/*
** Enhanced heads up 'overlay' for fullscreen
**
**---------------------------------------------------------------------------
** Copyright 2003-2005 Christoph Oelckers
** 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.
**---------------------------------------------------------------------------
**
*/

// NOTE: Some stuff in here might seem a little redundant but I wanted this
// to be as true as possible to my original intent which means that it
// only uses that code from ZDoom's status bar that is the same as any
// copy would be.

#include "doomtype.h"
#include "v_video.h"
#include "gi.h"
#include "c_cvars.h"
#include "w_wad.h"
#include "a_keys.h"
#include "sbar.h"
#include "sc_man.h"
#include "templates.h"

EXTERN_CVAR(Bool,am_follow)
EXTERN_CVAR (Int, con_scaletext)
EXTERN_CVAR (Bool, idmypos)

CVAR(Bool,hud_althudscale, true, CVAR_ARCHIVE)			// Scale the hud to 640x400?
CVAR(Bool,hud_althud, false, CVAR_ARCHIVE)				// Enable/Disable the alternate HUD

														// These are intentionally not the same as in the automap!
CVAR (Bool,  hud_showsecrets,	true,CVAR_ARCHIVE);		// Show secrets on HUD
CVAR (Bool,  hud_showmonsters,	true,CVAR_ARCHIVE);		// Show monster stats on HUD
CVAR (Bool,  hud_showitems,		false,CVAR_ARCHIVE);	// Show item stats on HUD
CVAR (Bool,  hud_showstats,		false,	CVAR_ARCHIVE);	// for stamina and accuracy. 

CVAR (Int, hud_ammo_red, 25, CVAR_ARCHIVE)					// ammo percent less than which status is red    
CVAR (Int, hud_ammo_yellow, 50, CVAR_ARCHIVE)				// ammo percent less is yellow more green        
CVAR (Int, hud_health_red, 25, CVAR_ARCHIVE)				// health amount less than which status is red   
CVAR (Int, hud_health_yellow, 50, CVAR_ARCHIVE)				// health amount less than which status is yellow
CVAR (Int, hud_health_green, 100, CVAR_ARCHIVE)				// health amount above is blue, below is green   
CVAR (Int, hud_armor_red, 25, CVAR_ARCHIVE)					// armor amount less than which status is red    
CVAR (Int, hud_armor_yellow, 50, CVAR_ARCHIVE)				// armor amount less than which status is yellow 
CVAR (Int, hud_armor_green, 100, CVAR_ARCHIVE)				// armor amount above is blue, below is green    

CVAR (Int, hudcolor_titl, CR_YELLOW, CVAR_ARCHIVE)			// color of automap title
CVAR (Int, hudcolor_time, CR_RED, CVAR_ARCHIVE)				// color of level/hub time
CVAR (Int, hudcolor_ltim, CR_ORANGE, CVAR_ARCHIVE)			// color of single level time
CVAR (Int, hudcolor_ttim, CR_GOLD, CVAR_ARCHIVE)			// color of total time
CVAR (Int, hudcolor_xyco, CR_GREEN, CVAR_ARCHIVE)			// color of coordinates

CVAR (Int, hudcolor_statnames, CR_RED, CVAR_ARCHIVE)		// For the letters befóre the stats
CVAR (Int, hudcolor_stats, CR_GREEN, CVAR_ARCHIVE)			// For the stats values themselves


CVAR(Bool, map_point_coordinates, true, CVAR_ARCHIVE|CVAR_GLOBALCONFIG)	// show player or map coordinates?

static FFont * HudFont;						// The font for the health and armor display
static FFont * IndexFont;					// The font for the inventory indices

// Icons
static FTexture * healthpic;				// Health icon
static FTexture * fragpic;					// Frags icon
static FTexture * invgems[4];				// Inventory arrows

static int hudwidth, hudheight;				// current width/height for HUD display
static bool showlog=false;

void AM_GetPosition(fixed_t & x, fixed_t & y);

