/*
** shared_sbar.cpp
** Base status bar implementation
**
**---------------------------------------------------------------------------
** Copyright 1998-2005 Randy Heit
** All rights reserved.
**
** Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions
** are met:
**
** 1. Redistributions of source code must retain the above copyright
**    notice, this list of conditions and the following disclaimer.
** 2. Redistributions in binary form must reproduce the above copyright
**    notice, this list of conditions and the following disclaimer in the
**    documentation and/or other materials provided with the distribution.
** 3. The name of the author may not be used to endorse or promote products
**    derived from this software without specific prior written permission.
**
** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
**---------------------------------------------------------------------------
**
*/

#include <assert.h>

#include "templates.h"
#include "sbar.h"
#include "c_cvars.h"
#include "c_dispatch.h"
#include "v_video.h"
#include "m_swap.h"
#include "r_draw.h"
#include "w_wad.h"
#include "v_text.h"
#include "s_sound.h"
#include "gi.h"
#include "p_effect.h"
#include "../version.h"

#define XHAIRSHRINKSIZE		(FRACUNIT/18)
#define XHAIRPICKUPSIZE		(FRACUNIT*2+XHAIRSHRINKSIZE)
#define POWERUPICONSIZE		32

EXTERN_CVAR (Bool, am_showmonsters)
EXTERN_CVAR (Bool, am_showsecrets)
EXTERN_CVAR (Bool, am_showitems)
EXTERN_CVAR (Bool, am_showtime)
EXTERN_CVAR (Bool, noisedebug)
EXTERN_CVAR (Bool, hud_scale)

FBaseStatusBar *StatusBar;

extern int setblocks;

int ST_X, ST_Y;
int SB_state = 3;

FTexture *CrosshairImage;

// [RH] Base blending values (for e.g. underwater)
int BaseBlendR, BaseBlendG, BaseBlendB;
float BaseBlendA;

// Stretch status bar to full screen width?
CUSTOM_CVAR (Bool, st_scale, true, CVAR_ARCHIVE)
{
	if (StatusBar)
	{
		StatusBar->SetScaled (self);
		setsizeneeded = true;
	}
}

CUSTOM_CVAR (Int, crosshair, 0, CVAR_ARCHIVE|CVAR_GLOBALCONFIG)
{
	int num = self;
	char name[16], size;
	int lump;

	if (CrosshairImage != NULL)
	{
		CrosshairImage->Unload ();
	}
	if (num == 0)
	{
		CrosshairImage = NULL;
		return;
	}
	if (num < 0)
	{
		num = -num;
	}
	size = (SCREENWIDTH < 640) ? 'S' : 'B';
	sprintf (name, "XHAIR%c%d", size, num);
	if ((lump = Wads.CheckNumForName (name)) == -1)
	{
		sprintf (name, "XHAIR%c1", size);
		if ((lump = Wads.CheckNumForName (name)) == -1)
		{
			strcpy (name, "XHAIRS1");
		}
	}
	CrosshairImage = TexMan[TexMan.AddPatch (name)];
}

CVAR (Color, crosshaircolor, 0xff0000, CVAR_ARCHIVE|CVAR_GLOBALCONFIG);
CVAR (Bool, crosshairhealth, true, CVAR_ARCHIVE|CVAR_GLOBALCONFIG);
CVAR (Bool, crosshairscale, false, CVAR_ARCHIVE|CVAR_GLOBALCONFIG);
CVAR (Bool, crosshairgrow, false, CVAR_ARCHIVE|CVAR_GLOBALCONFIG);

CVAR (Bool, idmypos, false, 0);

// [RH] Amount of red flash for up to 114 damage points. Calculated by hand
//		using a logarithmic scale and my trusty HP48G.
byte FBaseStatusBar::DamageToAlpha[114] =
{
	  0,   8,  16,  23,  30,  36,  42,  47,  53,  58,  62,  67,  71,  75,  79,
	 83,  87,  90,  94,  97, 100, 103, 107, 109, 112, 115, 118, 120, 123, 125,
	128, 130, 133, 135, 137, 139, 141, 143, 145, 147, 149, 151, 153, 155, 157,
	159, 160, 162, 164, 165, 167, 169, 170, 172, 173, 175, 176, 178, 179, 181,
	182, 183, 185, 186, 187, 189, 190, 191, 192, 194, 195, 196, 197, 198, 200,
	201, 202, 203, 204, 205, 206, 207, 209, 210, 211, 212, 213, 214, 215, 216,
	217, 218, 219, 220, 221, 221, 222, 223, 224, 225, 226, 227, 228, 229, 229,
	230, 231, 232, 233, 234, 235, 235, 236, 237
};

//---------------------------------------------------------------------------
//
// Constructor
//
//---------------------------------------------------------------------------

FBaseStatusBar::FBaseStatusBar (int reltop)
{
	Centering = false;
	FixedOrigin = false;
	CrosshairSize = FRACUNIT;
	RelTop = reltop;
	Messages = NULL;
	Displacement = 0;
	CPlayer = NULL;

	SetScaled (st_scale);
}

//---------------------------------------------------------------------------
//
// Destructor
//
//---------------------------------------------------------------------------

FBaseStatusBar::~FBaseStatusBar ()
{
	DHUDMessage *msg;

	msg = Messages;
	while (msg)
	{
		DHUDMessage *next = msg->Next;
		delete msg;
		msg = next;
	}
}

