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Edit File: PixelAvatar.php

<?php /** * Adapted from: https://github.com/BinaryMoon/wp-toolbelt/tree/master/modules/avatars. * * @see: https://www.binarymoon.co.uk/2020/08/pixel-avatars-a-privacy-first-gravatar-replacement/ */ namespace GeminiLabs\SiteReviews\Modules\Avatars; use GeminiLabs\Spatie\Color\Hsl; class PixelAvatar extends AbstractSvgAvatar { public const HEIGHT = 11; public const WIDTH = 11; public array $data = []; public string $hash = ''; public int $hashIndex = 0; public array $pixels = [ 'palette' => [ '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], 'skin' => [60, 80, 100, 120, 140, 160, 180, 220, 240, 280, 300, 320, 340], ], 'face' => [ [ [0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], [0, 0, 2, 1, 9, 1, 9, 1, 2, 0, 0], [0, 0, 2, 1, 1, 1, 1, 1, 2, 0, 0], [0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], [0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], [0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0], [0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0], ], [ [0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], [0, 0, 2, 1, 9, 1, 9, 1, 2, 0, 0], [0, 0, 2, 1, 1, 1, 1, 1, 2, 0, 0], [0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], [0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], [0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0], [0, 0, 1, 0, 0, 2, 0, 0, 1, 0, 0], [0, 1, 1, 0, 0, 0, 0, 0, 1, 1, 0], ], [ [0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], [0, 0, 2, 1, 9, 1, 9, 1, 2, 0, 0], [0, 0, 2, 1, 1, 1, 1, 1, 2, 0, 0], [0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], [0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0], [0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0], [0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0], ], [ [0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], [0, 2, 1, 1, 9, 1, 9, 1, 1, 2, 0], [0, 2, 1, 1, 1, 1, 1, 1, 1, 2, 0], [0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0], [0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], [0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0], [0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0], ], [ [0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], [0, 0, 2, 1, 9, 1, 9, 1, 2, 0, 0], [0, 0, 2, 1, 1, 1, 1, 1, 2, 0, 0], [0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], [0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], [0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0], [0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0], ], [ [0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], [0, 0, 2, 1, 9, 1, 9, 1, 2, 0, 0], [0, 0, 2, 1, 1, 1, 1, 1, 2, 0, 0], [0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], [0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], [0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0], [0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0], [0, 1, 1, 0, 0, 0, 0, 0, 1, 1, 0], ], [ [0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], [0, 0, 2, 1, 9, 1, 9, 1, 2, 0, 0], [0, 0, 2, 1, 1, 1, 1, 1, 2, 0, 0], [0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], [0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], [0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], [0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0], ], ], 'mouth' => [ [1, 1, 1], [1, 1, 1], [1, 1, 1], [0, 1, 0], [0, 1, 1], [1, 1, 0], ], 'body' => [ [ [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], [0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0], [0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0], ], [ [0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0], [0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0], [0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0], ], [ [0, 0, 1, 1, 2, 2, 2, 1, 1, 0, 0], [0, 0, 1, 1, 2, 2, 2, 1, 1, 0, 0], [0, 0, 1, 1, 2, 2, 2, 1, 1, 0, 0], ], [ [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], [0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0], [0, 1, 1, 2, 1, 1, 1, 2, 1, 1, 0], ], [ [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], [0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], [0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0], ], [ [0, 1, 1, 0, 0, 0, 0, 0, 1, 1, 0], [0, 0, 1, 1, 2, 2, 2, 1, 1, 0, 0], [0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0], ], [ [0, 0, 0, 1, 