server/socket/item.C

/*
 * This file is part of Deliantra, the Roguelike Realtime MMORPG.
 * 
 * Copyright (©) 2005,2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
 * Copyright (©) 2002 Mark Wedel & Crossfire Development Team
 * Copyright (©) 1992 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. 
 */
static unsigned int
query_flags (object *op)
{
  unsigned int flags = 0;

  if (op->flag [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 (op->flag [FLAG_KNOWN_CURSED])
    {
      if (op->flag [FLAG_DAMNED])
        flags |= F_DAMNED;
      else if (op->flag [FLAG_CURSED])
        flags |= F_CURSED;
    }

  if (op->flag [FLAG_KNOWN_MAGICAL] && !op->flag [FLAG_IDENTIFIED])
    flags |= F_MAGIC;
  if (op->flag [FLAG_UNPAID])
    flags |= F_UNPAID;
  if (op->flag [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 (head->flag [FLAG_NO_PICK])
    flags |= F_NOPICK;

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

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

  sl << uint32 (head->count)
     << uint32 (flags)
     << uint32 (head->flag [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 (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 (ob->flag [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->flush_fx ();
          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->flush_fx ();
      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->flush_fx ();
              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->flush_fx ();
      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 (op->flag [FLAG_ANIMATE])
        {
          if (op->anim_speed)
            anim_speed = op->anim_speed;
          else
            {
              if (op->speed < 0.001)
                anim_speed = 255;
              else if (op->speed >= 1.0)
                anim_speed = 1;
              else
                anim_speed = 1. / 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->flush_fx ();
  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.
 */
static 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;
    }

  pl->ob->apply (op, AP_TOGGLE);
}

/** 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)
    op->clr_flag (FLAG_INV_LOCKED);
  else
    op->set_flag (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; items %d, 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, (int)ms.items (), (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 && !ob->flag [FLAG_WIZ])
              continue;

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

            object *head = tmp->head_ ();

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

            if (tmp->flag [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 && op->flag [FLAG_APPLIED])
        {
          int cnt = MAX_ITEM_PER_ACTION;