//---------------------------------------------------------------------------
//
// PROC SetScaled
//
//---------------------------------------------------------------------------

void FBaseStatusBar::SetScaled (bool scale)
{
	Scaled = RelTop != 0 && (SCREENWIDTH != 320 && scale);
	if (!Scaled)
	{
		ST_X = (SCREENWIDTH - 320) / 2;
		ST_Y = SCREENHEIGHT - RelTop;
		::ST_Y = ST_Y;
		if (RelTop > 0)
		{
			Displacement = ((ST_Y * 200 / SCREENHEIGHT) - (200 - RelTop))*FRACUNIT/RelTop;
		}
		else
		{
			Displacement = 0;
		}
	}
	else
	{
		bool wide = !(CheckRatio (SCREENWIDTH, SCREENHEIGHT) & 3);
		int basewidth = wide ? 1280 : 960;
		ST_X = 0;
		ST_Y = 200 - RelTop;
		::ST_Y = Scale (ST_Y, SCREENHEIGHT, 200);
		Displacement = 0;
	}
	::ST_X = ST_X;
	SB_state = screen->GetPageCount ();
}

//---------------------------------------------------------------------------
//
// PROC AttachToPlayer
//
//---------------------------------------------------------------------------

void FBaseStatusBar::AttachToPlayer (player_s *player)
{
	CPlayer = player;
	SB_state = screen->GetPageCount ();
}

//---------------------------------------------------------------------------
//
// PROC GetPlayer
//
//---------------------------------------------------------------------------

int FBaseStatusBar::GetPlayer ()
{
	return int(CPlayer - players);
}

//---------------------------------------------------------------------------
//
// PROC MultiplayerChanged
//
//---------------------------------------------------------------------------

void FBaseStatusBar::MultiplayerChanged ()
{
	SB_state = screen->GetPageCount ();
}

//---------------------------------------------------------------------------
//
// PROC Tick
//
//---------------------------------------------------------------------------

void FBaseStatusBar::Tick ()
{
	DHUDMessage *msg = Messages;
	DHUDMessage **prev = &Messages;

	while (msg)
	{
		DHUDMessage *next = msg->Next;

		if (msg->Tick ())
		{
			*prev = next;
			delete msg;
		}
		else
		{
			prev = &msg->Next;
		}
		msg = next;
	}
}

//---------------------------------------------------------------------------
//
// PROC AttachMessage
//
//---------------------------------------------------------------------------

void FBaseStatusBar::AttachMessage (DHUDMessage *msg, DWORD id)
{
	DHUDMessage *old = NULL;
	DHUDMessage **prev;

	old = (id == 0 || id == 0xFFFFFFFF) ? NULL : DetachMessage (id);
	if (old != NULL)
	{
		delete old;
	}

	prev = &Messages;

	// The ID serves as a priority, where lower numbers appear in front of
	// higher numbers. (i.e. The list is sorted in descending order, since
	// it gets drawn back to front.)
	while (*prev != NULL && (*prev)->SBarID > id)
	{
		prev = &(*prev)->Next;
	}

	msg->Next = *prev;
	msg->SBarID = id;
	*prev = msg;
}

//---------------------------------------------------------------------------
//
// PROC DetachMessage
//
//---------------------------------------------------------------------------

DHUDMessage *FBaseStatusBar::DetachMessage (DHUDMessage *msg)
{
	DHUDMessage *probe = Messages;
	DHUDMessage **prev = &Messages;

	while (probe && probe != msg)
	{
		prev = &probe->Next;
		probe = probe->Next;
	}
	if (probe != NULL)
	{
		*prev = probe->Next;
		probe->Next = NULL;
		// Redraw the status bar in case it was covered
		SB_state = screen->GetPageCount ();
	}
	return probe;
}

DHUDMessage *FBaseStatusBar::DetachMessage (DWORD id)
{
	DHUDMessage *probe = Messages;
	DHUDMessage **prev = &Messages;

	while (probe && probe->SBarID != id)
	{
		prev = &probe->Next;
		probe = probe->Next;
	}
	if (probe != NULL)
	{
		*prev = probe->Next;
		probe->Next = NULL;
		// Redraw the status bar in case it was covered
		SB_state = screen->GetPageCount ();
	}
	return probe;
}

//---------------------------------------------------------------------------
//
// PROC DetachAllMessages
//
//---------------------------------------------------------------------------

void FBaseStatusBar::DetachAllMessages ()
{
	DHUDMessage *probe = Messages;

	Messages = NULL;
	while (probe != NULL)
	{
		DHUDMessage *next = probe->Next;
		delete probe;
		probe = next;
	}
}

//---------------------------------------------------------------------------
//
// PROC CheckMessage
//
//---------------------------------------------------------------------------

bool FBaseStatusBar::CheckMessage (DHUDMessage *msg)
{
	DHUDMessage *probe = Messages;
	while (probe && probe != msg)
	{
		probe = probe->Next;
	}
	return (probe == msg);
}

//---------------------------------------------------------------------------
//
// PROC ShowPlayerName
//
//---------------------------------------------------------------------------

void FBaseStatusBar::ShowPlayerName ()
{
	EColorRange color;

	color = (CPlayer == &players[consoleplayer]) ? CR_GOLD : CR_GREEN;
	AttachMessage (new DHUDMessageFadeOut (CPlayer->userinfo.netname,
		1.5f, 0.92f, 0, 0, color, 2.f, 0.35f), MAKE_ID('P','N','A','M'));
}

//---------------------------------------------------------------------------
//
// PROC DrawImage
//
// Draws an image with the status bar's upper-left corner as the origin.
//
//---------------------------------------------------------------------------

void FBaseStatusBar::DrawImage (FTexture *img,
	int x, int y, byte *translation) const
{
	if (img != NULL)
	{
		screen->DrawTexture (img, x + ST_X, y + ST_Y,
			DTA_Translation, translation,
			DTA_320x200, Scaled,
			TAG_DONE);
	}
}

