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)
    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;

      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;
        }

  SockList sl (MAXSOCKBUF);
  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);

  sl.free ();

  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:	1.13
Committed:	Wed Dec 13 21:27:09 2006 UTC (17 years, 5 months ago) by root
Content type:	text/plain
Branch:	MAIN
Changes since 1.12:	+19 -27 lines
Log Message:	continued simplifying network code, partially removed support for sc protocol 1026
#	User	Rev	Content
1	root	1.8
2	elmex	1.1	/*
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	root	1.6	The authors can be reached via e-mail at <crossfire@schmorp.de>
23	elmex	1.1	*/
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	root	1.5	static void
48			esrv_print_msg (NewSocket * ns, int color, const char *str)
49	elmex	1.1	{
50	root	1.5	char buf[HUGE_BUF];
51	elmex	1.1
52	root	1.5	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	elmex	1.1	}
60	root	1.5
61	elmex	1.1	/* LOG(llevDebug,"sending %s to socket, len=%d\n", buf, strlen(buf));*/
62	root	1.5	Write_String_To_Socket (ns, buf, strlen (buf));
63	elmex	1.1	}
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	root	1.5	static void
75			esrv_print_ext_msg (NewSocket * ns, int color, uint8 type, uint8 subtype, const char *message)
76	elmex	1.1	{
77	root	1.5	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	elmex	1.1	/* 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	root	1.5	static void
98			print_message (int colr, const object pl, const char tmp)
99			{
100	elmex	1.1
101	root	1.11	if (!tmp)
102			tmp = "[NULL]";
103	elmex	1.1
104			if (!pl \|\| (pl->type == PLAYER && pl->contr == NULL))
105			return;
106
107	root	1.5	if (pl->type == PLAYER)
108			{
109			esrv_print_msg (&pl->contr->socket, colr, (char *) tmp);
110			return;
111			}
112	elmex	1.1	}
113
114			/**
115			* Prints out the contents of specified buffer structures,
116			* and clears the string.
117			*/
118
119	root	1.5	void
120			flush_output_element (const object pl, Output_Buf outputs)
121	elmex	1.1	{
122	root	1.5	char tbuf[MAX_BUF];
123	elmex	1.1
124	root	1.5	if (outputs->buf == NULL)
125			return;
126			if (outputs->count > 1)
127			{
128			snprintf (tbuf, MAX_BUF, "%d times %s", outputs->count, &outputs->buf);
129			print_message (NDI_BLACK, pl, tbuf);
130			}
131			else
132			print_message (NDI_BLACK, pl, &outputs->buf);
133	elmex	1.1
134	root	1.5	outputs->buf = NULL;
135			outputs->first_update = 0; /* This way, it will be reused */
136	elmex	1.1	}
137
138			/**
139			* Sends message to player through output buffers.
140			* \param pl player to send message
141			* \param buf message to send
142			*
143			* If player's output_count is 1, sends message directly.
144			*
145			* Else checks output buffers for specified message.
146			*
147			* If found, checks if message should be sent now.
148			*
149			* If message not already in buffers, flushes olders buffer,
150			* and adds message to queue.
151			*/
152
153	root	1.5	static void
154			check_output_buffers (const object pl, const char buf)
155	elmex	1.1	{
156	root	1.5	int i, oldest = 0;
157	elmex	1.1
158	root	1.5	if (pl->contr->outputs_count < 2)
159			{
160			print_message (NDI_BLACK, pl, buf);
161			return;
162			}
163			else
164			{
165			for (i = 0; i < NUM_OUTPUT_BUFS; i++)
166			{
167			if (pl->contr->outputs[i].buf && !strcmp (buf, pl->contr->outputs[i].buf))
168			break;
169			else if (pl->contr->outputs[i].first_update < pl->contr->outputs[oldest].first_update)
170			oldest = i;
171	root	1.2	}
172	root	1.5	/* We found a match */
173			if (i < NUM_OUTPUT_BUFS)
174			{
175			pl->contr->outputs[i].count++;
176			if (pl->contr->outputs[i].count >= pl->contr->outputs_count)
177			{
178			flush_output_element (pl, &pl->contr->outputs[i]);
179	root	1.2	}
180			}
181	root	1.5	/* No match - flush the oldest, and put the new one in */
182			else
183			{
184			flush_output_element (pl, &pl->contr->outputs[oldest]);
185
186			pl->contr->outputs[oldest].first_update = pticks;
187			pl->contr->outputs[oldest].count = 1;
188			pl->contr->outputs[oldest].buf = buf;
189	root	1.2	}
190	elmex	1.1	}
191			}
192	root	1.5
193	elmex	1.1
194
195			/**
196			* Sends message to player(s).
