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 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 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);

  SET_FLAG (head, FLAG_CLIENT_SENT);
}

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;

  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 | logBacktrace, "We have not sent item %s (%d)\n", &op->name, op->count);

  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->flag [FLAG_NO_PICK] ? -1 : op->client_weight ();

      if (op)
        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[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->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);
  SET_FLAG (op, FLAG_CLIENT_SENT);
}

/**
 * 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);

      if (msg_is_special (s.c_str (), false))
        cfperl_expand_cfpod (pl, s);

      packet sl ("ex");
      sl << ber32 (tag) << 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;
  object *ob = pl->ob;

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

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

  if (pos.normalise ())
    for (object *tmp = pos->top; tmp; tmp = tmp->below)
      {
        if (tmp->invisible && !QUERY_FLAG (ob, FLAG_WIZ))
          continue;

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

  if (buf.empty ())
    pl->failmsg ("You see nothing there.");
  else
    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);

  if (player *opl = pl->observe->contr)
    if (client *ns = opl->ns)
      {
        if (fabs (dx) > ns->mapx / 2 || fabs (dy) > ns->mapy / 2)
          return;

        if (opl->blocked_los[dx + ns->mapx / 2][dy + ns->mapy / 2])
          return;
      }

  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:	1.69
Committed:	Mon Jul 14 23:47:06 2008 UTC (15 years, 10 months ago) by root
Content type:	text/plain
Branch:	MAIN
CVS Tags:	rel-2_6, rel-2_61
Changes since 1.68:	+5 -147 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
9	* it under the terms of the GNU General Public License as published by
10	* the Free Software Foundation, either version 3 of the License, or
11	* (at your option) any later version.
12	*
13	* This program is distributed in the hope that it will be useful,
14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16	* GNU General Public License for more details.
17	*
18	* You should have received a copy of the GNU General Public License
19	* along with this program. If not, see <http://www.gnu.org/licenses/>.
20	*
21	* The authors can be reached via e-mail to <support@deliantra.net>
22	*/
23
24	/**
25	* \file
26	* Client/server logic.
27	*
28	* \date 2003-12-02
29	*
30	* This contains item logic for client/server. It doesn't contain
31	* the actual commands that send the data, but does contain
32	* the logic for what items should be sent.
33	*/
34
35	#include <global.h>
36	#include <object.h>
37	#include <sproto.h>
38
39	/** This is the maximum number of bytes we expect any one item to take up */
40	#define MAXITEMLEN 300
41
42	/*******************************************************************************
43	*
44	* Functions related to sending object data to the client.
45	*
46	******************************************************************************/
47
48	/**
49	* This is a similar to query_name, but returns flags
50	* to be sent to client.
51	*/
52	unsigned int
53	query_flags (object *op)
54	{
55	unsigned int flags = 0;
56
57	if (QUERY_FLAG (op, FLAG_APPLIED))
58	switch (op->type)
59	{
60	case BOW:
61	case WAND:
62	case ROD:
63	case HORN:
64	flags = a_readied;
