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Comparing deliantra/server/common/object.C (file contents):
Revision 1.93 by root, Tue Dec 26 20:04:09 2006 UTC vs.
Revision 1.233 by root, Tue May 6 18:47:32 2008 UTC

1/* 1/*
2 CrossFire, A Multiplayer game for X-windows 2 * This file is part of Deliantra, the Roguelike Realtime MMORPG.
3 3 *
4 * Copyright (©) 2005,2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
4 Copyright (C) 2001 Mark Wedel & Crossfire Development Team 5 * Copyright (©) 2001,2007 Mark Wedel & Crossfire Development Team
5 Copyright (C) 1992 Frank Tore Johansen 6 * Copyright (©) 1992,2007 Frank Tore Johansen
6 7 *
7 This program is free software; you can redistribute it and/or modify 8 * Deliantra is free software: you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by 9 * it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or 10 * the Free Software Foundation, either version 3 of the License, or
10 (at your option) any later version. 11 * (at your option) any later version.
11 12 *
12 This program is distributed in the hope that it will be useful, 13 * This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details. 16 * GNU General Public License for more details.
16 17 *
17 You should have received a copy of the GNU General Public License 18 * You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software 19 * along with this program. If not, see <http://www.gnu.org/licenses/>.
19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 20 *
20 21 * The authors can be reached via e-mail to <support@deliantra.net>
21 The authors can be reached via e-mail at <crossfire@schmorp.de>
22*/ 22 */
23 23
24/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.
25 sub/add_weight will transcend the environment updating the carrying
26 variable. */
27#include <global.h> 24#include <global.h>
28#include <stdio.h> 25#include <stdio.h>
29#include <sys/types.h> 26#include <sys/types.h>
30#include <sys/uio.h> 27#include <sys/uio.h>
31#include <object.h> 28#include <object.h>
32#include <funcpoint.h> 29#include <sproto.h>
33#include <loader.h> 30#include <loader.h>
34 31
35#include <bitset> 32#include <bitset>
36 33
37int nrofallocobjects = 0; 34UUID UUID::cur;
38static UUID uuid; 35static uint64_t seq_next_save;
39const uint64 UUID_SKIP = 1<<19; 36static const uint64 UUID_GAP = 1<<19;
40 37
41object *active_objects; /* List of active objects that need to be processed */ 38objectvec objects;
39activevec actives;
42 40
43short freearr_x[SIZEOFFREE] = { 0, 0, 1, 1, 1, 0, -1, -1, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2, -2, -2, -2, -1, 41short freearr_x[SIZEOFFREE] = {
42 0,
43 0, 1, 1, 1, 0, -1, -1, -1,
44 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2, -2, -2, -2, -1,
44 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3, -3, -3, -3, -3, -2, -1 45 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3, -3, -3, -3, -3, -2, -1
45}; 46};
46short freearr_y[SIZEOFFREE] = { 0, -1, -1, 0, 1, 1, 1, 0, -1, -2, -2, -2, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2, 47short freearr_y[SIZEOFFREE] = {
48 0,
49 -1, -1, 0, 1, 1, 1, 0, -1,
50 -2, -2, -2, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2,
47 -3, -3, -3, -3, -2, -1, 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3 51 -3, -3, -3, -3, -2, -1, 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3
48}; 52};
49int maxfree[SIZEOFFREE] = { 0, 9, 10, 13, 14, 17, 18, 21, 22, 25, 26, 27, 30, 31, 32, 33, 36, 37, 39, 39, 42, 43, 44, 45, 53int maxfree[SIZEOFFREE] = {
54 0,
55 9, 10, 13, 14, 17, 18, 21, 22,
56 25, 26, 27, 30, 31, 32, 33, 36, 37, 39, 39, 42, 43, 44, 45, 48,
50 48, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49 57 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49
51}; 58};
52int freedir[SIZEOFFREE] = { 59int freedir[SIZEOFFREE] = {
