Unity3d实现Android滑动屏幕移动3D物体

using UnityEngine;
using System.Collections;

public class TestInput : MonoBehaviour {

public float speed = 0.1F;

void Update()
{

if (Input.touchCount > 0 && Input.GetTouch(0).phase == TouchPhase.Moved)
{

Vector2 touchDeltaPosition = Input.GetTouch(0).deltaPosition;
transform.Translate(touchDeltaPosition.x * speed,0f, touchDeltaPosition.y * speed);
}
}
}