server/socket/info.C

/*
 * CrossFire, A Multiplayer game for X-windows
 * 
 * Copyright (C) 2005, 2006, 2007 Marc Lehmann & Crossfire+ Development Team
 * Copyright (C) 2002 Mark Wedel & Crossfire Development Team
 * Copyright (C) 1992 Frank Tore Johansen
 * 
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 * The authors can be reached via e-mail at <crossfire@schmorp.de>
 */

/**
 * \file
 * Basic client output functions.
 *
 * \date 2003-12-02
 *
 * This file implements some of the simpler output functions to the
 * client.  Basically, things like sending text strings along
 */

#include <global.h>
#include <sproto.h>
#include <stdarg.h>
#include <spells.h>
#include <skills.h>

/**
 * Draws a normal message on the client.  It is pretty 
 * much the same thing as the draw_info above, but takes a color
 * parameter.  the esrv_drawinfo functions should probably be
 * replaced with this, just using black as the color.
 */
static void
esrv_print_msg (client *ns, int color, const char *str)
{
  ns->send_packet_printf ("drawinfo %d %s", color, str);
}

/**
 * Draws   an extended message on the client. 
 * ns      the socket to send message to
 * color   color informations (used mainly if client does not support message type)
 * type,
 * subtype type and subtype of text message
 * intro   Intro message to send with main message if client does not support the message type
 * message The main message
 */
static void
esrv_print_ext_msg (client *ns, int color, uint8 type, uint8 subtype, const char *message)
{
  ns->send_packet_printf ("drawextinfo %d %hhu %hhu %s", color, type, subtype, message);
}

/**
 * Frontend for esrv_print_msg
 * \param colr message color
 * \param pl player to send to. Can be NULL
 * \param tmp message to send. Can be NULL
 *
 * If pl is NULL or without contr set, writes message to log.
 *
 * Else sends message to player via esrv_print_msg
 */
static void
print_message (int colr, const object *pl, const char *tmp)
{
  if (!tmp)
    tmp = "[NULL]";

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

  if (pl->type == PLAYER)
    esrv_print_msg (pl->contr->ns, colr, (char *) tmp);
}

/**
 * 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)
    {
      for_all_players (pl)
        new_draw_info (flags & ~NDI_ALL, pri, pl->ob, buf);

      return;
    }

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

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

  if ((flags & NDI_COLOR_MASK) == NDI_BLACK && !(flags & NDI_UNIQUE))
    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->ns, type))
    {
      char *buf = (char *) malloc (strlen (oldmessage == NULL ? message : oldmessage) + 1);

      if (buf == NULL)
        LOG (llevError, "info::draw_ext_info -> Out of memory!");
      else
        {
          strcpy (buf, oldmessage == NULL ? message : oldmessage);
          strip_media_tag (buf);
          new_draw_info (flags, pri, pl, buf);
          free (buf);
        }
    }
  else
    esrv_print_ext_msg (pl->contr->ns, flags & NDI_COLOR_MASK, type, subtype, message);
}

void
draw_ext_info_format (int flags, int pri, const object *pl, uint8 type, uint8 subtype, const char *old_format, char *new_format, ...)
{
  char buf[HUGE_BUF];

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

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

  if (!CLIENT_SUPPORT_READABLES (pl->contr->ns, type))
    {
      va_list ap;

      LOG (llevDebug, "Non supported extension text type for client.\n");
      va_start (ap, new_format);
      vsnprintf (buf, HUGE_BUF, old_format, ap);
      va_end (ap);
      new_draw_info (flags, pri, pl, buf);
      return;
    }
  else
    {
      va_list ap;

      va_start (ap, new_format);
      vsnprintf (buf, HUGE_BUF, new_format, ap);
      va_end (ap);
      strip_media_tag (buf);
      esrv_print_ext_msg (pl->contr->ns, flags & NDI_COLOR_MASK, type, subtype, buf);
    }
}

