server/socket/info.C


/*
    CrossFire, A Multiplayer game for X-windows

    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_socket * ns, int color, const char *str)
{
  packet sl;

  if (ns->status == Ns_Old)
    sl.printf ("%s\n", str);
  else
    sl.printf ("drawinfo %d %s", color, str);

  ns->send_packet (sl);
}

/**
 * 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_socket * ns, int color, uint8 type, uint8 subtype, const char *message)
{
  packet sl;

  sl.printf ("drawextinfo %d %hhu %hhu %s", color, type, subtype, message);
  ns->send_packet (sl);
}

/**
 * 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->socket, colr, (char *) tmp);
}

/**
 * Prints out the contents of specified buffer structures,
 * and clears the string.
 */

void
flush_output_element (const object *pl, Output_Buf * outputs)
{
  char tbuf[MAX_BUF];

  if (outputs->buf == NULL)
    return;
  if (outputs->count > 1)
    {
      snprintf (tbuf, MAX_BUF, "%d times %s", outputs->count, &outputs->buf);
      print_message (NDI_BLACK, pl, tbuf);
    }
  else
    print_message (NDI_BLACK, pl, &outputs->buf);

  outputs->buf = NULL;
  outputs->first_update = 0;    /* This way, it will be reused */
}

/**
 * Sends message to player through output buffers.
 * \param pl player to send message
 * \param buf message to send
 *
 * If player's output_count is 1, sends message directly.
 *
 * Else checks output buffers for specified message.
 *
 * If found, checks if message should be sent now.
 *
 * If message not already in buffers, flushes olders buffer,
 * and adds message to queue.
 */

static void
check_output_buffers (const object *pl, const char *buf)
{
  int i, oldest = 0;

  if (pl->contr->outputs_count < 2)
    {
      print_message (NDI_BLACK, pl, buf);
      return;
    }
  else
    {
      for (i = 0; i < NUM_OUTPUT_BUFS; i++)
        {
          if (pl->contr->outputs[i].buf && !strcmp (buf, pl->contr->outputs[i].buf))
            break;
          else if (pl->contr->outputs[i].first_update < pl->contr->outputs[oldest].first_update)
            oldest = i;
        }
      /* We found a match */
      if (i < NUM_OUTPUT_BUFS)
        {
          pl->contr->outputs[i].count++;
          if (pl->contr->outputs[i].count >= pl->contr->outputs_count)
            {
              flush_output_element (pl, &pl->contr->outputs[i]);
            }
        }
      /* No match - flush the oldest, and put the new one in */
      else
        {
          flush_output_element (pl, &pl->contr->outputs[oldest]);

          pl->contr->outputs[oldest].first_update = pticks;
          pl->contr->outputs[oldest].count = 1;
          pl->contr->outputs[oldest].buf = buf;
        }
    }
}


/**
 * 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)
    {
      player *tmppl;

      for (tmppl = first_player; tmppl != NULL; tmppl = tmppl->next)
        new_draw_info ((flags & ~NDI_ALL), pri, tmppl->ob, buf);

      return;
    }

  if (!pl || (pl->type == PLAYER && pl->contr == NULL))
    {
      /* Write to the socket? */
      print_message (0, NULL, buf);
      return;
    }

  if (pl->type != PLAYER)
    return;

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

  if ((flags & NDI_COLOR_MASK) == NDI_BLACK && !(flags & NDI_UNIQUE))
    /* following prints stuff out, as appropriate */
    check_output_buffers (pl, buf);
  else
    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->socket, 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->socket, 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->socket, 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->socket, 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)
{
  player *pl;

  for (pl = first_player; pl != NULL; pl = pl->next)
    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)
{
  player *pl;

  for (pl = first_player; pl != NULL; pl = pl->next)
    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)
{
  player *pl;

  for (pl = first_player; pl != NULL; pl = pl->next)
    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 (pl->contr->ranges[range_golem] != NULL)
          sprintf (obuf, "Range: golem (%s)", &pl->contr->ranges[range_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);
}


/**
 * 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;
  New_Face *f;

  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)
            {
              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);