53 0, 1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 2, 2, 3, 4, 4, 4, 5, 6, 6, 6, 7, 8, 8, 8, 60 0,
61 1, 2, 3, 4, 5, 6, 7, 8,
62 1, 2, 2, 2, 3, 4, 4, 4, 5, 6, 6, 6, 7, 8, 8, 8,
54 1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 7, 8, 8, 8, 8, 8 63 1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 7, 8, 8, 8, 8, 8
55}; 64};
56 65
57static void 66static void
58write_uuid (void) 67write_uuid (uval64 skip, bool sync)
59{ 68{
60 char filename1[MAX_BUF], filename2[MAX_BUF]; 69 CALL_BEGIN (2);
61 70 CALL_ARG_SV (newSVval64 (skip));
62 sprintf (filename1, "%s/uuid", settings.localdir); 71 CALL_ARG_SV (boolSV (sync));
63 sprintf (filename2, "%s/uuid~", settings.localdir); 72 CALL_CALL ("cf::write_uuid", G_DISCARD);
64 73 CALL_END;
65 FILE *fp;
66
67 if (!(fp = fopen (filename2, "w")))
68 {
69 LOG (llevError, "ERROR: cannot open %s for writing, unable to write UUID!\n", filename2);
70 return;
71 }
72
73 fprintf (fp, "<1,%llx>\n", (unsigned long long)uuid.seq + UUID_SKIP * 2);
74 fclose (fp);
75 rename (filename2, filename1);
76} 74}
77 75
78static void 76static void
79read_uuid (void) 77read_uuid (void)
80{ 78{
81 char filename[MAX_BUF]; 79 char filename[MAX_BUF];
82 80
83 sprintf (filename, "%s/uuid", settings.localdir); 81 sprintf (filename, "%s/uuid", settings.localdir);
82
83 seq_next_save = 0;
84 84
85 FILE *fp; 85 FILE *fp;
86 86
87 if (!(fp = fopen (filename, "r"))) 87 if (!(fp = fopen (filename, "r")))
88 { 88 {
89 if (errno == ENOENT) 89 if (errno == ENOENT)
90 { 90 {
91 LOG (llevInfo, "RESET uid to 1\n"); 91 LOG (llevInfo, "RESET uid to 1\n");
92 uuid.seq = 0; 92 UUID::cur.seq = 0;
93 write_uuid (); 93 write_uuid (UUID_GAP, true);
94 return; 94 return;
95 } 95 }
96 96
97 LOG (llevError, "FATAL: cannot open %s for reading!\n", filename); 97 LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);
98 _exit (1); 98 _exit (1);
99 } 99 }
100 100
101 int version; 101 UUID::BUF buf;
102 unsigned long long uid; 102 buf[0] = 0;
103 if (2 != fscanf (fp, "<%d,%llx>\n", &version, &uid) || version != 1) 103 fgets (buf, sizeof (buf), fp);
104
105 if (!UUID::cur.parse (buf))
104 { 106 {
105 LOG (llevError, "FATAL: error reading uid from %s!\n", filename); 107 LOG (llevError, "FATAL: error reading uid from %s (%s)!\n", filename, buf);
106 _exit (1); 108 _exit (1);
107 } 109 }
108 110
109 uuid.seq = uid; 111 LOG (llevDebug, "read UUID: %s\n", UUID::cur.c_str ());
110 write_uuid (); 112
111 LOG (llevDebug, "read UID: %" PRId64 "\n", uid); 113 write_uuid (UUID_GAP, true);
112 fclose (fp); 114 fclose (fp);
113} 115}
114 116
115UUID 117UUID
116gen_uuid () 118UUID::gen ()
117{ 119{
118 UUID uid; 120 UUID uid;
119 121
120 uid.seq = ++uuid.seq; 122 uid.seq = ++cur.seq;
121 123
122 if (!(uuid.seq & (UUID_SKIP - 1))) 124 if (expect_false (cur.seq >= seq_next_save))
123 write_uuid (); 125 {
126 seq_next_save = UUID::cur.seq + (UUID_GAP >> 1);
127 write_uuid (UUID_GAP, false);
128 }
129
124 130
125 return uid; 131 return uid;
126} 132}
127 133
128void 134void
129init_uuid () 135UUID::init ()
130{ 136{
131 read_uuid (); 137 read_uuid ();
132} 138}
133 139
134/* Returns TRUE if every key_values in wants has a partner with the same value in has. */ 140/* Returns TRUE if every key_values in wants has a partner with the same value in has. */
135static int 141static bool
136compare_ob_value_lists_one (const object *wants, const object *has) 142compare_ob_value_lists_one (const object *wants, const object *has)
137{ 143{
138 key_value *wants_field;
139
140 /* n-squared behaviour (see get_ob_key_link()), but I'm hoping both 144 /* n-squared behaviour (see kv_get), but I'm hoping both
141 * objects with lists are rare, and lists stay short. If not, use a 145 * objects with lists are rare, and lists stay short. If not, use a
142 * different structure or at least keep the lists sorted... 146 * different structure or at least keep the lists sorted...
