// Emacs style mode select   -*- C++ -*- 
//-----------------------------------------------------------------------------
//
// $Id: am_map.c,v 1.2 2000/07/29 22:33:02 fraggle Exp $
//
// Copyright (C) 1993-1996 by id Software, Inc.
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
// 
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
// 
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
//
//-----------------------------------------------------------------------------
//
// DESCRIPTION:  
//   the automap code
//
//-----------------------------------------------------------------------------

static const char rcsid[] =
  "$Id: am_map.c,v 1.2 2000/07/29 22:33:02 fraggle Exp $";

#include "c_io.h"
#include "c_runcmd.h"
#include "doomstat.h"
#include "d_main.h"
#include "st_stuff.h"
#include "r_main.h"
#include "p_setup.h"
#include "p_maputl.h"
#include "r_draw.h"
#include "w_wad.h"
#include "v_video.h"
#include "p_spec.h"
#include "am_map.h"
#include "dstrings.h"
#include "d_deh.h"    // Ty 03/27/98 - externalizations

//jff 1/7/98 default automap colors added
int mapcolor_back = 247;    // map background
int mapcolor_grid = 104;    // grid lines color
int mapcolor_wall = 181;    // normal 1s wall color
int mapcolor_fchg = 166;    // line at floor height change color
int mapcolor_cchg = 231;    // line at ceiling height change color
int mapcolor_clsd = 231;    // line at sector with floor=ceiling color
int mapcolor_rkey = 175;    // red key color
int mapcolor_bkey = 204;    // blue key color
int mapcolor_ykey = 231;    // yellow key color
int mapcolor_rdor = 175;    // red door color  (diff from keys to allow option)
int mapcolor_bdor = 204;    // blue door color (of enabling one but not other )
int mapcolor_ydor = 231;    // yellow door color
int mapcolor_tele = 119;    // teleporter line color
int mapcolor_secr = 176;    // secret sector boundary color
int mapcolor_exit = 0;    // jff 4/23/98 add exit line color
int mapcolor_unsn = 96;    // computer map unseen line color
int mapcolor_flat = 88;    // line with no floor/ceiling changes
int mapcolor_sprt = 112;    // general sprite color
int mapcolor_hair = 208;    // crosshair color
int mapcolor_sngl = 208;    // single player arrow color
int mapcolor_frnd = 252;    // colors for friends of player

//jff 3/9/98 add option to not show secret sectors until entered
int map_secret_after;
//jff 4/3/98 add symbols for "no-color" for disable and "black color" for black
#define NC 0
#define BC 247

// drawing stuff
#define FB    0

// automap key binding
int key_map_right = KEYD_RIGHTARROW;
int key_map_left = KEYD_LEFTARROW;
int key_map_up = KEYD_UPARROW;
int key_map_down = KEYD_DOWNARROW;
int key_map_zoomin = '=';
int key_map_zoomout = '-';
int key_map;
int key_map_gobig = '0';
int key_map_follow = 'f';
int key_map_mark = 'm';
int key_map_clear = 'c';
int key_map_grid = 'g';

// scale on entry
#define INITSCALEMTOF (.2*FRACUNIT)
// how much the automap moves window per tic in frame-buffer coordinates
// moves 140 pixels in 1 second
#define F_PANINC  4
// how much zoom-in per tic
// goes to 2x in 1 second
#define M_ZOOMIN        ((int) (1.02*FRACUNIT))
// how much zoom-out per tic
// pulls out to 0.5x in 1 second
#define M_ZOOMOUT       ((int) (FRACUNIT/1.02))

// translates between frame-buffer and map distances
#define FTOM(x) FixedMul(((x)<<16),scale_ftom)
#define MTOF(x) (FixedMul((x),scale_mtof)>>16)
// translates between frame-buffer and map coordinates
#define CXMTOF(x)  (f_x + MTOF((x)-m_x))
#define CYMTOF(y)  (f_y + (f_h - MTOF((y)-m_y)))

typedef struct
{
  int x, y;
} fpoint_t;

typedef struct
{
  fpoint_t a, b;
} fline_t;

typedef struct
{
  mpoint_t a, b;
} mline_t;

typedef struct
{
  fixed_t slp, islp;
} islope_t;

//
// The vector graphics for the automap.
//  A line drawing of the player pointing right,
//   starting from the middle.
//
#define R ((8*PLAYERRADIUS)/7)
mline_t player_arrow[] =
{
  { { -R+R/8, 0 }, { R, 0 } }, // -----
  { { R, 0 }, { R-R/2, R/4 } },  // ----->
  { { R, 0 }, { R-R/2, -R/4 } },
  { { -R+R/8, 0 }, { -R-R/8, R/4 } }, // >---->
  { { -R+R/8, 0 }, { -R-R/8, -R/4 } },
  { { -R+3*R/8, 0 }, { -R+R/8, R/4 } }, // >>--->
  { { -R+3*R/8, 0 }, { -R+R/8, -R/4 } }
};
#undef R
#define NUMPLYRLINES (sizeof(player_arrow)/sizeof(mline_t))

#define R ((8*PLAYERRADIUS)/7)
mline_t cheat_player_arrow[] =
{ // killough 3/22/98: He's alive, Jim :)
  { { -R+R/8, 0 }, { R, 0 } }, // -----
  { { R, 0 }, { R-R/2, R/4 } },  // ----->
  { { R, 0 }, { R-R/2, -R/4 } },
  { { -R+R/8, 0 }, { -R-R/8, R/4 } }, // >---->
  { { -R+R/8, 0 }, { -R-R/8, -R/4 } },
  { { -R+3*R/8, 0 }, { -R+R/8, R/4 } }, // >>--->
  { { -R+3*R/8, 0 }, { -R+R/8, -R/4 } },
  { { -R/10-R/6, R/4}, {-R/10-R/6, -R/4} },  // J
  { { -R/10-R/6, -R/4}, {-R/10-R/6-R/8, -R/4} },
  { { -R/10-R/6-R/8, -R/4}, {-R/10-R/6-R/8, -R/8} },
  { { -R/10, R/4}, {-R/10, -R/4}},           // F
  { { -R/10, R/4}, {-R/10+R/8, R/4}},
  { { -R/10+R/4, R/4}, {-R/10+R/4, -R/4}},   // F
  { { -R/10+R/4, R/4}, {-R/10+R/4+R/8, R/4}},
};
#undef R
#define NUMCHEATPLYRLINES (sizeof(cheat_player_arrow)/sizeof(mline_t))

