@interface PKExtendedPhysicsBody : PKPhysicsBody { long long _associations; double _areaFactor; } @property (nonatomic) double normalizedDensity; + (id)bodyWithRectangleOfSize:(struct CGSize { double x0; double x1; })a0 center:(struct CGPoint { double x0; double x1; })a1; + (id)bodyWithBodies:(id)a0; + (id)bodyWithCircleOfRadius:(double)a0; + (id)bodyWithEdgeChainFromPath:(struct CGPath { } *)a0; + (id)bodyWithEdgeFromPoint:(struct CGPoint { double x0; double x1; })a0 toPoint:(struct CGPoint { double x0; double x1; })a1; + (id)bodyWithEdgeLoopFromPath:(struct CGPath { } *)a0; + (id)bodyWithEllipseInRect:(struct CGRect { struct CGPoint { double x0; double x1; } x0; struct CGSize { double x0; double x1; } x1; })a0; + (id)bodyWithPolygonFromPath:(struct CGPath { } *)a0; + (id)bodyWithRectangleOfSize:(struct CGSize { double x0; double x1; })a0; - (id)init; - (id)description; - (void)associate; - (BOOL)dissociate; - (id)initWithRectangleOfSize:(struct CGSize { double x0; double x1; })a0; @end