server/socket/info.C

/*
 * This file is part of Deliantra, the Roguelike Realtime MMORPG.
 * 
 * Copyright (©) 2005,2006,2007,2008,2009,2010,2011 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
 * Copyright (©) 2002 Mark Wedel & Crossfire Development Team
 * Copyright (©) 1992 Frank Tore Johansen
 * 
 * Deliantra is free software: you can redistribute it and/or modify it under
 * the terms of the Affero 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 Affero GNU General Public License
 * and 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);
}

/**
 * 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 <= server_tick || !buf->count)
            {
              // yes, take over matching buffer, print
              buf->expire = server_tick + 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 = server_tick + 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, ...)
{
  va_list ap;
  va_start (ap, format);
  new_draw_info (flags, pri, pl, vformat (format, ap));
  va_end (ap);
}

/**
 * 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 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 (mapspace &ms, int layer)
{
  if (object *op = ms.faces_obj [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)
{
  for (int dx = -1; dx <= 1; dx++)
    {
      for (int dy = -1; dy <= 1; dy++)
        {
          int x = px + dx;
          int y = py + dy;

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

          mapxy pos (pl);
          pos.move (x, y);

          if (!pos.normalise ())
            continue;

          mapspace &ms = pos.ms ();

          if (map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] == 0)
            {
              int mflags = ms.flags ();

              int f = GET_MAP_FACE (ms, 0);
              if (f == blank_face)
                {
                  f = GET_MAP_FACE (ms, 1);
                  if (f == blank_face)
                    f = GET_MAP_FACE (ms, 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.
 */
static void
magic_mapping_mark (object *pl, char *map_mark, int strength)
{
  for (int x = -strength; x < strength; x++)
    {
      for (int y = -strength; y < strength; y++)
        {
          mapxy pos (pl);
          pos.move (x, y);

          if (!pos.normalise ())
            continue;

          mapspace &ms = pos.ms ();

          int mflags = ms.flags ();