//---------------------------------------------------------------------------
//
// PROC DrawImage
//
// Draws a translucent image with the status bar's upper-left corner as the
// origin.
//
//---------------------------------------------------------------------------

void FBaseStatusBar::DrawFadedImage (FTexture *img,
	int x, int y, fixed_t shade) const
{
	if (img != NULL)
	{
		screen->DrawTexture (img, x + ST_X, y + ST_Y,
			DTA_Alpha, shade,
			DTA_320x200, Scaled,
			TAG_DONE);
	}
}

//---------------------------------------------------------------------------
//
// PROC DrawPartialImage
//
// Draws a portion of an image with the status bar's upper-left corner as
// the origin. The image should be the same size as the status bar.
// Used for Doom's status bar.
//
//---------------------------------------------------------------------------

void FBaseStatusBar::DrawPartialImage (FTexture *img, int wx, int ww) const
{
	if (img != NULL)
	{
		screen->DrawTexture (img, ST_X, ST_Y,
			DTA_WindowLeft, wx,
			DTA_WindowRight, wx + ww,
			DTA_320x200, Scaled,
			TAG_DONE);
	}
}

//---------------------------------------------------------------------------
//
// PROC DrINumber
//
// Draws a three digit number.
//
//---------------------------------------------------------------------------

void FBaseStatusBar::DrINumber (signed int val, int x, int y, int imgBase) const
{
	int oldval;

	if (val > 999)
		val = 999;
	oldval = val;
	if (val < 0)
	{
		if (val < -9)
		{
			DrawImage (Images[imgLAME], x+1, y+1);
			return;
		}
		val = -val;
		DrawImage (Images[imgBase+val], x+18, y);
		DrawImage (Images[imgNEGATIVE], x+9, y);
		return;
	}
	if (val > 99)
	{
		DrawImage (Images[imgBase+val/100], x, y);
	}
	val = val % 100;
	if (val > 9 || oldval > 99)
	{
		DrawImage (Images[imgBase+val/10], x+9, y);
	}
	val = val % 10;
	DrawImage (Images[imgBase+val], x+18, y);
}

//---------------------------------------------------------------------------
//
// PROC DrBNumber
//
// Draws an x digit number using the big font.
//
//---------------------------------------------------------------------------

void FBaseStatusBar::DrBNumber (signed int val, int x, int y, int size) const
{
	int xpos;
	int index;
	int w, h;
	bool neg;
	int i;
	int power;
	FTexture *pic = Images[imgBNumbers+3];

	if (pic != NULL)
	{
		w = pic->GetWidth ();
		h = pic->GetHeight ();
	}
	else
	{
		w = h = 0;
	}

	xpos = x + w/2 + w*size;

	for (i = size-1, power = 10; i > 0; i--)
	{
		power *= 10;
	}

	if (val >= power)
	{
		val = power - 1;
	}
	if ( (neg = val < 0) )
	{
		if (size == 2 && val < -9)
		{
			val = -9;
		}
		else if (size == 3 && val < -99)
		{
			val = -99;
		}
		val = -val;
		size--;
	}
	if (val == 0)
	{
		pic = Images[imgBNumbers];
		if (pic != NULL)
		{
			DrawImage (pic, xpos - pic->GetWidth()/2 - w, y);
		}
		return;
	}
	while (val != 0 && size--)
	{
		xpos -= w;
		int oldval = val;
		val /= 10;
		index = imgBNumbers + (oldval - val*10);
		pic = Images[index];
		if (pic != NULL)
		{
			DrawImage (pic, xpos - pic->GetWidth()/2, y);
		}
	}
	if (neg)
	{
		xpos -= w;
		pic = Images[imgBNEGATIVE];
		if (pic != NULL)
		{
			DrawImage (pic, xpos - pic->GetWidth()/2, y);
		}
	}
}

//---------------------------------------------------------------------------
//
// PROC DrSmallNumber
//
// Draws a small three digit number.
//
//---------------------------------------------------------------------------

void FBaseStatusBar::DrSmallNumber (int val, int x, int y) const
{
	int digit = 0;

	if (val > 999)
	{
		val = 999;
	}
	if (val > 99)
	{
		digit = val / 100;
		DrawImage (Images[imgSmNumbers + digit], x, y);
		val -= digit * 100;
	}
	if (val > 9 || digit)
	{
		digit = val / 10;
		DrawImage (Images[imgSmNumbers + digit], x+4, y);
		val -= digit * 10;
	}
	DrawImage (Images[imgSmNumbers + val], x+8, y);
}

//---------------------------------------------------------------------------
//
// PROC DrINumberOuter
//
// Draws a number outside the status bar, possibly scaled.
//
//---------------------------------------------------------------------------

void FBaseStatusBar::DrINumberOuter (signed int val, int x, int y, bool center, int w) const
{
	bool negative = false;

	x += w*2;
	if (val < 0)
	{
		negative = true;
		val = -val;
	}
	else if (val == 0)
	{
		screen->DrawTexture (Images[imgINumbers], x + 1, y + 1,
			DTA_FillColor, 0, DTA_Alpha, HR_SHADOW,
			DTA_HUDRules, center ? HUD_HorizCenter : HUD_Normal, TAG_DONE);
		screen->DrawTexture (Images[imgINumbers], x, y,
			DTA_HUDRules, center ? HUD_HorizCenter : HUD_Normal, TAG_DONE);
		return;
	}

	int oval = val;
	int ox = x;

