server/socket/info.C


/*
    CrossFire, A Multiplayer game for X-windows

    Copyright (C) 2002 Mark Wedel & Crossfire Development Team
    Copyright (C) 1992 Frank Tore Johansen

    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., 675 Mass Ave, Cambridge, MA 02139, USA.

    The authors can be reached via e-mail at <crossfire@schmorp.de>
*/

/**
 * \file
 * Basic client output functions.
 *
 * \date 2003-12-02
 *
 * This file implements some of the simpler output functions to the
 * client.  Basically, things like sending text strings along
 */

#include <global.h>
#include <sproto.h>
#include <stdarg.h>
#include <spells.h>
#include <skills.h>

/**
 * Draws a normal message on the client.  It is pretty 
 * much the same thing as the draw_info above, but takes a color
 * parameter.  the esrv_drawinfo functions should probably be
 * replaced with this, just using black as the color.
 */
static void
esrv_print_msg (client *ns, int color, const char *str)
{
  ns->send_packet_printf ("drawinfo %d %s", color, str);
}

/**
 * Draws   an extended message on the client. 
 * ns      the socket to send message to
 * color   color informations (used mainly if client does not support message type)
 * type,
 * subtype type and subtype of text message
 * intro   Intro message to send with main message if client does not support the message type
 * message The main message
 */
static void
esrv_print_ext_msg (client *ns, int color, uint8 type, uint8 subtype, const char *message)
{
  ns->send_packet_printf ("drawextinfo %d %hhu %hhu %s", color, type, subtype, message);
}

/**
 * Frontend for esrv_print_msg
 * \param colr message color
 * \param pl player to send to. Can be NULL
 * \param tmp message to send. Can be NULL
 *
 * If pl is NULL or without contr set, writes message to log.
 *
 * Else sends message to player via esrv_print_msg
 */
static void
print_message (int colr, const object *pl, const char *tmp)
{
  if (!tmp)
    tmp = "[NULL]";

  if (!pl || (pl->type == PLAYER && pl->contr == NULL))
    return;

  if (pl->type == PLAYER)
    esrv_print_msg (pl->contr->ns, colr, (char *) tmp);
}

/**
 * Prints out the contents of specified buffer structures,
 * and clears the string.
 */
void
flush_output_element (const object *pl, Output_Buf * outputs)
{
  char tbuf[MAX_BUF];

  if (outputs->buf == NULL)
    return;
  if (outputs->count > 1)
    {
      snprintf (tbuf, MAX_BUF, "%d times %s", outputs->count, &outputs->buf);
      print_message (NDI_BLACK, pl, tbuf);
    }
  else
    print_message (NDI_BLACK, pl, &outputs->buf);

  outputs->buf = NULL;
  outputs->first_update = 0;    /* This way, it will be reused */
}

/**
 * Sends message to player through output buffers.
 * \param pl player to send message
 * \param buf message to send
 *
 * If player's output_count is 1, sends message directly.
 *
 * Else checks output buffers for specified message.
 *
 * If found, checks if message should be sent now.
 *
 * If message not already in buffers, flushes olders buffer,
 * and adds message to queue.
 */
static void
check_output_buffers (const object *pl, const char *buf)
{
  int i, oldest = 0;

  if (pl->contr->outputs_count < 2)
    {
      print_message (NDI_BLACK, pl, buf);
      return;
    }
  else
    {
      for (i = 0; i < NUM_OUTPUT_BUFS; i++)
        {
          if (pl->contr->outputs[i].buf && !strcmp (buf, pl->contr->outputs[i].buf))
            break;
          else if (pl->contr->outputs[i].first_update < pl->contr->outputs[oldest].first_update)
            oldest = i;
        }
      /* We found a match */
      if (i < NUM_OUTPUT_BUFS)
        {
          pl->contr->outputs[i].count++;
          if (pl->contr->outputs[i].count >= pl->contr->outputs_count)
            {
              flush_output_element (pl, &pl->contr->outputs[i]);
            }
        }
      /* No match - flush the oldest, and put the new one in */
      else
        {
          flush_output_element (pl, &pl->contr->outputs[oldest]);

          pl->contr->outputs[oldest].first_update = pticks;
          pl->contr->outputs[oldest].count = 1;
          pl->contr->outputs[oldest].buf = buf;
        }
    }
}

/**
 * Sends message to player(s).
 *
 * flags is various flags - mostly color, plus a few specials.
 *
 * pri is priority.  It is a little odd - the lower the value, the more
 * important it is.  Thus, 0 gets sent no matter what.  Otherwise, the
 * value must be less than the listening level that the player has set.
 * Unfortunately, there is no clear guideline on what each level does what.
 *
 * pl can be passed as NULL - in fact, this will be done if NDI_ALL is set
 * in the flags.
 *
 * If message is black, and not NDI_UNIQUE, gets sent through output buffers.
 *
 */

void
new_draw_info (int flags, int pri, const object *pl, const char *buf)
{
  if (flags & NDI_ALL)
    {
      for_all_players (pl)
        new_draw_info (flags & ~NDI_ALL, pri, pl->ob, buf);

      return;
    }

  if (!pl || (pl->type == PLAYER && pl->contr == NULL))
    {
      /* Write to the socket? */
      print_message (0, NULL, buf);
      return;
    }

  if (pl->type != PLAYER)
    return;

  if (pri >= pl->contr->listening)
    return;

  if ((flags & NDI_COLOR_MASK) == NDI_BLACK && !(flags & NDI_UNIQUE))
    /* following prints stuff out, as appropriate */
    check_output_buffers (pl, buf);
  else
    print_message (flags & NDI_COLOR_MASK, pl, buf);
}

