server/socket/info.C

/*
 * CrossFire, A Multiplayer game for X-windows
 * 
 * Copyright (C) 2005, 2006, 2007 Marc Lehmann & Crossfire+ Development Team
 * 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);
}

bool
client::msg_suppressed (const char *msg)
{
  if (!pl)
    return false;

  if (pl->outputs_count <= 1 || !pl->outputs_sync)
    return false;

  int len = strlen (msg);

  if (len > MSG_BUF_SIZE)
    return false;

  msg_buf *lru = msgbuf;
  for (msg_buf *buf = msgbuf; buf < msgbuf + MSG_BUF_COUNT; ++buf)
    {
      if (len == buf->len && !memcmp (msg, buf->msg, len))
        {
          // found matching buf, see if expired
          if (buf->expire <= pticks || !buf->count)
            {
              // yes, take over matching buffer, print
              buf->expire = pticks + pl->outputs_sync;
              buf->count  = pl->outputs_count;

              return false;
            }

          // no, suppress
          --buf->count;
          return true;
        }

      if (lru->expire > buf->expire)
        lru = buf;
    }

  // new message, evoke oldest buffer
  lru->expire = pticks + pl->outputs_sync;
  lru->count  = pl->outputs_count;
  lru->len    = len;
  memcpy (lru->msg, msg, len);

  return false;
}

/**
 * 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 || !pl->contr->ns)
    return;

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

  if ((flags & (NDI_COLOR_MASK | NDI_UNIQUE)) != NDI_BLACK
      || !pl->contr->ns->msg_suppressed (buf))
    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)
{
  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)
{
  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)
{
  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 (object *golem = pl->contr->ranges[range_golem])
          sprintf (obuf, "Range: golem (%s)", &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);
}

// formerly a macro, used only by magic map, so optimised it out
static inline faceidx
GET_MAP_FACE (maptile *m, int x, int y, int layer)
{
  if (object *op = GET_MAP_FACE_OBJ (m, x, y, layer))
    return op->face;
  else
    return 0;
}

/**
 * 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;

  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)
            {
              int 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);
                }

              int magicmap = faces [f].magicmap;

              /* 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 | magicmap;
              else
                {
                  map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] = FACE_FLOOR | magicmap;
                  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 initialised
 * 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;

  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;

          int 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);
            }

          int magicmap = faces [f].magicmap;

