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 (NewSocket * ns, int color, const char *str)
{
  char buf[HUGE_BUF];

  if (ns->status == Ns_Old)
    {
      snprintf (buf, HUGE_BUF, "%s\n", str);
    }
  else
    {
      snprintf (buf, HUGE_BUF, "drawinfo %d %s", color, str);
    }

/*    LOG(llevDebug,"sending %s to socket, len=%d\n", buf, strlen(buf));*/
  Write_String_To_Socket (ns, buf, strlen (buf));
}

/**
 * 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 (NewSocket * ns, int color, uint8 type, uint8 subtype, const char *message)
{
  char buf[HUGE_BUF];

  snprintf (buf, HUGE_BUF, "drawextinfo %d %hhu %hhu %s", color, type, subtype, message);
  Write_String_To_Socket (ns, buf, strlen (buf));

/*    LOG(llevDebug,"sending %s to socket, len=%d", buf, strlen(buf));*/

}

/**
 * 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 == (char *) NULL)
    {
      tmp = "[NULL]";
    }

  if (!pl || (pl->type == PLAYER && pl->contr == NULL))
    return;

  if (pl->type == PLAYER)
    {
      esrv_print_msg (&pl->contr->socket, colr, (char *) tmp);
      return;
    }
}


/**
 * 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;
      int i;

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

      for (i = 1; i < socket_info.allocated_sockets; i++)
        {
          if (init_sockets[i].status == Ns_Old && init_sockets[i].old_mode != Old_Listen && pri < 10)
            {
              cs_write_string (&init_sockets[i], buf, strlen (buf));
              /* Most messages don't have a newline, so add one */
              cs_write_string (&init_sockets[i], "\n", 1);
            }
        }

      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)", (const char *) pl->spell->name);
                else
                  sprintf (obuf, "Range: Casting spell (%s)", (const char *) 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)
{
  int x, y;
  char *map_mark = (char *) calloc (MAGIC_MAP_SIZE * MAGIC_MAP_SIZE, 1);
  int xmin, xmax, ymin, ymax;
  SockList sl;

  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 (x = 0; x < MAGIC_MAP_SIZE; x++)
    {
      for (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;
            }
        }
    }

  sl.buf = (unsigned char *) malloc (MAXSOCKBUF);
  snprintf ((char *) sl.buf, MAXSOCKBUF, "magicmap %d %d %d %d ", (xmax - xmin + 1), (ymax - ymin + 1),
            MAGIC_MAP_HALF - xmin, MAGIC_MAP_HALF - ymin);
  sl.len = strlen ((char *) sl.buf);

  for (y = ymin; y <= ymax; y++)
    {
      for (x = xmin; x <= xmax; x++)
        {
          sl.buf[sl.len++] = map_mark[x + MAGIC_MAP_SIZE * y] & ~FACE_FLOOR;
        }                       /* x loop */
    }                           /* y loop */