	// First the shadow
	while (val != 0)
	{
		screen->DrawTexture (Images[imgINumbers + val % 10], x + 1, y + 1,
			DTA_FillColor, 0, DTA_Alpha, HR_SHADOW,
			DTA_HUDRules, center ? HUD_HorizCenter : HUD_Normal, TAG_DONE);
		x -= w;
		val /= 10;
	}
	if (negative)
	{
		screen->DrawTexture (Images[imgNEGATIVE], x + 1, y + 1,
			DTA_FillColor, 0, DTA_Alpha, HR_SHADOW,
			DTA_HUDRules, center ? HUD_HorizCenter : HUD_Normal, TAG_DONE);
	}

	// Then the real deal
	val = oval;
	x = ox;
	while (val != 0)
	{
		screen->DrawTexture (Images[imgINumbers + val % 10], x, y,
			DTA_HUDRules, center ? HUD_HorizCenter : HUD_Normal, TAG_DONE);
		x -= w;
		val /= 10;
	}
	if (negative)
	{
		screen->DrawTexture (Images[imgNEGATIVE], x, y,
			DTA_HUDRules, center ? HUD_HorizCenter : HUD_Normal, TAG_DONE);
	}
}

//---------------------------------------------------------------------------
//
// PROC DrBNumberOuter
//
// Draws a three digit number using the big font outside the status bar.
//
//---------------------------------------------------------------------------

void FBaseStatusBar::DrBNumberOuter (signed int val, int x, int y, int size) const
{
	int xpos;
	int w;
	bool negative = false;
	FTexture *pic;

	pic = Images[imgBNumbers+3];
	if (pic != NULL)
	{
		w = pic->GetWidth();
	}
	else
	{
		w = 0;
	}

	xpos = x + w/2 + (size-1)*w;

	if (val == 0)
	{
		pic = Images[imgBNumbers];
		if (pic != NULL)
		{
			screen->DrawTexture (pic, xpos - pic->GetWidth()/2 + 2, y + 2,
				DTA_HUDRules, HUD_Normal,
				DTA_Alpha, HR_SHADOW,
				DTA_FillColor, 0,
				TAG_DONE);
			screen->DrawTexture (pic, xpos - pic->GetWidth()/2, y,
				DTA_HUDRules, HUD_Normal,
				TAG_DONE);
		}
		return;
	}
	else if (val < 0)
	{
		negative = true;
		val = -val;
	}

	int oval = val;
	int oxpos = xpos;

	// Draw shadow first
	while (val != 0)
	{
		pic = Images[val % 10 + imgBNumbers];
		if (pic != NULL)
		{
			screen->DrawTexture (pic, xpos - pic->GetWidth()/2 + 2, y + 2,
				DTA_HUDRules, HUD_Normal,
				DTA_Alpha, HR_SHADOW,
				DTA_FillColor, 0,
				TAG_DONE);
		}
		val /= 10;
		xpos -= w;
	}
	if (negative)
	{
		pic = Images[imgBNEGATIVE];
		if (pic != NULL)
		{
			screen->DrawTexture (pic, xpos - pic->GetWidth()/2 + 2, y + 2,
				DTA_HUDRules, HUD_Normal,
				DTA_Alpha, HR_SHADOW,
				DTA_FillColor, 0,
				TAG_DONE);
		}
	}

	// Then draw the real thing
	val = oval;
	xpos = oxpos;
	while (val != 0)
	{
		pic = Images[val % 10 + imgBNumbers];
		if (pic != NULL)
		{
			screen->DrawTexture (pic, xpos - pic->GetWidth()/2, y,
				DTA_HUDRules, HUD_Normal,
				TAG_DONE);
		}
		val /= 10;
		xpos -= w;
	}
	if (negative)
	{
		pic = Images[imgBNEGATIVE];
		if (pic != NULL)
		{
			screen->DrawTexture (pic, xpos - pic->GetWidth()/2, y,
				DTA_HUDRules, HUD_Normal,
				TAG_DONE);
		}
	}
}

//---------------------------------------------------------------------------
//
// PROC DrBNumberOuter
//
// Draws a three digit number using the real big font outside the status bar.
//
//---------------------------------------------------------------------------

void FBaseStatusBar::DrBNumberOuterFont (signed int val, int x, int y, int size) const
{
	int xpos;
	int w, v;
	bool negative = false;
	FTexture *pic;

	w = 0;
	BigFont->GetChar ('0', &w);

	if (w > 1)
	{
		w--;
	}
	xpos = x + w/2 + (size-1)*w;

	if (val == 0)
	{
		pic = BigFont->GetChar ('0', &v);
		screen->DrawTexture (pic, xpos - v/2 + 2, y + 2,
			DTA_HUDRules, HUD_Normal,
			DTA_Alpha, HR_SHADOW,
			DTA_FillColor, 0,
			DTA_Translation, BigFont->GetColorTranslation (CR_UNTRANSLATED),
			TAG_DONE);
		screen->DrawTexture (pic, xpos - v/2, y,
			DTA_HUDRules, HUD_Normal,
			DTA_Translation, BigFont->GetColorTranslation (CR_UNTRANSLATED),
			TAG_DONE);
		return;
	}
	else if (val < 0)
	{
		negative = true;
		val = -val;
	}

	int oval = val;
	int oxpos = xpos;