          if (mflags & P_BLOCKSVIEW)
            map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] = FACE_WALL | magicmap;
          else
            {
              map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] = FACE_FLOOR | magicmap;
              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:	1.38
Committed:	Wed Apr 25 18:47:51 2007 UTC (17 years, 1 month ago) by root
Content type:	text/plain
Branch:	MAIN
Changes since 1.37:	+35 -67 lines
Log Message:	rewrote output buffer handling. the new system: - outputs messages immediately. - suppresses following duplicates. - enforces a minimum setting. - is, as usual, faster and leaner. the only problem is that the code worked out of the box, which is not reassuring.
#	Content
1	/*
2	* CrossFire, A Multiplayer game for X-windows
3	*
4	* Copyright (C) 2005, 2006, 2007 Marc Lehmann & Crossfire+ Development Team
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	* The authors can be reached via e-mail at <crossfire@schmorp.de>
23	*/
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	static void
48	esrv_print_msg (client ns, int color, const char str)
49	{
50	ns->send_packet_printf ("drawinfo %d %s", color, str);
51	}
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	static void
63	esrv_print_ext_msg (client ns, int color, uint8 type, uint8 subtype, const char message)
64	{
65	ns->send_packet_printf ("drawextinfo %d %hhu %hhu %s", color, type, subtype, message);
66	}
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	static void
79	print_message (int colr, const object pl, const char tmp)
80	{
81	if (!tmp)
82	tmp = "[NULL]";
83
84	if (!pl \|\| (pl->type == PLAYER && pl->contr == NULL))
85	return;
86
87	if (pl->type == PLAYER)
88	esrv_print_msg (pl->contr->ns, colr, (char *) tmp);
89	}
90
91	bool
92	client::msg_suppressed (const char *msg)
93	{
94	if (!pl)
95	return false;
96
97	if (pl->outputs_count <= 1 \|\| !pl->outputs_sync)
98	return false;
99
100	int len = strlen (msg);
101
102	if (len > MSG_BUF_SIZE)
103	return false;
104
105	msg_buf *lru = msgbuf;
106	for (msg_buf *buf = msgbuf; buf < msgbuf + MSG_BUF_COUNT; ++buf)
107	{
108	if (len == buf->len && !memcmp (msg, buf->msg, len))
109	{
110	// found matching buf, see if expired
111	if (buf->expire <= pticks \|\| !buf->count)
112	{
113	// yes, take over matching buffer, print
114	buf->expire = pticks + pl->outputs_sync;
115	buf->count = pl->outputs_count;
116
117	return false;
118	}
119
120	// no, suppress
121	--buf->count;
122	return true;
123	}
124
125	if (lru->expire > buf->expire)
126	lru = buf;
127	}
128
129	// new message, evoke oldest buffer
130	lru->expire = pticks + pl->outputs_sync;
131	lru->count = pl->outputs_count;
132	lru->len = len;
133	memcpy (lru->msg, msg, len);
134
135	return false;
136	}
137
138	/**
139	* Sends message to player(s).
140	*
141	* flags is various flags - mostly color, plus a few specials.
142	*
143	* pri is priority. It is a little odd - the lower the value, the more
144	* important it is. Thus, 0 gets sent no matter what. Otherwise, the
145	* value must be less than the listening level that the player has set.
146	* Unfortunately, there is no clear guideline on what each level does what.
147	*
148	* pl can be passed as NULL - in fact, this will be done if NDI_ALL is set
149	* in the flags.
150	*
151	* If message is black, and not NDI_UNIQUE, gets sent through output buffers.
152	*
153	*/
154	void
155	new_draw_info (int flags, int pri, const object pl, const char buf)
156	{
157	if (flags & NDI_ALL)
158	{
159	for_all_players (pl)
160	new_draw_info (flags & ~NDI_ALL, pri, pl->ob, buf);
161
162	return;
163	}
164
165	if (!pl \|\| pl->type != PLAYER \|\| !pl->contr \|\| !pl->contr->ns)
166	return;
167
168	if (pri >= pl->contr->listening)
169	return;
170
171	if ((flags & (NDI_COLOR_MASK \| NDI_UNIQUE)) != NDI_BLACK
