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 * 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->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);

  pl->contr->socket->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:	1.21
Committed:	Sat Dec 16 03:08:26 2006 UTC (17 years, 5 months ago) by root
Content type:	text/plain
Branch:	MAIN
Changes since 1.20:	+2 -7 lines
Log Message:	- socket i/o is completely asynchronous now - some command sare handled immediately - others (most palying related commands) are queued for later (as of now synchronous) processing - specifying a max queue length (in seconds) is possible, but disabled - also add some syntax sugar for network code
#	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 * ns, int color, const char *str)
49	{
50	ns->send_packet_printf ("drawinfo %d %s", color, str);
51	}
52
53	/**
54	* Draws an extended message on the client.
55	* ns the socket to send message to
56	* color color informations (used mainly if client does not support message type)
57	* type,
58	* subtype type and subtype of text message
59	* intro Intro message to send with main message if client does not support the message type
60	* message The main message
61	*/
62	static void
63	esrv_print_ext_msg (client * ns, int color, uint8 type, uint8 subtype, const char *message)
64	{
65	ns->send_packet_printf ("drawextinfo %d %hhu %hhu %s", color, type, subtype, message);
66	}
67
68	/**
69	* Frontend for esrv_print_msg
70	* \param colr message color
71	* \param pl player to send to. Can be NULL
72	* \param tmp message to send. Can be NULL
73	*
74	* If pl is NULL or without contr set, writes message to log.
75	*
76	* Else sends message to player via esrv_print_msg
77	*/
78
79	static void
80	print_message (int colr, const object pl, const char tmp)
81	{
82
83	if (!tmp)
84	tmp = "[NULL]";
85
86	if (!pl \|\| (pl->type == PLAYER && pl->contr == NULL))
87	return;
88
89	if (pl->type == PLAYER)
90	esrv_print_msg (pl->contr->socket, colr, (char *) tmp);
91	}
92
93	/**
94	* Prints out the contents of specified buffer structures,
95	* and clears the string.
96	*/
97
98	void
99	flush_output_element (const object pl, Output_Buf outputs)
100	{
101	char tbuf[MAX_BUF];
102
103	if (outputs->buf == NULL)
104	return;
105	if (outputs->count > 1)
106	{
107	snprintf (tbuf, MAX_BUF, "%d times %s", outputs->count, &outputs->buf);
108	print_message (NDI_BLACK, pl, tbuf);
109	}
110	else
111	print_message (NDI_BLACK, pl, &outputs->buf);
112
113	outputs->buf = NULL;
114	outputs->first_update = 0; /* This way, it will be reused */
115	}
116
117	/**
118	* Sends message to player through output buffers.
119	* \param pl player to send message
120	* \param buf message to send
121	*
122	* If player's output_count is 1, sends message directly.
123	*
124	* Else checks output buffers for specified message.
125	*
126	* If found, checks if message should be sent now.
127	*
128	* If message not already in buffers, flushes olders buffer,
129	* and adds message to queue.
130	*/
131
132	static void
133	check_output_buffers (const object pl, const char buf)
134	{
135	int i, oldest = 0;
136
137	if (pl->contr->outputs_count < 2)
138	{
139	print_message (NDI_BLACK, pl, buf);
140	return;
141	}
142	else
143	{
144	for (i = 0; i < NUM_OUTPUT_BUFS; i++)
145	{
146	if (pl->contr->outputs[i].buf && !strcmp (buf, pl->contr->outputs[i].buf))
147	break;
148	else if (pl->contr->outputs[i].first_update < pl->contr->outputs[oldest].first_update)
149	oldest = i;
150	}
151	/* We found a match */
152	if (i < NUM_OUTPUT_BUFS)
153	{
154	pl->contr->outputs[i].count++;
155	if (pl->contr->outputs[i].count >= pl->contr->outputs_count)
156	{
157	flush_output_element (pl, &pl->contr->outputs[i]);
158	}
159	}
160	/* No match - flush the oldest, and put the new one in */
161	else
162	{
163	flush_output_element (pl, &pl->contr->outputs[oldest]);
164
165	pl->contr->outputs[oldest].first_update = pticks;
166	pl->contr->outputs[oldest].count = 1;
167	pl->contr->outputs[oldest].buf = buf;
168	}
169	}
170	}
171
172
173
174	/**
175	* Sends message to player(s).