/**
 * Writes to everyone on the map *except* op.  This is useful for emotions.
 */

void
new_info_map_except (int color, maptile * map, object *op, const char *str)
{
  for_all_players (pl)
    if (pl->ob != NULL && pl->ob->map == map && pl->ob != op)
      new_draw_info (color, 0, pl->ob, str);
}

/**
 * Writes to everyone on the map except op1 and op2
 */

void
new_info_map_except2 (int color, maptile * map, object *op1, object *op2, const char *str)
{
  for_all_players (pl)
    if (pl->ob != NULL && pl->ob->map == map && pl->ob != op1 && pl->ob != op2)
      new_draw_info (color, 0, pl->ob, str);
}

/**
 * Writes to everyone on the specified map
 */

void
new_info_map (int color, maptile * map, const char *str)
{
  for_all_players (pl)
    if (pl->ob != NULL && pl->ob->map == map)
      new_draw_info (color, 0, pl->ob, str);
}

/**
 * This does nothing now.  However, in theory, we should probably send
 * something to the client and let the client figure out how it might want
 * to handle this
 */
void
clear_win_info (object *op)
{
}

/**
 * Get player's current range attack in obuf.
 */
void
rangetostring (object *pl, char *obuf)
{
  switch (pl->contr->shoottype)
    {
      case range_none:
        strcpy (obuf, "Range: nothing");
        break;

      case range_bow:
        {
          object *op;

          for (op = pl->inv; op; op = op->below)
            if (op->type == BOW && QUERY_FLAG (op, FLAG_APPLIED))
              break;

          if (op == NULL)
            break;

          sprintf (obuf, "Range: %s (%s)", query_base_name (op, 0), op->race ? (const char *) op->race : "nothing");
        }
        break;

      case range_magic:
        if (settings.casting_time == TRUE)
          {
            if (pl->casting_time > -1)
              {
                if (pl->casting_time == 0)
                  sprintf (obuf, "Range: Holding spell (%s)", &pl->spell->name);
                else
                  sprintf (obuf, "Range: Casting spell (%s)", &pl->spell->name);
              }
            else
              sprintf (obuf, "Range: spell (%s)", &pl->contr->ranges[range_magic]->name);
          }
        else
          sprintf (obuf, "Range: spell (%s)", &pl->contr->ranges[range_magic]->name);
        break;

      case range_misc:
        sprintf (obuf, "Range: %s", pl->contr->ranges[range_misc] ? query_base_name (pl->contr->ranges[range_misc], 0) : "none");
        break;

        /* range_scroll is only used for controlling golems.  If the
         * the player does not have a golem, reset some things.
         */
      case range_golem:
        if (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);
}

// formerly a macro, used only by magic map, so optimised it out
static inline faceidx
GET_MAP_FACE (maptile *m, int x, int y, int layer)
{
  if (object *op = GET_MAP_FACE_OBJ (m, x, y, layer))
    return op->face;
  else
    return 0;
}

/**
 * Helper for magic map creation.
 *
 * Takes a player, the map_mark array and an x and y starting position.
 * pl is the player.
 * px, py are offsets from the player.
 *
 * This function examines all the adjacant spaces next to px, py.
 * It updates the map_mark arrow with the color and high bits set
 * for various code values.
 */
static void
magic_mapping_mark_recursive (object *pl, char *map_mark, int px, int py)
{
  int x, y, dx, dy, mflags;
  sint16 nx, ny;
  maptile *mp;

  for (dx = -1; dx <= 1; dx++)
    {
      for (dy = -1; dy <= 1; dy++)
        {
          x = px + dx;
          y = py + dy;

          if (FABS (x) >= MAGIC_MAP_HALF || FABS (y) >= MAGIC_MAP_HALF)
            continue;

          mp = pl->map;
          nx = pl->x + x;
          ny = pl->y + y;

          mflags = get_map_flags (pl->map, &mp, nx, ny, &nx, &ny);
          if (mflags & P_OUT_OF_MAP)
            continue;

          if (map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] == 0)
            {
              int f = GET_MAP_FACE (mp, nx, ny, 0);
              if (f == blank_face)
                {
                  f = GET_MAP_FACE (mp, nx, ny, 1);
                  if (f == blank_face)
                    f = GET_MAP_FACE (mp, nx, ny, 2);
                }

              int magicmap = faces [f].magicmap;