          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:	1.92
Committed:	Sun Apr 11 00:34:07 2010 UTC (14 years, 1 month ago) by root
Content type:	text/plain
Branch:	MAIN
Changes since 1.91:	+18 -18 lines
Log Message:	get rid of QUERY_FLAG/SET_FLAG/CLEAR_FLAG macros that I always hated
#	Content
1	/*
2	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
3	*
4	* Copyright (©) 2005,2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5	* Copyright (©) 2002 Mark Wedel & Crossfire Development Team
6	* Copyright (©) 1992 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	static unsigned int
54	query_flags (object *op)
55	{
56	unsigned int flags = 0;
57
58	if (op->flag [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 (op->flag [FLAG_KNOWN_CURSED])
95	{
96	if (op->flag [FLAG_DAMNED])
97	flags \|= F_DAMNED;
98	else if (op->flag [FLAG_CURSED])
99	flags \|= F_CURSED;
100	}
101
102	if (op->flag [FLAG_KNOWN_MAGICAL] && !op->flag [FLAG_IDENTIFIED])
103	flags \|= F_MAGIC;
104	if (op->flag [FLAG_UNPAID])
105	flags \|= F_UNPAID;
106	if (op->flag [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 (head->flag [FLAG_NO_PICK])
122	flags \|= F_NOPICK;
123
124	ns.send_face (head->face, -50);
125
126	if (head->flag [FLAG_ANIMATE] && !ns.anims_sent[head->animation_id])
127	ns.send_animation (head->animation_id);
128
129	sl << uint32 (head->count)
130	<< uint32 (flags)
131	<< uint32 (head->flag [FLAG_NO_PICK] ? -1 : head->client_weight ())
132	<< uint32 (head->face);
133
134	if (!head->custom_name)
135	{
136	const char *name;
137	uint8 *len = sl.cur++; // patch up length later
138
139	name = query_base_name (head, 0); sl << data (name, min (127, strlen (name)));
140	sl << uint8 (0);
141	name = query_base_name (head, 1); sl << data (name, min (127, strlen (name)));
142
143	*len = sl.cur - len - 1;
144	}
145	else
146	{
147	int len = min (head->custom_name.length (), 127);
148
149	sl << uint8 (len * 2 + 1)
150	<< data (head->custom_name, len)
151	<< uint8 (0)
152	<< data (head->custom_name, len);
153	}
154
155	sl << uint16 (head->animation_id);
156
157	int anim_speed = !head->flag [FLAG_ANIMATE] ? 0
158	: head->anim_speed ? clamp (head->anim_speed, 1, 255)
159	: 1. / clamp (head->speed, 1./255., 1./1.);
160
161	sl << uint8 (anim_speed)
162	<< uint32 (head->nrof);
163
164	if (ns.itemcmd == 2)
165	sl << uint16 (head->client_type);
166	}
167
168	static faceidx
169	need_face_now (player pl, const char name)
170	{
171	faceidx face = face_find (name, empty_face);
172
173	pl->ns->send_face (face, -50);
174	pl->ns->flush_fx ();
175
176	return face;
177	}
178
179	#define FINGER_UP "finger_up.x11"
180	#define FINGER_DOWN "finger_down.x11"
181
182	/**
183	* Send the look window. Don't need to do animations here
184	* This sends all the faces to the client, not just updates. This is
185	* because object ordering would otherwise be inconsistent.
186	*/
187	void
188	esrv_draw_look (player *pl)
189	{
190	object *ob = pl->ob;
191
192	if (!pl->ns->update_look)
193	{
194	LOG (llevDebug, "esrv_draw_look called when update_look was not set (player %s)\n", &ob->name);
195	return;
196	}
197
198	pl->ns->update_look = 0;
199
200	if (ob->flag [FLAG_REMOVED]
201	\|\| !ob->map
202	\|\| ob->map->in_memory != MAP_ACTIVE
203	\|\| out_of_map (ob->map, ob->x, ob->y))
204	return;
205
206	pl->ns->send_packet ("delinv 0");
207
208	packet sl;
209	sl.printf ("item%d ", pl->ns->itemcmd);
210
211	sl << uint32 (0);
212
213	int start_pos = pl->ns->look_position;
214	bool dirty = false;
215
216	mapspace &ms = ob->ms ();
217
218	// manage a ring buffer of the "last FLOORBOX_PAGESIZE" items and
219	// start from the top
220	object *items [FLOORBOX_PAGESIZE];
221	int item_idx = 0, item_cnt = 0;
222	int pos = 0;
223
224	// find our items by walking down
225	object *item = ms.top;
226
227	for (; item && item_cnt < FLOORBOX_PAGESIZE; item = item->below)
228	{
229	if (!item->client_visible ())
230	continue;
231
232	if (++pos < start_pos)
233	continue;
234
235	// record item
236	items [item_idx] = item; item_idx = item_idx < FLOORBOX_PAGESIZE ? item_idx + 1 : 0;
237	item_cnt++;
