class OverlayHUD extends Hat_HUDMenu
	DependsOn(Hat_HUDMenu_ModLevelSelect);

//	PROPERTIES START

//Set this to true if you want to remove the ripped paper from the top and bottom of the cdlc "screen"
var const bool RemoveRippedPaper;

var const bool ScanLineEffect;

var const bool ShineEffect;

//	PROPERTIES END

var Hat_HUDMenu_ModLevelSelect ModsHUD;
var bool IsPreviewingThisMod;
var int OriginalRenderingMode;

//called by the gamemod after the mod hud was opened and ModsHUD gets set.
event InitHUD(Hat_HUD H)
{
	ModsHUD.PushOnHUDElementClosedDelegate(OnModHUDClosed);
	
	if (RemoveRippedPaper)
		ModsHUD.BackgroundRippedPaper = Texture2D'EngineResources.Textures.TransparentTexture';
}

event OnModHUDClosed(HUD H, Hat_HUDElement e)
{
	//close yourself
	CloseHUD(H, self.class);
}

//happens after closing
function CleanUp()
{
	Super.CleanUp();
	
	//get rid of the reference once it gets closed, so it can be properly garbage collected
	ModsHUD = None;
}

event bool Tick(HUD H, float DeltaTime)
{
	local bool Previewing;
	
	if (!Super.Tick(H, DeltaTime)) return false;
	
	Previewing = ModsHUD.Preview && ModsHUD.PreviewMod.ScriptPackageName == String(class.Outer);
	if (IsPreviewingThisMod != Previewing)
	{
		PrePreviewStateChanged(H, Previewing);
		IsPreviewingThisMod = Previewing;
	}
	
	if (IsPreviewingThisMod)
	{
		//because the og hud is turned off, i had to copy-paste some essencial stuff here
		
		if (!ModsHUD.IsLoadingMap)
			ModsHUD.ReactivateMouseCheck(H);
		
		MouseActivated = ModsHUD.MouseActivated;
		
		if (ModsHUD.UndoPreview)
			ModsHUD.ExitPreview();
		else
			ModsHUD.PreviewTime += DeltaTime;
		
		if (ModsHUD.ClickDelay > 0)
		{
			ModsHUD.ClickDelay -= DeltaTime;
			if (ModsHUD.ClickDelay < 0)
				ModsHUD.ClickDelay = 0;
		}
		
		if (ModsHUD.IsCredits && ModsHUD.CreditsList.Length > 10)
		{
			ModsHUD.TextScrollOffset = (ModsHUD.TextScrollOffset + DeltaTime) % (float(ModsHUD.CreditsList.Length));
		}
	}
	
	return true;
}

event PrePreviewStateChanged(HUD H, bool newPreviewing)
{
	if (newPreviewing)
	{
		PlayOwnerSound(H, ModsHUD.CreatorDLCChangeChannel);
		
		ModsHUD.PreviewLogo = class'GameMod'.static.GetModIcon(ModsHUD.PreviewMod, 'Logo');
		ModsHUD.PreviewSplashArt = class'GameMod'.static.GetModIcon(ModsHUD.PreviewMod, 'SplashArt');
		ModsHUD.PreviewBackgroundArt = class'GameMod'.static.GetModIcon(ModsHUD.PreviewMod, 'Background');
		ModsHUD.PreviewTitlecard = class'GameMod'.static.GetModIcon(ModsHUD.PreviewMod, 'Titlecard');
		if (ModsHUD.PreviewInstance != None && ModsHUD.PreviewBackgroundArt != None)
		{
			ModsHUD.PreviewInstance.SetParent(Material'HatinTime_CreatorDLC.Materials.CreatorDLCBackground');
			ModsHUD.PreviewInstance.SetTextureParameterValue('Background', ModsHUD.PreviewBackgroundArt);
		}
		
		OriginalRenderingMode = ModsHUD.ModMenuTabs[ModsHUD.CurrentModMenuIndex].SpecialRenderingMode;
		ModsHUD.ModMenuTabs[ModsHUD.CurrentModMenuIndex].SpecialRenderingMode = 2;
		
		ModsHUD.UpdatePreviewButtons(H);
		
		//Removing the Enable/Disable button here since, with the Play Intro button, there ended up being 3 buttons, one of them ending up outside of the "screen"
		//Though if you want it back, just comment this line.
		ModsHUD.PreviewButtons.RemoveItem(LevelPreview_Enable);
		
		if (ScanLineEffect)
			ModsHUD.ModMenuTabs[ModsHUD.CurrentModMenuIndex].Overlay.AddItem(Material'HatinTime_CreatorDLC.Materials.CreatorDLCOverlayScanline');
		if (ShineEffect)
			ModsHUD.ModMenuTabs[ModsHUD.CurrentModMenuIndex].Overlay.AddItem(Material'HatinTime_CreatorDLC.Materials.CreatorDLCOverlayShine');
	}
	else
	{
		ModsHUD.ModMenuTabs[ModsHUD.CurrentModMenuIndex].SpecialRenderingMode = OriginalRenderingMode;
		ModsHUD.ModMenuTabs[ModsHUD.CurrentModMenuIndex].Overlay.Length = 0;
	}
	
