How to access gameobject present in another scene [duplicate]

Answer 1

I do not believe there is a way to modify the context or objects of a scene that is not currently open.

public class GameResults {
   public static string finalText = "";
}

In your function where you are loading the scene, right before you call load scene you can access that text like so:

GameResults.finalText = "You Win!"; or GameResults.finalText = "You Lose!";

load your scene, and on your text object give it a script like this:

using UnityEngine;
using UnityEngine.UI;
public class ResultTextScript : MonoBehaviour
{
    public Text textResults;
    void Start() {
        textResults = getComponent<Text>();
        if(textResults != null) {
            textResults.text = GameResults.finalText;
        }
    }
}

There are other things you can use as well is, storing the game results in PlayerPrefs and loading the string or int you stored in PlayerPrefs preferences at the start of your end scene. This will help you avoid creating an unnecessary class or static variable.

So Like before you can do:

PlayerPrefs.SetString("GameResults", "You Win!"); or PlayerPrefs.SetString("GameResults", "You Lose!");

load your scene, and on your text object give it a script like this:

using UnityEngine;
using UnityEngine.UI;
public class ResultTextScript : MonoBehaviour
{
    public Text textResults;
    void Start() {
        textResults = getComponent<Text>();
        if(textResults != null) {
            textResults.text = PlayerPrefs.GetString("GameResults", "");
        }
    }
}

Answer 2

Better solution I came up with:

Make a script that sets a static string variable. This script must be in your Game scene and will hold the result.

public class ResultTextScript : MonoBehaviour
{
    public static string ResultText;

    void EndGame(){
    if (won){ //if won game
            ResultText = "You won!"
       }
       else //if lost game
       {
            ResultText = "You lost, try again another time!"
       }
       //Change scene with SceneManager.LoadScene("");
    }

}

Put this script on your result text in the end scene. This script will retrieve the result and display it.

Using UnityEngine.UI;

public class EndGameDisplayResult{

   Text text; 
   OnEnable(){
   Text.text = ResultTextScript.ResultText
   }
}

This way, it will set the text as soon as the new scene is loaded.

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Previous/alternative method:

If you already have the scene open, one option would be to add a script to the "You won!" text which holds a static variable with a reference to itself.

So like this.

public class ResultTextScript : MonoBehaviour
{
    public static ResultTextScript Instance;

    void Awake(){
        if (Instance == null)
            Instance = this;
    }
}

Then you can call the reference to that GameObject from anywhere in the other scripts, including between scenes.

Like this ResultTextScript.Instance

Note though that you cannot call the reference in the Awake method, as that is where the variable is initialized, you can use it after the Awake methods have been called though.

Basically

1. Add the ResultTextScript to your Text object in the 'End Scene'
2. Open the 'End Scene' from the 'Game Scene', for example with your SceneManager approach as you already do.
3. Ensure that the End Scene has loaded, then say in the script you wish to change the text gameObject go = ResultTextScript.Instance.gameObject