	// First the shadow
	while (val != 0)
	{
		pic = BigFont->GetChar ('0' + val % 10, &v);
		screen->DrawTexture (pic, xpos - v/2 + 2, y + 2,
			DTA_HUDRules, HUD_Normal,
			DTA_Alpha, HR_SHADOW,
			DTA_FillColor, 0,
			DTA_Translation, BigFont->GetColorTranslation (CR_UNTRANSLATED),
			TAG_DONE);
		val /= 10;
		xpos -= w;
	}
	if (negative)
	{
		pic = BigFont->GetChar ('-', &v);
		if (pic != NULL)
		{
			screen->DrawTexture (pic, xpos - v/2 + 2, y + 2,
				DTA_HUDRules, HUD_Normal,
				DTA_Alpha, HR_SHADOW,
				DTA_FillColor, 0,
				DTA_Translation, BigFont->GetColorTranslation (CR_UNTRANSLATED),
				TAG_DONE);
		}
	}

	// Then the foreground number
	val = oval;
	xpos = oxpos;
	while (val != 0)
	{
		pic = BigFont->GetChar ('0' + val % 10, &v);
		screen->DrawTexture (pic, xpos - v/2, y,
			DTA_HUDRules, HUD_Normal,
			DTA_Translation, BigFont->GetColorTranslation (CR_UNTRANSLATED),
			TAG_DONE);
		val /= 10;
		xpos -= w;
	}
	if (negative)
	{
		pic = BigFont->GetChar ('-', &v);
		if (pic != NULL)
		{
			screen->DrawTexture (pic, xpos - v/2, y,
				DTA_HUDRules, HUD_Normal,
				DTA_Translation, BigFont->GetColorTranslation (CR_UNTRANSLATED),
				TAG_DONE);
		}
	}
}

//---------------------------------------------------------------------------
//
// PROC DrSmallNumberOuter
//
// Draws a small three digit number outside the status bar.
//
//---------------------------------------------------------------------------

void FBaseStatusBar::DrSmallNumberOuter (int val, int x, int y, bool center) const
{
	int digit = 0;

	if (val > 999)
	{
		val = 999;
	}
	if (val > 99)
	{
		digit = val / 100;
		screen->DrawTexture (Images[imgSmNumbers + digit], x, y,
			DTA_HUDRules, center ? HUD_HorizCenter : HUD_Normal, TAG_DONE);
		val -= digit * 100;
	}
	if (val > 9 || digit)
	{
		digit = val / 10;
		screen->DrawTexture (Images[imgSmNumbers + digit], x+4, y,
			DTA_HUDRules, center ? HUD_HorizCenter : HUD_Normal, TAG_DONE);
		val -= digit * 10;
	}
	screen->DrawTexture (Images[imgSmNumbers + val], x+8, y,
		DTA_HUDRules, center ? HUD_HorizCenter : HUD_Normal, TAG_DONE);
}

//---------------------------------------------------------------------------
//
// RefreshBackground
//
//---------------------------------------------------------------------------

void FBaseStatusBar::RefreshBackground () const
{
	int x, x2, y, i, ratio;

	if (SCREENWIDTH > 320)
	{
		ratio = CheckRatio (SCREENWIDTH, SCREENHEIGHT);
		x = !(ratio & 3) || !Scaled ? ST_X : SCREENWIDTH*(48-BaseRatioSizes[ratio][3])/(48*2);
		if (x > 0)
		{
			y = x == ST_X ? ST_Y : ::ST_Y;
			x2 = !(ratio & 3) || !Scaled ? ST_X+320 :
				SCREENWIDTH - (SCREENWIDTH*(48-BaseRatioSizes[ratio][3])+48*2-1)/(48*2);
			R_DrawBorder (0, y, x, SCREENHEIGHT);
			R_DrawBorder (x2, y, SCREENWIDTH, SCREENHEIGHT);

			if (Scaled && ::ST_Y + RelTop*SCREENHEIGHT/200 != SCREENHEIGHT)
			{ // Fill the thin line beneath the status bar that we got thanks to rounding error
				R_DrawBorder (x, SCREENHEIGHT-1, x2, SCREENHEIGHT);
			}

			if (setblocks >= 10)
			{
				const gameborder_t *border = gameinfo.border;

				for (i = x - border->size; i > -border->size; i -= border->size)
				{
					screen->DrawTexture (TexMan[border->b], i, y, TAG_DONE);
				}
				for (i = x2; i < SCREENWIDTH; i += border->size)
				{
					screen->DrawTexture (TexMan[border->b], i, y, TAG_DONE);
				}
			}
		}
	}
}

//---------------------------------------------------------------------------
//
// DrawCrosshair
//
//---------------------------------------------------------------------------

void FBaseStatusBar::DrawCrosshair ()
{
	static DWORD prevcolor = 0xffffffff;
	static int palettecolor = 0;

	DWORD color;
	fixed_t size;
	int w, h;

	if (CrosshairSize > FRACUNIT)
	{
		CrosshairSize -= XHAIRSHRINKSIZE;
		if (CrosshairSize < FRACUNIT)
		{
			CrosshairSize = FRACUNIT;
		}
	}

	// Don't draw the crosshair in chasecam mode
	if (players[consoleplayer].cheats & CF_CHASECAM)
		return;

