server/common/region.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 (©) 2001-2003 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>
#include <unistd.h>

regionvec regions;

region *
region::default_region ()
{
  for_all_regions (rgn)
    if (rgn->fallback)
      return rgn;

  return regions [0];
}

/* 
 * Pass a char array, returns a pointer to the region of the same name.
 * if it can't find a region of the same name it returns the first region
 * with the 'fallback' property set.
 * if it can't find a matching name /or/ a fallback region it logs an info message 
 * message and returns NULL
 * used by the map parsing code. 
 */
region *
region::find (shstr_cmp name)
{
  for_all_regions (rgn)
    if (rgn->name == name)
      return rgn;

  LOG (llevError, "region called %s requested, but not found, using fallback.\n", &name);

  return default_region ();
}

void
region::do_destroy ()
{
  regions.erase (this);

  attachable::do_destroy ();

  refcnt_dec ();
}

//+GPL

/* 
 * returns 1 if the player is in the region reg, or a child region thereof
 * otherwise returns 0
 * if passed a NULL region returns -1
 */
static int
region_is_child_of_region (const region * child, const region * r)
{
  if (!r)
    return -1;

  if (!child)
    return 0;

  if (child->name == r->name)
    return 1;

  if (child->parent)
    return region_is_child_of_region (child->parent, r);

  return 0;
}

/** Returns an object which is an exit through which the player represented by op should be
 *  sent in order to be imprisoned. If there is no suitable place to which an exit can be 
 *  constructed, then NULL will be returned. The caller is responsible for freeing the object
 *  created by this function.
 */
object *
get_jail_exit (object *op)
{
  if (op->type != PLAYER)
    {
      LOG (llevError, "region.c: get_jail_exit called against non-player object.\n");
      return NULL;
    }

  region *reg = op->region ();
  while (reg)
    {
      if (reg->jailmap)
        {
          object *exit = object::create ();
          EXIT_PATH (exit) = reg->jailmap;
          /* damned exits reset savebed and remove teleports, so the prisoner can't escape */
          exit->set_flag (FLAG_DAMNED);
          EXIT_X (exit) = reg->jailx;
          EXIT_Y (exit) = reg->jaily;
          return exit;
        }
      else
        reg = reg->parent;
    }

  LOG (llevError, "No suitable jailmap for region %s was found.\n", &reg->name);

  return 0;
}

//-GPL

region *
region::read (object_thawer &f)
{
  assert (f.kw == KW_region);

  region *rgn = new region;
  rgn->refcnt_inc ();

  f.get (rgn->name);
  f.next ();

  for (;;)
    {
      switch (f.kw)
        {
          case KW_parent:
            rgn->parent = region::find (f.get_str ());
            break;

          case KW_msg:        f.get_ml (KW_endmsg, rgn->msg); break;
          case KW_longname:   f.get (rgn->longname); break;
          case KW_jail_map:   f.get (rgn->jailmap);  break;
          case KW_jail_x:     f.get (rgn->jailx);    break;
          case KW_jail_y:     f.get (rgn->jaily);    break;
          case KW_portal_map: f.get (rgn->portalmap);break;
          case KW_portal_x:   f.get (rgn->portalx);  break;
          case KW_portal_y:   f.get (rgn->portaly);  break;
          case KW_fallback:   f.get (rgn->fallback); break;
          case KW_chance:     f.get (rgn->treasure_density); break;

          case KW_randomitems:
            rgn->treasure = treasurelist::get (f.get_str ());
            break;

          case KW_end:
            f.next ();

            // cannot use find as that will request the default region
            for_all_regions (old)
              if (old->name == rgn->name)
                {
                  old->destroy ();
                  break;
                }

            // just append
            regions.push_back (rgn);
            return rgn;

          case KW_ERROR:
            rgn->set_key_text (f.kw_str, f.value);
            //fprintf (stderr, "region addkv(%s,%s)\n", f.kw_str, f.value);//D
            break;

          default:
            if (!f.parse_error ("region", rgn->name))
              {
                rgn->destroy ();
                return 0;
              }
            break;
        }

