find the next level if current is the last one load main menu instead

Hi

I'm using List.find to find the next scene and it works fine, my problem is when I want to load the next scene and the current is the last one. Obviously I get a missing reference error.

Code (CSharp):

1.   void ClearFunc(int id){
2.         GUILayout.Box(coins + " coins \n" + tries + " tries", GUILayout.Height(Screen.height / 2.75f));
3.         if (GUILayout.Button("Next level", GUILayout.Height(Screen.height / 11))){
4.             ShowClear = false;
5.             nextLevel = levels.Find(i => i.Clear == false).Name;
6.             Application.LoadLevel(nextLevel);
7.             }
8.         if (GUILayout.Button("Main Menu", GUILayout.Height(Screen.height / 11))){
9.             ShowClear = false;
10.             Application.LoadLevel("Main Menu");
11.         }
12.     }

levels.Find(i => i.Clear == false).Name; Finds the next level which isn't cleared yet, I tried using "if nextLevel == null" but it didn't work.

I would like to either load the Main menu or simply hide the "Next level button".

I could have hardcoded this but I like to automate everything for the sake of keeping my code DRY.

 

Use Debug.Log () to see what it is when there is no next level. Then write a check for that.

 

Thanks for your response, I actually found a solution using a different approach and was about to tell a moderator to erase this thread since I didn't need help any more, but I do appreciate the help.

 

EDIT: This version is better, using List.any() now I can do this without having the missing reference exception

Code (CSharp):

1. void ClearFunc(int id){
2.         GUILayout.Box(coins + " coins \n" + tries + " tries", GUILayout.Height(Screen.height / 2.75f));
3.         if (nextLevel != null){
4.         if (GUILayout.Button("Next level", GUILayout.Height(Screen.height / 11))){
5.             ShowClear = false;
6.            
7.             Application.LoadLevel(nextLevel);
8.             }
9.         }
10.         if (nextLevel == null){
11.             GUILayout.Box("This was the last level", GUILayout.Height(Screen.height / 11));
12.         }
13.         if (GUILayout.Button("Main Menu", GUILayout.Height(Screen.height / 11))){
14.             ShowClear = false;
15.             Application.LoadLevel("Main Menu");
16.         }
17.     }
18.     // Update is called once per frame
19.     void Update(){
20.          
21.     }
22.     public void ClearLevel(){
23.         levels.Find(i => i.Name == Application.loadedLevelName).Clear = true;
24.         ShowClear = true;
25.         Time.timeScale = 0;
26.         if (levels.Any(i => !i.Clear)){
27.             nextLevel = levels.Find(i => !i.Clear).Name;
28.         }
29.     }

Old post

 

Ahm, couldn't you just do:

Code (CSharp):

1. if(GUI.Button("Next Level")) {
2.     int next = Application.loadedLevel+1;
3.     if(next >= Application.levelCount) {
4.         next = 0;    //or whatever your main menu is
5.     }
6.     Application.LoadLevel(next);
7. }

?

 

No.