彥霖 實驗筆記

// 該程式請套用在 Main Camera 上

using UnityEngine;
using System.Collections;

public class MyCamera : MonoBehaviour {

    public Transform target; // 要觀看的目標，請從外部拉進來

    float temp;
    bool sw = false;

    void Update(){
        if(Input.touchCount >= 2){
            float temp2 = Vector2.Distance (Input.GetTouch (0).position, Input.GetTouch (1).position);
            float cameraScale = temp2 - temp;
            temp = temp2;
            if(sw){
                transform.localPosition = Vector3.MoveTowards (transform.position, target.position, cameraScale * Time.deltaTime / 2);
            }
            sw = true;
        }else{
            sw = false;
        }
    }
}