server/socket/info.C

/*
 * This file is part of Deliantra, the Roguelike Realtime MMORPG.
 * 
 * Copyright (©) 2005,2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
 * Copyright (©) 2002,2007 Mark Wedel & Crossfire Development Team
 * Copyright (©) 1992,2007 Frank Tore Johansen
 * 
 * Deliantra 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 3 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, see <http://www.gnu.org/licenses/>.
 * 
 * The authors can be reached via e-mail to <support@deliantra.net>
 */

/**
 * \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>

#include <cstring>

/**
 * 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_msg (color, "info", 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 %u %u %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 unused.
 *
 * 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, 0, pl->ob, buf);
    }
  else
    {
      if (!op || !op->contr || !op->contr->ns)
        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 (!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 (!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->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->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->map == map)
      new_draw_info (color, 0, pl->ob, str);
}

/**
 * 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);
}

Revision:	1.51
Committed:	Fri Aug 29 02:07:10 2008 UTC (15 years, 9 months ago) by root
Content type:	text/plain
Branch:	MAIN
CVS Tags:	rel-2_80, rel-2_7, rel-2_72, rel-2_73, rel-2_71, rel-2_76, rel-2_77, rel-2_74, rel-2_75, rel-2_79, rel-2_78
Changes since 1.50:	+2 -14 lines
Log Message:	remove listen(ing)?
#	User	Rev	Content
1	elmex	1.1	/*
2	root	1.47	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
3	pippijn	1.33	*
4	root	1.50	* Copyright (©) 2005,2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5	root	1.43	* Copyright (©) 2002,2007 Mark Wedel & Crossfire Development Team
6			* Copyright (©) 1992,2007 Frank Tore Johansen
7	pippijn	1.33	*
8	root	1.47	* Deliantra is free software: you can redistribute it and/or modify
9	root	1.46	* it under the terms of the GNU General Public License as published by
10			* the Free Software Foundation, either version 3 of the License, or
11			* (at your option) any later version.
12	pippijn	1.33	*
13	root	1.46	* 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	pippijn	1.33	*
18	root	1.46	* You should have received a copy of the GNU General Public License
19			* along with this program. If not, see <http://www.gnu.org/licenses/>.
20	root	1.43	*
21	root	1.47	* The authors can be reached via e-mail to <support@deliantra.net>
22	pippijn	1.33	*/
23	elmex	1.1
24			/**
25			* \file
26			* Basic client output functions.
27			*
28			* \date 2003-12-02
29			*
30			* This file implements some of the simpler output functions to the
31			* client. Basically, things like sending text strings along
32			*/
33
34			#include <global.h>
35			#include <sproto.h>
36			#include <stdarg.h>
37			#include <spells.h>
38			#include <skills.h>
39
40	root	1.45	#include <cstring>
41
42	elmex	1.1	/**
43			* Draws a normal message on the client. It is pretty
44			* much the same thing as the draw_info above, but takes a color
45			* parameter. the esrv_drawinfo functions should probably be
46			* replaced with this, just using black as the color.
47			*/
48	root	1.5	static void
49	root	1.22	esrv_print_msg (client ns, int color, const char str)
50	elmex	1.1	{
51	root	1.45	ns->send_msg (color, "info", str);
52	elmex	1.1	}
53
54			/**
55			* Draws an extended message on the client.
56			* ns the socket to send message to
57			* color color informations (used mainly if client does not support message type)
58			* type,
59			* subtype type and subtype of text message
60			* intro Intro message to send with main message if client does not support the message type
61			* message The main message
62			*/
63	root	1.5	static void
64	root	1.22	esrv_print_ext_msg (client ns, int color, uint8 type, uint8 subtype, const char message)
65	elmex	1.1	{
66	root	1.45	ns->send_packet_printf ("drawextinfo %d %u %u %s", color, type, subtype, message);
67	elmex	1.1	}
68
69			/**
70			* Frontend for esrv_print_msg
71			* \param colr message color
72			* \param pl player to send to. Can be NULL
73			* \param tmp message to send. Can be NULL
74			*
75			* If pl is NULL or without contr set, writes message to log.
