不能从另一个C＃脚本统一访问变量

Question

I'm working a unity 3d game and I've ran into a problem:

I have two boxes called breakableBox and breakableBox_2 . When the player collides with them, they add to the player's score variable playerScore and the box hides itself. Here's the code that both of the boxes use:

using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour
{
    public static int playerScore;

    public Renderer rend;

    void Start()
    {
        rend = GetComponent<Renderer>();
        rend.enabled = true;
    }

    void OnTriggerEnter(Collider other)
    {
        rend.enabled = false;
        playerScore++;
    }



}

And then in order to show the score, I have this script attached to the player camera:

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

public class Points : MonoBehaviour {
    int score = ExampleClass.playerScore;
    void OnGUI()
    {
        GUIStyle style = new GUIStyle(GUI.skin.button);
        style.fontSize = 24;
        GUI.Label(new Rect(1, 1, 150, 30), score.ToString() + " points", style);
    }
}

However, the score stays at zero, even when in the console I can see that it added the points to the variable. If anyone knows how to help me fix this, that would be great.

Answer 1

You are not updating the score int in your Points class, try this

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

public class Points : MonoBehaviour {

    void OnGUI()
    {
        int score = ExampleClass.playerScore;
        GUIStyle style = new GUIStyle(GUI.skin.button);
        style.fontSize = 24;
        GUI.Label(new Rect(1, 1, 150, 30), score.ToString() + " points", style);
    }
}

Edit: as @MXD mentioned in the comment, it's better to not update values in OnGUI and do it in Update() Instead [or FixedUpdate() since your score system is physics reliant].