【Unity3D自学记录】Unity3D显示NPC名称

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using UnityEngine;

using System.Collections;



public class NPCName : MonoBehaviour {

//主角对象

private GameObject player;

//主摄像机对象

private Camera camera;

//NPC名称

private string name = "我是NPC";



void Start()

{

//根据Tag得到主角对象

player = GameObject.FindGameObjectWithTag("MainCamera");

camera = Camera.main;

}



void OnGUI()

{

//得到NPC头顶在3D世界中的坐标

Vector3 worldPosition = new Vector3(transform.position.x, transform.position.y + 0.5f, transform.position.z);

//根据NPC头顶的3D坐标换算成它在2D屏幕中的坐标

Vector2 position = camera.WorldToScreenPoint(worldPosition);

//得到真实NPC头顶的2D坐标

position = new Vector2(position.x, Screen.height - position.y);

//计算NPC名称的宽高

Vector2 nameSize = GUI.skin.label.CalcSize(new GUIContent(name));

//设置显示颜色为***

GUI.color = Color.red;

//绘制NPC名称

GUI.Label(new Rect(position.x - (nameSize.x / 2), position.y - nameSize.y, nameSize.x, nameSize.y), name);



}

}


http://blog.csdn.net/daijinghui512/article/details/38398033