76			*
77			* Else sends message to player via esrv_print_msg
78			*/
79	root	1.5	static void
80			print_message (int colr, const object pl, const char tmp)
81			{
82	root	1.11	if (!tmp)
83			tmp = "[NULL]";
84	elmex	1.1
85			if (!pl \|\| (pl->type == PLAYER && pl->contr == NULL))
86			return;
87
88	root	1.5	if (pl->type == PLAYER)
89	root	1.45	esrv_print_msg (pl->contr->ns, colr, (char *)tmp);
90	elmex	1.1	}
91
92	root	1.38	bool
93			client::msg_suppressed (const char *msg)
94	elmex	1.1	{
95	root	1.38	if (!pl)
96			return false;
97	elmex	1.1
98	root	1.38	if (pl->outputs_count <= 1 \|\| !pl->outputs_sync)
99			return false;
100	elmex	1.1
101	root	1.38	int len = strlen (msg);
102	elmex	1.1
103	root	1.38	if (len > MSG_BUF_SIZE)
104			return false;
105	elmex	1.1
106	root	1.38	msg_buf *lru = msgbuf;
107			for (msg_buf *buf = msgbuf; buf < msgbuf + MSG_BUF_COUNT; ++buf)
108	root	1.5	{
109	root	1.38	if (len == buf->len && !memcmp (msg, buf->msg, len))
110	root	1.5	{
111	root	1.38	// found matching buf, see if expired
112			if (buf->expire <= pticks \|\| !buf->count)
113	root	1.5	{
114	root	1.38	// yes, take over matching buffer, print
115			buf->expire = pticks + pl->outputs_sync;
116			buf->count = pl->outputs_count;
117
118			return false;
119	root	1.2	}
120	root	1.38
121			// no, suppress
122			--buf->count;
123			return true;
124	root	1.2	}
125	root	1.5
126	root	1.38	if (lru->expire > buf->expire)
127			lru = buf;
128	elmex	1.1	}
129	root	1.38
130			// new message, evoke oldest buffer
131			lru->expire = pticks + pl->outputs_sync;
132			lru->count = pl->outputs_count;
133			lru->len = len;
134			memcpy (lru->msg, msg, len);
135
136			return false;
137	elmex	1.1	}
138	root	1.5
139	elmex	1.1	/**
140			* Sends message to player(s).
141			*
142			* flags is various flags - mostly color, plus a few specials.
143			*
144	root	1.51	* pri is unused.
145	elmex	1.1	*
146			* pl can be passed as NULL - in fact, this will be done if NDI_ALL is set
147			* in the flags.
148			*
149			* If message is black, and not NDI_UNIQUE, gets sent through output buffers.
150			*
151			*/
152	root	1.5	void
153	root	1.41	new_draw_info (int flags, int pri, const object op, const char buf)
154	elmex	1.1	{
155	root	1.5	if (flags & NDI_ALL)
156	root	1.42	{
157			for_all_players (pl)
158	root	1.51	new_draw_info (flags & ~NDI_ALL, 0, pl->ob, buf);
159	root	1.42	}
160	root	1.41	else
161	root	1.5	{
162	root	1.41	if (!op \|\| !op->contr \|\| !op->contr->ns)
163			return;
164
165			if ((flags & (NDI_COLOR_MASK \| NDI_UNIQUE)) != NDI_BLACK
166			\|\| !op->contr->ns->msg_suppressed (buf))
167			print_message (flags & NDI_COLOR_MASK, op, buf);
168	elmex	1.1	}
169			}
170
171			/**
172			* Wrapper for new_draw_info printf-like.
173			*
174			* This is a pretty trivial function, but it allows us to use printf style
175			* formatting, so instead of the calling function having to do it, we do
176			* it here. It may also have advantages in the future for reduction of
177			* client/server bandwidth (client could keep track of various strings
178			*/
179	root	1.5	void
180			new_draw_info_format (int flags, int pri, const object pl, const char format, ...)
