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#include "gruesensorimpl.h"
#include <QDebug>
char const * const gruesensorimpl::id("grue.gruesensor");
gruesensorimpl::gruesensorimpl(QSensor *sensor)
: QSensorBackend(sensor)
{
lightSensor = new QAmbientLightSensor(this);
lightSensor->addFilter(this);
lightSensor->connectToBackend();
setReading<GrueSensorReading>(&m_reading);
setDataRates(lightSensor);
addOutputRange(0, 1, 0.1);
setDescription(QLatin1String("Grue Sensor"));
}
void gruesensorimpl::start()
{
lightSensor->setDataRate(sensor()->dataRate());
lightSensor->start();
}
void gruesensorimpl::stop()
{
lightSensor->stop();
}
bool gruesensorimpl::filter(QAmbientLightReading *reading)
{
qreal chance;
switch (reading->lightLevel()) {
case QAmbientLightReading::Undefined:
chance = 0.5; // No idea... call it 50/50
break;
case QAmbientLightReading::Dark:
chance = 1.0;
break;
case QAmbientLightReading::Twilight:
chance = 0.1;
break;
default:
chance = 0.0;
break;
}
if (chance != m_reading.chanceOfBeingEaten()) {
m_reading.setTimestamp(reading->timestamp());
m_reading.setChanceOfBeingEaten(chance);
newReadingAvailable();
}
return true;
}