          int f = GET_MAP_FACE (ms, 0);
          if (f == blank_face)
            {
              f = GET_MAP_FACE (ms, 1);
              if (f == blank_face)
                f = GET_MAP_FACE (ms, 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:	1.62
Committed:	Wed May 4 19:04:46 2011 UTC (13 years ago) by root
Content type:	text/plain
Branch:	MAIN
Changes since 1.61:	+3 -3 lines
Log Message:	* empty log message *
#	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	1.61	* Copyright (©) 2005,2006,2007,2008,2009,2010,2011 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5	root	1.59	* Copyright (©) 2002 Mark Wedel & Crossfire Development Team
6			* Copyright (©) 1992 Frank Tore Johansen
7	pippijn	1.33	*
8	root	1.52	* Deliantra is free software: you can redistribute it and/or modify it under
9			* the terms of the Affero GNU General Public License as published by the
10			* Free Software Foundation, either version 3 of the License, or (at your
11			* 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	1.52	* You should have received a copy of the Affero GNU General Public License
19			* and the GNU General Public License along with this program. If not, see
20			* <http://www.gnu.org/licenses/>.
21	root	1.43	*
22	root	1.47	* The authors can be reached via e-mail to <support@deliantra.net>
23	pippijn	1.33	*/
24	elmex	1.1
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	root	1.45	#include <cstring>
42
43	elmex	1.1	/**
44			* Draws a normal message on the client. It is pretty
45			* much the same thing as the draw_info above, but takes a color
46			* parameter. the esrv_drawinfo functions should probably be
47			* replaced with this, just using black as the color.
48			*/
49	root	1.5	static void
50	root	1.22	esrv_print_msg (client ns, int color, const char str)
51	elmex	1.1	{
52	root	1.45	ns->send_msg (color, "info", str);
53	elmex	1.1	}
54
55			/**
56			* Frontend for esrv_print_msg
57			* \param colr message color
58			* \param pl player to send to. Can be NULL
59			* \param tmp message to send. Can be NULL
60			*
61			* If pl is NULL or without contr set, writes message to log.
62			*
63			* Else sends message to player via esrv_print_msg
64			*/
65	root	1.5	static void
66			print_message (int colr, const object pl, const char tmp)
67			{
68	root	1.11	if (!tmp)
69			tmp = "[NULL]";
70	elmex	1.1
71			if (!pl \|\| (pl->type == PLAYER && pl->contr == NULL))
72			return;
73
74	root	1.5	if (pl->type == PLAYER)
75	root	1.45	esrv_print_msg (pl->contr->ns, colr, (char *)tmp);
76	elmex	1.1	}
77
78	root	1.38	bool
79			client::msg_suppressed (const char *msg)
80	elmex	1.1	{
81	root	1.38	if (!pl)
82			return false;
83	elmex	1.1
84	root	1.38	if (pl->outputs_count <= 1 \|\| !pl->outputs_sync)
85			return false;
86	elmex	1.1
87	root	1.38	int len = strlen (msg);
88	elmex	1.1
89	root	1.38	if (len > MSG_BUF_SIZE)
90			return false;
91	elmex	1.1
92	root	1.38	msg_buf *lru = msgbuf;
93			for (msg_buf *buf = msgbuf; buf < msgbuf + MSG_BUF_COUNT; ++buf)
94	root	1.5	{
95	root	1.38	if (len == buf->len && !memcmp (msg, buf->msg, len))
96	root	1.5	{
97	root	1.38	// found matching buf, see if expired
98	root	1.62	if (buf->expire <= server_tick \|\| !buf->count)
99	root	1.5	{
100	root	1.38	// yes, take over matching buffer, print
101	root	1.62	buf->expire = server_tick + pl->outputs_sync;
102	root	1.38	buf->count = pl->outputs_count;
103
104			return false;
105	root	1.2	}
106	root	1.38
107			// no, suppress
108			--buf->count;
109			return true;
110	root	1.2	}
111	root	1.5
112	root	1.38	if (lru->expire > buf->expire)
113			lru = buf;
114	elmex	1.1	}
115	root	1.38
116			// new message, evoke oldest buffer
117	root	1.62	lru->expire = server_tick + pl->outputs_sync;
118	root	1.38	lru->count = pl->outputs_count;
119			lru->len = len;
120			memcpy (lru->msg, msg, len);
121
122			return false;
123	elmex	1.1	}
124	root	1.5
125	elmex	1.1	/**
126			* Sends message to player(s).
127			*
128			* flags is various flags - mostly color, plus a few specials.
129			*
130	root	1.51	* pri is unused.
131	elmex	1.1	*
132			* pl can be passed as NULL - in fact, this will be done if NDI_ALL is set
133			* in the flags.
134			*