65	break;
66	case WEAPON:
67	flags = a_wielded;
68	break;
69	case SKILL:
70	case ARMOUR:
71	case HELMET:
72	case SHIELD:
73	case RING:
74	case BOOTS:
75	case GLOVES:
76	case AMULET:
77	case GIRDLE:
78	case BRACERS:
79	case CLOAK:
80	flags = a_worn;
81	break;
82	case CONTAINER:
83	flags = a_active;
84	break;
85	default:
86	flags = a_applied;
87	break;
88	}
89
90	if (op->type == CONTAINER && ((op->env && op->env->container == op) \|\| (!op->env && QUERY_FLAG (op, FLAG_APPLIED))))
91	flags \|= F_OPEN;
92
93	if (QUERY_FLAG (op, FLAG_KNOWN_CURSED))
94	{
95	if (QUERY_FLAG (op, FLAG_DAMNED))
96	flags \|= F_DAMNED;
97	else if (QUERY_FLAG (op, FLAG_CURSED))
98	flags \|= F_CURSED;
99	}
100
101	if (QUERY_FLAG (op, FLAG_KNOWN_MAGICAL) && !QUERY_FLAG (op, FLAG_IDENTIFIED))
102	flags \|= F_MAGIC;
103	if (QUERY_FLAG (op, FLAG_UNPAID))
104	flags \|= F_UNPAID;
105	if (QUERY_FLAG (op, FLAG_INV_LOCKED))
106	flags \|= F_LOCKED;
107
108	return flags;
109	}
110
111	/* Used in the send_look to put object head into packet
112	* sl for socket ns. Need socket to know if we need to send
113	* animation of face to the client.
114	*/
115	static void
116	add_object_to_socklist (client &ns, packet &sl, object *head)
117	{
118	char item_n[MAX_BUF];
119	const char *item_p;
120
121	int flags = query_flags (head);
122	if (QUERY_FLAG (head, FLAG_NO_PICK))
123	flags \|= F_NOPICK;
124
125	ns.send_face (head->face, -50);
126	ns.flush_fx ();
127
128	if (QUERY_FLAG (head, FLAG_ANIMATE) && !ns.anims_sent[head->animation_id])
129	ns.send_animation (head->animation_id);
130
131	sl << uint32 (head->count)
132	<< uint32 (flags)
133	<< uint32 (QUERY_FLAG (head, FLAG_NO_PICK) ? -1 : head->client_weight ())
134	<< uint32 (head->face);
135
136	int len;
137
138	if (!head->custom_name)
139	{
140	strncpy (item_n, query_base_name (head, 0), 127);
141	item_n[127] = 0;
142	len = strlen (item_n);
143	item_p = query_base_name (head, 1);
144	}
145	else
146	{
147	strncpy (item_n, head->custom_name, 127);
148	item_n[127] = 0;
149	len = strlen (item_n);
150	item_p = head->custom_name;
151	}
152
153	strncpy (item_n + len + 1, item_p, 127);
154	item_n[254] = 0;
155	len += strlen (item_n + 1 + len) + 1;
156
157	sl << data8 (item_n, len)
158	<< uint16 (head->animation_id);
159
160	int anim_speed = !head->flag [FLAG_ANIMATE] ? 0
161	: head->anim_speed ? clamp (head->anim_speed, 1, 255)
162	: 1. / clamp (fabs (head->speed), 1./255., 1./1.);
163
164	sl << uint8 (anim_speed)
165	<< uint32 (head->nrof);
166
167	if (ns.itemcmd == 2)
168	sl << uint16 (head->client_type);
169
170	SET_FLAG (head, FLAG_CLIENT_SENT);
171	}
172
173	static faceidx
174	need_face_now (player pl, const char name)
175	{
176	faceidx face = face_find (name, empty_face);
177
178	pl->ns->send_face (face, -50);
179	pl->ns->flush_fx ();
180
181	return face;
182	}
183
184	#define FINGER_UP "finger_up.x11"
185	#define FINGER_DOWN "finger_down.x11"
186
187	/**
188	* Send the look window. Don't need to do animations here
189	* This sends all the faces to the client, not just updates. This is
190	* because object ordering would otherwise be inconsistent.
191	*/
192	void
193	esrv_draw_look (player *pl)
194	{
195	object *ob = pl->ob;
196
197	if (!pl->ns->update_look)
198	{
199	LOG (llevDebug, "esrv_draw_look called when update_look was not set (player %s)\n", &ob->name);
200	return;
201	}
202
203	pl->ns->update_look = 0;
204
205	if (QUERY_FLAG (ob, FLAG_REMOVED)
206	\|\| !ob->map
207	\|\| ob->map->in_memory != MAP_ACTIVE
208	\|\| out_of_map (ob->map, ob->x, ob->y))
209	return;
210
211	pl->ns->send_packet ("delinv 0");
212
213	packet sl;
