touch position

you can use Input.touches class for it

 using UnityEngine;
 using System.Collections;
 using System.Collections.Generic;
 
 using System;

 List touchPositions = new List();
 void Update() {
     if(Input.touchCount > 0) {
         touchPositions.Add( Input.touches[0].position)
     }
 }

you can convert Generic List to Array by using ToArray() Method of you List Variable

i don't understand it completely so could you show me how to do something like this`

 var pos1X = 0.0;
 var pos1Y = 0.0;
 var pos2X = 0.0;
 var pos2Y = 0.0;
 
 function Update () {
 //pos1X = the x value of the first touch if its x value is (> screen.width * 0.5)
 
 //pos1Y = the y value of the first touch
 
 //pos2X = the x value of the second touch
 
 //pos2Y = the y value of the second touch
 }

`