Character is not moving in desired scene in scenekit - ios

Question

i want to move my character in scene kit .i have a map as at github Fpscontroller and i want my character move in this map but when ever i touch to move character it jumps and don,t know where is goes here is my code.`
override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {
for touch in touches {
if CGRectContainsPoint(gameView.virtualDPadBounds(), touch.locationInView(gameView)) {
if padTouch == nil {
padTouch = touch
controllerStoredDirection = float2(0.0)
}
} else if panningTouch == nil {
panningTouch = touches.first
}
if padTouch != nil && panningTouch != nil {
break
}
}
}
override func touchesMoved(touches: Set<UITouch>, withEvent event: UIEvent?) {
if let touch = panningTouch {
let displacement = (float2(touch.locationInView(view)) - float2(touch.previousLocationInView(view)))
panCamera(displacement)
}
if let touch = padTouch {
let displacement = (float2(touch.locationInView(view)) - float2(touch.previousLocationInView(view)))
controllerStoredDirection = clamp(mix(controllerStoredDirection, displacement, t: ViewController.controllerAcceleration), min: -ViewController.controllerDirectionLimit, max: ViewController.controllerDirectionLimit)
}
}
func commonTouchesEnded(touches: Set<UITouch>, withEvent event: UIEvent?) {
if let touch = panningTouch {
if touches.contains(touch) {
panningTouch = nil
}
}
if let touch = padTouch {
if touches.contains(touch) || event?.touchesForView(view)?.contains(touch) == false {
padTouch = nil
controllerStoredDirection = float2(0.0)
}
}
}
override func touchesCancelled(touches: Set<UITouch>?, withEvent event: UIEvent?) {
commonTouchesEnded(touches!, withEvent: event)
}
override func touchesEnded(touches: Set<UITouch>, withEvent event: UIEvent?) {
commonTouchesEnded(touches, withEvent: event)
}
i followed apple fox example for moving with touch and in my viewcontroller
func gestureRecognizer(gestureRecognizer: UIGestureRecognizer, shouldRecognizeSimultaneouslyWithGestureRecognizer otherGestureRecognizer: UIGestureRecognizer) -> Bool {
return true
}
func walkGestureRecognized(gesture: UIPanGestureRecognizer) {
if gesture.state == UIGestureRecognizerState.Ended || gesture.state == UIGestureRecognizerState.Cancelled {
gesture.setTranslation(CGPointZero, inView: self.view)
}
}
func renderer(aRenderer: SCNSceneRenderer, updateAtTime time: NSTimeInterval) {
//get walk gesture translation
let translation = walkGesture.translationInView(self.view)
//create impulse vector for hero
let angle = heroNode.presentationNode.rotation.w * heroNode.presentationNode.rotation.y
var impulse = SCNVector3(x: max(-1, min(1, Float(translation.x) / 50)), y: 0, z: max(-1, min(1, Float(-translation.y) / 50)))
impulse = SCNVector3(
x: impulse.x * cos(angle) - impulse.z * sin(angle),
y: 0,
z: impulse.x * -sin(angle) - impulse.z * cos(angle)
)
heroNode.physicsBody?.applyForce(impulse, impulse: true)
let scene = gameView.scene!
let direction = characterDirection()
let groundNode = character.walkInDirection(direction, time: time, scene: scene, groundTypeFromMaterial:groundTypeFromMaterial)
setting character position and direction....
private func characterDirection() -> float3 {
let controllerDirection = self.controllerDirection()
var direction = float3(controllerDirection.x, 0.0, controllerDirection.y)
if let pov = gameView.pointOfView {
let p1 = pov.presentationNode.convertPosition(SCNVector3(direction), toNode: nil)
let p0 = pov.presentationNode.convertPosition(SCNVector3Zero, toNode: nil)
direction = float3(Float(p1.x - p0.x), 0.0, Float(p1.z - p0.z))
if direction.x != 0.0 || direction.z != 0.0 {
direction = normalize(direction)
}
}
return direction
}
there are actually two scenes called in view controller class one is empty scene called for mapNode as hereoNode and other is character sceneNode
let scene = SCNScene()
scene.rootNode.addChildNode(heroNode)
let personScene = SCNScene(named: "game.scnassets/person.scn")!
personNode = personScene.rootNode.childNodeWithName("person", recursively: true)
personNode?.position = SCNVector3(x:4.5,y:0,z:25)
node.addChildNode(personNode)
scene.rootNode.addChildNode(character.node)
i am updating my question with some more details as you can see in this screen shot image i m attatching here enter image description here i want to move this fox in map with touch but it is not working it just jump and go out from map when i touch .....plz someone tell me where is my fault in code