/**
 * Wrapper for new_draw_info printf-like.
 *
 * This is a pretty trivial function, but it allows us to use printf style
 * formatting, so instead of the calling function having to do it, we do
 * it here.  It may also have advantages in the future for reduction of
 * client/server bandwidth (client could keep track of various strings
 */
void
new_draw_info_format (int flags, int pri, const object *pl, const char *format, ...)
{
  char buf[HUGE_BUF];

  va_list ap;

  va_start (ap, format);

  vsnprintf (buf, HUGE_BUF, format, ap);

  va_end (ap);

  new_draw_info (flags, pri, pl, buf);
}

void
draw_ext_info (int flags, int pri, const object *pl, uint8 type, uint8 subtype, const char *message, const char *oldmessage)
{

  if (!pl || (pl->type != PLAYER) || (pl->contr == NULL))
    return;

  if (pri >= pl->contr->listening)
    return;

  if (!CLIENT_SUPPORT_READABLES (pl->contr->ns, type))
    {
      char *buf = (char *) malloc (strlen (oldmessage == NULL ? message : oldmessage) + 1);

      if (buf == NULL)
        LOG (llevError, "info::draw_ext_info -> Out of memory!");
      else
        {
          strcpy (buf, oldmessage == NULL ? message : oldmessage);
          strip_media_tag (buf);
          new_draw_info (flags, pri, pl, buf);
          free (buf);
        }
    }
  else
    esrv_print_ext_msg (pl->contr->ns, flags & NDI_COLOR_MASK, type, subtype, message);
}

void
draw_ext_info_format (int flags, int pri, const object *pl, uint8 type, uint8 subtype, const char *old_format, char *new_format, ...)
{

  char buf[HUGE_BUF];

  if (!pl || (pl->type != PLAYER) || (pl->contr == NULL))
    return;

  if (pri >= pl->contr->listening)
    return;

  if (!CLIENT_SUPPORT_READABLES (pl->contr->ns, type))
    {
      va_list ap;

      LOG (llevDebug, "Non supported extension text type for client.\n");
      va_start (ap, new_format);
      vsnprintf (buf, HUGE_BUF, old_format, ap);
      va_end (ap);
      new_draw_info (flags, pri, pl, buf);
      return;
    }
  else
    {
      va_list ap;

      va_start (ap, new_format);
      vsnprintf (buf, HUGE_BUF, new_format, ap);
      va_end (ap);
      strip_media_tag (buf);
      esrv_print_ext_msg (pl->contr->ns, flags & NDI_COLOR_MASK, type, subtype, buf);
    }
}

/**
 * Writes to everyone on the map *except* op.  This is useful for emotions.
 */

void
new_info_map_except (int color, maptile * map, object *op, const char *str)
{
  player *pl;

  for_all_players (pl)
    if (pl->ob != NULL && pl->ob->map == map && pl->ob != op)
      {
        new_draw_info (color, 0, pl->ob, str);
      }
}

/**
 * Writes to everyone on the map except op1 and op2
 */

void
new_info_map_except2 (int color, maptile * map, object *op1, object *op2, const char *str)
{
  player *pl;

  for_all_players (pl)
    if (pl->ob != NULL && pl->ob->map == map && pl->ob != op1 && pl->ob != op2)
      {
        new_draw_info (color, 0, pl->ob, str);
      }
}

/**
 * Writes to everyone on the specified map
 */

void
new_info_map (int color, maptile * map, const char *str)
{
  player *pl;

  for_all_players (pl)
    if (pl->ob != NULL && pl->ob->map == map)
      {
        new_draw_info (color, 0, pl->ob, str);
      }
}


/**
 * This does nothing now.  However, in theory, we should probably send
 * something to the client and let the client figure out how it might want
 * to handle this
 */
void
clear_win_info (object *op)
{
}

/**
 * Get player's current range attack in obuf.
 */
void
rangetostring (object *pl, char *obuf)
{
  switch (pl->contr->shoottype)
    {
      case range_none:
        strcpy (obuf, "Range: nothing");
        break;

      case range_bow:
        {
          object *op;

          for (op = pl->inv; op; op = op->below)
            if (op->type == BOW && QUERY_FLAG (op, FLAG_APPLIED))
              break;

          if (op == NULL)
            break;

          sprintf (obuf, "Range: %s (%s)", query_base_name (op, 0), op->race ? (const char *) op->race : "nothing");
        }
        break;

      case range_magic:
        if (settings.casting_time == TRUE)
          {
            if (pl->casting_time > -1)
              {
                if (pl->casting_time == 0)
                  sprintf (obuf, "Range: Holding spell (%s)", &pl->spell->name);
                else
                  sprintf (obuf, "Range: Casting spell (%s)", &pl->spell->name);
              }
            else
              sprintf (obuf, "Range: spell (%s)", &pl->contr->ranges[range_magic]->name);
          }
        else
          sprintf (obuf, "Range: spell (%s)", &pl->contr->ranges[range_magic]->name);
        break;

      case range_misc:
        sprintf (obuf, "Range: %s", pl->contr->ranges[range_misc] ? query_base_name (pl->contr->ranges[range_misc], 0) : "none");
        break;

