@class SKNode; @interface IKLink : NSObject @property (retain, nonatomic) SKNode *node; @property (nonatomic) union _GLKVector2 { struct { float x; float y; } ; struct { float s; float t; } ; float v[2]; } position; @property (nonatomic) float angleInitial; @property (readonly, nonatomic) float angle; @property (nonatomic) float length; @property (nonatomic) union _GLKVector2 { struct { float x; float y; } ; struct { float s; float t; } ; float v[2]; } size; - (id)initWithNode:(id)a0; - (void).cxx_destruct; - (double)normalizeAngle:(double)a0; - (void)rotateByAngle:(float)a0; @end