238
239	// stop at first floor
240	if (item->flag [FLAG_IS_FLOOR])
241	{
242	// we are finished, don't append "next group of items"
243	// by setting item to ms.bot it becomes zero which is checked after the while loop
244	item = ms.bot;
245	}
246	}
247
248	// see if there are more if we cared - we ignore invisible objects
249	if (item)
250	{
251	/* What we basically do is make a 'fake' object - when the user applies it,
252	* we notice the special tag the object has, and act accordingly.
253	*/
254	sl << uint32 (0x80000000 \| (start_pos + FLOORBOX_PAGESIZE))
255	<< uint32 (0)
256	<< uint32 ((uint32) - 1)
257	<< uint32 (need_face_now (pl, FINGER_DOWN))
258	<< data8 ("Apply this to see the items below")
259	<< uint16 (0)
260	<< uint8 (0)
261	<< uint32 (0);
262
263	if (pl->ns->itemcmd == 2)
264	sl << uint16 (0);
265
266	dirty = true;
267	}
268
269	// now send out all items in the ring buffer in reverse order
270	while (item_cnt)
271	{
272	--item_cnt;
273	item_idx = (item_idx ? item_idx : FLOORBOX_PAGESIZE) - 1;
274	object *item = items [item_idx];
275
276	add_object_to_socklist (*pl->ns, sl, item->head_ ());
277
278	dirty = true;
279
280	// if packet got too large, send it and begin a new one
281	if (sl.length () > MAXSOCKBUF - MAXITEMLEN)
282	{
283	pl->ns->flush_fx ();
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	{
313	pl->ns->flush_fx ();
314	pl->ns->send_packet (sl);
315	}
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->flush_fx ();
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	{
370	pl->contr->ns->flush_fx ();
371	pl->contr->ns->send_packet (sl);
372	}
373	}
374
375	/**
376	* Updates object op for player pl.
377	*
378	* flags is a list of values to update
379	* to the client (as defined in newclient.h - might as well use the
380	* same value both places.
381	*/
382	void
383	esrv_update_item (int flags, object pl, object op)
384	{
385	/* If we have a request to send the player item, skip a few checks. */
386	if (op != pl && !op->client_visible ())
387	return;
388
389	client *ns = pl->contr->ns;
390	if (!ns)
391	return;
392
393	packet sl ("upditem");
394
395	sl << uint8 (flags);
396
397	op = op->head_ ();
398
399	sl << uint32 (op->count);
400
401	if (flags & UPD_LOCATION)
402	sl << uint32 (op->env ? op->env->count : 0);
403
404	if (flags & UPD_FLAGS)
405	sl << uint32 (query_flags (op));
406
407	if (flags & UPD_WEIGHT)
408	{
409	sint32 weight = op->client_weight ();
410
411	if (op == pl)
412	ns->last_weight = weight;
413
414	sl << uint32 (weight);
415	}
416
417	if (flags & UPD_FACE)
418	{
419	ns->send_face (op->face, -50);
420	ns->flush_fx ();
421	sl << uint32 (op->face);
422	}
423
424	if (flags & UPD_NAME)
425	{
426	int len;
427	const char *item_p;
428	char item_n[127 * 2];
429
430	if (!op->custom_name)
431	{
432	len = assign (item_n, query_base_name (op, 0), 127);
433	item_p = query_base_name (op, 1);
434	}
435	else
436	{
437	len = assign (item_n, &op->custom_name, 127);
438	item_p = &op->custom_name;
439	}
440
441	len += assign (item_n + len, item_p, 127);
442
443	sl << data8 (item_n, len);
444	}
445
446	if (flags & UPD_ANIM)
447	sl << uint16 (op->animation_id);
448
449	if (flags & UPD_ANIMSPEED)
450	{
451	int anim_speed = 0;
452
453	if (op->flag [FLAG_ANIMATE])
454	{
455	if (op->anim_speed)
456	anim_speed = op->anim_speed;
457	else
458	{
459	if (op->speed < 0.001)
460	anim_speed = 255;
461	else if (op->speed >= 1.0)
462	anim_speed = 1;
463	else
464	anim_speed = 1. / op->speed;
465	}
466
467	if (anim_speed > 255)
468	anim_speed = 255;
469	}
470
471	sl << uint8 (anim_speed);
472	}
473
474	if (flags & UPD_NROF)
475	sl << uint32 (op->nrof);
476
477	pl->contr->ns->send_packet (sl);
478	}
479
480	/**
481	* Sends item's info to player.
482	*/
483	void
484	esrv_send_item (object pl, object op)
485	{
486	if (!pl->contr->ns)
487	return;
488
489	/* We only send 'visible' objects to the client, and sometimes the player */
490	if (!op->client_visible () && op->type != PLAYER)
491	return;
492
493	packet sl;
494
495	sl.printf ("item%d ", pl->contr->ns->itemcmd);
496
497	op = op->head_ ();
498