#define R (FRACUNIT)
mline_t triangle_guy[] =
{
  { { -.867*R, -.5*R }, { .867*R, -.5*R } },
  { { .867*R, -.5*R } , { 0, R } },
  { { 0, R }, { -.867*R, -.5*R } }
};
#undef R
#define NUMTRIANGLEGUYLINES (sizeof(triangle_guy)/sizeof(mline_t))

//jff 1/5/98 new symbol for keys on automap
#define R (FRACUNIT)
mline_t cross_mark[] =
{
  { { -R, 0 }, { R, 0} },
  { { 0, -R }, { 0, R } },
};
#undef R
#define NUMCROSSMARKLINES (sizeof(cross_mark)/sizeof(mline_t))
//jff 1/5/98 end of new symbol

#define R (FRACUNIT)
mline_t thintriangle_guy[] =
{
  { { -.5*R, -.7*R }, { R, 0 } },
  { { R, 0 }, { -.5*R, .7*R } },
  { { -.5*R, .7*R }, { -.5*R, -.7*R } }
};
#undef R
#define NUMTHINTRIANGLEGUYLINES (sizeof(thintriangle_guy)/sizeof(mline_t))

int ddt_cheating = 0;         // killough 2/7/98: make global, rename to ddt_*

int automap_grid = 0;

boolean automapactive = false;

// location of window on screen
static int  f_x;
static int  f_y;

// size of window on screen
static int  f_w;
static int  f_h;

static int  lightlev;        // used for funky strobing effect
static byte*  fb;            // pseudo-frame buffer
static int  amclock;

static mpoint_t m_paninc;    // how far the window pans each tic (map coords)
static fixed_t mtof_zoommul; // how far the window zooms each tic (map coords)
static fixed_t ftom_zoommul; // how far the window zooms each tic (fb coords)

static fixed_t m_focalx, m_focaly;

static fixed_t m_x, m_y;     // LL x,y window location on the map (map coords)
static fixed_t m_x2, m_y2;   // UR x,y window location on the map (map coords)

//
// width/height of window on map (map coords)
//
static fixed_t  m_w;
static fixed_t  m_h;

// based on level size
static fixed_t  min_x;
static fixed_t  min_y; 
static fixed_t  max_x;
static fixed_t  max_y;

static fixed_t  max_w;          // max_x-min_x,
static fixed_t  max_h;          // max_y-min_y

// based on player size
static fixed_t  min_w;
static fixed_t  min_h;


static fixed_t  min_scale_mtof; // used to tell when to stop zooming out
static fixed_t  max_scale_mtof; // used to tell when to stop zooming in

// old stuff for recovery later
static fixed_t old_m_w, old_m_h;
static fixed_t old_m_x, old_m_y;

// old location used by the Follower routine
static mpoint_t f_oldloc;

// used by MTOF to scale from map-to-frame-buffer coords
static fixed_t scale_mtof = INITSCALEMTOF;
// used by FTOM to scale from frame-buffer-to-map coords (=1/scale_mtof)
static fixed_t scale_ftom;

static player_t *plr;           // the player represented by an arrow

static patch_t *marknums[10];   // numbers used for marking by the automap

// killough 2/22/98: Remove limit on automap marks,
// and make variables external for use in savegames.

mpoint_t *markpoints = NULL;    // where the points are
int markpointnum = 0; // next point to be assigned (also number of points now)
int markpointnum_max = 0;       // killough 2/22/98
int followplayer = 1; // specifies whether to follow the player around

static boolean stopped = true;

//
// AM_rotate()
//
// Rotation in 2D.
// Used to rotate player arrow line character.
//
// Passed the coordinates of a point, and an angle
// Returns the coordinates rotated by the angle
//
void AM_rotate
( fixed_t*  x,
  fixed_t*  y,
  angle_t a )
{
  fixed_t tmpx;

  tmpx =
    FixedMul(*x,finecosine[a>>ANGLETOFINESHIFT])
    - FixedMul(*y,finesine[a>>ANGLETOFINESHIFT]);
  
  *y   =
    FixedMul(*x,finesine[a>>ANGLETOFINESHIFT])
    + FixedMul(*y,finecosine[a>>ANGLETOFINESHIFT]);
  
  *x = tmpx;
}

void AM_rotatepoint(fixed_t *x, fixed_t *y, angle_t a)
{
  *x -= m_focalx;
  *y -= m_focaly;
  AM_rotate(x, y, a);
  *x += m_focalx;
  *y += m_focaly;
}

//
// AM_getIslope()
//
// Calculates the slope and slope according to the x-axis of a line
// segment in map coordinates (with the upright y-axis n' all) so
// that it can be used with the brain-dead drawing stuff.
//
// Passed the line slope is desired for and an islope_t structure for return
// Returns nothing
//
void AM_getIslope
( mline_t*  ml,
  islope_t* is )
{
  int dx, dy;

  dy = ml->a.y - ml->b.y;
  dx = ml->b.x - ml->a.x;
  if (!dy)
    is->islp = (dx<0?-MAXINT:MAXINT);
  else
    is->islp = FixedDiv(dx, dy);
  if (!dx)
    is->slp = (dy<0?-MAXINT:MAXINT);
  else
    is->slp = FixedDiv(dy, dx);
}

//
// AM_activateNewScale()
//
// Changes the map scale after zooming or translating
//
// Passed nothing, returns nothing
//
void AM_activateNewScale(void)
{
  m_x += m_w/2;
  m_y += m_h/2;
  m_w = FTOM(f_w);
  m_h = FTOM(f_h);
  m_x -= m_w/2;
  m_y -= m_h/2;
  m_x2 = m_x + m_w;
  m_y2 = m_y + m_h;
}

//
// AM_saveScaleAndLoc()
//
// Saves the current center and zoom
// Affects the variables that remember old scale and loc
//
// Passed nothing, returns nothing
//
void AM_saveScaleAndLoc(void)
{
  old_m_x = m_focalx;
  old_m_y = m_focaly;
  old_m_w = m_w;
  old_m_h = m_h;
}

//
// AM_restoreScaleAndLoc()
//
// restores the center and zoom from locally saved values
// Affects global variables for location and scale
//
// Passed nothing, returns nothing
//
void AM_restoreScaleAndLoc(void)
{
  m_w = old_m_w;
  m_h = old_m_h;

  if (followplayer)
    {
      m_focalx = plr->mo->x;
      m_focaly = plr->mo->y;
    }
  else
    {
      m_focalx = old_m_x;
      m_focaly = old_m_y;
    }

  m_x = m_focalx - m_w/2;
  m_y = m_focaly - m_h/2;
  
  m_x2 = m_focalx + m_w/2;
  m_y2 = m_focaly + m_h/2;