              /* 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 | (f ? f->magicmap : 0);
              else
                {
                  map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] = FACE_FLOOR | (f ? f->magicmap : 0);
                  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 initialized
 * 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;
  New_Face *f;

  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;
          else
            {
              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);
            }

          if (mflags & P_BLOCKSVIEW)
            map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] = FACE_WALL | (f ? f->magicmap : 0);
          else
            {
              map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] = FACE_FLOOR | (f ? f->magicmap : 0);
              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 + MAP_WIDTH (pl->map) * 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);

  Send_With_Handling (pl->contr->socket, &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:	1.17
Committed:	Thu Dec 14 04:30:33 2006 UTC (17 years, 5 months ago) by root
Content type:	text/plain
Branch:	MAIN
Changes since 1.16:	+8 -12 lines
Log Message:	- rewrote most of the socket loop code - moved connection accept into tcp.ext - no evil socket copying anymore, needs more cleanups
#	Content
1
2	/*
3	CrossFire, A Multiplayer game for X-windows
4
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_socket * ns, int color, const char *str)
49	{
50	packet sl;
51
52	if (ns->status == Ns_Old)
53	sl.printf ("%s\n", str);
54	else
55	sl.printf ("drawinfo %d %s", color, str);
56
57	ns->send_packet (sl);
58	}
59
60	/**
61	* Draws an extended message on the client.
62	* ns the socket to send message to
63	* color color informations (used mainly if client does not support message type)
64	* type,
65	* subtype type and subtype of text message
66	* intro Intro message to send with main message if client does not support the message type
67	* message The main message
68	*/
69	static void
70	esrv_print_ext_msg (client_socket * ns, int color, uint8 type, uint8 subtype, const char *message)
71	{
72	packet sl;
73
74	sl.printf ("drawextinfo %d %hhu %hhu %s", color, type, subtype, message);
75	ns->send_packet (sl);
76	}
77
78	/**
79	* Frontend for esrv_print_msg
80	* \param colr message color
81	* \param pl player to send to. Can be NULL
82	* \param tmp message to send. Can be NULL
83	*
84	* If pl is NULL or without contr set, writes message to log.
85	*
86	* Else sends message to player via esrv_print_msg
87	*/
88
89	static void
90	print_message (int colr, const object pl, const char tmp)
91	{
92
93	if (!tmp)
94	tmp = "[NULL]";
95
96	if (!pl \|\| (pl->type == PLAYER && pl->contr == NULL))
97	return;
98
99	if (pl->type == PLAYER)
100	esrv_print_msg (pl->contr->socket, colr, (char *) tmp);
101	}
102
103	/**
104	* Prints out the contents of specified buffer structures,
105	* and clears the string.
106	*/
107
108	void
109	flush_output_element (const object pl, Output_Buf outputs)
110	{
111	char tbuf[MAX_BUF];
112
113	if (outputs->buf == NULL)
114	return;
115	if (outputs->count > 1)
116	{
117	snprintf (tbuf, MAX_BUF, "%d times %s", outputs->count, &outputs->buf);
118	print_message (NDI_BLACK, pl, tbuf);
119	}
120	else
121	print_message (NDI_BLACK, pl, &outputs->buf);
122
123	outputs->buf = NULL;
124	outputs->first_update = 0; /* This way, it will be reused */
125	}
126
127	/**
128	* Sends message to player through output buffers.