176	*
177	* flags is various flags - mostly color, plus a few specials.
178	*
179	* pri is priority. It is a little odd - the lower the value, the more
180	* important it is. Thus, 0 gets sent no matter what. Otherwise, the
181	* value must be less than the listening level that the player has set.
182	* Unfortunately, there is no clear guideline on what each level does what.
183	*
184	* pl can be passed as NULL - in fact, this will be done if NDI_ALL is set
185	* in the flags.
186	*
187	* If message is black, and not NDI_UNIQUE, gets sent through output buffers.
188	*
189	*/
190
191	void
192	new_draw_info (int flags, int pri, const object pl, const char buf)
193	{
194
195	if (flags & NDI_ALL)
196	{
197	player *tmppl;
198
199	for (tmppl = first_player; tmppl != NULL; tmppl = tmppl->next)
200	new_draw_info ((flags & ~NDI_ALL), pri, tmppl->ob, buf);
201
202	return;
203	}
204
205	if (!pl \|\| (pl->type == PLAYER && pl->contr == NULL))
206	{
207	/* Write to the socket? */
208	print_message (0, NULL, buf);
209	return;
210	}
211
212	if (pl->type != PLAYER)
213	return;
214
215	if (pri >= pl->contr->listening)
216	return;
217
218	if ((flags & NDI_COLOR_MASK) == NDI_BLACK && !(flags & NDI_UNIQUE))
219	/* following prints stuff out, as appropriate */
220	check_output_buffers (pl, buf);
221	else
222	print_message (flags & NDI_COLOR_MASK, pl, buf);
223	}
224
225	/**
226	* Wrapper for new_draw_info printf-like.
227	*
228	* This is a pretty trivial function, but it allows us to use printf style
229	* formatting, so instead of the calling function having to do it, we do
230	* it here. It may also have advantages in the future for reduction of
231	* client/server bandwidth (client could keep track of various strings
232	*/
233
234	void
235	new_draw_info_format (int flags, int pri, const object pl, const char format, ...)
236	{
237	char buf[HUGE_BUF];
238
239	va_list ap;
240
241	va_start (ap, format);
242
243	vsnprintf (buf, HUGE_BUF, format, ap);
244
245	va_end (ap);
246
247	new_draw_info (flags, pri, pl, buf);
248	}
249
250
251	void
252	draw_ext_info (int flags, int pri, const object pl, uint8 type, uint8 subtype, const char message, const char *oldmessage)
253	{
254
255	if (!pl \|\| (pl->type != PLAYER) \|\| (pl->contr == NULL))
256	return;
257
258	if (pri >= pl->contr->listening)
259	return;
260
261	if (!CLIENT_SUPPORT_READABLES (pl->contr->socket, type))
262	{
263	char buf = (char ) malloc (strlen (oldmessage == NULL ? message : oldmessage) + 1);
264
265	if (buf == NULL)
266	LOG (llevError, "info::draw_ext_info -> Out of memory!");
267	else
268	{
269	strcpy (buf, oldmessage == NULL ? message : oldmessage);
270	strip_media_tag (buf);
271	new_draw_info (flags, pri, pl, buf);
272	free (buf);
273	}
274	}
275	else
276	esrv_print_ext_msg (pl->contr->socket, flags & NDI_COLOR_MASK, type, subtype, message);
277	}
278
279	void
280	draw_ext_info_format (int flags, int pri, const object pl, uint8 type, uint8 subtype, const char old_format, char *new_format, ...)