              /* Should probably have P_NO_MAGIC here also, but then shops don't
               * work.
               */
              if (mflags & P_BLOCKSVIEW)
                map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] = FACE_WALL | magicmap;
              else
                {
                  map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] = FACE_FLOOR | magicmap;
                  magic_mapping_mark_recursive (pl, map_mark, x, y);
                }
            }
        }
    }
}

/**
 * Creates magic map for player.
 *
 * Note:  For improved magic mapping display, the space that blocks
 * the view is now marked with value 2.  Any dependencies of map_mark
 * being nonzero have been changed to check for 1.  Also, since
 * map_mark is a char value, putting 2 in should cause no problems.
 *
 * This function examines the map the player is on, and determines what
 * is visible.  2 is set for walls or objects that blocks view.  1
 * is for open spaces.  map_mark should already have been initialised
 * to zero before this is called.
 * strength is an initial strength*2 rectangular area that we automatically
 * see in/penetrate through.
 */
void
magic_mapping_mark (object *pl, char *map_mark, int strength)
{
  int x, y, mflags;
  sint16 nx, ny;
  maptile *mp;

  for (x = -strength; x < strength; x++)
    {
      for (y = -strength; y < strength; y++)
        {
          mp = pl->map;
          nx = pl->x + x;
          ny = pl->y + y;

          mflags = get_map_flags (pl->map, &mp, nx, ny, &nx, &ny);
          if (mflags & P_OUT_OF_MAP)
            continue;

          int f = GET_MAP_FACE (mp, nx, ny, 0);
          if (f == blank_face)
            {
              f = GET_MAP_FACE (mp, nx, ny, 1);
              if (f == blank_face)
                f = GET_MAP_FACE (mp, nx, ny, 2);
            }

          int magicmap = faces [f].magicmap;

          if (mflags & P_BLOCKSVIEW)
            map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] = FACE_WALL | magicmap;
          else
            {
              map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] = FACE_FLOOR | magicmap;
              magic_mapping_mark_recursive (pl, map_mark, x, y);
            }
        }
    }
}

/**
 * Creates and sends magic map to player.
 *
 * The following function is a lot messier than it really should be,
 * but there is no real easy solution.
 *
 * Mark Wedel
 */
void
draw_magic_map (object *pl)
{
  char *map_mark = (char *)calloc (MAGIC_MAP_SIZE * MAGIC_MAP_SIZE, 1);
  int xmin, xmax, ymin, ymax;

  if (pl->type != PLAYER)
    {
      LOG (llevError, "Non player object called draw_map.\n");
      return;
    }

  /* First, we figure out what spaces are 'reachable' by the player */
  magic_mapping_mark (pl, map_mark, 3);

  /* We now go through and figure out what spaces have been
   * marked, and thus figure out rectangular region we send
   * to the client (eg, if only a 10x10 area is visible, we only
   * want to send those 100 spaces.)
   */
  xmin = MAGIC_MAP_SIZE;
  ymin = MAGIC_MAP_SIZE;
  xmax = 0;
  ymax = 0;

  for (int x = 0; x < MAGIC_MAP_SIZE; x++)
    for (int y = 0; y < MAGIC_MAP_SIZE; y++)
      if (map_mark[x + pl->map->width * y] | FACE_FLOOR)
        {
          xmin = x < xmin ? x : xmin;
          xmax = x > xmax ? x : xmax;
          ymin = y < ymin ? y : ymin;
          ymax = y > ymax ? y : ymax;
        }

  packet sl;
  sl.printf ("magicmap %d %d %d %d ", (xmax - xmin + 1), (ymax - ymin + 1),
             MAGIC_MAP_HALF - xmin, MAGIC_MAP_HALF - ymin);

  for (int y = ymin; y <= ymax; y++)
    for (int x = xmin; x <= xmax; x++)
      sl << uint8 (map_mark[x + MAGIC_MAP_SIZE * y] & ~FACE_FLOOR);