143 */ 147 */
144 148
145 /* For each field in wants, */ 149 /* For each field in wants, */
146 for (wants_field = wants->key_values; wants_field; wants_field = wants_field->next) 150 for (key_value *kv = wants->key_values; kv; kv = kv->next)
147 { 151 if (has->kv_get (kv->key) != kv->value)
148 key_value *has_field; 152 return false;
149
150 /* Look for a field in has with the same key. */
151 has_field = get_ob_key_link (has, wants_field->key);
152
153 if (has_field == NULL)
154 {
155 /* No field with that name. */
156 return FALSE;
157 }
158
159 /* Found the matching field. */
160 if (has_field->value != wants_field->value)
161 {
162 /* Values don't match, so this half of the comparison is false. */
163 return FALSE;
164 }
165
166 /* If we get here, we found a match. Now for the next field in wants. */
167 }
168 153
169 /* If we get here, every field in wants has a matching field in has. */ 154 /* If we get here, every field in wants has a matching field in has. */
170 return TRUE; 155 return true;
171} 156}
172 157
173/* Returns TRUE if ob1 has the same key_values as ob2. */ 158/* Returns TRUE if ob1 has the same key_values as ob2. */
174static int 159static bool
175compare_ob_value_lists (const object *ob1, const object *ob2) 160compare_ob_value_lists (const object *ob1, const object *ob2)
176{ 161{
177 /* However, there may be fields in has which aren't partnered in wants, 162 /* However, there may be fields in has which aren't partnered in wants,
178 * so we need to run the comparison *twice*. :( 163 * so we need to run the comparison *twice*. :(
179 */ 164 */
180 return compare_ob_value_lists_one (ob1, ob2) && compare_ob_value_lists_one (ob2, ob1); 165 return compare_ob_value_lists_one (ob1, ob2)
166 && compare_ob_value_lists_one (ob2, ob1);
181} 167}
182 168
183/* Function examines the 2 objects given to it, and returns true if 169/* Function examines the 2 objects given to it, and returns true if
184 * they can be merged together. 170 * they can be merged together.
185 * 171 *
190 * Check nrof variable *before* calling can_merge() 176 * Check nrof variable *before* calling can_merge()
191 * 177 *
192 * Improvements made with merge: Better checking on potion, and also 178 * Improvements made with merge: Better checking on potion, and also
193 * check weight 179 * check weight
194 */ 180 */
195
196bool object::can_merge_slow (object *ob1, object *ob2) 181bool object::can_merge_slow (object *ob1, object *ob2)
197{ 182{
198 /* A couple quicksanity checks */ 183 /* A couple quicksanity checks */
199 if (ob1 == ob2 184 if (ob1 == ob2
200 || ob1->type != ob2->type 185 || ob1->type != ob2->type
201 || ob1->speed != ob2->speed 186 || ob1->speed != ob2->speed
202 || ob1->value != ob2->value 187 || ob1->value != ob2->value
203 || ob1->name != ob2->name) 188 || ob1->name != ob2->name)
204 return 0; 189 return 0;
205 190
206 //TODO: this ain't working well, use nicer and correct overflow check 191 /* Do not merge objects if nrof would overflow. First part checks
207 /* Do not merge objects if nrof would overflow. We use 1UL<<31 since that 192 * for unsigned overflow (2c), second part checks whether the result
208 * value could not be stored in a sint32 (which unfortunately sometimes is 193 * would fit into a 32 bit signed int, which is often used to hold
209 * used to store nrof). 194 * nrof values.
210 */ 195 */
211 if (ob1->nrof + ob2->nrof >= 1UL << 31) 196 if (~ob1->nrof < ob2->nrof || ob1->nrof + ob2->nrof > (1UL << 31))
212 return 0; 197 return 0;
213 198
214 /* If the objects have been identified, set the BEEN_APPLIED flag. 199 /* If the objects have been identified, set the BEEN_APPLIED flag.
215 * This is to the comparison of the flags below will be OK. We 200 * This is to the comparison of the flags below will be OK. We
216 * just can't ignore the been applied or identified flags, as they 201 * just can't ignore the been applied or identified flags, as they
217 * are not equal - just if it has been identified, the been_applied 202 * are not equal - just if it has been identified, the been_applied
218 * flags lose any meaning. 203 * flags lose any meaning.