  Send_With_Handling (&pl->contr->socket, &sl);
  free (sl.buf);
  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)
{
  int i;
  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);
  for (i = 1; i < socket_info.allocated_sockets; i++)
    {
      if (init_sockets[i].old_mode == Old_Listen)
        {
          cs_write_string (&init_sockets[i], buf, len);
        }
    }
}
Revision:	1.8
Committed:	Tue Sep 19 09:38:32 2006 UTC (17 years, 8 months ago) by root
Content type:	text/plain
Branch:	MAIN
Changes since 1.7:	+59 -58 lines
Log Message:	indent
#	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 (NewSocket * ns, int color, const char *str)
49	{
50	char buf[HUGE_BUF];
51
52	if (ns->status == Ns_Old)
53	{
54	snprintf (buf, HUGE_BUF, "%s\n", str);
55	}
56	else
57	{
58	snprintf (buf, HUGE_BUF, "drawinfo %d %s", color, str);
59	}
60
61	/* LOG(llevDebug,"sending %s to socket, len=%d\n", buf, strlen(buf));*/
62	Write_String_To_Socket (ns, buf, strlen (buf));
63	}
64
65	/**
66	* Draws an extended message on the client.
67	* ns the socket to send message to
68	* color color informations (used mainly if client does not support message type)
69	* type,
70	* subtype type and subtype of text message
71	* intro Intro message to send with main message if client does not support the message type
72	* message The main message
73	*/
74	static void
75	esrv_print_ext_msg (NewSocket * ns, int color, uint8 type, uint8 subtype, const char *message)
76	{
77	char buf[HUGE_BUF];
78
79	snprintf (buf, HUGE_BUF, "drawextinfo %d %hhu %hhu %s", color, type, subtype, message);
80	Write_String_To_Socket (ns, buf, strlen (buf));
81
82	/* LOG(llevDebug,"sending %s to socket, len=%d", buf, strlen(buf));*/
83
84	}
85
86	/**
87	* Frontend for esrv_print_msg
88	* \param colr message color
89	* \param pl player to send to. Can be NULL
90	* \param tmp message to send. Can be NULL
91	*
92	* If pl is NULL or without contr set, writes message to log.
93	*
94	* Else sends message to player via esrv_print_msg
95	*/
96
97	static void
98	print_message (int colr, const object pl, const char tmp)
99	{
100
101	if (tmp == (char *) NULL)
102	{
103	tmp = "[NULL]";
104	}
105
106	if (!pl \|\| (pl->type == PLAYER && pl->contr == NULL))
107	return;
108
109	if (pl->type == PLAYER)
110	{
111	esrv_print_msg (&pl->contr->socket, colr, (char *) tmp);
112	return;
113	}
114	}
115
116
117	/**
118	* Prints out the contents of specified buffer structures,
119	* and clears the string.
120	*/
121
122	void
123	flush_output_element (const object pl, Output_Buf outputs)
124	{
125	char tbuf[MAX_BUF];
126
127	if (outputs->buf == NULL)
128	return;
129	if (outputs->count > 1)
130	{
131	snprintf (tbuf, MAX_BUF, "%d times %s", outputs->count, &outputs->buf);
132	print_message (NDI_BLACK, pl, tbuf);
133	}
134	else
135	print_message (NDI_BLACK, pl, &outputs->buf);
136
137	outputs->buf = NULL;
138	outputs->first_update = 0; /* This way, it will be reused */
139	}
140
141	/**
142	* Sends message to player through output buffers.
143	* \param pl player to send message
144	* \param buf message to send
145	*
146	* If player's output_count is 1, sends message directly.
147	*
148	* Else checks output buffers for specified message.
149	*
150	* If found, checks if message should be sent now.
151	*
152	* If message not already in buffers, flushes olders buffer,
153	* and adds message to queue.
154	*/
155
156	static void
157	check_output_buffers (const object pl, const char buf)
158	{
159	int i, oldest = 0;
160
161	if (pl->contr->outputs_count < 2)
162	{
163	print_message (NDI_BLACK, pl, buf);
164	return;
165	}