  pl->contr->ns->send_packet (sl);

  free (map_mark);
}

/**
 * Send a kill log record to sockets
 */
void
Log_Kill (const char *Who, const char *What, int WhatType, const char *With, int WithType)
{
  size_t len;
  char buf[MAX_BUF];

  if (With != NULL)
    snprintf (buf, MAX_BUF, "%s\t%s\t%d\t%s\t%d\n", Who, What, WhatType, With, WithType);
  else
    snprintf (buf, MAX_BUF, "%s\t%s\t%d\n", Who, What, WhatType);

  len = strlen (buf);
}

Revision:	1.36
Committed:	Mon Mar 12 01:13:10 2007 UTC (17 years, 2 months ago) by root
Content type:	text/plain
Branch:	MAIN
Changes since 1.35:	+10 -0 lines
Log Message:	- remove faces form each mapspace, as they were stored and calculated solely for magicmap. sic. - as update_ is a major bottleneck, this will certainly help load, too. - semantics have changed: objects with blank faces are now transfered, but i assume this is rare (and might give a nice hint about invisible stuff :)
#	Content
1	/*
2	* CrossFire, A Multiplayer game for X-windows
3	*
4	* Copyright (C) 2005, 2006, 2007 Marc Lehmann & Crossfire+ Development Team
5	* Copyright (C) 2002 Mark Wedel & Crossfire Development Team
6	* Copyright (C) 1992 Frank Tore Johansen
7	*
8	* This program is free software; you can redistribute it and/or modify
9	* it under the terms of the GNU General Public License as published by
10	* the Free Software Foundation; either version 2 of the License, or
11	* (at your option) any later version.
12	*
13	* This program is distributed in the hope that it will be useful,
14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16	* GNU General Public License for more details.
17	*
18	* You should have received a copy of the GNU General Public License
19	* along with this program; if not, write to the Free Software
20	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21	*
22	* The authors can be reached via e-mail at <crossfire@schmorp.de>
23	*/
24
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	static void
79	print_message (int colr, const object pl, const char tmp)
80	{
81	if (!tmp)
82	tmp = "[NULL]";
83
84	if (!pl \|\| (pl->type == PLAYER && pl->contr == NULL))
85	return;
86
87	if (pl->type == PLAYER)
88	esrv_print_msg (pl->contr->ns, colr, (char *) tmp);
89	}
90
91	/**
92	* Prints out the contents of specified buffer structures,
93	* and clears the string.
94	*/
95	void
96	flush_output_element (const object pl, Output_Buf outputs)
97	{
98	char tbuf[MAX_BUF];
99
100	if (outputs->buf == NULL)
101	return;
102	if (outputs->count > 1)
103	{
104	snprintf (tbuf, MAX_BUF, "%d times %s", outputs->count, &outputs->buf);
105	print_message (NDI_BLACK, pl, tbuf);
106	}
107	else
108	print_message (NDI_BLACK, pl, &outputs->buf);
109
110	outputs->buf = NULL;
111	outputs->first_update = 0; /* This way, it will be reused */
112	}
113
114	/**
115	* Sends message to player through output buffers.
116	* \param pl player to send message
117	* \param buf message to send
118	*
119	* If player's output_count is 1, sends message directly.
120	*
121	* Else checks output buffers for specified message.
122	*
123	* If found, checks if message should be sent now.
124	*
125	* If message not already in buffers, flushes olders buffer,
126	* and adds message to queue.
127	*/
128	static void
129	check_output_buffers (const object pl, const char buf)
130	{
131	int i, oldest = 0;
132
133	if (pl->contr->outputs_count < 2)