219 */ 204 */
220 if (QUERY_FLAG (ob1, FLAG_IDENTIFIED)) 205 if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))
221 SET_FLAG (ob1, FLAG_BEEN_APPLIED); 206 SET_FLAG (ob1, FLAG_BEEN_APPLIED);
222 207
223 if (QUERY_FLAG (ob2, FLAG_IDENTIFIED)) 208 if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
224 SET_FLAG (ob2, FLAG_BEEN_APPLIED); 209 SET_FLAG (ob2, FLAG_BEEN_APPLIED);
225 210
226 if ((ob1->flag ^ ob2->flag).reset (FLAG_INV_LOCKED).reset (FLAG_CLIENT_SENT).any () 211 if (ob1->arch->name != ob2->arch->name
227 || ob1->arch != ob2->arch
228 || ob1->name != ob2->name 212 || ob1->name != ob2->name
229 || ob1->title != ob2->title 213 || ob1->title != ob2->title
230 || ob1->msg != ob2->msg 214 || ob1->msg != ob2->msg
231 || ob1->weight != ob2->weight 215 || ob1->weight != ob2->weight
232 || memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
233 || memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats) )
234 || ob1->attacktype != ob2->attacktype 216 || ob1->attacktype != ob2->attacktype
235 || ob1->magic != ob2->magic 217 || ob1->magic != ob2->magic
236 || ob1->slaying != ob2->slaying 218 || ob1->slaying != ob2->slaying
237 || ob1->skill != ob2->skill 219 || ob1->skill != ob2->skill
238 || ob1->value != ob2->value 220 || ob1->value != ob2->value
245 || ob1->move_block != ob2->move_block 227 || ob1->move_block != ob2->move_block
246 || ob1->move_allow != ob2->move_allow 228 || ob1->move_allow != ob2->move_allow
247 || ob1->move_on != ob2->move_on 229 || ob1->move_on != ob2->move_on
248 || ob1->move_off != ob2->move_off 230 || ob1->move_off != ob2->move_off
249 || ob1->move_slow != ob2->move_slow 231 || ob1->move_slow != ob2->move_slow
250 || ob1->move_slow_penalty != ob2->move_slow_penalty) 232 || ob1->move_slow_penalty != ob2->move_slow_penalty
233 || memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
234 || memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats)))
251 return 0; 235 return 0;
252 236
237 if ((ob1->flag ^ ob2->flag)
238 .reset (FLAG_INV_LOCKED)
239 .reset (FLAG_CLIENT_SENT)
240 .reset (FLAG_REMOVED)
241 .any ())
242 return 0;
243
253 /* This is really a spellbook check - really, we should 244 /* This is really a spellbook check - we should in general
254 * check all objects in the inventory. 245 * not merge objects with real inventories, as splitting them
246 * is hard.
255 */ 247 */
256 if (ob1->inv || ob2->inv) 248 if (ob1->inv || ob2->inv)
257 { 249 {
258 /* if one object has inventory but the other doesn't, not equiv */ 250 if (!(ob1->inv && ob2->inv))
259 if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv)) 251 return 0; /* inventories differ in length */
260 return 0;
261 252
262 /* Now check to see if the two inventory objects could merge */ 253 if (ob1->inv->below || ob2->inv->below)
254 return 0; /* more than one object in inv */
255
263 if (!object::can_merge (ob1->inv, ob2->inv)) 256 if (!object::can_merge (ob1->inv, ob2->inv))
264 return 0; 257 return 0; /* inventory objects differ */
265 258
266 /* inventory ok - still need to check rest of this object to see 259 /* inventory ok - still need to check rest of this object to see
267 * if it is valid. 260 * if it is valid.
268 */ 261 */
269 } 262 }
277 270
278 /* Note sure why the following is the case - either the object has to 271 /* Note sure why the following is the case - either the object has to
279 * be animated or have a very low speed. Is this an attempted monster 272 * be animated or have a very low speed. Is this an attempted monster
280 * check? 273 * check?