2, 2, 2, 1, 0, 0, 0], [0, 0, 1, 1, 2, 2, 2, 1, 1, 0, 0], [0, 0, 1, 1, 1, 2, 1, 1, 1, 0, 0], ], [ [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], [0, 0, 1, 2, 1, 2, 1, 2, 1, 0, 0], [0, 0, 1, 2, 1, 2, 1, 2, 1, 0, 0], ], [ [0, 0, 0, 0, 2, 9, 2, 0, 0, 0, 0], [0, 0, 1, 1, 1, 9, 1, 1, 1, 0, 0], [0, 0, 1, 1, 1, 9, 1, 1, 1, 0, 0], ], ], 'hair' => [ [ [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], ], [ [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], [0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], ], [ [0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0], [0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0], [0, 0, 0, 2, 2, 2, 2, 2, 0, 0, 0], ], [ [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], [0, 0, 0, 2, 0, 0, 0, 2, 0, 0, 0], [0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], ], [ [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], [0, 0, 0, 2, 2, 0, 2, 2, 0, 0, 0], ], [ [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], [0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0], [0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], [0, 0, 0, 2, 2, 0, 2, 2, 0, 0, 0], ], [ [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], [0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0], [0, 0, 0, 0, 2, 1, 2, 0, 0, 0, 0], [0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0], ], [ [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], [0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0], [0, 0, 0, 0, 2, 2, 2, 0, 0, 0, 0], ], [ [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], [0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0], [0, 0, 0, 0, 2, 2, 2, 0, 0, 0, 0], ], [ [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], [0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], [0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], [0, 0, 0, 2, 0, 0, 0, 2, 0, 0, 0], ], [ [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], [0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0], [0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], [0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0], [0, 0, 1, 1, 0, 0, 0, 1, 1, 0, 0], ], [ [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], [0, 0, 0, 0, 2, 1, 2, 0, 0, 0, 0], [0, 0, 0, 1, 2, 1, 2, 1, 0, 0, 0], [0, 0, 0, 2, 2, 2, 2, 2, 0, 0, 0], ], [ [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], [0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0], [0, 0, 0, 0, 2, 2, 2, 1, 0, 0, 0], [0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0], ], [ [0, 0, 0, 0, 2, 2, 2, 0, 0, 0, 0], [0, 0, 0, 1, 2, 2, 2, 1, 0, 0, 0], [0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], ], [ [0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0], [0, 0, 1, 0, 1, 0, 1, 0, 1, 0, 0], [0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], ], [ [0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0], [0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0], [0, 0, 0, 1, 2, 2, 2, 0, 0, 0, 0], [0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0], ], [ [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], [0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0], [0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0], ], [ [0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], [0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], [0, 0, 2, 2, 2, 2, 2, 2, 2, 0, 0], ], [ [0, 0, 0, 8, 1, 1, 1, 0, 0, 0, 0], [0, 0, 0, 1, 8, 1, 1, 1, 0, 0, 0], [0, 0, 2, 2, 2, 2, 2, 2, 2, 0, 0], ], [ [0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], [0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0], [0, 1, 1, 1, 2, 2, 2, 1, 1, 1, 0], [0, 1, 1, 2, 0, 0, 0, 2, 1, 1, 0], [0, 1, 1, 0, 0, 0, 0, 0, 1, 1, 0], [0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0], ], [ [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], [0, 0, 0, 1, 1, 0, 1, 1, 0, 0, 0], [0, 0, 1, 2, 2, 1, 2, 2, 1, 0, 0], [0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0], ], [ [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], [0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], [0, 0, 1, 2, 2, 2, 2, 2, 1, 0, 0], [0, 0, 1, 1, 0, 0, 0, 1, 1, 0, 0], [0, 0, 1, 1, 0, 0, 0, 1, 1, 0, 0], [0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0], ], [ [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], [0, 0, 0, 1, 2, 2, 2, 1, 0, 0, 0], ], [ [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], [0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0], [0, 0, 1, 1, 2, 2, 2, 1, 1, 0, 0], [0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0], ], [ [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], [0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0], [0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0], [0, 0, 1, 2, 0, 0, 0, 2, 1, 0, 0], [0, 1, 1, 0, 0, 0, 0, 0, 1, 1, 0], [0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0], ], [ [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], [0, 0, 0, 1, 1, 0, 1, 1, 0, 0, 0], [0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0], [0, 0, 1, 1, 0, 0, 0, 1, 1, 0, 0], [0, 1, 1, 0, 0, 0, 0, 0, 1, 1, 0], [0, 1, 1, 0, 0, 0, 0, 0, 1, 1, 0], ], ], ]; public function generate(string $from): string { $this->data = $this->newData(); $this->hash = $this->filename($from); $this->hashIndex = 0; $this->addBody(); $this->addFace(); $this->addMouth(); $this->addHair(); return $this->draw(); } protected function addBody(): void { $color = $this->getColor(50, 45); $pixels = $this->getPixels('body'); $yOffset = 8; for ($y = 0; $y < static::HEIGHT - $yOffset; ++$y) { for ($x = 0; $x < static::WIDTH; ++$x) { $pixelColor = $this->setPixelColour($pixels[$y][$x], $this->data[$y + $yOffset][$x], $color); $this->data[$y + $yOffset][$x] = $pixelColor; } } } protected function addFace(): void { $color = $this->getColor(40, 65, 'skin'); $pixels = $this->getPixels('face'); $numPixels = count($pixels); $yOffset = 3; for ($y = 0; $y < $numPixels; ++$y) { for ($x = 0; $x < static::WIDTH; ++$x) { $pixelColor = $this->setPixelColour($pixels[$y][$x], $this->data[$y + $yOffset][$x], $color); $this->data[$y + $yOffset][$x] = $pixelColor; } } } protected function addHair(): void { $color = $this->getColor(70, 45); $pixels = $this->getPixels('hair'); $numPixels = count($pixels); for ($y = 0; $y < $numPixels; ++$y) { for ($x = 0; $x < static::WIDTH; ++$x) { $pixelColor = $this->setPixelColour($pixels[$y][$x], $this->data[$y][$x], $color); $this->data[$y][$x] = $pixelColor; } } } protected function addMouth(): void { $color = $this->getColor(60, 30); $pixels = $this->getPixels('mouth'); if (1 === $pixels[0]) { $this->data[6][4] = $color[0]; } if (1 === $pixels[1]) { $this->data[6][5] = $color[0]; } if (1 === $pixels[2]) { $this->data[6][6] = $color[0]; } } protected function draw(): string { $paths = []; $background = $this->getColor(85, 85); $commands = []; $commands[$background[0]] = sprintf('M0 0h%dv%dH0z', static::WIDTH, static::HEIGHT); for ($y = 0; $y < static::HEIGHT; ++$y) { for ($x = 0; $x < static::WIDTH; ++$x) { if ($fill = $this->data[$y][$x]) { $commands[$fill] = $commands[$fill] ?? ''; $commands[$fill] .= sprintf('M%d %dh1v1H%dz', $x, $y, $x); } } } foreach ($commands as $fill => $d) { $paths[] = sprintf('<path fill="%s" d="%s"/>', $fill, $d); } return sprintf('<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 %d %d">%s</svg>', static::WIDTH, static::HEIGHT, implode('', $paths) ); } protected function filename(string $from): string { $hash = md5(strtolower(trim($from))); $hash = substr($hash, 0, 15); return $hash; } protected function getColor(int $saturation, int $lightness, string $paletteKey = 'all'): array { $palette = $this->pixels['palette'][$paletteKey]; $index = $this->indexVal() % count($palette); $hue = $palette[$index]; return [ (string) (new Hsl($hue, $saturation, $lightness))->toHex(), (string) (new Hsl($hue, ($saturation + 10), ($lightness - 20)))->toHex(), ]; } protected function getPixels(string $name): array { $index = $this->indexVal() % count($this->pixels[$name]); return $this->pixels[$name][$index]; } /** * Get the value of the next character in the hash. */ protected function indexVal(): int { ++$this->hashIndex; $this->hashIndex = $this->hashIndex % strlen($this->hash); return ord($this->hash[$this->hashIndex]) + (ord("\0") << 8); } protected function newData(): array { $data = []; for ($y = 0; $y < static::HEIGHT; ++$y) { $data[$y] = []; for ($x = 0; $x < static::WIDTH; ++$x) { $data[$y][$x] = null; } } return $data; } protected function setPixelColour(int $pixel, ?string $current, array $palette): string { $color = (string) $current; switch ($pixel) { case 1: $color = $palette[0]; break; case 2: $color = $palette[1]; break; case 8: $color = '#fff'; break; case 9: $color = '#000'; break; } return $color; } }