281	{
282
283	char buf[HUGE_BUF];
284
285	if (!pl \|\| (pl->type != PLAYER) \|\| (pl->contr == NULL))
286	return;
287
288	if (pri >= pl->contr->listening)
289	return;
290
291	if (!CLIENT_SUPPORT_READABLES (pl->contr->socket, type))
292	{
293	va_list ap;
294
295	LOG (llevDebug, "Non supported extension text type for client.\n");
296	va_start (ap, new_format);
297	vsnprintf (buf, HUGE_BUF, old_format, ap);
298	va_end (ap);
299	new_draw_info (flags, pri, pl, buf);
300	return;
301	}
302	else
303	{
304	va_list ap;
305
306	va_start (ap, new_format);
307	vsnprintf (buf, HUGE_BUF, new_format, ap);
308	va_end (ap);
309	strip_media_tag (buf);
310	esrv_print_ext_msg (pl->contr->socket, flags & NDI_COLOR_MASK, type, subtype, buf);
311	}
312	}
313
314	/**
315	* Writes to everyone on the map except op. This is useful for emotions.
316	*/
317
318	void
319	new_info_map_except (int color, maptile * map, object op, const char str)
320	{
321	player *pl;
322
323	for (pl = first_player; pl != NULL; pl = pl->next)
324	if (pl->ob != NULL && pl->ob->map == map && pl->ob != op)
325	{
326	new_draw_info (color, 0, pl->ob, str);
327	}
328	}
329
330	/**
331	* Writes to everyone on the map except op1 and op2
332	*/
333
334	void
335	new_info_map_except2 (int color, maptile * map, object op1, object op2, const char *str)
336	{
337	player *pl;
338
339	for (pl = first_player; pl != NULL; pl = pl->next)
340	if (pl->ob != NULL && pl->ob->map == map && pl->ob != op1 && pl->ob != op2)
341	{
342	new_draw_info (color, 0, pl->ob, str);
343	}
344	}
345
346	/**
347	* Writes to everyone on the specified map
348	*/
349
350	void
351	new_info_map (int color, maptile * map, const char *str)
352	{
353	player *pl;
354
355	for (pl = first_player; pl != NULL; pl = pl->next)
356	if (pl->ob != NULL && pl->ob->map == map)
357	{
358	new_draw_info (color, 0, pl->ob, str);
359	}
360	}
361
362
363	/**
364	* This does nothing now. However, in theory, we should probably send
365	* something to the client and let the client figure out how it might want
366	* to handle this
367	*/
368	void
369	clear_win_info (object *op)
370	{
371	}
372
373	/**
374	* Get player's current range attack in obuf.
375	*/
376	void
377	rangetostring (object pl, char obuf)
378	{
379	switch (pl->contr->shoottype)
380	{
381	case range_none:
382	strcpy (obuf, "Range: nothing");
383	break;
384
385	case range_bow:
386	{
387	object *op;
388
389	for (op = pl->inv; op; op = op->below)
390	if (op->type == BOW && QUERY_FLAG (op, FLAG_APPLIED))
391	break;
392
393	if (op == NULL)
394	break;
395
396	sprintf (obuf, "Range: %s (%s)", query_base_name (op, 0), op->race ? (const char *) op->race : "nothing");
397	}
398	break;
399
400	case range_magic:
401	if (settings.casting_time == TRUE)
402	{
403	if (pl->casting_time > -1)
404	{
405	if (pl->casting_time == 0)
406	sprintf (obuf, "Range: Holding spell (%s)", &pl->spell->name);
407	else
408	sprintf (obuf, "Range: Casting spell (%s)", &pl->spell->name);
409	}
410	else
411	sprintf (obuf, "Range: spell (%s)", &pl->contr->ranges[range_magic]->name);
412	}
413	else
414	sprintf (obuf, "Range: spell (%s)", &pl->contr->ranges[range_magic]->name);
415	break;
416
417	case range_misc:
418	sprintf (obuf, "Range: %s", pl->contr->ranges[range_misc] ? query_base_name (pl->contr->ranges[range_misc], 0) : "none");
419	break;
420
421	/* range_scroll is only used for controlling golems. If the
422	* the player does not have a golem, reset some things.