        /* range_scroll is only used for controlling golems.  If the
         * the player does not have a golem, reset some things.
         */
      case range_golem:
        if (pl->contr->ranges[range_golem] != NULL)
          sprintf (obuf, "Range: golem (%s)", &pl->contr->ranges[range_golem]->name);
        else
          {
            pl->contr->shoottype = range_none;
            strcpy (obuf, "Range: nothing");
          }
        break;

      case range_skill:
        sprintf (obuf, "Skill: %s", pl->chosen_skill != NULL ? (const char *) pl->chosen_skill->name : "none");
        break;

      case range_builder:
        sprintf (obuf, "Builder: %s", query_base_name (pl->contr->ranges[range_builder], 0));
        break;

      default:
        strcpy (obuf, "Range: illegal");
    }
}

/**
 * Sets player title.
 */
void
set_title (object *pl, char *buf)
{
  /* Eneq(@csd.uu.se): Let players define their own titles. */
  if (pl->contr->own_title[0] == '\0')
    sprintf (buf, "Player: %s the %s", (const char *) pl->name, (const char *) pl->contr->title);
  else
    sprintf (buf, "Player: %s %s", (const char *) pl->name, (const char *) pl->contr->own_title);
}


/**
 * Helper for magic map creation.
 *
 * Takes a player, the map_mark array and an x and y starting position.
 * pl is the player.
 * px, py are offsets from the player.
 *
 * This function examines all the adjacant spaces next to px, py.
 * It updates the map_mark arrow with the color and high bits set
 * for various code values.
 */
static void
magic_mapping_mark_recursive (object *pl, char *map_mark, int px, int py)
{
  int x, y, dx, dy, mflags;
  sint16 nx, ny;
  maptile *mp;
  New_Face *f;

  for (dx = -1; dx <= 1; dx++)
    {
      for (dy = -1; dy <= 1; dy++)
        {
          x = px + dx;
          y = py + dy;

          if (FABS (x) >= MAGIC_MAP_HALF || FABS (y) >= MAGIC_MAP_HALF)
            continue;

          mp = pl->map;
          nx = pl->x + x;
          ny = pl->y + y;

          mflags = get_map_flags (pl->map, &mp, nx, ny, &nx, &ny);
          if (mflags & P_OUT_OF_MAP)
            continue;

          if (map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] == 0)
            {
              f = GET_MAP_FACE (mp, nx, ny, 0);
              if (f == blank_face)
                f = GET_MAP_FACE (mp, nx, ny, 1);
              if (f == blank_face)
                f = GET_MAP_FACE (mp, nx, ny, 2);

              /* Should probably have P_NO_MAGIC here also, but then shops don't
               * work.
               */
              if (mflags & P_BLOCKSVIEW)
                map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] = FACE_WALL | (f ? f->magicmap : 0);
              else
                {
                  map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] = FACE_FLOOR | (f ? f->magicmap : 0);
                  magic_mapping_mark_recursive (pl, map_mark, x, y);
                }
            }
        }
    }
}


/**
 * Creates magic map for player.
 *
 * Note:  For improved magic mapping display, the space that blocks
 * the view is now marked with value 2.  Any dependencies of map_mark
 * being nonzero have been changed to check for 1.  Also, since
 * map_mark is a char value, putting 2 in should cause no problems.
 *
 * This function examines the map the player is on, and determines what
 * is visible.  2 is set for walls or objects that blocks view.  1
 * is for open spaces.  map_mark should already have been initialized
 * to zero before this is called.
 * strength is an initial strength*2 rectangular area that we automatically
 * see in/penetrate through.
 */

void
magic_mapping_mark (object *pl, char *map_mark, int strength)
{
  int x, y, mflags;
  sint16 nx, ny;
  maptile *mp;
  New_Face *f;

  for (x = -strength; x < strength; x++)
    {
      for (y = -strength; y < strength; y++)
        {
          mp = pl->map;
          nx = pl->x + x;
          ny = pl->y + y;
          mflags = get_map_flags (pl->map, &mp, nx, ny, &nx, &ny);
          if (mflags & P_OUT_OF_MAP)
            continue;
          else
            {
              f = GET_MAP_FACE (mp, nx, ny, 0);
              if (f == blank_face)
                f = GET_MAP_FACE (mp, nx, ny, 1);
              if (f == blank_face)
                f = GET_MAP_FACE (mp, nx, ny, 2);
            }

          if (mflags & P_BLOCKSVIEW)
            map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] = FACE_WALL | (f ? f->magicmap : 0);
          else
            {
              map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] = FACE_FLOOR | (f ? f->magicmap : 0);
              magic_mapping_mark_recursive (pl, map_mark, x, y);
            }
        }
    }
}