181	elmex	1.1	{
182	root	1.5	char buf[HUGE_BUF];
183
184			va_list ap;
185			va_start (ap, format);
186			vsnprintf (buf, HUGE_BUF, format, ap);
187			va_end (ap);
188	elmex	1.1
189	root	1.5	new_draw_info (flags, pri, pl, buf);
190	elmex	1.1	}
191
192	root	1.5	void
193			draw_ext_info (int flags, int pri, const object pl, uint8 type, uint8 subtype, const char message, const char *oldmessage)
194			{
195
196			if (!pl \|\| (pl->type != PLAYER) \|\| (pl->contr == NULL))
197			return;
198
199	root	1.23	if (!CLIENT_SUPPORT_READABLES (pl->contr->ns, type))
200	root	1.5	{
201			char buf = (char ) malloc (strlen (oldmessage == NULL ? message : oldmessage) + 1);
202
203			if (buf == NULL)
204			LOG (llevError, "info::draw_ext_info -> Out of memory!");
205			else
206			{
207			strcpy (buf, oldmessage == NULL ? message : oldmessage);
208			strip_media_tag (buf);
209			new_draw_info (flags, pri, pl, buf);
210			free (buf);
211	elmex	1.1	}
212	root	1.5	}
213			else
214	root	1.23	esrv_print_ext_msg (pl->contr->ns, flags & NDI_COLOR_MASK, type, subtype, message);
215	elmex	1.1	}
216
217	root	1.5	void
218			draw_ext_info_format (int flags, int pri, const object pl, uint8 type, uint8 subtype, const char old_format, char *new_format, ...)
219			{
220			char buf[HUGE_BUF];
221
222			if (!pl \|\| (pl->type != PLAYER) \|\| (pl->contr == NULL))
223			return;
224
225	root	1.23	if (!CLIENT_SUPPORT_READABLES (pl->contr->ns, type))
226	root	1.5	{
227			va_list ap;
228
229			LOG (llevDebug, "Non supported extension text type for client.\n");
230			va_start (ap, new_format);
231			vsnprintf (buf, HUGE_BUF, old_format, ap);
232			va_end (ap);
233			new_draw_info (flags, pri, pl, buf);
234			return;
235			}
236			else
237			{
238			va_list ap;
239
240			va_start (ap, new_format);
241			vsnprintf (buf, HUGE_BUF, new_format, ap);
242			va_end (ap);
243			strip_media_tag (buf);
244	root	1.23	esrv_print_ext_msg (pl->contr->ns, flags & NDI_COLOR_MASK, type, subtype, buf);
245	elmex	1.1	}
246			}
247	root	1.5
248	elmex	1.1	/**
249			* Writes to everyone on the map except op. This is useful for emotions.
250			*/
251
252	root	1.5	void
253	root	1.8	new_info_map_except (int color, maptile * map, object op, const char str)
254	root	1.5	{
255	root	1.24	for_all_players (pl)
256	root	1.49	if (pl->ob->map == map && pl->ob != op)
257	root	1.31	new_draw_info (color, 0, pl->ob, str);
258	elmex	1.1	}
259
260			/**
261			* Writes to everyone on the map except op1 and op2
262			*/
263	root	1.5	void
264	root	1.8	new_info_map_except2 (int color, maptile * map, object op1, object op2, const char *str)
265	root	1.5	{
266	root	1.24	for_all_players (pl)
267	root	1.49	if (pl->ob->map == map && pl->ob != op1 && pl->ob != op2)
268	root	1.31	new_draw_info (color, 0, pl->ob, str);
269	elmex	1.1	}
270
271			/**
272			* Writes to everyone on the specified map
273			*/
274	root	1.5	void
275	root	1.8	new_info_map (int color, maptile * map, const char *str)
276	root	1.5	{
277	root	1.24	for_all_players (pl)
278	root	1.49	if (pl->ob->map == map)
279	root	1.31	new_draw_info (color, 0, pl->ob, str);
280	elmex	1.1	}
281
282			/**
283			* Sets player title.
