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->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)
{
  char item_n[MAX_BUF];
  const char *item_p;

  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);

  int len;

  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);

  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:	1.79
Committed:	Mon Oct 12 14:00:59 2009 UTC (14 years, 7 months ago) by root
Content type:	text/plain
Branch:	MAIN
CVS Tags:	rel-2_81
Changes since 1.78:	+7 -6 lines
Log Message:	clarify license
#	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->type == CONTAINER && ((op->env && op->env->container == op) \|\| (!op->env && QUERY_FLAG (op, FLAG_APPLIED))))
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	char item_n[MAX_BUF];
120	const char *item_p;
121
122	int flags = query_flags (head);
123	if (QUERY_FLAG (head, FLAG_NO_PICK))
124	flags \|= F_NOPICK;
125
126	ns.send_face (head->face, -50);
127	ns.flush_fx ();
128
129	if (QUERY_FLAG (head, FLAG_ANIMATE) && !ns.anims_sent[head->animation_id])
130	ns.send_animation (head->animation_id);
131
132	sl << uint32 (head->count)
133	<< uint32 (flags)
134	<< uint32 (QUERY_FLAG (head, FLAG_NO_PICK) ? -1 : head->client_weight ())
135	<< uint32 (head->face);
136
137	int len;
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	int anim_speed = !head->flag [FLAG_ANIMATE] ? 0
162	: head->anim_speed ? clamp (head->anim_speed, 1, 255)
163	: 1. / clamp (fabs (head->speed), 1./255., 1./1.);
164
165	sl << uint8 (anim_speed)
166	<< uint32 (head->nrof);
167
168	if (ns.itemcmd == 2)
169	sl << uint16 (head->client_type);
170	}
171
172	static faceidx
173	need_face_now (player pl, const char name)
174	{
175	faceidx face = face_find (name, empty_face);
176
177	pl->ns->send_face (face, -50);
178	pl->ns->flush_fx ();
179
180	return face;
181	}
182
183	#define FINGER_UP "finger_up.x11"
184	#define FINGER_DOWN "finger_down.x11"
185
186	/**
187	* Send the look window. Don't need to do animations here
188	* This sends all the faces to the client, not just updates. This is
189	* because object ordering would otherwise be inconsistent.
190	*/
191	void
192	esrv_draw_look (player *pl)
193	{
194	object *ob = pl->ob;
195
196	if (!pl->ns->update_look)
197	{
198	LOG (llevDebug, "esrv_draw_look called when update_look was not set (player %s)\n", &ob->name);
199	return;
200	}
201
202	pl->ns->update_look = 0;
203
204	if (QUERY_FLAG (ob, FLAG_REMOVED)
205	\|\| !ob->map
206	\|\| ob->map->in_memory != MAP_ACTIVE
207	\|\| out_of_map (ob->map, ob->x, ob->y))
208	return;
209
210	pl->ns->send_packet ("delinv 0");
211
212	packet sl;
213	sl.printf ("item%d ", pl->ns->itemcmd);
214
215	sl << uint32 (0);
216
217	int start_pos = pl->ns->look_position;
218	bool dirty = false;
219
220	mapspace &ms = ob->ms ();
221
222	// manage a ring buffer of the "last FLOORBOX_PAGESIZE" items and
223	// start from the top
224	object *items [FLOORBOX_PAGESIZE];
225	int item_idx = 0, item_cnt = 0;
226	int pos = 0;
227
228	// find our items by walking down
229	object *item = ms.top;
230
231	for (; item && item_cnt < FLOORBOX_PAGESIZE; item = item->below)
232	{
233	if (!item->client_visible ())
234	continue;
235
236	if (++pos < start_pos)
237	continue;
238
239	// record item
240	items [item_idx] = item; item_idx = item_idx < FLOORBOX_PAGESIZE ? item_idx + 1 : 0;
241	item_cnt++;
242
243	// stop at first floor
244	if (item->flag [FLAG_IS_FLOOR])
245	{
246	// we are finished, don't append "next group of items"
247	// by setting item to ms.bot it becomes zero which is checked after the while loop
248	item = ms.bot;
249	}
250	}
251
252	// see if there are more if we cared - we ignore invisible objects
253	if (item)
254	{
255	/* What we basically do is make a 'fake' object - when the user applies it,
256	* we notice the special tag the object has, and act accordingly.
