【Uinity】关于鼠标指针的管理（以单例模式实现）

在游戏过程中，我们往往在面对不同的情景的时候会使用不同的鼠标图标，比如当鼠标放在npc上时鼠标的图标会变，实现这个其实很简单，只需将所有鼠标图标导入，通过以下方法即可实现。

using UnityEngine;using System.Collections;public class CursorManager : MonoBehaviour {    public static CursorManager _instance;    public Texture2D cursor_normal;    public Texture2D cursor_npc_talk;    public Texture2D cursor_attack;    public Texture2D cursor_lockTarget;    public Texture2D cursor_pick;    private Vector2 hotspot = Vector2.zero;    private CursorMode mode = CursorMode.Auto;    void Start() {        _instance = this;    }    public void SetNormal() {        Cursor.SetCursor(cursor_normal, hotspot, mode);    }    public void SetNpcTalk() {        Cursor.SetCursor(cursor_npc_talk, hotspot, mode);    }    public void SetAttack() {        Cursor.SetCursor(cursor_attack, hotspot, mode);    }    public void SetLockTarget() {        Cursor.SetCursor(cursor_lockTarget, hotspot, mode);    }}