[Unity3d]unity+asp.net实现动态搜索加载模型并且能够实现模型拖动缩放的功能

实现的功能要求：用户在文本框中输入要查询的模型型号(包括模糊搜索)，服务器返回数据，然后客户端解析数据并且动态的生成数据列表，点击列表从服务器端下载打包的assetbundle模型，加载到场景，并且点击其他的，确保场景中每次只显示一个模型，而且该模型能够缩放旋转。

Code：

搜索功能框：



在搜索框中输入，然后向服务器端发送请求，服务器端返回数据，客户端解析数据，做出列表



点击列表之后，会动态加载model



创建在这个Model对象下：

case "开始搜索":

//执行查询
searchText = GameObject.Find("Input").GetComponentInChildren<UILabel>().text;
print(searchText);
if(!string.IsNullOrEmpty(searchText))
{
WWWForm formSearch = new WWWForm();
formSearch.AddField("type",searchText);
WWW www = new WWW(searchUrl,formSearch);
yield return www;
if (www.error != null)
{
Debug.LogError(www.error);
}
else
{
print(www.text);
if(www.text!="NULL")
{
if (www.isDone)
{
int posY = 0;
//父物体：panel、sprite
//GameObject gobj = CreateEmptyObject(name, showpanel);
gobj.transform.localPosition = new Vector3(0, 0, 50);
gobj.transform.localScale = new Vector3(1, 1, 1);

//生成生成三级导航
////UIScrollBar scrollbar = NGUITools.AddChild<UIScrollBar>(obj);
//panel
UIDraggablePanel panel = NGUITools.AddChild<UIDraggablePanel>(gobj);
panel.transform.localPosition = new Vector3(500 + 140 - Screen.width, 0, 0);
panel.transform.localScale = new Vector3(1, 1, 1);
panel.scale = new Vector3(0, 1, 0);
panel.GetComponent<UIPanel>().clipping = UIDrawCall.Clipping.SoftClip;
//panel.GetComponent<UIPanel>().clipRange = new Vector4(0, 0, 280, 800);
panel.GetComponent<UIPanel>().clipSoftness = new Vector2(1, 1);

//sprite
UISprite texture = NGUITools.AddSprite(gobj, atlas, "Sprite (MID_navigation_70%)");             //名字
//texture.pivot = UIWidget.Pivot.Top;
texture.transform.localPosition = new Vector3(500 + 140 - Screen.width, 0, 0);
//texture.transform.localScale = new Vector3(280, 800, 1);
texture.alpha = 0.5f;
//panel-grid
UIGrid grid = NGUITools.AddChild<UIGrid>(panel.gameObject);

grid.transform.localPosition = new Vector3(0, texture.transform.localScale.y / 2, -20);
grid.transform.localScale = new Vector3(1, 1, 1);
grid.arrangement = UIGrid.Arrangement.Vertical;
grid.cellHeight = 40;
grid.cellWidth = 505;

JsonData jd = JsonMapper.ToObject(www.text);
for (int i = 0; i < jd.Count; i++)
{
//根据解析的Name添加二级导航
//print("Name:" + jd[i]["Name"]);
//print("url："+jd[i]["Url"]);
//grid-item
GameObject gobject = (GameObject)Instantiate(prefabItem1, new Vector3(0, 0, 0), Quaternion.identity);
gobject.GetComponentInChildren<PrefbLoadmodel>().modelname = jd[i]["Type"].ToString(); //传入模型的名字
gobject.transform.parent = grid.transform;
gobject.transform.localPosition = new Vector3(0, 0, 0);
gobject.transform.localScale = new Vector3(1, 1, 1);
//gobject.GetComponent<UIDragPanelContents>().draggablePanel = panel;
gobject.GetComponentInChildren<UILabel>().text = jd[i]["Name"].ToString();
gobject.GetComponentInChildren<UISprite>().alpha = 0.5f;
grid.repositionNow = true;
//技术参数
//print("Telimgurl:" + jd[i]["Telimgurl"]);
//规格
//print("Imgurl:" + jd[i]["Imgurl"]);