197			*
198			* flags is various flags - mostly color, plus a few specials.
199			*
200			* pri is priority. It is a little odd - the lower the value, the more
201			* important it is. Thus, 0 gets sent no matter what. Otherwise, the
202			* value must be less than the listening level that the player has set.
203			* Unfortunately, there is no clear guideline on what each level does what.
204			*
205			* pl can be passed as NULL - in fact, this will be done if NDI_ALL is set
206			* in the flags.
207			*
208			* If message is black, and not NDI_UNIQUE, gets sent through output buffers.
209			*
210			*/
211
212	root	1.5	void
213			new_draw_info (int flags, int pri, const object pl, const char buf)
214	elmex	1.1	{
215
216	root	1.5	if (flags & NDI_ALL)
217			{
218			player *tmppl;
219	elmex	1.1
220	root	1.5	for (tmppl = first_player; tmppl != NULL; tmppl = tmppl->next)
221			new_draw_info ((flags & ~NDI_ALL), pri, tmppl->ob, buf);
222	elmex	1.1
223	root	1.5	return;
224	elmex	1.1	}
225	root	1.11
226	root	1.5	if (!pl \|\| (pl->type == PLAYER && pl->contr == NULL))
227			{
228			/* Write to the socket? */
229			print_message (0, NULL, buf);
230			return;
231	elmex	1.1	}
232	root	1.11
233	root	1.5	if (pl->type != PLAYER)
234			return;
235	root	1.11
236	root	1.5	if (pri >= pl->contr->listening)
237			return;
238
239			if ((flags & NDI_COLOR_MASK) == NDI_BLACK && !(flags & NDI_UNIQUE))
240	root	1.11	/* following prints stuff out, as appropriate */
241			check_output_buffers (pl, buf);
242	root	1.5	else
243	root	1.11	print_message (flags & NDI_COLOR_MASK, pl, buf);
244	elmex	1.1	}
245
246			/**
247			* Wrapper for new_draw_info printf-like.
248			*
249			* This is a pretty trivial function, but it allows us to use printf style
250			* formatting, so instead of the calling function having to do it, we do
251			* it here. It may also have advantages in the future for reduction of
252			* client/server bandwidth (client could keep track of various strings
253			*/
254
255	root	1.5	void
256			new_draw_info_format (int flags, int pri, const object pl, const char format, ...)
257	elmex	1.1	{
258	root	1.5	char buf[HUGE_BUF];
259
260			va_list ap;
261
262			va_start (ap, format);
263	elmex	1.1
264	root	1.5	vsnprintf (buf, HUGE_BUF, format, ap);
265	elmex	1.1
266	root	1.5	va_end (ap);
267	elmex	1.1
268	root	1.5	new_draw_info (flags, pri, pl, buf);
269	elmex	1.1	}
270
271
272	root	1.5	void
273			draw_ext_info (int flags, int pri, const object pl, uint8 type, uint8 subtype, const char message, const char *oldmessage)
274			{
275
276			if (!pl \|\| (pl->type != PLAYER) \|\| (pl->contr == NULL))
277			return;
278
279			if (pri >= pl->contr->listening)
280			return;
281			if (!CLIENT_SUPPORT_READABLES (&pl->contr->socket, type))
282			{
283			char buf = (char ) malloc (strlen (oldmessage == NULL ? message : oldmessage) + 1);
284
285			if (buf == NULL)
286			LOG (llevError, "info::draw_ext_info -> Out of memory!");
287			else
288			{
289			strcpy (buf, oldmessage == NULL ? message : oldmessage);
290			strip_media_tag (buf);
291			new_draw_info (flags, pri, pl, buf);
292			free (buf);
293	elmex	1.1	}
294	root	1.5	}
295			else
296			{
297			esrv_print_ext_msg (&pl->contr->socket, flags & NDI_COLOR_MASK, type, subtype, message);
298	elmex	1.1	}
299			}
300
301	root	1.5	void
302			draw_ext_info_format (int flags, int pri, const object pl, uint8 type, uint8 subtype, const char old_format, char *new_format, ...)
