gistfile1.txt

using UnityEngine;
using System.Collections;

public class Move_A : MonoBehaviour {
	
	// Use this for initialization
	void Start () {

	}

	public float speed_a = 0.1f;
	Rect _rect = new Rect(300,0,300,1000);
	// Update is called once per frame
	void Update () {
		GameObject obj1 = GameObject.Find("Player");

		if (Input.touchCount > 0) {
			Touch _touch = Input.GetTouch(0);
			Vector2 newVec = new Vector2(_touch.position.x,Screen.height - _touch.position.y);

			if(newVec.x >= _rect.xMin && newVec.x < _rect.xMax 
			   && newVec.y >= _rect.yMin && newVec.y < _rect.yMax){

				obj1.transform.Translate(speed_a,0,0);
			}
		}
	}
}