172	\|\| !pl->contr->ns->msg_suppressed (buf))
173	print_message (flags & NDI_COLOR_MASK, pl, buf);
174	}
175
176	/**
177	* Wrapper for new_draw_info printf-like.
178	*
179	* This is a pretty trivial function, but it allows us to use printf style
180	* formatting, so instead of the calling function having to do it, we do
181	* it here. It may also have advantages in the future for reduction of
182	* client/server bandwidth (client could keep track of various strings
183	*/
184	void
185	new_draw_info_format (int flags, int pri, const object pl, const char format, ...)
186	{
187	char buf[HUGE_BUF];
188
189	va_list ap;
190	va_start (ap, format);
191	vsnprintf (buf, HUGE_BUF, format, ap);
192	va_end (ap);
193
194	new_draw_info (flags, pri, pl, buf);
195	}
196
197	void
198	draw_ext_info (int flags, int pri, const object pl, uint8 type, uint8 subtype, const char message, const char *oldmessage)
199	{
200
201	if (!pl \|\| (pl->type != PLAYER) \|\| (pl->contr == NULL))
202	return;
203
204	if (pri >= pl->contr->listening)
205	return;
206
207	if (!CLIENT_SUPPORT_READABLES (pl->contr->ns, type))
208	{
209	char buf = (char ) malloc (strlen (oldmessage == NULL ? message : oldmessage) + 1);
210
211	if (buf == NULL)
212	LOG (llevError, "info::draw_ext_info -> Out of memory!");
213	else
214	{
215	strcpy (buf, oldmessage == NULL ? message : oldmessage);
216	strip_media_tag (buf);
217	new_draw_info (flags, pri, pl, buf);
218	free (buf);
219	}
220	}
221	else
222	esrv_print_ext_msg (pl->contr->ns, flags & NDI_COLOR_MASK, type, subtype, message);
223	}
224
225	void
226	draw_ext_info_format (int flags, int pri, const object pl, uint8 type, uint8 subtype, const char old_format, char *new_format, ...)
227	{
228	char buf[HUGE_BUF];
229
230	if (!pl \|\| (pl->type != PLAYER) \|\| (pl->contr == NULL))
231	return;
232
233	if (pri >= pl->contr->listening)
234	return;
235
236	if (!CLIENT_SUPPORT_READABLES (pl->contr->ns, type))
237	{
238	va_list ap;
239
240	LOG (llevDebug, "Non supported extension text type for client.\n");
241	va_start (ap, new_format);
242	vsnprintf (buf, HUGE_BUF, old_format, ap);
243	va_end (ap);
244	new_draw_info (flags, pri, pl, buf);
245	return;
246	}
247	else
248	{
249	va_list ap;
250
251	va_start (ap, new_format);
252	vsnprintf (buf, HUGE_BUF, new_format, ap);
253	va_end (ap);
254	strip_media_tag (buf);
255	esrv_print_ext_msg (pl->contr->ns, flags & NDI_COLOR_MASK, type, subtype, buf);
256	}
257	}
258
259	/**
260	* Writes to everyone on the map except op. This is useful for emotions.
261	*/
262
263	void
264	new_info_map_except (int color, maptile * map, object op, const char str)
265	{
266	for_all_players (pl)
267	if (pl->ob != NULL && pl->ob->map == map && pl->ob != op)
268	new_draw_info (color, 0, pl->ob, str);
269	}
270
271	/**
272	* Writes to everyone on the map except op1 and op2
273	*/
274
275	void
276	new_info_map_except2 (int color, maptile * map, object op1, object op2, const char *str)
277	{
278	for_all_players (pl)
279	if (pl->ob != NULL && pl->ob->map == map && pl->ob != op1 && pl->ob != op2)
280	new_draw_info (color, 0, pl->ob, str);
281	}
282
283	/**
284	* Writes to everyone on the specified map
285	*/
286
287	void
288	new_info_map (int color, maptile * map, const char *str)
289	{
290	for_all_players (pl)
291	if (pl->ob != NULL && pl->ob->map == map)
292	new_draw_info (color, 0, pl->ob, str);
293	}
294
295	/**
296	* This does nothing now. However, in theory, we should probably send
297	* something to the client and let the client figure out how it might want
298	* to handle this
299	*/
300	void
301	clear_win_info (object *op)
302	{
303	}
304
305	/**
306	* Get player's current range attack in obuf.
307	*/
308	void
309	rangetostring (object pl, char obuf)
310	{
311	switch (pl->contr->shoottype)
312	{
313	case range_none:
314	strcpy (obuf, "Range: nothing");