257	*/
258	sl << uint32 (0x80000000 \| (start_pos + FLOORBOX_PAGESIZE))
259	<< uint32 (0)
260	<< uint32 ((uint32) - 1)
261	<< uint32 (need_face_now (pl, FINGER_DOWN))
262	<< data8 ("Apply this to see the items below")
263	<< uint16 (0)
264	<< uint8 (0)
265	<< uint32 (0);
266
267	if (pl->ns->itemcmd == 2)
268	sl << uint16 (0);
269
270	dirty = true;
271	}
272
273	// now send out all items in the ring buffer in reverse order
274	while (item_cnt)
275	{
276	--item_cnt;
277	item_idx = (item_idx ? item_idx : FLOORBOX_PAGESIZE) - 1;
278	object *item = items [item_idx];
279
280	add_object_to_socklist (*pl->ns, sl, item->head_ ());
281
282	dirty = true;
283
284	// if packet got too large, send it and begin a new one
285	if (sl.length () > MAXSOCKBUF - MAXITEMLEN)
286	{
287	pl->ns->send_packet (sl);
288
289	sl.reset ();
290	sl.printf ("item%d ", pl->ns->itemcmd);
291	sl << uint32 (0);
292
293	dirty = false;
294	}
295	}
296
297	if (start_pos)
298	{
299	sl << uint32 (0x80000000 \| (start_pos - FLOORBOX_PAGESIZE))
300	<< uint32 (0)
301	<< sint32 (-1)
302	<< uint32 (need_face_now (pl, FINGER_UP))
303	<< data8 ("Apply this to see the items higher up")
304	<< uint16 (0)
305	<< uint8 (0)
306	<< uint32 (0);
307
308	if (pl->ns->itemcmd == 2)
309	sl << uint16 (0);
310
311	dirty = true;
312	}
313
314	if (dirty)
315	pl->ns->send_packet (sl);
316	}
317
318	/**
319	* Sends whole inventory.
320	*/
321	void
322	esrv_send_inventory (object pl, object op)
323	{
324	if (!pl->contr->ns)//D
325	return;
326
327	int got_one = 0;
328
329	pl->contr->ns->send_packet_printf ("delinv %d", op->count);
330
331	packet sl;
332	sl.printf ("item%d ", pl->contr->ns->itemcmd);
333
334	sl << uint32 (op->count);
335
336	for (object *tmp = op->inv; tmp; tmp = tmp->below)
337	{
338	object *head;
339
340	if (tmp->head)
341	head = tmp->head;
342	else
343	head = tmp;
344
345	if (head->client_visible ())
346	{
347	add_object_to_socklist (*pl->contr->ns, sl, head);
348
349	got_one++;
350
351	/* IT is possible for players to accumulate a huge amount of
352	* items (especially with some of the bags out there) to
353	* overflow the buffer. IF so, send multiple item commands.
354	*/
355	if (sl.length () > MAXSOCKBUF - MAXITEMLEN)
356	{
357	pl->contr->ns->send_packet (sl);
358
359	sl.reset ();
360	sl.printf ("item%d ", pl->contr->ns->itemcmd);
361	sl << uint32 (op->count);
362	got_one = 0;
363	}
364	}
365	}
366
367	if (got_one)
368	pl->contr->ns->send_packet (sl);
369	}
370
371	/**
372	* Updates object op for player pl.
373	*
374	* flags is a list of values to update
375	* to the client (as defined in newclient.h - might as well use the
376	* same value both places.
