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.
#	User	Rev	Content
1	elmex	1.1	/*
2	pippijn	1.33	* 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	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			/**
42			* Draws a normal message on the client. It is pretty
43			* much the same thing as the draw_info above, but takes a color
44			* parameter. the esrv_drawinfo functions should probably be
45			* replaced with this, just using black as the color.
46			*/
47	root	1.5	static void
48	root	1.22	esrv_print_msg (client ns, int color, const char str)
49	elmex	1.1	{
50	root	1.21	ns->send_packet_printf ("drawinfo %d %s", color, str);
51	elmex	1.1	}
52
53			/**
54			* Draws an extended message on the client.
55			* ns the socket to send message to
56			* color color informations (used mainly if client does not support message type)
57			* type,
58			* subtype type and subtype of text message
59			* intro Intro message to send with main message if client does not support the message type
60			* message The main message
61			*/
62	root	1.5	static void
63	root	1.22	esrv_print_ext_msg (client ns, int color, uint8 type, uint8 subtype, const char message)
64	elmex	1.1	{
65	root	1.21	ns->send_packet_printf ("drawextinfo %d %hhu %hhu %s", color, type, subtype, message);
66	elmex	1.1	}
67
68			/**
69			* Frontend for esrv_print_msg
70			* \param colr message color
71			* \param pl player to send to. Can be NULL
72			* \param tmp message to send. Can be NULL
73			*
74			* If pl is NULL or without contr set, writes message to log.
75			*
76			* Else sends message to player via esrv_print_msg
77			*/
78	root	1.5	static void
79			print_message (int colr, const object pl, const char tmp)
80			{
81	root	1.11	if (!tmp)
82			tmp = "[NULL]";
83	elmex	1.1
84			if (!pl \|\| (pl->type == PLAYER && pl->contr == NULL))
85			return;
86
87	root	1.5	if (pl->type == PLAYER)
88	root	1.23	esrv_print_msg (pl->contr->ns, colr, (char *) tmp);
89	elmex	1.1	}
90
91	root	1.38	bool
92			client::msg_suppressed (const char *msg)
93	elmex	1.1	{
94	root	1.38	if (!pl)
95			return false;
96	elmex	1.1
97	root	1.38	if (pl->outputs_count <= 1 \|\| !pl->outputs_sync)
98			return false;
99	elmex	1.1
100	root	1.38	int len = strlen (msg);
101	elmex	1.1
102	root	1.38	if (len > MSG_BUF_SIZE)
103			return false;
104	elmex	1.1
105	root	1.38	msg_buf *lru = msgbuf;
106			for (msg_buf *buf = msgbuf; buf < msgbuf + MSG_BUF_COUNT; ++buf)
107	root	1.5	{
108	root	1.38	if (len == buf->len && !memcmp (msg, buf->msg, len))
109	root	1.5	{
110	root	1.38	// found matching buf, see if expired
111			if (buf->expire <= pticks \|\| !buf->count)
112	root	1.5	{
113	root	1.38	// yes, take over matching buffer, print
114			buf->expire = pticks + pl->outputs_sync;
115			buf->count = pl->outputs_count;
116
117			return false;
118	root	1.2	}
119	root	1.38
120			// no, suppress
121			--buf->count;
122			return true;
123	root	1.2	}
124	root	1.5
125	root	1.38	if (lru->expire > buf->expire)
126			lru = buf;
127	elmex	1.1	}
128	root	1.38
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	elmex	1.1	}
137	root	1.5
138	elmex	1.1	/**
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	root	1.5	void
155			new_draw_info (int flags, int pri, const object pl, const char buf)
156	elmex	1.1	{
157	root	1.5	if (flags & NDI_ALL)
158			{
159	root	1.27	for_all_players (pl)
160			new_draw_info (flags & ~NDI_ALL, pri, pl->ob, buf);
161	elmex	1.1
162	root	1.5	return;
163	elmex	1.1	}
164	root	1.11
165	root	1.28	if (!pl \|\| pl->type != PLAYER \|\| !pl->contr \|\| !pl->contr->ns)
166	root	1.5	return;
167	root	1.11
168	root	1.5	if (pri >= pl->contr->listening)
169			return;
170
171	root	1.38	if ((flags & (NDI_COLOR_MASK \| NDI_UNIQUE)) != NDI_BLACK
172			\|\| !pl->contr->ns->msg_suppressed (buf))
173	root	1.11	print_message (flags & NDI_COLOR_MASK, pl, buf);
174	elmex	1.1	}
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	root	1.5	void
185			new_draw_info_format (int flags, int pri, const object pl, const char format, ...)