  // Change the scaling multipliers
  scale_mtof = FixedDiv(f_w<<FRACBITS, m_w);
  scale_ftom = FixedDiv(FRACUNIT, scale_mtof);
}

//
// AM_addMark()
//
// Adds a marker at the current location
// Affects global variables for marked points
//
// Passed nothing, returns nothing
//
void AM_addMark(void)
{
  // killough 2/22/98:
  // remove limit on automap marks

  if (markpointnum >= markpointnum_max)
    markpoints = realloc(markpoints,
			 (markpointnum_max = markpointnum_max ?
			  markpointnum_max*2 : 16) * sizeof(*markpoints));

  markpoints[markpointnum].x = m_x + m_w/2;
  markpoints[markpointnum].y = m_y + m_h/2;
  markpointnum++;
}

//
// AM_findMinMaxBoundaries()
//
// Determines bounding box of all vertices,
// sets global variables controlling zoom range.
//
// Passed nothing, returns nothing
//
void AM_findMinMaxBoundaries(void)
{
  int i;
  fixed_t a;
  fixed_t b;

  min_x = min_y =  MAXINT;
  max_x = max_y = -MAXINT;

  for (i=0;i<numvertexes;i++)
    {
      if (vertexes[i].x < min_x)
	min_x = vertexes[i].x;
      else if (vertexes[i].x > max_x)
	max_x = vertexes[i].x;
      
      if (vertexes[i].y < min_y)
	min_y = vertexes[i].y;
      else if (vertexes[i].y > max_y)
	max_y = vertexes[i].y;
    }
  
  max_w = max_x - min_x;
  max_h = max_y - min_y;

  min_w = 2*PLAYERRADIUS; // const? never changed?
  min_h = 2*PLAYERRADIUS;

  a = FixedDiv(f_w<<FRACBITS, max_w);
  b = FixedDiv(f_h<<FRACBITS, max_h);

  min_scale_mtof = a < b ? a : b;
  max_scale_mtof = FixedDiv(f_h<<FRACBITS, 2*PLAYERRADIUS);
}

//
// AM_changeWindowLoc()
//
// Moves the map window by the global variables m_paninc.x, m_paninc.y
//
// Passed nothing, returns nothing
//
void AM_changeWindowLoc(void)
{
  if (m_paninc.x || m_paninc.y)
    {
      followplayer = 0;
      f_oldloc.x = MAXINT;
    }
  
  m_x += m_paninc.x;
  m_y += m_paninc.y;
  
  if (m_x + m_w/2 > max_x)
    m_x = max_x - m_w/2;
  else if (m_x + m_w/2 < min_x)
    m_x = min_x - m_w/2;

  if (m_y + m_h/2 > max_y)
    m_y = max_y - m_h/2;
  else if (m_y + m_h/2 < min_y)
    m_y = min_y - m_h/2;

  m_x2 = m_x + m_w;
  m_y2 = m_y + m_h;
}


//
// AM_initVariables()
//
// Initialize the variables for the automap
//
// Affects the automap global variables
// Status bar is notified that the automap has been entered
// Passed nothing, returns nothing
//
void AM_initVariables(void)
{
  int pnum;
  static event_t st_notify = { ev_keyup, AM_MSGENTERED };
  
  automapactive = true;
  fb = screens[0];

  f_oldloc.x = MAXINT;
  amclock = 0;
  lightlev = 0;

  m_paninc.x = m_paninc.y = 0;
  ftom_zoommul = FRACUNIT;
  mtof_zoommul = FRACUNIT;

  m_w = FTOM(f_w);
  m_h = FTOM(f_h);

  // find player to center on initially
  if (!playeringame[pnum = consoleplayer])
    for (pnum=0;pnum<MAXPLAYERS;pnum++)
      if (playeringame[pnum])
	break;

  plr = &players[pnum];
  m_x = plr->mo->x - m_w/2;
  m_y = plr->mo->y - m_h/2;
  AM_changeWindowLoc();

  // for saving & restoring
  old_m_x = m_x;
  old_m_y = m_y;
  old_m_w = m_w;
  old_m_h = m_h;

  // inform the status bar of the change
  ST_Responder(&st_notify);
}

//
// AM_loadPics()
// 
// Load the patches for the mark numbers
//
// Sets the marknums[i] variables to the patches for each digit
// Passed nothing, returns nothing;
//
void AM_loadPics(void)
{
  int i;
  char namebuf[9];
  
  for (i=0;i<10;i++)
    {
      sprintf(namebuf, "AMMNUM%d", i);
      marknums[i] = W_CacheLumpName(namebuf, PU_STATIC);
    }
}

//
// AM_unloadPics()
//
// Makes the mark patches purgable
//
// Passed nothing, returns nothing
//
void AM_unloadPics(void)
{
  int i;

  for (i=0;i<10;i++)
    Z_ChangeTag(marknums[i], PU_CACHE);
}

//
// AM_clearMarks()
//
// Sets the number of marks to 0, thereby clearing them from the display
//
// Affects the global variable markpointnum
// Passed nothing, returns nothing
//
void AM_clearMarks(void)
{
  markpointnum = 0;
}

//
// AM_LevelInit()
//
// Initialize the automap at the start of a new level
// should be called at the start of every level
//
// Passed nothing, returns nothing
// Affects automap's global variables
//
void AM_LevelInit(void)
{
  f_x = f_y = 0;

  // killough 2/7/98: get rid of finit_ vars
  // to allow runtime setting of width/height
  //
  // killough 11/98: ... finally add hires support :)

  f_w = (SCREENWIDTH) << hires;
  f_h = (SCREENHEIGHT-ST_HEIGHT) << hires;

  AM_findMinMaxBoundaries();
  scale_mtof = FixedDiv(min_scale_mtof, (int) (0.7*FRACUNIT));
  if (scale_mtof > max_scale_mtof)
    scale_mtof = min_scale_mtof;
  scale_ftom = FixedDiv(FRACUNIT, scale_mtof);
}

//
// AM_Stop()
//
// Cease automap operations, unload patches, notify status bar
//
// Passed nothing, returns nothing
//
void AM_Stop (void)
{
  static event_t st_notify = { 0, ev_keyup, AM_MSGEXITED };

  AM_unloadPics();
  automapactive = false;
  ST_Responder(&st_notify);
  stopped = true;
  redrawsbar = redrawborder = true;  // sf: need redraw
}

