |
289
|
|
|
], |
290
|
|
|
[ |
291
|
|
|
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], |
292
|
|
|
[0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0], |
293
|
|
|
[0, 0, 1, 1, 2, 2, 2, 1, 1, 0, 0], |
294
|
|
|
[0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0], |
295
|
|
|
], |
296
|
|
|
[ |
297
|
|
|
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], |
298
|
|
|
[0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0], |
299
|
|
|
[0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], |
300
|
|
|
[0, 0, 1, 2, 0, 0, 0, 2, 1, 0, 0], |
301
|
|
|
[0, 1, 1, 0, 0, 0, 0, 0, 1, 1, 0], |
302
|
|
|
[0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0], |
303
|
|
|
], |
304
|
|
|
[ |
305
|
|
|
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], |
306
|
|
|
[0, 0, 0, 1, 1, 0, 1, 1, 0, 0, 0], |
307
|
|
|
[0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0], |
308
|
|
|
[0, 0, 1, 1, 0, 0, 0, 1, 1, 0, 0], |
309
|
|
|
[0, 1, 1, 0, 0, 0, 0, 0, 1, 1, 0], |
310
|
|
|
[0, 1, 1, 0, 0, 0, 0, 0, 1, 1, 0], |
311
|
|
|
], |
312
|
|
|
], |
313
|
|
|
]; |
314
|
|
|
|
315
|
|
|
/** |
316
|
|
|
* @param string $hash |
317
|
|
|
* @return string |
318
|
|
|
*/ |
319
|
|
|
public function generate($hash) |
320
|
|
|
{ |
321
|
|
|
$this->data = $this->newData(); |
322
|
|
|
$this->hash = $hash; |
323
|
|
|
$this->hashIndex = 0; |
324
|
|
|
$this->addBody(); |
325
|
|
|
$this->addFace(); |
326
|
|
|
$this->addMouth(); |
327
|
|
|
$this->addHair(); |
328
|
|
|
return $this->draw(); |
329
|
|
|
} |
330
|
|
|
|
331
|
|
|
/** |
332
|
|
|
* @return void |
333
|
|
|
*/ |
334
|
|
|
protected function addBody() |
335
|
|
|
{ |
336
|
|
|
$color = $this->getColor(50, 45); |
337
|
|
|
$pixels = $this->getPixels('body'); |
338
|
|
|
$yOffset = 8; |
339
|
|
|
for ($y = 0; $y < static::HEIGHT - $yOffset; ++$y) { |
340
|
|
|
for ($x = 0; $x < static::WIDTH; ++$x) { |
341
|
|
|
$pixelColor = $this->setPixelColour($pixels[$y][$x], $this->data[$y + $yOffset][$x], $color); |
342
|
|
|
$this->data[$y + $yOffset][$x] = $pixelColor; |
343
|
|
|
} |
344
|
|
|
} |
345
|
|
|
} |
346
|
|
|
|
347
|
|
|
/** |
348
|
|
|
* @return void |
349
|
|
|
*/ |
350
|
|
|
protected function addFace() |
351
|
|
|
{ |
352
|
|
|
$color = $this->getColor(40, 65, 'skin'); |
353
|
|
|
$pixels = $this->getPixels('face'); |
354
|
|
|
$numPixels = count($pixels); |
355
|
|
|
$yOffset = 3; |
356
|
|
|
for ($y = 0; $y < $numPixels; ++$y) { |
357
|
|
|
for ($x = 0; $x < static::WIDTH; ++$x) { |
358
|
|
|
$pixelColor = $this->setPixelColour($pixels[$y][$x], $this->data[$y + $yOffset][$x], $color); |
359
|
|
|
$this->data[$y + $yOffset][$x] = $pixelColor; |
360
|
|
|
} |
361
|
|
|
} |
362
|
|
|
} |
363
|
|
|
|
364
|
|
|
/** |
365
|
|
|
* @return void |
366
|
|
|
*/ |
367
|
|
|
protected function addHair() |
368
|
|
|
{ |
369
|
|
|
$color = $this->getColor(70, 45); |
370
|
|
|
$pixels = $this->getPixels('hair'); |
371
|
|
|
$numPixels = count($pixels); |
372
|
|
|
for ($y = 0; $y < $numPixels; ++$y) { |