135			* If message is black, and not NDI_UNIQUE, gets sent through output buffers.
136			*
137			*/
138	root	1.5	void
139	root	1.41	new_draw_info (int flags, int pri, const object op, const char buf)
140	elmex	1.1	{
141	root	1.5	if (flags & NDI_ALL)
142	root	1.42	{
143			for_all_players (pl)
144	root	1.51	new_draw_info (flags & ~NDI_ALL, 0, pl->ob, buf);
145	root	1.42	}
146	root	1.41	else
147	root	1.5	{
148	root	1.41	if (!op \|\| !op->contr \|\| !op->contr->ns)
149			return;
150
151			if ((flags & (NDI_COLOR_MASK \| NDI_UNIQUE)) != NDI_BLACK
152			\|\| !op->contr->ns->msg_suppressed (buf))
153			print_message (flags & NDI_COLOR_MASK, op, buf);
154	elmex	1.1	}
155			}
156
157			/**
158			* Wrapper for new_draw_info printf-like.
159			*
160			* This is a pretty trivial function, but it allows us to use printf style
161			* formatting, so instead of the calling function having to do it, we do
162			* it here. It may also have advantages in the future for reduction of
163			* client/server bandwidth (client could keep track of various strings
164			*/
165	root	1.5	void
166			new_draw_info_format (int flags, int pri, const object pl, const char format, ...)
167	elmex	1.1	{
168	root	1.5	va_list ap;
169			va_start (ap, format);
170	root	1.53	new_draw_info (flags, pri, pl, vformat (format, ap));
171	root	1.5	va_end (ap);
172	elmex	1.1	}
173
174			/**
175			* Writes to everyone on the map except op. This is useful for emotions.
176			*/
177	root	1.5	void
178	root	1.8	new_info_map_except (int color, maptile * map, object op, const char str)
179	root	1.5	{
180	root	1.24	for_all_players (pl)
181	root	1.49	if (pl->ob->map == map && pl->ob != op)
182	root	1.31	new_draw_info (color, 0, pl->ob, str);
183	elmex	1.1	}
184
185			/**
186			* Writes to everyone on the specified map
187			*/
188	root	1.5	void
189	root	1.8	new_info_map (int color, maptile * map, const char *str)
190	root	1.5	{
191	root	1.24	for_all_players (pl)
192	root	1.49	if (pl->ob->map == map)
193	root	1.31	new_draw_info (color, 0, pl->ob, str);
194	elmex	1.1	}
195
196			/**
197			* Sets player title.
198			*/
199	root	1.5	void
200			set_title (object pl, char buf)
201	elmex	1.1	{
202	root	1.5	/* Eneq(@csd.uu.se): Let players define their own titles. */
203			if (pl->contr->own_title[0] == '\0')
204			sprintf (buf, "Player: %s the %s", (const char ) pl->name, (const char ) pl->contr->title);
205			else
206			sprintf (buf, "Player: %s %s", (const char ) pl->name, (const char ) pl->contr->own_title);
207	elmex	1.1	}
208
209	root	1.36	// formerly a macro, used only by magic map, so optimised it out
210			static inline faceidx
211	root	1.54	GET_MAP_FACE (mapspace &ms, int layer)
212	root	1.36	{
213	root	1.54	if (object *op = ms.faces_obj [layer])
214	root	1.36	return op->face;
215			else
216			return 0;
217			}
218
219	elmex	1.1	/**
220			* Helper for magic map creation.
221			*
222			* Takes a player, the map_mark array and an x and y starting position.
223			* pl is the player.
224			* px, py are offsets from the player.
225			*
226			* This function examines all the adjacant spaces next to px, py.
227			* It updates the map_mark arrow with the color and high bits set
228			* for various code values.
229			*/
230	root	1.5	static void
231			magic_mapping_mark_recursive (object pl, char map_mark, int px, int py)
232	elmex	1.1	{
233	root	1.54	for (int dx = -1; dx <= 1; dx++)
234	root	1.5	{
235	root	1.54	for (int dy = -1; dy <= 1; dy++)
236	root	1.5	{
237	root	1.54	int x = px + dx;
238			int y = py + dy;
239	root	1.5
240	root	1.54	if (abs (x) >= MAGIC_MAP_HALF \|\| abs (y) >= MAGIC_MAP_HALF)
241	root	1.5	continue;
242
243	root	1.54	mapxy pos (pl);
244			pos.move (x, y);
245	root	1.5
246	root	1.54	if (!pos.normalise ())
247	root	1.5	continue;
248
249	root	1.54	mapspace &ms = pos.ms ();
250
251	root	1.5	if (map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] == 0)
252			{
253	root	1.54	int mflags = ms.flags ();
254
255			int f = GET_MAP_FACE (ms, 0);
256	root	1.5	if (f == blank_face)
257	root	1.35	{
258	root	1.54	f = GET_MAP_FACE (ms, 1);
259	root	1.35	if (f == blank_face)
260	root	1.54	f = GET_MAP_FACE (ms, 2);
261	root	1.35	}
262
263			int magicmap = faces [f].magicmap;