	//Toggling the og hud so it doesn't get rendered when our mod is selected.
	Hat_HUD(H).SetElementEnabled(class'Hat_HUDMenu_ModLevelSelect', !newPreviewing);
}

//Copy-pasted the essential stuff for rendering the cdlc menu
event bool Render(HUD H)
{
	local float scale, alpha;
	local int ModListMode;
	
	if (!IsPreviewingThisMod || !Super.Render(H)) return false;

	scale = FMin(H.Canvas.ClipX / 1600, H.Canvas.ClipY / 900);
	alpha = 1 - ((1 - FClamp(ModsHUD.PreviewTime/ 0.25f,0,1)) ** 2);
	
	// Background
	H.Canvas.SetDrawColor(0,0,0,180);
	H.Canvas.SetPos(0,0);
	H.Canvas.DrawRect(H.Canvas.ClipX, H.Canvas.ClipY);
		
	H.Canvas.SetDrawColor(255,255,255,255*alpha);
	ModsHUD.ApplyFont(H, true);

	ModsHUD.MouseClear = true;
	
	ModListMode = ModsHUD.ModListMode;
	ModsHUD.ModListMode = 2;
	ModsHUD.RenderPreviewDLC(H, scale, alpha);
	ModsHUD.ModListMode = ModListMode;
	
	if (ModsHUD.PreviewMod.WorkshopId > 0 && !ModsHUD.IsCredits)
	{
		ModsHUD.DrawThumb(H, true, Scale*480, Scale*670, Scale*75, Scale*82.5);
		ModsHUD.DrawThumb(H, false, Scale*580, Scale*670, Scale*75, Scale*82.5);
	}

	if (ModsHUD.MouseClear && !Hat_HUD(H).IsGamepad() && MouseActivated)
	{
		ModsHUD.WipeAllSelections();
	}
	if (ModsHUD.IsMenuFrozen)
	{
		H.Canvas.SetDrawColor(0,0,0,180);
		H.Canvas.SetPos(0,0);
		H.Canvas.DrawRect(H.Canvas.ClipX, H.Canvas.ClipY);
	}

	return true;
}

function bool OnPressUp(HUD H, bool menu, bool release)
{
	if (IsPreviewingThisMod && ModsHUD.OnPressUp(H, menu, release))
	{
		MouseActivated = ModsHUD.MouseActivated;
		return true;
	}
	return false;
}

function bool OnPressDown(HUD H, bool menu, bool release)
{
	if (IsPreviewingThisMod && ModsHUD.OnPressDown(H, menu, release))
	{
		MouseActivated = ModsHUD.MouseActivated;
		return true;
	}
	return false;
}

function bool OnPressLeft(HUD H, bool menu, bool release)
{
	if (IsPreviewingThisMod)
	{
		if (ModsHUD.SelectedButton == LevelPreview_ThumbsUp || (ModsHUD.PreviewButtons.Find(ModsHUD.SelectedButton) == 0 && ModsHUD.PreviewMod.WorkshopId <= 0))
		{
			ModsHUD.SelectedButton = (ModsHUD.CreditsList.Length > 0 && ModsHUD.PreviewButtons.Find(LevelPreview_Credits) == INDEX_NONE) ? LevelPreview_Credits : LevelPreview_Back;
			
			ModsHUD.SetMouseHidden(H,true);
			ModsHUD.PlaySelectionChangedSound(H);
			ModsHUD.PreviewButtonsInterp = 0;
			ModsHUD.SelectedWorkshopBrowse = false;
		}
		else if (!ModsHUD.OnPressLeft(H, menu, release))
			return false;
		
		MouseActivated = ModsHUD.MouseActivated;
		return true;
	}
	return false;
}

function bool OnPressRight(HUD H, bool menu, bool release)
{
	local EModLevelPreviewButton RightmostLeftButton;
	
	if (IsPreviewingThisMod)
	{
		//the compiler threw a tantrum when i put this directly in the if :/
		RightmostLeftButton = (ModsHUD.CreditsList.Length > 0 && ModsHUD.PreviewButtons.Find(LevelPreview_Credits) == INDEX_NONE) ? LevelPreview_Credits : LevelPreview_Back;
		
		if (ModsHUD.SelectedButton == RightmostLeftButton && ModsHUD.PreviewMod.WorkshopId > 0)
		{
			ModsHUD.SelectedButton = LevelPreview_ThumbsUp;
			
			ModsHUD.SetMouseHidden(H,true);
			ModsHUD.PlaySelectionChangedSound(H);
			ModsHUD.PreviewButtonsInterp = 0;
			ModsHUD.SelectedWorkshopBrowse = false;
		}
		else if (!ModsHUD.OnPressRight(H, menu, release))
				return false;
		
		MouseActivated = ModsHUD.MouseActivated;
		return true;
	}
	return false;
}

function bool OnClick(HUD H, bool release)
{
	if (IsPreviewingThisMod) return ModsHUD.OnClick(H, release);
	else return false;
}

function bool OnAltClick(HUD H, bool release)
{
	if (IsPreviewingThisMod) return ModsHUD.OnAltClick(H, release);
	else return false;
}

defaultproperties
{
	ScanLineEffect = true
	ShineEffect = true
	
	RequiresMouse = true
	RealTime = true
}