/**
 * Creates and sends magic map to player.
 *
 * The following function is a lot messier than it really should be,
 * but there is no real easy solution.
 *
 * Mark Wedel
 */

void
draw_magic_map (object *pl)
{
  char *map_mark = (char *)calloc (MAGIC_MAP_SIZE * MAGIC_MAP_SIZE, 1);
  int xmin, xmax, ymin, ymax;

  if (pl->type != PLAYER)
    {
      LOG (llevError, "Non player object called draw_map.\n");
      return;
    }

  /* First, we figure out what spaces are 'reachable' by the player */
  magic_mapping_mark (pl, map_mark, 3);

  /* We now go through and figure out what spaces have been
   * marked, and thus figure out rectangular region we send
   * to the client (eg, if only a 10x10 area is visible, we only
   * want to send those 100 spaces.)
   */
  xmin = MAGIC_MAP_SIZE;
  ymin = MAGIC_MAP_SIZE;
  xmax = 0;
  ymax = 0;

  for (int x = 0; x < MAGIC_MAP_SIZE; x++)
    for (int y = 0; y < MAGIC_MAP_SIZE; y++)
      if (map_mark[x + pl->map->width * y] | FACE_FLOOR)
        {
          xmin = x < xmin ? x : xmin;
          xmax = x > xmax ? x : xmax;
          ymin = y < ymin ? y : ymin;
          ymax = y > ymax ? y : ymax;
        }

  packet sl;
  sl.printf ("magicmap %d %d %d %d ", (xmax - xmin + 1), (ymax - ymin + 1),
             MAGIC_MAP_HALF - xmin, MAGIC_MAP_HALF - ymin);

  for (int y = ymin; y <= ymax; y++)
    for (int x = xmin; x <= xmax; x++)
      sl << uint8 (map_mark[x + MAGIC_MAP_SIZE * y] & ~FACE_FLOOR);

  pl->contr->ns->send_packet (sl);

  free (map_mark);
}

/**
 * Send a kill log record to sockets
 */
void
Log_Kill (const char *Who, const char *What, int WhatType, const char *With, int WithType)
{
  size_t len;
  char buf[MAX_BUF];

  if (With != NULL)
    snprintf (buf, MAX_BUF, "%s\t%s\t%d\t%s\t%d\n", Who, What, WhatType, With, WithType);
  else
    snprintf (buf, MAX_BUF, "%s\t%s\t%d\n", Who, What, WhatType);