281 */ 274 */
282 if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && FABS ((ob1)->speed) > MIN_ACTIVE_SPEED) 275 if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && ob1->has_active_speed ())
283 return 0; 276 return 0;
284 277
285 switch (ob1->type) 278 switch (ob1->type)
286 { 279 {
287 case SCROLL: 280 case SCROLL:
288 if (ob1->level != ob2->level) 281 if (ob1->level != ob2->level)
289 return 0; 282 return 0;
290 break; 283 break;
291 } 284 }
292 285
293 if (ob1->key_values != NULL || ob2->key_values != NULL) 286 if (ob1->key_values || ob2->key_values)
294 { 287 {
295 /* At least one of these has key_values. */ 288 /* At least one of these has key_values. */
296 if ((ob1->key_values == NULL) != (ob2->key_values == NULL)) 289 if ((!ob1->key_values) != (!ob2->key_values))
297 /* One has fields, but the other one doesn't. */ 290 return 0; /* One has fields, but the other one doesn't. */
291
292 if (!compare_ob_value_lists (ob1, ob2))
298 return 0; 293 return 0;
299 else if (!compare_ob_value_lists (ob1, ob2))
300 return 0;
301 } 294 }
302 295
303 //TODO: generate an event or call into perl for additional checks
304 if (ob1->self || ob2->self) 296 if (ob1->self || ob2->self)
305 { 297 {
306 ob1->optimise (); 298 ob1->optimise ();
307 ob2->optimise (); 299 ob2->optimise ();
308 300
309 if (ob1->self || ob2->self) 301 if (ob1->self || ob2->self)
302 {
303 int k1 = ob1->self ? HvTOTALKEYS (ob1->self) : 0;
304 int k2 = ob2->self ? HvTOTALKEYS (ob2->self) : 0;
305
306 if (k1 != k2)
310 return 0; 307 return 0;
308
309 if (k1 == 0)
310 return 1;
311
312 if (!cfperl_can_merge (ob1, ob2))
313 return 0;
314 }
311 } 315 }
312 316
313 /* Everything passes, must be OK. */ 317 /* Everything passes, must be OK. */
314 return 1; 318 return 1;
315} 319}
316 320
321// find player who can see this object
322object *
323object::visible_to () const
324{
325 if (client_visible () && !flag [FLAG_REMOVED])
326 {
327 // see if we are in a container of sorts
328 if (env)
329 {
330 // the player inventory itself is always visible
331 if (env->type == PLAYER)
332 return env;
333
334 // else a player could have our env open
335 object *envest = env->outer_env ();
336
337 // the player itself is always on a map, so we will find him here
338 // even if our inv is in a player.
339 if (envest->is_on_map ())
340 if (object *pl = envest->ms ().player ())
341 if (pl->container == env)
342 return pl;
343 }
344 else
345 {
346 // maybe there is a player standing on the same mapspace
347 // this will catch the case where "this" is a player
348 if (object *pl = ms ().player ())
349 if (!pl->container || this == pl->container)
350 return pl;
351 }
352 }
353
354 return 0;
355}
356
357// adjust weight per container type ("of holding")
358static sint32
359weight_adjust_for (object *op, sint32 weight)
360{
361 return op->type == CONTAINER
362 ? lerp (weight, 0, 100, 0, 100 - op->stats.Str)
363 : weight;
364}
365
317/* 366/*
367 * adjust_weight(object, weight) adds the specified weight to an object,
368 * and also updates how much the environment(s) is/are carrying.
369 */
370static void
371adjust_weight (object *op, sint32 weight)
372{
373 while (op)
374 {
375 // adjust by actual difference to account for rounding errors
376 // i.e. (w2 - w1) / f != w2 / f - w1 / f and the latter is correct
377 weight = weight_adjust_for (op, op->carrying)
378 - weight_adjust_for (op, op->carrying - weight);
379
380 if (!weight)
381 return;
382
383 op->carrying += weight;
384
385 if (object *pl = op->visible_to ())
386 if (pl != op) // player is handled lazily
387 esrv_update_item (UPD_WEIGHT, pl, op);
388
389 op = op->env;
390 }
391}
392
393/*
318 * sum_weight() is a recursive function which calculates the weight 394 * this is a recursive function which calculates the weight
319 * an object is carrying. It goes through in figures out how much 395 * an object is carrying. It goes through op and figures out how much
320 * containers are carrying, and sums it up. 396 * containers are carrying, and sums it up.
321 */ 397 */
322long 398void
323sum_weight (object *op) 399object::update_weight ()
324{ 400{
325 long sum; 401 sint32 sum = 0;
326 object *inv;
327 402
328 for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below) 403 for (object *op = inv; op; op = op->below)
329 { 404 {
330 if (inv->inv) 405 if (op->inv)
331 sum_weight (inv); 406 op->update_weight ();
332 sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1); 407
408 sum += op->total_weight ();
409 }
410
411 sum = weight_adjust (this, sum);
412
413 if (sum != carrying)
333 } 414 {
334
335 if (op->type == CONTAINER && op->stats.Str)
336 sum = (sum * (100 - op->stats.Str)) / 100;
337
338 if (op->carrying != sum)
339 op->carrying = sum; 415 carrying = sum;
340 416
341 return sum; 417 if (object *pl = visible_to ())
418 if (pl != this) // player is handled lazily
419 esrv_update_item (UPD_WEIGHT, pl, this);
420 }
342} 421}
343 422
344/** 423/*
345 * Return the outermost environment object for a given object. 424 * Used by: Server DM commands: dumpbelow, dump. Some error messages.