//
// AM_Start()
// 
// Start up automap operations, 
//  if a new level, or game start, (re)initialize level variables
//  init map variables
//  load mark patches
//
// Passed nothing, returns nothing
//
void AM_Start()
{
  static int lastlevel = -1, lastepisode = -1, last_hires = -1;

  if (!stopped)
    AM_Stop();
  redrawsbar = redrawborder = true;  // sf: redraw needed
  stopped = false;
  if (lastlevel != gamemap || lastepisode != gameepisode || hires!=last_hires)
    {
      last_hires = hires;          // killough 11/98
      AM_LevelInit();
      lastlevel = gamemap;
      lastepisode = gameepisode;
    }
  AM_initVariables();
  AM_loadPics();
}

//
// AM_minOutWindowScale()
//
// Set the window scale to the maximum size
//
// Passed nothing, returns nothing
//
void AM_minOutWindowScale()
{
  scale_mtof = min_scale_mtof;
  scale_ftom = FixedDiv(FRACUNIT, scale_mtof);
  AM_activateNewScale();
}

//
// AM_maxOutWindowScale(void)
//
// Set the window scale to the minimum size
//
// Passed nothing, returns nothing
//
void AM_maxOutWindowScale(void)
{
  scale_mtof = max_scale_mtof;
  scale_ftom = FixedDiv(FRACUNIT, scale_mtof);
  AM_activateNewScale();
}

//
// AM_Responder()
//
// Handle events (user inputs) in automap mode
//
// Passed an input event, returns true if its handled
//
boolean AM_Responder(event_t* ev)
{
  int rc;
  static int cheatstate=0;
  static int bigstate=0;
  int ch;                                                       // phares

  rc = false;

  if (!automapactive)
    {
    }
  else if (ev->type == ev_keydown)
    {
      rc = true;
      ch = ev->data1;                                             // phares
      if (ch == key_map_right)                                    //    |
	if (!followplayer)                                        //    V
	  m_paninc.x = FTOM(F_PANINC);
	else
	  rc = false;
      else if (ch == key_map_left)
	if (!followplayer)
          m_paninc.x = -FTOM(F_PANINC);
	else
          rc = false;
      else if (ch == key_map_up)
	if (!followplayer)
          m_paninc.y = FTOM(F_PANINC);
	else
          rc = false;
      else if (ch == key_map_down)
	if (!followplayer)
          m_paninc.y = -FTOM(F_PANINC);
	else
          rc = false;
      else if (ch == key_map_zoomout)
	{
	  mtof_zoommul = M_ZOOMOUT;
	  ftom_zoommul = M_ZOOMIN;
	}
      else if (ch == key_map_zoomin)
	{
	  mtof_zoommul = M_ZOOMIN;
	  ftom_zoommul = M_ZOOMOUT;
	}
      else if (ch == key_map_gobig)
	{
	  bigstate = !bigstate;
	  if (bigstate)
	    {
	      AM_saveScaleAndLoc();
	      AM_minOutWindowScale();
	    }
	  else
	    AM_restoreScaleAndLoc();
	}
      else if (ch == key_map_follow)
	{
	  followplayer = !followplayer;
	  f_oldloc.x = MAXINT;
	  // Ty 03/27/98 - externalized
	  doom_printf(followplayer ? s_AMSTR_FOLLOWON : s_AMSTR_FOLLOWOFF);
	}
      else if (ch == key_map_grid)
	{
	  automap_grid = !automap_grid;      // killough 2/28/98
	  // Ty 03/27/98 - *not* externalized
	  doom_printf(automap_grid ? s_AMSTR_GRIDON : s_AMSTR_GRIDOFF);
	}
      else if (ch == key_map_mark)
	{
	  // Ty 03/27/98 - *not* externalized     
	  // sf: fixed this (buffer at start, presumably from an old sprintf
	  doom_printf("%s %d", s_AMSTR_MARKEDSPOT, markpointnum);
	  AM_addMark();
	}
      else if (ch == key_map_clear)
	{
	  AM_clearMarks();  // Ty 03/27/98 - *not* externalized
	  doom_printf(s_AMSTR_MARKSCLEARED);                          //    ^
	}                                                             //    |
      else                                                            // phares
	{
	  cheatstate=0;
	  rc = false;
	}
    }
  else if (ev->type == ev_keyup)
    {
      rc = false;
      ch = ev->data1;
      if (ch == key_map_right)
	{
	  if (!followplayer)
	    m_paninc.x = 0;
	}
      else if (ch == key_map_left)
	{
	  if (!followplayer)
	    m_paninc.x = 0;
	}
      else if (ch == key_map_up)
	{
	  if (!followplayer)
	    m_paninc.y = 0;
	}
      else if (ch == key_map_down)
	{
	  if (!followplayer)
	    m_paninc.y = 0;
	}
      else if ((ch == key_map_zoomout) || (ch == key_map_zoomin))
	{
	  mtof_zoommul = FRACUNIT;
	  ftom_zoommul = FRACUNIT;
	}
    }
  return rc;
}

//
// AM_changeWindowScale()
//
// Automap zooming
//
// Passed nothing, returns nothing
//
void AM_changeWindowScale(void)
{
  // Change the scaling multipliers
  scale_mtof = FixedMul(scale_mtof, mtof_zoommul);
  scale_ftom = FixedDiv(FRACUNIT, scale_mtof);

  if (scale_mtof < min_scale_mtof)
    AM_minOutWindowScale();
  else if (scale_mtof > max_scale_mtof)
    AM_maxOutWindowScale();
  else
    AM_activateNewScale();
}

//
// AM_doFollowPlayer()
//
// Turn on follow mode - the map scrolls opposite to player motion
//
// Passed nothing, returns nothing
//
void AM_doFollowPlayer(void)
{
  if (f_oldloc.x != plr->mo->x || f_oldloc.y != plr->mo->y)
    {
      m_focalx = plr->mo->x;
      m_focaly = plr->mo->y;
      m_x = m_focalx - m_w/2;
      m_y = m_focaly - m_h/2;
      m_x2 = m_focalx + m_w/2;
      m_y2 = m_focaly + m_h/2;
      //      m_x = FTOM(MTOF(plr->mo->x)) - m_w/2;
      //      m_y = FTOM(MTOF(plr->mo->y)) - m_h/2;
      //      m_x2 = m_x + m_w;
      //      m_y2 = m_y + m_h;
      f_oldloc.x = plr->mo->x;
      f_oldloc.y = plr->mo->y;
    }
}

