Free Accelerometer Tutorial with Actionscript 3, Flash CS5 and Device Central

Here’s a relatively short tutorial on using the new Accelerometer code in Actionscript 3 to create a simple tilt game where a ball potentially falls into a hole. This could be ported out to either the iPhone or Android, or any touch enabled device that Flash Player 10.1 runs on. Example files for this tutorial can be found at… cartoonsmart.com/​vimeo/​accelerometer_examples.zip

The fun-on-a-bun part of the Accelerometer code has been pasted below…

import flash.sensors.Accelerometer;

import flash.events.AccelerometerEvent;

var theAcc:Accelerometer = new Accelerometer();

theAcc.setRequestedUpdateInterval( 50 );
if (Accelerometer.isSupported == true) {

trace (“yep, it has that functionality”);

theAcc.addEventListener(AccelerometerEvent.UPDATE, onAccUpdate);

}else {

// do something different for the entire app

}

function onAccUpdate( e:AccelerometerEvent ):void {

//trace ( e.accelerationX );

//trace ( e.accelerationY );

ball.x -= ( e.accelerationX * 10);

ball.y += ( e.accelerationY * 10);

if ( ball.x < 0 ) {

ball.x = 0;

} else if (ball.x > stage.stageWidth ) {

ball.x = stage.stageWidth;

}

if ( ball.y < 0 ) {

ball.y = 0;

} else if (ball.y > stage.stageHeight ) {

ball.y = stage.stageHeight;

}

} //closes the onAccUpdate function

//more code is in the example files