346 */ 425 */
347
348object *
349object_get_env_recursive (object *op)
350{
351 while (op->env != NULL)
352 op = op->env;
353 return op;
354}
355
356/*
357 * Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
358 * Some error messages.
359 * The result of the dump is stored in the static global errmsg array.
360 */
361
362char * 426char *
363dump_object (object *op) 427dump_object (object *op)
364{ 428{
365 if (!op) 429 if (!op)
366 return strdup ("[NULLOBJ]"); 430 return strdup ("[NULLOBJ]");
367 431
368 object_freezer freezer; 432 object_freezer freezer;
369 save_object (freezer, op, 1); 433 op->write (freezer);
370 return freezer.as_string (); 434 return freezer.as_string ();
371} 435}
372 436
373/* 437/*
374 * get_nearest_part(multi-object, object 2) returns the part of the 438 * get_nearest_part(multi-object, object 2) returns the part of the
375 * multi-object 1 which is closest to the second object. 439 * multi-object 1 which is closest to the second object.
376 * If it's not a multi-object, it is returned. 440 * If it's not a multi-object, it is returned.
377 */ 441 */
378
379object * 442object *
380get_nearest_part (object *op, const object *pl) 443get_nearest_part (object *op, const object *pl)
381{ 444{
382 object *tmp, *closest; 445 object *tmp, *closest;
383 int last_dist, i; 446 int last_dist, i;
384 447
385 if (op->more == NULL) 448 if (!op->more)
386 return op; 449 return op;
450
387 for (last_dist = distance (op, pl), closest = op, tmp = op->more; tmp != NULL; tmp = tmp->more) 451 for (last_dist = distance (op, pl), closest = op, tmp = op->more;
452 tmp;
453 tmp = tmp->more)
388 if ((i = distance (tmp, pl)) < last_dist) 454 if ((i = distance (tmp, pl)) < last_dist)
389 closest = tmp, last_dist = i; 455 closest = tmp, last_dist = i;
456
390 return closest; 457 return closest;
391} 458}
392 459
393/* 460/*
394 * Returns the object which has the count-variable equal to the argument. 461 * Returns the object which has the count-variable equal to the argument.
462 * VERRRY slow.
395 */ 463 */
396
397object * 464object *
398find_object (tag_t i) 465find_object (tag_t i)
399{ 466{
400 for (object *op = object::first; op; op = op->next) 467 for_all_objects (op)
401 if (op->count == i) 468 if (op->count == i)
402 return op; 469 return op;
403 470
404 return 0; 471 return 0;
405} 472}
406 473
407/* 474/*
408 * Returns the first object which has a name equal to the argument. 475 * Returns the first object which has a name equal to the argument.
409 * Used only by the patch command, but not all that useful. 476 * Used only by the patch command, but not all that useful.
410 * Enables features like "patch <name-of-other-player> food 999" 477 * Enables features like "patch <name-of-other-player> food 999"
411 */ 478 */
412
413object * 479object *
414find_object_name (const char *str) 480find_object_name (const char *str)
415{ 481{
416 shstr_cmp str_ (str); 482 shstr_cmp str_ (str);
417 object *op; 483 object *op;
418 484
419 for (op = object::first; op != NULL; op = op->next) 485 for_all_objects (op)
420 if (op->name == str_) 486 if (op->name == str_)
421 break; 487 break;
422 488
423 return op; 489 return op;
424} 490}
425 491
426void
427free_all_object_data ()
428{
429 LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
430}
431
432/* 492/*
433 * Sets the owner and sets the skill and exp pointers to owner's current 493 * Sets the owner and sets the skill and exp pointers to owner's current
434 * skill and experience objects. 494 * skill and experience objects.
495 * ACTUALLY NO! investigate! TODO
435 */ 496 */
436void 497void
437object::set_owner (object *owner) 498object::set_owner (object *owner)
438{ 499{
500 // allow objects which own objects
439 if (!owner) 501 if (owner)
440 return;
441
442 /* next line added to allow objects which own objects */
443 /* Add a check for ownercounts in here, as I got into an endless loop
444 * with the fireball owning a poison cloud which then owned the
445 * fireball. I believe that was caused by one of the objects getting
446 * freed and then another object replacing it. Since the ownercounts
447 * didn't match, this check is valid and I believe that cause is valid.
