Unity 等比映射小地图 - 纳金网

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class MiniMap : MonoBehaviour {
/// <summary>
/// 大地型对象
/// </summary>
public GameObject Plane;
/// <summary>
/// 玩家对象
/// </summary>
public GameObject Player;
/// <summary>
/// 小地图贴图
/// </summary>
public Texture MapTexture;
/// <summary>
/// 小地图玩家贴图
/// </summary>
public Texture PlayerTexture;
/// <summary>
/// 大地型宽度
/// </summary>
private float MaxMapWidth;
/// <summary>
/// 大地型高度
/// </summary>
private float MaxMapHeight;
/// <summary>
/// 玩家在小地图的位置宽度
/// </summary>
private float MinMapWidth;
/// <summary>
/// 玩家在小地图的位置高度
/// </summary>
private float MinMapHeight;
/// <summary>
/// 大地图默认宽度
/// </summary>
private float MaxMapRealyWidth;
/// <summary>
/// 大地图默认高度
/// </summary>
private float MaxMapRealyHeight;
/// <summary>
/// 玩家当前在地图中的宽度
/// </summary>
private float PlayerInMapWidth;
/// <summary>
/// 玩家当前在地图中的高度
/// </summary>
private float PlayerInMapHeight;
private void Start()
{
MaxMapRealyWidth = Plane.GetComponent<MeshFilter>().mesh.bounds.size.x;
MaxMapRealyHeight = Plane.GetComponent<MeshFilter>().mesh.bounds.size.z;
//得到大地图高度缩放地理
float scal_z = Plane.transform.localScale.z;
MaxMapRealyHeight = MaxMapRealyHeight * scal_z;
//得到大地图高度缩放地理
float scal_x = Plane.transform.localScale.x;
MaxMapRealyWidth = MaxMapRealyWidth * scal_x;
Check();
}
private void FixedUpdate()
{
Check();
}
private void OnGUI()
{
GUI.DrawTexture(new Rect(Screen.width - MapTexture.width/4, 0, MapTexture.width/4, MapTexture.height/4), MapTexture);
GUI.DrawTexture(new Rect(MinMapWidth, MinMapHeight, 20, 20), PlayerTexture);
}
void Check()
{
//根据比例计算小地图“主角”的坐标
MinMapWidth = (MapTexture.width * Player.transform.position.x/ MaxMapRealyWidth) + ((MapTexture.width /4 / 2) - (20 / 2)) + (Screen.width - MapTexture.width/4);
MinMapHeight = MapTexture.height/4 - ((MapTexture.height/4 * Player.transform.position.z / MaxMapRealyHeight) + (MapTexture.height / 4/ 2 + 30));
}
}

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