166	else
167	{
168	for (i = 0; i < NUM_OUTPUT_BUFS; i++)
169	{
170	if (pl->contr->outputs[i].buf && !strcmp (buf, pl->contr->outputs[i].buf))
171	break;
172	else if (pl->contr->outputs[i].first_update < pl->contr->outputs[oldest].first_update)
173	oldest = i;
174	}
175	/* We found a match */
176	if (i < NUM_OUTPUT_BUFS)
177	{
178	pl->contr->outputs[i].count++;
179	if (pl->contr->outputs[i].count >= pl->contr->outputs_count)
180	{
181	flush_output_element (pl, &pl->contr->outputs[i]);
182	}
183	}
184	/* No match - flush the oldest, and put the new one in */
185	else
186	{
187	flush_output_element (pl, &pl->contr->outputs[oldest]);
188
189	pl->contr->outputs[oldest].first_update = pticks;
190	pl->contr->outputs[oldest].count = 1;
191	pl->contr->outputs[oldest].buf = buf;
192	}
193	}
194	}
195
196
197
198	/**
199	* Sends message to player(s).
200	*
201	* flags is various flags - mostly color, plus a few specials.
202	*
203	* pri is priority. It is a little odd - the lower the value, the more
204	* important it is. Thus, 0 gets sent no matter what. Otherwise, the
205	* value must be less than the listening level that the player has set.
206	* Unfortunately, there is no clear guideline on what each level does what.
207	*
208	* pl can be passed as NULL - in fact, this will be done if NDI_ALL is set
209	* in the flags.
210	*
211	* If message is black, and not NDI_UNIQUE, gets sent through output buffers.
212	*
213	*/
214
215	void
216	new_draw_info (int flags, int pri, const object pl, const char buf)
217	{
218
219	if (flags & NDI_ALL)
220	{
221	player *tmppl;
222	int i;
223
224	for (tmppl = first_player; tmppl != NULL; tmppl = tmppl->next)
225	new_draw_info ((flags & ~NDI_ALL), pri, tmppl->ob, buf);
226
227	for (i = 1; i < socket_info.allocated_sockets; i++)
228	{
229	if (init_sockets[i].status == Ns_Old && init_sockets[i].old_mode != Old_Listen && pri < 10)
230	{
231	cs_write_string (&init_sockets[i], buf, strlen (buf));
232	/* Most messages don't have a newline, so add one */
233	cs_write_string (&init_sockets[i], "\n", 1);
234	}
235	}
236
237	return;
238	}
239	if (!pl \|\| (pl->type == PLAYER && pl->contr == NULL))
240	{
241	/* Write to the socket? */
242	print_message (0, NULL, buf);
243	return;
244	}
245	if (pl->type != PLAYER)
246	return;
247	if (pri >= pl->contr->listening)
248	return;
249
250	if ((flags & NDI_COLOR_MASK) == NDI_BLACK && !(flags & NDI_UNIQUE))
251	{
252	/* following prints stuff out, as appropriate */
253	check_output_buffers (pl, buf);
254	}
255	else
256	{
257	print_message (flags & NDI_COLOR_MASK, pl, buf);
258	}
259	}
260
261	/**
262	* Wrapper for new_draw_info printf-like.
263	*
264	* This is a pretty trivial function, but it allows us to use printf style
265	* formatting, so instead of the calling function having to do it, we do
266	* it here. It may also have advantages in the future for reduction of
267	* client/server bandwidth (client could keep track of various strings
268	*/
269
270	void
271	new_draw_info_format (int flags, int pri, const object pl, const char format, ...)
272	{
273	char buf[HUGE_BUF];
274
275	va_list ap;
276
277	va_start (ap, format);
278
279	vsnprintf (buf, HUGE_BUF, format, ap);
280
281	va_end (ap);
282
283	new_draw_info (flags, pri, pl, buf);
284	}
285
286
287	void
288	draw_ext_info (int flags, int pri, const object pl, uint8 type, uint8 subtype, const char message, const char *oldmessage)
289	{
290
291	if (!pl \|\| (pl->type != PLAYER) \|\| (pl->contr == NULL))
292	return;
293
294	if (pri >= pl->contr->listening)
295	return;
296	if (!CLIENT_SUPPORT_READABLES (&pl->contr->socket, type))
297	{
