How to make a transition between unity3d scenes?

Question

C++ / C#

How to make it so that when it collides with a certain object, the level is reloaded on the Internet read that Application.loadlevel(Application.loadedLevel), but unity and the editor write Replace with SceneManager ..... the question is how to replace the second part (Application.loadedLevel) using scene manager? I tried to find using Google gives outdated sites using Application ... (maybe I just searched badly)

Answer 1

using UnityEngine.SceneManagement;
SceneManager.LoadScene("scene_name")

or

using UnityEngine.SceneManagement;
SceneManager.LoadScene(scene_id)

Answer 2

Create a script and in it:

void ...{
Application.loadlevel("namelevel");
}<code>

Answer 3

The easiest way is to write a universal script and switch levels by index
using UnityEngine.SceneManagement;
SceneManager.LoadScene(SceneManager.GetActiveScene().buildIndex +1); // Get the scene index and load the scene with an index one higher