499	sl << uint32 (op->env ? op->env->count : 0);
500
501	add_object_to_socklist (*pl->contr->ns, sl, op);
502
503	pl->contr->ns->flush_fx ();
504	pl->contr->ns->send_packet (sl);
505	}
506
507	/**
508	* Tells the client to delete an item.
509	*/
510	void
511	esrv_del_item (player *pl, int tag)
512	{
513	if (!pl->ns)
514	return;
515
516	packet sl ("delitem");
517
518	sl << uint32 (tag);
519
520	pl->ns->send_packet (sl);
521	}
522
523
524	/*******************************************************************************
525	*
526	* Client has requested us to do something with an object.
527	*
528	******************************************************************************/
529
530	/**
531	* Takes a player and object count (tag) and returns the actual object
532	* pointer, or null if it can't be found.
533	*/
534	static object *
535	esrv_get_ob_from_count (object *pl, tag_t count)
536	{
537	if (pl->count == count)
538	return pl;
539
540	for (object *op = pl->inv; op; op = op->below)
541	if (op->count == count)
542	return op;
543	else if (op->type == CONTAINER && pl->container_ () == op)
544	for (object *tmp = op->inv; tmp; tmp = tmp->below)
545	if (tmp->count == count)
546	return tmp;
547
548	for (object *op = GET_MAP_OB (pl->map, pl->x, pl->y); op; op = op->above)
549	if (op->head && op->head->count == count)
550	return op;
551	else 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	#if 0
559	/* If the high bit is set, player examined a pseudo object. */
560	if (count & 0x80000000)
561	return 0;
562	#endif
563
564	return 0;
565	}
566
567	/** Client wants to examine some object. So lets do so. */
568	void
569	ExamineCmd (char buf, int len, player pl)
570	{
571	tag_t tag = atoi (buf);
572
573	/* If the high bit is set, player applied a pseudo object. */
574	if (tag & 0x80000000)
575	{
576	pl->ns->look_position = tag & 0x7fffffff;
577	pl->ns->floorbox_update ();
578	return;
579	}
580
581	object *op = esrv_get_ob_from_count (pl->ob, tag);
582
583	if (!op)
584	{
585	LOG (llevDebug, "Player '%s' tried to examine the unknown object (%ld)\n", &pl->ob->name, tag);
586	return;
587	}
588
589	examine (pl->ob, op);
590	}
591
592	/** Client wants to examine some object. So lets do so. */
593	void
594	ExCmd (char buf, int len, player pl)
595	{
596	tag_t tag = atoi (buf);
597
598	if (object *op = esrv_get_ob_from_count (pl->ob, tag))
599	{
600	std::string s = op->describe (pl->ob);
601
602	packet sl ("ex");
603	sl << ber32 (tag)
604	<< data (*pl->expand_cfpod (s.c_str ()));
605
606	pl->ns->send_packet (sl);
607	}
608	}
609
610	/** Client wants to apply some object. Lets do so. */
611	void
612	ApplyCmd (char buf, int len, player pl)
613	{
614	tag_t tag = atoi (buf);
615
616	/* If the high bit is set, player applied a pseudo object. */
617	if (tag & 0x80000000)
618	{
619	pl->ns->look_position = tag & 0x7fffffff;
620	pl->ns->floorbox_update ();
621	return;
622	}
623
624	object *op = esrv_get_ob_from_count (pl->ob, tag);
625
626	if (!op)
627	{
628	LOG (llevDebug, "Player '%s' tried to apply the unknown object (%d)\n", &pl->ob->name, tag);
629	return;
630	}
631
632	pl->ob->apply (op, AP_TOGGLE);
633	}
634
635	/** Client wants to lock some object. Lets do so. */
636	void
637	LockItem (char data, int len, player pl)
638	{
639	int flag = data[0];
640	tag_t tag = net_uint32 ((uint8 *)data + 1);
641	object *op = esrv_get_ob_from_count (pl->ob, tag);
642
643	if (!op)
644	{
645	pl->failmsg ("Could not find object to lock/unlock");
646	return;
647	}
648
649	if (!flag)
650	op->clr_flag (FLAG_INV_LOCKED);
651	else
652	op->set_flag (FLAG_INV_LOCKED);
653
654	esrv_update_item (UPD_FLAGS, pl->ob, op);
655	}
656
657	/** Client wants to mark some object. Lets do so. */
658	void
659	MarkItem (char data, int len, player pl)
660	{
661	tag_t tag = net_uint32 ((uint8 *)data);
662	object *op = esrv_get_ob_from_count (pl->ob, tag);
663
664	if (!op)
665	{
666	pl->failmsg ("Could not find object to mark");
667	return;
668	}
669
670	pl->mark = op;
671	pl->ob->statusmsg (format ("Marked item %s", query_name (op)));
672	}
673
674	/**
675	* look_at prints items on the specified square.
