Looking for a method to tilt a sprite upwards on the right side when tapping the screen (like in flappy bird) Like a start of a rotation that returns to the place it were. I will use this as an effect of going faster then the sprite normally does.
I'll add the code I got so far below:
var player = SKSpriteNode()
override func didMoveToView(view: SKView) {
let playerTexture = SKTexture(imageNamed: "player")
player = SKSpriteNode(texture: playerTexture)
player.position = CGPoint(x: 200, y: 80)
player.physicsBody = SKPhysicsBody(texture: playerTexture, size: playerTexture.size())
player.physicsBody!.affectedByGravity = true
self.addChild(player)
}
override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {
}
Related
I have a basketball rim png that I want a basketball to go through if the user taps on the correct location above the rim but whenever I tap the screen for the ball to drop down, it always bounces off the rim even if it is directly above it and is supposed to go through it. How would I allow the basketball to fall directly through the hoop? Here is my code. Thanks.
import SpriteKit
import GameplayKit
class GameScene: SKScene {
override func didMove(to view: SKView) {
//This is the basketball rim png that I put in my scene
let rim = SKSpriteNode(imageNamed: "resized Basketball hoop.png")
rim.position = CGPoint(x: 512, y: 384)
rim.physicsBody = SKPhysicsBody(texture: rim.texture!, size: rim.texture!.size())
rim.physicsBody?.isDynamic = false
addChild(rim)
}
override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
//This is when I touch the screen and a basketball falls from where I touched
if let touch = touches.first {
let location = touch.location(in: self)
let basketball = SKSpriteNode(imageNamed: "basketball png.png")
basketball.physicsBody = SKPhysicsBody(circleOfRadius: basketball.size.width / 16)
basketball.size.width = basketball.size.width / 8
basketball.size.height = basketball.size.height / 8
basketball.physicsBody?.restitution = 0.4
basketball.position = location
physicsBody = SKPhysicsBody(edgeLoopFrom: frame)
addChild(basketball)
}
}
}
I looking to move a sprite relative to the player's touch. I am familiar with the moveTo SKActions, however I am wondering how to implement sprite movement where the sprite moves along with the user's touch movement.
For example, I have a sprite in the centre of the screen. If I apply a touch at the bottom of the screen and move my finger up , the sprite will move up from the centre(it's original position).
Thanks!
Try this :
import SpriteKit
class GameScene: SKScene {
var node = SKSpriteNode()
var nodePosition = CGPoint()
var startTouch = CGPoint()
override func didMove(to view: SKView) {
self.anchorPoint = CGPoint(x: 0.5, y: 0.5)
// node set up
node = SKSpriteNode(color: .red, size: CGSize(width: 50, height: 50))
node.position = CGPoint.zero
self.addChild(node)
}
override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
let touch = touches.first
if let location = touch?.location(in: self){
startTouch = location
nodePosition = node.position
}
}
override func touchesMoved(_ touches: Set<UITouch>, with event: UIEvent?) {
let touch = touches.first
if let location = touch?.location(in: self){
node.run(SKAction.move(to: CGPoint(x: nodePosition.x + location.x - startTouch.x, y: nodePosition.y + location.y - startTouch.y), duration: 0.1))
}
}
}
So I am trying to make a ping pong game and I am able to get the ball moving and bouncing but the ball slows down. Whats the code to keep the balls velocity at a constant? Here's what I got:
var ball = SKSpriteNode()
var enemy = SKSpriteNode()
var main = SKSpriteNode()
override func didMove(to view: SKView) {
ball.physicsBody = SKPhysicsBody(circleOfRadius: ball.size.width)
ball = self.childNode(withName: "ball") as! SKSpriteNode
enemy = self.childNode(withName: "enemy") as! SKSpriteNode
main = self.childNode(withName: "main") as! SKSpriteNode
ball.physicsBody?.applyImpulse(CGVector(dx: 20, dy: 20))
let border = SKPhysicsBody(edgeLoopFrom: self.frame)
border.friction = 0
border.restitution = 1
self.physicsBody = border
}
override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
for touch in touches {
let location = touch.location(in: self)
main.run(SKAction.moveTo(x: location.x, duration: 0.2))
}
}
override func touchesMoved(_ touches: Set<UITouch>, with event: UIEvent?) {
for touch in touches {
let location = touch.location(in: self)
main.run(SKAction.moveTo(x: location.x, duration: 0.2))
}
}
override func update(_ currentTime: TimeInterval) {
// Called before each frame is rendered
enemy.run(SKAction.moveTo(x: ball.position.x, duration: 1.0))
}
}
My physics settings are set to the following:
physics definition
Thanks in advance!