298	char buf = (char ) malloc (strlen (oldmessage == NULL ? message : oldmessage) + 1);
299
300	if (buf == NULL)
301	LOG (llevError, "info::draw_ext_info -> Out of memory!");
302	else
303	{
304	strcpy (buf, oldmessage == NULL ? message : oldmessage);
305	strip_media_tag (buf);
306	new_draw_info (flags, pri, pl, buf);
307	free (buf);
308	}
309	}
310	else
311	{
312	esrv_print_ext_msg (&pl->contr->socket, flags & NDI_COLOR_MASK, type, subtype, message);
313	}
314	}
315
316	void
317	draw_ext_info_format (int flags, int pri, const object pl, uint8 type, uint8 subtype, const char old_format, char *new_format, ...)
318	{
319
320	char buf[HUGE_BUF];
321
322	if (!pl \|\| (pl->type != PLAYER) \|\| (pl->contr == NULL))
323	return;
324
325	if (pri >= pl->contr->listening)
326	return;
327	if (!CLIENT_SUPPORT_READABLES (&pl->contr->socket, type))
328	{
329	va_list ap;
330
331	LOG (llevDebug, "Non supported extension text type for client.\n");
332	va_start (ap, new_format);
333	vsnprintf (buf, HUGE_BUF, old_format, ap);
334	va_end (ap);
335	new_draw_info (flags, pri, pl, buf);
336	return;
337	}
338	else
339	{
340	va_list ap;
341
342	va_start (ap, new_format);
343	vsnprintf (buf, HUGE_BUF, new_format, ap);
344	va_end (ap);
345	strip_media_tag (buf);
346	esrv_print_ext_msg (&pl->contr->socket, flags & NDI_COLOR_MASK, type, subtype, buf);
347	}
348	}
349
350	/**
351	* Writes to everyone on the map except op. This is useful for emotions.
352	*/
353
354	void
355	new_info_map_except (int color, maptile * map, object op, const char str)
356	{
357	player *pl;
358
359	for (pl = first_player; pl != NULL; pl = pl->next)
360	if (pl->ob != NULL && pl->ob->map == map && pl->ob != op)
361	{
362	new_draw_info (color, 0, pl->ob, str);
363	}
364	}
365
366	/**
367	* Writes to everyone on the map except op1 and op2
368	*/
369
370	void
371	new_info_map_except2 (int color, maptile * map, object op1, object op2, const char *str)
372	{
373	player *pl;
374
375	for (pl = first_player; pl != NULL; pl = pl->next)
376	if (pl->ob != NULL && pl->ob->map == map && pl->ob != op1 && pl->ob != op2)
377	{
378	new_draw_info (color, 0, pl->ob, str);
379	}
380	}
381
382	/**
383	* Writes to everyone on the specified map
384	*/
385
386	void
387	new_info_map (int color, maptile * map, const char *str)
388	{
389	player *pl;
390
391	for (pl = first_player; pl != NULL; pl = pl->next)
392	if (pl->ob != NULL && pl->ob->map == map)
393	{
394	new_draw_info (color, 0, pl->ob, str);
395	}
396	}
397
398
399	/**
400	* This does nothing now. However, in theory, we should probably send
401	* something to the client and let the client figure out how it might want
402	* to handle this
403	*/
404	void
405	clear_win_info (object *op)
406	{
407	}
408
409	/**
410	* Get player's current range attack in obuf.
411	*/
412	void
413	rangetostring (object pl, char obuf)
414	{
415	switch (pl->contr->shoottype)
416	{
417	case range_none:
418	strcpy (obuf, "Range: nothing");
419	break;
420
421	case range_bow:
422	{
423	object *op;
424
425	for (op = pl->inv; op; op = op->below)
426	if (op->type == BOW && QUERY_FLAG (op, FLAG_APPLIED))
427	break;
428	if (op == NULL)
429	break;
430
431	sprintf (obuf, "Range: %s (%s)", query_base_name (op, 0), op->race ? (const char *) op->race : "nothing");
432	}
433	break;
434
435	case range_magic:
436	if (settings.casting_time == TRUE)
437	{
438	if (pl->casting_time > -1)
439	{
440	if (pl->casting_time == 0)
441	sprintf (obuf, "Range: Holding spell (%s)", (const char *) pl->spell->name);
442	else
443	sprintf (obuf, "Range: Casting spell (%s)", (const char *) pl->spell->name);
444	}
445	else
