server/socket/item.C

/*
 * This file is part of Deliantra, the Roguelike Realtime MMORPG.
 * 
 * Copyright (©) 2005,2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
 * Copyright (©) 2002,2007 Mark Wedel & Crossfire Development Team
 * Copyright (©) 1992,2007 Frank Tore Johansen
 * 
 * Deliantra is free software: you can redistribute it and/or modify it under
 * the terms of the Affero GNU General Public License as published by the
 * Free Software Foundation, either version 3 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 Affero GNU General Public License
 * and the GNU General Public License along with this program. If not, see
 * <http://www.gnu.org/licenses/>.
 * 
 * The authors can be reached via e-mail to <support@deliantra.net>
 */

/**
 * \file
 * Client/server logic.
 *
 * \date 2003-12-02
 *
 * This contains 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>
#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->is_open_container ())
    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 = query_flags (head);

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

  ns.send_face (head->face, -50);
  ns.flush_fx ();

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

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

  if (!head->custom_name)
    {
      const char *name;
      uint8 *len = sl.cur++; // patch up length later

      name = query_base_name (head, 0); sl << data (name, min (127, strlen (name)));
      sl << uint8 (0);
      name = query_base_name (head, 1); sl << data (name, min (127, strlen (name)));

      *len = sl.cur - len - 1;
    }
  else
    {
      int len = min (head->custom_name.length (), 127);

      sl << uint8 (len * 2 + 1)
         << data (head->custom_name, len)
         << uint8 (0)
         << data (head->custom_name, len);
    }

  sl << uint16 (head->animation_id);

  int anim_speed = !head->flag [FLAG_ANIMATE] ? 0
                 : head->anim_speed           ? clamp (head->anim_speed, 1, 255)
                 :                              1. / clamp (fabs (head->speed), 1./255., 1./1.);

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

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

static faceidx
need_face_now (player *pl, const char *name)
{
  faceidx face = face_find (name, empty_face);

  pl->ns->send_face (face, -50);
  pl->ns->flush_fx ();

  return face;
}

#define FINGER_UP   "finger_up.x11"
#define FINGER_DOWN "finger_down.x11"

/**
 * 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 (player *pl)
{
  object *ob = pl->ob;

  if (!pl->ns->update_look)
    {
      LOG (llevDebug, "esrv_draw_look called when update_look was not set (player %s)\n", &ob->name);
      return;
    }

  pl->ns->update_look = 0;

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

  pl->ns->send_packet ("delinv 0");

  packet sl;
  sl.printf ("item%d ", pl->ns->itemcmd);

  sl << uint32 (0);

  int start_pos = pl->ns->look_position;
  bool dirty = false;

  mapspace &ms = ob->ms ();

  // manage a ring buffer of the "last FLOORBOX_PAGESIZE" items and
  // start from the top
  object *items [FLOORBOX_PAGESIZE];
  int item_idx = 0, item_cnt = 0;
  int pos = 0;

  // find our items by walking down
  object *item = ms.top;

  for (; item && item_cnt < FLOORBOX_PAGESIZE; item = item->below)
    {
      if (!item->client_visible ())
        continue;

      if (++pos < start_pos)
        continue;

      // record item
      items [item_idx] = item; item_idx = item_idx < FLOORBOX_PAGESIZE ? item_idx + 1 : 0;
      item_cnt++;

      // stop at first floor
      if (item->flag [FLAG_IS_FLOOR])
        {
          // we are finished, don't append "next group of items"
          // by setting item to ms.bot it becomes zero which is checked after the while loop
          item = ms.bot;
        }
    }

  // see if there are more if we cared - we ignore invisible objects
  if (item)
    {
      /* 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 | (start_pos + FLOORBOX_PAGESIZE))
         << uint32 (0)
         << uint32 ((uint32) - 1)
         << uint32 (need_face_now (pl, FINGER_DOWN))
         << data8  ("Apply this to see the items below")
         << uint16 (0)
         << uint8  (0)
         << uint32 (0);

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

      dirty = true;
    }

  // now send out all items in the ring buffer in reverse order
  while (item_cnt)
    {
      --item_cnt;
      item_idx = (item_idx ? item_idx : FLOORBOX_PAGESIZE) - 1;
      object *item = items [item_idx];

      add_object_to_socklist (*pl->ns, sl, item->head_ ());

      dirty = true;

      // if packet got too large, send it and begin a new one
      if (sl.length () > MAXSOCKBUF - MAXITEMLEN)
        {
          pl->ns->send_packet (sl);

          sl.reset ();
          sl.printf ("item%d ", pl->ns->itemcmd);
          sl << uint32 (0);

          dirty = false;
        }
    }
  
  if (start_pos)
    {
      sl << uint32 (0x80000000 | (start_pos - FLOORBOX_PAGESIZE))
         << uint32 (0)
         << sint32 (-1)
         << uint32 (need_face_now (pl, FINGER_UP))
         << data8  ("Apply this to see the items higher up")
         << uint16 (0)
         << uint8  (0)
         << uint32 (0);

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

      dirty = true;
    }

  if (dirty)
    pl->ns->send_packet (sl);
}

/**
 * Sends whole inventory.
 */
void
esrv_send_inventory (object *pl, object *op)
{
  if (!pl->contr->ns)//D
    return;

  int got_one = 0;

  pl->contr->ns->send_packet_printf ("delinv %d", op->count);

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

  sl << uint32 (op->count);

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

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

      if (head->client_visible ())
        {
          add_object_to_socklist (*pl->contr->ns, 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->ns->send_packet (sl);

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

  if (got_one)
    pl->contr->ns->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 && !op->client_visible ())
    return;

  client *ns = pl->contr->ns;
  if (!ns)
    return;

  packet sl ("upditem");

  sl << uint8 (flags);

  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 = op->client_weight ();

      if (op == pl)
        ns->last_weight = weight;

      sl << uint32 (weight);
    }

  if (flags & UPD_FACE)
    {
      ns->send_face (op->face, -50);
      ns->flush_fx ();
      sl << uint32 (op->face);
    }

  if (flags & UPD_NAME)
    {
      int len;
      const char *item_p;
      char item_n[127 * 2];

      if (!op->custom_name)
        {
          len = assign (item_n, query_base_name (op, 0), 127);
          item_p = query_base_name (op, 1);
        }
      else
        {
          len = assign (item_n, &op->custom_name, 127);
          item_p = &op->custom_name;
        }

      len += assign (item_n + len, item_p, 127);

      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->ns->send_packet (sl);
}

/**
 * Sends item's info to player.
 */
void
esrv_send_item (object *pl, object *op)
{
  if (!pl->contr->ns)
    return;

  /* We only send 'visible' objects to the client, and sometimes the player */
  if (!op->client_visible () && op->type != PLAYER)
    return;

  packet sl;

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

  op = op->head_ ();

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

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

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

/**
 * Tells the client to delete an item.
 */
void
esrv_del_item (player *pl, int tag)
{
  if (!pl->ns)
    return;

  packet sl ("delitem");

  sl << uint32 (tag);

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

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

  for (object *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 (object *tmp = op->inv; tmp; tmp = tmp->below)
        if (tmp->count == count)
          return tmp;

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

  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 applied a pseudo object. */
  if (tag & 0x80000000)
    {
      pl->ns->look_position = tag & 0x7fffffff;
      pl->ns->floorbox_update ();
      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 examine some object.  So lets do so. */
void
ExCmd (char *buf, int len, player *pl)
{
  tag_t tag = atoi (buf);

  if (object *op = esrv_get_ob_from_count (pl->ob, tag))
    {
      std::string s = op->describe (pl->ob);

      packet sl ("ex");
      sl << ber32 (tag)
         << data (*pl->expand_cfpod (s.c_str ()));

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

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

  /* If the high bit is set, player applied a pseudo object. */
  if (tag & 0x80000000)
    {
      pl->ns->look_position = tag & 0x7fffffff;
      pl->ns->floorbox_update ();
      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 lock 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)
    {
      pl->failmsg ("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 mark 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)
    {
      pl->failmsg ("Could not find object to mark");
      return;
    }

  pl->mark = op;
  pl->ob->statusmsg (format ("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 ]
 */
static void
look_at (player *pl, int dx, int dy)
{
  dynbuf_text &buf = msg_dynbuf; buf.clear ();
  object *ob = pl->ob;

  if (!pl->observe->map)
    return;

  bool wiz = ob->flag [FLAG_WIZ] || ob->flag [FLAG_WIZLOOK];

  mapxy pos (pl->observe);
  pos.move (dx, dy);

  if (wiz)
    {
      if (pos.normalise ())
        {
          mapspace &ms = *pos;
          ms.update ();

          buf.printf (" map: %s%+d%+d (%+d%+d)\n"
                      " smell %u/%u; flags %x; light %d; block %x; slow %x; on %x; off %x; volume %lld\n\n",
                      &pos.m->path, pos.x, pos.y, dx, dy,
                      (unsigned int)ms.smell, (unsigned int)mapspace::smellcount, ms.flags (), ms.light,
                      ms.move_block, ms.move_slow, ms.move_on, ms.move_off, (long long)ms.volume ()
                     );
        }
      else
        buf << "off-map\n\n";
    }

  int darkness = pl->blocked_los (dx, dy);

  if (darkness == LOS_BLOCKED)
    buf << "You cannot see that place from your position. H<Something is in between or it is too far away.>";
  else if (darkness == LOS_MAX)
    buf << "That place is too dark to see anything. H<Move nearer or find better lighting.>";
  else
    {
      if (pos.normalise ())
        for (object *tmp = pos->top; tmp; tmp = tmp->below)
          {
            if (tmp->invisible && !QUERY_FLAG (ob, FLAG_WIZ))
              continue;

            if (wiz)
              buf.printf (" - %s (%d).\n", query_name (tmp), tmp->count);
            else
              buf.printf (" - %s.\n", query_name (tmp));

            object *head = tmp->head_ ();

            if (head->inv)
              if ((head->type != CONTAINER && head->type != FLESH)
                  || QUERY_FLAG (ob, FLAG_WIZ))
                buf << head->query_inventory (ob, "   ");

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

  if (buf.empty ())
    buf << "You see nothing there.";

  pl->infobox (MSG_CHANNEL ("lookat"), buf);
}

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

  int dx = atoi (buf);
  if (!(cp = strchr (buf, ' ')))
    return;

  int dy = atoi (cp);

  look_at (pl, 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 = 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))
        {
          int cnt = MAX_ITEM_PER_DROP;

          for (object *current = op->inv; current && cnt--; )
            {
              object *next = current->below;
              drop_object (pl, current, 0);
              current = next;
            }

          if (cnt <= 0)
            op->failmsg ("Only dropped some items, can't drop that many items at once.");
        }
      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;
    }

  object *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:	1.81
Committed:	Tue Oct 20 07:18:11 2009 UTC (14 years, 7 months ago) by root
Content type:	text/plain
Branch:	MAIN
CVS Tags:	rel-2_82
Changes since 1.80:	+16 -19 lines
Log Message:	* empty log message *
#	Content
1	/*
2	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
3	*
4	* Copyright (©) 2005,2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5	* Copyright (©) 2002,2007 Mark Wedel & Crossfire Development Team
6	* Copyright (©) 1992,2007 Frank Tore Johansen
7	*
8	* Deliantra is free software: you can redistribute it and/or modify it under
9	* the terms of the Affero GNU General Public License as published by the
10	* Free Software Foundation, either version 3 of the License, or (at your
11	* 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 Affero GNU General Public License
19	* and the GNU General Public License along with this program. If not, see
20	* <http://www.gnu.org/licenses/>.
21	*
22	* The authors can be reached via e-mail to <support@deliantra.net>
23	*/
24
25	/**
26	* \file
27	* Client/server logic.
28	*
29	* \date 2003-12-02
30	*
31	* This contains item logic for client/server. It doesn't contain
32	* the actual commands that send the data, but does contain
33	* the logic for what items should be sent.
34	*/
35
36	#include <global.h>
37	#include <object.h>
38	#include <sproto.h>
39
40	/** This is the maximum number of bytes we expect any one item to take up */
41	#define MAXITEMLEN 300
42
43	/*******************************************************************************
44	*
45	* Functions related to sending object data to the client.
46	*
47	******************************************************************************/
48
49	/**
50	* This is a similar to query_name, but returns flags
51	* to be sent to client.
52	*/
53	unsigned int
54	query_flags (object *op)
55	{
56	unsigned int flags = 0;
57
58	if (QUERY_FLAG (op, FLAG_APPLIED))
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	if (op->is_open_container ())
92	flags \|= F_OPEN;
93
94	if (QUERY_FLAG (op, FLAG_KNOWN_CURSED))
95	{
96	if (QUERY_FLAG (op, FLAG_DAMNED))
97	flags \|= F_DAMNED;
98	else if (QUERY_FLAG (op, FLAG_CURSED))
99	flags \|= F_CURSED;
100	}
101
102	if (QUERY_FLAG (op, FLAG_KNOWN_MAGICAL) && !QUERY_FLAG (op, FLAG_IDENTIFIED))
103	flags \|= F_MAGIC;
104	if (QUERY_FLAG (op, FLAG_UNPAID))
105	flags \|= F_UNPAID;
106	if (QUERY_FLAG (op, FLAG_INV_LOCKED))
107	flags \|= F_LOCKED;
108
109	return flags;
110	}
111
112	/* Used in the send_look to put object head into packet
113	* sl for socket ns. Need socket to know if we need to send
114	* animation of face to the client.
115	*/
116	static void
117	add_object_to_socklist (client &ns, packet &sl, object *head)
118	{
119	int flags = query_flags (head);
120
121	if (QUERY_FLAG (head, FLAG_NO_PICK))
122	flags \|= F_NOPICK;
123
124	ns.send_face (head->face, -50);
125	ns.flush_fx ();
126
127	if (QUERY_FLAG (head, FLAG_ANIMATE) && !ns.anims_sent[head->animation_id])
128	ns.send_animation (head->animation_id);
129
130	sl << uint32 (head->count)
131	<< uint32 (flags)
132	<< uint32 (QUERY_FLAG (head, FLAG_NO_PICK) ? -1 : head->client_weight ())
133	<< uint32 (head->face);
134
135	if (!head->custom_name)
136	{
137	const char *name;
138	uint8 *len = sl.cur++; // patch up length later
139
140	name = query_base_name (head, 0); sl << data (name, min (127, strlen (name)));
141	sl << uint8 (0);
142	name = query_base_name (head, 1); sl << data (name, min (127, strlen (name)));
143
144	*len = sl.cur - len - 1;
145	}
146	else
147	{
148	int len = min (head->custom_name.length (), 127);
149
150	sl << uint8 (len * 2 + 1)
151	<< data (head->custom_name, len)
152	<< uint8 (0)
153	<< data (head->custom_name, len);
154	}
155
156	sl << uint16 (head->animation_id);
157
158	int anim_speed = !head->flag [FLAG_ANIMATE] ? 0
159	: head->anim_speed ? clamp (head->anim_speed, 1, 255)
160	: 1. / clamp (fabs (head->speed), 1./255., 1./1.);
161
162	sl << uint8 (anim_speed)
163	<< uint32 (head->nrof);
164
165	if (ns.itemcmd == 2)
166	sl << uint16 (head->client_type);
167	}
168
169	static faceidx
170	need_face_now (player pl, const char name)
171	{
172	faceidx face = face_find (name, empty_face);
173
174	pl->ns->send_face (face, -50);
175	pl->ns->flush_fx ();
176
177	return face;
178	}
179
180	#define FINGER_UP "finger_up.x11"
181	#define FINGER_DOWN "finger_down.x11"
182
183	/**
184	* Send the look window. Don't need to do animations here
185	* This sends all the faces to the client, not just updates. This is
186	* because object ordering would otherwise be inconsistent.
187	*/
188	void
189	esrv_draw_look (player *pl)
190	{
191	object *ob = pl->ob;
192
193	if (!pl->ns->update_look)
194	{
195	LOG (llevDebug, "esrv_draw_look called when update_look was not set (player %s)\n", &ob->name);
196	return;
197	}
198
199	pl->ns->update_look = 0;
200
201	if (QUERY_FLAG (ob, FLAG_REMOVED)
202	\|\| !ob->map
203	\|\| ob->map->in_memory != MAP_ACTIVE
204	\|\| out_of_map (ob->map, ob->x, ob->y))
205	return;
206
207	pl->ns->send_packet ("delinv 0");
208
209	packet sl;
210	sl.printf ("item%d ", pl->ns->itemcmd);
211
212	sl << uint32 (0);
213
214	int start_pos = pl->ns->look_position;
215	bool dirty = false;
216
217	mapspace &ms = ob->ms ();
218
219	// manage a ring buffer of the "last FLOORBOX_PAGESIZE" items and
220	// start from the top
221	object *items [FLOORBOX_PAGESIZE];
222	int item_idx = 0, item_cnt = 0;
223	int pos = 0;
224
225	// find our items by walking down
226	object *item = ms.top;
227
228	for (; item && item_cnt < FLOORBOX_PAGESIZE; item = item->below)
229	{
230	if (!item->client_visible ())
231	continue;
232
233	if (++pos < start_pos)
234	continue;
235
236	// record item
237	items [item_idx] = item; item_idx = item_idx < FLOORBOX_PAGESIZE ? item_idx + 1 : 0;
238	item_cnt++;
239
240	// stop at first floor
241	if (item->flag [FLAG_IS_FLOOR])
242	{
243	// we are finished, don't append "next group of items"
244	// by setting item to ms.bot it becomes zero which is checked after the while loop
245	item = ms.bot;
246	}
247	}
248
249	// see if there are more if we cared - we ignore invisible objects
250	if (item)
251	{
252	/* What we basically do is make a 'fake' object - when the user applies it,
253	* we notice the special tag the object has, and act accordingly.
254	*/
255	sl << uint32 (0x80000000 \| (start_pos + FLOORBOX_PAGESIZE))
256	<< uint32 (0)
257	<< uint32 ((uint32) - 1)
258	<< uint32 (need_face_now (pl, FINGER_DOWN))
259	<< data8 ("Apply this to see the items below")
260	<< uint16 (0)
261	<< uint8 (0)
262	<< uint32 (0);
263
264	if (pl->ns->itemcmd == 2)
265	sl << uint16 (0);
266
267	dirty = true;
268	}
269
270	// now send out all items in the ring buffer in reverse order
271	while (item_cnt)
272	{
273	--item_cnt;
274	item_idx = (item_idx ? item_idx : FLOORBOX_PAGESIZE) - 1;
275	object *item = items [item_idx];
276
277	add_object_to_socklist (*pl->ns, sl, item->head_ ());
278
279	dirty = true;
280
281	// if packet got too large, send it and begin a new one
282	if (sl.length () > MAXSOCKBUF - MAXITEMLEN)
283	{
284	pl->ns->send_packet (sl);
285
286	sl.reset ();
287	sl.printf ("item%d ", pl->ns->itemcmd);
288	sl << uint32 (0);
289
290	dirty = false;
291	}
292	}
293
294	if (start_pos)
295	{
296	sl << uint32 (0x80000000 \| (start_pos - FLOORBOX_PAGESIZE))
297	<< uint32 (0)
298	<< sint32 (-1)
299	<< uint32 (need_face_now (pl, FINGER_UP))
300	<< data8 ("Apply this to see the items higher up")
301	<< uint16 (0)
302	<< uint8 (0)
303	<< uint32 (0);
304
305	if (pl->ns->itemcmd == 2)
306	sl << uint16 (0);
307
308	dirty = true;
309	}
310
311	if (dirty)
312	pl->ns->send_packet (sl);
313	}
314
315	/**
316	* Sends whole inventory.
317	*/
318	void
319	esrv_send_inventory (object pl, object op)
320	{
321	if (!pl->contr->ns)//D
322	return;
323
324	int got_one = 0;
325
326	pl->contr->ns->send_packet_printf ("delinv %d", op->count);
327
328	packet sl;
329	sl.printf ("item%d ", pl->contr->ns->itemcmd);
330
331	sl << uint32 (op->count);
332
333	for (object *tmp = op->inv; tmp; tmp = tmp->below)
334	{
335	object *head;
336
337	if (tmp->head)
338	head = tmp->head;
339	else
340	head = tmp;
341
342	if (head->client_visible ())
343	{
344	add_object_to_socklist (*pl->contr->ns, sl, head);
345
346	got_one++;
347
348	/* IT is possible for players to accumulate a huge amount of
349	* items (especially with some of the bags out there) to
350	* overflow the buffer. IF so, send multiple item commands.
351	*/
352	if (sl.length () > MAXSOCKBUF - MAXITEMLEN)
353	{
354	pl->contr->ns->send_packet (sl);
355
356	sl.reset ();
357	sl.printf ("item%d ", pl->contr->ns->itemcmd);
358	sl << uint32 (op->count);
359	got_one = 0;
360	}
361	}
362	}
363
364	if (got_one)
365	pl->contr->ns->send_packet (sl);
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	void
376	esrv_update_item (int flags, object pl, object op)
377	{
378	/* If we have a request to send the player item, skip a few checks. */
379	if (op != pl && !op->client_visible ())
380	return;
381
382	client *ns = pl->contr->ns;
383	if (!ns)
384	return;
385
386	packet sl ("upditem");
387
388	sl << uint8 (flags);
389
390	op = op->head_ ();
391
392	sl << uint32 (op->count);
393
394	if (flags & UPD_LOCATION)
395	sl << uint32 (op->env ? op->env->count : 0);
396
397	if (flags & UPD_FLAGS)
398	sl << uint32 (query_flags (op));
399
400	if (flags & UPD_WEIGHT)
401	{
402	sint32 weight = op->client_weight ();
403
404	if (op == pl)
405	ns->last_weight = weight;
406
407	sl << uint32 (weight);
408	}
409
410	if (flags & UPD_FACE)
411	{
412	ns->send_face (op->face, -50);
413	ns->flush_fx ();
414	sl << uint32 (op->face);
415	}
416
417	if (flags & UPD_NAME)
418	{
419	int len;
420	const char *item_p;
421	char item_n[127 * 2];
422
423	if (!op->custom_name)
424	{
425	len = assign (item_n, query_base_name (op, 0), 127);
426	item_p = query_base_name (op, 1);
427	}
428	else
429	{
430	len = assign (item_n, &op->custom_name, 127);
431	item_p = &op->custom_name;
432	}
433
434	len += assign (item_n + len, item_p, 127);
435
436	sl << data8 (item_n, len);
437	}
438
439	if (flags & UPD_ANIM)
440	sl << uint16 (op->animation_id);
441
442	if (flags & UPD_ANIMSPEED)
443	{
444	int anim_speed = 0;
445
446	if (QUERY_FLAG (op, FLAG_ANIMATE))
447	{
448	if (op->anim_speed)
449	anim_speed = op->anim_speed;
450	else
451	{
452	if (fabs (op->speed) < 0.001)
453	anim_speed = 255;
454	else if (fabs (op->speed) >= 1.0)
455	anim_speed = 1;
456	else
457	anim_speed = (int) (1.0 / fabs (op->speed));
458	}
459
460	if (anim_speed > 255)
461	anim_speed = 255;
462	}
463
464	sl << uint8 (anim_speed);
465	}
466
467	if (flags & UPD_NROF)
468	sl << uint32 (op->nrof);
469
470	pl->contr->ns->send_packet (sl);
471	}
472
473	/**
474	* Sends item's info to player.
475	*/
476	void
477	esrv_send_item (object pl, object op)
478	{
479	if (!pl->contr->ns)
480	return;
481
482	/* We only send 'visible' objects to the client, and sometimes the player */
483	if (!op->client_visible () && op->type != PLAYER)
484	return;
485
486	packet sl;
487
488	sl.printf ("item%d ", pl->contr->ns->itemcmd);
489
490	op = op->head_ ();
491
492	sl << uint32 (op->env ? op->env->count : 0);
493
494	add_object_to_socklist (*pl->contr->ns, sl, op);
495
496	pl->contr->ns->send_packet (sl);
497	}
498
499	/**
500	* Tells the client to delete an item.
501	*/
502	void
503	esrv_del_item (player *pl, int tag)
504	{
505	if (!pl->ns)
506	return;
507
508	packet sl ("delitem");
509
510	sl << uint32 (tag);
511
512	pl->ns->send_packet (sl);
513	}
514
515
516	/*******************************************************************************
517	*
518	* Client has requested us to do something with an object.
