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'use strict';
var Orientation = function() {
var self = this;
self.onLeft = new Phaser.Signal();
self.onRight = new Phaser.Signal();
self.onUp = new Phaser.Signal();
self.onDown = new Phaser.Signal();
self.previousEvent = {
gamma: 0,
beta: 0
};
self.threshhold = 15;
if (window.DeviceOrientationEvent) {
window.addEventListener('deviceorientation', function(eventData) {
if (eventData.gamma < -self.threshhold && self.previousEvent.gamma >= -self.threshhold) {
self.onLeft.dispatch();
}
if (eventData.gamma > self.threshhold && self.previousEvent.gamma <= self.threshhold) {
self.onRight.dispatch();
}
if (eventData.beta < -self.threshhold && self.previousEvent.beta >= -self.threshhold) {
self.onUp.dispatch();
}
if (eventData.beta > self.threshhold && self.previousEvent.beta <= self.threshhold) {
self.onDown.dispatch();
}
self.previousEvent.gamma = eventData.gamma;
self.previousEvent.beta = eventData.beta;
});
}
};
module.exports = Orientation;
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