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xwiz/gradient_random.php

Last active August 15, 2021 11:33
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  1. xwiz renamed this gist Aug 15, 2021. 1 changed file with 0 additions and 0 deletions.
    0 gistfile1.txt → gradient_random.php
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  2. xwiz created this gist Aug 15, 2021.
    24 changes: 24 additions & 0 deletions gistfile1.txt
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    Original file line number Diff line number Diff line change
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    /**
    * @param mixed $color1 The first hex/rgb array gradient color
    * @param mixed $color2 The second hex/rgb array gradient color
    * @param mixed $weight Weight of color 1 against color 2. Should be a float between 0 and 1
    * @return string A hex color mix of the two gradient colors based on weight
    */
    function pick_hex($color1, $color2, $weight) {
    $w1 = $weight;
    $w2 = 1 - $w1;
    if (is_string($color1)) {
    list($r1, $g1, $b1) = sscanf($color1, "#%02x%02x%02x");
    } elseif (is_array($color1)) {
    $r1 = $color1[0]; $g1 = $color1[1]; $b1 = $color1[2];
    }
    if (is_string($color2)) {
    list($r2, $g2, $b2) = sscanf($color2, "#%02x%02x%02x");
    } elseif (is_array($color2)) {
    $r2 = $color2[0]; $g2 = $color2[1]; $b2 = $color2[2];
    }
    $rgb = [round($r1 * $w1 + $r2 * $w2),
    round($g1 * $w1 + $g2 * $w2),
    round($b1 * $w1 + $b2 * $w2)];
    return sprintf("#%02x%02x%02x", $rgb[0], $rgb[1], $rgb[2]);
    }