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iOS Build a Game with Sprite Kit Physics and Collision Contact Detection using SKPhysicsContactDelegate

Posted by Shaun Kelly
Shaun Kelly
5,648 Points

Type Casting!?

Can somebody please explain what type casting is? 

ProjectileNode *projectile = (ProjectileNode*) firstBody.node;
                               //^^^
Russell Warwick
Russell Warwick
1,601 Points

Okay so im not an expert by any means but basically it is away of changing the type of something for your example because ProjectileNode is of type SKSpriteNode but you assigning it to an SKNode so it just allows you to change it.<p></p> Here is an example using the value of a integer for the value of a float. <p>``` int x=6;

float y =(int)x;

NSLog(@"Float y:%f",y); </p>

  So this will print out    "Float y:6.0000000" 

Pretty easy when you get your head around it :)

2 Answers

Shaun Kelly
Shaun Kelly
5,648 Points
Shaun Kelly
Shaun Kelly
5,648 Points

Is that Objective-C

Russell Warwick
Russell Warwick
1,601 Points

Sorry my bad, there you go ;)

Russell Warwick
Russell Warwick
1,601 Points

Do you understand it?

Shaun Kelly
Shaun Kelly
5,648 Points
Shaun Kelly
Shaun Kelly
5,648 Points

not really haha because isn't the float already an int ? or I must be getting mixed up with something else