Boo!
July 2015 | By Larva Labs
In Boo!, cute little creatures crowd the screen. But as soon as they see your face, they all run away.
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The app makes use of the front-facing camera of the device. A face detection algorithm determines if the creatures are being watched. Their movements are governed by spring/mass physics simulations, and they are drawn purely algorithmically with no bitmaps or canned animations.