303			{
304
305			char buf[HUGE_BUF];
306
307			if (!pl \|\| (pl->type != PLAYER) \|\| (pl->contr == NULL))
308			return;
309
310			if (pri >= pl->contr->listening)
311			return;
312			if (!CLIENT_SUPPORT_READABLES (&pl->contr->socket, type))
313			{
314			va_list ap;
315
316			LOG (llevDebug, "Non supported extension text type for client.\n");
317			va_start (ap, new_format);
318			vsnprintf (buf, HUGE_BUF, old_format, ap);
319			va_end (ap);
320			new_draw_info (flags, pri, pl, buf);
321			return;
322			}
323			else
324			{
325			va_list ap;
326
327			va_start (ap, new_format);
328			vsnprintf (buf, HUGE_BUF, new_format, ap);
329			va_end (ap);
330			strip_media_tag (buf);
331			esrv_print_ext_msg (&pl->contr->socket, flags & NDI_COLOR_MASK, type, subtype, buf);
332	elmex	1.1	}
333			}
334	root	1.5
335	elmex	1.1	/**
336			* Writes to everyone on the map except op. This is useful for emotions.
337			*/
338
339	root	1.5	void
340	root	1.8	new_info_map_except (int color, maptile * map, object op, const char str)
341	root	1.5	{
342			player *pl;
343	elmex	1.1
344	root	1.5	for (pl = first_player; pl != NULL; pl = pl->next)
345			if (pl->ob != NULL && pl->ob->map == map && pl->ob != op)
346			{
347			new_draw_info (color, 0, pl->ob, str);
348			}
349	elmex	1.1	}
350
351			/**
352			* Writes to everyone on the map except op1 and op2
353			*/
354
355	root	1.5	void
356	root	1.8	new_info_map_except2 (int color, maptile * map, object op1, object op2, const char *str)
357	root	1.5	{
358			player *pl;
359
360			for (pl = first_player; pl != NULL; pl = pl->next)
361			if (pl->ob != NULL && pl->ob->map == map && pl->ob != op1 && pl->ob != op2)
362			{
363			new_draw_info (color, 0, pl->ob, str);
364			}
365	elmex	1.1	}
366
367			/**
368			* Writes to everyone on the specified map
369			*/
370
371	root	1.5	void
372	root	1.8	new_info_map (int color, maptile * map, const char *str)
373	root	1.5	{
374			player *pl;
375	elmex	1.1
376	root	1.5	for (pl = first_player; pl != NULL; pl = pl->next)
377			if (pl->ob != NULL && pl->ob->map == map)
378			{
379			new_draw_info (color, 0, pl->ob, str);
380			}
381	elmex	1.1	}
382
383
384			/**
385			* This does nothing now. However, in theory, we should probably send
386			* something to the client and let the client figure out how it might want
387			* to handle this
388			*/
389	root	1.5	void
390			clear_win_info (object *op)
391	elmex	1.1	{
392			}
393
394			/**
395			* Get player's current range attack in obuf.
396			*/
397	root	1.5	void
398			rangetostring (object pl, char obuf)
399	elmex	1.1	{
400	root	1.5	switch (pl->contr->shoottype)
401			{
402	root	1.8	case range_none:
403			strcpy (obuf, "Range: nothing");
404			break;
405	root	1.2
406	root	1.8	case range_bow:
407			{
408			object *op;
409	root	1.2
410	root	1.8	for (op = pl->inv; op; op = op->below)
411			if (op->type == BOW && QUERY_FLAG (op, FLAG_APPLIED))
412	root	1.5	break;
413	root	1.10
414	root	1.8	if (op == NULL)
415			break;
416
417			sprintf (obuf, "Range: %s (%s)", query_base_name (op, 0), op->race ? (const char *) op->race : "nothing");
418			}
419			break;
420	root	1.5
421	root	1.8	case range_magic:
422			if (settings.casting_time == TRUE)
423			{
424			if (pl->casting_time > -1)
425			{
426			if (pl->casting_time == 0)
427	root	1.9	sprintf (obuf, "Range: Holding spell (%s)", &pl->spell->name);
428	root	1.8	else
429	root	1.9	sprintf (obuf, "Range: Casting spell (%s)", &pl->spell->name);
430	root	1.8	}
431			else
432			sprintf (obuf, "Range: spell (%s)", &pl->contr->ranges[range_magic]->name);
433	root	1.5	}
434	root	1.8	else
435			sprintf (obuf, "Range: spell (%s)", &pl->contr->ranges[range_magic]->name);
436			break;
437
438			case range_misc:
439			sprintf (obuf, "Range: %s", pl->contr->ranges[range_misc] ? query_base_name (pl->contr->ranges[range_misc], 0) : "none");
440			break;
441
442			/* range_scroll is only used for controlling golems. If the
443			* the player does not have a golem, reset some things.