  len = strlen (buf);
}

Revision:	1.27
Committed:	Tue Dec 26 17:11:40 2006 UTC (17 years, 5 months ago) by root
Content type:	text/plain
Branch:	MAIN
Changes since 1.26:	+2 -4 lines
Log Message:	reformat
#	User	Rev	Content
1	root	1.8
2	elmex	1.1	/*
3			CrossFire, A Multiplayer game for X-windows
4
5			Copyright (C) 2002 Mark Wedel & Crossfire Development Team
6			Copyright (C) 1992 Frank Tore Johansen
7
8			This program is free software; you can redistribute it and/or modify
9			it under the terms of the GNU General Public License as published by
10			the Free Software Foundation; either version 2 of the License, or
11			(at your option) any later version.
12
13			This program is distributed in the hope that it will be useful,
14			but WITHOUT ANY WARRANTY; without even the implied warranty of
15			MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16			GNU General Public License for more details.
17
18			You should have received a copy of the GNU General Public License
19			along with this program; if not, write to the Free Software
20			Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21
22	root	1.6	The authors can be reached via e-mail at <crossfire@schmorp.de>
23	elmex	1.1	*/
24
25			/**
26			* \file
27			* Basic client output functions.
28			*
29			* \date 2003-12-02
30			*
31			* This file implements some of the simpler output functions to the
32			* client. Basically, things like sending text strings along
33			*/
34
35			#include <global.h>
36			#include <sproto.h>
37			#include <stdarg.h>
38			#include <spells.h>
39			#include <skills.h>
40
41			/**
42			* Draws a normal message on the client. It is pretty
43			* much the same thing as the draw_info above, but takes a color
44			* parameter. the esrv_drawinfo functions should probably be
45			* replaced with this, just using black as the color.
46			*/
47	root	1.5	static void
48	root	1.22	esrv_print_msg (client ns, int color, const char str)
49	elmex	1.1	{
50	root	1.21	ns->send_packet_printf ("drawinfo %d %s", color, str);
51	elmex	1.1	}
52
53			/**
54			* Draws an extended message on the client.
55			* ns the socket to send message to
56			* color color informations (used mainly if client does not support message type)
57			* type,
58			* subtype type and subtype of text message
59			* intro Intro message to send with main message if client does not support the message type
60			* message The main message
61			*/
62	root	1.5	static void
63	root	1.22	esrv_print_ext_msg (client ns, int color, uint8 type, uint8 subtype, const char message)
64	elmex	1.1	{
65	root	1.21	ns->send_packet_printf ("drawextinfo %d %hhu %hhu %s", color, type, subtype, message);
66	elmex	1.1	}
67
68			/**
69			* Frontend for esrv_print_msg
70			* \param colr message color
71			* \param pl player to send to. Can be NULL
72			* \param tmp message to send. Can be NULL
73			*
74			* If pl is NULL or without contr set, writes message to log.
75			*
76			* Else sends message to player via esrv_print_msg
77			*/
78	root	1.5	static void
79			print_message (int colr, const object pl, const char tmp)
80			{
81	root	1.11	if (!tmp)
82			tmp = "[NULL]";
83	elmex	1.1
84			if (!pl \|\| (pl->type == PLAYER && pl->contr == NULL))
85			return;
86
87	root	1.5	if (pl->type == PLAYER)
88	root	1.23	esrv_print_msg (pl->contr->ns, colr, (char *) tmp);
89	elmex	1.1	}
90
91			/**
92			* Prints out the contents of specified buffer structures,
93			* and clears the string.
94			*/
95	root	1.5	void
96			flush_output_element (const object pl, Output_Buf outputs)
97	elmex	1.1	{
98	root	1.5	char tbuf[MAX_BUF];
99	elmex	1.1
100	root	1.5	if (outputs->buf == NULL)
101			return;
102			if (outputs->count > 1)
103			{
104			snprintf (tbuf, MAX_BUF, "%d times %s", outputs->count, &outputs->buf);
105			print_message (NDI_BLACK, pl, tbuf);
106			}
107			else
108			print_message (NDI_BLACK, pl, &outputs->buf);
109	elmex	1.1
110	root	1.5	outputs->buf = NULL;
111			outputs->first_update = 0; /* This way, it will be reused */
112	elmex	1.1	}
113
114			/**
115			* Sends message to player through output buffers.
116			* \param pl player to send message
117			* \param buf message to send
118			*
119			* If player's output_count is 1, sends message directly.
120			*
121			* Else checks output buffers for specified message.
122			*
123			* If found, checks if message should be sent now.
124			*
125			* If message not already in buffers, flushes olders buffer,
126			* and adds message to queue.
127			*/
128	root	1.5	static void
129			check_output_buffers (const object pl, const char buf)
130	elmex	1.1	{
131	root	1.5	int i, oldest = 0;
132	elmex	1.1
133	root	1.5	if (pl->contr->outputs_count < 2)
134			{
135			print_message (NDI_BLACK, pl, buf);
136			return;
137			}
138			else
139			{
140			for (i = 0; i < NUM_OUTPUT_BUFS; i++)
141			{
142			if (pl->contr->outputs[i].buf && !strcmp (buf, pl->contr->outputs[i].buf))
143			break;
144			else if (pl->contr->outputs[i].first_update < pl->contr->outputs[oldest].first_update)
145			oldest = i;
