How can change background when go to next state?

Unity Courses Talk
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#1

I tired to do that and this is my code

AdventureGame.cs

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

public class AdventureGame : MonoBehaviour
{

    [SerializeField] Text textComponent;
    [SerializeField] State startingState;

    State state;



    // Start is called before the first frame update
    void Start()
    {
        state = startingState;
        textComponent.text = state.GetStateStory();
    }




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





    private void manageState()
    {
        var nextStates = state.GetNextStates();
        if (Input.GetKeyDown(KeyCode.Alpha1))
        {
            state = nextStates[0];  
        }
        else if (Input.GetKeyDown(KeyCode.Alpha2))
        {
            state = nextStates[1];
        }
        else if (Input.GetKeyDown(KeyCode.Alpha3))
        {
            state = nextStates[2];
        }
        else if (Input.GetKeyDown(KeyCode.Space))
        {
            state = startingState;
        }
        textComponent.text = state.GetStateStory();


    }
}

State.cs

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


[CreateAssetMenu(menuName ="State")]
public class State : ScriptableObject {

    [TextArea(14,10)] [SerializeField] string storyText;
    [SerializeField] State[] nextStates;


    public string GetStateStory()
    {
        return storyText;
    }

    public State[] GetNextStates()
    {
        return nextStates;
    }




}

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