134	{
135	print_message (NDI_BLACK, pl, buf);
136	return;
137	}
138	else
139	{
140	for (i = 0; i < NUM_OUTPUT_BUFS; i++)
141	{
142	if (pl->contr->outputs[i].buf && !strcmp (buf, pl->contr->outputs[i].buf))
143	break;
144	else if (pl->contr->outputs[i].first_update < pl->contr->outputs[oldest].first_update)
145	oldest = i;
146	}
147	/* We found a match */
148	if (i < NUM_OUTPUT_BUFS)
149	{
150	pl->contr->outputs[i].count++;
151	if (pl->contr->outputs[i].count >= pl->contr->outputs_count)
152	{
153	flush_output_element (pl, &pl->contr->outputs[i]);
154	}
155	}
156	/* No match - flush the oldest, and put the new one in */
157	else
158	{
159	flush_output_element (pl, &pl->contr->outputs[oldest]);
160
161	pl->contr->outputs[oldest].first_update = pticks;
162	pl->contr->outputs[oldest].count = 1;
163	pl->contr->outputs[oldest].buf = buf;
164	}
165	}
166	}
167
168	/**
169	* Sends message to player(s).
170	*
171	* flags is various flags - mostly color, plus a few specials.
172	*
173	* pri is priority. It is a little odd - the lower the value, the more
174	* important it is. Thus, 0 gets sent no matter what. Otherwise, the
175	* value must be less than the listening level that the player has set.
176	* Unfortunately, there is no clear guideline on what each level does what.
177	*
178	* pl can be passed as NULL - in fact, this will be done if NDI_ALL is set
179	* in the flags.
180	*
181	* If message is black, and not NDI_UNIQUE, gets sent through output buffers.
182	*
183	*/
184
185	void
186	new_draw_info (int flags, int pri, const object pl, const char buf)
187	{
188	if (flags & NDI_ALL)
189	{
190	for_all_players (pl)
191	new_draw_info (flags & ~NDI_ALL, pri, pl->ob, buf);
192
193	return;
194	}
195
196	if (!pl \|\| pl->type != PLAYER \|\| !pl->contr \|\| !pl->contr->ns)
197	return;
198
199	if (pri >= pl->contr->listening)
200	return;
201
202	if ((flags & NDI_COLOR_MASK) == NDI_BLACK && !(flags & NDI_UNIQUE))
203	check_output_buffers (pl, buf);
204	else
205	print_message (flags & NDI_COLOR_MASK, pl, buf);
206	}
207
208	/**
209	* Wrapper for new_draw_info printf-like.
210	*
211	* This is a pretty trivial function, but it allows us to use printf style
212	* formatting, so instead of the calling function having to do it, we do
213	* it here. It may also have advantages in the future for reduction of
214	* client/server bandwidth (client could keep track of various strings
215	*/
216	void
217	new_draw_info_format (int flags, int pri, const object pl, const char format, ...)
218	{
219	char buf[HUGE_BUF];
220
221	va_list ap;
222	va_start (ap, format);
223	vsnprintf (buf, HUGE_BUF, format, ap);
224	va_end (ap);
225
226	new_draw_info (flags, pri, pl, buf);
227	}
228
229	void
230	draw_ext_info (int flags, int pri, const object pl, uint8 type, uint8 subtype, const char message, const char *oldmessage)
231	{
232
233	if (!pl \|\| (pl->type != PLAYER) \|\| (pl->contr == NULL))
234	return;
235
236	if (pri >= pl->contr->listening)
237	return;
238
239	if (!CLIENT_SUPPORT_READABLES (pl->contr->ns, type))
240	{
241	char buf = (char ) malloc (strlen (oldmessage == NULL ? message : oldmessage) + 1);
242
243	if (buf == NULL)
244	LOG (llevError, "info::draw_ext_info -> Out of memory!");
245	else
246	{
247	strcpy (buf, oldmessage == NULL ? message : oldmessage);
248	strip_media_tag (buf);
249	new_draw_info (flags, pri, pl, buf);
