Some types of interaction and animation are easiest to describe using physics simulation. Fuse comes with a set of physics based triggers and behaviors which can be used for these situations.
Each physics behavior is designed to simulate a certain kind of force. They apply these forces to each frame of the animation. Affected elements can respond to multiple forces at a time. Check out the swipe places example for a good introduction to the Fuse physics API.
Each physics behavior in Fuse implements its own physics rule. There are currently only a few rules to choose from with more coming in the future.
The PointAttractor is one of the most basic physics based behaviors. It creates a force field which attracts elements within a certain radius by a given force.
<PointAttractor Radius="400" Strength="250" />
<Rectangle Color="Red" Width="100" Height="100"> <Draggable/> </Rectangle>