// // Point2D.h // ExploringGraphics2 // // Copyright TrailsintheSand.com 2008. All rights reserved. // #import @class Vector2D; @interface Point2D : NSObject { CGFloat X; CGFloat Y; } @property (assign) CGFloat X; @property (assign) CGFloat Y; - (id)initWithX:(CGFloat)x Y:(CGFloat)y; - (void)addVector:(Vector2D*)vector; - (void)subtractVector:(Vector2D*)vector; - (void)multiplyVector:(Vector2D*)vector; @end