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 <newclient.h>
#include <newserver.h>
#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 sended 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_socket &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 LOOK_OBJ() */
    }
  
  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 != NULL && 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 NULL;
}


/** 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 (uint8 *data, int len, player *pl)
{
  int flag = data[0];
  tag_t tag = net_uint32 (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 (uint8 * data, int len, player *pl)
{
  tag_t tag = net_uint32 (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:	1.21
Committed:	Fri Dec 15 00:34:17 2006 UTC (17 years, 5 months ago) by root
Content type:	text/plain
Branch:	MAIN
Changes since 1.20:	+9 -10 lines
Log Message:	fix bug
#	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
36	#include <global.h>
37	#include <object.h> /* LOOK_OBJ */
38	#include <newclient.h>
39	#include <newserver.h>
40	#include <sproto.h>
41
42	/** This is the maximum number of bytes we expect any one item to take up */
43	#define MAXITEMLEN 300
44
45	/*******************************************************************************
46	*
47	* Functions related to sending object data to the client.
48	*
49	******************************************************************************/
50
51	/**
52	* This is a similar to query_name, but returns flags
53	* to be sended to client.
54	*/
55	unsigned int
56	query_flags (object *op)
57	{
58	unsigned int flags = 0;
59
60	if (QUERY_FLAG (op, FLAG_APPLIED))
61	{
62	switch (op->type)
63	{
64	case BOW:
65	case WAND:
66	case ROD:
67	case HORN:
68	flags = a_readied;
69	break;
70	case WEAPON:
71	flags = a_wielded;
72	break;
73	case SKILL:
74	case ARMOUR:
75	case HELMET:
76	case SHIELD:
77	case RING:
78	case BOOTS:
79	case GLOVES:
80	case AMULET:
81	case GIRDLE:
82	case BRACERS:
83	case CLOAK:
84	flags = a_worn;
85	break;
86	case CONTAINER:
87	flags = a_active;
88	break;
89	default:
90	flags = a_applied;
91	break;
92	}
93	}
94	if (op->type == CONTAINER && ((op->env && op->env->container == op) \|\| (!op->env && QUERY_FLAG (op, FLAG_APPLIED))))
95	flags \|= F_OPEN;
96
97	if (QUERY_FLAG (op, FLAG_KNOWN_CURSED))
98	{
99	if (QUERY_FLAG (op, FLAG_DAMNED))
100	flags \|= F_DAMNED;
101	else if (QUERY_FLAG (op, FLAG_CURSED))
102	flags \|= F_CURSED;
103	}
104	if (QUERY_FLAG (op, FLAG_KNOWN_MAGICAL) && !QUERY_FLAG (op, FLAG_IDENTIFIED))
105	flags \|= F_MAGIC;
106	if (QUERY_FLAG (op, FLAG_UNPAID))
107	flags \|= F_UNPAID;
108	if (QUERY_FLAG (op, FLAG_INV_LOCKED))
109	flags \|= F_LOCKED;
110
111	return flags;
112	}
113
114	/* Used in the send_look to put object head into packet
115	* sl for socket ns. Need socket to know if we need to send
116	* animation of face to the client.
117	*/
118	static void
119	add_object_to_socklist (client_socket &ns, packet &sl, object *head)
120	{
121	int flags, len, anim_speed;
122	char item_n[MAX_BUF];
123	const char *item_p;
124
125	flags = query_flags (head);
126	if (QUERY_FLAG (head, FLAG_NO_PICK))
127	flags \|= F_NOPICK;
128
129	if (!(ns.faces_sent[head->face->number] & NS_FACESENT_FACE))
130	esrv_send_face (&ns, head->face->number, 0);
131
132	if (QUERY_FLAG (head, FLAG_ANIMATE) && !ns.anims_sent[head->animation_id])
133	esrv_send_animation (&ns, head->animation_id);
134
135	sl << uint32 (head->count)
136	<< uint32 (flags)
137	<< uint32 (QUERY_FLAG (head, FLAG_NO_PICK) ? -1 : WEIGHT (head))
138	<< uint32 (head->face->number);
139
140	if (!head->custom_name)
141	{
142	strncpy (item_n, query_base_name (head, 0), 127);
143	item_n[127] = 0;
144	len = strlen (item_n);
145	item_p = query_base_name (head, 1);
146	}
147	else
148	{
149	strncpy (item_n, head->custom_name, 127);
150	item_n[127] = 0;
151	len = strlen (item_n);
152	item_p = head->custom_name;
153	}
154
155	strncpy (item_n + len + 1, item_p, 127);
156	item_n[254] = 0;
157	len += strlen (item_n + 1 + len) + 1;
158
159	sl << data8 (item_n, len)
160	<< uint16 (head->animation_id);
161
162	anim_speed = 0;
163	if (QUERY_FLAG (head, FLAG_ANIMATE))
164	{
165	if (head->anim_speed)
166	anim_speed = head->anim_speed;
167	else
168	{
169	if (FABS (head->speed) < 0.001)
170	anim_speed = 255;
171	else if (FABS (head->speed) >= 1.0)
172	anim_speed = 1;
173	else
174	anim_speed = (int) (1.0 / FABS (head->speed));
175	}
176
177	if (anim_speed > 255)
178	anim_speed = 255;
179	}
180
181	sl << uint8 (anim_speed)
182	<< uint32 (head->nrof);
183
184	if (ns.itemcmd == 2)
185	sl << uint16 (head->client_type);
186
187	SET_FLAG (head, FLAG_CLIENT_SENT);
188	}
189
190
191	/**
192	* Send the look window. Don't need to do animations here
193	* This sends all the faces to the client, not just updates. This is
194	* because object ordering would otherwise be inconsistent
195	*/
196
197	void
198	esrv_draw_look (object *pl)
199	{
200	object tmp, last;
201	int got_one = 0, start_look = 0, end_look = 0;
202	char buf[MAX_BUF];
203
204	if (!pl->contr->socket->update_look)
205	{
206	LOG (llevDebug, "esrv_draw_look called when update_look was not set\n");
207	return;
208	}
209	else
210	pl->contr->socket->update_look = 0;
211
212	if (QUERY_FLAG (pl, FLAG_REMOVED)
213	\|\| !pl->map
214	\|\| pl->map->in_memory != MAP_IN_MEMORY
215	\|\| out_of_map (pl->map, pl->x, pl->y))
216	return;
217
218	for (tmp = get_map_ob (pl->map, pl->x, pl->y); tmp && tmp->above; tmp = tmp->above)
219	;
220
221	packet sl;
222
223	pl->contr->socket->send_packet ("delinv 0");
224
225	sl.printf ("item%d ", pl->contr->socket->itemcmd);
226
227	sl << uint32 (0);
228
229	if (!(pl->contr->socket->faces_sent[empty_face->number] & NS_FACESENT_FACE))
230	esrv_send_face (pl->contr->socket, empty_face->number, 0);
231
232	if (pl->contr->socket->look_position)
233	{
234	char buf[80];
235	snprintf (buf, 80, "Apply this to see %d previous items", NUM_LOOK_OBJECTS);
236
237	sl << uint32 (0x80000000 \| (pl->contr->socket->look_position - NUM_LOOK_OBJECTS))
238	<< uint32 (0)
239	<< sint32 (-1)
240	<< uint32 (empty_face->number)
241	<< data8 (buf)
242	<< uint16 (0)
243	<< uint8 (0)
244	<< uint32 (0);
245
246	if (pl->contr->socket->itemcmd == 2)
247	sl << uint16 (0);
248	}
249
250	for (last = NULL; tmp != last; tmp = tmp->below)
251	{
252	object *head;
253
254	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR) && !last)
255	{
256	last = tmp->below; /* assumes double floor mode */
257	if (last && QUERY_FLAG (last, FLAG_IS_FLOOR))
258	last = last->below;
259	}
260
261	if (LOOK_OBJ (tmp))
262	{
263	if (++start_look < pl->contr->socket->look_position)
264	continue;
265
266	end_look++;
267
268	if (end_look > NUM_LOOK_OBJECTS)
269	{
270	/* What we basically do is make a 'fake' object - when the user applies it,
271	* we notice the special tag the object has, and act accordingly.
272	*/
273	sl << uint32 (0x80000000 \| (pl->contr->socket->look_position + NUM_LOOK_OBJECTS))
274	<< uint32 (0)
275	<< uint32 ((uint32) - 1)
276	<< uint32 (empty_face->number)
277	<< data8 ("Apply this to see next group of items")
278	<< uint16 (0)
279	<< uint8 (0)
280	<< uint32 (0);
281
282	if (pl->contr->socket->itemcmd == 2)
283	sl << uint16 (0);
284
285	break;
286	}
287
288	if (tmp->head)
289	head = tmp->head;
290	else
291	head = tmp;
292
293	add_object_to_socklist (*pl->contr->socket, sl, head);
294	got_one++;
295
296	if (sl.length () >= (MAXSOCKBUF - MAXITEMLEN))
297	{
298	pl->contr->socket->send_packet (sl);
299
300	sl.reset ();
301	sl.printf ("item%d ", pl->contr->socket->itemcmd);
302	sl << uint32 (0);
303	got_one = 0;
304	}
305	} /* If LOOK_OBJ() */
306	}
307
308	if (got_one)
309	pl->contr->socket->send_packet (sl);
310
311	}
312
313	/**
314	* Sends whole inventory.
315	*/
316	void
317	esrv_send_inventory (object pl, object op)
318	{
319	object *tmp;
320	int got_one = 0;
321
322	packet sl;
323
324	sl.printf ("delinv %d", op->count);
325	pl->contr->socket->send_packet (sl);
326
327	sl.reset ();
328	sl.printf ("item%d ", pl->contr->socket->itemcmd);
329
330	sl << uint32 (op->count);
331
332	for (tmp = op->inv; tmp; tmp = tmp->below)
333	{
334	object *head;
335
336	if (tmp->head)
337	head = tmp->head;
338	else
339	head = tmp;
340
341	if (LOOK_OBJ (head))
342	{
343	add_object_to_socklist (*pl->contr->socket, sl, head);
344
345	got_one++;
346
347	/* IT is possible for players to accumulate a huge amount of
348	* items (especially with some of the bags out there) to
349	* overflow the buffer. IF so, send multiple item commands.
350	*/
351	if (sl.length () >= (MAXSOCKBUF - MAXITEMLEN))
352	{
353	pl->contr->socket->send_packet (sl);
354
355	sl.reset ();
356	sl.printf ("item%d ", pl->contr->socket->itemcmd);
357	sl << uint32 (op->count);
358	got_one = 0;
359	}
360	} /* If LOOK_OBJ() */
361	}
362
363	if (got_one)
364	pl->contr->socket->send_packet (sl);
365
366	}
367
368	/**
369	* Updates object op for player pl.
370	*
371	* flags is a list of values to update
372	* to the client (as defined in newclient.h - might as well use the
373	* same value both places.
374	*/
375
376	void
377	esrv_update_item (int flags, object pl, object op)
378	{
379	/* If we have a request to send the player item, skip a few checks. */
380	if (op != pl)
381	{
382	if (!LOOK_OBJ (op))
383	return;
384	/* we remove the check for op->env, because in theory, the object
385	* is hopefully in the same place, so the client should preserve
386	* order.
387	*/
388	}
389
390	if (!QUERY_FLAG (op, FLAG_CLIENT_SENT))
391	{
392	/* FLAG_CLIENT_SENT is debug only. We are using it to see where
393	* this is happening - we can set a breakpoint here in the debugger
394	* and track back the call.
395	*/
396	LOG (llevDebug, "We have not sent item %s (%d)\n", &op->name, op->count);
397	}
398
399	packet sl;
400
401	sl << "upditem "
402	<< uint8 (flags);
403
404	if (op->head)
405	op = op->head;
406
407	sl << uint32 (op->count);
408
409	if (flags & UPD_LOCATION)
410	sl << uint32 (op->env ? op->env->count : 0);
411
412	if (flags & UPD_FLAGS)
413	sl << uint32 (query_flags (op));
414
415	if (flags & UPD_WEIGHT)
416	{
417	sint32 weight = WEIGHT (op);
418
419	sl << uint32 (QUERY_FLAG (op, FLAG_NO_PICK) ? -1 : weight);
420
421	if (pl == op)
422	op->contr->last_weight = weight;
423	}
424
425	if (flags & UPD_FACE)
426	{
427	if (!(pl->contr->socket->faces_sent[op->face->number] & NS_FACESENT_FACE))
428	esrv_send_face (pl->contr->socket, op->face->number, 0);
429
430	sl << uint32 (op->face->number);
431	}
432
433	if (flags & UPD_NAME)
434	{
435	int len;
436	const char *item_p;
437	char item_n[MAX_BUF];
438
439	if (!op->custom_name)
440	{
441	strncpy (item_n, query_base_name (op, 0), 127);
442	item_n[127] = 0;
443	len = strlen (item_n);
444	item_p = query_base_name (op, 1);
445	}
446	else
447	{
448	strncpy (item_n, op->custom_name, 127);
449	item_n[127] = 0;
450	len = strlen (item_n);
451	item_p = op->custom_name;
452	}
453
454	strncpy (item_n + len + 1, item_p, 127);
455	item_n[254] = 0;
456	len += strlen (item_n + 1 + len) + 1;
457
458	sl << data8 (item_n, len);
459	}
460
461	if (flags & UPD_ANIM)
462	sl << uint16 (op->animation_id);
463
464	if (flags & UPD_ANIMSPEED)
465	{
466	int anim_speed = 0;
467
468	if (QUERY_FLAG (op, FLAG_ANIMATE))
469	{
470	if (op->anim_speed)
471	anim_speed = op->anim_speed;
472	else
473	{
474	if (FABS (op->speed) < 0.001)
475	anim_speed = 255;
476	else if (FABS (op->speed) >= 1.0)
477	anim_speed = 1;
478	else
479	anim_speed = (int) (1.0 / FABS (op->speed));
480	}
481
482	if (anim_speed > 255)
483	anim_speed = 255;
484	}
485
486	sl << uint8 (anim_speed);
487	}
488
489	if (flags & UPD_NROF)
490	sl << uint32 (op->nrof);
491
492	pl->contr->socket->send_packet (sl);
493	}
494
495	/**
496	* Sends item's info to player.
497	*/
498	void
499	esrv_send_item (object pl, object op)
500	{
501	/* If this is not the player object, do some more checks */
502	if (op != pl)
503	{
504	/* We only send 'visibile' objects to the client */
505	if (!LOOK_OBJ (op))
506	return;
507	/* if the item is on the ground, mark that the look needs to
508	* be updated.
509	*/
510	if (!op->env)
511	{
512	pl->contr->socket->update_look = 1;
513	return;
514	}
515	}
516
517	packet sl;
518
519	sl.printf ("item%d ", pl->contr->socket->itemcmd);
520
521	if (op->head)
522	op = op->head;
523
524	sl << uint32 (op->env ? op->env->count : 0);
525
526	add_object_to_socklist (*pl->contr->socket, sl, op);
527
528	pl->contr->socket->send_packet (sl);
529	SET_FLAG (op, FLAG_CLIENT_SENT);
530
531	}
532
533	/**
534	* Tells the client to delete an item. Uses the item
535	* command with a -1 location.
536	*/
537
538	void
539	esrv_del_item (player *pl, int tag)
540	{
541	packet sl;
542
543	sl << "delitem "
544	<< uint32 (tag);
545
546	pl->socket->send_packet (sl);
547	}
548
549
550	/*******************************************************************************
551	*
552	* Client has requested us to do something with an object.
553	*
554	******************************************************************************/
555
556	/**
557	* Takes a player and object count (tag) and returns the actual object
558	* pointer, or null if it can't be found.
559	*/
560
561	object *
562	esrv_get_ob_from_count (object *pl, tag_t count)
563	{
564	object op, tmp;
565
566	if (pl->count == count)
567	return pl;
568
569	for (op = pl->inv; op; op = op->below)
570	if (op->count == count)
571	return op;
572	else if (op->type == CONTAINER && pl->container == op)
573	for (tmp = op->inv; tmp; tmp = tmp->below)
574	if (tmp->count == count)
575	return tmp;
576
577	for (op = get_map_ob (pl->map, pl->x, pl->y); op; op = op->above)
578	if (op->head != NULL && op->head->count == count)
579	return op;
580	else if (op->count == count)
581	return op;
582	else if (op->type == CONTAINER && pl->container == op)
583	for (tmp = op->inv; tmp; tmp = tmp->below)
584	if (tmp->count == count)
585	return tmp;
586
587	return NULL;
588	}
589
590
591	/** Client wants to examine some object. So lets do so. */
592	void
593	ExamineCmd (char buf, int len, player pl)
594	{
595	tag_t tag = atoi (buf);
596
597	/* If the high bit is set, player examined a pseudo object. */
598	if (tag & 0x80000000)
599	return;
600
601	object *op = esrv_get_ob_from_count (pl->ob, tag);
602
603	if (!op)
604	{
605	LOG (llevDebug, "Player '%s' tried to examine the unknown object (%ld)\n", &pl->ob->name, tag);
606	return;
607	}
608
609	examine (pl->ob, op);
610	}
611
612	/** Client wants to apply some object. Lets do so. */
613	void
614	ApplyCmd (char buf, int len, player pl)
615	{
616	tag_t tag = atoi (buf);
617
618	/* sort of a hack, but if the player saves and the player then manually
619	* applies a savebed (or otherwise tries to do stuff), we run into trouble.
620	*/
621	if (QUERY_FLAG (pl->ob, FLAG_REMOVED))
622	return;
623
624	/* If the high bit is set, player applied a pseudo object. */
625	if (tag & 0x80000000)
626	{
627	pl->socket->look_position = tag & 0x7fffffff;
628	pl->socket->update_look = 1;
629	return;
630	}
631
632	object *op = esrv_get_ob_from_count (pl->ob, tag);
633
634	if (!op)
635	{
636	LOG (llevDebug, "Player '%s' tried to apply the unknown object (%d)\n", &pl->ob->name, tag);
637	return;
638	}
639
640	player_apply (pl->ob, op, 0, 0);
641	}
642
643	/** Client wants to apply some object. Lets do so. */
644	void
645	LockItem (uint8 data, int len, player pl)
646	{
647	int flag = data[0];
648	tag_t tag = net_uint32 (data + 1);
649	object *op = esrv_get_ob_from_count (pl->ob, tag);
650
651	if (!op)
652	{
653	new_draw_info (NDI_UNIQUE, 0, pl->ob, "Could not find object to lock/unlock");
654	return;
655	}
656
657	if (!flag)
658	CLEAR_FLAG (op, FLAG_INV_LOCKED);
659	else
660	SET_FLAG (op, FLAG_INV_LOCKED);
661
662	esrv_update_item (UPD_FLAGS, pl->ob, op);
663	}
664
665	/** Client wants to apply some object. Lets do so. */
666	void
667	MarkItem (uint8 * data, int len, player *pl)
668	{
669	tag_t tag = net_uint32 (data);
670	object *op = esrv_get_ob_from_count (pl->ob, tag);
671
672	if (!op)
673	{
674	new_draw_info (NDI_UNIQUE, 0, pl->ob, "Could not find object to mark");
675	return;
676	}
677
678	pl->mark = op;
679	new_draw_info_format (NDI_UNIQUE, 0, pl->ob, "Marked item %s", query_name (op));
680	}
681
682	/**
683	* look_at prints items on the specified square.
684	*
685	* [ removed EARTHWALL check and added check for containers inventory.
686	* Tero.Haatanen@lut.fi ]
687	*/
688	void
689	look_at (object *op, int dx, int dy)
690	{
691	object *tmp;
692	int flag = 0;
693	sint16 x, y;
694	maptile *m;
695
696	x = op->x + dx;
697	y = op->y + dy;
698
699	if (out_of_map (op->map, x, y))
700	return;
701
702	m = get_map_from_coord (op->map, &x, &y);
703	if (!m)
704	return;
705
706	for (tmp = get_map_ob (m, x, y); tmp != NULL && tmp->above != NULL; tmp = tmp->above);
707
708	for (; tmp != NULL; tmp = tmp->below)
709	{
710	if (tmp->invisible && !QUERY_FLAG (op, FLAG_WIZ))
711	continue;
712
713	if (!flag)
714	{
715	if (dx \|\| dy)
716	new_draw_info (NDI_UNIQUE, 0, op, "There you see:");
717	else
718	{
719	clear_win_info (op);
720	new_draw_info (NDI_UNIQUE, 0, op, "You see:");
721	}
722	flag = 1;
723	}
724
725	if (QUERY_FLAG (op, FLAG_WIZ))
726	new_draw_info_format (NDI_UNIQUE, 0, op, "- %s (%d).", query_name (tmp), tmp->count);
727	else
728	new_draw_info_format (NDI_UNIQUE, 0, op, "- %s.", query_name (tmp));
729
730	if (((tmp->inv != NULL \|\| (tmp->head && tmp->head->inv)) &&
731	(tmp->type != CONTAINER && tmp->type != FLESH)) \|\| QUERY_FLAG (op, FLAG_WIZ))
732	inventory (op, tmp->head == NULL ? tmp : tmp->head);
733
734	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR) && !QUERY_FLAG (op, FLAG_WIZ)) /* don't continue under the floor */
735	break;
736	}
737
738	if (!flag)
739	{
740	if (dx \|\| dy)
741	new_draw_info (NDI_UNIQUE, 0, op, "You see nothing there.");
742	else
743	new_draw_info (NDI_UNIQUE, 0, op, "You see nothing.");
744	}
745	}
746
747
748
749	/** Client wants to look at some object. Lets do so. */
750	void
751	LookAt (char buf, int len, player pl)
752	{
753	int dx, dy;
754	char *cp;
755
756	dx = atoi (buf);
757	if (!(cp = strchr (buf, ' ')))
758	{
759	return;
760	}
761	dy = atoi (cp);
762
763	if (FABS (dx) > pl->socket->mapx / 2 \|\| FABS (dy) > pl->socket->mapy / 2)
764	return;
765
766	if (pl->blocked_los[dx + pl->socket->mapx / 2][dy + pl->socket->mapy / 2])
767	return;
768
769	look_at (pl->ob, dx, dy);
770	}
771
772	/** Move an object to a new location */
773	void
774	esrv_move_object (object *pl, tag_t to, tag_t tag, long nrof)
775	{
776	object op, env;
777
778	op = esrv_get_ob_from_count (pl, tag);
779	if (!op)
780	{
781	LOG (llevDebug, "Player '%s' tried to move an unknown object (%ld)\n", &pl->name, tag);
782	return;
783	}
784
785	if (!to)
786	{ /* drop it to the ground */
787	if (op->map && !op->env)
788	return;
789
790	/* If it is an active container, then we should drop all objects
791	* in the container and not the container itself.
792	*/
793	if (op->inv && QUERY_FLAG (op, FLAG_APPLIED))
794	{
795	object current, next;
796
797	for (current = op->inv; current != NULL; current = next)
798	{
799	next = current->below;
800	drop_object (pl, current, 0);
801	}
802
803	esrv_update_item (UPD_WEIGHT, pl, op);
804	}
805	else
806	{
807	drop_object (pl, op, nrof);
808	}
809	return;
810	}
811	else if (to == pl->count)
812	{ /* pick it up to the inventory */
813	/* return if player has already picked it up */
814	if (op->env == pl)
815	return;
816
817	pl->contr->count = nrof;
818	pick_up (pl, op);
819	return;
820	}
821
822	env = esrv_get_ob_from_count (pl, to);
823	if (!env)
824	{
825	LOG (llevDebug, "Player '%s' tried to move object to the unknown location (%d)\n", &pl->name, to);
826	return;
827	}
828
829	/* put_object_in_sack presumes that necessary sanity checking
830	* has already been done (eg, it can be picked up and fits in
831	* in a sack, so check for those things. We should also check
832	* an make sure env is in fact a container for that matter.
833	*/
834	if (env->type == CONTAINER && can_pick (pl, op) && sack_can_hold (pl, env, op, nrof))
835	{
836	put_object_in_sack (pl, env, op, nrof);
837	}
838	}
839