GUI Basics For The Unity3d

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Making Controls with UnityGUI

UnityGUI controls make use of a special function called OnGUI(). The OnGUI() function gets called every frame as long as the containing script is enabled - just like the Update() function.

Code :

function OnGUI () 

{
    // Make a background box
       GUI.Box (Rect (10,10,100,90), "Loader Menu");
   if (GUI.Button (Rect (20,40,80,20), "Level 1")) 

{
        Application.LoadLevel (1);
      }
   // Make the second button.
   if (GUI.Button (Rect (20,70,80,20), "Level 2")) 

      {
        Application.LoadLevel (2);
      }
}

It Will Look Like This :  

Now Controls in GUI : 

How To add Lable in GUI ?

-->  CODE : 

function OnGUI ()

{
   GUI.Label (Rect (0,0,100,50), "This is the text string for a Label Control");
 }

If you Want to Add Texture2D then it calls like 

--> var controlTexture : Texture2D;

function OnGUI () 

{
    GUI.Label (Rect (0,0,100,50), controlTexture);
}  

How To Add Button in GUI Function ??

--> Code : 

 var icon : Texture2D;

function OnGUI ()

{
    if (GUI.Button (Rect (10,10, 100, 50), icon)) 

{
   print ("you clicked the icon");
       }

    if (GUI.Button (Rect (10,70, 100, 20), "This is text")) 

{
  print ("you clicked the text button");
       }
} 

---

Vivek P Shah

Game Developer in Unity3d