377	*/
378	void
379	esrv_update_item (int flags, object pl, object op)
380	{
381	/* If we have a request to send the player item, skip a few checks. */
382	if (op != pl && !op->client_visible ())
383	return;
384
385	client *ns = pl->contr->ns;
386	if (!ns)
387	return;
388
389	packet sl ("upditem");
390
391	sl << uint8 (flags);
392
393	op = op->head_ ();
394
395	sl << uint32 (op->count);
396
397	if (flags & UPD_LOCATION)
398	sl << uint32 (op->env ? op->env->count : 0);
399
400	if (flags & UPD_FLAGS)
401	sl << uint32 (query_flags (op));
402
403	if (flags & UPD_WEIGHT)
404	{
405	sint32 weight = op->client_weight ();
406
407	if (op == pl)
408	ns->last_weight = weight;
409
410	sl << uint32 (weight);
411	}
412
413	if (flags & UPD_FACE)
414	{
415	ns->send_face (op->face, -50);
416	ns->flush_fx ();
417	sl << uint32 (op->face);
418	}
419
420	if (flags & UPD_NAME)
421	{
422	int len;
423	const char *item_p;
424	char item_n[127 * 2];
425
426	if (!op->custom_name)
427	{
428	len = assign (item_n, query_base_name (op, 0), 127);
429	item_p = query_base_name (op, 1);
430	}
431	else
432	{
433	len = assign (item_n, &op->custom_name, 127);
434	item_p = &op->custom_name;
435	}
436
437	len += assign (item_n + len, item_p, 127);
438
439	sl << data8 (item_n, len);
440	}
441
442	if (flags & UPD_ANIM)
443	sl << uint16 (op->animation_id);
444
445	if (flags & UPD_ANIMSPEED)
446	{
447	int anim_speed = 0;
448
449	if (QUERY_FLAG (op, FLAG_ANIMATE))
450	{
451	if (op->anim_speed)
452	anim_speed = op->anim_speed;
453	else
454	{
455	if (fabs (op->speed) < 0.001)
456	anim_speed = 255;
457	else if (fabs (op->speed) >= 1.0)
458	anim_speed = 1;
459	else
460	anim_speed = (int) (1.0 / fabs (op->speed));
461	}
462
463	if (anim_speed > 255)
464	anim_speed = 255;
465	}
466
467	sl << uint8 (anim_speed);
468	}
469
470	if (flags & UPD_NROF)
471	sl << uint32 (op->nrof);
472
473	pl->contr->ns->send_packet (sl);
474	}
475
476	/**
477	* Sends item's info to player.
478	*/
479	void
480	esrv_send_item (object pl, object op)
481	{
482	if (!pl->contr->ns)
483	return;
484
485	/* We only send 'visible' objects to the client, and sometimes the player */
486	if (!op->client_visible () && op->type != PLAYER)
487	return;
488
489	packet sl;
490
491	sl.printf ("item%d ", pl->contr->ns->itemcmd);
492
493	op = op->head_ ();
494
495	sl << uint32 (op->env ? op->env->count : 0);
496
497	add_object_to_socklist (*pl->contr->ns, sl, op);
498
499	pl->contr->ns->send_packet (sl);
500	}
501
502	/**
503	* Tells the client to delete an item.
504	*/
505	void
506	esrv_del_item (player *pl, int tag)
507	{
508	if (!pl->ns)
509	return;
510
511	packet sl ("delitem");
512
513	sl << uint32 (tag);
514
515	pl->ns->send_packet (sl);
516	}
517
518
519	/*******************************************************************************
520	*
521	* Client has requested us to do something with an object.
522	*
523	******************************************************************************/
524
525	/**
526	* Takes a player and object count (tag) and returns the actual object
527	* pointer, or null if it can't be found.