214	sl.printf ("item%d ", pl->ns->itemcmd);
215
216	sl << uint32 (0);
217
218	int start_pos = pl->ns->look_position;
219	bool dirty = false;
220
221	mapspace &ms = ob->ms ();
222
223	// manage a ring buffer of the "last FLOORBOX_PAGESIZE" items and
224	// start from the top
225	object *items [FLOORBOX_PAGESIZE];
226	int item_idx = 0, item_cnt = 0;
227	int pos = 0;
228
229	// find our items by walking down
230	object *item = ms.top;
231
232	for (; item && item_cnt < FLOORBOX_PAGESIZE; item = item->below)
233	{
234	if (!item->client_visible ())
235	continue;
236
237	if (++pos < start_pos)
238	continue;
239
240	// record item
241	items [item_idx] = item; item_idx = item_idx < FLOORBOX_PAGESIZE ? item_idx + 1 : 0;
242	item_cnt++;
243
244	// stop at first floor
245	if (item->flag [FLAG_IS_FLOOR])
246	{
247	// we are finished, don't append "next group of items"
248	// by setting item to ms.bot it becomes zero which is checked after the while loop
249	item = ms.bot;
250	}
251	}
252
253	// see if there are more if we cared - we ignore invisible objects
254	if (item)
255	{
256	/* What we basically do is make a 'fake' object - when the user applies it,
257	* we notice the special tag the object has, and act accordingly.
258	*/
259	sl << uint32 (0x80000000 \| (start_pos + FLOORBOX_PAGESIZE))
260	<< uint32 (0)
261	<< uint32 ((uint32) - 1)
262	<< uint32 (need_face_now (pl, FINGER_DOWN))
263	<< data8 ("Apply this to see the items below")
264	<< uint16 (0)
265	<< uint8 (0)
266	<< uint32 (0);
267
268	if (pl->ns->itemcmd == 2)
269	sl << uint16 (0);
270
271	dirty = true;
272	}
273
274	// now send out all items in the ring buffer in reverse order
275	while (item_cnt)
276	{
277	--item_cnt;
278	item_idx = (item_idx ? item_idx : FLOORBOX_PAGESIZE) - 1;
279	object *item = items [item_idx];
280
281	add_object_to_socklist (*pl->ns, sl, item->head_ ());
282
283	dirty = true;
284
285	// if packet got too large, send it and begin a new one
286	if (sl.length () > MAXSOCKBUF - MAXITEMLEN)
287	{
288	pl->ns->send_packet (sl);
289
290	sl.reset ();
291	sl.printf ("item%d ", pl->ns->itemcmd);
292	sl << uint32 (0);
293
294	dirty = false;
295	}
296	}
297
298	if (start_pos)
299	{
300	sl << uint32 (0x80000000 \| (start_pos - FLOORBOX_PAGESIZE))
301	<< uint32 (0)
302	<< sint32 (-1)
303	<< uint32 (need_face_now (pl, FINGER_UP))
304	<< data8 ("Apply this to see the items higher up")
305	<< uint16 (0)
306	<< uint8 (0)
307	<< uint32 (0);
308
309	if (pl->ns->itemcmd == 2)
310	sl << uint16 (0);
311
312	dirty = true;
313	}
314
315	if (dirty)
316	pl->ns->send_packet (sl);
317	}
318
319	/**
320	* Sends whole inventory.
321	*/
322	void
323	esrv_send_inventory (object pl, object op)
324	{
325	if (!pl->contr->ns)//D
326	return;
327
328	int got_one = 0;
329
330	pl->contr->ns->send_packet_printf ("delinv %d", op->count);
331
332	packet sl;
333	sl.printf ("item%d ", pl->contr->ns->itemcmd);
334
335	sl << uint32 (op->count);
336
337	for (object *tmp = op->inv; tmp; tmp = tmp->below)
338	{
339	object *head;
340
341	if (tmp->head)
342	head = tmp->head;
343	else
344	head = tmp;
345
346	if (head->client_visible ())
347	{
348	add_object_to_socklist (*pl->contr->ns, sl, head);
349
350	got_one++;
351
352	/* IT is possible for players to accumulate a huge amount of
353	* items (especially with some of the bags out there) to
354	* overflow the buffer. IF so, send multiple item commands.
355	*/
356	if (sl.length () > MAXSOCKBUF - MAXITEMLEN)
357	{
358	pl->contr->ns->send_packet (sl);
359
360	sl.reset ();
361	sl.printf ("item%d ", pl->contr->ns->itemcmd);
362	sl << uint32 (op->count);
363	got_one = 0;
364	}
365	}
366	}
