public function evaluate($scope = [])
{
for ($i = 0; $i < $this->count; $i++) {
$this->results[] = rollDie($this->sides);
}
$this->value = array_reduce($this->results, function ($sum, $result) {
return $sum + $result;
}, 0);
return $this;
}
/**
* Re-roll a die when result below the first input parameter
*
* @param $minVal float
* @param $expr Roll
* @param $scope Scope
*
* @return int
* @throws \TypeError
*/
public function rerollBelow($minVal, $expr, $scope)
{
$roll = $expr->evaluate($scope);
if ($expr->type !== 'roll') {
throw new \TypeError('Non-roll passed to "rerollBelow()": ' . $expr);
}
$minVal = $minVal->evaluate($scope);
if (!is_numeric($minVal->value)) {
throw new \TypeError('Non-number passed to "rerollBelow()": ' . $minVal->value);
}
$results = array_reduce($roll->results, function ($results, $result) use($minVal, $roll) {
if ($result <= $minVal->value) {
// We reroll, and keep
$results[] = rollDie($roll->sides);
} else {
$results[] = $result;
}
return $results;
}, []);
return array_reduce($results, function ($sum, $result) {
return $sum + $result;
}, 0);
}