676	*
677	* [ removed EARTHWALL check and added check for containers inventory.
678	* Tero.Haatanen@lut.fi ]
679	*/
680	static void
681	look_at (player *pl, int dx, int dy)
682	{
683	dynbuf_text &buf = msg_dynbuf; buf.clear ();
684	object *ob = pl->ob;
685
686	if (!pl->observe->map)
687	return;
688
689	bool wiz = ob->flag [FLAG_WIZ] \|\| ob->flag [FLAG_WIZLOOK];
690
691	mapxy pos (pl->observe);
692	pos.move (dx, dy);
693
694	if (wiz)
695	{
696	if (pos.normalise ())
697	{
698	mapspace &ms = *pos;
699	ms.update ();
700
701	buf.printf (" map: %s%+d%+d (%+d%+d)\n"
702	" smell %u/%u; flags %x; light %d; block %x; slow %x; on %x; off %x; items %d, volume %lld\n\n",
703	&pos.m->path, pos.x, pos.y, dx, dy,
704	(unsigned int)ms.smell, (unsigned int)mapspace::smellcount, ms.flags (), ms.light,
705	ms.move_block, ms.move_slow, ms.move_on, ms.move_off, (int)ms.items (), (long long)ms.volume ()
706	);
707	}
708	else
709	buf << "off-map\n\n";
710	}
711
712	int darkness = pl->blocked_los (dx, dy);
713
714	if (darkness == LOS_BLOCKED)
715	buf << "You cannot see that place from your position. H<Something is in between or it is too far away.>";
716	else if (darkness == LOS_MAX)
717	buf << "That place is too dark to see anything. H<Move nearer or find better lighting.>";
718	else
719	{
720	if (pos.normalise ())
721	for (object *tmp = pos->top; tmp; tmp = tmp->below)
722	{
723	if (tmp->invisible && !ob->flag [FLAG_WIZ])
724	continue;
725
726	if (wiz)
727	buf.printf (" - %s (%d) %s\n", query_name (tmp), tmp->count, tmp->uuid.c_str ());
728	else
729	buf.printf (" - %s.\n", query_name (tmp));
730
731	object *head = tmp->head_ ();
732
733	if (head->inv)
734	if ((head->type != CONTAINER && head->type != FLESH)
735	\|\| ob->flag [FLAG_WIZ])
736	buf << head->query_inventory (ob, " ");
737
738	if (tmp->flag [FLAG_IS_FLOOR] && !wiz) /* don't continue under the floor */
739	break;
740	}
741	}
742
743	if (buf.empty ())
744	buf << "You see nothing there.";
745
746	pl->infobox (MSG_CHANNEL ("lookat"), buf);
747	}
748
749	/** Client wants to look at some object. Lets do so. */
750	void
751	LookAt (char buf, int len, player pl)
752	{
753	char *cp;
754
755	int dx = atoi (buf);
756	if (!(cp = strchr (buf, ' ')))
757	return;
758
759	int dy = atoi (cp);
760
761	look_at (pl, dx, dy);
762	}
763
764	/** Move an object to a new location */
765	void
766	esrv_move_object (object *pl, tag_t to, tag_t tag, long nrof)
767	{
768	object *op = esrv_get_ob_from_count (pl, tag);
769	if (!op)
770	{
771	LOG (llevDebug, "Player '%s' tried to move an unknown object (%ld)\n", &pl->name, tag);
772	return;
773	}
774
775	if (!to)
776	{ /* drop it to the ground */
777	if (op->map && !op->env)
778	return;
779
780	/* If it is an active container, then we should drop all objects
781	* in the container and not the container itself.
782	*/
783	if (op->inv && op->flag [FLAG_APPLIED])
784	{
785	int cnt = MAX_ITEM_PER_ACTION;
786
787	for (object *current = op->inv; current && cnt--; )
788	{
789	object *next = current->below;
790	drop_object (pl, current, 0);
791	current = next;
792	}
793
794	if (cnt <= 0)
795	op->failmsg ("Only dropped some items, can't drop that many items at once.");
796	}
797	else
798	drop_object (pl, op, nrof);
799
800	return;
801	}
802	else if (to == pl->count)
803	{ /* pick it up to the inventory */
804	/* return if player has already picked it up */
805	if (op->env == pl)
806	return;
807
808	pl->contr->count = nrof;
809	pick_up (pl, op);
810	return;
811	}
812
813	object *env = esrv_get_ob_from_count (pl, to);
814	if (!env)
815	{
816	LOG (llevDebug, "Player '%s' tried to move object to the unknown location (%d)\n", &pl->name, to);
817	return;
818	}
819
820	/* put_object_in_sack presumes that necessary sanity checking
821	* has already been done (eg, it can be picked up and fits in
822	* in a sack, so check for those things. We should also check
823	* an make sure env is in fact a container for that matter.
824	*/
825	if (env->type == CONTAINER
826	&& can_pick (pl, op)
827	&& sack_can_hold (pl, env, op, nrof))
828	put_object_in_sack (pl, env, op, nrof);
829	}
830