Make an object move in the direction of touch

Hello, I'm trying to make a custom joystick type of thing for my game and I'm stumped. What I'm doing is making it to where it takes the original coordinates of where you're finger is first placed and getting the offsets of where it's moved and attempting the move the object through that, but it's not working and I can't figure out why. Any answer is greatly appreciated! Thank you!

 var setpos = 0;
 //var oldmpos : Vector2;
 var touchDeltaPosition : Vector2;
 var oldmpose : Vector2;
 function Update () {
 for(var i = 0; i < Input.touchCount;++i){
 if(Input.GetTouch(i).position.x < Screen.width / 2){
 /*
 if( Input.touchCount > 0 && Input.GetTouch(i).phase == TouchPhase.Began && Input.GetTouch(i).phase != TouchPhase.Moved && Input.GetTouch(i).phase != TouchPhase.Ended){
 oldmpose  = Input.GetTouch(i).deltaPosition;
 }else{
 oldmpose.x = 0;
 oldmpose.y = 0;
 }*/
 if(Input.GetTouch(i).phase == TouchPhase.Ended){
 touchDeltaPosition.x = 0;
 touchDeltaPosition.y = 0;
 setpos = 0;
 oldmpose.x = 0;
 oldmpose.y = 0;
 }
 
 if (Input.touchCount > 0 && Input.GetTouch(i).phase == TouchPhase.Moved || Input.GetTouch(i).phase == TouchPhase.Stationary) {            
 if(setpos == 0){
 oldmpose  = Input.GetTouch(i).deltaPosition;
 setpos = 1;
 }
 touchDeltaPosition = Input.GetTouch(i).deltaPosition;
 }else{
 touchDeltaPosition.x = 0;
 touchDeltaPosition.y = 0;
 
 }
 
         
         if(touchDeltaPosition.x > oldmpose.x ){
             transform.Translate(Vector3.right * 0.10);
             }
             if(touchDeltaPosition.y > oldmpose.y  ){
             transform.Translate(Vector3.forward * 0.10);
             }
             if(touchDeltaPosition.y < oldmpose.y ){
             transform.Translate(Vector3.forward * -0.10);
             }
             if(touchDeltaPosition.x < oldmpose.x ){
             transform.Translate(Vector3.right * -0.10);
             }
             
 }
 }
 }