448 */
449 while (owner->owner) 502 while (owner->owner)
450 owner = owner->owner; 503 owner = owner->owner;
504
505 if (flag [FLAG_FREED])
506 {
507 LOG (llevError | logBacktrace, "tried to set owner of %s to %s\n", debug_desc (), owner->debug_desc ());
508 return;
509 }
451 510
452 this->owner = owner; 511 this->owner = owner;
512}
513
514int
515object::slottype () const
516{
517 if (type == SKILL)
518 {
519 if (IS_COMBAT_SKILL (subtype)) return slot_combat;
520 if (IS_RANGED_SKILL (subtype)) return slot_ranged;
521 }
522 else
523 {
524 if (slot [body_combat].info) return slot_combat;
525 if (slot [body_range ].info) return slot_ranged;
526 }
527
528 return slot_none;
529}
530
531bool
532object::change_weapon (object *ob)
533{
534 if (current_weapon == ob)
535 return true;
536
537 if (chosen_skill)
538 chosen_skill->flag [FLAG_APPLIED] = false;
539
540 current_weapon = ob;
541 chosen_skill = !ob || ob->type == SKILL ? ob : find_skill_by_name (this, ob->skill);
542
543 if (chosen_skill)
544 chosen_skill->flag [FLAG_APPLIED] = true;
545
546 update_stats ();
547
548 if (ob)
549 {
550 // now check wether any body locations became invalid, in which case
551 // we cannot apply the weapon at the moment.
552 for (int i = 0; i < NUM_BODY_LOCATIONS; ++i)
553 if (slot[i].used < 0)
554 {
555 current_weapon = chosen_skill = 0;
556 update_stats ();
557
558 new_draw_info_format (NDI_UNIQUE, 0, this,
559 "You try to balance all your items at once, "
560 "but the %s is just too much for your body. "
561 "[You need to unapply some items first.]", &ob->name);
562 return false;
563 }
564
565 //new_draw_info_format (NDI_UNIQUE, 0, this, "You switch to your %s.", &ob->name);
566 }
567 else
568 ;//new_draw_info_format (NDI_UNIQUE, 0, this, "You unwield your weapons.");
569
570 if (ob && !ob->flag [FLAG_APPLIED] && ob->type != SPELL)
571 {
572 LOG (llevError | logBacktrace, "%s changed to unapplied weapon %s",
573 &name, ob->debug_desc ());
574 return false;
575 }
576
577 return true;
453} 578}
454 579
455/* Zero the key_values on op, decrementing the shared-string 580/* Zero the key_values on op, decrementing the shared-string
456 * refcounts and freeing the links. 581 * refcounts and freeing the links.
457 */ 582 */
458static void 583static void
459free_key_values (object *op) 584free_key_values (object *op)
460{ 585{
461 for (key_value *i = op->key_values; i != 0;) 586 for (key_value *i = op->key_values; i; )
462 { 587 {
463 key_value *next = i->next; 588 key_value *next = i->next;
464 delete i; 589 delete i;
465 590
466 i = next; 591 i = next;
478 * will point at garbage. 603 * will point at garbage.
479 */ 604 */
480void 605void
481object::copy_to (object *dst) 606object::copy_to (object *dst)
482{ 607{
483 bool is_freed = QUERY_FLAG (dst, FLAG_FREED); 608 dst->remove ();
484 bool is_removed = QUERY_FLAG (dst, FLAG_REMOVED);
485
486 *(object_copy *)dst = *this; 609 *(object_copy *)dst = *this;
487 610 dst->flag [FLAG_REMOVED] = true;
488 if (is_freed)
489 SET_FLAG (dst, FLAG_FREED);
490
491 if (is_removed)
492 SET_FLAG (dst, FLAG_REMOVED);
493
494 if (speed < 0)
495 dst->speed_left = speed_left - RANDOM () % 200 / 100.0;
496 611
497 /* Copy over key_values, if any. */ 612 /* Copy over key_values, if any. */
498 if (key_values) 613 if (key_values)
499 { 614 {
500 key_value *tail = 0; 615 key_value *tail = 0;
501 key_value *i;
502
503 dst->key_values = 0; 616 dst->key_values = 0;
504 617
505 for (i = key_values; i; i = i->next) 618 for (key_value *i = key_values; i; i = i->next)
506 { 619 {
507 key_value *new_link = new key_value; 620 key_value *new_link = new key_value;
508 621
509 new_link->next = 0; 622 new_link->next = 0;
510 new_link->key = i->key; 623 new_link->key = i->key;
511 new_link->value = i->value; 624 new_link->value = i->value;
512 625
513 /* Try and be clever here, too. */ 626 /* Try and be clever here, too. */
514 if (!dst->key_values) 627 if (!dst->key_values)
515 { 628 {
522 tail = new_link; 635 tail = new_link;
523 } 636 }
524 } 637 }
525 } 638 }
526 639
640 if (speed < 0)
641 dst->speed_left -= rndm ();
642
527 dst->set_speed (dst->speed); 643 dst->set_speed (dst->speed);
644}
645
646void
647object::instantiate ()
648{
649 if (!uuid.seq) // HACK
650 uuid = UUID::gen ();
651
652 speed_left = -0.1f;
653 /* copy the body_info to the body_used - this is only really
654 * need for monsters, but doesn't hurt to do it for everything.