//
// killough 10/98: return coordinates, to allow use of a non-follow-mode
// pointer. Allows map inspection without moving player to the location.
//

int map_point_coordinates;

void AM_Coordinates(const mobj_t *mo, fixed_t *x, fixed_t *y, fixed_t *z)
{
  *z = followplayer || !map_point_coordinates ? *x = mo->x, *y = mo->y, mo->z :
    R_PointInSubsector(*x = m_x+m_w/2, *y = m_y+m_h/2)->sector->floorheight;
}

//
// AM_Ticker()
//
// Updates on gametic - enter follow mode, zoom, or change map location
//
// Passed nothing, returns nothing
//
void AM_Ticker (void)
{
  if (!automapactive)
    return;

  amclock++;

  if (followplayer)
    AM_doFollowPlayer();

  // Change the zoom if necessary
  if (ftom_zoommul != FRACUNIT)
    AM_changeWindowScale();

  // Change x,y location
  if (m_paninc.x || m_paninc.y)
    AM_changeWindowLoc();
}


//
// Clear automap frame buffer.
//
void AM_clearFB(int color)
{
  memset(fb, color, f_w*f_h);
}

//
// AM_clipMline()
//
// Automap clipping of lines.
//
// Based on Cohen-Sutherland clipping algorithm but with a slightly
// faster reject and precalculated slopes. If the speed is needed,
// use a hash algorithm to handle the common cases.
//
// Passed the line's coordinates on map and in the frame buffer performs
// clipping on them in the lines frame coordinates.
// Returns true if any part of line was not clipped
//
boolean AM_clipMline
( mline_t*  ml,
  fline_t*  fl )
{
  enum
    {
      LEFT    =1,
      RIGHT   =2,
      BOTTOM  =4,
      TOP     =8
    };

  register int outcode1 = 0;
  register int outcode2 = 0;
  register int outside;

  fpoint_t  tmp;
  int   dx;
  int   dy;

    
#define DOOUTCODE(oc, mx, my) \
  (oc) = 0; \
  if ((my) < 0) (oc) |= TOP; \
  else if ((my) >= f_h) (oc) |= BOTTOM; \
  if ((mx) < 0) (oc) |= LEFT; \
  else if ((mx) >= f_w) (oc) |= RIGHT;

    
  // do trivial rejects and outcodes
  if (ml->a.y > m_y2)
    outcode1 = TOP;
  else if (ml->a.y < m_y)
    outcode1 = BOTTOM;
  
  if (ml->b.y > m_y2)
    outcode2 = TOP;
  else if (ml->b.y < m_y)
    outcode2 = BOTTOM;
  
  if (outcode1 & outcode2)
    return false; // trivially outside
  
  if (ml->a.x < m_x)
    outcode1 |= LEFT;
  else if (ml->a.x > m_x2)
    outcode1 |= RIGHT;
  
  if (ml->b.x < m_x)
    outcode2 |= LEFT;
  else if (ml->b.x > m_x2)
    outcode2 |= RIGHT;
  
  if (outcode1 & outcode2)
    return false; // trivially outside

  // transform to frame-buffer coordinates.
  fl->a.x = CXMTOF(ml->a.x);
  fl->a.y = CYMTOF(ml->a.y);
  fl->b.x = CXMTOF(ml->b.x);
  fl->b.y = CYMTOF(ml->b.y);

  DOOUTCODE(outcode1, fl->a.x, fl->a.y);
  DOOUTCODE(outcode2, fl->b.x, fl->b.y);

  if (outcode1 & outcode2)
    return false;

  while (outcode1 | outcode2)
    {
      // may be partially inside box
      // find an outside point
      if (outcode1)
	outside = outcode1;
      else
	outside = outcode2;
      
      // clip to each side
      if (outside & TOP)
	{
	  dy = fl->a.y - fl->b.y;
	  dx = fl->b.x - fl->a.x;
	  tmp.x = fl->a.x + (dx*(fl->a.y))/dy;
	  tmp.y = 0;
	}
      else if (outside & BOTTOM)
	{
	  dy = fl->a.y - fl->b.y;
	  dx = fl->b.x - fl->a.x;
	  tmp.x = fl->a.x + (dx*(fl->a.y-f_h))/dy;
	  tmp.y = f_h-1;
	}
      else if (outside & RIGHT)
	{
	  dy = fl->b.y - fl->a.y;
	  dx = fl->b.x - fl->a.x;
	  tmp.y = fl->a.y + (dy*(f_w-1 - fl->a.x))/dx;
	  tmp.x = f_w-1;
	}
      else if (outside & LEFT)
	{
	  dy = fl->b.y - fl->a.y;
	  dx = fl->b.x - fl->a.x;
	  tmp.y = fl->a.y + (dy*(-fl->a.x))/dx;
	  tmp.x = 0;
	}
      
      if (outside == outcode1)
	{
	  fl->a = tmp;
	  DOOUTCODE(outcode1, fl->a.x, fl->a.y);
	}
      else
	{
	  fl->b = tmp;
	  DOOUTCODE(outcode2, fl->b.x, fl->b.y);
	}
      
      if (outcode1 & outcode2)
	return false; // trivially outside
    }
  
  return true;
}
#undef DOOUTCODE

//
// AM_drawFline()
//
// Draw a line in the frame buffer.
// Classic Bresenham w/ whatever optimizations needed for speed
//
// Passed the frame coordinates of line, and the color to be drawn
// Returns nothing
//
void AM_drawFline
( fline_t*  fl,
  int   color )
{
  register int x;
  register int y;
  register int dx;
  register int dy;
  register int sx;
  register int sy;
  register int ax;
  register int ay;
  register int d;

#ifdef RANGECHECK         // killough 2/22/98    
  static int fuck = 0;

  // For debugging only
  if
  (
   fl->a.x < 0 || fl->a.x >= f_w
   || fl->a.y < 0 || fl->a.y >= f_h
   || fl->b.x < 0 || fl->b.x >= f_w
   || fl->b.y < 0 || fl->b.y >= f_h
   )
    {
      fprintf(stderr, "fuck %d \r", fuck++);
      return;
    }
#endif

#define PUTDOT(xx,yy,cc) fb[(yy)*f_w+(xx)]=(cc)

  dx = fl->b.x - fl->a.x;
  ax = 2 * (dx<0 ? -dx : dx);
  sx = dx<0 ? -1 : 1;

  dy = fl->b.y - fl->a.y;
  ay = 2 * (dy<0 ? -dy : dy);
  sy = dy<0 ? -1 : 1;

  x = fl->a.x;
  y = fl->a.y;

  if (ax > ay)
    {
      d = ay - ax/2;
      while (1)
	{
	  PUTDOT(x,y,color);
	  if (x == fl->b.x) return;
	  if (d>=0)
	    {
	      y += sy;
	      d -= ax;
	    }
	  x += sx;
	  d += ay;
	}
    }
  else
    {
      d = ax - ay/2;
      while (1)
	{
	  PUTDOT(x, y, color);
	  if (y == fl->b.y) return;
	  if (d >= 0)
	    {
	      x += sx;
	      d -= ay;
	    }
	  y += sy;
	  d += ax;
	}
    }
}

