void OSBB10::handle_accelerometer() {
if (!accel_supported)
return;
if (!fullscreen)
return;
double force_x, force_y, force_z;
accelerometer_read_forces(&force_x, &force_y, &force_z);
Vector3 accel = Vector3(force_x, flip_accelerometer ? force_y : -force_y, force_z);
input->set_accelerometer(accel);
// rotate 90 degrees
//input->set_accelerometer(Vector3(force_y, flip_accelerometer?force_x:(-force_x), force_z));
};
void CCAccelerometer::update(long timeStamp)
{
if ( m_pAccelDelegate != NULL)
{
double x, y, z;
accelerometer_read_forces(&x, &y, &z);
m_accelerationValue.x = x;
m_accelerationValue.y = y;
m_accelerationValue.z = z;
m_accelerationValue.timestamp = (double)timeStamp;
m_pAccelDelegate->didAccelerate(&m_accelerationValue);
}
}
bool GetAcceleration (double &outX, double &outY, double &outZ) {
int result = accelerometer_read_forces (&outX, &outY, &outZ);
if (getenv ("FORCE_PORTRAIT") != NULL) {
int cache = outX;
outX = outY;
outY = -cache;
}
outZ = -outZ;
return (result == BPS_SUCCESS);
//return (accelerometer_read_forces (&outX, &outY, &outZ) == BPS_SUCCESS);
}
void Platform::getAccelerometerValues(float* pitch, float* roll)
{
double tx, ty, tz;
accelerometer_read_forces(&tx, &ty, &tz);
// Hack landscape adjustment only.
if (__orientationAngle == 0)
{
tx = -tx;
ty = -ty;
tz = -tz;
}
if (pitch != NULL)
*pitch = atan(ty / sqrt(tx * tx + tz * tz)) * 180.0f * M_1_PI;
if (roll != NULL)
*roll = atan(tx / sqrt(ty * ty + tz * tz)) * 180.0f * M_1_PI;
}
/**
* A sample application demonstrates the BlackBerry Native APIs for accelerometer.
* The sample initializes and reads the accelerometer periodically until a
* NAVIGATOR_EXIT event is received.
* The application also listens for window state changes from the navigator so that
* it can stop reading the accelerometer when the application is no longer visible.
*/
int
main(int argc, char *argv[])
{
if (setup_screen() != EXIT_SUCCESS) {
printf("Unable to set up the screen. Exiting.");
return 0;
}
/*
* The accelerometer forces
*/
double force_x, force_y, force_z;
/*
* Before we can listen for events from the BlackBerry Tablet OS platform
* services, we need to initialize the BPS infrastructure
*/
bps_initialize();
/*
* Once the BPS infrastructure has been initialized we can register for
* events from the various BlackBerry Tablet OS platform services. The
* Navigator service manages and delivers application life cycle and
* visibility events.
* For this sample, we request Navigator events so we can track when
* the system is terminating the application (NAVIGATOR_EXIT event). This allows
* us to clean up application resources.
*/
navigator_request_events(0);
/*
* Before initializing the accelerometer service we must ensure the device
* supports it
*/
if (!accelerometer_is_supported()) {
/*
* If the device does not support accelerometer then notify the user,
* clean up and exit
*/
printf("Accelerometer not supported by device!");
bps_shutdown();
return EXIT_FAILURE;
}
/*
* Initialize the accelerometer by setting the rates at which the
* accelerometer values will be updated from hardware
*/
accelerometer_set_update_frequency(FREQ_40_HZ);
/*
* Process Navigator events and take accelerometer readings periodically
* until we receive a NAVIGATOR_EXIT event.
*/
int exit_application = 0;
int paused = 0;
while (!exit_application) {
/*
* By setting the bps_get_event timeout to ACCELEROMETER_MAX_POLL_INTERVAL,
* we assign the maximum time (in millis) that we will wait before
* unblocking so we can take an accelerometer reading.
*/
bps_event_t *event = NULL;
bps_get_event(&event, ACCELEROMETER_MAX_POLL_INTERVAL);
if (event) {
if (bps_event_get_domain(event) == navigator_get_domain()) {
/*
* If it is a NAVIGATOR_EXIT event then set the
* exit_application flag so the application will stop
* processing events, clean up and exit.
*
* If it is a NAVIGATOR_WINDOW_STATE event, and the window
* state is NAVIGATOR_WINDOW_INVISIBLE, set paused to true so
* that we stop collecting accelerometer data. Otherwise, if
* we're currently paused, then set paused back to false to
* resume collecting accelerometer data.
*/
unsigned int event_code = bps_event_get_code(event);
if (NAVIGATOR_EXIT == event_code) {
exit_application = 1;
} else if (NAVIGATOR_WINDOW_STATE == event_code) {
if (navigator_event_get_window_state(event) == NAVIGATOR_WINDOW_FULLSCREEN) {
/*
* The application is now full screen.
* Resume reading the accelerometer.
*/
paused = 0;
printf("Resuming accelerometer reads.\n");
} else if (!paused){
/*
* The application has become thumbnailed or invisible.
* If it is not already paused, then pause it.
* Otherwise, ignore the window state change.
*/
paused = 1;
printf("Resuming accelerometer reads.\n");
}
}
}
/*
* Remember to destroy any delivered events as we need to trigger
* the release of any event resources when we are done processing
* it.
*/
bps_event_destroy(event);
} else {
/*
* We've woken up. See if we are in the paused state. If not,
* take an accelerometer reading
*/
if (!paused) {
accelerometer_read_forces(&force_x, &force_y, &force_z);
display_accelerometer_reading(
ACCELEROMETER_CALCULATE_PITCH(force_x, force_y, force_z),
ACCELEROMETER_CALCULATE_ROLL(force_x, force_y, force_z));
}
}
}
/*
* Clean up screen resources
*/
screen_destroy_window(screen_win);
screen_destroy_context(screen_ctx);
/*
* Clean up the BPS infrastructure and exit
*/
bps_shutdown();
return 0;
}