Creates an action that changes the mass of a node’s physics body by a relative value.
- iOS 9.0+
- macOS 10.11+
- Mac Catalyst 13.0+
- tvOS 9.0+
- watchOS 2.0+
The amount to add to the physics body’s mass.
The duration of the animation.
A new action object.
When the action executes, the physics body’s
mass property animates from its current value to its new value.
This action is reversible; the reverse is created as if the following code is executed: