server/socket/item.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 author can be reached via e-mail to <crossfire@schmorp.de>
*/

/**
 * \file
 * Client/server logic.
 *
 * \date 2003-12-02
 *
 * This containes item logic for client/server.  It doesn't contain
 * the actual commands that send the data, but does contain
 * the logic for what items should be sent.
 */

#include <global.h>
#include <object.h>             /* LOOK_OBJ */
#include <sproto.h>

/** This is the maximum number of bytes we expect any one item to take up */
#define MAXITEMLEN  300

/*******************************************************************************
 *
 * Functions related to sending object data to the client.
 *
 ******************************************************************************/

/**
 *  This is a similar to query_name, but returns flags
 *  to be sent to client. 
 */
unsigned int
query_flags (object *op)
{
  unsigned int flags = 0;

  if (QUERY_FLAG (op, FLAG_APPLIED))
    {
      switch (op->type)
        {
          case BOW:
          case WAND:
          case ROD:
          case HORN:
            flags = a_readied;
            break;
          case WEAPON:
            flags = a_wielded;
            break;
          case SKILL:
          case ARMOUR:
          case HELMET:
          case SHIELD:
          case RING:
          case BOOTS:
          case GLOVES:
          case AMULET:
          case GIRDLE:
          case BRACERS:
          case CLOAK:
            flags = a_worn;
            break;
          case CONTAINER:
            flags = a_active;
            break;
          default:
            flags = a_applied;
            break;
        }
    }

  if (op->type == CONTAINER && ((op->env && op->env->container == op) || (!op->env && QUERY_FLAG (op, FLAG_APPLIED))))
    flags |= F_OPEN;

  if (QUERY_FLAG (op, FLAG_KNOWN_CURSED))
    {
      if (QUERY_FLAG (op, FLAG_DAMNED))
        flags |= F_DAMNED;
      else if (QUERY_FLAG (op, FLAG_CURSED))
        flags |= F_CURSED;
    }

  if (QUERY_FLAG (op, FLAG_KNOWN_MAGICAL) && !QUERY_FLAG (op, FLAG_IDENTIFIED))
    flags |= F_MAGIC;
  if (QUERY_FLAG (op, FLAG_UNPAID))
    flags |= F_UNPAID;
  if (QUERY_FLAG (op, FLAG_INV_LOCKED))
    flags |= F_LOCKED;

  return flags;
}

/* Used in the send_look to put object head into packet
 * sl for socket ns.  Need socket to know if we need to send
 * animation of face to the client.
 */
static void
add_object_to_socklist (client &ns, packet &sl, object *head)
{
  int flags, len, anim_speed;
  char item_n[MAX_BUF];
  const char *item_p;

  flags = query_flags (head);
  if (QUERY_FLAG (head, FLAG_NO_PICK))
    flags |= F_NOPICK;

  if (!(ns.faces_sent[head->face->number] & NS_FACESENT_FACE))
    esrv_send_face (&ns, head->face->number, 0);

  if (QUERY_FLAG (head, FLAG_ANIMATE) && !ns.anims_sent[head->animation_id])
    esrv_send_animation (&ns, head->animation_id);

  sl << uint32 (head->count)
     << uint32 (flags)
     << uint32 (QUERY_FLAG (head, FLAG_NO_PICK) ? -1 : WEIGHT (head))
     << uint32 (head->face->number);

  if (!head->custom_name)
    {
      strncpy (item_n, query_base_name (head, 0), 127);
      item_n[127] = 0;
      len = strlen (item_n);
      item_p = query_base_name (head, 1);
    }
  else
    {
      strncpy (item_n, head->custom_name, 127);
      item_n[127] = 0;
      len = strlen (item_n);
      item_p = head->custom_name;
    }

  strncpy (item_n + len + 1, item_p, 127);
  item_n[254] = 0;
  len += strlen (item_n + 1 + len) + 1;

  sl << data8 (item_n, len)
     << uint16 (head->animation_id);

  anim_speed = 0;
  if (QUERY_FLAG (head, FLAG_ANIMATE))
    {
      if (head->anim_speed)
        anim_speed = head->anim_speed;
      else
        {
          if (FABS (head->speed) < 0.001)
            anim_speed = 255;
          else if (FABS (head->speed) >= 1.0)
            anim_speed = 1;
          else
            anim_speed = (int) (1.0 / FABS (head->speed));
        }

      if (anim_speed > 255)
        anim_speed = 255;
    }

  sl << uint8  (anim_speed)
     << uint32 (head->nrof);

  if (ns.itemcmd == 2)
    sl << uint16 (head->client_type);

  SET_FLAG (head, FLAG_CLIENT_SENT);
}


/**
 * Send the look window. Don't need to do animations here 
 * This sends all the faces to the client, not just updates. This is
 * because object ordering would otherwise be inconsistent.
 */
void
esrv_draw_look (object *pl)
{
  object *tmp, *last;
  int got_one = 0, start_look = 0, end_look = 0;
  char buf[MAX_BUF];

  if (!pl->contr->socket->update_look)
    {
      LOG (llevDebug, "esrv_draw_look called when update_look was not set\n");
      return;
    }
  else
    pl->contr->socket->update_look = 0;

  if (QUERY_FLAG (pl, FLAG_REMOVED)
      || !pl->map
      || pl->map->in_memory != MAP_IN_MEMORY
      || out_of_map (pl->map, pl->x, pl->y))
    return;

  for (tmp = get_map_ob (pl->map, pl->x, pl->y); tmp && tmp->above; tmp = tmp->above)
    ;

  packet sl;

  pl->contr->socket->send_packet ("delinv 0");

  sl.printf ("item%d ", pl->contr->socket->itemcmd);

  sl << uint32 (0);

  if (!(pl->contr->socket->faces_sent[empty_face->number] & NS_FACESENT_FACE))
    esrv_send_face (pl->contr->socket, empty_face->number, 0);