	// Don't draw the crosshair if there is none
	if (CrosshairImage == NULL || gamestate == GS_TITLELEVEL)
	{
		return;
	}

	if (crosshairscale)
	{
		size = SCREENHEIGHT * FRACUNIT / 200;
	}
	else
	{
		size = FRACUNIT;
	}

	if (crosshairgrow)
	{
		size = FixedMul (size, CrosshairSize);
	}
	w = (CrosshairImage->GetWidth() * size) >> FRACBITS;
	h = (CrosshairImage->GetHeight() * size) >> FRACBITS;

	if (crosshairhealth)
	{
		int health = CPlayer->health;

		if (health >= 85)
		{
			color = 0x00ff00;
		}
		else 
		{
			int red, green;
			health -= 25;
			if (health < 0)
			{
				health = 0;
			}
			if (health < 30)
			{
				red = 255;
				green = health * 255 / 30;
			}
			else
			{
				red = (60 - health) * 255 / 30;
				green = 255;
			}
			color = (red<<16) | (green<<8);
		}
	}
	else
	{
		color = crosshaircolor;
	}

	if (color != prevcolor)
	{
		prevcolor = color;
		palettecolor = ColorMatcher.Pick (RPART(color), GPART(color), BPART(color));
	}

	screen->DrawTexture (CrosshairImage,
		realviewwidth / 2 + viewwindowx,
		realviewheight / 2 + viewwindowy,
		DTA_DestWidth, w,
		DTA_DestHeight, h,
		DTA_AlphaChannel, true,
		DTA_FillColor, palettecolor,
		TAG_DONE);
}

//---------------------------------------------------------------------------
//
// FlashCrosshair
//
//---------------------------------------------------------------------------

void FBaseStatusBar::FlashCrosshair ()
{
	CrosshairSize = XHAIRPICKUPSIZE;
}

//---------------------------------------------------------------------------
//
// DrawMessages
//
//---------------------------------------------------------------------------

void FBaseStatusBar::DrawMessages (int bottom) const
{
	DHUDMessage *msg = Messages;
	while (msg)
	{
		DHUDMessage *next = msg->Next;
		msg->Draw (bottom);
		msg = next;
	}
}

//---------------------------------------------------------------------------
//
// Draw
//
//---------------------------------------------------------------------------

void FBaseStatusBar::Draw (EHudState state)
{
	float blend[4];
	char line[64+10];

	blend[0] = blend[1] = blend[2] = blend[3] = 0;
	BlendView (blend);

	if ((SB_state != 0 || BorderNeedRefresh) && state == HUD_StatusBar)
	{
		RefreshBackground ();
	}

	if (idmypos)
	{ // Draw current coordinates
		int height = screen->Font->GetHeight();
		int y = ::ST_Y - height;
		char labels[3] = { 'X', 'Y', 'Z' };
		fixed_t *value;
		int i;

		if (gameinfo.gametype == GAME_Strife)
		{
			y -= height * 4;
		}

		value = &CPlayer->mo->z;
		for (i = 2, value = &CPlayer->mo->z; i >= 0; y -= height, --value, --i)
		{
			sprintf (line, "%c: %ld", labels[i], *value >> FRACBITS);
			screen->DrawText (CR_GREEN, SCREENWIDTH - 80, y, line, TAG_DONE);
			BorderNeedRefresh = screen->GetPageCount();
		}
	}

	if (viewactive)
	{
		if (CPlayer && CPlayer->camera->player)
		{
			DrawCrosshair ();
		}
	}
	else if (automapactive)
	{
		int y, i, time = level.time / TICRATE, height;
		EColorRange highlight = (gameinfo.gametype == GAME_Doom) ?
			CR_UNTRANSLATED : CR_YELLOW;

		height = screen->Font->GetHeight () * CleanYfac;

		// Draw timer
		if (am_showtime)
		{
			sprintf (line, "%02d:%02d:%02d", time/3600, (time%3600)/60, time%60);	// Time
			screen->DrawText (CR_GREY, SCREENWIDTH - 80*CleanXfac, 8, line, DTA_CleanNoMove, true, TAG_DONE);
		}

		// Draw map name
		y = ::ST_Y - height;
		if (gameinfo.gametype == GAME_Heretic && SCREENWIDTH > 320 && !Scaled)
		{
			y -= 8;
		}
		else if (gameinfo.gametype == GAME_Hexen)
		{
			if (Scaled)
			{
				y -= Scale (10, SCREENHEIGHT, 200);
			}
			else
			{
				if (SCREENWIDTH < 640)
				{
					y -= 11;
				}
				else
				{ // Get past the tops of the gargoyles' wings
					y -= 26;
				}
			}
		}
		else if (gameinfo.gametype == GAME_Strife)
		{
			if (Scaled)
			{
				y -= Scale (8, SCREENHEIGHT, 200);
			}
			else
			{
				y -= 8;
			}
		}
		cluster_info_t *cluster = FindClusterInfo (level.cluster);
		i = 0;
		if (cluster == NULL || !(cluster->flags & CLUSTER_HUB))
		{
			i = sprintf (line, "%s: ", level.mapname);
		}
		line[i] = TEXTCOLOR_ESCAPE;
		line[i+1] = CR_GREY + 'A';
		strcpy (&line[i+2], level.level_name);
		screen->DrawText (highlight,
			(SCREENWIDTH - SmallFont->StringWidth (line)*CleanXfac)/2, y, line,
			DTA_CleanNoMove, true, TAG_DONE);

		if (!deathmatch)
		{
			int y = 8;

			// Draw monster count
			if (am_showmonsters)
			{
				sprintf (line, "MONSTERS:"
							   TEXTCOLOR_GREY " %d/%d",
							   level.killed_monsters, level.total_monsters);
				screen->DrawText (highlight, 8, y, line,
					DTA_CleanNoMove, true, TAG_DONE);
				y += height;
			}