423	*/
424	case range_golem:
425	if (pl->contr->ranges[range_golem] != NULL)
426	sprintf (obuf, "Range: golem (%s)", &pl->contr->ranges[range_golem]->name);
427	else
428	{
429	pl->contr->shoottype = range_none;
430	strcpy (obuf, "Range: nothing");
431	}
432	break;
433
434	case range_skill:
435	sprintf (obuf, "Skill: %s", pl->chosen_skill != NULL ? (const char *) pl->chosen_skill->name : "none");
436	break;
437
438	case range_builder:
439	sprintf (obuf, "Builder: %s", query_base_name (pl->contr->ranges[range_builder], 0));
440	break;
441
442	default:
443	strcpy (obuf, "Range: illegal");
444	}
445	}
446
447	/**
448	* Sets player title.
449	*/
450	void
451	set_title (object pl, char buf)
452	{
453	/* Eneq(@csd.uu.se): Let players define their own titles. */
454	if (pl->contr->own_title[0] == '\0')
455	sprintf (buf, "Player: %s the %s", (const char ) pl->name, (const char ) pl->contr->title);
456	else
457	sprintf (buf, "Player: %s %s", (const char ) pl->name, (const char ) pl->contr->own_title);
458	}
459
460
461	/**
462	* Helper for magic map creation.
463	*
464	* Takes a player, the map_mark array and an x and y starting position.
465	* pl is the player.
466	* px, py are offsets from the player.
467	*
468	* This function examines all the adjacant spaces next to px, py.
469	* It updates the map_mark arrow with the color and high bits set
470	* for various code values.
471	*/
472	static void
473	magic_mapping_mark_recursive (object pl, char map_mark, int px, int py)
474	{
475	int x, y, dx, dy, mflags;
476	sint16 nx, ny;
477	maptile *mp;
478	New_Face *f;
479
480	for (dx = -1; dx <= 1; dx++)
481	{
482	for (dy = -1; dy <= 1; dy++)
483	{
484	x = px + dx;
485	y = py + dy;
486
487	if (FABS (x) >= MAGIC_MAP_HALF \|\| FABS (y) >= MAGIC_MAP_HALF)
488	continue;
489
490	mp = pl->map;
491	nx = pl->x + x;
492	ny = pl->y + y;
493
494	mflags = get_map_flags (pl->map, &mp, nx, ny, &nx, &ny);
495	if (mflags & P_OUT_OF_MAP)
496	continue;
497
498	if (map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] == 0)
499	{
500	f = GET_MAP_FACE (mp, nx, ny, 0);
501	if (f == blank_face)
502	f = GET_MAP_FACE (mp, nx, ny, 1);
503	if (f == blank_face)
504	f = GET_MAP_FACE (mp, nx, ny, 2);
505
506	/* Should probably have P_NO_MAGIC here also, but then shops don't
507	* work.
508	*/
509	if (mflags & P_BLOCKSVIEW)
510	map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] = FACE_WALL \| (f ? f->magicmap : 0);
511	else
512	{
513	map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] = FACE_FLOOR \| (f ? f->magicmap : 0);
514	magic_mapping_mark_recursive (pl, map_mark, x, y);
515	}
516	}
517	}
518	}
519	}
520
521
522	/**
523	* Creates magic map for player.
524	*
525	* Note: For improved magic mapping display, the space that blocks
526	* the view is now marked with value 2. Any dependencies of map_mark
527	* being nonzero have been changed to check for 1. Also, since
528	* map_mark is a char value, putting 2 in should cause no problems.
529	*
530	* This function examines the map the player is on, and determines what
531	* is visible. 2 is set for walls or objects that blocks view. 1
532	* is for open spaces. map_mark should already have been initialized
533	* to zero before this is called.
534	* strength is an initial strength*2 rectangular area that we automatically
535	* see in/penetrate through.
