Odd behavior in member function... or is it?

Questions & Answers
1

Riddle me this, Batman…

In my game, I have just built a class to handle user input and has some GUI element (or will eventually have fully realized GUI…)

I encountered this strange behavior:

class MyClass(){
  //...constructor
  //...properties
  myText : String; //assigned in an init member function
  //...member functions
  function MyDraw(){
    print( "class draw" );
    GUI.Label( Rect( 0, 0, 300, 12 ), myText );
  }
}

//an instance of myClass is created and assigned to a variable,
//then initialized all in OnStart()

function OnGUI(){
  print( "OnGUI" );
  myInstancedClass.MyDraw();
}

So what happens is, the console shows “OnGUI” printed as expected, but “class draw” is NOT printed-- but the GUI.Label call executes because I can see it on screen.

This threw me because I thought the class function wasn’t getting called until I put a test string into the member variable to see if it appeared on screen. So, just the print() inside the member function isn’t being called??

What’s happening here-- help me understand.

2

The handy print function is a member of MonoBehaviour to wrap Debug.Log easily in your scripts. However your custom class isn’t derived from MonoBehaviour and therefore there is no print function. You have to use Debug.Log() instead.