// seeeeeeecret

Class DemolitionistSecretTab : DemolitionistMenuTab
{
	TextureID img;
	String sub;
	BrokenLines l;
	double smofs;
	int ofs, maxofs;
	bool drag;

	override DemolitionistMenuTab Init( DemolitionistMenu master )
	{
		title = StringTable.Localize("$SWWM_SECRETTAB");
		bHidden = true;
		if ( gameinfo.gametype&GAME_Hexen )
		{
			img = TexMan.CheckForTexture("graphics/KBase/Drawing_Kirin.png");
			sub = StringTable.Localize("$SWWM_FROMKIRIN");
			String str = StringTable.Localize("$SWWM_KIRINPOEM");
			l = master.mSmallFont.BreakLines(str,600);
		}
		else if ( (gameinfo.gametype&GAME_Heretic) || SWWMUtility.IsEviternity() || SWWMUtility.IsEviternityTwo() )
		{
			img = TexMan.CheckForTexture("graphics/KBase/Drawing_Ibuki.png");
			sub = StringTable.Localize("$SWWM_CUTIECLUB");
		}
		else
		{
			img = TexMan.CheckForTexture("graphics/KBase/Drawing_Saya.png");
			sub = StringTable.Localize("$SWWM_TODEMO");
		}
		maxofs = max(0,320-int(master.ws.y-40));
		return Super.Init(master);
	}

	override void OnDestroy()
	{
		Super.OnDestroy();
		if ( l ) l.Destroy();
	}

	override void OnSelect()
	{
		bHidden = false;
		smofs = ofs;
	}
	override void OnDeselect()
	{
		bHidden = true;
		smofs = ofs;
	}

	// called when sending a scroll input
	// returns true if the position actually changed
	//  speed: how many pixels to move (either back or forward)
	bool Scroll( int speed )
	{
		int oldofs = ofs;
		ofs = clamp(ofs+speed,0,maxofs);
		return (ofs != oldofs);
	}

	// called when clicking on our scrollbar
	// returns true if the position actually changed
	//  y: relative click position
	bool SetOffset( double y )
	{
		int oldofs = ofs;
		ofs = clamp(int(round((y-20.5)/((master.ws.y-41.)/maxofs))),0,maxofs);
		return (ofs != oldofs);
	}

	override void MenuInput( int key )
	{
		if ( maxofs <= 0 ) return;
		switch ( key )
		{
		case MK_DOWN:
			if ( Scroll(16) ) master.MenuSound("menu/demoscroll");
			break;
		case MK_UP:
			if ( Scroll(-16) ) master.MenuSound("menu/demoscroll");
			break;
		}
	}
	override void MouseInput( Vector2 pos, int btn )
	{
		if ( maxofs <= 0 ) return;
		switch ( btn )
		{
		case MB_LEFT:
			// see if we're clicking the scrollbar (if it exists)
			if ( pos.x > (master.ws.x-8) )
			{
				SetOffset(pos.y);
				master.MenuSound("menu/demoscroll");
				drag = true;
			}
			break;
		case MB_WHEELUP:
			if ( Scroll(-8) ) master.MenuSound("menu/demoscroll");
			break;
		case MB_WHEELDOWN:
			if ( Scroll(8) ) master.MenuSound("menu/demoscroll");
			break;
		case MB_DRAG:
			if ( drag ) SetOffset(pos.y);
			break;
		case MB_RELEASE:
			drag = false;
			break;
		}
	}

	override void Ticker()
	{
		// update smooth scroll
		smofs = (smofs*.6)+(ofs*.4);
		if ( abs(smofs-ofs) < (1./master.hs) ) smofs = ofs;
	}

	override void Drawer( double fractic )
	{
		double ssmofs = (smofs~==ofs)?smofs:(smofs*(1.-fractic)+((smofs*.6)+(ofs*.4))*fractic);
		double xx = 20;
		double yy;
		if ( maxofs <= 0 ) yy = master.ws.y/2-160;
		else yy = 20-ssmofs;
		Screen.SetClipRect(int((master.origin.x+20)*master.hs),int((master.origin.y+20)*master.hs),int((master.ws.x-40)*master.hs),int((master.ws.y-40)*master.hs));
		Screen.DrawTexture(img,false,master.origin.x+xx,master.origin.y+yy,DTA_VirtualWidthF,master.ss.x,DTA_VirtualHeightF,master.ss.y,DTA_KeepRatio,true);
		int mxlen = 0;
		if ( l ) for ( int i=0; i<l.Count(); i++ )
		{
			if ( l.StringWidth(i) > mxlen ) mxlen = l.StringWidth(i);
			xx = (i<l.Count()-1)?350:(350+mxlen-l.StringWidth(i));
			Screen.DrawText(master.mSmallFont,Font.CR_GOLD,master.origin.x+xx,master.origin.y+yy+4+i*14,l.StringAt(i),DTA_VirtualWidthF,master.ss.x,DTA_VirtualHeightF,master.ss.y,DTA_KeepRatio,true);
		}
		yy += 306;
		xx = int(master.ws.x-master.mSmallFont.StringWidth(sub))/2;
		Screen.DrawText(master.mSmallFont,Font.CR_WHITE,master.origin.x+xx,master.origin.y+yy,sub,DTA_VirtualWidthF,master.ss.x,DTA_VirtualHeightF,master.ss.y,DTA_KeepRatio,true);
		Screen.ClearClipRect();
		if ( maxofs <= 0 ) return;
		xx = master.ws.x-8;
		master.DrawVSeparator(xx,14,master.ws.y-28);
		xx += 2;
		yy = floor(ssmofs*((master.ws.y-39)/maxofs))+14;
		Screen.DrawText(master.mSmallFont,Font.CR_FIRE,master.origin.x+xx,master.origin.y+yy,"▮",DTA_VirtualWidthF,master.ss.x,DTA_VirtualHeightF,master.ss.y,DTA_KeepRatio,true);
	}
}