146	root	1.2	}
147	root	1.5	/* We found a match */
148			if (i < NUM_OUTPUT_BUFS)
149			{
150			pl->contr->outputs[i].count++;
151			if (pl->contr->outputs[i].count >= pl->contr->outputs_count)
152			{
153			flush_output_element (pl, &pl->contr->outputs[i]);
154	root	1.2	}
155			}
156	root	1.5	/* No match - flush the oldest, and put the new one in */
157			else
158			{
159			flush_output_element (pl, &pl->contr->outputs[oldest]);
160
161			pl->contr->outputs[oldest].first_update = pticks;
162			pl->contr->outputs[oldest].count = 1;
163			pl->contr->outputs[oldest].buf = buf;
164	root	1.2	}
165	elmex	1.1	}
166			}
167	root	1.5
168	elmex	1.1	/**
169			* Sends message to player(s).
170			*
171			* flags is various flags - mostly color, plus a few specials.
172			*
173			* pri is priority. It is a little odd - the lower the value, the more
174			* important it is. Thus, 0 gets sent no matter what. Otherwise, the
175			* value must be less than the listening level that the player has set.
176			* Unfortunately, there is no clear guideline on what each level does what.
177			*
178			* pl can be passed as NULL - in fact, this will be done if NDI_ALL is set
179			* in the flags.
180			*
181			* If message is black, and not NDI_UNIQUE, gets sent through output buffers.
182			*
183			*/
184
185	root	1.5	void
186			new_draw_info (int flags, int pri, const object pl, const char buf)
187	elmex	1.1	{
188	root	1.5	if (flags & NDI_ALL)
189			{
190	root	1.27	for_all_players (pl)
191			new_draw_info (flags & ~NDI_ALL, pri, pl->ob, buf);
192	elmex	1.1
193	root	1.5	return;
194	elmex	1.1	}
195	root	1.11
196	root	1.5	if (!pl \|\| (pl->type == PLAYER && pl->contr == NULL))
197			{
198			/* Write to the socket? */
199			print_message (0, NULL, buf);
200			return;
201	elmex	1.1	}
202	root	1.11
203	root	1.5	if (pl->type != PLAYER)
204			return;
205	root	1.11
206	root	1.5	if (pri >= pl->contr->listening)
207			return;
208
209			if ((flags & NDI_COLOR_MASK) == NDI_BLACK && !(flags & NDI_UNIQUE))
210	root	1.11	/* following prints stuff out, as appropriate */
211			check_output_buffers (pl, buf);
212	root	1.5	else
213	root	1.11	print_message (flags & NDI_COLOR_MASK, pl, buf);
214	elmex	1.1	}
215
216			/**
217			* Wrapper for new_draw_info printf-like.
218			*
219			* This is a pretty trivial function, but it allows us to use printf style
220			* formatting, so instead of the calling function having to do it, we do
221			* it here. It may also have advantages in the future for reduction of
222			* client/server bandwidth (client could keep track of various strings
223			*/
224	root	1.5	void
225			new_draw_info_format (int flags, int pri, const object pl, const char format, ...)
226	elmex	1.1	{
227	root	1.5	char buf[HUGE_BUF];
228
229			va_list ap;
230
231			va_start (ap, format);
232	elmex	1.1
233	root	1.5	vsnprintf (buf, HUGE_BUF, format, ap);
234	elmex	1.1
235	root	1.5	va_end (ap);
236	elmex	1.1
237	root	1.5	new_draw_info (flags, pri, pl, buf);
238	elmex	1.1	}
239
240	root	1.5	void
241			draw_ext_info (int flags, int pri, const object pl, uint8 type, uint8 subtype, const char message, const char *oldmessage)
242			{
243
244			if (!pl \|\| (pl->type != PLAYER) \|\| (pl->contr == NULL))
245			return;
246
247			if (pri >= pl->contr->listening)
248			return;
249	root	1.17
250	root	1.23	if (!CLIENT_SUPPORT_READABLES (pl->contr->ns, type))
251	root	1.5	{
252			char buf = (char ) malloc (strlen (oldmessage == NULL ? message : oldmessage) + 1);
253
254			if (buf == NULL)
255			LOG (llevError, "info::draw_ext_info -> Out of memory!");
256			else
257			{
258			strcpy (buf, oldmessage == NULL ? message : oldmessage);
259			strip_media_tag (buf);
260			new_draw_info (flags, pri, pl, buf);
261			free (buf);
262	elmex	1.1	}
263	root	1.5	}
264			else
265	root	1.23	esrv_print_ext_msg (pl->contr->ns, flags & NDI_COLOR_MASK, type, subtype, message);
266	elmex	1.1	}
267
268	root	1.5	void
269			draw_ext_info_format (int flags, int pri, const object pl, uint8 type, uint8 subtype, const char old_format, char *new_format, ...)
270			{
271
272			char buf[HUGE_BUF];
273
274			if (!pl \|\| (pl->type != PLAYER) \|\| (pl->contr == NULL))
275			return;
276
277			if (pri >= pl->contr->listening)
278			return;
279	root	1.17
280	root	1.23	if (!CLIENT_SUPPORT_READABLES (pl->contr->ns, type))
281	root	1.5	{
282			va_list ap;
283
284			LOG (llevDebug, "Non supported extension text type for client.\n");
285			va_start (ap, new_format);
286			vsnprintf (buf, HUGE_BUF, old_format, ap);
287			va_end (ap);
288			new_draw_info (flags, pri, pl, buf);
289			return;
290			}
291			else
292			{
293			va_list ap;
294
295			va_start (ap, new_format);
296			vsnprintf (buf, HUGE_BUF, new_format, ap);
297			va_end (ap);
298			strip_media_tag (buf);
299	root	1.23	esrv_print_ext_msg (pl->contr->ns, flags & NDI_COLOR_MASK, type, subtype, buf);
300	elmex	1.1	}
301			}
302	root	1.5
303	elmex	1.1	/**
304			* Writes to everyone on the map except op. This is useful for emotions.
305			*/
306
307	root	1.5	void
