How to create joints in Sprite Kit (Xcode)?

问题

I don't understand how to create a joint to connect two bodies in SpriteKit. Thanks for help.

回答1:

The principle is the same for all joint types. First, create a joint connecting two bodies with some additional parameters (refer to the Sprite Kit Framework reference for details). Then add the newly created joint to the physics world:

CGPoint anchor = CGPointMake(100, 100);
SKPhysicsJointFixed* fixedJoint = [SKPhysicsJointFixed jointWithBodyA:aBody 
                                                                bodyB:otherBody
                                                               anchor:anchor];
[self.scene.physicsWorld addJoint:fixedJoint];

Now smoke it!

来源：https://stackoverflow.com/questions/18931353/how-to-create-joints-in-sprite-kit-xcode