			// Draw secret count
			if (am_showsecrets)
			{
				sprintf (line, "SECRETS:"
							   TEXTCOLOR_GREY " %d/%d",
							   level.found_secrets, level.total_secrets);
				screen->DrawText (highlight, 8, y, line,
					DTA_CleanNoMove, true, TAG_DONE);
				y += height;
			}

			// Draw item count
			if (am_showitems)
			{
				sprintf (line, "ITEMS:"
							   TEXTCOLOR_GREY " %d/%d",
							   level.found_items, level.total_items);
				screen->DrawText (highlight, 8, y, line,
					DTA_CleanNoMove, true, TAG_DONE);
			}
		}
	}

	if (noisedebug)
	{
		S_NoiseDebug ();
	}
}

//---------------------------------------------------------------------------
//
// DrawTopStuff
//
//---------------------------------------------------------------------------

void FBaseStatusBar::DrawTopStuff (EHudState state)
{
	if (demoplayback && demover != GAMEVER)
	{
		screen->DrawText (CR_TAN, 0, ST_Y - 40 * CleanYfac,
			"Demo was recorded with a different version\n"
			"of ZDoom. Expect it to go out of sync.",
			DTA_CleanNoMove, true, TAG_DONE);
	}

	DrawPowerups ();

	if (state == HUD_StatusBar)
	{
		DrawMessages (::ST_Y);
	}
	else
	{
		DrawMessages (SCREENHEIGHT);
	}

	DrawConsistancy ();
}

//---------------------------------------------------------------------------
//
// DrawPowerups
//
//---------------------------------------------------------------------------

void FBaseStatusBar::DrawPowerups ()
{
	// Each icon gets a 32x32 block to draw itself in.
	int x, y;
	AInventory *item;

	x = -20;
	y = 17;
	for (item = CPlayer->mo->Inventory; item != NULL; item = item->Inventory)
	{
		if (item->DrawPowerup (x, y))
		{
			x -= POWERUPICONSIZE;
			if (x < -POWERUPICONSIZE*5)
			{
				x = -20;
				y += POWERUPICONSIZE*2;
			}
		}
	}
}

/*
=============
SV_AddBlend
[RH] This is from Q2.
=============
*/
void FBaseStatusBar::AddBlend (float r, float g, float b, float a, float v_blend[4])
{
	float a2, a3;

	if (a <= 0)
		return;
	a2 = v_blend[3] + (1-v_blend[3])*a;	// new total alpha
	a3 = v_blend[3]/a2;		// fraction of color from old

	v_blend[0] = v_blend[0]*a3 + r*(1-a3);
	v_blend[1] = v_blend[1]*a3 + g*(1-a3);
	v_blend[2] = v_blend[2]*a3 + b*(1-a3);
	v_blend[3] = a2;
}

//---------------------------------------------------------------------------
//
// BlendView
//
//---------------------------------------------------------------------------

void FBaseStatusBar::BlendView (float blend[4])
{
	int cnt;

	AddBlend (BaseBlendR / 255.f, BaseBlendG / 255.f, BaseBlendB / 255.f, BaseBlendA, blend);

	// [RH] All powerups can effect the screen blending now
	for (AInventory *item = CPlayer->mo->Inventory; item != NULL; item = item->Inventory)
	{
		PalEntry color = item->GetBlend ();
		if (color.a != 0)
		{
			AddBlend (color.r/255.f, color.g/255.f, color.b/255.f, color.a/255.f, blend);
		}
	}
	if (CPlayer->bonuscount)
	{
		cnt = CPlayer->bonuscount << 3;
		AddBlend (0.8431f, 0.7333f, 0.2706f, cnt > 128 ? 0.5f : cnt / 255.f, blend);
	}

	cnt = DamageToAlpha[MIN (113, CPlayer->damagecount)];
		
	if (cnt)
	{
		if (cnt > 228)
			cnt = 228;

		AddBlend (1.f, 0.f, 0.f, cnt / 255.f, blend);
	}

	// Unlike Doom, I did not have any utility source to look at to find the
	// exact numbers to use here, so I've had to guess by looking at how they
	// affect the white color in Hexen's palette and picking an alpha value
	// that seems reasonable.

	if (CPlayer->poisoncount)
	{
		cnt = MIN (CPlayer->poisoncount, 64);
		AddBlend (0.04f, 0.2571f, 0.f, cnt/93.2571428571f, blend);
	}
	if (CPlayer->hazardcount > 16*TICRATE || (CPlayer->hazardcount & 8))
	{
		AddBlend (0.f, 1.f, 0.f, 0.125f, blend);
	}
	if (CPlayer->mo->DamageType == MOD_ICE)
	{
		AddBlend (0.25f, 0.25f, 0.853f, 0.4f, blend);
	}

	if (CPlayer->camera != NULL)
	{
		player_t *player = (CPlayer->camera->player != NULL) ? CPlayer->camera->player : CPlayer;
		AddBlend (player->BlendR, player->BlendG, player->BlendB, player->BlendA, blend);
	}

