Recipes: Common Components - C# Game Programming - page 82

public void GoNextLevel()
{
// if our index goes over the total number of levels in the
// array, we reset it
if( gameLevelNum >= levelNames.Length )
gameLevelNum = 0;
// load the level (the array index starts at 0, but we start
// counting game levels at 1 for clarity's sake)
LoadLevel( gameLevelNum );
// increase our game level index counter
gameLevelNum++;
}
private void LoadLevel( int indexNum )
{
// load the game level
LoadLevel( levelNames[indexNum] );
}
}
4.10.1 Script Breakdown
The script derives from MonoBehavior and should be attached to an empty gameObject:
using UnityEngine;
using System.Collections;
public class SceneManager : MonoBehavior
{
The Start() function calls DontDestroyOnLoad() and passes in a reference to this
instance's gameObject. What this does is tell the game engine not to remove the gameObject
from the game when a new one is loaded. The new scene will load as expected and this
gameObject will still exist in the new scene:
public void Start ()
{
// keep this object alive
DontDestroyOnLoad (this.gameObject);
}
LoadLevel() may be used to load a new scene directly, passing in the name of the scene
as a string. Application.LoadLevel loads the specified scene:
public void LoadLevel( string sceneName )
{
Application.LoadLevel( sceneName );
}