58 lines
1.2 KiB
PHP
58 lines
1.2 KiB
PHP
<?php
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namespace ManiaControl\Utils;
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/**
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* Utility Class offering Methods to convert and use ManiaPlanet Colors
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*
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* @author ManiaControl Team <mail@maniacontrol.com>
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* @copyright 2014 ManiaControl Team
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* @license http://www.gnu.org/licenses/ GNU General Public License, Version 3
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*/
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abstract class ColorUtil {
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/**
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* Convert the given float value to a color code from red to green
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*
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* @param float $value
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* @return string
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*/
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public static function floatToStatusColor($value) {
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$value = floatval($value);
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$red = 1.;
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$green = 1.;
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if ($value < 0.5) {
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$green = $value * 2.;
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}
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if ($value > 0.5) {
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$red = 2. * (1. - $value);
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}
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$red = ColorUtil::floatToCode($red);
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$green = ColorUtil::floatToCode($green);
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return $red . $green . '0';
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}
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/**
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* Get hex color representation of the float
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*
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* @param float $value
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* @return string
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*/
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public static function floatToCode($value) {
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$value = floatval($value);
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if ($value < 0.) {
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$value = 0.;
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}
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if ($value > 1.) {
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$value = 1.;
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}
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$value *= 15.;
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$value = (int)round($value);
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if ($value < 10) {
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return (string)$value;
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}
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$codes = array(10 => 'a', 11 => 'b', 12 => 'c', 13 => 'd', 14 => 'e', 15 => 'f');
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return $codes[$value];
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}
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}
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