Adding High Score to Game menu from existing code?

Questions & Answers
1

Hey i have read through a bunch of similar questions asked but I am having trouble applying it to my existing code. I would like my high score to be displayed on the game menu but I don’t know how to extract the highest score from the score code i am using now. I know i have to set player prefs and compare high score to regular score but i am having trouble wrapping my head around it.
My score code is as follows:

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

public class Score : MonoBehaviour
{
    public static int scoreValue = 0;
    Text score;
    // Start is called before the first frame update
    void Start()
    {
        score = GetComponent<Text>();
        scoreValue = 0;
    }

    // Update is called once per frame
    void Update()
    {
        score.text = "Score: " + scoreValue;
    }


 
}

Then I have that linked to when a game object (platform) gets destroyed i add 10 points. not sure if thats important but that code is as follows:

sing System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;

public class Eraser1 : MonoBehaviour
{
    // Start is called before the first frame update

    void OnTriggerEnter2D(Collider2D o)
    {

        if (o.tag == "turf1")
        {
            Score.scoreValue += 10;
            Destroy(o.gameObject);
        }
    }

    // Update is called once per frame
    void Update()
    {
      
    }
}

Any help is greatly appreciated.

2

I would make your Score class into a singleton, then let your Eraser (or whatever is giving points) call into it. The singleton will deal with the score, highscore, saving, etc. Here is an example:

–
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;

/// <summary>
/// Just place this in your scene somewhere and let objects send it points via UpdateScore method
/// </summary>
public sealed class ScoreManager : MonoBehaviour
{
    // Simple singleton pattern
    static ScoreManager instance;
    public static ScoreManager Instance
    {
        get
        {
            if (instance == null)
            {
                instance = FindObjectOfType<ScoreManager>();
            }

            return instance;
        }
    }

    [SerializeField] Text highScoreText;
    [SerializeField] Text currentScoreText;

    int currentScore;
    public int CurrentScore
    {
        get { return currentScore; }
        private set
        {
            currentScore = value;
            UpdateScoreText();
        }
    }

    // When the game launches, set the high score
    private void Awake()
    {
        SetHighScoreText();
    }

    // Just for testing - should delete the entire method
    // Uncomment to use this as a test
    //private void Update()
    //{
    //    if (Input.GetKeyDown(KeyCode.Space))
    //    {
    //        UpdateScore(10);
    //    }
    //    else if (Input.GetKeyDown(KeyCode.Return))
    //    {
    //        CheckForNewHighScore();
    //    }
    //}


    // Call this method to add more points (which will auto update the text for you)
    // Called like this ScoreManager.Instance.UpdateScore(10); from wherever points are given
    public void UpdateScore(int delta)
    {
        CurrentScore += delta;
    }


    private void UpdateScoreText()
    {
        currentScoreText.text = CurrentScore.ToString();
    }


    private void SetHighScoreText()
    {
        // We try to find a highscore, if there isn't one, we default to 0
        int highScore = PlayerPrefs.GetInt("HighScore", 0);

        highScoreText.text = highScore.ToString();
    }


    // Game ended - call this to set new highscore if there is one (and save it)
    public void CheckForNewHighScore()
    {
        int highScore = PlayerPrefs.GetInt("HighScore", 0);
        if (currentScore > highScore)
        {
            PlayerPrefs.SetInt("HighScore", currentScore);
            PlayerPrefs.Save();

            // Update high score text
            SetHighScoreText();
        }
    }
}

–

No need to use an update method for scores. Just let the property deal with it when its updated. This makes sure that whenever a score gets updated, so does the text.

Hope this helps a little.