protected function adjusted_fraction($fraction, $prevtries)
{
if (!isset($this->question->penaltyregime) || $this->question->penaltyregime === '') {
return parent::adjusted_fraction($fraction, $prevtries);
} else {
if ($prevtries == 0) {
return $fraction;
} else {
$penalties = explode(",", $this->question->penaltyregime);
$n = count($penalties);
if (trim($penalties[$n - 1]) === '...') {
$delta = floatval($penalties[$n - 2]) - floatval($penalties[$n - 3]);
$penalties[$n - 1] = min(100, $penalties[$n - 2] + $delta);
while ($penalties[$n - 1] < 100) {
$penalties[] = min(100, $penalties[$n - 1] + $delta);
$n++;
}
}
$i = min($n - 1, $prevtries - 1);
$penalty = floatval($penalties[$i]) / 100.0;
return $fraction - $penalty;
}
}
}
protected function adjusted_fraction($fraction, $prevtries)
{
$numprechecks = $this->qa->get_last_behaviour_var('_numprechecks', 0);
$prevtries -= $numprechecks;
// Deduct prechecks from tries.
if (!isset($this->question->penaltyregime) || $this->question->penaltyregime === '') {
return parent::adjusted_fraction($fraction, $prevtries);
} else {
if ($prevtries == 0) {
return $fraction;
} else {
$penalties = explode(",", $this->question->penaltyregime);
$n = count($penalties);
if (trim($penalties[$n - 1]) === '...') {
$delta = floatval($penalties[$n - 2]) - floatval($penalties[$n - 3]);
$penalties[$n - 1] = min(100, $penalties[$n - 2] + $delta);
while ($penalties[$n - 1] < 100) {
$penalties[] = min(100, $penalties[$n - 1] + $delta);
$n++;
}
}
$i = min($n - 1, $prevtries - 1);
$penalty = floatval($penalties[$i]) / 100.0;
return $fraction - $penalty;
}
}
}