367
368	if (got_one)
369	pl->contr->ns->send_packet (sl);
370	}
371
372	/**
373	* Updates object op for player pl.
374	*
375	* flags is a list of values to update
376	* to the client (as defined in newclient.h - might as well use the
377	* same value both places.
378	*/
379	void
380	esrv_update_item (int flags, object pl, object op)
381	{
382	/* If we have a request to send the player item, skip a few checks. */
383	if (op != pl && !op->client_visible ())
384	return;
385
386	client *ns = pl->contr->ns;
387	if (!ns)
388	return;
389
390	if (!QUERY_FLAG (op, FLAG_CLIENT_SENT))
391	/* FLAG_CLIENT_SENT is debug only. We are using it to see where
392	* this is happening - we can set a breakpoint here in the debugger
393	* and track back the call.
394	*/
395	LOG (llevDebug \| logBacktrace, "We have not sent item %s (%d)\n", &op->name, op->count);
396
397	packet sl ("upditem");
398
399	sl << uint8 (flags);
400
401	op = op->head_ ();
402
403	sl << uint32 (op->count);
404
405	if (flags & UPD_LOCATION)
406	sl << uint32 (op->env ? op->env->count : 0);
407
408	if (flags & UPD_FLAGS)
409	sl << uint32 (query_flags (op));
410
411	if (flags & UPD_WEIGHT)
412	{
413	sint32 weight = op->flag [FLAG_NO_PICK] ? -1 : op->client_weight ();
414
415	if (op)
416	ns->last_weight = weight;
417
418	sl << uint32 (weight);
419	}
420
421	if (flags & UPD_FACE)
422	{
423	ns->send_face (op->face, -50);
424	ns->flush_fx ();
425	sl << uint32 (op->face);
426	}
427
428	if (flags & UPD_NAME)
429	{
430	int len;
431	const char *item_p;
432	char item_n[MAX_BUF];
433
434	if (!op->custom_name)
435	{
436	strncpy (item_n, query_base_name (op, 0), 127);
437	item_n[127] = 0;
438	len = strlen (item_n);
439	item_p = query_base_name (op, 1);
440	}
441	else
442	{
443	strncpy (item_n, op->custom_name, 127);
444	item_n[127] = 0;
445	len = strlen (item_n);
446	item_p = op->custom_name;
447	}
448
449	strncpy (item_n + len + 1, item_p, 127);
450	item_n[254] = 0;
451	len += strlen (item_n + 1 + len) + 1;
452
453	sl << data8 (item_n, len);
454	}
455
456	if (flags & UPD_ANIM)
457	sl << uint16 (op->animation_id);
458
459	if (flags & UPD_ANIMSPEED)
460	{
461	int anim_speed = 0;
462
463	if (QUERY_FLAG (op, FLAG_ANIMATE))
464	{
465	if (op->anim_speed)
466	anim_speed = op->anim_speed;
467	else
468	{
469	if (fabs (op->speed) < 0.001)
470	anim_speed = 255;
471	else if (fabs (op->speed) >= 1.0)
472	anim_speed = 1;
473	else
474	anim_speed = (int) (1.0 / fabs (op->speed));
475	}
476
477	if (anim_speed > 255)
478	anim_speed = 255;
479	}
480
481	sl << uint8 (anim_speed);
482	}
483
484	if (flags & UPD_NROF)
485	sl << uint32 (op->nrof);
486
487	pl->contr->ns->send_packet (sl);
488	}
489
490	/**
491	* Sends item's info to player.
492	*/
493	void
494	esrv_send_item (object pl, object op)
495	{
496	if (!pl->contr->ns)
497	return;
498
499	/* We only send 'visible' objects to the client, and sometimes the player */
500	if (!op->client_visible () && op->type != PLAYER)
501	return;
502
503	packet sl;
504
505	sl.printf ("item%d ", pl->contr->ns->itemcmd);
506
507	op = op->head_ ();
508
509	sl << uint32 (op->env ? op->env->count : 0);
510
511	add_object_to_socklist (*pl->contr->ns, sl, op);
512
513	pl->contr->ns->send_packet (sl);
514	SET_FLAG (op, FLAG_CLIENT_SENT);
515	}
516
517	/**
518	* Tells the client to delete an item.
519	*/
520	void
521	esrv_del_item (player *pl, int tag)
522	{
523	if (!pl->ns)
524	return;
525
526	packet sl ("delitem");
527
528	sl << uint32 (tag);
529
530	pl->ns->send_packet (sl);
531	}
532
533
534	/*******************************************************************************
535	*