373
|
|
|
for ($x = 0; $x < static::WIDTH; ++$x) { |
374
|
|
|
$pixelColor = $this->setPixelColour($pixels[$y][$x], $this->data[$y][$x], $color); |
375
|
|
|
$this->data[$y][$x] = $pixelColor; |
376
|
|
|
} |
377
|
|
|
} |
378
|
|
|
} |
379
|
|
|
|
380
|
|
|
/** |
381
|
|
|
* @return void |
382
|
|
|
*/ |
383
|
|
|
protected function addMouth() |
384
|
|
|
{ |
385
|
|
|
$color = $this->getColor(60, 30); |
386
|
|
|
$pixels = $this->getPixels('mouth'); |
387
|
|
|
if (1 === $pixels[0]) { |
388
|
|
|
$this->data[6][4] = $color[0]; |
389
|
|
|
} |
390
|
|
|
if (1 === $pixels[1]) { |
391
|
|
|
$this->data[6][5] = $color[0]; |
392
|
|
|
} |
393
|
|
|
if (1 === $pixels[2]) { |
394
|
|
|
$this->data[6][6] = $color[0]; |
395
|
|
|
} |
396
|
|
|
} |
397
|
|
|
|
398
|
|
|
/** |
399
|
|
|
* @return string |
400
|
|
|
*/ |
401
|
|
|
protected function draw() |
402
|
|
|
{ |
403
|
|
|
$paths = []; |
404
|
|
|
$background = $this->getColor(85, 85); |
405
|
|
|
$commands = []; |
406
|
|
|
$commands[$background[0]] = sprintf('M0 0h%dv%dH0z', static::WIDTH, static::HEIGHT); |
407
|
|
|
for ($y = 0; $y < static::HEIGHT; ++$y) { |
408
|
|
|
for ($x = 0; $x < static::WIDTH; ++$x) { |
409
|
|
|
if ($fill = $this->data[$y][$x]) { |
410
|
|
|
if (!isset($commands[$fill])) { |
411
|
|
|
$commands[$fill] = ''; |
412
|
|
|
} |
413
|
|
|
$commands[$fill] .= sprintf('M%d %dh1v1H%dz', $x, $y, $x); |
414
|
|
|
} |
415
|
|
|
} |
416
|
|
|
} |
417
|
|
|
foreach ($commands as $fill => $d) { |
418
|
|
|
$paths[] = sprintf('<path fill="%s" d="%s"/>', $fill, $d); |
419
|
|
|
} |
420
|
|
|
return sprintf('<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 %d %d">%s</svg>', |
421
|
|
|
static::WIDTH, |
422
|
|
|
static::HEIGHT, |
423
|
|
|
implode('', $paths) |
424
|
|
|
); |
425
|
|
|
} |
426
|
|
|
|
427
|
|
|
/** |
428
|
|
|
* @param int $saturation |
429
|
|
|
* @param int $lightness |
430
|
|
|
* @param string $paletteKey |
431
|
|
|
* @return array |
432
|
|
|
* @see https://www.w3schools.com/colors/colors_hsl.asp |
433
|
|
|
*/ |
434
|
|
|
protected function getColor($saturation, $lightness, $paletteKey = 'all') |
435
|
|
|
{ |
436
|
|
|
$palette = $this->pixels['palette'][$paletteKey]; |
437
|
|
|
$index = $this->stringVal() % count($palette); |
438
|
|
|
$hue = $palette[$index]; |
439
|
|
|
return [ |
440
|
|
|
$this->hslToHex($hue, $saturation / 100, $lightness / 100), |
441
|
|
|
$this->hslToHex($hue, ($saturation + 10) / 100, ($lightness - 20) / 100), |
442
|
|
|
]; |
443
|
|
|
} |
444
|
|
|
|
445
|
|
|
/** |
446
|
|
|
* @param string $name |
447
|
|
|
* @return array |
448
|
|
|
*/ |
449
|
|
|
protected function getPixels($name) |
450
|
|
|
{ |
451
|
|
|
$index = $this->stringVal() % count($this->pixels[$name]); |
452
|
|
|
return $this->pixels[$name][$index]; |
453
|
|
|
} |
454
|
|
|
|
455
|
|
|
/** |
456
|
|
|
* @param float $hue |
457
|
|
|
* @param float $saturation |
458
|
|
|
* @param float $lightness |
459
|
|
|
* @return string |
460
|
|
|
*/ |
461
|
|
|