//---------------------------------------------------------------------------
//
// Draws an image into a box with its bottom center at the bottom
// center of the box. The image is scaled down if it doesn't fit
//
//---------------------------------------------------------------------------
static void DrawImageToBox(FTexture * tex, int x, int y, int w, int h, int trans=0xc000)
{
	float scale1, scale2;

	if (tex)
	{
		int texwidth=tex->GetWidth();
		int texheight=tex->GetHeight();

		if (w<texwidth) scale1=(float)w/texwidth;
		else scale1=1.0f;
		if (h<texheight) scale2=(float)h/texheight;
		else scale2=1.0f;
		if (scale2<scale1) scale1=scale2;

		x+=w>>1;
		y+=h;

		w=(int)(texwidth*scale1);
		h=(int)(texheight*scale1);

		screen->DrawTexture(tex, x, y,
			DTA_KeepRatio, true,
			DTA_VirtualWidth, hudwidth, DTA_VirtualHeight, hudheight, DTA_Alpha, trans, 
			DTA_DestWidth, w, DTA_DestHeight, h, DTA_CenterBottomOffset, 1, TAG_DONE);

	}
}


//---------------------------------------------------------------------------
//
// Draws a text but uses a fixed width for all characters
//
//---------------------------------------------------------------------------

static void DrawHudText(int color, char * text, int x, int y, int trans=0xc000)
{
	int zerowidth = screen->Font->GetCharWidth('0');

	x+=zerowidth/2;
	for(int i=0;text[i];i++)
	{
		screen->DrawChar(color, x, y, text[i],
			DTA_KeepRatio, true,
			DTA_VirtualWidth, hudwidth, DTA_VirtualHeight, hudheight, DTA_Alpha, trans, 
			DTA_CenterBottomOffset, 1, TAG_DONE);
		x+=zerowidth;
	}
}


//---------------------------------------------------------------------------
//
// Draws a numberses a fixed widh for all characters
//
//---------------------------------------------------------------------------

static void DrawHudNumber(int color, int num, int x, int y, int trans=0xc000)
{
	char text[15];

	sprintf(text, "%d", num);
	DrawHudText(color, text, x, y, trans);
}


//===========================================================================
//
// draw the status (number of kills etc)
//
//===========================================================================

static void DrawStatus(player_t * CPlayer, int x, int y)
{
	char tempstr[50];
	int space;
	
	screen->SetFont(SmallFont);

	if (hud_showstats)
	{
		space=SmallFont->StringWidth("Ac: ");

		y-=SmallFont->GetHeight()-1;
		screen->DrawText(hudcolor_statnames, x, y, "Ac:", 
			DTA_KeepRatio, true,
			DTA_VirtualWidth, hudwidth, DTA_VirtualHeight, hudheight, DTA_Alpha, 0xc000, TAG_DONE);

		sprintf(tempstr, "%i ", CPlayer->accuracy);
		screen->DrawText(hudcolor_stats, x+space, y, tempstr,
			DTA_KeepRatio, true,
			DTA_VirtualWidth, hudwidth, DTA_VirtualHeight, hudheight, DTA_Alpha, 0xc000, TAG_DONE);

		y-=SmallFont->GetHeight()-1;
		screen->DrawText(hudcolor_statnames, x, y, "St:", 
			DTA_KeepRatio, true,
			DTA_VirtualWidth, hudwidth, DTA_VirtualHeight, hudheight, DTA_Alpha, 0xc000, TAG_DONE);

		sprintf(tempstr, "%i ", CPlayer->stamina);
		screen->DrawText(hudcolor_stats, x+space, y, tempstr,
			DTA_KeepRatio, true,
			DTA_VirtualWidth, hudwidth, DTA_VirtualHeight, hudheight, DTA_Alpha, 0xc000, TAG_DONE);
	}
	else
		space=SmallFont->StringWidth("K: ");
	
	if (!deathmatch)
	{
		// FIXME: ZDoom doesn't preserve the player's stat counters across hubs so this doesn't
		// work in cooperative hub games
		if (hud_showsecrets)
		{
			y-=SmallFont->GetHeight()-1;
			screen->DrawText(hudcolor_statnames, x, y, "S:", 
				DTA_KeepRatio, true,
				DTA_VirtualWidth, hudwidth, DTA_VirtualHeight, hudheight, DTA_Alpha, 0xc000, TAG_DONE);

			sprintf(tempstr, "%i/%i ", multiplayer? CPlayer->secretcount : level.found_secrets, level.total_secrets);
			screen->DrawText(hudcolor_stats, x+space, y, tempstr,
				DTA_KeepRatio, true,
				DTA_VirtualWidth, hudwidth, DTA_VirtualHeight, hudheight, DTA_Alpha, 0xc000, TAG_DONE);
		}
		
		if (hud_showitems)
		{
			y-=SmallFont->GetHeight()-1;
			screen->DrawText(hudcolor_statnames, x, y, "I:", 
				DTA_KeepRatio, true,
				DTA_VirtualWidth, hudwidth, DTA_VirtualHeight, hudheight, DTA_Alpha, 0xc000, TAG_DONE);

