I have an SKShapeNode which is supposed to be a paddle in a breakout-style game which I would like to scale in width by some factor.
It looks like this:
After I run
[SKAction scaleXBy:3.f / 2.f y:1.0 duration:1.0],
it looks like this (ignore the other grey brick in the corner, that's just another paddle):
The problem is that the triangles on the side are no longer 45-45-90.
That's to be expected because you don't preserve the aspect ratio of the shape when scaling x by 1.5 and not scaling y (1.0).
You'll have to create a new shape by changing the path property to use a path that adheres to your specifications.
What you're essentially asking for is to scale the center rectangle without scaling the triangles at either end. To do that easily, you could create a compound of four nodes — a parent node that contains separate nodes for the three shapes. When you want to embiggen your paddle, scale the rectangle and move the triangles.