	V_SetBlend ((int)(blend[0] * 255.0f), (int)(blend[1] * 255.0f),
				(int)(blend[2] * 255.0f), (int)(blend[3] * 256.0f));
}

void FBaseStatusBar::DrawConsistancy () const
{
	static bool firsttime = true;
	int i;
	char conbuff[64], *buff_p;

	if (!netgame)
		return;

	buff_p = NULL;
	for (i = 0; i < MAXPLAYERS; i++)
	{
		if (playeringame[i] && players[i].inconsistant)
		{
			if (buff_p == NULL)
			{
				strcpy (conbuff, "Out of sync with:");
				buff_p = conbuff + 17;
			}
			*buff_p++ = ' ';
			*buff_p++ = '1' + i;
			*buff_p = 0;
		}
	}

	if (buff_p != NULL)
	{
		if (firsttime)
		{
			firsttime = false;
			if (debugfile)
			{
				fprintf (debugfile, "%s as of tic %d (%d)\n", conbuff,
					players[1-consoleplayer].inconsistant,
					players[1-consoleplayer].inconsistant/ticdup);
			}
#ifdef _DEBUG
			AddCommandString ("showrngs");
#endif
		}
		screen->DrawText (CR_GREEN, 
			(screen->GetWidth() - SmallFont->StringWidth (conbuff)*CleanXfac) / 2,
			0, conbuff, DTA_CleanNoMove, true, TAG_DONE);
		BorderTopRefresh = screen->GetPageCount ();
	}
}

void FBaseStatusBar::FlashItem (const TypeInfo *itemtype)
{
}

void FBaseStatusBar::SetFace (void *)
{
}

void FBaseStatusBar::NewGame ()
{
}

void FBaseStatusBar::SetInteger (int pname, int param)
{
}

void FBaseStatusBar::ShowPop (int popnum)
{
}

void FBaseStatusBar::ReceivedWeapon (AWeapon *weapon)
{
}

void FBaseStatusBar::Serialize (FArchive &arc)
{
	arc << Messages;
}

void FBaseStatusBar::ScreenSizeChanged ()
{
	st_scale.Callback ();
	SB_state = screen->GetPageCount ();

	DHUDMessage *message = Messages;
	while (message != NULL)
	{
		message->ScreenSizeChanged ();
		message = message->Next;
	}
}

//---------------------------------------------------------------------------
//
// ValidateInvFirst
//
// Returns an inventory item that, when drawn as the first item, is sure to
// include the selected item in the inventory bar.
//
//---------------------------------------------------------------------------

AInventory *FBaseStatusBar::ValidateInvFirst (int numVisible) const
{
	AInventory *item;
	int i;

	if (CPlayer->InvFirst == NULL)
	{
		CPlayer->InvFirst = CPlayer->mo->FirstInv();
		if (CPlayer->InvFirst == NULL)
		{ // Nothing to show
			return NULL;
		}
	}

	assert (CPlayer->InvFirst->Owner == CPlayer->mo);

	// If there are fewer than numVisible items shown, see if we can shift the
	// view left to show more.
	for (i = 0, item = CPlayer->InvFirst; item != NULL && i < numVisible; ++i, item = item->NextInv())
	{ }

	while (i < numVisible)
	{
		item = CPlayer->InvFirst->PrevInv ();
		if (item == NULL)
		{
			break;
		}
		else
		{
			CPlayer->InvFirst = item;
			++i;
		}
	}

	if (CPlayer->InvSel == NULL)
	{
		// Nothing selected, so don't move the view.
		return CPlayer->InvFirst == NULL ? CPlayer->mo->Inventory : CPlayer->InvFirst;
	}
	else
	{
		// Check if InvSel is already visible
		for (item = CPlayer->InvFirst, i = numVisible;
			 item != NULL && i != 0;
			 item = item->NextInv(), --i)
		{
			if (item == CPlayer->InvSel)
			{
				return CPlayer->InvFirst;
			}
		}
		// Check if InvSel is to the right of the visible range
		for (i = 1; item != NULL; item = item->NextInv(), ++i)
		{
			if (item == CPlayer->InvSel)
			{
				// Found it. Now advance InvFirst
				for (item = CPlayer->InvFirst; i != 0; --i)
				{
					item = item->NextInv();
				}
				return item;
			}
		}
		// Check if InvSel is to the left of the visible range
		for (item = CPlayer->mo->Inventory;
			item != CPlayer->InvSel;
			item = item->NextInv())
		{ }
		if (item != NULL)
		{
			// Found it, so let it become the first item shown
			return item;
		}
		// Didn't find the selected item, so don't move the view.
		// This should never happen, so let debug builds assert.
		assert (item != NULL);
		return CPlayer->InvFirst;
	}
}

//============================================================================
//
// FBaseStatusBar :: GetCurrentAmmo
//
// Returns the types and amounts of ammo used by the current weapon. If the
// weapon only uses one type of ammo, it is always returned as ammo1.
//
//============================================================================

void FBaseStatusBar::GetCurrentAmmo (AAmmo *&ammo1, AAmmo *&ammo2, int &ammocount1, int &ammocount2) const
{
	if (CPlayer->ReadyWeapon != NULL)
	{
		ammo1 = CPlayer->ReadyWeapon->Ammo1;
		ammo2 = CPlayer->ReadyWeapon->Ammo2;
		if (ammo1 == NULL)
		{
			ammo1 = ammo2;
			ammo2 = NULL;
		}
	}
	else
	{
		ammo1 = ammo2 = NULL;
	}
	ammocount1 = ammo1 != NULL ? ammo1->Amount : 0;
	ammocount2 = ammo2 != NULL ? ammo2->Amount : 0;
}

//============================================================================
//
// CCMD showpop
//
// Asks the status bar to show a pop screen.
//
//============================================================================

CCMD (showpop)
{
void HUD_ShowPop(int pop);

	if (argv.argc() != 2)
	{
		Printf ("Usage: showpop <popnumber>\n");
	}
	else if (StatusBar != NULL)
	{
		int popnum = atoi (argv[1]);
		if (popnum < 0)
		{
			popnum = 0;
		}
		StatusBar->ShowPop (popnum);
		HUD_ShowPop(popnum);	// for the alt hud
	}
}
