SOLVED Thanks...

I have a code of growing score and it is standing in Canvas.
I want to make a button in Canvas and when I click this button, integer must be decreasing.

Here is a code for creasing score

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4.  
5. public class sayıart : MonoBehaviour {
6.     public int sayi = 0;
7.     // Use this for initialization
8.     void Start () {
9.        
10.     }
11.    
12.     void OnGUI()
13.     {
14.         GUI.Label (new Rect (90, 306, 100, 20), "Tahta:" + sayi);
15.     }
16. }
17.  
18.  

please help, thank you

 

You're using the old UI in this code. You should start by following a tutorial for the current UI.

 

actually I dont know which is new which is old....

 

If you see OnGUI, you're looking at the ancient UI from before Unity 4.6. Any 3rd party UI tutorials created after November 2014 should be using the current system, as well as any tutorial from Unity itself.

 

And adding to Uncle Joe above, code that accesses the Unity UI usually must have a

using UnityEngine.UI;

line at the top. That namespace is all the modern UI.