在Unity3d中将值传递给一个脚本传递给另一个脚本

Question

Currently, I'm trying to add / subtract value from one script to another. I wanted script one to add +125 health to script two but don't know how. There is no gameobject involved in this scenarios.

Script one is

using UnityEngine;
using System.Collections;

public class AddHealth : MonoBehaviour {

    int health = 10;

    public void ChokeAdd()

    {
        AddHealthNow();
    }

    public void AddHealthNow()
    {
        health += 125;
        Debug.Log("Added +125 Health");
    }
}

Script two is

using UnityEngine;
using UnityEngine.UI;
using System.Collections;

namespace CompleteProject
{
    public class DataManager : MonoBehaviour

    {
        public static int depth;        
        public Text BOPPressureText;
        int health = 20;

        void Awake ()

        {
            depth = 0 ;
        }

        void Update ()
        {
            BOPPressureText.text = depth + 7 * (health) + " psi ";
        }
    }
}

Answer 1

If you're trying to add health to your second script, declare your health field as public. So that you can access its value in your first script.

public int health;

But I wouldn't do stuff like that. Expose this field by a property like:

public int Health 
{
 get 
   {
    return this.health;
   }
 set 
   {
    this.health = value;
   }
}

by default the health will be declared as

private int health;

Other scripts can't access private fields. Also you need a reference to your second script. You can access this via:

public DataManager data;

You've to assign your second object into this field in your Unity Editor. Then This way, you can access the field health by calling data.health += 125 in your first script.

I don't know the specific thing in Unity, but I think you can also call your script by:

DataManager data = GetComponent<DataManager>();
data.health += 125;

Other method to get your other script is call it like that in your first script:

var secondScript = GameObject.FindObjectOfType(typeof(DataManager)) as DataManager;
secondScript.health += 125;