unity项目总结方法2

4. 测量距离

Ray ray=Camera.main.ScreenPointToRay(Input.mousePosition);

                   if(Input.GetMouseButton(0))

                   {

if(Physics.Raycast(ray,out hit,1000))      

                            {

                                     if(cejupos1== Vector3.zero)

                                         cejupos1 = hit.point;

                                               cejupos2= hit.point;

                                               lineRenderer.SetPosition(0,cejupos1);

                                               lineRenderer.SetPosition(1,cejupos2);

                                               lblceju.GetComponent<UILabel>().text="长度为："+Vector3.Distance(cejupos1,cejupos2).ToString("#0.00")+"米";

                             }

                     }

                   else

                   {

                            cejupos1= Vector3.zero;

                                    

                   }

5.      复原场景

（1）       记录场景物体位置

GameObject[]diaoGuis=GameObject.FindGameObjectsWithTag("Cf_diaogui1");

       StringBuilder bulid=new StringBuilder();

string oName=obj.transform.name;

bulid.Append(oName+",");

float Px=obj.transform.position.x;

bulid.Append(Px+",");

………………..

（2）       复原

string ss=System.Text.Encoding.UTF8.GetString(www.bytes);

string[] chas=ss.Split(new char[]{','});

 while(true)

{

                               

    if(index>=chas.Length-1)

    {

             break;

    }

                               

             stringasset="Prefab/chufang/"+chas[index];

floatx=float.Parse(chas[index+1]);

       float y=float.Parse(chas[index+2]);

………………

GameObjectob= = (GameObject)Instantiate(Resources.Load(asset),pos,Quaternion.Euler(rot));

ob.transform.localScale= sca;

 index+=10;

}