536	* Client has requested us to do something with an object.
537	*
538	******************************************************************************/
539
540	/**
541	* Takes a player and object count (tag) and returns the actual object
542	* pointer, or null if it can't be found.
543	*/
544	object *
545	esrv_get_ob_from_count (object *pl, tag_t count)
546	{
547	if (pl->count == count)
548	return pl;
549
550	for (object *op = pl->inv; op; op = op->below)
551	if (op->count == count)
552	return op;
553	else if (op->type == CONTAINER && pl->container == op)
554	for (object *tmp = op->inv; tmp; tmp = tmp->below)
555	if (tmp->count == count)
556	return tmp;
557
558	for (object *op = GET_MAP_OB (pl->map, pl->x, pl->y); op; op = op->above)
559	if (op->head && op->head->count == count)
560	return op;
561	else if (op->count == count)
562	return op;
563	else if (op->type == CONTAINER && pl->container == op)
564	for (object *tmp = op->inv; tmp; tmp = tmp->below)
565	if (tmp->count == count)
566	return tmp;
567
568	#if 0
569	/* If the high bit is set, player examined a pseudo object. */
570	if (count & 0x80000000)
571	return 0;
572	#endif
573
574	return 0;
575	}
576
577	/** Client wants to examine some object. So lets do so. */
578	void
579	ExamineCmd (char buf, int len, player pl)
580	{
581	tag_t tag = atoi (buf);
582
583	/* If the high bit is set, player applied a pseudo object. */
584	if (tag & 0x80000000)
585	{
586	pl->ns->look_position = tag & 0x7fffffff;
587	pl->ns->floorbox_update ();
588	return;
589	}
590
591	object *op = esrv_get_ob_from_count (pl->ob, tag);
592
593	if (!op)
594	{
595	LOG (llevDebug, "Player '%s' tried to examine the unknown object (%ld)\n", &pl->ob->name, tag);
596	return;
597	}
598
599	examine (pl->ob, op);
600	}
601
602	/** Client wants to examine some object. So lets do so. */
603	void
604	ExCmd (char buf, int len, player pl)
605	{
606	tag_t tag = atoi (buf);
607
608	if (object *op = esrv_get_ob_from_count (pl->ob, tag))
609	{
610	std::string s = op->describe (pl->ob);
611
612	if (msg_is_special (s.c_str (), false))
613	cfperl_expand_cfpod (pl, s);
614
615	packet sl ("ex");
616	sl << ber32 (tag) << s.c_str ();
617
618	pl->ns->send_packet (sl);
619	}
620	}
621
622	/** Client wants to apply some object. Lets do so. */
623	void
624	ApplyCmd (char buf, int len, player pl)
625	{
626	tag_t tag = atoi (buf);
627
628	/* If the high bit is set, player applied a pseudo object. */
629	if (tag & 0x80000000)
630	{
631	pl->ns->look_position = tag & 0x7fffffff;
632	pl->ns->floorbox_update ();
633	return;
634	}
635
636	object *op = esrv_get_ob_from_count (pl->ob, tag);
637
638	if (!op)
639	{
640	LOG (llevDebug, "Player '%s' tried to apply the unknown object (%d)\n", &pl->ob->name, tag);
641	return;
642	}
643
644	player_apply (pl->ob, op, 0, 0);
645	}
646
647	/** Client wants to lock some object. Lets do so. */
648	void
649	LockItem (char data, int len, player pl)
650	{
651	int flag = data[0];
652	tag_t tag = net_uint32 ((uint8 *)data + 1);
653	object *op = esrv_get_ob_from_count (pl->ob, tag);
654
655	if (!op)
656	{
657	pl->failmsg ("Could not find object to lock/unlock");
658	return;
659	}
660
661	if (!flag)
662	CLEAR_FLAG (op, FLAG_INV_LOCKED);
663	else
664	SET_FLAG (op, FLAG_INV_LOCKED);
665
666	esrv_update_item (UPD_FLAGS, pl->ob, op);
667	}
668
669	/** Client wants to mark some object. Lets do so. */
670	void
671	MarkItem (char data, int len, player pl)
672	{
673	tag_t tag = net_uint32 ((uint8 *)data);
674	object *op = esrv_get_ob_from_count (pl->ob, tag);
675
676	if (!op)
677	{
678	pl->failmsg ("Could not find object to mark");
679	return;
680	}
