fixed the problem

Question

problem fixed

Answer 1

//you need two round texture one for boundary are which is bigger then 2nd texture which will //be touch and drag for controlling

public class JoyStick : MonoBehaviour {

 public Texture areaTexture;
 public Texture touchTexture;
 public Vector2 joystickPosition = new Vector2( 135f,135f);
 public Vector2 speed = new Vector2(2,100);
 public float zoneRadius=100f;
 public float touchSize = 30;
 public float deadZone=20;
 public float touchSizeCoef=0;
 protected Vector2 joystickAxis;
 protected Vector2 joystickValue;
 public Vector2 joyTouch;
 private Vector2 _joystickCenter;
 [SerializeField]
 private Vector2 _smoothing = new Vector2(20f,20f);
 public Vector2 Smoothing {
     get {
         return this._smoothing;
     }
     set {
         _smoothing = value;
         if (_smoothing.x<0.1f){
             _smoothing.x=0.1f;
         }
         if (_smoothing.y<0.1){
             _smoothing.y=0.1f;    
         }
     }
 }
 private int _joystickIndex=-1;
 private bool _enaReset;
 private bool _enaZoom;
 
 void Start () {
     _joystickCenter = joystickPosition;
     _enaReset=false;
 }
 
 // Update is called once per frame
 void Update () {
         if (Application.platform == RuntimePlatform.IPhonePlayer || Application.platform == RuntimePlatform.Android) {
         foreach (Touch touch in Input.touches)
         {
             if (touch.phase == TouchPhase.Ended || touch.phase == TouchPhase.Canceled) {
                 if (_joystickIndex==touch.fingerId){
                     _joystickIndex=-1;
                     _enaReset=true;
                 }
             }
             
             if(_joystickIndex==touch.fingerId){
                 OnTouchDown(touch.position);
             }
             if (touch.phase == TouchPhase.Began) {
                 if (((Vector2)touch.position - _joystickCenter).sqrMagnitude < Mathf.Pow((zoneRadius+touchSizeCoef/2),2)){
                     _joystickIndex = touch.fingerId;
                 }
             }
         }
         
         UpdateJoystick();
         if(_enaReset){
             ResetJoystick();
         }
     }else{ 
         if (Input.GetButtonUp ("Fire1")) {
             _joystickIndex=-1;
             _enaReset=true;
         }
         if(_joystickIndex==1){
             OnTouchDown(Input.mousePosition);
         }
         if (Input.GetButtonDown ("Fire1") ) {
             if (((Vector2)Input.mousePosition - _joystickCenter).sqrMagnitude <Mathf.Pow( (zoneRadius+touchSizeCoef/2),2)){
                 _joystickIndex = 1;
                 
             }
             
         }
         if(_enaReset){
             ResetJoystick();
         }
         
         UpdateJoystick();
     
     }
     
 }
 

 
 
 private void UpdateJoystick(){ 
         if (joyTouch.sqrMagnitude>deadZone*deadZone){
             
             joystickAxis = Vector2.zero;
         if (Mathf.Abs(joyTouch.x)> deadZone){
                 joystickAxis = new Vector2( (joyTouch.x -(deadZone*Mathf.Sign(joyTouch.x)))/(zoneRadius-touchSizeCoef-deadZone),joystickAxis.y);
                 
             }else{
                 joystickAxis = new Vector2( joyTouch.x /(zoneRadius-touchSizeCoef),joystickAxis.y);
             
             }
         if (Mathf.Abs(joyTouch.y)> deadZone){

                 joystickAxis = new Vector2( joystickAxis.x,(joyTouch.y-(deadZone*Mathf.Sign(joyTouch.y)))/(zoneRadius-touchSizeCoef-deadZone));
             }else{
             
                 joystickAxis = new Vector2( joystickAxis.x,joyTouch.y/(zoneRadius-touchSizeCoef));    
             }
         
         }
         else{
             joystickAxis = new Vector2(0,0);
         }
     Vector2 realvalue = new Vector2(  speed.x*joystickAxis.x,speed.y*joystickAxis.y);
     joystickValue=realvalue;
     print(realvalue);

 }

 // Joystick move
 void OnTouchDown(Vector2 position){
         joyTouch  = new Vector2( position.x, position.y) - _joystickCenter;
         if ((joyTouch/(zoneRadius-touchSizeCoef)).sqrMagnitude > 1){
             joyTouch.Normalize();
             joyTouch *= zoneRadius-touchSizeCoef;
         }
     //print(joyTouch);
 }
 
 
 private void ResetJoystick(){
     if (joyTouch.sqrMagnitude>0.1){
         joyTouch = new Vector2( joyTouch.x - joyTouch.x*_smoothing.x*Time.deltaTime, joyTouch.y - joyTouch.y*_smoothing.y*Time.deltaTime);    
     }
     else{
         joyTouch = Vector2.zero;
         _enaReset=false;
     }
 }
 void OnGUI(){
         GUI.DrawTexture( new Rect(_joystickCenter.x -zoneRadius ,Screen.height- _joystickCenter.y-zoneRadius,zoneRadius*2,zoneRadius*2), areaTexture,ScaleMode.ScaleToFit,true);
         GUI.DrawTexture( new Rect(_joystickCenter.x+(joyTouch.x -touchSize) ,Screen.height-_joystickCenter.y-(joyTouch.y+touchSize),touchSize*2,touchSize*2), touchTexture,ScaleMode.ScaleToFit,true);
 }

}

Answer 2

Well would create a GUITexture. And then use something like this

var myButton : GUITexture = GetComponent(GUITexture); //Only if the script is attached to the GUITexture otherwise you'll have to assign it differently

function Update() {

if(Input.touchCount > 0 && Input.GetTouch(0).phase == TouchPhase.Began && myButton.HitTest(Input.GetTouch(0).position)) { // do stuff to accelerate //maybe something like this: Accelerate(); }

if(Input.touchCount > 0 && Input.GetTouch(0).phase == TouchPhase.Ended && myButton.HitTest(Input.GetTouch(0).position)) { // do stuff to decelerate //maybe something like this: Decelerate() } }

function Accelerate() { input = Mathf.Lerp(input, maxInput, Time.deltaTime); //you would need to assign all those variables }

function Decelerate() { input = Mathf.Lerp(input, 0, Time.deltaTime); //I'm not sure on this line }

So I didn't try out the code but this should be what you need.

fixed the problem

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