284			*/
285	root	1.5	void
286			set_title (object pl, char buf)
287	elmex	1.1	{
288	root	1.5	/* Eneq(@csd.uu.se): Let players define their own titles. */
289			if (pl->contr->own_title[0] == '\0')
290			sprintf (buf, "Player: %s the %s", (const char ) pl->name, (const char ) pl->contr->title);
291			else
292			sprintf (buf, "Player: %s %s", (const char ) pl->name, (const char ) pl->contr->own_title);
293	elmex	1.1	}
294
295	root	1.36	// formerly a macro, used only by magic map, so optimised it out
296			static inline faceidx
297			GET_MAP_FACE (maptile *m, int x, int y, int layer)
298			{
299			if (object *op = GET_MAP_FACE_OBJ (m, x, y, layer))
300			return op->face;
301			else
302			return 0;
303			}
304
305	elmex	1.1	/**
306			* Helper for magic map creation.
307			*
308			* Takes a player, the map_mark array and an x and y starting position.
309			* pl is the player.
310			* px, py are offsets from the player.
311			*
312			* This function examines all the adjacant spaces next to px, py.
313			* It updates the map_mark arrow with the color and high bits set
314			* for various code values.
315			*/
316	root	1.5	static void
317			magic_mapping_mark_recursive (object pl, char map_mark, int px, int py)
318	elmex	1.1	{
319	root	1.5	int x, y, dx, dy, mflags;
320			sint16 nx, ny;
321	root	1.7	maptile *mp;
322	root	1.5
323			for (dx = -1; dx <= 1; dx++)
324			{
325			for (dy = -1; dy <= 1; dy++)
326			{
327			x = px + dx;
328			y = py + dy;
329
330			if (FABS (x) >= MAGIC_MAP_HALF \|\| FABS (y) >= MAGIC_MAP_HALF)
331			continue;
332
333			mp = pl->map;
334			nx = pl->x + x;
335			ny = pl->y + y;
336
337			mflags = get_map_flags (pl->map, &mp, nx, ny, &nx, &ny);
338			if (mflags & P_OUT_OF_MAP)
339			continue;
340
341			if (map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] == 0)
342			{
343	root	1.35	int f = GET_MAP_FACE (mp, nx, ny, 0);
344	root	1.5	if (f == blank_face)
345	root	1.35	{
346			f = GET_MAP_FACE (mp, nx, ny, 1);
347			if (f == blank_face)
348			f = GET_MAP_FACE (mp, nx, ny, 2);
349			}
350
351			int magicmap = faces [f].magicmap;
352	root	1.5
353			/* Should probably have P_NO_MAGIC here also, but then shops don't
354			* work.
355			*/
356			if (mflags & P_BLOCKSVIEW)
357	root	1.35	map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] = FACE_WALL \| magicmap;
358	root	1.5	else
359			{
360	root	1.35	map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] = FACE_FLOOR \| magicmap;
361	root	1.5	magic_mapping_mark_recursive (pl, map_mark, x, y);
362	root	1.2	}
363			}
364			}
365	elmex	1.1	}
366			}
367
368			/**
369			* Creates magic map for player.
370			*
371			* Note: For improved magic mapping display, the space that blocks
372			* the view is now marked with value 2. Any dependencies of map_mark
373			* being nonzero have been changed to check for 1. Also, since
374			* map_mark is a char value, putting 2 in should cause no problems.
375			*
376			* This function examines the map the player is on, and determines what
377			* is visible. 2 is set for walls or objects that blocks view. 1
378	pippijn	1.29	* is for open spaces. map_mark should already have been initialised
379	elmex	1.1	* to zero before this is called.
380			* strength is an initial strength*2 rectangular area that we automatically
381			* see in/penetrate through.