681
682	pl->mark = op;
683	pl->ob->statusmsg (format ("Marked item %s", query_name (op)));
684	}
685
686	/**
687	* look_at prints items on the specified square.
688	*
689	* [ removed EARTHWALL check and added check for containers inventory.
690	* Tero.Haatanen@lut.fi ]
691	*/
692	static void
693	look_at (player *pl, int dx, int dy)
694	{
695	dynbuf_text buf;
696	object *ob = pl->ob;
697
698	if (!pl->observe->map)
699	return;
700
701	mapxy pos (pl->observe);
702	pos.move (dx, dy);
703
704	if (pos.normalise ())
705	for (object *tmp = pos->top; tmp; tmp = tmp->below)
706	{
707	if (tmp->invisible && !QUERY_FLAG (ob, FLAG_WIZ))
708	continue;
709
710	if (QUERY_FLAG (ob, FLAG_WIZ))
711	buf.printf ("- %s (%d).\n", query_name (tmp), tmp->count);
712	else
713	buf.printf ("- %s.\n", query_name (tmp));
714
715	object *head = tmp->head_ ();
716
717	if (head->inv)
718	if ((head->type != CONTAINER && head->type != FLESH)
719	\|\| QUERY_FLAG (ob, FLAG_WIZ))
720	buf << head->query_inventory (ob, " ");
721
722	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR) && !QUERY_FLAG (ob, FLAG_WIZ)) /* don't continue under the floor */
723	break;
724	}
725
726	if (buf.empty ())
727	pl->failmsg ("You see nothing there.");
728	else
729	pl->infobox (MSG_CHANNEL ("lookat"), buf);
730	}
731
732	/** Client wants to look at some object. Lets do so. */
733	void
734	LookAt (char buf, int len, player pl)
735	{
736	char *cp;
737
738	int dx = atoi (buf);
739	if (!(cp = strchr (buf, ' ')))
740	return;
741
742	int dy = atoi (cp);
743
744	if (player *opl = pl->observe->contr)
745	if (client *ns = opl->ns)
746	{
747	if (fabs (dx) > ns->mapx / 2 \|\| fabs (dy) > ns->mapy / 2)
748	return;
749
750	if (opl->blocked_los[dx + ns->mapx / 2][dy + ns->mapy / 2])
751	return;
752	}
753
754	look_at (pl, dx, dy);
755	}
756
757	/** Move an object to a new location */
758	void
759	esrv_move_object (object *pl, tag_t to, tag_t tag, long nrof)
760	{
761	object *op = esrv_get_ob_from_count (pl, tag);
762	if (!op)
763	{
764	LOG (llevDebug, "Player '%s' tried to move an unknown object (%ld)\n", &pl->name, tag);
765	return;
766	}
767
768	if (!to)
769	{ /* drop it to the ground */
770	if (op->map && !op->env)
771	return;
772
773	/* If it is an active container, then we should drop all objects
774	* in the container and not the container itself.
775	*/
776	if (op->inv && QUERY_FLAG (op, FLAG_APPLIED))
777	{
778	int cnt = MAX_ITEM_PER_DROP;
779
780	for (object *current = op->inv; current && cnt--; )
781	{
782	object *next = current->below;
783	drop_object (pl, current, 0);
784	current = next;
785	}
786
787	if (cnt <= 0)
788	op->failmsg ("Only dropped some items, can't drop that many items at once.");
789	}
790	else
791	drop_object (pl, op, nrof);
792
793	return;
794	}
795	else if (to == pl->count)
796	{ /* pick it up to the inventory */
797	/* return if player has already picked it up */
798	if (op->env == pl)
799	return;
800
801	pl->contr->count = nrof;
802	pick_up (pl, op);
803	return;
804	}
805
806	object *env = esrv_get_ob_from_count (pl, to);
807	if (!env)
808	{
809	LOG (llevDebug, "Player '%s' tried to move object to the unknown location (%d)\n", &pl->name, to);
810	return;
811	}
812
813	/* put_object_in_sack presumes that necessary sanity checking
814	* has already been done (eg, it can be picked up and fits in
815	* in a sack, so check for those things. We should also check
816	* an make sure env is in fact a container for that matter.
817	*/
818	if (env->type == CONTAINER
819	&& can_pick (pl, op)
820	&& sack_can_hold (pl, env, op, nrof))
821	put_object_in_sack (pl, env, op, nrof);
822	}
823