129	* \param pl player to send message
130	* \param buf message to send
131	*
132	* If player's output_count is 1, sends message directly.
133	*
134	* Else checks output buffers for specified message.
135	*
136	* If found, checks if message should be sent now.
137	*
138	* If message not already in buffers, flushes olders buffer,
139	* and adds message to queue.
140	*/
141
142	static void
143	check_output_buffers (const object pl, const char buf)
144	{
145	int i, oldest = 0;
146
147	if (pl->contr->outputs_count < 2)
148	{
149	print_message (NDI_BLACK, pl, buf);
150	return;
151	}
152	else
153	{
154	for (i = 0; i < NUM_OUTPUT_BUFS; i++)
155	{
156	if (pl->contr->outputs[i].buf && !strcmp (buf, pl->contr->outputs[i].buf))
157	break;
158	else if (pl->contr->outputs[i].first_update < pl->contr->outputs[oldest].first_update)
159	oldest = i;
160	}
161	/* We found a match */
162	if (i < NUM_OUTPUT_BUFS)
163	{
164	pl->contr->outputs[i].count++;
165	if (pl->contr->outputs[i].count >= pl->contr->outputs_count)
166	{
167	flush_output_element (pl, &pl->contr->outputs[i]);
168	}
169	}
170	/* No match - flush the oldest, and put the new one in */
171	else
172	{
173	flush_output_element (pl, &pl->contr->outputs[oldest]);
174
175	pl->contr->outputs[oldest].first_update = pticks;
176	pl->contr->outputs[oldest].count = 1;
177	pl->contr->outputs[oldest].buf = buf;
178	}
179	}
180	}
181
182
183
184	/**
185	* Sends message to player(s).
186	*
187	* flags is various flags - mostly color, plus a few specials.
188	*
189	* pri is priority. It is a little odd - the lower the value, the more
190	* important it is. Thus, 0 gets sent no matter what. Otherwise, the
191	* value must be less than the listening level that the player has set.
192	* Unfortunately, there is no clear guideline on what each level does what.
193	*
194	* pl can be passed as NULL - in fact, this will be done if NDI_ALL is set
195	* in the flags.
196	*
197	* If message is black, and not NDI_UNIQUE, gets sent through output buffers.
198	*
199	*/
200
201	void
202	new_draw_info (int flags, int pri, const object pl, const char buf)
203	{
204
205	if (flags & NDI_ALL)
206	{
207	player *tmppl;
208
209	for (tmppl = first_player; tmppl != NULL; tmppl = tmppl->next)
210	new_draw_info ((flags & ~NDI_ALL), pri, tmppl->ob, buf);
211
212	return;
213	}
214
215	if (!pl \|\| (pl->type == PLAYER && pl->contr == NULL))
216	{
217	/* Write to the socket? */
218	print_message (0, NULL, buf);
219	return;
220	}
221
222	if (pl->type != PLAYER)
223	return;
224
225	if (pri >= pl->contr->listening)
226	return;
227
228	if ((flags & NDI_COLOR_MASK) == NDI_BLACK && !(flags & NDI_UNIQUE))
229	/* following prints stuff out, as appropriate */
230	check_output_buffers (pl, buf);
231	else
232	print_message (flags & NDI_COLOR_MASK, pl, buf);
233	}
234
235	/**
236	* Wrapper for new_draw_info printf-like.
237	*
238	* This is a pretty trivial function, but it allows us to use printf style
239	* formatting, so instead of the calling function having to do it, we do
240	* it here. It may also have advantages in the future for reduction of
241	* client/server bandwidth (client could keep track of various strings
242	*/
243
244	void
245	new_draw_info_format (int flags, int pri, const object pl, const char format, ...)
246	{
247	char buf[HUGE_BUF];
248
249	va_list ap;
250
251	va_start (ap, format);
252
253	vsnprintf (buf, HUGE_BUF, format, ap);
254
255	va_end (ap);
256
257	new_draw_info (flags, pri, pl, buf);
258	}
259
260
261	void