308	root	1.8	new_info_map_except (int color, maptile * map, object op, const char str)
309	root	1.5	{
310			player *pl;
311	elmex	1.1
312	root	1.24	for_all_players (pl)
313	root	1.5	if (pl->ob != NULL && pl->ob->map == map && pl->ob != op)
314			{
315			new_draw_info (color, 0, pl->ob, str);
316			}
317	elmex	1.1	}
318
319			/**
320			* Writes to everyone on the map except op1 and op2
321			*/
322
323	root	1.5	void
324	root	1.8	new_info_map_except2 (int color, maptile * map, object op1, object op2, const char *str)
325	root	1.5	{
326			player *pl;
327
328	root	1.24	for_all_players (pl)
329	root	1.5	if (pl->ob != NULL && pl->ob->map == map && pl->ob != op1 && pl->ob != op2)
330			{
331			new_draw_info (color, 0, pl->ob, str);
332			}
333	elmex	1.1	}
334
335			/**
336			* Writes to everyone on the specified map
337			*/
338
339	root	1.5	void
340	root	1.8	new_info_map (int color, maptile * map, const char *str)
341	root	1.5	{
342			player *pl;
343	elmex	1.1
344	root	1.24	for_all_players (pl)
345	root	1.5	if (pl->ob != NULL && pl->ob->map == map)
346			{
347			new_draw_info (color, 0, pl->ob, str);
348			}
349	elmex	1.1	}
350
351
352			/**
353			* This does nothing now. However, in theory, we should probably send
354			* something to the client and let the client figure out how it might want
355			* to handle this
356			*/
357	root	1.5	void
358			clear_win_info (object *op)
359	elmex	1.1	{
360			}
361
362			/**
363			* Get player's current range attack in obuf.
364			*/
365	root	1.5	void
366			rangetostring (object pl, char obuf)
367	elmex	1.1	{
368	root	1.5	switch (pl->contr->shoottype)
369			{
370	root	1.8	case range_none:
371			strcpy (obuf, "Range: nothing");
372			break;
373	root	1.2
374	root	1.8	case range_bow:
375			{
376			object *op;
377	root	1.2
378	root	1.8	for (op = pl->inv; op; op = op->below)
379			if (op->type == BOW && QUERY_FLAG (op, FLAG_APPLIED))
380	root	1.5	break;
381	root	1.10
382	root	1.8	if (op == NULL)
383			break;
384
385			sprintf (obuf, "Range: %s (%s)", query_base_name (op, 0), op->race ? (const char *) op->race : "nothing");
386			}
387			break;
388	root	1.5
389	root	1.8	case range_magic:
390			if (settings.casting_time == TRUE)
391			{
392			if (pl->casting_time > -1)
393			{
394			if (pl->casting_time == 0)
395	root	1.9	sprintf (obuf, "Range: Holding spell (%s)", &pl->spell->name);
396	root	1.8	else
397	root	1.9	sprintf (obuf, "Range: Casting spell (%s)", &pl->spell->name);
398	root	1.8	}
399			else
400			sprintf (obuf, "Range: spell (%s)", &pl->contr->ranges[range_magic]->name);
401	root	1.5	}
402	root	1.8	else
403			sprintf (obuf, "Range: spell (%s)", &pl->contr->ranges[range_magic]->name);
404			break;
405
406			case range_misc:
407			sprintf (obuf, "Range: %s", pl->contr->ranges[range_misc] ? query_base_name (pl->contr->ranges[range_misc], 0) : "none");
408			break;
409
410			/* range_scroll is only used for controlling golems. If the
411			* the player does not have a golem, reset some things.
412			*/
413			case range_golem:
414			if (pl->contr->ranges[range_golem] != NULL)
415			sprintf (obuf, "Range: golem (%s)", &pl->contr->ranges[range_golem]->name);
416			else
417			{
418			pl->contr->shoottype = range_none;
419			strcpy (obuf, "Range: nothing");
420			}
421			break;
422	root	1.2
423	root	1.8	case range_skill:
424			sprintf (obuf, "Skill: %s", pl->chosen_skill != NULL ? (const char *) pl->chosen_skill->name : "none");
425			break;
426
427			case range_builder:
428			sprintf (obuf, "Builder: %s", query_base_name (pl->contr->ranges[range_builder], 0));
429			break;
430	elmex	1.1
431	root	1.8	default:
432			strcpy (obuf, "Range: illegal");
433	elmex	1.1	}
434			}
435
436			/**
437			* Sets player title.
438			*/
439	root	1.5	void
440			set_title (object pl, char buf)
441	elmex	1.1	{
442	root	1.5	/* Eneq(@csd.uu.se): Let players define their own titles. */
443			if (pl->contr->own_title[0] == '\0')
444			sprintf (buf, "Player: %s the %s", (const char ) pl->name, (const char ) pl->contr->title);
445			else
446			sprintf (buf, "Player: %s %s", (const char ) pl->name, (const char ) pl->contr->own_title);
447	elmex	1.1	}
448
449
450			/**
451			* Helper for magic map creation.
452			*
453			* Takes a player, the map_mark array and an x and y starting position.
454			* pl is the player.
455			* px, py are offsets from the player.
456			*
457			* This function examines all the adjacant spaces next to px, py.
458			* It updates the map_mark arrow with the color and high bits set
459			* for various code values.
460			*/
461	root	1.5	static void
462			magic_mapping_mark_recursive (object pl, char map_mark, int px, int py)
463	elmex	1.1	{
464	root	1.5	int x, y, dx, dy, mflags;
465			sint16 nx, ny;
466	root	1.7	maptile *mp;
467	root	1.5	New_Face *f;
468
469			for (dx = -1; dx <= 1; dx++)
470			{
471			for (dy = -1; dy <= 1; dy++)
472			{
473			x = px + dx;
474			y = py + dy;
475
476			if (FABS (x) >= MAGIC_MAP_HALF \|\| FABS (y) >= MAGIC_MAP_HALF)
477			continue;
478
479			mp = pl->map;
