【Unity3D自學記錄】滑鼠移動三維物體

建立一個指令碼，如下：

using UnityEngine;using System.Collections;public class OnMouse : MonoBehaviour {    IEnumerator OnMouseDown()    {        Vector3 screenSpace = Camera.main.WorldToScreenPoint(transform.position);//三維物體座標轉螢幕座標        //將滑鼠螢幕座標轉為三維座標，再算出物體位置與滑鼠之間的距離        Vector3 offset = transform.position - Camera.main.ScreenToWorldPoint(new Vector3(Input.mousePosition.x, Input.mousePosition.y, screenSpace.z));        print("down");        while (Input.GetMouseButton(0))        {            //print("button0");            Vector3 curScreenSpace = new Vector3(Input.mousePosition.x, Input.mousePosition.y, screenSpace.z);            Vector3 curPosition = Camera.main.ScreenToWorldPoint(curScreenSpace) + offset;            transform.position = new Vector3(curPosition.x, transform.position.y, transform.position.z);            yield return new WaitForFixedUpdate();//這個很重要，迴圈執行        }    }  }

將這個指令碼賦給移動的物體就可以了