[C#] How to make GUI position change based on screen resolution? (Please Help)

I am creating a very simple game. It is my first game by the way. It is for PC/Mac/Linux. I have scripted most of it without trouble. But my problem that I decided to fix/deal with last is the GUI auto scaling. I have created A LOT of GUI throughout my game. I have used, GUI.Label, GUI.Button, GUI Text, a lot of GUI, you should get the point. My problem is, when I enter "Free Aspect" mode in the editor, everything is where it should be. When I change the aspect in the editor or build the game and play at any resolution, nothing is where I want it to be EXACTLY although on one resolution, things are close to where they should be. How can I fix this to where the GUI will adjust to whatever screen resolution the user's screen is? Someone PLEASE help! I have been trying to fix this throughout the whole time I have been building my game. I saw something about using GUI.Matrix but I have NO idea what that is. Please help!

 

Code (csharp):

1.  
2.     void OnGUI()
3.     {
4.         GUI.matrix = Matrix4x4.TRS( Vector3.zero, Quaternion.identity, new Vector3( Screen.width / 1980.0f, Screen.height / 1080.0f, 1.0f ) );
5.  
6.         GUI.Label (new Rect (50, 0, 50, 25), "Test");
7.  
8.     }
9. }
10.  

Test this line of code and try this.

the 1980 x 1020 is what I use for the default screen rez you would change these value to yours.

 

Ok, I changed the numbers that you told me to change and the GUI.Label that you put in worked fantastic! But, on the same script, I have some buttons made. I made a custom aspect ratio of like 1:2 and the buttons still appeared but they were not in the EXACT spot. Is this normal? And another question is say someone who is playing the game doesn't have a screen of 1980 x 1080 or 1280 x 720 or 1600 x 900 or any resolution that I set it to, will the GUI go off their screen but not people who DO have the resolution that I made it. But this REALLY helps. WAY better on EVERYTHING compared to what it was...
But if you can, please answer these 2 questions! Thank you!

 

use some math combined with Screen.currentResolution.height and Screen.currentResolution.width, make up for the desired position of the menu's in your game.

 

Could you post your code?

I won't be able to look at it for about 12 hours though, I am leaving now for work.

 

This littel chunk of code will return you a rectangle based on your current screen resolution... Most GUI elements use rectangles for size position etc. therefore it should solve your problem the easiest way:

Code (csharp):

1. Rect screenRelativeRect(float left, float top, float width, float height) {
2.     Rect r = new Rect(Screen.width * left, Screen.height * top, Screen.width * width, Screen.height * height);
3.     return r;
4. }

 

Here is my code:

Code (csharp):

1.  
2. void OnGUI ()
3.     {
4.         GUI.matrix = Matrix4x4.TRS( Vector3.zero, Quaternion.identity, new Vector3( Screen.width / 1600.0f, Screen.height / 900.0f, 1.0f ) );
5.         GUI.Label (new Rect (500, 500, 50, 25), "Test", customGUIStyle);
6.         if (deleteSave == false)
7.         {
8.             //Draws Level Selecter Button
9.             if (GUI.Button(new Rect(730, 200, 150, 65), "Select Level"))
10.             {
11.                 Application.LoadLevel("Level Selecter");
12.             }
13.  
14.             //Draws the Delete Game Save Button
15.             if (GUI.Button(new Rect(730, 300, 150, 65), "Delete Save"))
16.             {
17.                 deleteSave = true;
18.             }
19.  
20.             //Draws the Game Shop Button
21.             if (GUI.Button(new Rect(730, 400, 150, 65), "The Dumbest Store"))
22.             {
23.                 Application.LoadLevel("Game Shop");
24.             }
25.             if (GUI.Button(new Rect(730, 500, 150, 65), "Quit Game"))
26.             {
27.                 Application.Quit();
28.             }
29.         }
30.         if (deleteSave == true)
31.         {
32.             GUI.Box(new Rect(50, 10, 1500, 700), "Are you sure your want to delete you game save?" + "\n" + "This will delete EVERYTHING you have ever done on this game so far!", customGUIStyle);
33.             if (GUI.Button(new Rect(800, 580, 275, 70), "Confirm"))
34.             {
35.                 if (File.Exists("C:/Vlentful Studios/The World's Dumbest Game/" + "save.wdg"))
36.                 {
37.                     File.Delete("C:/Vlentful Studios/The World's Dumbest Game/" + "save.wdg");
38.                     PlayerPrefs.DeleteAll();
39.                     deleteSave = false;
40.                 }
41.                 else if (!File.Exists("C:/Vlentful Studios/The World's Dumbest Game/" + "save.wdg"))
42.                 {
43.                     deleteSave = false;
44.                 }
45.             }
46.             else if (GUI.Button(new Rect(475, 580, 275, 70), "Cancel"))
47.             {
48.                 deleteSave = false;
49.             }
50.         }
51.     }

One problem is I would have to experiment with Screen.currentResolution because I have never worked with it. I will try to work with it though...

My only question is does this HAVE to be in a method?(most people call it a function but I think method is the proper term in C#. That is what I read from my C# programming book) Because I have more than one button so I would think that I would just make more variables. And does saying the "(Screen.width * left)" mean LITERALLY tell it "left" or give a a number for the left that your want the button to be? Just clarifying.

EDIT:
I just now realized that I was using (Screen.width / 2) and that was messing things up. The code I posted is the right code. I forgot that I fixed it because I just played some basketball and forgot when I cam back. My bad. But I feel that something bad may happen soon. I will post here if something does go wrong.(again)

 

yes using screen.width ./2 will get messed up using that bit of code I gave u. Hope everything is working now!