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 *op, const char *buf)
{
  if (flags & NDI_ALL)
    for_all_players (pl)
      new_draw_info (flags & ~NDI_ALL, pri, pl->ob, buf);
  else
    {
      if (!op || !op->contr || !op->contr->ns)
        return;

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

      if ((flags & (NDI_COLOR_MASK | NDI_UNIQUE)) != NDI_BLACK
          || !op->contr->ns->msg_suppressed (buf))
        print_message (flags & NDI_COLOR_MASK, op, 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)
{
}

/**
 * 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:	1.41
Committed:	Thu May 3 10:39:46 2007 UTC (17 years, 1 month ago) by root
Content type:	text/plain
Branch:	MAIN
Changes since 1.40:	+12 -14 lines
Log Message:	beta it slowly into shape
#	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 op, const char buf)
156	{
157	if (flags & NDI_ALL)
158	for_all_players (pl)
159	new_draw_info (flags & ~NDI_ALL, pri, pl->ob, buf);
160	else
161	{
162	if (!op \|\| !op->contr \|\| !op->contr->ns)
163	return;
164
165	if (pri >= op->contr->listening)
166	return;
167
168	if ((flags & (NDI_COLOR_MASK \| NDI_UNIQUE)) != NDI_BLACK
169	\|\| !op->contr->ns->msg_suppressed (buf))
170	print_message (flags & NDI_COLOR_MASK, op, buf);
171	}
172	}
173
174	/**
175	* Wrapper for new_draw_info printf-like.
176	*
177	* This is a pretty trivial function, but it allows us to use printf style
178	* formatting, so instead of the calling function having to do it, we do
179	* it here. It may also have advantages in the future for reduction of
180	* client/server bandwidth (client could keep track of various strings
181	*/
182	void
183	new_draw_info_format (int flags, int pri, const object pl, const char format, ...)
184	{
185	char buf[HUGE_BUF];
186
187	va_list ap;
188	va_start (ap, format);
189	vsnprintf (buf, HUGE_BUF, format, ap);
190	va_end (ap);
191
192	new_draw_info (flags, pri, pl, buf);
193	}
194
195	void
196	draw_ext_info (int flags, int pri, const object pl, uint8 type, uint8 subtype, const char message, const char *oldmessage)
197	{
198
199	if (!pl \|\| (pl->type != PLAYER) \|\| (pl->contr == NULL))
200	return;
201
202	if (pri >= pl->contr->listening)
203	return;
204
205	if (!CLIENT_SUPPORT_READABLES (pl->contr->ns, type))
206	{
207	char buf = (char ) malloc (strlen (oldmessage == NULL ? message : oldmessage) + 1);
208
209	if (buf == NULL)
210	LOG (llevError, "info::draw_ext_info -> Out of memory!");
211	else
212	{
213	strcpy (buf, oldmessage == NULL ? message : oldmessage);
214	strip_media_tag (buf);
215	new_draw_info (flags, pri, pl, buf);
216	free (buf);
217	}
218	}
219	else
220	esrv_print_ext_msg (pl->contr->ns, flags & NDI_COLOR_MASK, type, subtype, message);
221	}
222
223	void
224	draw_ext_info_format (int flags, int pri, const object pl, uint8 type, uint8 subtype, const char old_format, char *new_format, ...)
225	{
226	char buf[HUGE_BUF];
227
228	if (!pl \|\| (pl->type != PLAYER) \|\| (pl->contr == NULL))
229	return;
230
231	if (pri >= pl->contr->listening)
232	return;
233
234	if (!CLIENT_SUPPORT_READABLES (pl->contr->ns, type))
235	{
236	va_list ap;
237
238	LOG (llevDebug, "Non supported extension text type for client.\n");
239	va_start (ap, new_format);
240	vsnprintf (buf, HUGE_BUF, old_format, ap);
241	va_end (ap);
242	new_draw_info (flags, pri, pl, buf);
243	return;
244	}
245	else
246	{
247	va_list ap;
248
249	va_start (ap, new_format);
250	vsnprintf (buf, HUGE_BUF, new_format, ap);
251	va_end (ap);
252	strip_media_tag (buf);
253	esrv_print_ext_msg (pl->contr->ns, flags & NDI_COLOR_MASK, type, subtype, buf);
254	}
255	}
256
257	/**
258	* Writes to everyone on the map except op. This is useful for emotions.