  if (pl->contr->socket->look_position)
    {
      char buf[80];
      snprintf (buf, 80, "Apply this to see %d previous items", NUM_LOOK_OBJECTS);

      sl << uint32 (0x80000000 | (pl->contr->socket->look_position - NUM_LOOK_OBJECTS))
         << uint32 (0)
         << sint32 (-1)
         << uint32 (empty_face->number)
         << data8 (buf)
         << uint16 (0)
         << uint8  (0)
         << uint32 (0);

      if (pl->contr->socket->itemcmd == 2)
        sl << uint16 (0);
    }

  for (last = NULL; tmp != last; tmp = tmp->below)
    {
      object *head;

      if (QUERY_FLAG (tmp, FLAG_IS_FLOOR) && !last)
        {
          last = tmp->below;    /* assumes double floor mode */
          if (last && QUERY_FLAG (last, FLAG_IS_FLOOR))
            last = last->below;
        }

      if (LOOK_OBJ (tmp))
        {
          if (++start_look < pl->contr->socket->look_position)
            continue;

          end_look++;

          if (end_look > NUM_LOOK_OBJECTS)
            {
              /* What we basically do is make a 'fake' object - when the user applies it,
               * we notice the special tag the object has, and act accordingly.
               */
              sl << uint32 (0x80000000 | (pl->contr->socket->look_position + NUM_LOOK_OBJECTS))
                 << uint32 (0)
                 << uint32 ((uint32) - 1)
                 << uint32 (empty_face->number)
                 << data8  ("Apply this to see next group of items")
                 << uint16 (0)
                 << uint8  (0)
                 << uint32 (0);

              if (pl->contr->socket->itemcmd == 2)
                sl << uint16 (0);

              break;
            }

          if (tmp->head)
            head = tmp->head;
          else
            head = tmp;

          add_object_to_socklist (*pl->contr->socket, sl, head);
          got_one++;

          if (sl.length () >= (MAXSOCKBUF - MAXITEMLEN))
            {
              pl->contr->socket->send_packet (sl);

              sl.reset ();
              sl.printf ("item%d ", pl->contr->socket->itemcmd);
              sl << uint32 (0);
              got_one = 0;
            }
        }
    }
  
  if (got_one)
    pl->contr->socket->send_packet (sl);

}

/**
 * Sends whole inventory.
 */
void
esrv_send_inventory (object *pl, object *op)
{
  object *tmp;
  int got_one = 0;

  packet sl;

  sl.printf ("delinv %d", op->count);
  pl->contr->socket->send_packet (sl);

  sl.reset ();
  sl.printf ("item%d ", pl->contr->socket->itemcmd);

  sl << uint32 (op->count);

  for (tmp = op->inv; tmp; tmp = tmp->below)
    {
      object *head;

      if (tmp->head)
        head = tmp->head;
      else
        head = tmp;

      if (LOOK_OBJ (head))
        {
          add_object_to_socklist (*pl->contr->socket, sl, head);

          got_one++;

          /* IT is possible for players to accumulate a huge amount of
           * items (especially with some of the bags out there) to
           * overflow the buffer.  IF so, send multiple item commands.
           */
          if (sl.length () >= (MAXSOCKBUF - MAXITEMLEN))
            {
              pl->contr->socket->send_packet (sl);

              sl.reset ();
              sl.printf ("item%d ", pl->contr->socket->itemcmd);
              sl << uint32 (op->count);
              got_one = 0;
            }
        }                       /* If LOOK_OBJ() */
    }

  if (got_one)
    pl->contr->socket->send_packet (sl);
}

/**
 * Updates object *op for player *pl.
 *
 * flags is a list of values to update
 * to the client (as defined in newclient.h - might as well use the
 * same value both places.
 */

void
esrv_update_item (int flags, object *pl, object *op)
{
  /* If we have a request to send the player item, skip a few checks. */
  if (op != pl)
    {
      if (!LOOK_OBJ (op))
        return;
      /* we remove the check for op->env, because in theory, the object
       * is hopefully in the same place, so the client should preserve
       * order.
       */
    }

  if (!QUERY_FLAG (op, FLAG_CLIENT_SENT))
    {
      /* FLAG_CLIENT_SENT is debug only.  We are using it to see where
       * this is happening - we can set a breakpoint here in the debugger
       * and track back the call.
       */
      LOG (llevDebug, "We have not sent item %s (%d)\n", &op->name, op->count);
    }

  packet sl;

  sl << "upditem "
     << uint8 (flags);

  if (op->head)
    op = op->head;

  sl << uint32 (op->count);

  if (flags & UPD_LOCATION)
    sl << uint32 (op->env ? op->env->count : 0);

  if (flags & UPD_FLAGS)
    sl << uint32 (query_flags (op));

  if (flags & UPD_WEIGHT)
    {
      sint32 weight = WEIGHT (op);

      sl << uint32 (QUERY_FLAG (op, FLAG_NO_PICK) ? -1 : weight);

      if (pl == op)
        op->contr->last_weight = weight;
    }

  if (flags & UPD_FACE)
    {
      if (!(pl->contr->socket->faces_sent[op->face->number] & NS_FACESENT_FACE))
        esrv_send_face (pl->contr->socket, op->face->number, 0);

      sl << uint32 (op->face->number);
    }

  if (flags & UPD_NAME)
    {
      int len;
      const char *item_p;
      char item_n[MAX_BUF];

      if (!op->custom_name)
        {
          strncpy (item_n, query_base_name (op, 0), 127);
          item_n[127] = 0;
          len = strlen (item_n);
          item_p = query_base_name (op, 1);
        }
      else
        {
          strncpy (item_n, op->custom_name, 127);
          item_n[127] = 0;
          len = strlen (item_n);
          item_p = op->custom_name;
        }

      strncpy (item_n + len + 1, item_p, 127);
      item_n[254] = 0;
      len += strlen (item_n + 1 + len) + 1;

      sl << data8 (item_n, len);
    }

  if (flags & UPD_ANIM)
    sl << uint16 (op->animation_id);

  if (flags & UPD_ANIMSPEED)
    {
      int anim_speed = 0;

      if (QUERY_FLAG (op, FLAG_ANIMATE))
        {
          if (op->anim_speed)
            anim_speed = op->anim_speed;
          else
            {
              if (FABS (op->speed) < 0.001)
                anim_speed = 255;
              else if (FABS (op->speed) >= 1.0)
                anim_speed = 1;
              else
                anim_speed = (int) (1.0 / FABS (op->speed));
            }

          if (anim_speed > 255)
            anim_speed = 255;
        }

      sl << uint8  (anim_speed);
    }

  if (flags & UPD_NROF)
    sl << uint32 (op->nrof);

  pl->contr->socket->send_packet (sl);
}

/**
 * Sends item's info to player.
 */
void
esrv_send_item (object *pl, object *op)
{
  /* If this is not the player object, do some more checks */
  if (op != pl)
    {
      /* We only send 'visibile' objects to the client */
      if (!LOOK_OBJ (op))
        return;
      /* if the item is on the ground, mark that the look needs to
       * be updated.
       */
      if (!op->env)
        {
          pl->contr->socket->update_look = 1;
          return;
        }
    }

  packet sl;

  sl.printf ("item%d ", pl->contr->socket->itemcmd);

  if (op->head)
    op = op->head;

  sl << uint32 (op->env ? op->env->count : 0);

  add_object_to_socklist (*pl->contr->socket, sl, op);

  pl->contr->socket->send_packet (sl);
  SET_FLAG (op, FLAG_CLIENT_SENT);
}

/**
 * Tells the client to delete an item.  Uses the item
 * command with a -1 location.
 */

void
esrv_del_item (player *pl, int tag)
{
  packet sl;

  sl << "delitem "
     << uint32 (tag);

  pl->socket->send_packet (sl);
}


/*******************************************************************************
 *
 * Client has requested us to do something with an object.
 *
 ******************************************************************************/

/**
 * Takes a player and object count (tag) and returns the actual object
 * pointer, or null if it can't be found.
 */

object *
esrv_get_ob_from_count (object *pl, tag_t count)
{
  object *op, *tmp;

  if (pl->count == count)
    return pl;

  for (op = pl->inv; op; op = op->below)
    if (op->count == count)
      return op;
    else if (op->type == CONTAINER && pl->container == op)
      for (tmp = op->inv; tmp; tmp = tmp->below)
        if (tmp->count == count)
          return tmp;

  for (op = get_map_ob (pl->map, pl->x, pl->y); op; op = op->above)
    if (op->head && op->head->count == count)
      return op;
    else if (op->count == count)
      return op;
    else if (op->type == CONTAINER && pl->container == op)
      for (tmp = op->inv; tmp; tmp = tmp->below)
        if (tmp->count == count)
          return tmp;

  return 0;
}


/** Client wants to examine some object.  So lets do so. */
void
ExamineCmd (char *buf, int len, player *pl)
{
  tag_t tag = atoi (buf);

  /* If the high bit is set, player examined a pseudo object. */
  if (tag & 0x80000000)
    return;

  object *op = esrv_get_ob_from_count (pl->ob, tag);

  if (!op)
    {
      LOG (llevDebug, "Player '%s' tried to examine the unknown object (%ld)\n", &pl->ob->name, tag);
      return;
    }

  examine (pl->ob, op);
}

/** Client wants to apply some object. Lets do so. */
void
ApplyCmd (char *buf, int len, player *pl)
{
  tag_t tag = atoi (buf);

  /* sort of a hack, but if the player saves and the player then manually
   * applies a savebed (or otherwise tries to do stuff), we run into trouble.
   */
  if (QUERY_FLAG (pl->ob, FLAG_REMOVED))
    return;

  /* If the high bit is set, player applied a pseudo object. */
  if (tag & 0x80000000)
    {
      pl->socket->look_position = tag & 0x7fffffff;
      pl->socket->update_look = 1;
      return;
    }

  object *op = esrv_get_ob_from_count (pl->ob, tag);

  if (!op)
    {
      LOG (llevDebug, "Player '%s' tried to apply the unknown object (%d)\n", &pl->ob->name, tag);
      return;
    }

  player_apply (pl->ob, op, 0, 0);
}

/** Client wants to apply some object.  Lets do so. */
void
LockItem (char *data, int len, player *pl)
{
  int flag = data[0];
  tag_t tag = net_uint32 ((uint8 *)data + 1);
  object *op = esrv_get_ob_from_count (pl->ob, tag);

  if (!op)
    {
      new_draw_info (NDI_UNIQUE, 0, pl->ob, "Could not find object to lock/unlock");
      return;
    }

  if (!flag)
    CLEAR_FLAG (op, FLAG_INV_LOCKED);
  else
    SET_FLAG (op, FLAG_INV_LOCKED);

  esrv_update_item (UPD_FLAGS, pl->ob, op);
}

/** Client wants to apply some object.  Lets do so. */
void
MarkItem (char *data, int len, player *pl)
{
  tag_t tag = net_uint32 ((uint8 *)data);
  object *op = esrv_get_ob_from_count (pl->ob, tag);

  if (!op)
    {
      new_draw_info (NDI_UNIQUE, 0, pl->ob, "Could not find object to mark");
      return;
    }

  pl->mark = op;
  new_draw_info_format (NDI_UNIQUE, 0, pl->ob, "Marked item %s", query_name (op));
}

/**
 * look_at prints items on the specified square.
 *
 * [ removed EARTHWALL check and added check for containers inventory.
 *   Tero.Haatanen@lut.fi ]
 */
void
look_at (object *op, int dx, int dy)
{
  object *tmp;
  int flag = 0;
  sint16 x, y;
  maptile *m;

  x = op->x + dx;
  y = op->y + dy;

  if (out_of_map (op->map, x, y))
    return;

  m = get_map_from_coord (op->map, &x, &y);
  if (!m)
    return;

  for (tmp = get_map_ob (m, x, y); tmp != NULL && tmp->above != NULL; tmp = tmp->above);

  for (; tmp != NULL; tmp = tmp->below)
    {
      if (tmp->invisible && !QUERY_FLAG (op, FLAG_WIZ))
        continue;

      if (!flag)
        {
          if (dx || dy)
            new_draw_info (NDI_UNIQUE, 0, op, "There you see:");
          else
            {
              clear_win_info (op);
              new_draw_info (NDI_UNIQUE, 0, op, "You see:");
            }
          flag = 1;
        }

      if (QUERY_FLAG (op, FLAG_WIZ))
        new_draw_info_format (NDI_UNIQUE, 0, op, "- %s (%d).", query_name (tmp), tmp->count);
      else
        new_draw_info_format (NDI_UNIQUE, 0, op, "- %s.", query_name (tmp));

      if (((tmp->inv != NULL || (tmp->head && tmp->head->inv)) &&
           (tmp->type != CONTAINER && tmp->type != FLESH)) || QUERY_FLAG (op, FLAG_WIZ))
        inventory (op, tmp->head == NULL ? tmp : tmp->head);

      if (QUERY_FLAG (tmp, FLAG_IS_FLOOR) && !QUERY_FLAG (op, FLAG_WIZ))        /* don't continue under the floor */
        break;
    }

  if (!flag)
    {
      if (dx || dy)
        new_draw_info (NDI_UNIQUE, 0, op, "You see nothing there.");
      else
        new_draw_info (NDI_UNIQUE, 0, op, "You see nothing.");
    }
}


/** Client wants to look at some object.  Lets do so. */
void
LookAt (char *buf, int len, player *pl)
{
  int dx, dy;
  char *cp;

  dx = atoi (buf);
  if (!(cp = strchr (buf, ' ')))
    {
      return;
    }
  dy = atoi (cp);

  if (FABS (dx) > pl->socket->mapx / 2 || FABS (dy) > pl->socket->mapy / 2)
    return;

  if (pl->blocked_los[dx + pl->socket->mapx / 2][dy + pl->socket->mapy / 2])
    return;

  look_at (pl->ob, dx, dy);
}

/** Move an object to a new location */
void
esrv_move_object (object *pl, tag_t to, tag_t tag, long nrof)
{
  object *op, *env;

  op = esrv_get_ob_from_count (pl, tag);
  if (!op)
    {
      LOG (llevDebug, "Player '%s' tried to move an unknown object (%ld)\n", &pl->name, tag);
      return;
    }

  if (!to)
    {                           /* drop it to the ground */
      if (op->map && !op->env)
        return;

      /* If it is an active container, then we should drop all objects
       * in the container and not the container itself.
       */
      if (op->inv && QUERY_FLAG (op, FLAG_APPLIED))
        {
          object *current, *next;

          for (current = op->inv; current != NULL; current = next)
            {
              next = current->below;
              drop_object (pl, current, 0);
            }

          esrv_update_item (UPD_WEIGHT, pl, op);
        }
      else
        drop_object (pl, op, nrof);

      return;
    }
  else if (to == pl->count)
    {                           /* pick it up to the inventory */
      /* return if player has already picked it up */
      if (op->env == pl)
        return;

      pl->contr->count = nrof;
      pick_up (pl, op);
      return;
    }

  env = esrv_get_ob_from_count (pl, to);
  if (!env)
    {
      LOG (llevDebug, "Player '%s' tried to move object to the unknown location (%d)\n", &pl->name, to);
      return;
    }

  /* put_object_in_sack presumes that necessary sanity checking
   * has already been done (eg, it can be picked up and fits in
   * in a sack, so check for those things.  We should also check
   * an make sure env is in fact a container for that matter.
   */
  if (env->type == CONTAINER && can_pick (pl, op) && sack_can_hold (pl, env, op, nrof))
    put_object_in_sack (pl, env, op, nrof);
}

Revision:	1.24
Committed:	Sat Dec 16 22:14:42 2006 UTC (17 years, 6 months ago) by root
Content type:	text/plain
Branch:	MAIN
Changes since 1.23:	+41 -46 lines
Log Message:	just reformats
#	Content
1	/*
2	CrossFire, A Multiplayer game for X-windows
3
4	Copyright (C) 2002 Mark Wedel & Crossfire Development Team
5	Copyright (C) 1992 Frank Tore Johansen
6
7	This program is free software; you can redistribute it and/or modify
8	it under the terms of the GNU General Public License as published by
9	the Free Software Foundation; either version 2 of the License, or
10	(at your option) any later version.
11
12	This program is distributed in the hope that it will be useful,
13	but WITHOUT ANY WARRANTY; without even the implied warranty of
14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15	GNU General Public License for more details.
16
17	You should have received a copy of the GNU General Public License
18	along with this program; if not, write to the Free Software
19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20
21	The author can be reached via e-mail to <crossfire@schmorp.de>
22	*/
23
24	/**
25	* \file
26	* Client/server logic.
27	*
28	* \date 2003-12-02
29	*
30	* This containes item logic for client/server. It doesn't contain
31	* the actual commands that send the data, but does contain
32	* the logic for what items should be sent.
33	*/
34
35	#include <global.h>
36	#include <object.h> /* LOOK_OBJ */
37	#include <sproto.h>
38
39	/** This is the maximum number of bytes we expect any one item to take up */
40	#define MAXITEMLEN 300
41
42	/*******************************************************************************
43	*
44	* Functions related to sending object data to the client.
45	*
46	******************************************************************************/
47
48	/**
49	* This is a similar to query_name, but returns flags
50	* to be sent to client.
51	*/
52	unsigned int
53	query_flags (object *op)
54	{
55	unsigned int flags = 0;
56
57	if (QUERY_FLAG (op, FLAG_APPLIED))
58	{
59	switch (op->type)
60	{
61	case BOW:
62	case WAND:
63	case ROD:
64	case HORN:
65	flags = a_readied;
66	break;
67	case WEAPON:
68	flags = a_wielded;
69	break;
70	case SKILL:
71	case ARMOUR:
72	case HELMET:
73	case SHIELD:
74	case RING:
75	case BOOTS:
76	case GLOVES:
77	case AMULET:
78	case GIRDLE:
79	case BRACERS:
80	case CLOAK:
81	flags = a_worn;
82	break;
83	case CONTAINER:
84	flags = a_active;
85	break;
86	default:
87	flags = a_applied;
88	break;
89	}
90	}
91
92	if (op->type == CONTAINER && ((op->env && op->env->container == op) \|\| (!op->env && QUERY_FLAG (op, FLAG_APPLIED))))
93	flags \|= F_OPEN;
94
95	if (QUERY_FLAG (op, FLAG_KNOWN_CURSED))
96	{
97	if (QUERY_FLAG (op, FLAG_DAMNED))
98	flags \|= F_DAMNED;
99	else if (QUERY_FLAG (op, FLAG_CURSED))
100	flags \|= F_CURSED;
101	}
102
103	if (QUERY_FLAG (op, FLAG_KNOWN_MAGICAL) && !QUERY_FLAG (op, FLAG_IDENTIFIED))
104	flags \|= F_MAGIC;
105	if (QUERY_FLAG (op, FLAG_UNPAID))
106	flags \|= F_UNPAID;
107	if (QUERY_FLAG (op, FLAG_INV_LOCKED))
108	flags \|= F_LOCKED;
109
110	return flags;
111	}
112
113	/* Used in the send_look to put object head into packet
114	* sl for socket ns. Need socket to know if we need to send
115	* animation of face to the client.
116	*/
117	static void
118	add_object_to_socklist (client &ns, packet &sl, object *head)
119	{
120	int flags, len, anim_speed;
121	char item_n[MAX_BUF];
122	const char *item_p;
123
124	flags = query_flags (head);
125	if (QUERY_FLAG (head, FLAG_NO_PICK))
126	flags \|= F_NOPICK;
127
128	if (!(ns.faces_sent[head->face->number] & NS_FACESENT_FACE))
129	esrv_send_face (&ns, head->face->number, 0);
130
131	if (QUERY_FLAG (head, FLAG_ANIMATE) && !ns.anims_sent[head->animation_id])
132	esrv_send_animation (&ns, head->animation_id);
133
134	sl << uint32 (head->count)
135	<< uint32 (flags)
136	<< uint32 (QUERY_FLAG (head, FLAG_NO_PICK) ? -1 : WEIGHT (head))
137	<< uint32 (head->face->number);
138
139	if (!head->custom_name)
140	{
141	strncpy (item_n, query_base_name (head, 0), 127);
142	item_n[127] = 0;
143	len = strlen (item_n);
144	item_p = query_base_name (head, 1);
145	}
146	else
147	{
148	strncpy (item_n, head->custom_name, 127);
149	item_n[127] = 0;
150	len = strlen (item_n);
151	item_p = head->custom_name;
152	}
153
154	strncpy (item_n + len + 1, item_p, 127);
155	item_n[254] = 0;
156	len += strlen (item_n + 1 + len) + 1;
157
158	sl << data8 (item_n, len)
159	<< uint16 (head->animation_id);
160
161	anim_speed = 0;
162	if (QUERY_FLAG (head, FLAG_ANIMATE))
163	{
164	if (head->anim_speed)
165	anim_speed = head->anim_speed;
166	else
167	{
168	if (FABS (head->speed) < 0.001)
169	anim_speed = 255;
170	else if (FABS (head->speed) >= 1.0)
171	anim_speed = 1;
172	else
173	anim_speed = (int) (1.0 / FABS (head->speed));
174	}
175
176	if (anim_speed > 255)
177	anim_speed = 255;
178	}
179
180	sl << uint8 (anim_speed)
181	<< uint32 (head->nrof);
182
183	if (ns.itemcmd == 2)
184	sl << uint16 (head->client_type);
185
186	SET_FLAG (head, FLAG_CLIENT_SENT);
187	}
188
189
190	/**
191	* Send the look window. Don't need to do animations here
192	* This sends all the faces to the client, not just updates. This is
193	* because object ordering would otherwise be inconsistent.
194	*/
195	void
196	esrv_draw_look (object *pl)
197	{
198	object tmp, last;
199	int got_one = 0, start_look = 0, end_look = 0;
200	char buf[MAX_BUF];
201
202	if (!pl->contr->socket->update_look)
203	{
204	LOG (llevDebug, "esrv_draw_look called when update_look was not set\n");
205	return;
206	}
207	else
208	pl->contr->socket->update_look = 0;
209
210	if (QUERY_FLAG (pl, FLAG_REMOVED)
211	\|\| !pl->map
212	\|\| pl->map->in_memory != MAP_IN_MEMORY
213	\|\| out_of_map (pl->map, pl->x, pl->y))
214	return;
215
216	for (tmp = get_map_ob (pl->map, pl->x, pl->y); tmp && tmp->above; tmp = tmp->above)
217	;
218
219	packet sl;
220
221	pl->contr->socket->send_packet ("delinv 0");
222
223	sl.printf ("item%d ", pl->contr->socket->itemcmd);
224
225	sl << uint32 (0);
226
227	if (!(pl->contr->socket->faces_sent[empty_face->number] & NS_FACESENT_FACE))
228	esrv_send_face (pl->contr->socket, empty_face->number, 0);
229
230	if (pl->contr->socket->look_position)
231	{
232	char buf[80];
233	snprintf (buf, 80, "Apply this to see %d previous items", NUM_LOOK_OBJECTS);
234
235	sl << uint32 (0x80000000 \| (pl->contr->socket->look_position - NUM_LOOK_OBJECTS))
236	<< uint32 (0)
237	<< sint32 (-1)
238	<< uint32 (empty_face->number)
239	<< data8 (buf)
240	<< uint16 (0)
241	<< uint8 (0)
242	<< uint32 (0);
243
244	if (pl->contr->socket->itemcmd == 2)
245	sl << uint16 (0);
246	}
247
248	for (last = NULL; tmp != last; tmp = tmp->below)
249	{
250	object *head;
251
252	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR) && !last)
253	{
254	last = tmp->below; /* assumes double floor mode */
255	if (last && QUERY_FLAG (last, FLAG_IS_FLOOR))
256	last = last->below;
257	}
258
259	if (LOOK_OBJ (tmp))
260	{
261	if (++start_look < pl->contr->socket->look_position)
262	continue;
263
264	end_look++;
265
266	if (end_look > NUM_LOOK_OBJECTS)
267	{
268	/* What we basically do is make a 'fake' object - when the user applies it,
269	* we notice the special tag the object has, and act accordingly.
270	*/
271	sl << uint32 (0x80000000 \| (pl->contr->socket->look_position + NUM_LOOK_OBJECTS))
272	<< uint32 (0)
273	<< uint32 ((uint32) - 1)
274	<< uint32 (empty_face->number)
275	<< data8 ("Apply this to see next group of items")
276	<< uint16 (0)
277	<< uint8 (0)
278	<< uint32 (0);
279
280	if (pl->contr->socket->itemcmd == 2)
281	sl << uint16 (0);
282
283	break;
284	}
285
286	if (tmp->head)
287	head = tmp->head;
288	else
289	head = tmp;
290
291	add_object_to_socklist (*pl->contr->socket, sl, head);
292	got_one++;
293
294	if (sl.length () >= (MAXSOCKBUF - MAXITEMLEN))
295	{
296	pl->contr->socket->send_packet (sl);
297
298	sl.reset ();
299	sl.printf ("item%d ", pl->contr->socket->itemcmd);
300	sl << uint32 (0);
301	got_one = 0;
302	}
303	}
304	}
305
306	if (got_one)
307	pl->contr->socket->send_packet (sl);
308
309	}
310
311	/**
312	* Sends whole inventory.
313	*/
314	void
315	esrv_send_inventory (object pl, object op)
316	{
317	object *tmp;
318	int got_one = 0;
319
320	packet sl;
321
322	sl.printf ("delinv %d", op->count);
323	pl->contr->socket->send_packet (sl);
324
325	sl.reset ();
326	sl.printf ("item%d ", pl->contr->socket->itemcmd);
327
328	sl << uint32 (op->count);
329
330	for (tmp = op->inv; tmp; tmp = tmp->below)
331	{
332	object *head;
333
334	if (tmp->head)
335	head = tmp->head;
336	else
337	head = tmp;
338
339	if (LOOK_OBJ (head))
340	{
341	add_object_to_socklist (*pl->contr->socket, sl, head);
342
343	got_one++;
344
345	/* IT is possible for players to accumulate a huge amount of
346	* items (especially with some of the bags out there) to
347	* overflow the buffer. IF so, send multiple item commands.
348	*/
349	if (sl.length () >= (MAXSOCKBUF - MAXITEMLEN))
350	{
351	pl->contr->socket->send_packet (sl);
352
353	sl.reset ();
354	sl.printf ("item%d ", pl->contr->socket->itemcmd);
355	sl << uint32 (op->count);
356	got_one = 0;
357	}
358	} /* If LOOK_OBJ() */
359	}
360
361	if (got_one)
362	pl->contr->socket->send_packet (sl);
363	}
364
365	/**
366	* Updates object op for player pl.
367	*
368	* flags is a list of values to update
369	* to the client (as defined in newclient.h - might as well use the
370	* same value both places.
371	*/
372
373	void
374	esrv_update_item (int flags, object pl, object op)
375	{
376	/* If we have a request to send the player item, skip a few checks. */
377	if (op != pl)
378	{
379	if (!LOOK_OBJ (op))
380	return;
381	/* we remove the check for op->env, because in theory, the object
382	* is hopefully in the same place, so the client should preserve
383	* order.
384	*/
385	}
386
387	if (!QUERY_FLAG (op, FLAG_CLIENT_SENT))
388	{
389	/* FLAG_CLIENT_SENT is debug only. We are using it to see where
390	* this is happening - we can set a breakpoint here in the debugger
391	* and track back the call.
392	*/
393	LOG (llevDebug, "We have not sent item %s (%d)\n", &op->name, op->count);
394	}
395
396	packet sl;
397
398	sl << "upditem "
399	<< uint8 (flags);
400
401	if (op->head)
402	op = op->head;
403
404	sl << uint32 (op->count);
405
406	if (flags & UPD_LOCATION)
407	sl << uint32 (op->env ? op->env->count : 0);
408
409	if (flags & UPD_FLAGS)
410	sl << uint32 (query_flags (op));
411
412	if (flags & UPD_WEIGHT)
413	{
414	sint32 weight = WEIGHT (op);
415
416	sl << uint32 (QUERY_FLAG (op, FLAG_NO_PICK) ? -1 : weight);
417
418	if (pl == op)
419	op->contr->last_weight = weight;
420	}
421
422	if (flags & UPD_FACE)
423	{
424	if (!(pl->contr->socket->faces_sent[op->face->number] & NS_FACESENT_FACE))
425	esrv_send_face (pl->contr->socket, op->face->number, 0);
426
427	sl << uint32 (op->face->number);
428	}
429
430	if (flags & UPD_NAME)
431	{
432	int len;
433	const char *item_p;
434	char item_n[MAX_BUF];
435
436	if (!op->custom_name)
437	{
438	strncpy (item_n, query_base_name (op, 0), 127);
439	item_n[127] = 0;
440	len = strlen (item_n);
441	item_p = query_base_name (op, 1);
442	}
443	else
444	{
445	strncpy (item_n, op->custom_name, 127);
446	item_n[127] = 0;
447	len = strlen (item_n);
448	item_p = op->custom_name;
449	}
450
451	strncpy (item_n + len + 1, item_p, 127);
452	item_n[254] = 0;
453	len += strlen (item_n + 1 + len) + 1;
454
455	sl << data8 (item_n, len);
456	}
457
458	if (flags & UPD_ANIM)
459	sl << uint16 (op->animation_id);
460
461	if (flags & UPD_ANIMSPEED)
462	{
463	int anim_speed = 0;
464
465	if (QUERY_FLAG (op, FLAG_ANIMATE))
466	{
467	if (op->anim_speed)
468	anim_speed = op->anim_speed;
469	else
470	{
471	if (FABS (op->speed) < 0.001)
472	anim_speed = 255;
473	else if (FABS (op->speed) >= 1.0)
474	anim_speed = 1;
475	else
476	anim_speed = (int) (1.0 / FABS (op->speed));
477	}
478
479	if (anim_speed > 255)
480	anim_speed = 255;
481	}
482
483	sl << uint8 (anim_speed);
484	}
485
486	if (flags & UPD_NROF)
487	sl << uint32 (op->nrof);
488
489	pl->contr->socket->send_packet (sl);
490	}
491
492	/**
493	* Sends item's info to player.
494	*/
495	void
496	esrv_send_item (object pl, object op)
497	{
498	/* If this is not the player object, do some more checks */
499	if (op != pl)
500	{
501	/* We only send 'visibile' objects to the client */
502	if (!LOOK_OBJ (op))
503	return;
504	/* if the item is on the ground, mark that the look needs to
505	* be updated.
506	*/
507	if (!op->env)
508	{
509	pl->contr->socket->update_look = 1;
510	return;
511	}
512	}
513
514	packet sl;
515
516	sl.printf ("item%d ", pl->contr->socket->itemcmd);
517
518	if (op->head)
519	op = op->head;
520
521	sl << uint32 (op->env ? op->env->count : 0);
522
523	add_object_to_socklist (*pl->contr->socket, sl, op);
524
525	pl->contr->socket->send_packet (sl);
526	SET_FLAG (op, FLAG_CLIENT_SENT);
527	}
528
529	/**
530	* Tells the client to delete an item. Uses the item
531	* command with a -1 location.
532	*/
533
534	void
535	esrv_del_item (player *pl, int tag)
536	{
537	packet sl;
538
539	sl << "delitem "
540	<< uint32 (tag);
541
542	pl->socket->send_packet (sl);
543	}
544
545
546	/*******************************************************************************
547	*
548	* Client has requested us to do something with an object.
549	*
550	******************************************************************************/
551
552	/**
553	* Takes a player and object count (tag) and returns the actual object
554	* pointer, or null if it can't be found.
555	*/
556
557	object *
558	esrv_get_ob_from_count (object *pl, tag_t count)
559	{
560	object op, tmp;
561
562	if (pl->count == count)
563	return pl;
564
565	for (op = pl->inv; op; op = op->below)
566	if (op->count == count)
567	return op;
568	else if (op->type == CONTAINER && pl->container == op)
569	for (tmp = op->inv; tmp; tmp = tmp->below)
570	if (tmp->count == count)
571	return tmp;
572
573	for (op = get_map_ob (pl->map, pl->x, pl->y); op; op = op->above)
574	if (op->head && op->head->count == count)
575	return op;
576	else if (op->count == count)
577	return op;
578	else if (op->type == CONTAINER && pl->container == op)
579	for (tmp = op->inv; tmp; tmp = tmp->below)
580	if (tmp->count == count)
581	return tmp;
582
583	return 0;
584	}
585
586
587	/** Client wants to examine some object. So lets do so. */
588	void
589	ExamineCmd (char buf, int len, player pl)
590	{
591	tag_t tag = atoi (buf);
592
593	/* If the high bit is set, player examined a pseudo object. */
594	if (tag & 0x80000000)
595	return;
596
597	object *op = esrv_get_ob_from_count (pl->ob, tag);
598
599	if (!op)
600	{
601	LOG (llevDebug, "Player '%s' tried to examine the unknown object (%ld)\n", &pl->ob->name, tag);
602	return;
603	}
604
605	examine (pl->ob, op);
606	}
607
608	/** Client wants to apply some object. Lets do so. */
609	void
610	ApplyCmd (char buf, int len, player pl)
611	{
612	tag_t tag = atoi (buf);
613
614	/* sort of a hack, but if the player saves and the player then manually
615	* applies a savebed (or otherwise tries to do stuff), we run into trouble.
616	*/
617	if (QUERY_FLAG (pl->ob, FLAG_REMOVED))
618	return;
619
620	/* If the high bit is set, player applied a pseudo object. */
621	if (tag & 0x80000000)
622	{
623	pl->socket->look_position = tag & 0x7fffffff;
624	pl->socket->update_look = 1;
625	return;
626	}
627
628	object *op = esrv_get_ob_from_count (pl->ob, tag);
629
630	if (!op)
631	{
632	LOG (llevDebug, "Player '%s' tried to apply the unknown object (%d)\n", &pl->ob->name, tag);
633	return;
634	}
635
636	player_apply (pl->ob, op, 0, 0);
637	}
638
639	/** Client wants to apply some object. Lets do so. */
640	void
641	LockItem (char data, int len, player pl)
642	{
643	int flag = data[0];
644	tag_t tag = net_uint32 ((uint8 *)data + 1);
645	object *op = esrv_get_ob_from_count (pl->ob, tag);
646
647	if (!op)
648	{
649	new_draw_info (NDI_UNIQUE, 0, pl->ob, "Could not find object to lock/unlock");
650	return;
651	}
652
653	if (!flag)
654	CLEAR_FLAG (op, FLAG_INV_LOCKED);
655	else
656	SET_FLAG (op, FLAG_INV_LOCKED);
657
658	esrv_update_item (UPD_FLAGS, pl->ob, op);
659	}
660
661	/** Client wants to apply some object. Lets do so. */
662	void
663	MarkItem (char data, int len, player pl)
664	{
665	tag_t tag = net_uint32 ((uint8 *)data);
666	object *op = esrv_get_ob_from_count (pl->ob, tag);
667
668	if (!op)
669	{
670	new_draw_info (NDI_UNIQUE, 0, pl->ob, "Could not find object to mark");
671	return;
672	}
673
674	pl->mark = op;
675	new_draw_info_format (NDI_UNIQUE, 0, pl->ob, "Marked item %s", query_name (op));
676	}
677
678	/**
679	* look_at prints items on the specified square.
680	*
681	* [ removed EARTHWALL check and added check for containers inventory.
682	* Tero.Haatanen@lut.fi ]
683	*/
684	void
685	look_at (object *op, int dx, int dy)
686	{
687	object *tmp;
688	int flag = 0;
689	sint16 x, y;
690	maptile *m;
691
692	x = op->x + dx;
693	y = op->y + dy;
694
695	if (out_of_map (op->map, x, y))
696	return;
697
698	m = get_map_from_coord (op->map, &x, &y);
699	if (!m)
700	return;
701
702	for (tmp = get_map_ob (m, x, y); tmp != NULL && tmp->above != NULL; tmp = tmp->above);
703
704	for (; tmp != NULL; tmp = tmp->below)
705	{
706	if (tmp->invisible && !QUERY_FLAG (op, FLAG_WIZ))
707	continue;
708
709	if (!flag)
710	{
711	if (dx \|\| dy)
712	new_draw_info (NDI_UNIQUE, 0, op, "There you see:");
713	else
714	{
715	clear_win_info (op);
716	new_draw_info (NDI_UNIQUE, 0, op, "You see:");
717	}
718	flag = 1;
719	}
720
721	if (QUERY_FLAG (op, FLAG_WIZ))
722	new_draw_info_format (NDI_UNIQUE, 0, op, "- %s (%d).", query_name (tmp), tmp->count);
723	else
724	new_draw_info_format (NDI_UNIQUE, 0, op, "- %s.", query_name (tmp));
725
726	if (((tmp->inv != NULL \|\| (tmp->head && tmp->head->inv)) &&
727	(tmp->type != CONTAINER && tmp->type != FLESH)) \|\| QUERY_FLAG (op, FLAG_WIZ))
728	inventory (op, tmp->head == NULL ? tmp : tmp->head);
729
730	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR) && !QUERY_FLAG (op, FLAG_WIZ)) /* don't continue under the floor */
731	break;
732	}
733
734	if (!flag)
735	{
736	if (dx \|\| dy)
737	new_draw_info (NDI_UNIQUE, 0, op, "You see nothing there.");
738	else
739	new_draw_info (NDI_UNIQUE, 0, op, "You see nothing.");
740	}
741	}
742
743
744
745	/** Client wants to look at some object. Lets do so. */
746	void
747	LookAt (char buf, int len, player pl)
748	{
749	int dx, dy;
750	char *cp;
751
752	dx = atoi (buf);
753	if (!(cp = strchr (buf, ' ')))
754	{
755	return;
756	}
757	dy = atoi (cp);
758
759	if (FABS (dx) > pl->socket->mapx / 2 \|\| FABS (dy) > pl->socket->mapy / 2)
760	return;
761
762	if (pl->blocked_los[dx + pl->socket->mapx / 2][dy + pl->socket->mapy / 2])
763	return;
764
765	look_at (pl->ob, dx, dy);
766	}
767
768	/** Move an object to a new location */
769	void
770	esrv_move_object (object *pl, tag_t to, tag_t tag, long nrof)
771	{
772	object op, env;
773
774	op = esrv_get_ob_from_count (pl, tag);
775	if (!op)
776	{
777	LOG (llevDebug, "Player '%s' tried to move an unknown object (%ld)\n", &pl->name, tag);
778	return;
779	}
780
781	if (!to)
782	{ /* drop it to the ground */
783	if (op->map && !op->env)
784	return;
785
786	/* If it is an active container, then we should drop all objects
787	* in the container and not the container itself.
788	*/
789	if (op->inv && QUERY_FLAG (op, FLAG_APPLIED))
790	{
791	object current, next;
792
793	for (current = op->inv; current != NULL; current = next)
794	{
795	next = current->below;
796	drop_object (pl, current, 0);
797	}
798
799	esrv_update_item (UPD_WEIGHT, pl, op);
800	}
801	else
802	drop_object (pl, op, nrof);
803
804	return;
805	}
806	else if (to == pl->count)
807	{ /* pick it up to the inventory */
808	/* return if player has already picked it up */
809	if (op->env == pl)
810	return;
811
812	pl->contr->count = nrof;
813	pick_up (pl, op);
814	return;
815	}
816
817	env = esrv_get_ob_from_count (pl, to);
818	if (!env)
819	{
820	LOG (llevDebug, "Player '%s' tried to move object to the unknown location (%d)\n", &pl->name, to);
821	return;
822	}
823
824	/* put_object_in_sack presumes that necessary sanity checking
825	* has already been done (eg, it can be picked up and fits in
826	* in a sack, so check for those things. We should also check
827	* an make sure env is in fact a container for that matter.
828	*/
829	if (env->type == CONTAINER && can_pick (pl, op) && sack_can_hold (pl, env, op, nrof))
830	put_object_in_sack (pl, env, op, nrof);
831	}
832