server/common/friend.C

/*
 * This file is part of Deliantra, the Roguelike Realtime MMORPG.
 *
 * Copyright (©) 2005,2006,2007,2008,2009,2010,2011,2012,2013,2014,2015,2016 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>
 */

#include <global.h>

/*
 * Add a new friendly object to the linked list of friendly objects.
 * No checking to see if the object is already in the linked list is done.
 */
void
add_friendly_object (object *op)
{
  op->flag [FLAG_FRIENDLY] = 1;

  objectlink *ol;

  /* Add some error checking.  This shouldn't happen, but the friendly
   * object list usually isn't very long, and remove_friendly_object
   * won't remove it either.  Plus, it is easier to put a breakpoint in
   * the debugger here and see where the problem is happening.
   */
  for (ol = first_friendly_object; ol; ol = ol->next)
    {
      if (ol->ob == op)
        {
          LOG (llevError | logBacktrace, "add_friendly_object: Trying to add object already on list (%s)\n", &op->name);
          return;
        }
    }

  ol = first_friendly_object;
  first_friendly_object = get_objectlink ();
  first_friendly_object->ob = op;
  first_friendly_object->next = ol;
}

/*
 * Removes the specified object from the linked list of friendly objects.
 */
void
remove_friendly_object (object *op)
{
  objectlink *obj;

  op->clr_flag (FLAG_FRIENDLY);

  if (op->type == GOLEM
      && op->owner
      && op->owner->contr
      && op->owner->contr->golem == op)
    op->owner->contr->golem = 0;

  if (!first_friendly_object)
    {
      LOG (llevError, "remove_friendly_object called with empty friendly list, remove ob=%s\n", &op->name);
      return;
    }

  /* if the first object happens to be the one, processing is pretty
   * easy.
   */
  if (first_friendly_object->ob == op)
    {
      obj = first_friendly_object;
      first_friendly_object = obj->next;
      delete obj;
    }
  else
    {
      objectlink *prev = first_friendly_object;

      for (obj = first_friendly_object->next; obj; obj = obj->next)
        {
          if (obj->ob == op)
            break;

          prev = obj;
        }

      if (obj)
        {
          prev->next = obj->next;
          delete obj;
        }
    }
}

/* New function, MSW 2000-1-14
 * It traverses the friendly list removing objects that should not be here
 * (ie, do not have friendly flag set, freed, etc)
 */
void
clean_friendly_list ()
{
  objectlink *obj, *prev = NULL, *next;
  int count = 0;

  for (obj = first_friendly_object; obj; obj = next)
    {
      next = obj->next;
      if (obj->ob->flag [FLAG_FREED] || !obj->ob->flag [FLAG_FRIENDLY])
        {
          if (prev)
            prev->next = obj->next;
          else
            first_friendly_object = obj->next;

          count++;
          delete obj;
        }
      else
        /* If we removed the object, then prev is still valid.  */
        prev = obj;
    }

  if (count)
    LOG (llevDebug, "clean_friendly_list: Removed %d bogus links\n", count);
}

Revision:	1.31
Committed:	Sun Jan 29 02:47:04 2017 UTC (7 years, 3 months ago) by root
Content type:	text/plain
Branch:	MAIN
Changes since 1.30:	+1 -1 lines
Log Message:	remove eol whitespace
#	User	Rev	Content
1	elmex	1.1	/*
2	root	1.17	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
3	root	1.29	*
4	root	1.30	* Copyright (©) 2005,2006,2007,2008,2009,2010,2011,2012,2013,2014,2015,2016 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5	root	1.24	* Copyright (©) 2002 Mark Wedel & Crossfire Development Team
6			* Copyright (©) 1992 Frank Tore Johansen
7	root	1.29	*
8	root	1.20	* 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	root	1.29	*
13	root	1.16	* 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	root	1.29	*
18	root	1.20	* 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	root	1.29	*
22	root	1.17	* The authors can be reached via e-mail to <support@deliantra.net>
23	pippijn	1.10	*/
24	elmex	1.1
25			#include <global.h>
26
27			/*
28			* Add a new friendly object to the linked list of friendly objects.
29			* No checking to see if the object is already in the linked list is done.
30			*/
31	root	1.5	void
32			add_friendly_object (object *op)
33			{
34	root	1.9	op->flag [FLAG_FRIENDLY] = 1;
35
36	root	1.5	objectlink *ol;
37	elmex	1.1
38	root	1.5	/* Add some error checking. This shouldn't happen, but the friendly
39			* object list usually isn't very long, and remove_friendly_object
40			* won't remove it either. Plus, it is easier to put a breakpoint in
41	root	1.31	* the debugger here and see where the problem is happening.
42	root	1.5	*/
43	root	1.9	for (ol = first_friendly_object; ol; ol = ol->next)
44	root	1.5	{
45			if (ol->ob == op)
46			{
47	root	1.15	LOG (llevError \| logBacktrace, "add_friendly_object: Trying to add object already on list (%s)\n", &op->name);
48	root	1.5	return;
49	root	1.2	}
50	elmex	1.1	}
51
52	root	1.5	ol = first_friendly_object;
53			first_friendly_object = get_objectlink ();
54			first_friendly_object->ob = op;
55			first_friendly_object->next = ol;
56	elmex	1.1	}
57
58			/*
59			* Removes the specified object from the linked list of friendly objects.
60			*/
61	root	1.5	void
62			remove_friendly_object (object *op)
63			{
64			objectlink *obj;
65	elmex	1.1
66	root	1.26	op->clr_flag (FLAG_FRIENDLY);
67	elmex	1.1
68	root	1.11	if (op->type == GOLEM
69			&& op->owner
70			&& op->owner->contr
71	root	1.12	&& op->owner->contr->golem == op)
72			op->owner->contr->golem = 0;
73	root	1.11
74	root	1.5	if (!first_friendly_object)
75			{
76			LOG (llevError, "remove_friendly_object called with empty friendly list, remove ob=%s\n", &op->name);
77			return;
78			}
79	root	1.9
80	root	1.5	/* if the first object happens to be the one, processing is pretty
81			* easy.
82			*/
83			if (first_friendly_object->ob == op)
84			{
85			obj = first_friendly_object;
86			first_friendly_object = obj->next;
87	root	1.7	delete obj;
88	elmex	1.1	}
89	root	1.5	else
90			{
91			objectlink *prev = first_friendly_object;
92
93	root	1.9	for (obj = first_friendly_object->next; obj; obj = obj->next)
94	root	1.5	{
95			if (obj->ob == op)
96			break;
97	root	1.11
98	root	1.5	prev = obj;
99	root	1.2	}
100	root	1.7
101	root	1.5	if (obj)
102			{
103			prev->next = obj->next;
104	root	1.7	delete obj;
105	root	1.2	}
106	elmex	1.1	}
107			}
108
109			/* New function, MSW 2000-1-14
110			* It traverses the friendly list removing objects that should not be here
111			* (ie, do not have friendly flag set, freed, etc)
112			*/
113	root	1.5	void
114	root	1.23	clean_friendly_list ()
115	root	1.5	{
116			objectlink obj, prev = NULL, *next;
117			int count = 0;
118
119	root	1.7	for (obj = first_friendly_object; obj; obj = next)
120	root	1.5	{
121			next = obj->next;
122	root	1.26	if (obj->ob->flag [FLAG_FREED] \|\| !obj->ob->flag [FLAG_FRIENDLY])
123	root	1.5	{
124			if (prev)
125	root	1.7	prev->next = obj->next;
126	root	1.5	else
127	root	1.7	first_friendly_object = obj->next;
128
129	root	1.5	count++;
130	root	1.7	delete obj;
131	root	1.2	}
132	root	1.5	else
133	root	1.7	/* If we removed the object, then prev is still valid. */
134	root	1.5	prev = obj;
135	elmex	1.1	}
136	root	1.7
137	root	1.5	if (count)
138			LOG (llevDebug, "clean_friendly_list: Removed %d bogus links\n", count);
139	elmex	1.1	}
140