262	draw_ext_info (int flags, int pri, const object pl, uint8 type, uint8 subtype, const char message, const char *oldmessage)
263	{
264
265	if (!pl \|\| (pl->type != PLAYER) \|\| (pl->contr == NULL))
266	return;
267
268	if (pri >= pl->contr->listening)
269	return;
270
271	if (!CLIENT_SUPPORT_READABLES (pl->contr->socket, type))
272	{
273	char buf = (char ) malloc (strlen (oldmessage == NULL ? message : oldmessage) + 1);
274
275	if (buf == NULL)
276	LOG (llevError, "info::draw_ext_info -> Out of memory!");
277	else
278	{
279	strcpy (buf, oldmessage == NULL ? message : oldmessage);
280	strip_media_tag (buf);
281	new_draw_info (flags, pri, pl, buf);
282	free (buf);
283	}
284	}
285	else
286	esrv_print_ext_msg (pl->contr->socket, flags & NDI_COLOR_MASK, type, subtype, message);
287	}
288
289	void
290	draw_ext_info_format (int flags, int pri, const object pl, uint8 type, uint8 subtype, const char old_format, char *new_format, ...)
291	{
292
293	char buf[HUGE_BUF];
294
295	if (!pl \|\| (pl->type != PLAYER) \|\| (pl->contr == NULL))
296	return;
297
298	if (pri >= pl->contr->listening)
299	return;
300
301	if (!CLIENT_SUPPORT_READABLES (pl->contr->socket, type))
302	{
303	va_list ap;
304
305	LOG (llevDebug, "Non supported extension text type for client.\n");
306	va_start (ap, new_format);
307	vsnprintf (buf, HUGE_BUF, old_format, ap);
308	va_end (ap);
309	new_draw_info (flags, pri, pl, buf);
310	return;
311	}
312	else
313	{
314	va_list ap;
315
316	va_start (ap, new_format);
317	vsnprintf (buf, HUGE_BUF, new_format, ap);
318	va_end (ap);
319	strip_media_tag (buf);
320	esrv_print_ext_msg (pl->contr->socket, flags & NDI_COLOR_MASK, type, subtype, buf);
321	}
322	}
323
324	/**
325	* Writes to everyone on the map except op. This is useful for emotions.
326	*/
327
328	void
329	new_info_map_except (int color, maptile * map, object op, const char str)
330	{
331	player *pl;
332
333	for (pl = first_player; pl != NULL; pl = pl->next)
334	if (pl->ob != NULL && pl->ob->map == map && pl->ob != op)
335	{
336	new_draw_info (color, 0, pl->ob, str);
337	}
338	}
339
340	/**
341	* Writes to everyone on the map except op1 and op2
342	*/
343
344	void
345	new_info_map_except2 (int color, maptile * map, object op1, object op2, const char *str)
346	{
347	player *pl;
348
349	for (pl = first_player; pl != NULL; pl = pl->next)
350	if (pl->ob != NULL && pl->ob->map == map && pl->ob != op1 && pl->ob != op2)
351	{
352	new_draw_info (color, 0, pl->ob, str);
353	}
354	}
355
356	/**
357	* Writes to everyone on the specified map
358	*/
359
360	void
361	new_info_map (int color, maptile * map, const char *str)
362	{
363	player *pl;
364
365	for (pl = first_player; pl != NULL; pl = pl->next)
366	if (pl->ob != NULL && pl->ob->map == map)
367	{
368	new_draw_info (color, 0, pl->ob, str);
369	}
370	}
371
372
373	/**
374	* This does nothing now. However, in theory, we should probably send
375	* something to the client and let the client figure out how it might want
376	* to handle this
377	*/
378	void
379	clear_win_info (object *op)
380	{
381	}
382
383	/**
384	* Get player's current range attack in obuf.
385	*/
386	void
387	rangetostring (object pl, char obuf)
388	{
389	switch (pl->contr->shoottype)
390	{
391	case range_none:
392	strcpy (obuf, "Range: nothing");
393	break;
394
395	case range_bow:
396	{
397	object *op;
398
399	for (op = pl->inv; op; op = op->below)
400	if (op->type == BOW && QUERY_FLAG (op, FLAG_APPLIED))
401	break;
402
403	if (op == NULL)
404	break;
405
406	sprintf (obuf, "Range: %s (%s)", query_base_name (op, 0), op->race ? (const char *) op->race : "nothing");
