forellenforderung3/Assets/AssetsFORELLE/Script/MainMenu.cs

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

public class MainMenu : MonoBehaviour
{
    private int selectedLevel;
    
    public void startGame()
    {
        Debug.Log("Main Menu: New Game");
        SceneManager.LoadScene(SceneManager.GetActiveScene().buildIndex+1);
    }

    public void endGame()
    {
        Debug.Log("Main Menu: Quit Game");
        Application.Quit();
    }

    public void setSelectedLeve(int level)
    {
        selectedLevel = level;
    }

    public void loadScene()
    {
        switch (++selectedLevel)
        {
            case 5:
                selectedLevel = 7;
                break;
            
            case 6:
                selectedLevel = 10;
                break;
            
            case 7:
                selectedLevel = 11;
                break;
            
            case 8:
                selectedLevel = 12;
                break;
            
            case 9:
                selectedLevel = 13;
                break;
            
            case 10:
                selectedLevel = 14;
                break;
            
            case 11:
                selectedLevel = 15;
                break;
            
            case 12:
                selectedLevel = 16;
                break;
        }
        
        Debug.Log("Main Menu: Load Level " + selectedLevel);
        SceneManager.LoadScene(selectedLevel);
    }
}