skphysicsbody

I am trying to implement a simple category for SKPhysicsBody that will allow me to apply 'perfect bouncing' to a physics body. What this will simply do is when perfectBouncing = YES the following will happen: restitution = 1.0 linearDamping = 0.0 friction = 0.0 However, when I try to use my implementation as shown below, I get a weird crash telling me that I can't send perfectBouncing messages to PKPhysicsBody , which is a class that I never refer to and doesn't exist in my project or to my knowledge in the SpriteKit SDK. And yes, the catagory is being imported. Crash Message -[PKPhysicsBody

I am looking at tutorial where things are defined like this: planes are sprites with dynamic physics bodies plane moving is done with actions by following the path there is contact detection between bullet and plane bullet is sprite and it has physics body set to be static (which is little unusual in my opinion) Here is the link to tutorial for more information. Questions: When we use actions to move physicsBodies is there a difference how we set body's dynamic property? Because bullet is static but still there is no problem for movement. When we have situation like this, where we don't need

I have the following sprite that falls to the bottom of the screen: // The View self.physicsBody = [SKPhysicsBody bodyWithEdgeLoopFromRect:self.frame]; self.physicsWorld.contactDelegate = self; // The Sprite SKSpriteNode *cube = [[SKSpriteNode alloc] initWithImageNamed:@"cube"]; [cube setPosition:CGPointMake(160,250); [self addChild:cube]; // The Physics cube.physicsBody = [SKPhysicsBody bodyWithRectangleOfSize:cube.frame.size]; cube.physicsBody.dynamic = YES; cube.physicsBody.affectedByGravity = YES; cube.physicsBody.mass = 0.02; Is there a way to make it so its sides are bulging when it hits

The following code recognizes the bottom and top edges of the scene and the ball bounces off as expected. However, the left and right edges of the scene are breached all the time. The ball goes off screen and then eventually returns back if enough force is applied. It is as if the edges of the scene are beyond the edges of the iphone simulator window. import SpriteKit class GameScene: SKScene { override func didMoveToView(view: SKView){ self.physicsBody = SKPhysicsBody(edgeLoopFromRect: self.frame) backgroundColor = UIColor.cyanColor() var ball = SKSpriteNode(imageNamed: "ball") ball.position

I'm making a game in sprite kit (2D) . I have this code: meteor.physicsBody = SKPhysicsBody(rectangleOfSize: enemy.size) and I have a meteor image that you need to destroy but sometimes when I shoot on my device to the meteor the bullet goes through the meteor is this a bug or did I do something wrong? and How can I fix this issue? thanks for reading my problem, I hope someone can help me! if you don't understand my question plz comment what you don't understand. func fireBullet() { let bullet = SKSpriteNode(imageNamed: "bullet") bullet.name = "Bullet" bullet.setScale(2.9) bullet.position =

I am curious about a situation that I came across today when trying to unarchive and copy a SKSpriteNode from one SKScene to another. In the output from the playground below you can see that both linearDamping and angularDamping or not being maintained after the copy (they seem to be dropping back to default values) // PLAYGROUND_SW1.2 - SKSpriteNode Copy import UIKit import SpriteKit // ORIGINAL let spriteNode = SKSpriteNode() spriteNode.name = "HAPPY_NODE" let size = CGSize(width: 55.0, height: 150.0) let physics = SKPhysicsBody(rectangleOfSize: size) physics.linearDamping = 0.123 physics