407	}
408	break;
409
410	case range_magic:
411	if (settings.casting_time == TRUE)
412	{
413	if (pl->casting_time > -1)
414	{
415	if (pl->casting_time == 0)
416	sprintf (obuf, "Range: Holding spell (%s)", &pl->spell->name);
417	else
418	sprintf (obuf, "Range: Casting spell (%s)", &pl->spell->name);
419	}
420	else
421	sprintf (obuf, "Range: spell (%s)", &pl->contr->ranges[range_magic]->name);
422	}
423	else
424	sprintf (obuf, "Range: spell (%s)", &pl->contr->ranges[range_magic]->name);
425	break;
426
427	case range_misc:
428	sprintf (obuf, "Range: %s", pl->contr->ranges[range_misc] ? query_base_name (pl->contr->ranges[range_misc], 0) : "none");
429	break;
430
431	/* range_scroll is only used for controlling golems. If the
432	* the player does not have a golem, reset some things.
433	*/
434	case range_golem:
435	if (pl->contr->ranges[range_golem] != NULL)
436	sprintf (obuf, "Range: golem (%s)", &pl->contr->ranges[range_golem]->name);
437	else
438	{
439	pl->contr->shoottype = range_none;
440	strcpy (obuf, "Range: nothing");
441	}
442	break;
443
444	case range_skill:
445	sprintf (obuf, "Skill: %s", pl->chosen_skill != NULL ? (const char *) pl->chosen_skill->name : "none");
446	break;
447
448	case range_builder:
449	sprintf (obuf, "Builder: %s", query_base_name (pl->contr->ranges[range_builder], 0));
450	break;
451
452	default:
453	strcpy (obuf, "Range: illegal");
454	}
455	}
456
457	/**
458	* Sets player title.
459	*/
460	void
461	set_title (object pl, char buf)
462	{
463	/* Eneq(@csd.uu.se): Let players define their own titles. */
464	if (pl->contr->own_title[0] == '\0')
465	sprintf (buf, "Player: %s the %s", (const char ) pl->name, (const char ) pl->contr->title);
466	else
467	sprintf (buf, "Player: %s %s", (const char ) pl->name, (const char ) pl->contr->own_title);
468	}
469
470
471	/**
472	* Helper for magic map creation.
473	*
474	* Takes a player, the map_mark array and an x and y starting position.
475	* pl is the player.
476	* px, py are offsets from the player.
477	*
478	* This function examines all the adjacant spaces next to px, py.
479	* It updates the map_mark arrow with the color and high bits set
480	* for various code values.
481	*/
482	static void
483	magic_mapping_mark_recursive (object pl, char map_mark, int px, int py)
484	{
485	int x, y, dx, dy, mflags;
486	sint16 nx, ny;
487	maptile *mp;
488	New_Face *f;
489
490	for (dx = -1; dx <= 1; dx++)
491	{
492	for (dy = -1; dy <= 1; dy++)
493	{
494	x = px + dx;
495	y = py + dy;
496
497	if (FABS (x) >= MAGIC_MAP_HALF \|\| FABS (y) >= MAGIC_MAP_HALF)
498	continue;
499
500	mp = pl->map;
501	nx = pl->x + x;
502	ny = pl->y + y;
503
504	mflags = get_map_flags (pl->map, &mp, nx, ny, &nx, &ny);
505	if (mflags & P_OUT_OF_MAP)
506	continue;
507
508	if (map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] == 0)
509	{
510	f = GET_MAP_FACE (mp, nx, ny, 0);
511	if (f == blank_face)
512	f = GET_MAP_FACE (mp, nx, ny, 1);
513	if (f == blank_face)
514	f = GET_MAP_FACE (mp, nx, ny, 2);
515
516	/* Should probably have P_NO_MAGIC here also, but then shops don't
517	* work.
518	*/
519	if (mflags & P_BLOCKSVIEW)
520	map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] = FACE_WALL \| (f ? f->magicmap : 0);
521	else
522	{
523	map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] = FACE_FLOOR \| (f ? f->magicmap : 0);
524	magic_mapping_mark_recursive (pl, map_mark, x, y);
525	}
526	}
527	}
528	}
529	}
530
531
532	/**
533	* Creates magic map for player.
534	*
535	* Note: For improved magic mapping display, the space that blocks