			sprintf(tempstr, "%i/%i ", multiplayer? CPlayer->itemcount : level.found_items, level.total_items);
			screen->DrawText(hudcolor_stats, x+space, y, tempstr,
				DTA_KeepRatio, true,
				DTA_VirtualWidth, hudwidth, DTA_VirtualHeight, hudheight, DTA_Alpha, 0xc000, TAG_DONE);
		}
		
		if (hud_showmonsters)
		{
			y-=SmallFont->GetHeight()-1;
			screen->DrawText(hudcolor_statnames, x, y, "K:", 
				DTA_KeepRatio, true,
				DTA_VirtualWidth, hudwidth, DTA_VirtualHeight, hudheight, DTA_Alpha, 0xc000, TAG_DONE);

			sprintf(tempstr, "%i/%i ", multiplayer? CPlayer->killcount : level.killed_monsters, level.total_monsters);
			screen->DrawText(hudcolor_stats, x+space, y, tempstr,
				DTA_KeepRatio, true,
				DTA_VirtualWidth, hudwidth, DTA_VirtualHeight, hudheight, DTA_Alpha, 0xc000, TAG_DONE);
		}
	}
}


//===========================================================================
//
// draw health
//
//===========================================================================

static void DrawHealth(int health, int x, int y)
{
	// decide on the color first
	int fontcolor =
		health < hud_health_red ? CR_RED :
		health < hud_health_yellow ? CR_GOLD :
		health <= hud_health_green ? CR_GREEN :
		CR_BLUE;
	
	DrawImageToBox(healthpic, x, y, 31, 17);

	screen->SetFont(HudFont);
	DrawHudNumber(fontcolor, health, x + 33, y + 17);
}

//===========================================================================
//
// Draw Armor.
// very similar to drawhealth.
//
//===========================================================================

static void DrawArmor(AInventory * armor, int x, int y)
{
	if (armor)
	{
		int ap=armor->Amount;

		// decide on color
		int fontcolor =
			ap < hud_armor_red ? CR_RED :
			ap < hud_armor_yellow ? CR_GOLD :
			ap <= hud_armor_green ? CR_GREEN :
			CR_BLUE;


		if (ap)
		{
			DrawImageToBox(TexMan[armor->Icon], x, y, 31, 17);

			screen->SetFont(HudFont);
			DrawHudNumber(fontcolor, ap, x + 33, y + 17);
		}
	}
}

//===========================================================================
//
// KEYS
//
//===========================================================================

//---------------------------------------------------------------------------
//
// create a sorted list of the defined keys so 
// this doesn't have to be done each frame
//
//---------------------------------------------------------------------------
static TArray<const TypeInfo*> KeyTypes, UnassignedKeyTypes;

static int STACK_ARGS ktcmp(const void * a, const void * b)
{
	AKey * key1 = (AKey*)GetDefaultByType ( *(const TypeInfo**)a );
	AKey * key2 = (AKey*)GetDefaultByType ( *(const TypeInfo**)b );
	return key1->KeyNumber - key2->KeyNumber;
}

static void SetKeyTypes()
{
	for(int i=0;i<TypeInfo::m_NumTypes;i++)
	{
		const TypeInfo * ti = TypeInfo::m_Types[i];

		if (ti->IsDescendantOf(RUNTIME_CLASS(AKey)))
		{
			AKey * key = (AKey*)GetDefaultByType(ti);

			if (key->Icon!=NULL && key->KeyNumber>0)
			{
				KeyTypes.Push(ti);
			}
			else 
			{
				UnassignedKeyTypes.Push(ti);
			}
		}
	}
	if (KeyTypes.Size())
	{
		qsort(&KeyTypes[0], KeyTypes.Size(), sizeof(KeyTypes[0]), ktcmp);
	}
	else
	{
		// Don't leave the list empty
		const TypeInfo * ti = RUNTIME_CLASS(AKey);
		KeyTypes.Push(ti);
	}
}

//---------------------------------------------------------------------------
//
// Draw one key
//
// Regarding key icons, Doom's are too small, Heretic doesn't have any,
// for Hexen the in-game sprites look better and for Strife it doesn't matter
// so always use the spawn state's sprite instead of the icon here!
//
//---------------------------------------------------------------------------

static void DrawOneKey(int xo, int & x, int & y, int & c, AInventory * inv)
{
	int icon=0;

	if (inv->AltIcon==-1) return;

	if (inv->AltIcon>0) 
	{
		icon = inv->AltIcon;
	}
	else if (inv->SpawnState && inv->SpawnState->sprite.index!=0)
	{
		FState * state = inv->SpawnState;
		if (state &&  (unsigned)state->sprite.index < (unsigned)sprites.Size ())
		{
			spritedef_t * sprdef = &sprites[state->sprite.index];
			spriteframe_t * sprframe = &SpriteFrames[sprdef->spriteframes + state->GetFrame()];
			icon = sprframe->Texture[0];
		}
	}
	if (icon == 0) icon = inv->Icon;

	if (icon > 0)	
	{
		x -= 9;
		DrawImageToBox(TexMan[icon], x, y, 8, 10);
		c++;
		if (c>=10)
		{
			x=xo;
			y-=11;
			c=0;
		}
	}
}

//---------------------------------------------------------------------------
//
// Draw all keys
//
//---------------------------------------------------------------------------

static int DrawKeys(player_t * CPlayer, int x, int y)
{
	int yo=y;
	int xo=x;
	int i;
	int c=0;
	AInventory * inv;

	if (!deathmatch)
	{
		if (KeyTypes.Size()==0) SetKeyTypes();

		// First all keys that are assigned to locks (in reverse order of definition)
		for(i=KeyTypes.Size()-1;i>=0;i--)
		{
			if (inv=CPlayer->mo->FindInventory(KeyTypes[i]))
			{
				DrawOneKey(xo, x, y, c, inv);
			}
		}
		// And now the rest
		for(i=UnassignedKeyTypes.Size()-1;i>=0;i--)
		{
			if (inv=CPlayer->mo->FindInventory(UnassignedKeyTypes[i]))
			{
				DrawOneKey(xo, x, y, c, inv);
			}
		}
	}
	if (x==xo && y!=yo) y+=11;
	return y-11;
}


//---------------------------------------------------------------------------
//
// Drawing Ammo
//
//---------------------------------------------------------------------------
static TArray<const TypeInfo *> orderedammos;

static void AddAmmoToList(AWeapon * weapdef)
{

	for(int i=0; i<2;i++)
	{
		const TypeInfo * ti = i==0? weapdef->AmmoType1 : weapdef->AmmoType2;
		if (ti)
		{
			AAmmo * ammodef=(AAmmo*)GetDefaultByType(ti);

			if (ammodef && !(ammodef->ItemFlags&IF_INVBAR))
			{
				unsigned int j;

				for(j=0;j<orderedammos.Size();j++)
				{
					if (ti == orderedammos[j]) break;
				}
				if (j==orderedammos.Size()) orderedammos.Push(ti);
			}
		}
	}
}

static int DrawAmmo(player_t * CPlayer, int x, int y)
{

	int i,j,k;
	char buf[256];
	AInventory * inv;

	AWeapon * wi=CPlayer->ReadyWeapon;

	orderedammos.Clear();

	// Order ammo by use of weapons in the weapon slots
	// Do not check for actual presence in the inventory!
	// We want to show all ammo types that can be used by
	// the weapons in the weapon slots.
	for (k=0;k<NUM_WEAPON_SLOTS;k++) for(j=0;j<MAX_WEAPONS_PER_SLOT;j++)
	{
		const TypeInfo * weap = LocalWeapons.Slots[k].GetWeapon(j);

		if (weap) AddAmmoToList((AWeapon*)GetDefaultByType(weap));
	}

	// Now check for the remaining weapons that are in the inventory but not in the weapon slots
	for(inv=CPlayer->mo->Inventory;inv;inv=inv->Inventory)
	{
		if (inv->IsKindOf(RUNTIME_CLASS(AWeapon)))
		{
			AddAmmoToList((AWeapon*)inv);
		}
	}

	// ok, we got all ammo types. Now draw the list back to front (bottom to top)

	int def_width=ConFont->StringWidth("000/000");
	x-=def_width;
	screen->SetFont(ConFont);
	int yadd=ConFont->GetHeight();

	for(i=orderedammos.Size()-1;i>=0;i--)
	{

		const TypeInfo * type = orderedammos[i];
		AAmmo * ammoitem = (AAmmo*)CPlayer->mo->FindInventory(type);

