GameManager类

using System.Collections;
using System.Collections.Generic;
using UnityEngine;


public class GameManager : MonoBehaviour {


private static GameManager gm;

public static GameManager getGM{
get{
return gm;
}
}

public int level = 1;
public int HP = 100;

void Awake () {
gm = this;
}


public void addHP(int count){
HP = HP + count;
}
public void reduceHP(int count){
HP = HP - count;
}
}

在其他脚本中就可以调用GameManager里的方法

GameManager.getGM.addHP ();