Method rotateLeft

src/Geoscape/Globe.cpp:604–608

* Sets a leftwards rotation speed and starts the timer. */

 * Sets a leftwards rotation speed and starts the timer.
 */
void Globe::rotateLeft()
{
	_rotLon = -ROTATE_LONGITUDE;
	if (!_rotTimer->isRunning()) _rotTimer->start();
}

/**
 * Sets a rightwards rotation speed and starts the timer.