distance(_:to:)
Creates a constraint that keeps a node within a certain distance of a point.
Declaration
class func distance(_ range: SKRange, to point: CGPoint) -> SelfParameters
- range:
The range of allowed distances between the node and the point.
- point:
A point in the coordinate system of the node’s parent that is used to calculate the distance.
Return Value
A new constraint.
Discussion
Each time when constraints are applied, a line is projected between the node’s position and the target point. The distance between the two points is calculated, and if it lies outside the specified range, the node is pushed or pulled along this line until it lies within the range.