		AAmmo * inv = ammoitem? ammoitem : (AAmmo*)GetDefaultByType(orderedammos[i]);
		int icon = inv->AltIcon!=0? inv->AltIcon : inv->Icon;
		if (icon<=0) continue;

		int trans= (wi && (type==wi->AmmoType1 || type==wi->AmmoType2)) ? 0xc000:0x6000;

		int maxammo = inv->MaxAmount;
		int ammo = ammoitem? ammoitem->Amount : 0;

		sprintf(buf,"%3d/%3d", ammo,maxammo);

		int tex_width= clamp<int>(ConFont->StringWidth(buf)-def_width, 0, 1000);

		int fontcolor=( !maxammo ? CR_GRAY :    
						 ammo < ( (maxammo * hud_ammo_red) / 100) ? CR_RED :   
						 ammo < ( (maxammo * hud_ammo_yellow) / 100) ? CR_GOLD : CR_GREEN );

		DrawHudText(fontcolor, buf, x-tex_width, y+yadd, trans);
		DrawImageToBox(TexMan[icon], x-20, y, 16, 8, trans);
		y-=10;
	}
	return y;
}


//---------------------------------------------------------------------------
//
// Weapons List
//
//---------------------------------------------------------------------------

static void DrawOneWeapon(player_t * CPlayer, int x, int & y, AWeapon * weapon)
{
	int trans;
	int picnum=-1;

	// Powered up weapons and inherited sister weapons are not displayed.
	if (weapon->WeaponFlags & WIF_POWERED_UP) return;
	if (weapon->SisterWeapon && weapon->IsKindOf(RUNTIME_TYPE(weapon->SisterWeapon))) return;

	trans=0x6666;
	if (CPlayer->ReadyWeapon)
	{
		if (weapon==CPlayer->ReadyWeapon || weapon==CPlayer->ReadyWeapon->SisterWeapon) trans=0xd999;
	}

	FState * state;
	
	picnum = weapon->AltIcon? weapon->AltIcon : weapon->Icon;

	if (picnum == 0)
	{
		if (weapon->SpawnState && weapon->SpawnState->sprite.index!=0)
		{
			state = weapon->SpawnState;
		}
		// no spawn state - now try the ready state
		else if (weapon->ReadyState && weapon->ReadyState->sprite.index!=0)
		{
			state = weapon->ReadyState;
		}
		if (state &&  (unsigned)state->sprite.index < (unsigned)sprites.Size ())
		{
			spritedef_t * sprdef = &sprites[state->sprite.index];
			spriteframe_t * sprframe = &SpriteFrames[sprdef->spriteframes + state->GetFrame()];

			picnum = sprframe->Texture[0];
		}
	}

	if (picnum > 0)
	{
		FTexture * tex = TexMan[picnum];
		int w = tex->GetWidth();
		int h = tex->GetHeight();
		int rh;
		if (w>h) rh=8;
		else rh=16,y-=8;		// don't draw tall sprites too small!
		DrawImageToBox(tex, x-24, y, 20, rh, trans);
		y-=10;
	}
}


static void DrawWeapons(player_t * CPlayer, int x, int y)
{
	int k,j;
	AInventory * inv;

	// First draw all weapons in the inventory that are not assigned to a weapon slot
	for(inv=CPlayer->mo->Inventory;inv;inv=inv->Inventory)
	{
		int slot, index;
		if (inv->IsKindOf(RUNTIME_CLASS(AWeapon)) && !LocalWeapons.LocateWeapon(RUNTIME_TYPE(inv), &slot, &index))
		{
			DrawOneWeapon(CPlayer, x, y, static_cast<AWeapon*>(inv));
		}
	}

	// And now everything in the weapon slots back to front
	for (k=NUM_WEAPON_SLOTS-1;k>=0;k--) for(j=MAX_WEAPONS_PER_SLOT-1;j>=0;j--)
	{
		const TypeInfo * weap = LocalWeapons.Slots[k].GetWeapon(j);
		if (weap) 
		{
			inv=CPlayer->mo->FindInventory(weap);
			if (inv) 
			{
				DrawOneWeapon(CPlayer, x, y, static_cast<AWeapon*>(inv));
			}
		}
	}
}


//---------------------------------------------------------------------------
//
// Draw the Inventory
//
//---------------------------------------------------------------------------

static void DrawInventory(player_t * CPlayer, int x,int y)
{
	AInventory * rover;
	int numitems = (hudwidth - 2*x) / 32;
	int i;