446	sprintf (obuf, "Range: spell (%s)", &pl->contr->ranges[range_magic]->name);
447	}
448	else
449	sprintf (obuf, "Range: spell (%s)", &pl->contr->ranges[range_magic]->name);
450	break;
451
452	case range_misc:
453	sprintf (obuf, "Range: %s", pl->contr->ranges[range_misc] ? query_base_name (pl->contr->ranges[range_misc], 0) : "none");
454	break;
455
456	/* range_scroll is only used for controlling golems. If the
457	* the player does not have a golem, reset some things.
458	*/
459	case range_golem:
460	if (pl->contr->ranges[range_golem] != NULL)
461	sprintf (obuf, "Range: golem (%s)", &pl->contr->ranges[range_golem]->name);
462	else
463	{
464	pl->contr->shoottype = range_none;
465	strcpy (obuf, "Range: nothing");
466	}
467	break;
468
469	case range_skill:
470	sprintf (obuf, "Skill: %s", pl->chosen_skill != NULL ? (const char *) pl->chosen_skill->name : "none");
471	break;
472
473	case range_builder:
474	sprintf (obuf, "Builder: %s", query_base_name (pl->contr->ranges[range_builder], 0));
475	break;
476
477	default:
478	strcpy (obuf, "Range: illegal");
479	}
480	}
481
482	/**
483	* Sets player title.
484	*/
485	void
486	set_title (object pl, char buf)
487	{
488	/* Eneq(@csd.uu.se): Let players define their own titles. */
489	if (pl->contr->own_title[0] == '\0')
490	sprintf (buf, "Player: %s the %s", (const char ) pl->name, (const char ) pl->contr->title);
491	else
492	sprintf (buf, "Player: %s %s", (const char ) pl->name, (const char ) pl->contr->own_title);
493	}
494
495
496	/**
497	* Helper for magic map creation.
498	*
499	* Takes a player, the map_mark array and an x and y starting position.
500	* pl is the player.
501	* px, py are offsets from the player.
502	*
503	* This function examines all the adjacant spaces next to px, py.
504	* It updates the map_mark arrow with the color and high bits set
505	* for various code values.
506	*/
507	static void
508	magic_mapping_mark_recursive (object pl, char map_mark, int px, int py)
509	{
510	int x, y, dx, dy, mflags;
511	sint16 nx, ny;
512	maptile *mp;
513	New_Face *f;
514
515	for (dx = -1; dx <= 1; dx++)
516	{
517	for (dy = -1; dy <= 1; dy++)
518	{
519	x = px + dx;
520	y = py + dy;
521
522	if (FABS (x) >= MAGIC_MAP_HALF \|\| FABS (y) >= MAGIC_MAP_HALF)
523	continue;
524
525	mp = pl->map;
526	nx = pl->x + x;
527	ny = pl->y + y;
528
529	mflags = get_map_flags (pl->map, &mp, nx, ny, &nx, &ny);
530	if (mflags & P_OUT_OF_MAP)
531	continue;
532
533	if (map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] == 0)
534	{
535	f = GET_MAP_FACE (mp, nx, ny, 0);
536	if (f == blank_face)
537	f = GET_MAP_FACE (mp, nx, ny, 1);
538	if (f == blank_face)
539	f = GET_MAP_FACE (mp, nx, ny, 2);
540
541	/* Should probably have P_NO_MAGIC here also, but then shops don't
542	* work.
543	*/
544	if (mflags & P_BLOCKSVIEW)
545	map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] = FACE_WALL \| (f ? f->magicmap : 0);
546	else
547	{
548	map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] = FACE_FLOOR \| (f ? f->magicmap : 0);
549	magic_mapping_mark_recursive (pl, map_mark, x, y);
550	}
551	}
552	}
553	}
554	}
555
556
557	/**
558	* Creates magic map for player.
559	*
560	* Note: For improved magic mapping display, the space that blocks
561	* the view is now marked with value 2. Any dependencies of map_mark
562	* being nonzero have been changed to check for 1. Also, since
563	* map_mark is a char value, putting 2 in should cause no problems.
564	*
565	* This function examines the map the player is on, and determines what
566	* is visible. 2 is set for walls or objects that blocks view. 1