protected function hslToHex($hue, $saturation, $lightness) |
462
|
|
|
{ |
463
|
|
|
$hue = $hue / 360; |
464
|
|
|
if (0 == $saturation) { |
465
|
|
|
$red = $green = $blue = $lightness; // achromatic |
466
|
|
|
} else { |
467
|
|
|
if ($lightness < 0.5) { |
468
|
|
|
$v2 = $lightness * (1 + $saturation); |
469
|
|
|
} else { |
470
|
|
|
$v2 = ($lightness + $saturation) - ($lightness * $saturation); |
471
|
|
|
} |
472
|
|
|
$v1 = 2 * $lightness - $v2; |
473
|
|
|
$red = $this->hueToRgb($v1, $v2, $hue + (1 / 3)); |
474
|
|
|
$green = $this->hueToRgb($v1, $v2, $hue); |
475
|
|
|
$blue = $this->hueToRgb($v1, $v2, $hue - (1 / 3)); |
476
|
|
|
} |
477
|
|
|
$red = (int) round($red * 255); |
478
|
|
|
$green = (int) round($green * 255); |
479
|
|
|
$blue = (int) round($blue * 255); |
480
|
|
|
return '#'.str_pad(dechex(($red << 16) + ($green << 8) + $blue), 6, '0', STR_PAD_LEFT); |
481
|
|
|
} |
482
|
|
|
|
483
|
|
|
/** |
484
|
|
|
* @param float $v1 |
485
|
|
|
* @param float $v2 |
486
|
|
|
* @param float $vH |
487
|
|
|
* @return float |
488
|
|
|
*/ |
489
|
|
|
protected function hueToRgb($v1, $v2, $vH) |
490
|
|
|
{ |
491
|
|
|
if ($vH < 0) { |
492
|
|
|
++$vH; |
493
|
|
|
} |
494
|
|
|
if ($vH > 1) { |
495
|
|
|
--$vH; |
496
|
|
|
} |
497
|
|
|
if ($vH < (1 / 6)) { |
498
|
|
|
return $v1 + ($v2 - $v1) * 6 * $vH; |
499
|
|
|
} |
500
|
|
|
if ($vH < (1 / 2)) { |
501
|
|
|
return $v2; |
502
|
|
|
} |
503
|
|
|
if ($vH < (2 / 3)) { |
504
|
|
|
return $v1 + ($v2 - $v1) * ((2 / 3) - $vH) * 6; |
505
|
|
|
} |
506
|
|
|
return $v1; |
507
|
|
|
} |
508
|
|
|
|
509
|
|
|
/** |
510
|
|
|
* @return array |
511
|
|
|
*/ |
512
|
|
|
protected function newData() |
513
|
|
|
{ |
514
|
|
|
$data = []; |
515
|
|
|
for ($y = 0; $y < static::HEIGHT; ++$y) { |
516
|
|
|
$data[$y] = []; |
517
|
|
|
for ($x = 0; $x < static::WIDTH; ++$x) { |
518
|
|
|
$data[$y][$x] = null; |
519
|
|
|
} |
520
|
|
|
} |
521
|
|
|
return $data; |
522
|
|
|
} |
523
|
|
|
|
524
|
|
|
/** |
525
|
|
|
* @param int $pixel |
526
|
|
|
* @param string $current |
527
|
|
|
* @param array $palette |
528
|
|
|
* @return string |
529
|
|
|
*/ |
530
|
|
|
protected function setPixelColour($pixel, $current, $palette) |
531
|
|
|
{ |
532
|
|
|
$color = $current; |
533
|
|
|
switch ($pixel) { |
534
|
|
|
case 1: |
535
|
|
|
$color = $palette[0]; |
536
|
|
|
break; |
537
|
|
|
case 2: |
538
|
|
|
$color = $palette[1]; |
539
|
|
|
break; |
540
|
|
|
case 8: |
541
|
|
|
$color = '#fff'; |
542
|
|
|
break; |
543
|
|
|
case 9: |
544
|
|
|
$color = '#000'; |
545
|
|
|
break; |
546
|
|
|
} |
547
|
|
|
return $color; |
548
|
|
|
} |
549
|
|
|
|
550
|
|
|
/** |
551
|
|
|
* Get the value of the next character in the hash. |
552
|
|
|
* @return int |
553
|
|
|
*/ |
554
|
|
|
protected function stringVal() |
555
|
|
|
{ |
556
|
|
|
++$this->hashIndex; |
557
|
|
|
$this->hashIndex = $this->hashIndex % strlen($this->hash); |
558
|
|
|
return ord($this->hash[$this->hashIndex]) + (ord("\0") << 8); |
559
|
|
|
} |
560
|
|
|
} |
561
|
|
|
|