	CPlayer->InvFirst = rover = StatusBar->ValidateInvFirst(numitems);
	if (rover!=NULL)
	{
		if(rover->PrevInv())
		{
			screen->DrawTexture(invgems[!!(level.time&4)], x-10, y,
				DTA_KeepRatio, true,
				DTA_VirtualWidth, hudwidth, DTA_VirtualHeight, hudheight, DTA_Alpha, 0x6666, TAG_DONE);
		}

		for(i=0;i<numitems && rover;rover=rover->NextInv())
		{
			if (rover->Amount && rover->AltIcon>=0 && (rover->Icon>0 || rover->AltIcon>0) )
			{
				int trans = rover==CPlayer->InvSel ? FRACUNIT : 0x6666;

				DrawImageToBox(TexMan[rover->AltIcon? rover->AltIcon : rover->Icon], x, y, 19, 25, trans);
				if (rover->Amount>1)
				{
					char buffer[10];
					int xx;
					sprintf(buffer,"%d",rover->Amount);
					if (rover->Amount>=1000) xx = 32 - IndexFont->StringWidth(buffer);
					else xx = 22;

					screen->SetFont(IndexFont);
					screen->DrawText(CR_GOLD, x+xx, y+20, buffer, 
						DTA_KeepRatio, true,
						DTA_VirtualWidth, hudwidth, DTA_VirtualHeight, hudheight, DTA_Alpha, trans, TAG_DONE);
				}
				
				x+=32;
				i++;
			}
		}
		if(rover)
		{
			screen->DrawTexture(invgems[2 + !!(level.time&4)], x-10, y,
				DTA_KeepRatio, true,
				DTA_VirtualWidth, hudwidth, DTA_VirtualHeight, hudheight, DTA_Alpha, 0x6666, TAG_DONE);
		}
	}
}

//---------------------------------------------------------------------------
//
// Draw the Frags
//
//---------------------------------------------------------------------------

static void DrawFrags(player_t * CPlayer, int x, int y)
{
	DrawImageToBox(fragpic, x, y, 31, 17);

	screen->SetFont(HudFont);
	DrawHudNumber(CR_GRAY, CPlayer->fragcount, x + 33, y + 17);
}



//---------------------------------------------------------------------------
//
// PROC DrawCoordinates
//
//---------------------------------------------------------------------------

static void DrawCoordinates(player_t * CPlayer)
{
	fixed_t x;
	fixed_t y;
	fixed_t z;
	char coordstr[18];
	int h=SmallFont->GetHeight()+1;

	
	if (!map_point_coordinates || !automapactive) 
	{
		x=CPlayer->mo->x;
		y=CPlayer->mo->y;                     
		z=CPlayer->mo->z;
	}
	else 
	{
		AM_GetPosition(x,y);
		z = R_PointInSubsector(x, y)->sector->floorplane.ZatPoint(x, y);
	}

	int vwidth = con_scaletext!=2? SCREENWIDTH : SCREENWIDTH/2;
	int vheight = con_scaletext!=2? SCREENHEIGHT : SCREENHEIGHT/2;
	int xpos = vwidth - SmallFont->StringWidth("X:-99999");
	int ypos = 18;

	sprintf(coordstr, "X: %d", x>>FRACBITS);
	screen->DrawText(hudcolor_xyco, xpos, ypos, coordstr,
		DTA_KeepRatio, true,
		DTA_VirtualWidth, vwidth, DTA_VirtualHeight, vheight, TAG_DONE);

	sprintf(coordstr, "Y: %d", y>>FRACBITS);
	screen->DrawText(hudcolor_xyco, xpos, ypos+h, coordstr,
		DTA_KeepRatio, true,
		DTA_VirtualWidth, vwidth, DTA_VirtualHeight, vheight, TAG_DONE);

	sprintf(coordstr, "Z: %d", z>>FRACBITS);
	screen->DrawText(hudcolor_xyco, xpos, ypos+2*h, coordstr,
		DTA_KeepRatio, true,
		DTA_VirtualWidth, vwidth, DTA_VirtualHeight, vheight, TAG_DONE);
}


//---------------------------------------------------------------------------
//
// draw the overlay
//
//---------------------------------------------------------------------------
void HUD_ShowPop(int pop)
{
	if (pop == FBaseStatusBar::POP_Log)
	{
		showlog=!showlog;
	}
	else if (pop == FBaseStatusBar::POP_None) 
	{
		showlog=false;
	}
}

void DrawHUD()
{
	player_t * CPlayer = StatusBar->CPlayer;

	players[consoleplayer].inventorytics = 0;
	if (hud_althudscale && SCREENWIDTH>640) 
	{
		// The HUD has been optimized for 640x400 but for the software renderer
		// just double the pixels to reduce scaling artifacts.
		// (Too bad that I don't get the math for widescreen right so I have to do
		// it for widescreen in hardware rendering, too...)
		hudwidth=SCREENWIDTH/2;
		if (currentrenderer==0 || WidescreenRatio != 0) hudheight=SCREENHEIGHT/2;
		else hudheight = hudwidth * 30 / BaseRatioSizes[WidescreenRatio][3];
	}
	else
	{
		hudwidth=SCREENWIDTH;
		hudheight=SCREENHEIGHT;
	}

	float blend[4] = {0,0,0,0};
	StatusBar->BlendView (blend);

	if (!automapactive)
	{
		int i;