519	*
520	******************************************************************************/
521
522	/**
523	* Takes a player and object count (tag) and returns the actual object
524	* pointer, or null if it can't be found.
525	*/
526	object *
527	esrv_get_ob_from_count (object *pl, tag_t count)
528	{
529	if (pl->count == count)
530	return pl;
531
532	for (object *op = pl->inv; op; op = op->below)
533	if (op->count == count)
534	return op;
535	else if (op->type == CONTAINER && pl->container_ () == op)
536	for (object *tmp = op->inv; tmp; tmp = tmp->below)
537	if (tmp->count == count)
538	return tmp;
539
540	for (object *op = GET_MAP_OB (pl->map, pl->x, pl->y); op; op = op->above)
541	if (op->head && op->head->count == count)
542	return op;
543	else if (op->count == count)
544	return op;
545	else if (op->type == CONTAINER && pl->container_ () == op)
546	for (object *tmp = op->inv; tmp; tmp = tmp->below)
547	if (tmp->count == count)
548	return tmp;
549
550	#if 0
551	/* If the high bit is set, player examined a pseudo object. */
552	if (count & 0x80000000)
553	return 0;
554	#endif
555
556	return 0;
557	}
558
559	/** Client wants to examine some object. So lets do so. */
560	void
561	ExamineCmd (char buf, int len, player pl)
562	{
563	tag_t tag = atoi (buf);
564
565	/* If the high bit is set, player applied a pseudo object. */
566	if (tag & 0x80000000)
567	{
568	pl->ns->look_position = tag & 0x7fffffff;
569	pl->ns->floorbox_update ();
570	return;
571	}
572
573	object *op = esrv_get_ob_from_count (pl->ob, tag);
574
575	if (!op)
576	{
577	LOG (llevDebug, "Player '%s' tried to examine the unknown object (%ld)\n", &pl->ob->name, tag);
578	return;
579	}
580
581	examine (pl->ob, op);
582	}
583
584	/** Client wants to examine some object. So lets do so. */
585	void
586	ExCmd (char buf, int len, player pl)
587	{
588	tag_t tag = atoi (buf);
589
590	if (object *op = esrv_get_ob_from_count (pl->ob, tag))
591	{
592	std::string s = op->describe (pl->ob);
593
594	packet sl ("ex");
595	sl << ber32 (tag)
596	<< data (*pl->expand_cfpod (s.c_str ()));
597
598	pl->ns->send_packet (sl);
599	}
600	}
601
602	/** Client wants to apply some object. Lets do so. */
603	void
604	ApplyCmd (char buf, int len, player pl)
605	{
606	tag_t tag = atoi (buf);
607
608	/* If the high bit is set, player applied a pseudo object. */
609	if (tag & 0x80000000)
610	{
611	pl->ns->look_position = tag & 0x7fffffff;
612	pl->ns->floorbox_update ();
613	return;
614	}
615
616	object *op = esrv_get_ob_from_count (pl->ob, tag);
617
618	if (!op)
619	{
620	LOG (llevDebug, "Player '%s' tried to apply the unknown object (%d)\n", &pl->ob->name, tag);
621	return;
622	}
623
624	player_apply (pl->ob, op, 0, 0);
625	}
626
627	/** Client wants to lock some object. Lets do so. */
628	void
629	LockItem (char data, int len, player pl)
630	{
631	int flag = data[0];
632	tag_t tag = net_uint32 ((uint8 *)data + 1);
633	object *op = esrv_get_ob_from_count (pl->ob, tag);
634
635	if (!op)
636	{
637	pl->failmsg ("Could not find object to lock/unlock");
638	return;
639	}
640
641	if (!flag)
642	CLEAR_FLAG (op, FLAG_INV_LOCKED);
643	else
644	SET_FLAG (op, FLAG_INV_LOCKED);
645
646	esrv_update_item (UPD_FLAGS, pl->ob, op);
647	}
648
649	/** Client wants to mark some object. Lets do so. */
650	void
651	MarkItem (char data, int len, player pl)
652	{
653	tag_t tag = net_uint32 ((uint8 *)data);
654	object *op = esrv_get_ob_from_count (pl->ob, tag);
655
656	if (!op)
657	{
658	pl->failmsg ("Could not find object to mark");
659	return;
660	}
661
662	pl->mark = op;
663	pl->ob->statusmsg (format ("Marked item %s", query_name (op)));
664	}
665
666	/**
667	* look_at prints items on the specified square.
668	*
669	* [ removed EARTHWALL check and added check for containers inventory.
670	* Tero.Haatanen@lut.fi ]
671	*/
672	static void
673	look_at (player *pl, int dx, int dy)
674	{