      f.next ();
    }
}

Revision:	1.49
Committed:	Sun Apr 11 00:34:05 2010 UTC (14 years, 1 month ago) by root
Content type:	text/plain
Branch:	MAIN
Changes since 1.48:	+1 -1 lines
Log Message:	get rid of QUERY_FLAG/SET_FLAG/CLEAR_FLAG macros that I always hated
#	User	Rev	Content
1	elmex	1.1	/*
2	root	1.37	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
3	pippijn	1.16	*
4	root	1.48	* Copyright (©) 2005,2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5	root	1.47	* Copyright (©) 2001-2003 Mark Wedel & Crossfire Development Team
6			* Copyright (©) 1992 Frank Tore Johansen
7	pippijn	1.16	*
8	root	1.43	* 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	pippijn	1.16	*
13	root	1.33	* 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	1.32	*
18	root	1.43	* 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	1.32	*
22	root	1.37	* The authors can be reached via e-mail to <support@deliantra.net>
23	pippijn	1.16	*/
24	elmex	1.1
25			#include <global.h>
26	pippijn	1.8	#include <unistd.h>
27	root	1.4
28	root	1.21	regionvec regions;
29
30	root	1.18	region *
31			region::default_region ()
32			{
33	root	1.21	for_all_regions (rgn)
34			if (rgn->fallback)
35			return rgn;
36	root	1.18
37	root	1.21	return regions [0];
38	root	1.18	}
39
40	elmex	1.1	/*
41			* Pass a char array, returns a pointer to the region of the same name.
42			* if it can't find a region of the same name it returns the first region
43			* with the 'fallback' property set.
44			* if it can't find a matching name /or/ a fallback region it logs an info message
45			* message and returns NULL
46			* used by the map parsing code.
47			*/
48	root	1.4	region *
49	root	1.41	region::find (shstr_cmp name)
50	root	1.4	{
51	root	1.21	for_all_regions (rgn)
52	root	1.41	if (rgn->name == name)
53	root	1.21	return rgn;
54	root	1.4
55	root	1.41	LOG (llevError, "region called %s requested, but not found, using fallback.\n", &name);
56	root	1.4
57	root	1.18	return default_region ();
58	elmex	1.1	}
59
60	root	1.35	void
61			region::do_destroy ()
62			{
63			regions.erase (this);
64
65			attachable::do_destroy ();
66
67			refcnt_dec ();
68			}
69
70	root	1.44	//+GPL
71
72	elmex	1.1	/*
73			* returns 1 if the player is in the region reg, or a child region thereof
74			* otherwise returns 0
75			* if passed a NULL region returns -1
76			*/
77	root	1.19	static int
78	root	1.4	region_is_child_of_region (const region * child, const region * r)
79			{
80	root	1.40	if (!r)
81	root	1.4	return -1;
82	root	1.19
83	root	1.40	if (!child)
84	root	1.4	return 0;
85	root	1.19
86	root	1.40	if (child->name == r->name)
87	root	1.4	return 1;
88	root	1.19
89	root	1.40	if (child->parent)
90	root	1.4	return region_is_child_of_region (child->parent, r);
91	root	1.40
92			return 0;
93	elmex	1.1	}
94
95			/** Returns an object which is an exit through which the player represented by op should be
96			* sent in order to be imprisoned. If there is no suitable place to which an exit can be
97			* constructed, then NULL will be returned. The caller is responsible for freeing the object
98			* created by this function.
99			*/
100	root	1.4	object *
101			get_jail_exit (object *op)
102			{
103			if (op->type != PLAYER)
104			{
105			LOG (llevError, "region.c: get_jail_exit called against non-player object.\n");
106			return NULL;
107			}
108	root	1.19
109	root	1.38	region *reg = op->region ();
110	root	1.19	while (reg)
111	root	1.4	{
112			if (reg->jailmap)
113			{
114	root	1.38	object *exit = object::create ();
115	root	1.4	EXIT_PATH (exit) = reg->jailmap;
116			/* damned exits reset savebed and remove teleports, so the prisoner can't escape */
117	root	1.49	exit->set_flag (FLAG_DAMNED);
118	root	1.4	EXIT_X (exit) = reg->jailx;
119			EXIT_Y (exit) = reg->jaily;
120			return exit;
121	root	1.2	}
122	root	1.4	else
123			reg = reg->parent;
124	elmex	1.1	}
125	root	1.19
126	root	1.21	LOG (llevError, "No suitable jailmap for region %s was found.\n", &reg->name);
127
128			return 0;
129	elmex	1.1	}
130
131	root	1.44	//-GPL
132
133	root	1.25	region *
134	root	1.26	region::read (object_thawer &f)
135	root	1.19	{
136	root	1.26	assert (f.kw == KW_region);
137
138	root	1.21	region *rgn = new region;
139	root	1.35	rgn->refcnt_inc ();
140
141	root	1.25	f.get (rgn->name);
142	root	1.26	f.next ();
143	root	1.19
144	root	1.20	for (;;)
145			{
146	root	1.25	switch (f.kw)
147	root	1.20	{
148			case KW_parent:
149	root	1.25	rgn->parent = region::find (f.get_str ());
150	root	1.20	break;
151
152	root	1.31	case KW_msg: f.get_ml (KW_endmsg, rgn->msg); break;
153			case KW_longname: f.get (rgn->longname); break;
154			case KW_jail_map: f.get (rgn->jailmap); break;
155			case KW_jail_x: f.get (rgn->jailx); break;
156			case KW_jail_y: f.get (rgn->jaily); break;
157			case KW_portal_map: f.get (rgn->portalmap);break;
158			case KW_portal_x: f.get (rgn->portalx); break;
159			case KW_portal_y: f.get (rgn->portaly); break;
160			case KW_fallback: f.get (rgn->fallback); break;
161			case KW_chance: f.get (rgn->treasure_density); break;
162	root	1.30
163			case KW_randomitems:
164			rgn->treasure = treasurelist::get (f.get_str ());
165			break;
166	root	1.20
167	root	1.21	case KW_end:
168	root	1.29	f.next ();
169
170	root	1.35	// cannot use find as that will request the default region
171	root	1.25	for_all_regions (old)
172			if (old->name == rgn->name)
173			{
174	root	1.35	old->destroy ();
175			break;
176	root	1.25	}
177
178			// just append
179			regions.push_back (rgn);
180			return rgn;
181	root	1.21
182	root	1.34	case KW_ERROR:
183	root	1.36	rgn->set_key_text (f.kw_str, f.value);
184	root	1.34	//fprintf (stderr, "region addkv(%s,%s)\n", f.kw_str, f.value);//D
185			break;
186
187	root	1.21	default:
188	root	1.25	if (!f.parse_error ("region", rgn->name))
189			{
190	root	1.35	rgn->destroy ();
191	root	1.25	return 0;
192			}
193	root	1.21	break;
194	root	1.20	}
195	root	1.25
196	root	1.26	f.next ();
197	root	1.20	}
198			}
199