//
// AM_drawMline()
//
// Clip lines, draw visible parts of lines.
//
// Passed the map coordinates of the line, and the color to draw it
// Color -1 is special and prevents drawing. Color 247 is special and
// is translated to black, allowing Color 0 to represent feature disable
// in the defaults file.
// Returns nothing.
//
void AM_drawMline
( mline_t*  ml,
  int   color )
{
  static fline_t fl;

  if (color==-1)  // jff 4/3/98 allow not drawing any sort of line
    return;       // by setting its color to -1
  if (color==247) // jff 4/3/98 if color is 247 (xparent), use black
    color=0;

  if (AM_clipMline(ml, &fl))
    AM_drawFline(&fl, color); // draws it on frame buffer using fb coords
}

//
// AM_drawGrid()
//
// Draws blockmap aligned grid lines.
//
// Passed the color to draw the grid lines
// Returns nothing
//
void AM_drawGrid(int color)
{
  fixed_t x, y;
  fixed_t start, end;
  mline_t ml;

  // Figure out start of vertical gridlines
  start = m_x;
  if ((start-bmaporgx)%(MAPBLOCKUNITS<<FRACBITS))
    start += (MAPBLOCKUNITS<<FRACBITS)
      - ((start-bmaporgx)%(MAPBLOCKUNITS<<FRACBITS));
  end = m_x + m_w;
  
  // draw vertical gridlines
  ml.a.y = m_y;
  ml.b.y = m_y+m_h;
  for (x=start; x<end; x+=(MAPBLOCKUNITS<<FRACBITS))
    {
      ml.a.x = x;
      ml.b.x = x;
      AM_drawMline(&ml, color);
    }
  
  // Figure out start of horizontal gridlines
  start = m_y;
  if ((start-bmaporgy)%(MAPBLOCKUNITS<<FRACBITS))
    start += (MAPBLOCKUNITS<<FRACBITS)
      - ((start-bmaporgy)%(MAPBLOCKUNITS<<FRACBITS));
  end = m_y + m_h;

  // draw horizontal gridlines
  ml.a.x = m_x;
  ml.b.x = m_x + m_w;
  for (y=start; y<end; y+=(MAPBLOCKUNITS<<FRACBITS))
    {
      ml.a.y = y;
      ml.b.y = y;
      AM_drawMline(&ml, color);
    }
}

//
// AM_DoorColor()
//
// Returns the 'color' or key needed for a door linedef type
//
// Passed the type of linedef, returns:
//   -1 if not a keyed door
//    0 if a red key required
//    1 if a blue key required
//    2 if a yellow key required
//    3 if a multiple keys required
//
// jff 4/3/98 add routine to get color of generalized keyed door
//
int AM_DoorColor(int type)
{
  if (GenLockedBase <= type && type< GenDoorBase)
    {
      type -= GenLockedBase;
      type = (type & LockedKey) >> LockedKeyShift;
      if (!type || type==7)
	return 3;  //any or all keys
      else return (type-1)%3;
    }
  switch (type)  // closed keyed door
    {
      case 26: case 32: case 99: case 133:
	/*bluekey*/
	return 1;
      case 27: case 34: case 136: case 137:
	/*yellowkey*/
	return 2;
      case 28: case 33: case 134: case 135:
	/*redkey*/
	return 0;
      default:
	return -1; //not a keyed door
    }
  return -1;     //not a keyed door
}

//
// Determines visible lines, draws them.
// This is LineDef based, not LineSeg based.
//
// jff 1/5/98 many changes in this routine
// backward compatibility not needed, so just changes, no ifs
// addition of clauses for:
//    doors opening, keyed door id, secret sectors,
//    teleports, exit lines, key things
// ability to suppress any of added features or lines with no height changes
//
// support for gamma correction in automap abandoned
//
// jff 4/3/98 changed mapcolor_xxxx=0 as control to disable feature
// jff 4/3/98 changed mapcolor_xxxx=-1 to disable drawing line completely
//
void AM_drawWalls(void)
{
  int i;
  static mline_t l;