}
posY = 40 * jd.Count;
if (posY > 400)
{
posY = 400;
}
texture.transform.localScale = new Vector3(505, posY + 10, 1);
panel.GetComponent<UIPanel>().clipRange = new Vector4(0, 0, 505, posY + 10);  //设置左上角坐标和宽高
}
}
}
}
break;

PrefbLoadmodel.cs: 这个类放在预设的按钮下，作用是点击加载模型

using UnityEngine;
using System.Collections;
using LitJson;

public class PrefbLoadmodel : MonoBehaviour {

static string ipStr = "http://ueige123.oicp.net/handler/";
string searchText = null;
//产品中心导航链接
private string productUrl = ipStr + "Search.ashx";

Transform model;

public string modelname=null;
// Use this for initialization
void Start () {
model = GameObject.Find("Model").transform;

}

// Update is called once per frame
void Update () {

}

void OnClick()
{
print("modelName:---"+modelname);

isLoad(modelname+"(Clone)");  //将其他的隐藏

}

void isLoad(string name)
{
if(model.FindChild(name))
{
for (int i = 0; i < model.childCount; i++)
{
//当鼠标点击对象的名字与Modell中子对象名字不同相同时，设置激活状态：false
if (model.GetChild(i).name != name)
{
model.GetChild(i).gameObject.SetActive(false);
}
else
{
model.GetChild(i).gameObject.SetActive(true);
}
}
print("存在");
}
else
{
print("不存在");
for (int i = 0; i < model.childCount; i++)
{

model.GetChild(i).gameObject.SetActive(false);
}
searchText = this.gameObject.GetComponentInChildren<UILabel>().text;
StartCoroutine(SendName(searchText));
}
}

IEnumerator SendName(string name)
{
WWWForm form = new WWWForm();
print("name:"+name);
form.AddField("type",name);
WWW resumewww = new WWW(productUrl,form);
yield return resumewww;
//记录加载时出现的错误信息
if (resumewww.error != null)
{
print("错误:" + resumewww.error);
}
else
{
print(resumewww.text); //服务器端返回的数据
JsonData jd = JsonMapper.ToObject(resumewww.text);
if (resumewww.isDone)
{
string url1= jd[0]["Url"].ToString();
string type = jd[0]["Type"].ToString();
modelname = type;
WWW download = WWW.LoadFromCacheOrDownload(url1,1);
yield return download;

GameObject obj = Instantiate(download.assetBundle.mainAsset)as GameObject;
obj.transform.parent = model;
obj.transform.localPosition = new Vector3(4,0,2);
obj.transform.localScale = new Vector3(1000, 1000,1000);

obj.AddComponent<DragModel>();  //动态添加拖动组件
download.assetBundle.Unload(false);
}
}
}
}

DragModel.cs:这个类是模型动态的添加的组件，作用是能够鼠标旋转和缩放模型

using UnityEngine;
using System.Collections;

public class DragModel : MonoBehaviour {

private float x = 0.0f;
private float y = 0.0f;

private float xSpeed = 200.0f;
private float ySpeed = 200.0f;

private float zSpeed = 40f;

private float minDistence = 0;
private float maxDistence = 10;

void Update ()
{

if(Input.GetMouseButton(1))
{
x=Input.GetAxis("Mouse X") *xSpeed;

y=Input.GetAxis("Mouse Y") *ySpeed;

transform.Rotate(Vector3.up * -x *Time.deltaTime,Space.World);
transform.Rotate(Vector3.right * y *Time.deltaTime,Space.World);

}

else if(Input.GetAxis("Mouse ScrollWheel")!=0)
{
float ga = Input.GetAxis("Mouse ScrollWheel");
if(transform.position.z > minDistence && transform.position.z<maxDistence||transform.position.z<=minDistence && ga<0||transform.position.z>=maxDistence && ga>0)
{
transform.Translate(Vector3.forward*-ga*zSpeed*Time.deltaTime,Space.World);
}
}
}
}

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