restitution
A factor that determines how much kinetic energy the body loses or gains in collisions.
Declaration
var restitution: CGFloat { get set }Discussion
This property simulates the “bounciness” of a body. A restitution of 1.0 means that the body loses no energy in a collision—for example, a ball dropped onto a flat surface will bounce back to the height it fell from. A restitution of 0.0 means the body does not bounce after a collision. A restitution of greater than 1.0 causes the body to gain energy in collisions. The default restitution is 0.5.