ios - SpriteKit create pulse action for SKShapeNode -


i trying create skshapenode pulsing effect skaction seen here: pulsing shape node

at moment, parent node containing 2 nodes: 1 main body of shape , 1 outline shape fades out. result, parent node being recognised upon touch bounds extending 'outline' child node.

is there alternative way of creating pulsing-outline effect want without having create separate nodes? i.e. skaction or perhaps, there way constrain size of containing node main shape body , still able see outline effect?


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