259	*/
260
261	void
262	new_info_map_except (int color, maptile * map, object op, const char str)
263	{
264	for_all_players (pl)
265	if (pl->ob != NULL && pl->ob->map == map && pl->ob != op)
266	new_draw_info (color, 0, pl->ob, str);
267	}
268
269	/**
270	* Writes to everyone on the map except op1 and op2
271	*/
272
273	void
274	new_info_map_except2 (int color, maptile * map, object op1, object op2, const char *str)
275	{
276	for_all_players (pl)
277	if (pl->ob != NULL && pl->ob->map == map && pl->ob != op1 && pl->ob != op2)
278	new_draw_info (color, 0, pl->ob, str);
279	}
280
281	/**
282	* Writes to everyone on the specified map
283	*/
284
285	void
286	new_info_map (int color, maptile * map, const char *str)
287	{
288	for_all_players (pl)
289	if (pl->ob != NULL && pl->ob->map == map)
290	new_draw_info (color, 0, pl->ob, str);
291	}
292
293	/**
294	* This does nothing now. However, in theory, we should probably send
295	* something to the client and let the client figure out how it might want
296	* to handle this
297	*/
298	void
299	clear_win_info (object *op)
300	{
301	}
302
303	/**
304	* Sets player title.
305	*/
306	void
307	set_title (object pl, char buf)
308	{
309	/* Eneq(@csd.uu.se): Let players define their own titles. */
310	if (pl->contr->own_title[0] == '\0')
311	sprintf (buf, "Player: %s the %s", (const char ) pl->name, (const char ) pl->contr->title);
312	else
313	sprintf (buf, "Player: %s %s", (const char ) pl->name, (const char ) pl->contr->own_title);
314	}
315
316	// formerly a macro, used only by magic map, so optimised it out
317	static inline faceidx
318	GET_MAP_FACE (maptile *m, int x, int y, int layer)
319	{
320	if (object *op = GET_MAP_FACE_OBJ (m, x, y, layer))
321	return op->face;
322	else
323	return 0;
324	}
325
326	/**
327	* Helper for magic map creation.
328	*
329	* Takes a player, the map_mark array and an x and y starting position.
330	* pl is the player.
331	* px, py are offsets from the player.
332	*
333	* This function examines all the adjacant spaces next to px, py.
334	* It updates the map_mark arrow with the color and high bits set
335	* for various code values.
336	*/
337	static void
338	magic_mapping_mark_recursive (object pl, char map_mark, int px, int py)
339	{
340	int x, y, dx, dy, mflags;
341	sint16 nx, ny;
342	maptile *mp;
343
344	for (dx = -1; dx <= 1; dx++)
345	{
346	for (dy = -1; dy <= 1; dy++)
347	{
348	x = px + dx;
349	y = py + dy;
350
351	if (FABS (x) >= MAGIC_MAP_HALF \|\| FABS (y) >= MAGIC_MAP_HALF)
352	continue;
353
354	mp = pl->map;
355	nx = pl->x + x;
356	ny = pl->y + y;
357
358	mflags = get_map_flags (pl->map, &mp, nx, ny, &nx, &ny);
359	if (mflags & P_OUT_OF_MAP)
360	continue;
361
362	if (map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] == 0)
363	{
364	int f = GET_MAP_FACE (mp, nx, ny, 0);
365	if (f == blank_face)
366	{
367	f = GET_MAP_FACE (mp, nx, ny, 1);
368	if (f == blank_face)
369	f = GET_MAP_FACE (mp, nx, ny, 2);
370	}
371
372	int magicmap = faces [f].magicmap;
373
374	/* Should probably have P_NO_MAGIC here also, but then shops don't
375	* work.
376	*/
377	if (mflags & P_BLOCKSVIEW)
378	map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] = FACE_WALL \| magicmap;
379	else
380	{
381	map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] = FACE_FLOOR \| magicmap;
382	magic_mapping_mark_recursive (pl, map_mark, x, y);
383	}
384	}
385	}
386	}
387	}
388
389	/**
390	* Creates magic map for player.
391	*
392	* Note: For improved magic mapping display, the space that blocks
393	* the view is now marked with value 2. Any dependencies of map_mark
394	* being nonzero have been changed to check for 1. Also, since
395	* map_mark is a char value, putting 2 in should cause no problems.