315	break;
316
317	case range_bow:
318	{
319	object *op;
320
321	for (op = pl->inv; op; op = op->below)
322	if (op->type == BOW && QUERY_FLAG (op, FLAG_APPLIED))
323	break;
324
325	if (op == NULL)
326	break;
327
328	sprintf (obuf, "Range: %s (%s)", query_base_name (op, 0), op->race ? (const char *) op->race : "nothing");
329	}
330	break;
331
332	case range_magic:
333	if (settings.casting_time == TRUE)
334	{
335	if (pl->casting_time > -1)
336	{
337	if (pl->casting_time == 0)
338	sprintf (obuf, "Range: Holding spell (%s)", &pl->spell->name);
339	else
340	sprintf (obuf, "Range: Casting spell (%s)", &pl->spell->name);
341	}
342	else
343	sprintf (obuf, "Range: spell (%s)", &pl->contr->ranges[range_magic]->name);
344	}
345	else
346	sprintf (obuf, "Range: spell (%s)", &pl->contr->ranges[range_magic]->name);
347	break;
348
349	case range_misc:
350	sprintf (obuf, "Range: %s", pl->contr->ranges[range_misc] ? query_base_name (pl->contr->ranges[range_misc], 0) : "none");
351	break;
352
353	/* range_scroll is only used for controlling golems. If the
354	* the player does not have a golem, reset some things.
355	*/
356	case range_golem:
357	if (object *golem = pl->contr->ranges[range_golem])
358	sprintf (obuf, "Range: golem (%s)", &golem->name);
359	else
360	{
361	pl->contr->shoottype = range_none;
362	strcpy (obuf, "Range: nothing");
363	}
364	break;
365
366	case range_skill:
367	sprintf (obuf, "Skill: %s", pl->chosen_skill != NULL ? (const char *) pl->chosen_skill->name : "none");
368	break;
369
370	case range_builder:
371	sprintf (obuf, "Builder: %s", query_base_name (pl->contr->ranges[range_builder], 0));
372	break;
373
374	default:
375	strcpy (obuf, "Range: illegal");
376	}
377	}
378
379	/**
380	* Sets player title.
381	*/
382	void
383	set_title (object pl, char buf)
384	{
385	/* Eneq(@csd.uu.se): Let players define their own titles. */
386	if (pl->contr->own_title[0] == '\0')
387	sprintf (buf, "Player: %s the %s", (const char ) pl->name, (const char ) pl->contr->title);
388	else
389	sprintf (buf, "Player: %s %s", (const char ) pl->name, (const char ) pl->contr->own_title);
390	}
391
392	// formerly a macro, used only by magic map, so optimised it out
393	static inline faceidx
394	GET_MAP_FACE (maptile *m, int x, int y, int layer)
395	{
396	if (object *op = GET_MAP_FACE_OBJ (m, x, y, layer))
397	return op->face;
398	else
399	return 0;
400	}
401
402	/**
403	* Helper for magic map creation.
404	*
405	* Takes a player, the map_mark array and an x and y starting position.
406	* pl is the player.
407	* px, py are offsets from the player.
408	*
409	* This function examines all the adjacant spaces next to px, py.
410	* It updates the map_mark arrow with the color and high bits set
411	* for various code values.
412	*/
413	static void
414	magic_mapping_mark_recursive (object pl, char map_mark, int px, int py)
415	{
416	int x, y, dx, dy, mflags;
417	sint16 nx, ny;
418	maptile *mp;
419
420	for (dx = -1; dx <= 1; dx++)
421	{
422	for (dy = -1; dy <= 1; dy++)
423	{
424	x = px + dx;
425	y = py + dy;
426
427	if (FABS (x) >= MAGIC_MAP_HALF \|\| FABS (y) >= MAGIC_MAP_HALF)
428	continue;
429
430	mp = pl->map;
431	nx = pl->x + x;
432	ny = pl->y + y;
433
434	mflags = get_map_flags (pl->map, &mp, nx, ny, &nx, &ny);
435	if (mflags & P_OUT_OF_MAP)
436	continue;
437
438	if (map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] == 0)
439	{
440	int f = GET_MAP_FACE (mp, nx, ny, 0);
441	if (f == blank_face)
442	{
443	f = GET_MAP_FACE (mp, nx, ny, 1);
444	if (f == blank_face)
445	f = GET_MAP_FACE (mp, nx, ny, 2);
446	}
447
448	int magicmap = faces [f].magicmap;
449
450	/* Should probably have P_NO_MAGIC here also, but then shops don't
451	* work.
452	*/
453	if (mflags & P_BLOCKSVIEW)
454	map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] = FACE_WALL \| magicmap;
455	else