444			*/
445			case range_golem:
446			if (pl->contr->ranges[range_golem] != NULL)
447			sprintf (obuf, "Range: golem (%s)", &pl->contr->ranges[range_golem]->name);
448			else
449			{
450			pl->contr->shoottype = range_none;
451			strcpy (obuf, "Range: nothing");
452			}
453			break;
454	root	1.2
455	root	1.8	case range_skill:
456			sprintf (obuf, "Skill: %s", pl->chosen_skill != NULL ? (const char *) pl->chosen_skill->name : "none");
457			break;
458
459			case range_builder:
460			sprintf (obuf, "Builder: %s", query_base_name (pl->contr->ranges[range_builder], 0));
461			break;
462	elmex	1.1
463	root	1.8	default:
464			strcpy (obuf, "Range: illegal");
465	elmex	1.1	}
466			}
467
468			/**
469			* Sets player title.
470			*/
471	root	1.5	void
472			set_title (object pl, char buf)
473	elmex	1.1	{
474	root	1.5	/* Eneq(@csd.uu.se): Let players define their own titles. */
475			if (pl->contr->own_title[0] == '\0')
476			sprintf (buf, "Player: %s the %s", (const char ) pl->name, (const char ) pl->contr->title);
477			else
478			sprintf (buf, "Player: %s %s", (const char ) pl->name, (const char ) pl->contr->own_title);
479	elmex	1.1	}
480
481
482			/**
483			* Helper for magic map creation.
484			*
485			* Takes a player, the map_mark array and an x and y starting position.
486			* pl is the player.
487			* px, py are offsets from the player.
488			*
489			* This function examines all the adjacant spaces next to px, py.
490			* It updates the map_mark arrow with the color and high bits set
491			* for various code values.
492			*/
493	root	1.5	static void
494			magic_mapping_mark_recursive (object pl, char map_mark, int px, int py)
495	elmex	1.1	{
496	root	1.5	int x, y, dx, dy, mflags;
497			sint16 nx, ny;
498	root	1.7	maptile *mp;
499	root	1.5	New_Face *f;
500
501			for (dx = -1; dx <= 1; dx++)
502			{
503			for (dy = -1; dy <= 1; dy++)
504			{
505			x = px + dx;
506			y = py + dy;
507
508			if (FABS (x) >= MAGIC_MAP_HALF \|\| FABS (y) >= MAGIC_MAP_HALF)
509			continue;
510
511			mp = pl->map;
512			nx = pl->x + x;
513			ny = pl->y + y;
514
515			mflags = get_map_flags (pl->map, &mp, nx, ny, &nx, &ny);
516			if (mflags & P_OUT_OF_MAP)
517			continue;
518
519			if (map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] == 0)
520			{
521			f = GET_MAP_FACE (mp, nx, ny, 0);
522			if (f == blank_face)
523			f = GET_MAP_FACE (mp, nx, ny, 1);
524			if (f == blank_face)
525			f = GET_MAP_FACE (mp, nx, ny, 2);
526
527			/* Should probably have P_NO_MAGIC here also, but then shops don't
528			* work.
529			*/
530			if (mflags & P_BLOCKSVIEW)
531			map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] = FACE_WALL \| (f ? f->magicmap : 0);
532			else
533			{
534			map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] = FACE_FLOOR \| (f ? f->magicmap : 0);
535			magic_mapping_mark_recursive (pl, map_mark, x, y);
536	root	1.2	}
537			}
538			}
539	elmex	1.1	}
540			}
541
542
543			/**
544			* Creates magic map for player.
545			*
546			* Note: For improved magic mapping display, the space that blocks
547			* the view is now marked with value 2. Any dependencies of map_mark
548			* being nonzero have been changed to check for 1. Also, since
549			* map_mark is a char value, putting 2 in should cause no problems.
550			*
551			* This function examines the map the player is on, and determines what
552			* is visible. 2 is set for walls or objects that blocks view. 1
553			* is for open spaces. map_mark should already have been initialized
554			* to zero before this is called.
555			* strength is an initial strength*2 rectangular area that we automatically
556			* see in/penetrate through.
