1 files changed, 38 insertions, 0 deletions
diff --git a/game/plugins/orientation.js b/game/plugins/orientation.js
new file mode 100644
index 0000000..77ad9fc
--- /dev/null
+++ b/game/plugins/orientation.js
@@ -0,0 +1,38 @@
+'use strict';
+
+var Orientation = function() {
+	this.onLeft = new Phaser.Signal();
+	this.onRight = new Phaser.Signal();
+	this.onUp = new Phaser.Signal();
+	this.onDown = new Phaser.Signal();
+
+	var previousEvent = {
+		gamma: 0,
+		beta: 0
+	};
+
+	var threshhold = 15;
+
+	var processOrientationEvent = function(event) {
+		if (event.gamma < -threshhold && previousEvent.gamma >= -threshhold) {
+			this.onLeft.dispatch();
+		}
+		if (event.gamma > threshhold && previousEvent.gamma <= threshhold) {
+			this.onRight.dispatch();
+		}
+		if (event.beta < -threshhold && previousEvent.beta >= -threshhold) {
+			this.onUp.dispatch();
+		}
+		if (event.beta > threshhold && previousEvent.beta <= threshhold) {
+			this.onDown.dispatch();
+		}
+
+
+		previousEvent = event;
+	}
+
+	window.addEventListener('deviceorientation', processOrientationEvent);
+}
+
+
+module.exports = Orientation;