675	dynbuf_text &buf = msg_dynbuf; buf.clear ();
676	object *ob = pl->ob;
677
678	if (!pl->observe->map)
679	return;
680
681	bool wiz = ob->flag [FLAG_WIZ] \|\| ob->flag [FLAG_WIZLOOK];
682
683	mapxy pos (pl->observe);
684	pos.move (dx, dy);
685
686	if (wiz)
687	{
688	if (pos.normalise ())
689	{
690	mapspace &ms = *pos;
691	ms.update ();
692
693	buf.printf (" map: %s%+d%+d (%+d%+d)\n"
694	" smell %u/%u; flags %x; light %d; block %x; slow %x; on %x; off %x; volume %lld\n\n",
695	&pos.m->path, pos.x, pos.y, dx, dy,
696	(unsigned int)ms.smell, (unsigned int)mapspace::smellcount, ms.flags (), ms.light,
697	ms.move_block, ms.move_slow, ms.move_on, ms.move_off, (long long)ms.volume ()
698	);
699	}
700	else
701	buf << "off-map\n\n";
702	}
703
704	int darkness = pl->blocked_los (dx, dy);
705
706	if (darkness == LOS_BLOCKED)
707	buf << "You cannot see that place from your position. H<Something is in between or it is too far away.>";
708	else if (darkness == LOS_MAX)
709	buf << "That place is too dark to see anything. H<Move nearer or find better lighting.>";
710	else
711	{
712	if (pos.normalise ())
713	for (object *tmp = pos->top; tmp; tmp = tmp->below)
714	{
715	if (tmp->invisible && !QUERY_FLAG (ob, FLAG_WIZ))
716	continue;
717
718	if (wiz)
719	buf.printf (" - %s (%d).\n", query_name (tmp), tmp->count);
720	else
721	buf.printf (" - %s.\n", query_name (tmp));
722
723	object *head = tmp->head_ ();
724
725	if (head->inv)
726	if ((head->type != CONTAINER && head->type != FLESH)
727	\|\| QUERY_FLAG (ob, FLAG_WIZ))
728	buf << head->query_inventory (ob, " ");
729
730	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR) && !wiz) /* don't continue under the floor */
731	break;
732	}
733	}
734
735	if (buf.empty ())
736	buf << "You see nothing there.";
737
738	pl->infobox (MSG_CHANNEL ("lookat"), buf);
739	}
740
741	/** Client wants to look at some object. Lets do so. */
742	void
743	LookAt (char buf, int len, player pl)
744	{
745	char *cp;
746
747	int dx = atoi (buf);
748	if (!(cp = strchr (buf, ' ')))
749	return;
750
751	int dy = atoi (cp);
752
753	look_at (pl, dx, dy);
754	}
755
756	/** Move an object to a new location */
757	void
758	esrv_move_object (object *pl, tag_t to, tag_t tag, long nrof)
759	{
760	object *op = esrv_get_ob_from_count (pl, tag);
761	if (!op)
762	{
763	LOG (llevDebug, "Player '%s' tried to move an unknown object (%ld)\n", &pl->name, tag);
764	return;
765	}
766
767	if (!to)
768	{ /* drop it to the ground */
769	if (op->map && !op->env)
770	return;
771
772	/* If it is an active container, then we should drop all objects
773	* in the container and not the container itself.
774	*/
775	if (op->inv && QUERY_FLAG (op, FLAG_APPLIED))
776	{
777	int cnt = MAX_ITEM_PER_DROP;
778
779	for (object *current = op->inv; current && cnt--; )
780	{
781	object *next = current->below;
782	drop_object (pl, current, 0);
783	current = next;
784	}
785
786	if (cnt <= 0)
787	op->failmsg ("Only dropped some items, can't drop that many items at once.");
788	}
789	else
790	drop_object (pl, op, nrof);
791
792	return;
793	}
794	else if (to == pl->count)
795	{ /* pick it up to the inventory */
796	/* return if player has already picked it up */
797	if (op->env == pl)
798	return;
799
800	pl->contr->count = nrof;
801	pick_up (pl, op);
802	return;
803	}
804
805	object *env = esrv_get_ob_from_count (pl, to);
806	if (!env)
807	{
808	LOG (llevDebug, "Player '%s' tried to move object to the unknown location (%d)\n", &pl->name, to);
809	return;
810	}
811
812	/* put_object_in_sack presumes that necessary sanity checking
813	* has already been done (eg, it can be picked up and fits in
814	* in a sack, so check for those things. We should also check
815	* an make sure env is in fact a container for that matter.
816	*/
817	if (env->type == CONTAINER
818	&& can_pick (pl, op)
819	&& sack_can_hold (pl, env, op, nrof))
820	put_object_in_sack (pl, env, op, nrof);
821	}
822