		// No HUD in the title level!
		if (gamestate == GS_TITLELEVEL || !CPlayer) return;

		if (!deathmatch) DrawStatus(CPlayer, 5, hudheight-50);
		else
		{
			DrawStatus(CPlayer, 5, hudheight-75);
			DrawFrags(CPlayer, 5, hudheight-70);
		}
		DrawHealth(CPlayer->health, 5, hudheight-45);
		// Yes, that doesn't work properly for Hexen but frankly, I have no
		// idea how to make a meaningful value out of Hexen's armor system!
		DrawArmor(CPlayer->mo->FindInventory(RUNTIME_CLASS(ABasicArmor)), 5, hudheight-20);
		i=DrawKeys(CPlayer, hudwidth-4, hudheight-10);
		i=DrawAmmo(CPlayer, hudwidth-5, i);
		DrawWeapons(CPlayer, hudwidth-5, i);
		DrawInventory(CPlayer, 144, hudheight-28);
		screen->SetFont(SmallFont);
		if (CPlayer->camera->player)
		{
			StatusBar->DrawCrosshair();
		}
		if (showlog)
		{
			if (CPlayer->LogText && *CPlayer->LogText)
			{
				int linelen = hudwidth<640? Scale(hudwidth,9,10)-40 : 560;
				brokenlines_t *lines = V_BreakLines (linelen, CPlayer->LogText);
				int height = 20;

				screen->SetFont(SmallFont);
				for (i = 0; lines[i].width != -1; i++) height += SmallFont->GetHeight () + 1;

				int x,y,w;

				if (linelen<560)
				{
					x=hudwidth/20;
					y=hudheight/8;
					w=hudwidth-2*x;
				}
				else
				{
					x=(hudwidth>>1)-300;
					y=hudheight*3/10-(height>>1);
					if (y<0) y=0;
					w=600;
				}
				screen->Dim(0, 0.5f, Scale(x, SCREENWIDTH, hudwidth), Scale(y, SCREENHEIGHT, hudheight), 
									 Scale(w, SCREENWIDTH, hudwidth), Scale(height, SCREENHEIGHT, hudheight));
				x+=20;
				y+=10;
				for (i = 0; lines[i].width != -1; i++)
				{

					screen->DrawText (CR_UNTRANSLATED, x, y, lines[i].string,
						DTA_KeepRatio, true,
						DTA_VirtualWidth, hudwidth, DTA_VirtualHeight, hudheight, TAG_DONE);
					y += SmallFont->GetHeight ()+1;
				}

				V_FreeBrokenLines (lines);
			}
		}
		if (idmypos) DrawCoordinates(CPlayer);
	}
	else
	{
		char printstr[256];
		int seconds;
		cluster_info_t *thiscluster = FindClusterInfo (level.cluster);
		bool hub = !!(thiscluster->flags&CLUSTER_HUB);
		int length=8*SmallFont->GetCharWidth('0');
		int fonth=SmallFont->GetHeight()+1;
		int bottom=hudheight-1;

		screen->SetFont(SmallFont);

		seconds = totalgametime / TICRATE;
		sprintf(printstr, "%02i:%02i:%02i", seconds/3600, (seconds%3600)/60, seconds%60);
		DrawHudText(hudcolor_ttim, printstr, hudwidth-length, bottom, FRACUNIT);

		seconds= level.time /TICRATE;
		sprintf(printstr, "%02i:%02i:%02i", seconds/3600, (seconds%3600)/60, seconds%60);
		DrawHudText(hudcolor_time, printstr, hudwidth-length, bottom-fonth, FRACUNIT);