  // draw the unclipped visible portions of all lines
  for (i=0;i<numlines;i++)
    {
      l.a.x = lines[i].v1->x;
      l.a.y = lines[i].v1->y;
      l.b.x = lines[i].v2->x;
      l.b.y = lines[i].v2->y;
      // if line has been seen or IDDT has been used
      if (ddt_cheating || (lines[i].flags & ML_MAPPED))
	{
	  if ((lines[i].flags & ML_DONTDRAW) && !ddt_cheating)
	    continue;
	  if (!lines[i].backsector)
	    {
	      if //jff 4/23/98 add exit lines to automap
		(
		 mapcolor_exit &&
		 (
		  lines[i].special==11 ||
		  lines[i].special==52 ||
		  lines[i].special==197 ||
		  lines[i].special==51  ||
		  lines[i].special==124 ||
		  lines[i].special==198
		  )
		 )
		AM_drawMline(&l, mapcolor_exit); // exit line
	      // jff 1/10/98 add new color for 1S secret sector boundary
	      else if (mapcolor_secr && //jff 4/3/98 0 is disable
		       (
			(
			 map_secret_after &&
			 P_WasSecret(lines[i].frontsector) &&
			 !P_IsSecret(lines[i].frontsector)
			 )
			||
			(
			 !map_secret_after &&
			 P_WasSecret(lines[i].frontsector)
			 )
			)
		       )
		AM_drawMline(&l, mapcolor_secr); // line bounding secret sector
	      else                               //jff 2/16/98 fixed bug
		AM_drawMline(&l, mapcolor_wall); // special was cleared
	    }
	  else
	    {
	      // jff 1/10/98 add color change for all teleporter types
	      if
		(
		 mapcolor_tele && !(lines[i].flags & ML_SECRET) && 
		 (lines[i].special == 39 || lines[i].special == 97 ||
		  lines[i].special == 125 || lines[i].special == 126)
		 )
		{ // teleporters
		  AM_drawMline(&l, mapcolor_tele);
		}
	      else if //jff 4/23/98 add exit lines to automap
		(
		 mapcolor_exit &&
		 (
		  lines[i].special==11 ||
		  lines[i].special==52 ||
		  lines[i].special==197 ||
		  lines[i].special==51  ||
		  lines[i].special==124 ||
		  lines[i].special==198
		  )
		 )
		AM_drawMline(&l, mapcolor_exit); // exit line
	      else if //jff 1/5/98 this clause implements showing keyed doors
		(
		 (mapcolor_bdor || mapcolor_ydor || mapcolor_rdor) &&
		 ((lines[i].special >=26 && lines[i].special <=28) ||
		  (lines[i].special >=32 && lines[i].special <=34) ||
		  (lines[i].special >=133 && lines[i].special <=137) ||
		  lines[i].special == 99 ||
		  (lines[i].special>=GenLockedBase && lines[i].special<GenDoorBase))
		 )
		{
		  if ((lines[i].backsector->floorheight==lines[i].backsector->ceilingheight) ||
		      (lines[i].frontsector->floorheight==lines[i].frontsector->ceilingheight))
		    {
		      // closed keyed door
		      switch (AM_DoorColor(lines[i].special))
			{
			  case 1:
			    /*bluekey*/
			    AM_drawMline
			      (
			       &l,
			       mapcolor_bdor? mapcolor_bdor : mapcolor_cchg
			       );
			    break;
			  case 2:
			    /*yellowkey*/
			    AM_drawMline
			      (
			       &l,
			       mapcolor_ydor? mapcolor_ydor : mapcolor_cchg
			       );
			    break;
			  case 0:
			    /*redkey*/
			    AM_drawMline
			      (
			       &l,
			       mapcolor_rdor? mapcolor_rdor : mapcolor_cchg
			       );
			    break;
			  case 3:
			    /*any or all*/
			    AM_drawMline
			      (
			       &l,
			       mapcolor_clsd? mapcolor_clsd : mapcolor_cchg
			       );
			    break;
			}
		    }
		  else AM_drawMline(&l, mapcolor_cchg); // open keyed door
		}
	      else if (lines[i].flags & ML_SECRET)    // secret door
		{
		  AM_drawMline(&l, mapcolor_wall);      // wall color
		}
	      else if
		(
		 mapcolor_clsd &&  
		 !(lines[i].flags & ML_SECRET) &&    // non-secret closed door
		 ((lines[i].backsector->floorheight==lines[i].backsector->ceilingheight) ||
		  (lines[i].frontsector->floorheight==lines[i].frontsector->ceilingheight))
		 )
		{
		  AM_drawMline(&l, mapcolor_clsd);      // non-secret closed door
		} //jff 1/6/98 show secret sector 2S lines
	      else if
		(
		 mapcolor_secr && //jff 2/16/98 fixed bug
		 (                    // special was cleared after getting it
		  (map_secret_after &&
		   (
		    (P_WasSecret(lines[i].frontsector)
		     && !P_IsSecret(lines[i].frontsector)) || 
		    (P_WasSecret(lines[i].backsector)
		     && !P_IsSecret(lines[i].backsector))
		    )
		   )
		  ||  //jff 3/9/98 add logic to not show secret til after entered
		  (   // if map_secret_after is true
		   !map_secret_after &&
		   (P_WasSecret(lines[i].frontsector) ||
		    P_WasSecret(lines[i].backsector))
		   )
		  )
		 )
		{
		  // line bounding secret sector
		  AM_drawMline(&l, mapcolor_secr);
		} //jff 1/6/98 end secret sector line change
	      else if (lines[i].backsector->floorheight !=
		       lines[i].frontsector->floorheight)
		{
		  AM_drawMline(&l, mapcolor_fchg); // floor level change
		}
	      else if (lines[i].backsector->ceilingheight !=
		       lines[i].frontsector->ceilingheight)
		{
		  AM_drawMline(&l, mapcolor_cchg); // ceiling level change
		}
	      else if (mapcolor_flat && ddt_cheating)
		{ 
		  AM_drawMline(&l, mapcolor_flat); //2S lines that appear only in IDDT  
		}
	    }
	} // now draw the lines only visible because the player has computermap
      else if (plr->powers[pw_allmap]) // computermap visible lines
	{
	  if (!(lines[i].flags & ML_DONTDRAW)) // invisible flag lines do not show
	    {
	      if
		(
		 mapcolor_flat
		 ||
		 !lines[i].backsector
		 ||
		 lines[i].backsector->floorheight
		 != lines[i].frontsector->floorheight
		 ||
		 lines[i].backsector->ceilingheight
		 != lines[i].frontsector->ceilingheight
		 )
		AM_drawMline(&l, mapcolor_unsn);
	    }
	}
    }
}


//
// AM_drawLineCharacter()
//
// Draws a vector graphic according to numerous parameters
//
// Passed the structure defining the vector graphic shape, the number
// of vectors in it, the scale to draw it at, the angle to draw it at,
// the color to draw it with, and the map coordinates to draw it at.
// Returns nothing
//
void AM_drawLineCharacter
( mline_t*  lineguy,
  int   lineguylines,
  fixed_t scale,
  angle_t angle,
  int   color,
  fixed_t x,
  fixed_t y )
{
  int   i;
  mline_t l;

  for (i=0;i<lineguylines;i++)
    {
      l.a.x = lineguy[i].a.x;
      l.a.y = lineguy[i].a.y;
      
      if (scale)
	{
	  l.a.x = FixedMul(scale, l.a.x);
	  l.a.y = FixedMul(scale, l.a.y);
	}
      
      if (angle)
	AM_rotate(&l.a.x, &l.a.y, angle);
      
      l.a.x += x;
      l.a.y += y;
      
      l.b.x = lineguy[i].b.x;
      l.b.y = lineguy[i].b.y;
      
      if (scale)
	{
	  l.b.x = FixedMul(scale, l.b.x);
	  l.b.y = FixedMul(scale, l.b.y);
	}
      
      if (angle)
	AM_rotate(&l.b.x, &l.b.y, angle);

      l.b.x += x;
      l.b.y += y;
      
      AM_drawMline(&l, color);
    }
}

//
// AM_drawPlayers()
//
// Draws the player arrow in single player, 
// or all the player arrows in a netgame.
//
// Passed nothing, returns nothing
//
void AM_drawPlayers(void)
{
  int   i;
  player_t* p;
  //jff 1/6/98   static int   their_colors[] = { GREENS, GRAYS, BROWNS, REDS };
  int   their_color = -1;
  int   color;

  if (!netgame)
    {
      if (ddt_cheating)
	AM_drawLineCharacter
	  (
	   cheat_player_arrow,
	   NUMCHEATPLYRLINES,
	   0,
	   plr->mo->angle,
	   mapcolor_sngl,      //jff color
	   plr->mo->x,
	   plr->mo->y
	   ); 
      else
	AM_drawLineCharacter
	  (
	   player_arrow,
	   NUMPLYRLINES,
	   0,
	   plr->mo->angle,
	   mapcolor_sngl,      //jff color
	   plr->mo->x,
	   plr->mo->y);        
      return;
    }
  
  for (i=0;i<MAXPLAYERS;i++)
    {
      their_color=players[i].colormap;
      p = &players[i];
      
