Object follows finger

Unity Engine
,
1

hey guys, I want to move the object with my finger. Code is as shown below. But it doesnt work properly. What is the problem??

var buttonForSFX: GUITexture;

if (iPhoneInput.touchCount > 0  buttonForSFX.HitTest(iPhoneInput.GetTouch(0).position))
	{
		if (iPhoneInput.GetTouch(0).phase == iPhoneTouchPhase.Moved)
		{
			if(iPhoneInput.GetTouch(0).position.x <= 338  iPhoneInput.GetTouch(0).position.x >= 127)			
			buttonForSFX.transform.position.x = iPhoneInput.GetTouch(0).position.x;
			print("touch position" + iPhoneInput.GetTouch(0).position.x);
			print("button position" + buttonForSFX.transform.position.x);
		}		
	}
2

the positions of iPhoneTouch and the game object are in different type, may be casting is needed, but how to do so ?

3

The position of the touch is reported in screen/pixel coordinates. To convert these to world coordinates, use Camera.ScreenToWorldPoint.