250	free (buf);
251	}
252	}
253	else
254	esrv_print_ext_msg (pl->contr->ns, flags & NDI_COLOR_MASK, type, subtype, message);
255	}
256
257	void
258	draw_ext_info_format (int flags, int pri, const object pl, uint8 type, uint8 subtype, const char old_format, char *new_format, ...)
259	{
260	char buf[HUGE_BUF];
261
262	if (!pl \|\| (pl->type != PLAYER) \|\| (pl->contr == NULL))
263	return;
264
265	if (pri >= pl->contr->listening)
266	return;
267
268	if (!CLIENT_SUPPORT_READABLES (pl->contr->ns, type))
269	{
270	va_list ap;
271
272	LOG (llevDebug, "Non supported extension text type for client.\n");
273	va_start (ap, new_format);
274	vsnprintf (buf, HUGE_BUF, old_format, ap);
275	va_end (ap);
276	new_draw_info (flags, pri, pl, buf);
277	return;
278	}
279	else
280	{
281	va_list ap;
282
283	va_start (ap, new_format);
284	vsnprintf (buf, HUGE_BUF, new_format, ap);
285	va_end (ap);
286	strip_media_tag (buf);
287	esrv_print_ext_msg (pl->contr->ns, flags & NDI_COLOR_MASK, type, subtype, buf);
288	}
289	}
290
291	/**
292	* Writes to everyone on the map except op. This is useful for emotions.
293	*/
294
295	void
296	new_info_map_except (int color, maptile * map, object op, const char str)
297	{
298	for_all_players (pl)
299	if (pl->ob != NULL && pl->ob->map == map && pl->ob != op)
300	new_draw_info (color, 0, pl->ob, str);
301	}
302
303	/**
304	* Writes to everyone on the map except op1 and op2
305	*/
306
307	void
308	new_info_map_except2 (int color, maptile * map, object op1, object op2, const char *str)
309	{
310	for_all_players (pl)
311	if (pl->ob != NULL && pl->ob->map == map && pl->ob != op1 && pl->ob != op2)
312	new_draw_info (color, 0, pl->ob, str);
313	}
314
315	/**
316	* Writes to everyone on the specified map
317	*/
318
319	void
320	new_info_map (int color, maptile * map, const char *str)
321	{
322	for_all_players (pl)
323	if (pl->ob != NULL && pl->ob->map == map)
324	new_draw_info (color, 0, pl->ob, str);
325	}
326
327	/**
328	* This does nothing now. However, in theory, we should probably send
329	* something to the client and let the client figure out how it might want
330	* to handle this
331	*/
332	void
333	clear_win_info (object *op)
334	{
335	}
336
337	/**
338	* Get player's current range attack in obuf.
339	*/
340	void
341	rangetostring (object pl, char obuf)
342	{
343	switch (pl->contr->shoottype)
344	{
345	case range_none:
346	strcpy (obuf, "Range: nothing");
347	break;
348
349	case range_bow:
350	{
351	object *op;
352
353	for (op = pl->inv; op; op = op->below)
354	if (op->type == BOW && QUERY_FLAG (op, FLAG_APPLIED))
355	break;
356
357	if (op == NULL)
358	break;
359
360	sprintf (obuf, "Range: %s (%s)", query_base_name (op, 0), op->race ? (const char *) op->race : "nothing");
361	}
362	break;
363
364	case range_magic:
365	if (settings.casting_time == TRUE)
366	{
367	if (pl->casting_time > -1)
368	{
369	if (pl->casting_time == 0)
370	sprintf (obuf, "Range: Holding spell (%s)", &pl->spell->name);
371	else
372	sprintf (obuf, "Range: Casting spell (%s)", &pl->spell->name);
373	}
374	else
375	sprintf (obuf, "Range: spell (%s)", &pl->contr->ranges[range_magic]->name);
376	}
377	else
378	sprintf (obuf, "Range: spell (%s)", &pl->contr->ranges[range_magic]->name);
379	break;
380
381	case range_misc:
382	sprintf (obuf, "Range: %s", pl->contr->ranges[range_misc] ? query_base_name (pl->contr->ranges[range_misc], 0) : "none");
