/**
* Reads tremolo bar
*
* @param NoteEffect $noteEffect
*/
public function readTremoloBar(NoteEffect $effect)
{
$tremoloBar = new EffectTremoloBar();
$this->reader->skip(5);
$points = $this->reader->readInt();
for ($i = 0; $i < $points; $i++) {
$position = $this->reader->readInt();
$value = $this->reader->readInt();
$this->reader->readByte();
$pointPosition = round($position * EffectTremoloBar::MAX_POSITION_LENGTH / GuitarProReaderInterface::GP_BEND_POSITION);
$pointValue = round($value / (GuitarProReaderInterface::GP_BEND_SEMITONE * 2));
$tremoloBar->addPoint($pointPosition, $pointValue);
}
if (count($tremoloBar->getPoints())) {
$effect->setTremoloBar($tremoloBar);
}
}
private function writeTremoloBar(EffectTremoloBar $effect)
{
$points = count($effect->getPoints());
$this->writeByte(1);
$this->writeInt(0);
$this->writeInt($points);
for ($i = 0; $i < $points; $i++) {
$point = $effect->getPoints()[$i];
$this->writeInt($point->getPosition() * GprInterface::GP_BEND_POSITION / EffectBend::MAX_POSITION_LENGTH);
$this->writeInt($point->getValue() * GprInterface::GP_BEND_SEMITONE * 2);
$this->writeByte(0);
}
}
/**
* Reads tremolo bar
*
* @param NoteEffect $noteEffect
*/
public function readTremoloBar(NoteEffect $noteEffect)
{
$value = $this->reader->readInt();
$effect = new EffectTremoloBar();
$effect->addPoint(0, 0);
$effect->addPoint(round(EffectTremoloBar::MAX_POSITION_LENGTH / 2), round(-($value / (GuitarProReaderInterface::GP_BEND_SEMITONE * 2))));
$effect->addPoint(EffectTremoloBar::MAX_POSITION_LENGTH, 0);
$noteEffect->setTremoloBar($effect);
}
