Unity3D ----- 制作信息滚动提示（NGUI）

先上效果图:



我是用触发器做的。在信息滚动区的上方放了一个触发器，如上图所示，然后利用触发函数，在信息框触发事件时消除，并实例新的对话框。

挂在聊天框父物体的脚本：

using UnityEngine;
using System.Collections;

public class BGController : MonoBehaviour {

public GameObject chatPre;     // 聊天预设

private UIGrid grid;
private GameObject[] talks = new GameObject[4];

void Awake()
{
grid = transform.GetComponent<UIGrid>();
CreateCells();
}
private void CreateCells()
{
grid.maxPerLine = 1;
grid.cellWidth = Global.CWidth;
grid.cellHeight = Global.CHeight;

for (int i = 0; i < talks.Length; i++)
{
GameObject go = Instantiate(chatPre)as GameObject;
go.transform.SetParent(this.transform);               // 设置父物体
go.transform.localScale = Vector3.one;
grid.pivot = UIWidget.Pivot.Center;
grid.AddChild(go.transform,true);

CellModel m = CellModel.Create("系统：",i.ToString());
Cell c = go.GetComponent<Cell>();
c.Model = m;

talks[i] = go;
}
}

// 创建新的对话，需要相应的对话接口
public void AddNewCell()
{
GameObject go = Instantiate(chatPre)as GameObject;
go.transform.SetParent(transform);
go.transform.localPosition = new Vector3(0,-45,0);
go.transform.localScale = Vector3.one;
CellModel m = CellModel.Create(System.DateTime.Now.Day.ToString(),System.DateTime.Now.ToString());
Cell c = go.GetComponent<Cell>();
c.Model = m;
}
}

挂在cell预设体上的脚本：

using UnityEngine;
using System.Collections;

public class Cell : MonoBehaviour {

private BGController bg;
private Rigidbody rig;

private CellModel model;

public UILabel title;
public UILabel chat;

public CellModel Model {
get {
return model;
}
set {
model = value;
UpdateChatView();
}
}

void Awake()
{
bg = GameObject.FindGameObjectWithTag("Container").GetComponent<BGController>();
rig = GetComponent<Rigidbody>();
rig.useGravity = false;

//        title.text = "";
//        chat.text = "";
}

void Update ()
{
transform.localPosition += transform.up * Global.moveSpeed * Time.deltaTime;
//        UpdateChatView();
}

void OnTriggerEnter(Collider other)
{
if(other.transform.name.Equals("Trigger"))
{
//            Debug.Log(other.transform.name);
Destroy(this.gameObject);
bg.AddNewCell();
}
}
// 更新聊天框内容（可加接口）
private void UpdateChatView()
{
title.text = model.title;
chat.text = model.chat;
}
}

有两个全局脚本（CellModel和Global）

CellModel存放了cell的模型

using UnityEngine;
using System.Collections;

public class CellModel {

public string title;
public string chat;

private CellModel(){}

private CellModel(string title,string chat)
{
this.title = title;
this.chat = chat;
}

public static CellModel Create(string title,string chat)
{
return new CellModel(title,chat);
}
}

Global存放全局静态变量

using UnityEngine;
using System.Collections;

public class Global {

public static float moveSpeed = 20f;

public static float CWidth = 270;
public static float CHeight = 30;

}