396	*
397	* This function examines the map the player is on, and determines what
398	* is visible. 2 is set for walls or objects that blocks view. 1
399	* is for open spaces. map_mark should already have been initialised
400	* to zero before this is called.
401	* strength is an initial strength*2 rectangular area that we automatically
402	* see in/penetrate through.
403	*/
404	void
405	magic_mapping_mark (object pl, char map_mark, int strength)
406	{
407	int x, y, mflags;
408	sint16 nx, ny;
409	maptile *mp;
410
411	for (x = -strength; x < strength; x++)
412	{
413	for (y = -strength; y < strength; y++)
414	{
415	mp = pl->map;
416	nx = pl->x + x;
417	ny = pl->y + y;
418
419	mflags = get_map_flags (pl->map, &mp, nx, ny, &nx, &ny);
420	if (mflags & P_OUT_OF_MAP)
421	continue;
422
423	int f = GET_MAP_FACE (mp, nx, ny, 0);
424	if (f == blank_face)
425	{
426	f = GET_MAP_FACE (mp, nx, ny, 1);
427	if (f == blank_face)
428	f = GET_MAP_FACE (mp, nx, ny, 2);
429	}
430
431	int magicmap = faces [f].magicmap;
432
433	if (mflags & P_BLOCKSVIEW)
434	map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] = FACE_WALL \| magicmap;
435	else
436	{
437	map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] = FACE_FLOOR \| magicmap;
438	magic_mapping_mark_recursive (pl, map_mark, x, y);
439	}
440	}
441	}
442	}
443
444	/**
445	* Creates and sends magic map to player.
446	*
447	* The following function is a lot messier than it really should be,
448	* but there is no real easy solution.
449	*
450	* Mark Wedel
451	*/
452	void
453	draw_magic_map (object *pl)
454	{
455	char map_mark = (char )calloc (MAGIC_MAP_SIZE * MAGIC_MAP_SIZE, 1);
456	int xmin, xmax, ymin, ymax;
457
458	if (pl->type != PLAYER)
459	{
460	LOG (llevError, "Non player object called draw_map.\n");
461	return;
462	}
463
464	/* First, we figure out what spaces are 'reachable' by the player */
465	magic_mapping_mark (pl, map_mark, 3);
466
467	/* We now go through and figure out what spaces have been
468	* marked, and thus figure out rectangular region we send
469	* to the client (eg, if only a 10x10 area is visible, we only
470	* want to send those 100 spaces.)
471	*/
472	xmin = MAGIC_MAP_SIZE;
473	ymin = MAGIC_MAP_SIZE;
474	xmax = 0;
475	ymax = 0;
476
477	for (int x = 0; x < MAGIC_MAP_SIZE; x++)
478	for (int y = 0; y < MAGIC_MAP_SIZE; y++)
479	if (map_mark[x + pl->map->width * y] \| FACE_FLOOR)
480	{
481	xmin = x < xmin ? x : xmin;
482	xmax = x > xmax ? x : xmax;
483	ymin = y < ymin ? y : ymin;
484	ymax = y > ymax ? y : ymax;
485	}
486
487	packet sl;
488	sl.printf ("magicmap %d %d %d %d ", (xmax - xmin + 1), (ymax - ymin + 1),
489	MAGIC_MAP_HALF - xmin, MAGIC_MAP_HALF - ymin);
490
491	for (int y = ymin; y <= ymax; y++)
492	for (int x = xmin; x <= xmax; x++)
493	sl << uint8 (map_mark[x + MAGIC_MAP_SIZE * y] & ~FACE_FLOOR);
494
495	pl->contr->ns->send_packet (sl);
496
497	free (map_mark);
498	}
499
500	/**
501	* Send a kill log record to sockets
502	*/
503	void
504	Log_Kill (const char Who, const char What, int WhatType, const char *With, int WithType)
505	{
506	size_t len;
507	char buf[MAX_BUF];
508
509	if (With != NULL)
510	snprintf (buf, MAX_BUF, "%s\t%s\t%d\t%s\t%d\n", Who, What, WhatType, With, WithType);
511	else
512	snprintf (buf, MAX_BUF, "%s\t%s\t%d\n", Who, What, WhatType);
513
514	len = strlen (buf);
515	}
516