528	*/
529	object *
530	esrv_get_ob_from_count (object *pl, tag_t count)
531	{
532	if (pl->count == count)
533	return pl;
534
535	for (object *op = pl->inv; op; op = op->below)
536	if (op->count == count)
537	return op;
538	else if (op->type == CONTAINER && pl->container == op)
539	for (object *tmp = op->inv; tmp; tmp = tmp->below)
540	if (tmp->count == count)
541	return tmp;
542
543	for (object *op = GET_MAP_OB (pl->map, pl->x, pl->y); op; op = op->above)
544	if (op->head && op->head->count == count)
545	return op;
546	else if (op->count == count)
547	return op;
548	else if (op->type == CONTAINER && pl->container == op)
549	for (object *tmp = op->inv; tmp; tmp = tmp->below)
550	if (tmp->count == count)
551	return tmp;
552
553	#if 0
554	/* If the high bit is set, player examined a pseudo object. */
555	if (count & 0x80000000)
556	return 0;
557	#endif
558
559	return 0;
560	}
561
562	/** Client wants to examine some object. So lets do so. */
563	void
564	ExamineCmd (char buf, int len, player pl)
565	{
566	tag_t tag = atoi (buf);
567
568	/* If the high bit is set, player applied a pseudo object. */
569	if (tag & 0x80000000)
570	{
571	pl->ns->look_position = tag & 0x7fffffff;
572	pl->ns->floorbox_update ();
573	return;
574	}
575
576	object *op = esrv_get_ob_from_count (pl->ob, tag);
577
578	if (!op)
579	{
580	LOG (llevDebug, "Player '%s' tried to examine the unknown object (%ld)\n", &pl->ob->name, tag);
581	return;
582	}
583
584	examine (pl->ob, op);
585	}
586
587	/** Client wants to examine some object. So lets do so. */
588	void
589	ExCmd (char buf, int len, player pl)
590	{
591	tag_t tag = atoi (buf);
592
593	if (object *op = esrv_get_ob_from_count (pl->ob, tag))
594	{
595	std::string s = op->describe (pl->ob);
596
597	packet sl ("ex");
598	sl << ber32 (tag)
599	<< data (*pl->expand_cfpod (s.c_str ()));
600
601	pl->ns->send_packet (sl);
602	}
603	}
604
605	/** Client wants to apply some object. Lets do so. */
606	void
607	ApplyCmd (char buf, int len, player pl)
608	{
609	tag_t tag = atoi (buf);
610
611	/* If the high bit is set, player applied a pseudo object. */
612	if (tag & 0x80000000)
613	{
614	pl->ns->look_position = tag & 0x7fffffff;
615	pl->ns->floorbox_update ();
616	return;
617	}
618
619	object *op = esrv_get_ob_from_count (pl->ob, tag);
620
621	if (!op)
622	{
623	LOG (llevDebug, "Player '%s' tried to apply the unknown object (%d)\n", &pl->ob->name, tag);
624	return;
625	}
626
627	player_apply (pl->ob, op, 0, 0);
628	}
629
630	/** Client wants to lock some object. Lets do so. */
631	void
632	LockItem (char data, int len, player pl)
633	{
634	int flag = data[0];
635	tag_t tag = net_uint32 ((uint8 *)data + 1);
636	object *op = esrv_get_ob_from_count (pl->ob, tag);
637
638	if (!op)
639	{
640	pl->failmsg ("Could not find object to lock/unlock");
641	return;
642	}
643
644	if (!flag)
645	CLEAR_FLAG (op, FLAG_INV_LOCKED);
646	else
647	SET_FLAG (op, FLAG_INV_LOCKED);
648
649	esrv_update_item (UPD_FLAGS, pl->ob, op);
650	}
651
652	/** Client wants to mark some object. Lets do so. */
653	void
654	MarkItem (char data, int len, player pl)
655	{
656	tag_t tag = net_uint32 ((uint8 *)data);
657	object *op = esrv_get_ob_from_count (pl->ob, tag);
658
659	if (!op)
660	{
661	pl->failmsg ("Could not find object to mark");
662	return;
663	}
664
665	pl->mark = op;
666	pl->ob->statusmsg (format ("Marked item %s", query_name (op)));
667	}
668
669	/**
670	* look_at prints items on the specified square.
671	*
672	* [ removed EARTHWALL check and added check for containers inventory.
