Created
August 22, 2016 12:14
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For when you need a quantum boolean that is true only some percent of the time.
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<?php | |
namespace Zegnat; | |
class QBool | |
{ | |
public $chance; | |
public $scale; | |
public function __construct($chance) | |
{ | |
if (is_int($chance)) { | |
$chance = strval($chance); | |
} elseif (is_float($chance)) { | |
$chance = strval($chance); | |
str_replace(localeconv()['decimal_point'], '.', $chance); | |
} | |
if (is_string($chance) && strlen($chance) > 0 && preg_match('/^(?=.*\d.*)\d*\.?\d*$/', $chance) === 1) { | |
$decimalposition = strpos($chance, '.'); | |
if ($decimalposition !== false) { | |
$scale = strlen(rtrim($chance, '0')) - $decimalposition - 1; | |
} else { | |
$scale = 0; | |
} | |
if (bccomp($chance, '0', $scale) === -1 || bccomp($chance, '1', $scale) === 1) { | |
echo 'Out of range.'; | |
} | |
$this->scale = $scale; | |
$this->chance = $chance; | |
} else { | |
echo 'Not a valid chance string.'; | |
} | |
} | |
public function getChance(): string | |
{ | |
return bcadd($this->chance, '0', $this->scale); | |
} | |
public function asBool(): bool | |
{ | |
$random = '0.'; | |
for ($i = 0; $i < $this->scale; $i++) { | |
$random .= random_int(0, 9); | |
} | |
return bccomp($this->chance, $random, $this->scale) === 1; | |
} | |
public function asBoolean(): bool | |
{ | |
return $this->asBool(); | |
} | |
} |
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