iTween, Put on path & arrow keys

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Hello people

I am using iTween to put the camera on a path

but I want to control it with touch instead of a "Slider"...

Here is the what we have:

 using UnityEngine;
 using System.Collections;
 
 public class PutOnPathExample : MonoBehaviour{
     public Transform[] path;
     public float percentage;
     
     void OnGUI () {
         percentage=GUI.HorizontalSlider(new Rect(23,194,204,40),percentage,0,1);
         iTween.PutOnPath(gameObject,path,percentage);
         
         //You can cause the object to orient to its path by calculating a spot slightly ahead on the path for a look at target:
         transform.LookAt(iTween.PointOnPath(path,percentage+.05f));
     }
     
     void OnDrawGizmos(){
         iTween.DrawPath(path);
     }
 }

I have Also had luck mapping to my arrow keys for touch... So here is the script I am using for that:

 #pragma strict
 
 // Moves object according to finger movement on the screen
 
     var speed : float = 0.05;
     var nonSpeed : float = 0;
     
     function Update () {
         if (Input.touchCount > 0 && 
           Input.GetTouch(0).phase == TouchPhase.Moved) {
         
             // Get movement of the finger since last frame
             var touchDeltaPosition:Vector3 = Input.GetTouch(0).deltaPosition;
             
             // Move object across X plane
             transform.Translate (-touchDeltaPosition.x * speed,
             0,0);
             
             transform.Translate (-touchDeltaPosition.z * speed,
             0,0);
 
         
         }
     }

I know the scripts are C# & .js respectively ... but Any advice is helpful

Thanks for your time

~be

Answer 1

Best Answer

Answer by robertbu · Aug 20, 2014 at 05:57 PM

I'm away from my desktop, so I cannot test it, but here is some sample code in the right direction:

 public Transform[] path;
 public float percentage;
 public float speed = 0.1f;
 
 void Update () {
     if (Input.touchCount > 0) {
     
         Touch touch = Input.GetTouch(0);
         
         if (touch.phase == TouchPhase.Moved) {
             percentage += touch.deltaPosition.x * speed / Screen.height;
             percentage = Mathf.Clamp01(percentage);
             iTween.PutOnPath(gameObject,path,percentage);
             transform.LookAt(iTween.PointOnPath(path,percentage+.05f));
         }
     }
 }

I have no idea what the value of 'speed' should be. You'll have to experiment.
Note the division by Screen.height. This is a quick and dirty of normalizing the movement for different resolutions. You can use Screen.dpi as another way to handle the resolutions.
This is looking at the horizontal movement. It would take some changes for an arbitrary swipe.

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Bentoon · Aug 21, 2014 at 03:51 AM 0

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Thanks So much RobertBu for your fast attention. it means a lot! I will have to check this tomorrow when I am off shift...

Looking forward

~be

Bentoon · Aug 23, 2014 at 04:39 AM 0

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RobertBu, Once again you come to the rescue! I modded the script and it works I'm still not altogether sure how ; ) there are other elements. But NOW I can retrace and begin to really understand here is the code:

 using UnityEngine;
 using System.Collections;
 
 public class FlythroughCameraController1 : $$anonymous$$onoBehaviour {
     public Transform[] movePath;
     public Transform[] lookPath;
     public Transform lookTarget;
     public float percentage;
     //public Transform[] path;
     public float speed = 0.1f;
 
 
     private float redPosition = .16f;
     private float bluePosition = .53f;
     private float greenPosition = 1;
 //    private float purplePosition = 1.2;
     
     //gui styling
     public Font font;
     private GUIStyle style = new GUIStyle();
     
     void Start(){
         style.font=font;
     }
 
     void Update () {
         if (Input.touchCount > 0) {
             
             Touch touch = Input.GetTouch(0);
             
             if (touch.phase == TouchPhase.$$anonymous$$oved) {
                 percentage += touch.deltaPosition.x * speed / Screen.height;
                 percentage = $$anonymous$$athf.Clamp01(percentage);
                 //Robertbu    iTween.PutOnPath(gameObject,path,percentage);
                 iTween.PutOnPath(gameObject,movePath,percentage);
                 iTween.PutOnPath(lookTarget,lookPath,percentage);
                 transform.LookAt(iTween.PointOnPath(lookPath,percentage));
                 //transform.LookAt(iTween.PointOnPath(path,percentage+.05f));
             }
         }
     }
 
 
     void OnDrawGizmos(){
         iTween.DrawPath(movePath,Color.magenta);
         iTween.DrawPath(lookPath,Color.cyan);
         Gizmos.color=Color.black;
         Gizmos.DrawLine(transform.position,lookTarget.position);
     }
     
     void SlideTo(float position){
         iTween.Stop(gameObject);
         iTween.ValueTo(gameObject,iTween.Hash("from",percentage,"to",position,"time",2,"easetype",iTween.EaseType.easeInOutCubic,"onupdate","SlidePercentage"));    
     }
     
     void SlidePercentage(float p){
         percentage=p;
     }
 }

$$anonymous$$y only other question would be how - in the Update method, would I ilcude an "else if Left or Right Arrow key

     if(Input.Get$$anonymous$$ey($$anonymous$$eyCode.RightArrow))
     {
         something something
     }
     if(Input.Get$$anonymous$$ey($$anonymous$$eyCode.LeftArrow))
     {
         something something
     }

Thank you again! ~be

iTween, Put on path & arrow keys

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