383	break;
384
385	/* range_scroll is only used for controlling golems. If the
386	* the player does not have a golem, reset some things.
387	*/
388	case range_golem:
389	if (pl->contr->ranges[range_golem] != NULL)
390	sprintf (obuf, "Range: golem (%s)", &pl->contr->ranges[range_golem]->name);
391	else
392	{
393	pl->contr->shoottype = range_none;
394	strcpy (obuf, "Range: nothing");
395	}
396	break;
397
398	case range_skill:
399	sprintf (obuf, "Skill: %s", pl->chosen_skill != NULL ? (const char *) pl->chosen_skill->name : "none");
400	break;
401
402	case range_builder:
403	sprintf (obuf, "Builder: %s", query_base_name (pl->contr->ranges[range_builder], 0));
404	break;
405
406	default:
407	strcpy (obuf, "Range: illegal");
408	}
409	}
410
411	/**
412	* Sets player title.
413	*/
414	void
415	set_title (object pl, char buf)
416	{
417	/* Eneq(@csd.uu.se): Let players define their own titles. */
418	if (pl->contr->own_title[0] == '\0')
419	sprintf (buf, "Player: %s the %s", (const char ) pl->name, (const char ) pl->contr->title);
420	else
421	sprintf (buf, "Player: %s %s", (const char ) pl->name, (const char ) pl->contr->own_title);
422	}
423
424	// formerly a macro, used only by magic map, so optimised it out
425	static inline faceidx
426	GET_MAP_FACE (maptile *m, int x, int y, int layer)
427	{
428	if (object *op = GET_MAP_FACE_OBJ (m, x, y, layer))
429	return op->face;
430	else
431	return 0;
432	}
433
434	/**
435	* Helper for magic map creation.
436	*
437	* Takes a player, the map_mark array and an x and y starting position.
438	* pl is the player.
439	* px, py are offsets from the player.
440	*
441	* This function examines all the adjacant spaces next to px, py.
442	* It updates the map_mark arrow with the color and high bits set
443	* for various code values.
444	*/
445	static void
446	magic_mapping_mark_recursive (object pl, char map_mark, int px, int py)
447	{
448	int x, y, dx, dy, mflags;
449	sint16 nx, ny;
450	maptile *mp;
451
452	for (dx = -1; dx <= 1; dx++)
453	{
454	for (dy = -1; dy <= 1; dy++)
455	{
456	x = px + dx;
457	y = py + dy;
458
459	if (FABS (x) >= MAGIC_MAP_HALF \|\| FABS (y) >= MAGIC_MAP_HALF)
460	continue;
461
462	mp = pl->map;
463	nx = pl->x + x;
464	ny = pl->y + y;
465
466	mflags = get_map_flags (pl->map, &mp, nx, ny, &nx, &ny);
467	if (mflags & P_OUT_OF_MAP)
468	continue;
469
470	if (map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] == 0)
471	{
472	int f = GET_MAP_FACE (mp, nx, ny, 0);
473	if (f == blank_face)
474	{
475	f = GET_MAP_FACE (mp, nx, ny, 1);
476	if (f == blank_face)
477	f = GET_MAP_FACE (mp, nx, ny, 2);
478	}
479
480	int magicmap = faces [f].magicmap;
481
482	/* Should probably have P_NO_MAGIC here also, but then shops don't
483	* work.
484	*/
485	if (mflags & P_BLOCKSVIEW)
486	map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] = FACE_WALL \| magicmap;
487	else
488	{
489	map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] = FACE_FLOOR \| magicmap;
490	magic_mapping_mark_recursive (pl, map_mark, x, y);
491	}
492	}
493	}
494	}
495	}
496
497	/**
498	* Creates magic map for player.
499	*
500	* Note: For improved magic mapping display, the space that blocks
501	* the view is now marked with value 2. Any dependencies of map_mark
502	* being nonzero have been changed to check for 1. Also, since
503	* map_mark is a char value, putting 2 in should cause no problems.