      // killough 9/29/98: use !demoplayback so internal demos are no different
      if ( (deathmatch && !demoplayback) && p != plr)
	continue;
      
      if (!playeringame[i])
	continue;
      
      if (p->powers[pw_invisibility])
	color = 246; // *close* to black
      else
	{
	  // sf: extended colour range
#define GREEN 112
	  if(their_color == 0)
	    {
	      color = GREEN;
	    }
	  else
	    {
	      color = translationtables[(their_color-1) * 256 + GREEN];
	    }
	}
      
      AM_drawLineCharacter
	(
	 player_arrow,
	 NUMPLYRLINES,
	 0,
	 p->mo->angle,
	 color,
	 p->mo->x,
	 p->mo->y
	 );
    }
}

//
// AM_drawThings()
//
// Draws the things on the automap in double IDDT cheat mode
//
// Passed colors and colorrange, no longer used
// Returns nothing
//
void AM_drawThings
( int colors,
  int  colorrange)
{
  int   i;
  mobj_t* t;

  // for all sectors
  for (i=0;i<numsectors;i++)
    {
      t = sectors[i].thinglist;
      while (t) // for all things in that sector
	{
	  //jff 1/5/98 case over doomednum of thing being drawn
	  if (mapcolor_rkey || mapcolor_ykey || mapcolor_bkey)
	    {
	      switch(t->info->doomednum)
		{
		  //jff 1/5/98 treat keys special
		  case 38: case 13: //jff  red key
		    AM_drawLineCharacter
		      (
		       cross_mark,
		       NUMCROSSMARKLINES,
		       16<<FRACBITS,
		       t->angle,
		       mapcolor_rkey!=-1? mapcolor_rkey : mapcolor_sprt,
		       t->x,
		       t->y
		       );
		    t = t->snext;
		    continue;
		  case 39: case 6: //jff yellow key
		    AM_drawLineCharacter
		      (
		       cross_mark,
		       NUMCROSSMARKLINES,
		       16<<FRACBITS,
		       t->angle,
		       mapcolor_ykey!=-1? mapcolor_ykey : mapcolor_sprt,
		       t->x,
		       t->y
		       );
		    t = t->snext;
		    continue;
		  case 40: case 5: //jff blue key
		    AM_drawLineCharacter
		      (
		       cross_mark,
		       NUMCROSSMARKLINES,
		       16<<FRACBITS,
		       t->angle,
		       mapcolor_bkey!=-1? mapcolor_bkey : mapcolor_sprt,
		       t->x,
		       t->y
		       );
		    t = t->snext;
		    continue;
		  default:
		    break;
		}
	    }
	  //jff 1/5/98 end added code for keys
	  //jff previously entire code
	  AM_drawLineCharacter
	    (
	     thintriangle_guy,
	     NUMTHINTRIANGLEGUYLINES,
	     16<<FRACBITS,
	     t->angle,
	     // killough 8/8/98: mark friends specially
	     t->flags & MF_FRIEND && !t->player ? mapcolor_frnd :mapcolor_sprt,
	     t->x,
	     t->y
	     );
	  t = t->snext;
	}
    }
}

//
// AM_drawMarks()
//
// Draw the marked locations on the automap
//
// Passed nothing, returns nothing
//
// killough 2/22/98:
// Rewrote AM_drawMarks(). Removed limit on marks.
//
// killough 11/98: added hires support

void AM_drawMarks(void)
{
  int i;
  for (i=0;i<markpointnum;i++) // killough 2/22/98: remove automap mark limit
    if (markpoints[i].x != -1)
      {
	int w = 5 << hires;
	int h = 6 << hires;
	int fx, fy;
	int j = i;
	fixed_t mx, my;

	mx = markpoints[i].x;
	my = markpoints[i].y;

	fx = CXMTOF(mx);
	fy = CYMTOF(my);

	do
	  {
	    int d = j % 10;

	    if (d==1)           // killough 2/22/98: less spacing for '1'
	      fx += 1<<hires;

	    if (fx >= f_x && fx < f_w - w && fy >= f_y && fy < f_h - h)
	      V_DrawPatch(fx >> hires, fy >> hires, FB, marknums[d]);

	    fx -= w - (1<<hires);     // killough 2/22/98: 1 space backwards

	    j /= 10;
	  }
	while (j>0);
      }
}

//
// AM_drawCrosshair()
//
// Draw the single point crosshair representing map center
//
// Passed the color to draw the pixel with
// Returns nothing
//
void AM_drawCrosshair(int color)
{
  fb[(f_w*(f_h+1))/2] = color; // single point for now
}

//
// AM_Drawer()
//
// Draws the entire automap
//
// Passed nothing, returns nothing
//
void AM_Drawer (void)
{
  if (!automapactive) return;
  
  AM_clearFB(mapcolor_back);         //jff 1/5/98 background default color
  if (automap_grid)                  // killough 2/28/98: change var name
    AM_drawGrid(mapcolor_grid);      //jff 1/7/98 grid default color
  AM_drawWalls();
  AM_drawPlayers();
  if (ddt_cheating==2)
    AM_drawThings(mapcolor_sprt, 0); //jff 1/5/98 default double IDDT sprite
  AM_drawCrosshair(mapcolor_hair);   //jff 1/7/98 default crosshair color

  AM_drawMarks();

  V_MarkRect(f_x, f_y, f_w, f_h);
}

//============================================================================
//
// Console Commands
//
//============================================================================

CONSOLE_COMMAND(togglemap, 0)
{
  if(automapactive)
    AM_Stop();
  else
    AM_Start();
}

extern void AM_AddColors();

void AM_AddCommands()
{
  C_AddCommand(togglemap);

  AM_AddColors();
}

//----------------------------------------------------------------------------
//
// $Log: am_map.c,v $
// Revision 1.2  2000/07/29 22:33:02  fraggle
// remove automap test code?
//
// Revision 1.1.1.1  2000/04/30 19:12:08  fraggle
// initial import
//
//
//----------------------------------------------------------------------------