456	{
457	map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] = FACE_FLOOR \| magicmap;
458	magic_mapping_mark_recursive (pl, map_mark, x, y);
459	}
460	}
461	}
462	}
463	}
464
465	/**
466	* Creates magic map for player.
467	*
468	* Note: For improved magic mapping display, the space that blocks
469	* the view is now marked with value 2. Any dependencies of map_mark
470	* being nonzero have been changed to check for 1. Also, since
471	* map_mark is a char value, putting 2 in should cause no problems.
472	*
473	* This function examines the map the player is on, and determines what
474	* is visible. 2 is set for walls or objects that blocks view. 1
475	* is for open spaces. map_mark should already have been initialised
476	* to zero before this is called.
477	* strength is an initial strength*2 rectangular area that we automatically
478	* see in/penetrate through.
479	*/
480	void
481	magic_mapping_mark (object pl, char map_mark, int strength)
482	{
483	int x, y, mflags;
484	sint16 nx, ny;
485	maptile *mp;
486
487	for (x = -strength; x < strength; x++)
488	{
489	for (y = -strength; y < strength; y++)
490	{
491	mp = pl->map;
492	nx = pl->x + x;
493	ny = pl->y + y;
494
495	mflags = get_map_flags (pl->map, &mp, nx, ny, &nx, &ny);
496	if (mflags & P_OUT_OF_MAP)
497	continue;
498
499	int f = GET_MAP_FACE (mp, nx, ny, 0);
500	if (f == blank_face)
501	{
502	f = GET_MAP_FACE (mp, nx, ny, 1);
503	if (f == blank_face)
504	f = GET_MAP_FACE (mp, nx, ny, 2);
505	}
506
507	int magicmap = faces [f].magicmap;
508
509	if (mflags & P_BLOCKSVIEW)
510	map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] = FACE_WALL \| magicmap;
511	else
512	{
513	map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] = FACE_FLOOR \| magicmap;
514	magic_mapping_mark_recursive (pl, map_mark, x, y);
515	}
516	}
517	}
518	}
519
520	/**
521	* Creates and sends magic map to player.
522	*
523	* The following function is a lot messier than it really should be,
524	* but there is no real easy solution.
525	*
526	* Mark Wedel
527	*/
528	void
529	draw_magic_map (object *pl)
530	{
531	char map_mark = (char )calloc (MAGIC_MAP_SIZE * MAGIC_MAP_SIZE, 1);
532	int xmin, xmax, ymin, ymax;
533
534	if (pl->type != PLAYER)
535	{
536	LOG (llevError, "Non player object called draw_map.\n");
537	return;
538	}
539
540	/* First, we figure out what spaces are 'reachable' by the player */
541	magic_mapping_mark (pl, map_mark, 3);
542
543	/* We now go through and figure out what spaces have been
544	* marked, and thus figure out rectangular region we send
545	* to the client (eg, if only a 10x10 area is visible, we only
546	* want to send those 100 spaces.)
547	*/
548	xmin = MAGIC_MAP_SIZE;
549	ymin = MAGIC_MAP_SIZE;
550	xmax = 0;
551	ymax = 0;
552
553	for (int x = 0; x < MAGIC_MAP_SIZE; x++)
554	for (int y = 0; y < MAGIC_MAP_SIZE; y++)
555	if (map_mark[x + pl->map->width * y] \| FACE_FLOOR)
556	{
557	xmin = x < xmin ? x : xmin;
558	xmax = x > xmax ? x : xmax;
559	ymin = y < ymin ? y : ymin;
560	ymax = y > ymax ? y : ymax;
561	}
562
563	packet sl;
564	sl.printf ("magicmap %d %d %d %d ", (xmax - xmin + 1), (ymax - ymin + 1),
565	MAGIC_MAP_HALF - xmin, MAGIC_MAP_HALF - ymin);
566
567	for (int y = ymin; y <= ymax; y++)
568	for (int x = xmin; x <= xmax; x++)
569	sl << uint8 (map_mark[x + MAGIC_MAP_SIZE * y] & ~FACE_FLOOR);
570
571	pl->contr->ns->send_packet (sl);
572
573	free (map_mark);
574	}
575
576	/**
577	* Send a kill log record to sockets
578	*/
579	void
580	Log_Kill (const char Who, const char What, int WhatType, const char *With, int WithType)
581	{
582	size_t len;
583	char buf[MAX_BUF];
584
585	if (With != NULL)
586	snprintf (buf, MAX_BUF, "%s\t%s\t%d\t%s\t%d\n", Who, What, WhatType, With, WithType);
587	else
588	snprintf (buf, MAX_BUF, "%s\t%s\t%d\n", Who, What, WhatType);
589
590	len = strlen (buf);
591	}
592