186	elmex	1.1	{
187	root	1.5	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	elmex	1.1
194	root	1.5	new_draw_info (flags, pri, pl, buf);
195	elmex	1.1	}
196
197	root	1.5	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	root	1.17
207	root	1.23	if (!CLIENT_SUPPORT_READABLES (pl->contr->ns, type))
208	root	1.5	{
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	elmex	1.1	}
220	root	1.5	}
221			else
222	root	1.23	esrv_print_ext_msg (pl->contr->ns, flags & NDI_COLOR_MASK, type, subtype, message);
223	elmex	1.1	}
224
225	root	1.5	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	root	1.17
236	root	1.23	if (!CLIENT_SUPPORT_READABLES (pl->contr->ns, type))
237	root	1.5	{
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	root	1.23	esrv_print_ext_msg (pl->contr->ns, flags & NDI_COLOR_MASK, type, subtype, buf);
256	elmex	1.1	}
257			}
258	root	1.5
259	elmex	1.1	/**
260			* Writes to everyone on the map except op. This is useful for emotions.
261			*/
262
263	root	1.5	void
264	root	1.8	new_info_map_except (int color, maptile * map, object op, const char str)
265	root	1.5	{
266	root	1.24	for_all_players (pl)
267	root	1.5	if (pl->ob != NULL && pl->ob->map == map && pl->ob != op)
268	root	1.31	new_draw_info (color, 0, pl->ob, str);
269	elmex	1.1	}
270
271			/**
272			* Writes to everyone on the map except op1 and op2
273			*/
274
275	root	1.5	void
276	root	1.8	new_info_map_except2 (int color, maptile * map, object op1, object op2, const char *str)
277	root	1.5	{
278	root	1.24	for_all_players (pl)
279	root	1.5	if (pl->ob != NULL && pl->ob->map == map && pl->ob != op1 && pl->ob != op2)
280	root	1.31	new_draw_info (color, 0, pl->ob, str);
281	elmex	1.1	}
282
283			/**
284			* Writes to everyone on the specified map
285			*/
286
287	root	1.5	void
288	root	1.8	new_info_map (int color, maptile * map, const char *str)
289	root	1.5	{
290	root	1.24	for_all_players (pl)
291	root	1.5	if (pl->ob != NULL && pl->ob->map == map)
292	root	1.31	new_draw_info (color, 0, pl->ob, str);
293	elmex	1.1	}
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	root	1.5	void
301			clear_win_info (object *op)
302	elmex	1.1	{
303			}
304
305			/**
306			* Get player's current range attack in obuf.
307			*/
308	root	1.5	void
309			rangetostring (object pl, char obuf)
310	elmex	1.1	{
311	root	1.5	switch (pl->contr->shoottype)
312			{
313	root	1.8	case range_none:
314			strcpy (obuf, "Range: nothing");
315			break;
316	root	1.2
317	root	1.8	case range_bow:
318			{
319			object *op;
320	root	1.2
321	root	1.8	for (op = pl->inv; op; op = op->below)
322			if (op->type == BOW && QUERY_FLAG (op, FLAG_APPLIED))
323	root	1.5	break;
324	root	1.10
325	root	1.8	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	root	1.5
332	root	1.8	case range_magic:
333			if (settings.casting_time == TRUE)
334			{
335			if (pl->casting_time > -1)
336			{
337			if (pl->casting_time == 0)
338	root	1.9	sprintf (obuf, "Range: Holding spell (%s)", &pl->spell->name);
339	root	1.8	else
340	root	1.9	sprintf (obuf, "Range: Casting spell (%s)", &pl->spell->name);
341	root	1.8	}
342			else
343			sprintf (obuf, "Range: spell (%s)", &pl->contr->ranges[range_magic]->name);
344	root	1.5	}
345	root	1.8	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	root	1.37	if (object *golem = pl->contr->ranges[range_golem])
358			sprintf (obuf, "Range: golem (%s)", &golem->name);
359	root	1.8	else
360			{
361			pl->contr->shoottype = range_none;
362			strcpy (obuf, "Range: nothing");
363			}
364			break;
365	root	1.2
366	root	1.8	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	elmex	1.1
374	root	1.8	default:
375			strcpy (obuf, "Range: illegal");
376	elmex	1.1	}
377			}
378
379			/**
380			* Sets player title.