		// Single level time for hubs
		if (level.clusterflags&CLUSTER_HUB)
		{
			seconds= level.maptime /TICRATE;
			sprintf(printstr, "%02i:%02i:%02i", seconds/3600, (seconds%3600)/60, seconds%60);
			DrawHudText(hudcolor_ltim, printstr, hudwidth-length, bottom-fonth*2, FRACUNIT);
		}

		sprintf(printstr,"%s: %s",level.mapname,level.level_name);
		screen->DrawText(hudcolor_titl, 1, hudheight-fonth-1, printstr,
			DTA_KeepRatio, true,
			DTA_VirtualWidth, hudwidth, DTA_VirtualHeight, hudheight, TAG_DONE);

		DrawCoordinates(CPlayer);
	}
}

/////////////////////////////////////////////////////////////////////////
//
// Initialize the fonts and other data
//
/////////////////////////////////////////////////////////////////////////

static void SetIcon (const char * item, const char * sc_String)
{
	const TypeInfo * ti = TypeInfo::FindType(item);
	if (ti)
	{
		AInventory * defaults = (AInventory*)GetDefaultByType(ti);
		if (defaults)
		{
			defaults->Icon = TexMan.AddPatch (sc_String);
			if (defaults->Icon <= 0) defaults->Icon = TexMan.AddPatch (sc_String, ns_sprites);
		}
	}
}


AT_GAME_SET(Hud)
//static void InitHud()
{
	switch (gameinfo.gametype)
	{
	case GAME_Heretic:
	case GAME_Hexen:
		healthpic=TexMan[TexMan.AddPatch("ARTIPTN2", ns_sprites)];
		HudFont=FFont::FindFont("HUDFONT_RAVEN");
		break;

	case GAME_Strife:
		healthpic=TexMan[TexMan.AddPatch("I_MDKT")];
		HudFont=BigFont;	// Strife doesn't have anything nice so use the standard font
		break;

	default:
		healthpic=TexMan[TexMan.AddPatch("MEDIA0", ns_sprites)];
		HudFont=FFont::FindFont("HUDFONT_DOOM");
		break;
	}

	IndexFont=FFont::FindFont("INDXFONT");
	if (IndexFont == NULL)
	{
		int num = Wads.CheckNumForName ("INDXFONT");
		if (num != -1)
		{
			char head[3];
			{
				FWadLump lump = Wads.OpenLumpNum (num);
				lump.Read (head, 3);
			}
			if (head[0] == 'F' && head[1] == 'O' && head[2] == 'N')
			{
				IndexFont = new FSingleLumpFont ("INDXFONT", num);
			}
		}
	}
	if (IndexFont==NULL) IndexFont=ConFont;	// Emergency fallback

	invgems[0] = TexMan[TexMan.AddPatch("INVGEML1")];
	invgems[1] = TexMan[TexMan.AddPatch("INVGEML2")];
	invgems[2] = TexMan[TexMan.AddPatch("INVGEMR1")];
	invgems[3] = TexMan[TexMan.AddPatch("INVGEMR2")];

	fragpic = TexMan[TexMan.AddPatch("HU_FRAGS")];	// Sadly, I don't have anything usable for this. :(

	KeyTypes.Clear();
	UnassignedKeyTypes.Clear();

	// Now read custom icon overrides
	int lump, lastlump = 0;

	while ((lump = Wads.FindLump ("ALTHUDCF", &lastlump)) != -1)
	{
		SC_OpenLumpNum(lump, "ALTHUDCF");
		while (SC_GetString())
		{
			if (SC_Compare("Health"))
			{
				SC_MustGetString();
				int tex = TexMan.AddPatch(sc_String);
				if (tex<=0) tex = TexMan.AddPatch(sc_String, ns_sprites);
				if (tex>0) healthpic = TexMan[tex];
			}
			else
			{
				const TypeInfo * ti = TypeInfo::FindType(sc_String);
				if (!ti)
				{
					Printf("Unknown item class '%s' in ALTHUDCF\n", sc_String);
				}
				else if (!ti->IsDescendantOf(RUNTIME_CLASS(AInventory)))
				{
					Printf("Invalid item class '%s' in ALTHUDCF\n", sc_String);
					ti=NULL;
				}
				SC_MustGetString();
				int tex=0;

				if (!SC_Compare("0") && !SC_Compare("NULL") && !SC_Compare(""))
				{
					tex = TexMan.AddPatch(sc_String);
					if (tex<=0) tex = TexMan.AddPatch(sc_String, ns_sprites);
				}
				else tex=-1;
				if (ti) ((AInventory*)GetDefaultByType(ti))->AltIcon = tex;
			}
		}
	}

	SetIcon("ArmorBonus", "BON2A0");	// Just a personal preference. ;)
}