382			*/
383	root	1.5	void
384			magic_mapping_mark (object pl, char map_mark, int strength)
385	elmex	1.1	{
386	root	1.5	int x, y, mflags;
387			sint16 nx, ny;
388	root	1.7	maptile *mp;
389	root	1.5
390			for (x = -strength; x < strength; x++)
391			{
392			for (y = -strength; y < strength; y++)
393			{
394			mp = pl->map;
395			nx = pl->x + x;
396			ny = pl->y + y;
397	root	1.35
398	root	1.5	mflags = get_map_flags (pl->map, &mp, nx, ny, &nx, &ny);
399			if (mflags & P_OUT_OF_MAP)
400			continue;
401	root	1.35
402			int f = GET_MAP_FACE (mp, nx, ny, 0);
403			if (f == blank_face)
404	root	1.5	{
405	root	1.35	f = GET_MAP_FACE (mp, nx, ny, 1);
406	root	1.5	if (f == blank_face)
407			f = GET_MAP_FACE (mp, nx, ny, 2);
408	root	1.2	}
409
410	root	1.35	int magicmap = faces [f].magicmap;
411
412	root	1.5	if (mflags & P_BLOCKSVIEW)
413	root	1.35	map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] = FACE_WALL \| magicmap;
414	root	1.5	else
415			{
416	root	1.35	map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] = FACE_FLOOR \| magicmap;
417	root	1.5	magic_mapping_mark_recursive (pl, map_mark, x, y);
418	root	1.2	}
419			}
420	elmex	1.1	}
421			}
422
423			/**
424			* Creates and sends magic map to player.
425			*
426			* The following function is a lot messier than it really should be,
427			* but there is no real easy solution.
428			*
429			* Mark Wedel
430			*/
431	root	1.5	void
432			draw_magic_map (object *pl)
433	elmex	1.1	{
434	root	1.13	char map_mark = (char )calloc (MAGIC_MAP_SIZE * MAGIC_MAP_SIZE, 1);
435	root	1.5	int xmin, xmax, ymin, ymax;
436
437			if (pl->type != PLAYER)
438			{
439			LOG (llevError, "Non player object called draw_map.\n");
440			return;
441			}
442
443			/* First, we figure out what spaces are 'reachable' by the player */
444			magic_mapping_mark (pl, map_mark, 3);
445
446			/* We now go through and figure out what spaces have been
447			* marked, and thus figure out rectangular region we send
448			* to the client (eg, if only a 10x10 area is visible, we only
449			* want to send those 100 spaces.)
450			*/
451			xmin = MAGIC_MAP_SIZE;
452			ymin = MAGIC_MAP_SIZE;
453			xmax = 0;
454			ymax = 0;
455	root	1.13
456			for (int x = 0; x < MAGIC_MAP_SIZE; x++)
457			for (int y = 0; y < MAGIC_MAP_SIZE; y++)
458	root	1.25	if (map_mark[x + pl->map->width * y] \| FACE_FLOOR)
459	root	1.5	{
460	root	1.13	xmin = x < xmin ? x : xmin;
461			xmax = x > xmax ? x : xmax;
462			ymin = y < ymin ? y : ymin;
463			ymax = y > ymax ? y : ymax;
464	root	1.2	}
465	elmex	1.1
466	root	1.15	packet sl;
467	root	1.13	sl.printf ("magicmap %d %d %d %d ", (xmax - xmin + 1), (ymax - ymin + 1),
468			MAGIC_MAP_HALF - xmin, MAGIC_MAP_HALF - ymin);
469
470			for (int y = ymin; y <= ymax; y++)
471			for (int x = xmin; x <= xmax; x++)
472			sl << uint8 (map_mark[x + MAGIC_MAP_SIZE * y] & ~FACE_FLOOR);
473
474	root	1.23	pl->contr->ns->send_packet (sl);
475	root	1.5
476			free (map_mark);
477	elmex	1.1	}
478