This is the third of a multi-issue expose about the iPhone 4, iOS4, and the impact both may have on gaming on Apple mobile electronics (iPhone, iPod Touch, and iPad). Today I’m going to talk about what affect the gyroscope will have on gaming.
Another feature that Steve Jobs announced for the iPhone 4 is the gyroscope. If you wondered what the heck a gyroscope is, the simplest answer is that a gyroscope determines your orientation. Unlike the accelerometer, which measures out how fast your are going and can therefore determine which direction you’re facing, the gyroscope adds in measurements for pitch, roll, yaw, and turning around a gravitational axis.
Apple linked the accelerometer, the gyroscope, and the compass together. This means that in total your iPhone will now sense motion around six axis rather than just three. They also created new CoreMotion API calls (the API used to make calls for the directional aspects of the iPhone) so that developers can create applications using the gyroscope.