Scaleform HUD Help

[brain_rot]

So i have been trying to get a GFx HUD to work for two or three months now. I've watched all of the Scaleform tutorial videos a few times now and I am just not sure what I am doing wrong. The HUD shows up but it does not update to my current health or display the ammount of I have ammo.

class ZomHUD_Base extends UDKHUD;

var ZomHUD HudMovie;

//Handles death

singular event Destroyed()
{
	if (HudMovie != none)
	{
		HudMovie.Close(true);
		HudMovie = none;
	}

	super.Destroyed();

}


simulated function PostBeginPlay()
{
	super.PostBeginPlay();
	CreateHUD();

}



function CreateHUD()
{
        HudMovie = new class'ZomHUD';
	HudMovie.SetTimingMode(TM_Real);
	HudMovie.Init(class'Engine'.static.GetEngine().GamePlayers[HudMovie.LocalPlayerOwnerIndex]);
	HudMovie.SetViewScaleMode(SM_ExactFit);
        HudMovie.SetAlignment(Align_TopLeft);
}




 

DefaultProperties
{
}

class ZomHUD extends GFxMoviePlayer;

var float lastHealthPC;
var float lastAmmoPC;


var GFxObject HUDHealthBAR, HUDHealthBOX, HUDAmmoBOX;
var GFxObject  ammo, clips;

var GFXObject crosshair;

function int roundNum(float NumIn)
{
	local int iNum;
	local float fNum;

	fNum = NumIn;
	iNum = int(fNum);
	fNum -= iNum;
	if (fNum >= 0.5f)
	{
		return (iNum + 1);
	}
		else
	{
		return iNum;
	}
}

function int GetPercentage( int Value, int MaxValue ) 
{
	return roundNum( ( float( Value ) / float( MaxValue ) ) * 100.0f);

}


function Init( optional LocalPlayer LocPlay ) 
{

 	Start();
	Advance(0.f);

	Super.Init( LocPlay );
	
	LastHealthpc = -1000;

	HUDHealthBOX = GetVariableObject("_root.HUDHealthBOX");
	HUDAmmoBOX = GetVariableObject("_root.HUDAmmoBOX");
	HUDhealthBar = GetVariableObject("_root.HUDHealthBOX.HUDHealthBAR");
	ammo = GetVariableObject("_root.HUDAmmoBOX.ammo");
	clips = GetVariableObject("_root.HUDAmmoBOX.clips");
	
	
}


function TickHUD()
{
	local PlayerController PC;
	local Zompawn ZP;

        PC = GetPC();

        ZP = ZomPawn(PC.Pawn);
	       

        if (ZP == None || ZP.Weapon == None)
		{
		return;
		}
		if (lastHealthPC != GetPercentage(ZP.Health, ZP.HealthMax))
			{
			lastHealthPC = GetPercentage(ZP.Health, ZP.HealthMax);
			HUDHealthBAR.SetFloat("_xscale", (lastHealthPC > 100) ? 100.0f : lastHealthPC);
			}
		if (lastAmmoPC != GetPercentage(ZomWeapon(ZP.Weapon).MagAmmo, ZomWeapon(ZP.Weapon).MaxMagAmmo)) 
		{
			lastAmmoPC = GetPercentage(ZomWeapon(ZP.Weapon).MagAmmo, ZomWeapon(ZP.Weapon).MaxMagAmmo);

		}
		ammo.SetString("text", (ZomWeapon(ZP.Weapon).MagAmmo)$" / "$(ZomWeapon(ZP.Weapon).MaxMagAmmo)$"");


        clips.SetString("text", (ZomWeapon(ZP.Weapon).MaxAmmoCount)$"");

}

DefaultProperties
{
	bIgnoreMouseInput = false
	bAutoPlay=True
	bDisplayWithHudOff=false
	MovieInfo=SwfMovie'ZomHUD.CleanHUD'
	
}

I probably made a stupid mistake somewhere. Any help would be nice. Thank you.

[Matt Doyle]

You forgot to have your HUD wrapper execute TickHud().

event PostRender()
{	
	super.PostRender();

	if (HudMovie != none)
	{
		HudMovie.TickHud(0);
	}
}

Also, change your TickHud() function to this:

function TickHud(float DeltaTime)

[brain_rot]

Thank you for the quick reply. I changed the code but nothing seems to have changed. Any other ideas?

class ZomHUD_Base extends UDKHUD;

var ZomHUD HudMovie;

//Handles death

singular event Destroyed()
{
	if (HudMovie != none)
	{
		HudMovie.Close(true);
		HudMovie = none;
	}

	super.Destroyed();

}


simulated function PostBeginPlay()
{
	super.PostBeginPlay();
	CreateHUD();

}



function CreateHUD()
{
        HudMovie = new class'ZomHUD';
	HudMovie.SetTimingMode(TM_Real);
	HudMovie.Init(class'Engine'.static.GetEngine().GamePlayers[HudMovie.LocalPlayerOwnerIndex]);
	HudMovie.SetViewScaleMode(SM_ExactFit);
        HudMovie.SetAlignment(Align_TopLeft);
}

event  PostRender()
{
      super.PostRender();
      if(HudMovie != none)
   {
       HudMovie.TickHUD(0);
   }
}



DefaultProperties
{
}

class ZomHUD extends GFxMoviePlayer;

var float lastHealthPC;
var float lastAmmoPC;


var GFxObject HUDHealthBAR, HUDHealthBOX, HUDAmmoBOX;
var GFxObject  ammo, clips;

var GFXObject crosshair;

function int roundNum(float NumIn)
{
	local int iNum;
	local float fNum;

	fNum = NumIn;
	iNum = int(fNum);
	fNum -= iNum;
	if (fNum >= 0.5f)
	{
		return (iNum + 1);
	}
		else
	{
		return iNum;
	}
}

function int GetPercentage( int Value, int MaxValue ) 
{
	return roundNum( ( float( Value ) / float( MaxValue ) ) * 100.0f);