557			*/
558
559	root	1.5	void
560			magic_mapping_mark (object pl, char map_mark, int strength)
561	elmex	1.1	{
562	root	1.5	int x, y, mflags;
563			sint16 nx, ny;
564	root	1.7	maptile *mp;
565	root	1.5	New_Face *f;
566
567			for (x = -strength; x < strength; x++)
568			{
569			for (y = -strength; y < strength; y++)
570			{
571			mp = pl->map;
572			nx = pl->x + x;
573			ny = pl->y + y;
574			mflags = get_map_flags (pl->map, &mp, nx, ny, &nx, &ny);
575			if (mflags & P_OUT_OF_MAP)
576			continue;
577			else
578			{
579			f = GET_MAP_FACE (mp, nx, ny, 0);
580			if (f == blank_face)
581			f = GET_MAP_FACE (mp, nx, ny, 1);
582			if (f == blank_face)
583			f = GET_MAP_FACE (mp, nx, ny, 2);
584	root	1.2	}
585
586	root	1.5	if (mflags & P_BLOCKSVIEW)
587			map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] = FACE_WALL \| (f ? f->magicmap : 0);
588			else
589			{
590			map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] = FACE_FLOOR \| (f ? f->magicmap : 0);
591			magic_mapping_mark_recursive (pl, map_mark, x, y);
592	root	1.2	}
593			}
594	elmex	1.1	}
595			}
596
597
598			/**
599			* Creates and sends magic map to player.
600			*
601			* The following function is a lot messier than it really should be,
602			* but there is no real easy solution.
603			*
604			* Mark Wedel
605			*/
606
607	root	1.5	void
608			draw_magic_map (object *pl)
609	elmex	1.1	{
610	root	1.13	char map_mark = (char )calloc (MAGIC_MAP_SIZE * MAGIC_MAP_SIZE, 1);
611	root	1.5	int xmin, xmax, ymin, ymax;
612
613			if (pl->type != PLAYER)
614			{
615			LOG (llevError, "Non player object called draw_map.\n");
616			return;
617			}
618
619			/* First, we figure out what spaces are 'reachable' by the player */
620			magic_mapping_mark (pl, map_mark, 3);
621
622			/* We now go through and figure out what spaces have been
623			* marked, and thus figure out rectangular region we send
624			* to the client (eg, if only a 10x10 area is visible, we only
625			* want to send those 100 spaces.)
626			*/
627			xmin = MAGIC_MAP_SIZE;
628			ymin = MAGIC_MAP_SIZE;
629			xmax = 0;
630			ymax = 0;
631	root	1.13
632			for (int x = 0; x < MAGIC_MAP_SIZE; x++)
633			for (int y = 0; y < MAGIC_MAP_SIZE; y++)
634			if (map_mark[x + MAP_WIDTH (pl->map) * y] \| FACE_FLOOR)
635	root	1.5	{
636	root	1.13	xmin = x < xmin ? x : xmin;
637			xmax = x > xmax ? x : xmax;
638			ymin = y < ymin ? y : ymin;
639			ymax = y > ymax ? y : ymax;
640	root	1.2	}
641	elmex	1.1
642	root	1.13	SockList sl (MAXSOCKBUF);
643			sl.printf ("magicmap %d %d %d %d ", (xmax - xmin + 1), (ymax - ymin + 1),
644			MAGIC_MAP_HALF - xmin, MAGIC_MAP_HALF - ymin);
645
646			for (int y = ymin; y <= ymax; y++)
647			for (int x = xmin; x <= xmax; x++)
648			sl << uint8 (map_mark[x + MAGIC_MAP_SIZE * y] & ~FACE_FLOOR);
649
650			Send_With_Handling (&pl->contr->socket, &sl);
651	root	1.5
652	root	1.13	sl.free ();
653	root	1.5
654			free (map_mark);
655	elmex	1.1	}
656
657
658			/**
659			* Send a kill log record to sockets
660			*/
661
662	root	1.5	void
663			Log_Kill (const char Who, const char What, int WhatType, const char *With, int WithType)
664			{
665			size_t len;
666			char buf[MAX_BUF];
667
668			if (With != NULL)
669	root	1.11	snprintf (buf, MAX_BUF, "%s\t%s\t%d\t%s\t%d\n", Who, What, WhatType, With, WithType);
670	root	1.5	else
671	root	1.11	snprintf (buf, MAX_BUF, "%s\t%s\t%d\n", Who, What, WhatType);
672
673	root	1.5	len = strlen (buf);
674	elmex	1.1	}