536	*/
537
538	void
539	magic_mapping_mark (object pl, char map_mark, int strength)
540	{
541	int x, y, mflags;
542	sint16 nx, ny;
543	maptile *mp;
544	New_Face *f;
545
546	for (x = -strength; x < strength; x++)
547	{
548	for (y = -strength; y < strength; y++)
549	{
550	mp = pl->map;
551	nx = pl->x + x;
552	ny = pl->y + y;
553	mflags = get_map_flags (pl->map, &mp, nx, ny, &nx, &ny);
554	if (mflags & P_OUT_OF_MAP)
555	continue;
556	else
557	{
558	f = GET_MAP_FACE (mp, nx, ny, 0);
559	if (f == blank_face)
560	f = GET_MAP_FACE (mp, nx, ny, 1);
561	if (f == blank_face)
562	f = GET_MAP_FACE (mp, nx, ny, 2);
563	}
564
565	if (mflags & P_BLOCKSVIEW)
566	map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] = FACE_WALL \| (f ? f->magicmap : 0);
567	else
568	{
569	map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] = FACE_FLOOR \| (f ? f->magicmap : 0);
570	magic_mapping_mark_recursive (pl, map_mark, x, y);
571	}
572	}
573	}
574	}
575
576
577	/**
578	* Creates and sends magic map to player.
579	*
580	* The following function is a lot messier than it really should be,
581	* but there is no real easy solution.
582	*
583	* Mark Wedel
584	*/
585
586	void
587	draw_magic_map (object *pl)
588	{
589	char map_mark = (char )calloc (MAGIC_MAP_SIZE * MAGIC_MAP_SIZE, 1);
590	int xmin, xmax, ymin, ymax;
591
592	if (pl->type != PLAYER)
593	{
594	LOG (llevError, "Non player object called draw_map.\n");
595	return;
596	}
597
598	/* First, we figure out what spaces are 'reachable' by the player */
599	magic_mapping_mark (pl, map_mark, 3);
600
601	/* We now go through and figure out what spaces have been
602	* marked, and thus figure out rectangular region we send
603	* to the client (eg, if only a 10x10 area is visible, we only
604	* want to send those 100 spaces.)
605	*/
606	xmin = MAGIC_MAP_SIZE;
607	ymin = MAGIC_MAP_SIZE;
608	xmax = 0;
609	ymax = 0;
610
611	for (int x = 0; x < MAGIC_MAP_SIZE; x++)
612	for (int y = 0; y < MAGIC_MAP_SIZE; y++)
613	if (map_mark[x + MAP_WIDTH (pl->map) * y] \| FACE_FLOOR)
614	{
615	xmin = x < xmin ? x : xmin;
616	xmax = x > xmax ? x : xmax;
617	ymin = y < ymin ? y : ymin;
618	ymax = y > ymax ? y : ymax;
619	}
620
621	packet sl;
622	sl.printf ("magicmap %d %d %d %d ", (xmax - xmin + 1), (ymax - ymin + 1),
623	MAGIC_MAP_HALF - xmin, MAGIC_MAP_HALF - ymin);
624
625	for (int y = ymin; y <= ymax; y++)
626	for (int x = xmin; x <= xmax; x++)
627	sl << uint8 (map_mark[x + MAGIC_MAP_SIZE * y] & ~FACE_FLOOR);
628
629	pl->contr->socket->send_packet (sl);
630
631	free (map_mark);
632	}
633
634
635	/**
636	* Send a kill log record to sockets
637	*/
638
639	void
640	Log_Kill (const char Who, const char What, int WhatType, const char *With, int WithType)
641	{
642	size_t len;
643	char buf[MAX_BUF];
644
645	if (With != NULL)
646	snprintf (buf, MAX_BUF, "%s\t%s\t%d\t%s\t%d\n", Who, What, WhatType, With, WithType);
647	else
648	snprintf (buf, MAX_BUF, "%s\t%s\t%d\n", Who, What, WhatType);
649
650	len = strlen (buf);
651	}