264	root	1.5
265			/* Should probably have P_NO_MAGIC here also, but then shops don't
266			* work.
267			*/
268			if (mflags & P_BLOCKSVIEW)
269	root	1.35	map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] = FACE_WALL \| magicmap;
270	root	1.5	else
271			{
272	root	1.35	map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] = FACE_FLOOR \| magicmap;
273	root	1.5	magic_mapping_mark_recursive (pl, map_mark, x, y);
274	root	1.2	}
275			}
276			}
277	elmex	1.1	}
278			}
279
280			/**
281			* Creates magic map for player.
282			*
283	root	1.54	* Note: For improved magic mapping display, the space that blocks
284			* the view is now marked with value 2. Any dependencies of map_mark
285			* being nonzero have been changed to check for 1. Also, since
286	elmex	1.1	* map_mark is a char value, putting 2 in should cause no problems.
287			*
288			* This function examines the map the player is on, and determines what
289	root	1.54	* is visible. 2 is set for walls or objects that blocks view. 1
290			* is for open spaces. map_mark should already have been initialised
291	elmex	1.1	* to zero before this is called.
292			* strength is an initial strength*2 rectangular area that we automatically
293			* see in/penetrate through.
294			*/
295	root	1.56	static void
296	root	1.5	magic_mapping_mark (object pl, char map_mark, int strength)
297	elmex	1.1	{
298	root	1.54	for (int x = -strength; x < strength; x++)
299	root	1.5	{
300	root	1.54	for (int y = -strength; y < strength; y++)
301	root	1.5	{
302	root	1.54	mapxy pos (pl);
303			pos.move (x, y);
304	root	1.35
305	root	1.54	if (!pos.normalise ())
306	root	1.5	continue;
307	root	1.35
308	root	1.54	mapspace &ms = pos.ms ();
309
310			int mflags = ms.flags ();
311
312			int f = GET_MAP_FACE (ms, 0);
313	root	1.35	if (f == blank_face)
314	root	1.5	{
315	root	1.54	f = GET_MAP_FACE (ms, 1);
316	root	1.5	if (f == blank_face)
317	root	1.54	f = GET_MAP_FACE (ms, 2);
318	root	1.2	}
319
320	root	1.35	int magicmap = faces [f].magicmap;
321
322	root	1.5	if (mflags & P_BLOCKSVIEW)
323	root	1.35	map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] = FACE_WALL \| magicmap;
324	root	1.5	else
325			{
326	root	1.35	map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] = FACE_FLOOR \| magicmap;
327	root	1.5	magic_mapping_mark_recursive (pl, map_mark, x, y);
328	root	1.2	}
329			}
330	elmex	1.1	}
331			}
332
333			/**
334			* Creates and sends magic map to player.
335			*
336			* The following function is a lot messier than it really should be,
337			* but there is no real easy solution.
338			*
339			* Mark Wedel
340			*/
341	root	1.5	void
342			draw_magic_map (object *pl)
343	elmex	1.1	{
344	root	1.13	char map_mark = (char )calloc (MAGIC_MAP_SIZE * MAGIC_MAP_SIZE, 1);
345	root	1.5	int xmin, xmax, ymin, ymax;
346
347			if (pl->type != PLAYER)
348			{
349			LOG (llevError, "Non player object called draw_map.\n");
350			return;
351			}
352
353			/* First, we figure out what spaces are 'reachable' by the player */
354			magic_mapping_mark (pl, map_mark, 3);
355
356			/* We now go through and figure out what spaces have been
357			* marked, and thus figure out rectangular region we send
358			* to the client (eg, if only a 10x10 area is visible, we only
359			* want to send those 100 spaces.)
360			*/
361			xmin = MAGIC_MAP_SIZE;
362			ymin = MAGIC_MAP_SIZE;
363			xmax = 0;
364			ymax = 0;
365	root	1.13
366			for (int x = 0; x < MAGIC_MAP_SIZE; x++)
367			for (int y = 0; y < MAGIC_MAP_SIZE; y++)
368	root	1.25	if (map_mark[x + pl->map->width * y] \| FACE_FLOOR)
369	root	1.5	{
370	root	1.13	xmin = x < xmin ? x : xmin;
371			xmax = x > xmax ? x : xmax;
372			ymin = y < ymin ? y : ymin;
373			ymax = y > ymax ? y : ymax;
374	root	1.2	}
375	elmex	1.1
376	root	1.15	packet sl;
377	root	1.13	sl.printf ("magicmap %d %d %d %d ", (xmax - xmin + 1), (ymax - ymin + 1),
378			MAGIC_MAP_HALF - xmin, MAGIC_MAP_HALF - ymin);
379
380			for (int y = ymin; y <= ymax; y++)
381			for (int x = xmin; x <= xmax; x++)
382			sl << uint8 (map_mark[x + MAGIC_MAP_SIZE * y] & ~FACE_FLOOR);
383
384	root	1.23	pl->contr->ns->send_packet (sl);
385	root	1.5
386			free (map_mark);
387	elmex	1.1	}
388