Trying to move / drag SKSpriteNode in y axis - ios

Question

I'm trying to create a small game ,and in there there is a pipe , and i want to move that pipe along with the y axis , i want to do thins for finger swipe , i tried to do this with touches began but its doesn't looks smooth , so i tried to use uipangesture , but in not familiar with the sprite integration ,
can someone help me to achive this
class GameScene: SKScene,SKPhysicsContactDelegate {
var pipeTextureUp:SKTexture!
var pipeTextureDown:SKTexture!
var pipeUp:SKSpriteNode!
var pipeDown:SKSpriteNode!
var circleTouch: UITouch?
var verticalPipeGap:Double = 60.0
var moveStatus: Bool!
override func didMoveToView(view: SKView) {
/* Setup your scene here */
backgroundColor = SKColor.whiteColor()
//set the gravity
self.physicsWorld.gravity = CGVector(dx: 0.0, dy: 0.0)
self.physicsWorld.contactDelegate = self
//first create the pipe in a random location
pipeTextureUp = SKTexture(imageNamed: "PipeUp")
pipeTextureUp.filteringMode = .Nearest
pipeTextureDown = SKTexture(imageNamed: "PipeDown")
pipeTextureDown.filteringMode = .Nearest
pipeUp = SKSpriteNode(texture: pipeTextureUp)
pipeUp.setScale(2.0)
pipeUp.name = "pipeUp"
pipeUp.position = CGPoint(x: size.width * 0.9, y: 0.0)
pipeDown = SKSpriteNode(texture: pipeTextureDown)
pipeDown.setScale(2.0)
pipeDown.name = "pipeDown"
pipeDown.position = CGPoint(x: Double(size.width) * 0.9 , y: Double(pipeDown.size.height) + verticalPipeGap)
//addChild(pipeDown)
addChild(pipeUp)
}
func didBeginContact(contact: SKPhysicsContact) {
}
override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {
let touch:UITouch = touches.first!
let positionInScene = touch.locationInNode(self)
let touchedNode = self.nodeAtPoint(positionInScene)
if let name = touchedNode.name
{
if (name == "pipeUp" || name == "pipeDown" )
{
print("touches started")
moveStatus = true
circleTouch = touch
}
}
}
override func touchesMoved(touches: Set<UITouch>, withEvent event: UIEvent?) {
let touch:UITouch = touches.first!
let positionInScene = touch.locationInNode(self)
let touchedNode = self.nodeAtPoint(positionInScene)
print(positionInScene)
if let name = touchedNode.name
{
if (name == "pipeUp" || name == "pipeDown" )
{
//let fingerPoint = CGPoint(x: size.width * 0.9, y: 0.3)
let actionUpMove:SKAction = SKAction.moveToY(positionInScene.y, duration: 1.0)
pipeUp.runAction(actionUpMove)
pipeUp.position.y = positionInScene.y
}
}
}
override func touchesEnded(touches: Set<UITouch>, withEvent event: UIEvent?) {
let touch:UITouch = touches.first!
let positionInScene = touch.locationInNode(self)
let touchedNode = self.nodeAtPoint(positionInScene)
if let name = touchedNode.name
{
if (name == "pipeUp" || name == "pipeDown" )
{
//let fingerPoint = CGPoint(x: size.width * 0.9, y: 0.3)
circleTouch = nil
}
}
}
}

Answer 1

If you want to intercept your swiping along Y coordinate you could put this code in didMoveToView:
let swipeUp:UISwipeGestureRecognizer = UISwipeGestureRecognizer(target: self, action: #selector(GameScene.swipedUp(_:)))
swipeUp.direction = .Up
swipeUp.cancelsTouchesInView = true
swipeUp.delaysTouchesBegan = true
view.addGestureRecognizer(swipeUp)
let swipeDown:UISwipeGestureRecognizer = UISwipeGestureRecognizer(target: self, action: #selector(GameScene.swipedDown(_:)))
swipeDown.direction = .Down
swipeDown.cancelsTouchesInView = true
swipeDown.delaysTouchesBegan = true
view.addGestureRecognizer(swipeDown)
Then your methods are:
func swipedUp(sender:UISwipeGestureRecognizer){
print("swiped up")
}
func swipedDown(sender:UISwipeGestureRecognizer){
print("swiped down")
}

Answer 2

UPDATE : apparently this is what i had to do ,
override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {
let touch:UITouch = touches.first!
let positionInScene = touch.locationInNode(self)
let touchedNode = self.nodeAtPoint(positionInScene)
if let name = touchedNode.name
{
if (name == "pipeUp" || name == "pipeDown" )
{
handleTouch(touches.first!, name: name)
}
}
}
override func touchesMoved(touches: Set<UITouch>, withEvent event: UIEvent?) {
let touch:UITouch = touches.first!
let positionInScene = touch.locationInNode(self)
let touchedNode = self.nodeAtPoint(positionInScene)
if let name = touchedNode.name
{
if (name == "pipeUp" || name == "pipeDown" )
{
handleTouch(touches.first!, name: name)
}
}
}
override func touchesEnded(touches: Set<UITouch>, withEvent event: UIEvent?) {
let touch:UITouch = touches.first!
let positionInScene = touch.locationInNode(self)
let touchedNode = self.nodeAtPoint(positionInScene)
if let name = touchedNode.name
{
if (name == "pipeUp" || name == "pipeDown" )
{
handleTouch(touches.first!, name: name)
}
}
}
func handleTouch(touch: UITouch , name : String) {
let location = touch.locationInNode(self) // get the current point
let node = self.nodeAtPoint(location) //get the current node based on the touched location
let previousLocation = touch.previousLocationInNode(self) //get the previous location in node
let diff = location.y - previousLocation.y; //get the different of location
let newPosition = CGPointMake(node.position.x, node.position.y + diff);
var newPipeDownPosition :CGPoint;
if (name == "pipeDown" )
{
newPipeDownPosition = CGPointMake(self.pipeUp.position.x, self.pipeUp.position.y + diff);
pipeDown.position.y = newPosition.y
pipeUp.position.y = newPipeDownPosition.y
}else{
newPipeDownPosition = CGPointMake(self.pipeDown.position.x, self.pipeDown.position.y + diff);
pipeUp.position.y = newPosition.y
pipeDown.position.y = newPipeDownPosition.y
}
}
now the pipe moves according to top and down direction