Change a SKPhysicsBody's body shape

问题

I don't want to change ANYTHING other than the body that defines the shape of a SKPhysicsBody. How do I do this?

I can't seem to find where I can change this.

Or even commentary on how to change it.

Yes, I know this has to be done carefully, so that it avoids all possible new collisions, overlaps, etc. But putting that aside, how do I change the body of an SKPhysicsBody?

回答1:

You can manually create a custom shape for a physics body using CGMutablePath, then pass it into the SKPhysicsBody constructor.

For example:

let path = CGMutablePath()
path.move(to: CGPoint(.....))
path.addLine(to: CGPoint(.....))

let customPhysicsBody = SKPhysicsBody(edgeChainFrom: path)

来源：https://stackoverflow.com/questions/41532393/change-a-skphysicsbodys-body-shape