381			*/
382	root	1.5	void
383			set_title (object pl, char buf)
384	elmex	1.1	{
385	root	1.5	/* 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	elmex	1.1	}
391
392	root	1.36	// 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	elmex	1.1	/**
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	root	1.5	static void
414			magic_mapping_mark_recursive (object pl, char map_mark, int px, int py)
415	elmex	1.1	{
416	root	1.5	int x, y, dx, dy, mflags;
417			sint16 nx, ny;
418	root	1.7	maptile *mp;
419	root	1.5
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	root	1.35	int f = GET_MAP_FACE (mp, nx, ny, 0);
441	root	1.5	if (f == blank_face)
442	root	1.35	{
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	root	1.5
450			/* Should probably have P_NO_MAGIC here also, but then shops don't
451			* work.
452			*/
453			if (mflags & P_BLOCKSVIEW)
454	root	1.35	map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] = FACE_WALL \| magicmap;
455	root	1.5	else
456			{
457	root	1.35	map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] = FACE_FLOOR \| magicmap;
458	root	1.5	magic_mapping_mark_recursive (pl, map_mark, x, y);
459	root	1.2	}
460			}
461			}
462	elmex	1.1	}
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	pippijn	1.29	* is for open spaces. map_mark should already have been initialised
476	elmex	1.1	* 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	root	1.5	void
481			magic_mapping_mark (object pl, char map_mark, int strength)
482	elmex	1.1	{
483	root	1.5	int x, y, mflags;
484			sint16 nx, ny;
485	root	1.7	maptile *mp;
486	root	1.5
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	root	1.35
495	root	1.5	mflags = get_map_flags (pl->map, &mp, nx, ny, &nx, &ny);
496			if (mflags & P_OUT_OF_MAP)
497			continue;
498	root	1.35
499			int f = GET_MAP_FACE (mp, nx, ny, 0);
500			if (f == blank_face)
501	root	1.5	{
502	root	1.35	f = GET_MAP_FACE (mp, nx, ny, 1);
503	root	1.5	if (f == blank_face)
504			f = GET_MAP_FACE (mp, nx, ny, 2);
505	root	1.2	}
506
507	root	1.35	int magicmap = faces [f].magicmap;
508
509	root	1.5	if (mflags & P_BLOCKSVIEW)
510	root	1.35	map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] = FACE_WALL \| magicmap;
511	root	1.5	else
512			{
513	root	1.35	map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] = FACE_FLOOR \| magicmap;
514	root	1.5	magic_mapping_mark_recursive (pl, map_mark, x, y);
515	root	1.2	}
516			}
517	elmex	1.1	}
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	root	1.5	void
529			draw_magic_map (object *pl)
530	elmex	1.1	{
531	root	1.13	char map_mark = (char )calloc (MAGIC_MAP_SIZE * MAGIC_MAP_SIZE, 1);
532	root	1.5	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	root	1.13
553			for (int x = 0; x < MAGIC_MAP_SIZE; x++)
554			for (int y = 0; y < MAGIC_MAP_SIZE; y++)
555	root	1.25	if (map_mark[x + pl->map->width * y] \| FACE_FLOOR)
556	root	1.5	{
557	root	1.13	xmin = x < xmin ? x : xmin;
558			xmax = x > xmax ? x : xmax;
559			ymin = y < ymin ? y : ymin;
560			ymax = y > ymax ? y : ymax;
561	root	1.2	}
562	elmex	1.1
563	root	1.15	packet sl;
564	root	1.13	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	root	1.23	pl->contr->ns->send_packet (sl);
572	root	1.5
573			free (map_mark);
574	elmex	1.1	}
575
576			/**
577			* Send a kill log record to sockets
578			*/
579	root	1.5	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	root	1.11	snprintf (buf, MAX_BUF, "%s\t%s\t%d\t%s\t%d\n", Who, What, WhatType, With, WithType);
587	root	1.5	else
588	root	1.11	snprintf (buf, MAX_BUF, "%s\t%s\t%d\n", Who, What, WhatType);
589
590	root	1.5	len = strlen (buf);
591	elmex	1.1	}
592	root	1.22