673	* Tero.Haatanen@lut.fi ]
674	*/
675	static void
676	look_at (player *pl, int dx, int dy)
677	{
678	dynbuf_text &buf = msg_dynbuf; buf.clear ();
679	object *ob = pl->ob;
680
681	if (!pl->observe->map)
682	return;
683
684	bool wiz = ob->flag [FLAG_WIZ] \|\| ob->flag [FLAG_WIZLOOK];
685
686	mapxy pos (pl->observe);
687	pos.move (dx, dy);
688
689	if (wiz)
690	{
691	if (pos.normalise ())
692	{
693	mapspace &ms = *pos;
694	ms.update ();
695
696	buf.printf (" map: %s%+d%+d (%+d%+d)\n"
697	" smell %u/%u; flags %x; light %d; block %x; slow %x; on %x; off %x; volume %lld\n\n",
698	&pos.m->path, pos.x, pos.y, dx, dy,
699	(unsigned int)ms.smell, (unsigned int)mapspace::smellcount, ms.flags (), ms.light,
700	ms.move_block, ms.move_slow, ms.move_on, ms.move_off, (long long)ms.volume ()
701	);
702	}
703	else
704	buf << "off-map\n\n";
705	}
706
707	int darkness = pl->blocked_los (dx, dy);
708
709	if (darkness == LOS_BLOCKED)
710	buf << "You cannot see that place from your position. H<Something is in between or it is too far away.>";
711	else if (darkness == LOS_MAX)
712	buf << "That place is too dark to see anything. H<Move nearer or find better lighting.>";
713	else
714	{
715	if (pos.normalise ())
716	for (object *tmp = pos->top; tmp; tmp = tmp->below)
717	{
718	if (tmp->invisible && !QUERY_FLAG (ob, FLAG_WIZ))
719	continue;
720
721	if (wiz)
722	buf.printf (" - %s (%d).\n", query_name (tmp), tmp->count);
723	else
724	buf.printf (" - %s.\n", query_name (tmp));
725
726	object *head = tmp->head_ ();
727
728	if (head->inv)
729	if ((head->type != CONTAINER && head->type != FLESH)
730	\|\| QUERY_FLAG (ob, FLAG_WIZ))
731	buf << head->query_inventory (ob, " ");
732
733	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR) && !wiz) /* don't continue under the floor */
734	break;
735	}
736	}
737
738	if (buf.empty ())
739	buf << "You see nothing there.";
740
741	pl->infobox (MSG_CHANNEL ("lookat"), buf);
742	}
743
744	/** Client wants to look at some object. Lets do so. */
745	void
746	LookAt (char buf, int len, player pl)
747	{
748	char *cp;
749
750	int dx = atoi (buf);
751	if (!(cp = strchr (buf, ' ')))
752	return;
753
754	int dy = atoi (cp);
755
756	look_at (pl, dx, dy);
757	}
758
759	/** Move an object to a new location */
760	void
761	esrv_move_object (object *pl, tag_t to, tag_t tag, long nrof)
762	{
763	object *op = esrv_get_ob_from_count (pl, tag);
764	if (!op)
765	{
766	LOG (llevDebug, "Player '%s' tried to move an unknown object (%ld)\n", &pl->name, tag);
767	return;
768	}
769
770	if (!to)
771	{ /* drop it to the ground */
772	if (op->map && !op->env)
773	return;
774
775	/* If it is an active container, then we should drop all objects
776	* in the container and not the container itself.
777	*/
778	if (op->inv && QUERY_FLAG (op, FLAG_APPLIED))
779	{
780	int cnt = MAX_ITEM_PER_DROP;
781
782	for (object *current = op->inv; current && cnt--; )
783	{
784	object *next = current->below;
785	drop_object (pl, current, 0);
786	current = next;
787	}
788
789	if (cnt <= 0)
790	op->failmsg ("Only dropped some items, can't drop that many items at once.");
791	}
792	else
793	drop_object (pl, op, nrof);
794
795	return;
796	}
797	else if (to == pl->count)
798	{ /* pick it up to the inventory */
799	/* return if player has already picked it up */
800	if (op->env == pl)
801	return;
802
803	pl->contr->count = nrof;
804	pick_up (pl, op);
805	return;
806	}
807
808	object *env = esrv_get_ob_from_count (pl, to);
809	if (!env)
810	{
811	LOG (llevDebug, "Player '%s' tried to move object to the unknown location (%d)\n", &pl->name, to);
812	return;
813	}
814
815	/* put_object_in_sack presumes that necessary sanity checking
816	* has already been done (eg, it can be picked up and fits in
817	* in a sack, so check for those things. We should also check
818	* an make sure env is in fact a container for that matter.
819	*/
820	if (env->type == CONTAINER
821	&& can_pick (pl, op)
822	&& sack_can_hold (pl, env, op, nrof))
823	put_object_in_sack (pl, env, op, nrof);
824	}
825