Lurpz tutorial issue: Getting blank blue screen instead of backdrop

Unity Engine
1

I see a couple of other posts like this, but none of them explain how they resolved.

I’m doing the platformer tutorial and I’ve noticed that the tutorial differs a little from how Unity looks now, but I’ve puzzled through most of it.

Now I’m at a roadblock when it comes to the start screen. (page 56 - 63 of the tutorial). All I’m seeing when I run the new scene that you create at this point is a blank blue screen. The music loop works fine, however.

Here’s my StartMenuGUI.js file.

Any help is appreciated.

//Make the script also execute in edit mode
@script ExecuteInEditMode()

var gSkin : GUISkin;
var backdrop : Texture2D; // Our backdrop image goes here.
private var isLoading = false; //if true, we'll display the "Loading..." message.

function onGUI()
{
	if(gSkin)
		GUI.skin = gSkin;
	else
		Debug.Log("StartMenuGUI: GUI Skin Object missing!");
	
	var backgroundStyle : GUIStyle = new GUIStyle();
	backgroundStyle.normal.background = backdrop;
	GUI.Label ( Rect( (Screen.width - (Screen.height * 2)) * 0.75, 0, Screen.height * 2, Screen.height), "",backgroundStyle);
	GUI.Label ( Rect( (Screen.width/2) - 197, 50, 400, 100), "Lerpz Escapes", "mainMenuTitle");
	
	if(GUI.Button( Rect( (Screen.width/2) - 70, Screen.height - 600, 140, 70), "Play"))
		{
			isLoading = true;
			Application.LoadLevel("TheGame"); // load the level
		}
		
	var isWebPlayer = (Application.platform == RuntimePlatform.OSXWebPlayer || Application.platform == RuntimePlatform.WindowsWebPlayer);
	
	if(!isWebPlayer)
		{
			if(GUI.Button ( Rect( (Screen.width/2) - 70, Screen.height - 80, 140, 70), "Quit")) Application.Quit();
		}
	
	if(isLoading)
		GUI.Label ( Rect( (Screen.width/2) - 110, (Screen.height/2) - 60, 400, 70), "Loading...", "mainMenuTitle");
}
2

while delving through the forums for an answer, I came across someone who was able to get past what I was experiancing. Only they just needed to attach the script to Main Camera.
Since I had already done that, I copied thier script from the forums and replaced mine and now it works.
I need to learn from my mistake, though, and I’ve been starting at my script side by side with his (that works) for about 30 minutes and outside of some spaces, I can’t see the difference.

Would someone show me where I went pearshaped?

My script is posted above, here’s the one that works.

//Make the script also execute in edit mode
@script ExecuteInEditMode()

var gSkin : GUISkin;
var backdrop : Texture2D; // our backdrop image goes here

private var isLoading = false; //if true we will display the loading... message


function OnGUI () {
	if (gSkin)
		GUI.skin = gSkin;
	else
		Debug.Log("StartMenuGUI: GUI Skin object missing!");
		
	var backgroundStyle= new GUIStyle();
	backgroundStyle.normal.background= backdrop;
	GUI.Label (Rect( (Screen.width-(Screen.height*2))*0.75,0,Screen.height*2,Screen.height), "", backgroundStyle);
	
	GUI.Label (Rect( (Screen.width/2)-197,50,400,100), "Lerpz Escapes", "mainMenuTitle");
	
	if (GUI.Button( Rect((Screen.width/2)-70, Screen.height - 160,140,70), "Play"))
	{
		isLoading =true;
		Application.LoadLevel("TheGame"); // load the game level
	}
		
	var isWebPlayer = (Application.platform == RuntimePlatform.OSXWebPlayer || Application.platform == RuntimePlatform.WindowsWebPlayer);
	if (!isWebPlayer)
	{
		if (GUI.Button( Rect( (Screen.width/2)-70, Screen.height -80,140,70), "Quit")) 
			Application.Quit();
	}
	
	if (isLoading)
		GUI.Label ( Rect( (Screen.width/2)-110, (Screen.height/2) -60,400,70),"Loading ..." , "mainMenuTitle");

	
}
3

Found it.

I messed up the variable assignment for backgroundStyle.

I put in

var backgroundStyle= new GUIStyle();

when it should have been

var backgroundStyle : GUIStyle = new GUIStyle();

Fast finger mistake, I guess.

-Seth