536	* the view is now marked with value 2. Any dependencies of map_mark
537	* being nonzero have been changed to check for 1. Also, since
538	* map_mark is a char value, putting 2 in should cause no problems.
539	*
540	* This function examines the map the player is on, and determines what
541	* is visible. 2 is set for walls or objects that blocks view. 1
542	* is for open spaces. map_mark should already have been initialized
543	* to zero before this is called.
544	* strength is an initial strength*2 rectangular area that we automatically
545	* see in/penetrate through.
546	*/
547
548	void
549	magic_mapping_mark (object pl, char map_mark, int strength)
550	{
551	int x, y, mflags;
552	sint16 nx, ny;
553	maptile *mp;
554	New_Face *f;
555
556	for (x = -strength; x < strength; x++)
557	{
558	for (y = -strength; y < strength; y++)
559	{
560	mp = pl->map;
561	nx = pl->x + x;
562	ny = pl->y + y;
563	mflags = get_map_flags (pl->map, &mp, nx, ny, &nx, &ny);
564	if (mflags & P_OUT_OF_MAP)
565	continue;
566	else
567	{
568	f = GET_MAP_FACE (mp, nx, ny, 0);
569	if (f == blank_face)
570	f = GET_MAP_FACE (mp, nx, ny, 1);
571	if (f == blank_face)
572	f = GET_MAP_FACE (mp, nx, ny, 2);
573	}
574
575	if (mflags & P_BLOCKSVIEW)
576	map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] = FACE_WALL \| (f ? f->magicmap : 0);
577	else
578	{
579	map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] = FACE_FLOOR \| (f ? f->magicmap : 0);
580	magic_mapping_mark_recursive (pl, map_mark, x, y);
581	}
582	}
583	}
584	}
585
586
587	/**
588	* Creates and sends magic map to player.
589	*
590	* The following function is a lot messier than it really should be,
591	* but there is no real easy solution.
592	*
593	* Mark Wedel
594	*/
595
596	void
597	draw_magic_map (object *pl)
598	{
599	char map_mark = (char )calloc (MAGIC_MAP_SIZE * MAGIC_MAP_SIZE, 1);
600	int xmin, xmax, ymin, ymax;
601
602	if (pl->type != PLAYER)
603	{
604	LOG (llevError, "Non player object called draw_map.\n");
605	return;
606	}
607
608	/* First, we figure out what spaces are 'reachable' by the player */
609	magic_mapping_mark (pl, map_mark, 3);
610
611	/* We now go through and figure out what spaces have been
612	* marked, and thus figure out rectangular region we send
613	* to the client (eg, if only a 10x10 area is visible, we only
614	* want to send those 100 spaces.)
615	*/
616	xmin = MAGIC_MAP_SIZE;
617	ymin = MAGIC_MAP_SIZE;
618	xmax = 0;
619	ymax = 0;
620
621	for (int x = 0; x < MAGIC_MAP_SIZE; x++)
622	for (int y = 0; y < MAGIC_MAP_SIZE; y++)
623	if (map_mark[x + MAP_WIDTH (pl->map) * y] \| FACE_FLOOR)
624	{
625	xmin = x < xmin ? x : xmin;
626	xmax = x > xmax ? x : xmax;
627	ymin = y < ymin ? y : ymin;
628	ymax = y > ymax ? y : ymax;
629	}
630
631	packet sl;
632	sl.printf ("magicmap %d %d %d %d ", (xmax - xmin + 1), (ymax - ymin + 1),
633	MAGIC_MAP_HALF - xmin, MAGIC_MAP_HALF - ymin);
634
635	for (int y = ymin; y <= ymax; y++)
636	for (int x = xmin; x <= xmax; x++)
637	sl << uint8 (map_mark[x + MAGIC_MAP_SIZE * y] & ~FACE_FLOOR);
638
639	Send_With_Handling (pl->contr->socket, &sl);
640
641	free (map_mark);
642	}
643
644
645	/**
646	* Send a kill log record to sockets
647	*/
648
649	void
650	Log_Kill (const char Who, const char What, int WhatType, const char *With, int WithType)
651	{
652	size_t len;
653	char buf[MAX_BUF];
654
655	if (With != NULL)
656	snprintf (buf, MAX_BUF, "%s\t%s\t%d\t%s\t%d\n", Who, What, WhatType, With, WithType);
657	else
658	snprintf (buf, MAX_BUF, "%s\t%s\t%d\n", Who, What, WhatType);
659
660	len = strlen (buf);
661	}