480			nx = pl->x + x;
481			ny = pl->y + y;
482
483			mflags = get_map_flags (pl->map, &mp, nx, ny, &nx, &ny);
484			if (mflags & P_OUT_OF_MAP)
485			continue;
486
487			if (map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] == 0)
488			{
489			f = GET_MAP_FACE (mp, nx, ny, 0);
490			if (f == blank_face)
491			f = GET_MAP_FACE (mp, nx, ny, 1);
492			if (f == blank_face)
493			f = GET_MAP_FACE (mp, nx, ny, 2);
494
495			/* Should probably have P_NO_MAGIC here also, but then shops don't
496			* work.
497			*/
498			if (mflags & P_BLOCKSVIEW)
499			map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] = FACE_WALL \| (f ? f->magicmap : 0);
500			else
501			{
502			map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] = FACE_FLOOR \| (f ? f->magicmap : 0);
503			magic_mapping_mark_recursive (pl, map_mark, x, y);
504	root	1.2	}
505			}
506			}
507	elmex	1.1	}
508			}
509
510
511			/**
512			* Creates magic map for player.
513			*
514			* Note: For improved magic mapping display, the space that blocks
515			* the view is now marked with value 2. Any dependencies of map_mark
516			* being nonzero have been changed to check for 1. Also, since
517			* map_mark is a char value, putting 2 in should cause no problems.
518			*
519			* This function examines the map the player is on, and determines what
520			* is visible. 2 is set for walls or objects that blocks view. 1
521			* is for open spaces. map_mark should already have been initialized
522			* to zero before this is called.
523			* strength is an initial strength*2 rectangular area that we automatically
524			* see in/penetrate through.
525			*/
526
527	root	1.5	void
528			magic_mapping_mark (object pl, char map_mark, int strength)
529	elmex	1.1	{
530	root	1.5	int x, y, mflags;
531			sint16 nx, ny;
532	root	1.7	maptile *mp;
533	root	1.5	New_Face *f;
534
535			for (x = -strength; x < strength; x++)
536			{
537			for (y = -strength; y < strength; y++)
538			{
539			mp = pl->map;
540			nx = pl->x + x;
541			ny = pl->y + y;
542			mflags = get_map_flags (pl->map, &mp, nx, ny, &nx, &ny);
543			if (mflags & P_OUT_OF_MAP)
544			continue;
545			else
546			{
547			f = GET_MAP_FACE (mp, nx, ny, 0);
548			if (f == blank_face)
549			f = GET_MAP_FACE (mp, nx, ny, 1);
550			if (f == blank_face)
551			f = GET_MAP_FACE (mp, nx, ny, 2);
552	root	1.2	}
553
554	root	1.5	if (mflags & P_BLOCKSVIEW)
555			map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] = FACE_WALL \| (f ? f->magicmap : 0);
556			else
557			{
558			map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] = FACE_FLOOR \| (f ? f->magicmap : 0);
559			magic_mapping_mark_recursive (pl, map_mark, x, y);
560	root	1.2	}
561			}
562	elmex	1.1	}
563			}
564
565			/**
566			* Creates and sends magic map to player.
567			*
568			* The following function is a lot messier than it really should be,
569			* but there is no real easy solution.
570			*
571			* Mark Wedel
572			*/
573
574	root	1.5	void
575			draw_magic_map (object *pl)
576	elmex	1.1	{
577	root	1.13	char map_mark = (char )calloc (MAGIC_MAP_SIZE * MAGIC_MAP_SIZE, 1);
578	root	1.5	int xmin, xmax, ymin, ymax;
579
580			if (pl->type != PLAYER)
581			{
582			LOG (llevError, "Non player object called draw_map.\n");
583			return;
584			}
585
586			/* First, we figure out what spaces are 'reachable' by the player */
587			magic_mapping_mark (pl, map_mark, 3);
588
589			/* We now go through and figure out what spaces have been
590			* marked, and thus figure out rectangular region we send
591			* to the client (eg, if only a 10x10 area is visible, we only
592			* want to send those 100 spaces.)
593			*/
594			xmin = MAGIC_MAP_SIZE;
595			ymin = MAGIC_MAP_SIZE;
596			xmax = 0;
597			ymax = 0;
598	root	1.13
599			for (int x = 0; x < MAGIC_MAP_SIZE; x++)
600			for (int y = 0; y < MAGIC_MAP_SIZE; y++)
601	root	1.25	if (map_mark[x + pl->map->width * y] \| FACE_FLOOR)
602	root	1.5	{
603	root	1.13	xmin = x < xmin ? x : xmin;
604			xmax = x > xmax ? x : xmax;
605			ymin = y < ymin ? y : ymin;
606			ymax = y > ymax ? y : ymax;
607	root	1.2	}
608	elmex	1.1
609	root	1.15	packet sl;
610	root	1.13	sl.printf ("magicmap %d %d %d %d ", (xmax - xmin + 1), (ymax - ymin + 1),
611			MAGIC_MAP_HALF - xmin, MAGIC_MAP_HALF - ymin);
612
613			for (int y = ymin; y <= ymax; y++)
614			for (int x = xmin; x <= xmax; x++)
615			sl << uint8 (map_mark[x + MAGIC_MAP_SIZE * y] & ~FACE_FLOOR);
616
617	root	1.23	pl->contr->ns->send_packet (sl);
618	root	1.5
619			free (map_mark);
620	elmex	1.1	}
621
622			/**
623			* Send a kill log record to sockets
624			*/
625	root	1.5	void
626			Log_Kill (const char Who, const char What, int WhatType, const char *With, int WithType)
627			{
628			size_t len;
629			char buf[MAX_BUF];
630
631			if (With != NULL)
632	root	1.11	snprintf (buf, MAX_BUF, "%s\t%s\t%d\t%s\t%d\n", Who, What, WhatType, With, WithType);
633	root	1.5	else
634	root	1.11	snprintf (buf, MAX_BUF, "%s\t%s\t%d\n", Who, What, WhatType);
635
636	root	1.5	len = strlen (buf);
637	elmex	1.1	}
638	root	1.22