using UnityEngine;using System.Collections;public class CreateMap : MonoBehaviour {    protected GameObject plane;    protected GameObject cube;    protected float mapWidth;    protected float mapHeight;    protected float widthCheck;    protected float heightCheck;    protected float mapCube_x=0;    protected float mapCube_y=0;    public Texture map;    public Texture map_cube;    // Use this for initialization    void Start () {        plane =GameObject.Find("Plane");        cube=GameObject.Find("Cube");        float size_x=plane.GetComponent<MeshFilter>().mesh.bounds.size.x; //默认宽度        float scale_x=plane.transform.localScale.x; //默认缩放比例        float size_z=plane.GetComponent<MeshFilter>().mesh.bounds.size.z;        float scale_z=plane.transform.localScale.z;        //原始宽度*缩放比例=实际宽度        mapWidth=size_x*scale_x;        mapHeight=size_z*scale_z;        widthCheck =mapWidth/2;        heightCheck =mapHeight/2;        check();    }    void check()    {        float x=cube.transform.position.x;        float z=cube.transform.position.z;        if(x>=widthCheck)        {            x=widthCheck;        }        if(x<=-widthCheck)        {            x=-widthCheck;        }        if(z>=heightCheck)        {            z=heightCheck;        }        if(z<=-heightCheck)        {            z=-heightCheck;        }        cube.transform.position=new Vector3(x,cube.transform.position.y,z);        //小地图主角的坐标        mapCube_x=(map.width/mapWidth*x)+((map.width/2)-(map_cube.width/2))+(Screen.width-map.width);        mapCube_y=map.height-((map.height/mapHeight *z )+(map.height/2));    }    // Update is called once per frame    void Update () {        if(Input.GetKey(KeyCode.W) || Input.GetKey(KeyCode.UpArrow))        {            cube.transform.Translate(Vector3.forward*Time.deltaTime *5);            check();        }        if(Input.GetKey(KeyCode.S) || Input.GetKey(KeyCode.DownArrow))        {            cube.transform.Translate(Vector3.forward * (-Time.deltaTime) *5);            check();        }    }    void OnGUI()    {        GUI.DrawTexture(new Rect(Screen.width-map.width,0,map.width,map.height),map);        GUI.DrawTexture(new Rect(mapCube_x,mapCube_y,map_cube.width,map_cube.height),map_cube);    }}