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Pedometer API
Pedometer is a native pedometer API for the Unity game engine. The API provides sensor information about step count and distance covered (in meters). It is a minimalist API with native backends on iOS and Android. There is also a backend that uses GPS in the case that a hardware pedometer is not available for use. Download the unitypackage here.
Pedometer
To use the API, simply create a Pedometer
instance:
// Create a pedometer
// The OnStep callback will be invoked each time a step is detected
var pedometer = new Pedometer(OnStep);
void OnStep (int steps, double distance) {
// Display the values
stepText.text = steps.ToString();
// Display distance in feet
distanceText.text = (distance * 3.28084).ToString("F2") + " ft";
}
When you are done detecting steps from a Pedometer
instance, you must dispose it:
// Dispose of this pedometer instance
pedometer.Dispose();
Because the API uses native resources, you may wish to release these resources (like stopping the step sensor to save power). To do so, use the Release
function:
// Release Pedometer's native resources
Pedometer.Release();
Architecture
The Pedometer API is modeled after the NatCam API, comprising of a unified front end and several platform-specific backend implementations. Each backend implementation must implement the IPedometer
interface. These backend implementations are responsible for managing native resources and sensor events. On Android, Pedometer uses SensorManager
whereas on iOS, Pedometer uses CMPedometer
.
Modifications
To make modifications, simply edit the sources in Pedometer>Plugins. The Android
directory contains the Android source, a Makefile, and an AndroidManifest.xml (which must not be renamed or moved). To build your Android changes, modify the Makefile with paths specific to your installations then run make
in the Android
directory. The java source will be compiled into a .jar which will be included in the application binary.
On iOS, simply make changes you want. No need to build anything; the Unity build process will copy the Objective-C++ sources to the XCode project.
Please contribute your changes back to the repository! Since Pedometer is open source, its development must be driven by the community.