567	* is for open spaces. map_mark should already have been initialized
568	* to zero before this is called.
569	* strength is an initial strength*2 rectangular area that we automatically
570	* see in/penetrate through.
571	*/
572
573	void
574	magic_mapping_mark (object pl, char map_mark, int strength)
575	{
576	int x, y, mflags;
577	sint16 nx, ny;
578	maptile *mp;
579	New_Face *f;
580
581	for (x = -strength; x < strength; x++)
582	{
583	for (y = -strength; y < strength; y++)
584	{
585	mp = pl->map;
586	nx = pl->x + x;
587	ny = pl->y + y;
588	mflags = get_map_flags (pl->map, &mp, nx, ny, &nx, &ny);
589	if (mflags & P_OUT_OF_MAP)
590	continue;
591	else
592	{
593	f = GET_MAP_FACE (mp, nx, ny, 0);
594	if (f == blank_face)
595	f = GET_MAP_FACE (mp, nx, ny, 1);
596	if (f == blank_face)
597	f = GET_MAP_FACE (mp, nx, ny, 2);
598	}
599
600	if (mflags & P_BLOCKSVIEW)
601	map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] = FACE_WALL \| (f ? f->magicmap : 0);
602	else
603	{
604	map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] = FACE_FLOOR \| (f ? f->magicmap : 0);
605	magic_mapping_mark_recursive (pl, map_mark, x, y);
606	}
607	}
608	}
609	}
610
611
612	/**
613	* Creates and sends magic map to player.
614	*
615	* The following function is a lot messier than it really should be,
616	* but there is no real easy solution.
617	*
618	* Mark Wedel
619	*/
620
621	void
622	draw_magic_map (object *pl)
623	{
624	int x, y;
625	char map_mark = (char ) calloc (MAGIC_MAP_SIZE * MAGIC_MAP_SIZE, 1);
626	int xmin, xmax, ymin, ymax;
627	SockList sl;
628
629	if (pl->type != PLAYER)
630	{
631	LOG (llevError, "Non player object called draw_map.\n");
632	return;
633	}
634
635	/* First, we figure out what spaces are 'reachable' by the player */
636	magic_mapping_mark (pl, map_mark, 3);
637
638	/* We now go through and figure out what spaces have been
639	* marked, and thus figure out rectangular region we send
640	* to the client (eg, if only a 10x10 area is visible, we only
641	* want to send those 100 spaces.)
642	*/
643	xmin = MAGIC_MAP_SIZE;
644	ymin = MAGIC_MAP_SIZE;
645	xmax = 0;
646	ymax = 0;
647	for (x = 0; x < MAGIC_MAP_SIZE; x++)
648	{
649	for (y = 0; y < MAGIC_MAP_SIZE; y++)
650	{
651	if (map_mark[x + MAP_WIDTH (pl->map) * y] \| FACE_FLOOR)
652	{
653	xmin = x < xmin ? x : xmin;
654	xmax = x > xmax ? x : xmax;
655	ymin = y < ymin ? y : ymin;
656	ymax = y > ymax ? y : ymax;
657	}
658	}
659	}
660
661	sl.buf = (unsigned char *) malloc (MAXSOCKBUF);
662	snprintf ((char *) sl.buf, MAXSOCKBUF, "magicmap %d %d %d %d ", (xmax - xmin + 1), (ymax - ymin + 1),
663	MAGIC_MAP_HALF - xmin, MAGIC_MAP_HALF - ymin);
664	sl.len = strlen ((char *) sl.buf);
665
666	for (y = ymin; y <= ymax; y++)
667	{
668	for (x = xmin; x <= xmax; x++)
669	{
670	sl.buf[sl.len++] = map_mark[x + MAGIC_MAP_SIZE * y] & ~FACE_FLOOR;
671	} /* x loop */
672	} /* y loop */
673
674	Send_With_Handling (&pl->contr->socket, &sl);
675	free (sl.buf);
676	free (map_mark);
677	}
678
679
680	/**
681	* Send a kill log record to sockets
682	*/
683
684	void
685	Log_Kill (const char Who, const char What, int WhatType, const char *With, int WithType)
686	{
687	int i;
688	size_t len;
689	char buf[MAX_BUF];
690
691	if (With != NULL)
692	{
693	snprintf (buf, MAX_BUF, "%s\t%s\t%d\t%s\t%d\n", Who, What, WhatType, With, WithType);
694	}
695	else
696	{
697	snprintf (buf, MAX_BUF, "%s\t%s\t%d\n", Who, What, WhatType);
698	}
699	len = strlen (buf);
700	for (i = 1; i < socket_info.allocated_sockets; i++)
701	{
702	if (init_sockets[i].old_mode == Old_Listen)
703	{
704	cs_write_string (&init_sockets[i], buf, len);
705	}
706	}
707	}