504	*
505	* This function examines the map the player is on, and determines what
506	* is visible. 2 is set for walls or objects that blocks view. 1
507	* is for open spaces. map_mark should already have been initialised
508	* to zero before this is called.
509	* strength is an initial strength*2 rectangular area that we automatically
510	* see in/penetrate through.
511	*/
512	void
513	magic_mapping_mark (object pl, char map_mark, int strength)
514	{
515	int x, y, mflags;
516	sint16 nx, ny;
517	maptile *mp;
518
519	for (x = -strength; x < strength; x++)
520	{
521	for (y = -strength; y < strength; y++)
522	{
523	mp = pl->map;
524	nx = pl->x + x;
525	ny = pl->y + y;
526
527	mflags = get_map_flags (pl->map, &mp, nx, ny, &nx, &ny);
528	if (mflags & P_OUT_OF_MAP)
529	continue;
530
531	int f = GET_MAP_FACE (mp, nx, ny, 0);
532	if (f == blank_face)
533	{
534	f = GET_MAP_FACE (mp, nx, ny, 1);
535	if (f == blank_face)
536	f = GET_MAP_FACE (mp, nx, ny, 2);
537	}
538
539	int magicmap = faces [f].magicmap;
540
541	if (mflags & P_BLOCKSVIEW)
542	map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] = FACE_WALL \| magicmap;
543	else
544	{
545	map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE * (MAGIC_MAP_HALF + y)] = FACE_FLOOR \| magicmap;
546	magic_mapping_mark_recursive (pl, map_mark, x, y);
547	}
548	}
549	}
550	}
551
552	/**
553	* Creates and sends magic map to player.
554	*
555	* The following function is a lot messier than it really should be,
556	* but there is no real easy solution.
557	*
558	* Mark Wedel
559	*/
560	void
561	draw_magic_map (object *pl)
562	{
563	char map_mark = (char )calloc (MAGIC_MAP_SIZE * MAGIC_MAP_SIZE, 1);
564	int xmin, xmax, ymin, ymax;
565
566	if (pl->type != PLAYER)
567	{
568	LOG (llevError, "Non player object called draw_map.\n");
569	return;
570	}
571
572	/* First, we figure out what spaces are 'reachable' by the player */
573	magic_mapping_mark (pl, map_mark, 3);
574
575	/* We now go through and figure out what spaces have been
576	* marked, and thus figure out rectangular region we send
577	* to the client (eg, if only a 10x10 area is visible, we only
578	* want to send those 100 spaces.)
579	*/
580	xmin = MAGIC_MAP_SIZE;
581	ymin = MAGIC_MAP_SIZE;
582	xmax = 0;
583	ymax = 0;
584
585	for (int x = 0; x < MAGIC_MAP_SIZE; x++)
586	for (int y = 0; y < MAGIC_MAP_SIZE; y++)
587	if (map_mark[x + pl->map->width * y] \| FACE_FLOOR)
588	{
589	xmin = x < xmin ? x : xmin;
590	xmax = x > xmax ? x : xmax;
591	ymin = y < ymin ? y : ymin;
592	ymax = y > ymax ? y : ymax;
593	}
594
595	packet sl;
596	sl.printf ("magicmap %d %d %d %d ", (xmax - xmin + 1), (ymax - ymin + 1),
597	MAGIC_MAP_HALF - xmin, MAGIC_MAP_HALF - ymin);
598
599	for (int y = ymin; y <= ymax; y++)
600	for (int x = xmin; x <= xmax; x++)
601	sl << uint8 (map_mark[x + MAGIC_MAP_SIZE * y] & ~FACE_FLOOR);
602
603	pl->contr->ns->send_packet (sl);
604
605	free (map_mark);
606	}
607
608	/**
609	* Send a kill log record to sockets
610	*/
611	void
612	Log_Kill (const char Who, const char What, int WhatType, const char *With, int WithType)
613	{
614	size_t len;
615	char buf[MAX_BUF];
616
617	if (With != NULL)
618	snprintf (buf, MAX_BUF, "%s\t%s\t%d\t%s\t%d\n", Who, What, WhatType, With, WithType);
619	else
620	snprintf (buf, MAX_BUF, "%s\t%s\t%d\n", Who, What, WhatType);
621
622	len = strlen (buf);
623	}
624