I am making an app in Xcode 7 using Swift and SpriteKit. My idea is to have a spaceship that moves with the finger, or basically just follows it, yet I'm having trouble. This is the code:
import Foundation
import SpriteKit
class secondScene: SKScene {
override func didMoveToView(view: SKView) {
// var timer = NSTimer.scheduledTimerWithTimeInterval(0.2, target: self, selector: Selector(spawnBullets()), userInfo: nil, repeats: true)
//buttons
let leftbutton = SKSpriteNode(imageNamed: "LeftArrow")
leftbutton.position = CGPoint(x: self.frame.size.width*0.2, y: self.frame.size.height*0.1)
leftbutton.size = CGSize(width: 220, height: 80)
leftbutton.color = SKColor.blueColor()
leftbutton.zPosition = 100
self.addChild(leftbutton)
let rightbutton = SKSpriteNode(imageNamed: "RightArrow")
rightbutton.position = CGPoint(x: self.frame.size.width*0.8, y: self.frame.size.height*0.1)
rightbutton.size = CGSize(width: 220, height: 80)
rightbutton.color = SKColor.blueColor()
rightbutton.zPosition = 100
self.addChild(rightbutton)
//spaceship
let spaceship = SKSpriteNode(imageNamed: "spaceship")
spaceship.zPosition = 100
spaceship.size = CGSize(width: 200, height: 120)
spaceship.position = CGPoint(x: self.frame.size.width/2, y: self.frame.size.height*0.15)
self.addChild(spaceship)
}
let spaceship = SKSpriteNode(imageNamed: "spaceship")
override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {
for touch: AnyObject in touches {
let location = touch.locationInNode(self)
spaceship.position.x = location.x
}
}
}
I run this and to me it seems like my spaceship should follow my finger, yet it doesn't. It just stays in the position I specifies before. I've got no errors and I'm out of ideas. Any thoughts?
Remove this line in your spaceship code in didMoveToView
let spaceship = SKSpriteNode(imageNamed: "spaceship")
so that you are actually using the global property you created above touchesBegan.
You probably also want to include/move your code in touchesMoved.
override func touchesMoved(touches: Set<UITouch>, withEvent event: UIEvent?) {
for touch in touches {
let location = touch.locationInNode(self)
spaceship.position.x = location.x
}
}
Hope this helps
I am trying to move a sprite that is a red ball from left and right to the screen. I hear I can do this by using the velocity property maybe or another way would be ok too but here is my code.
import SpriteKit
class GameScene: SKScene, SKPhysicsContactDelegate {
let redBall = SKSpriteNode(imageNamed: "redball")
override func didMoveToView(view: SKView) {
let thrust = CGFloat(0.12)
let thrustDirection = Float()
//RedBall Properties
redBall.physicsBody = SKPhysicsBody(circleOfRadius: redBall.size.width/2)
redBall.physicsBody?.velocity
addChild(redBall)
//World Phyisics Properties
let worldBorder = SKPhysicsBody(edgeLoopFromRect: self.frame)
self.physicsBody?.friction = 1
self.physicsBody = worldBorder
self.physicsWorld.gravity = CGVectorMake(0, 0)
}
override func touchesBegan(touches: Set<NSObject>, withEvent event: UIEvent) {
}
override func touchesMoved(touches: Set<NSObject>, withEvent event: UIEvent) {
}
}
Thanks!
You may want to use an SKAction assuming you want it to slide across the screen as opposed to simply moving from point a to point b. You could do something like this:
let move = SKAction.moveToX(self.frame.size.width, duration: 1.0)
redBall.runAction(move)
This creates an SKAction called move that moves a node to the right side of the screen and then runs that action on a node, in this case the redBall.
To move to the left, you just change the x value in the move action to this:
let move = SKAction.moveToX(0, duration: 1.0)