}


function Init( optional LocalPlayer LocPlay ) 
{

 	Start();
	Advance(0.f);

	Super.Init( LocPlay );
	
	LastHealthpc = -1000;

	HUDHealthBOX = GetVariableObject("_root.HUDHealthBOX");
	HUDAmmoBOX = GetVariableObject("_root.HUDAmmoBOX");
	HUDhealthBar = GetVariableObject("_root.HUDHealthBOX.HUDHealthBAR");
	ammo = GetVariableObject("_root.HUDAmmoBOX.ammo");
	clips = GetVariableObject("_root.HUDAmmoBOX.clips");
	
	
}


function TickHUD(float DeltaTime)
{
	local PlayerController PC;
	local Zompawn ZP;

        PC = GetPC();

        ZP = ZomPawn(PC.Pawn);
	       

        if (ZP == None || ZP.Weapon == None)
		{
		return;
		}
		if (lastHealthPC != GetPercentage(ZP.Health, ZP.HealthMax))
			{
			lastHealthPC = GetPercentage(ZP.Health, ZP.HealthMax);
			HUDHealthBAR.SetFloat("_xscale", (lastHealthPC > 100) ? 100.0f : lastHealthPC);
			}
		if (lastAmmoPC != GetPercentage(ZomWeapon(ZP.Weapon).MagAmmo, ZomWeapon(ZP.Weapon).MaxMagAmmo)) 
		{
			lastAmmoPC = GetPercentage(ZomWeapon(ZP.Weapon).MagAmmo, ZomWeapon(ZP.Weapon).MaxMagAmmo);

		}
		ammo.SetString("text", (ZomWeapon(ZP.Weapon).MagAmmo)$" / "$(ZomWeapon(ZP.Weapon).MaxMagAmmo)$"");


        clips.SetString("text", (ZomWeapon(ZP.Weapon).MaxAmmoCount)$"");

}

DefaultProperties
{
	bIgnoreMouseInput = false
	bAutoPlay=True
	bDisplayWithHudOff=false
	MovieInfo=SwfMovie'ZomHUD.CleanHUD'
	
}

Is there anything at all in action script I need for a HUD to work?

[Matt Doyle]

Not sure what could be wrong then. You'll need to check the log for error messages. Try adding some `log messages in your functions to see if any of them are actually firing too. I'd also recommend moving the Super.Init( LocPlay); line above Start() and Advance(0.f).

[brain_rot]

So I checked my log and it was very lengthy.

A summary

[0030.20] ScriptWarning: Accessed None 'HUDHealthBAR'
ZomHUD Transient.ZomHUD_0
Function TerminalConstant.ZomHUD:TickHUD:01F2

[0030.20] ScriptWarning: Accessed None 'Ammo'
ZomHUD Transient.ZomHUD_0
Function TerminalConstant.ZomHUD:TickHUD:03BE

[0030.20] ScriptWarning: Accessed None 'Clips'
ZomHUD Transient.ZomHUD_0
Function TerminalConstant.ZomHUD:TickHUD:04A5

This went on for pages.
Any Idea what it means?
Thanks for the Help

[Matt Doyle]

Accessed None means your assets don't exist when you try to do something with them. Which means that these references:

HUDHealthBOX = GetVariableObject("_root.HUDHealthBOX");
	HUDAmmoBOX = GetVariableObject("_root.HUDAmmoBOX");
	HUDhealthBar = GetVariableObject("_root.HUDHealthBOX.HUDHealthBAR");
	ammo = GetVariableObject("_root.HUDAmmoBOX.ammo");
	clips = GetVariableObject("_root.HUDAmmoBOX.clips");

are pointing to nothing. You will need to figure out why. Incorrect instance names? Don't exist on frame 1? What file format are you using? AS2 or AS3? If AS2, "_root" is correct, but if AS3, instead you must use "root".

I did notice that your names don't match:

HUDhealthBar vs. HUDHealthBAR

Is UnrealScript case sensitive? I can't recall.

[brain_rot]

I am using AS2. Well that is odd. I'll check my .fla

[brain_rot]

Alright, after looking at my .fla, I noticed something. My instance name is different from my instant of. Does this affect anything? I have tried removing HUD from the beginning of the references and I still get the same errors in my log.

[Matt Doyle]

It loooks like your problem is that HUDHealthBar is not a movie clip, but just a Bitmap. You can't give a Bitmap on the stage an instance name. 'Instance of:' is not the same thing as instance name. Convert HUDHealthBar to a movie clip, then give it an instance name.

[brain_rot]

I converted the bitmaps to movie clips and changed the references in my code but I still get the same error. Would it be alright if I pm-ed you my .fla? I understand if you are busy. Thanks for the help.

[Matt Doyle]

Sure. Go ahead.

[brain_rot]

Just sent it.

[Matt Doyle]

You'll have to resave it as CS4 or CS5, as I don't have CS5.5 here.

[brain_rot]

Just sent it.

[brain_rot]

Ok. It sould be is CS4 now. Thanks for being patient.

[Matt Doyle]

So, this is your path:

"_root.HealthBOX.HealthBAR"

And...

"_root.AmmoBOX.AmmoBOX.Ammo"

[brain_rot]

Thank you so much for your help. My health bar is now working. I am still having trouble with my Ammo showing up properly. Do the text fields need something special in the reference? I have two text fields in the AmmoBOX movie clip. I have the text field set to dynamic.

[LordNelson7]

I have been reading this and it has helped me so much to develop a working Gfx Hud. Thanks guys!