Unity 通过NGUI 完成单摄像机 制作地图

 1 using UnityEngine;
 2 using System.Collections;
 3 
 4 public class MiniMap : MonoBehaviour 
 5 {
 6     public GameObject point;
 7     UISprite Map;
 8     private GameObject hero; //主角
 9     private float miniMapScleRatio;//地图与实际地形的比例
10     private bool get = true;
11     // Use this for initialization
12     void Start()
13     {
14         Map = Global.FindChild<UISprite>(transform, "MiniMap");//找到地图 得到精灵
15     }
16     // Update is called once per frame
17     void Update () {
18 
19         if (GameObject.FindGameObjectWithTag("Player")!=null && get)
20         {
21             //获取地形
22             if (GameObject.FindObjectOfType<Terrain>())
23                 Map.transform.localScale = new Vector3(1, 1, 1);
24             hero = GameObject.FindGameObjectWithTag("Player");
25             GameObject terrain = GameObject.Find("Terrain");
26             Terrain script = terrain.GetComponent<Terrain>();
27             //获取地图与实际地形的比例
28             miniMapScleRatio = (float)Map.transform.localScale.x / script.terrainData.size.x;
29             get = !get;
30         }
31         
32         if (hero && point && Map)
33         {
34             //代表人物的箭头的角度始终为 绕Z轴旋转 差多少自己调  
35             point.transform.rotation = Quaternion.Euler(0, 0, -hero.transform.rotation.eulerAngles.y - 90);
36             //地图移动的像素 具体算法 
37             Map.transform.localPosition = new Vector3()
38             {
39                 x = -hero.transform.position.x * miniMapScleRatio * Map.localSize.x//图片大小
40                 ,
41                 y = -hero.transform.position.z * miniMapScleRatio * Map.localSize.y
42                 ,z = 0
43             };
44         }
45     }
46 }