655 * by doing so, when a monster is created, it has good starting
656 * values for the body_used info, so when items are created
657 * for it, they can be properly equipped.
658 */
659 for (int i = NUM_BODY_LOCATIONS; i--; )
660 slot[i].used = slot[i].info;
661
662 attachable::instantiate ();
528} 663}
529 664
530object * 665object *
531object::clone () 666object::clone ()
532{ 667{
533 object *neu = create (); 668 object *neu = create ();
534 copy_to (neu); 669 copy_to (neu);
670 neu->map = map; // not copied by copy_to
535 return neu; 671 return neu;
536} 672}
537 673
538/* 674/*
539 * If an object with the IS_TURNABLE() flag needs to be turned due 675 * If an object with the IS_TURNABLE() flag needs to be turned due
540 * to the closest player being on the other side, this function can 676 * to the closest player being on the other side, this function can
541 * be called to update the face variable, _and_ how it looks on the map. 677 * be called to update the face variable, _and_ how it looks on the map.
542 */ 678 */
543
544void 679void
545update_turn_face (object *op) 680update_turn_face (object *op)
546{ 681{
547 if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || op->arch == NULL) 682 if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || !op->arch)
548 return; 683 return;
684
549 SET_ANIMATION (op, op->direction); 685 SET_ANIMATION (op, op->direction);
550 update_object (op, UP_OBJ_FACE); 686 update_object (op, UP_OBJ_FACE);
551} 687}
552 688
553/* 689/*
556 * This function needs to be called whenever the speed of an object changes. 692 * This function needs to be called whenever the speed of an object changes.
557 */ 693 */
558void 694void
559object::set_speed (float speed) 695object::set_speed (float speed)
560{ 696{
561 extern int arch_init;
562
563 /* No reason putting the archetypes objects on the speed list,
564 * since they never really need to be updated.
565 */
566 if (flag [FLAG_FREED] && speed) 697 if (flag [FLAG_FREED] && speed)
567 { 698 {
568 LOG (llevError, "Object %s is freed but has speed.\n", &name); 699 LOG (llevError, "Object %s is freed but has speed.\n", &name);
569 speed = 0; 700 speed = 0;
570 } 701 }
571 702
572 this->speed = speed; 703 this->speed = speed;
573 704
574 if (arch_init) 705 if (has_active_speed ())
575 return; 706 activate ();
576
577 if (FABS (speed) > MIN_ACTIVE_SPEED)
578 {
579 /* If already on active list, don't do anything */
580 if (active_next || active_prev || this == active_objects)
581 return;
582
583 /* process_events() expects us to insert the object at the beginning
584 * of the list. */
585 active_next = active_objects;
586
587 if (active_next)
588 active_next->active_prev = this;
589
590 active_objects = this;
591 }
592 else 707 else
593 { 708 deactivate ();
594 /* If not on the active list, nothing needs to be done */
595 if (!active_next && !active_prev && this != active_objects)
596 return;
597
598 if (!active_prev)
599 {
600 active_objects = active_next;
601
602 if (active_next)
603 active_next->active_prev = 0;
604 }
605 else
606 {
607 active_prev->active_next = active_next;
608
609 if (active_next)
610 active_next->active_prev = active_prev;
611 }
612
613 active_next = 0;
614 active_prev = 0;
615 }
616}
617
618/* This function removes object 'op' from the list of active
619 * objects.
620 * This should only be used for style maps or other such
621 * reference maps where you don't want an object that isn't
622 * in play chewing up cpu time getting processed.
623 * The reverse of this is to call update_ob_speed, which
624 * will do the right thing based on the speed of the object.
625 */
626void
627remove_from_active_list (object *op)
628{
629 /* If not on the active list, nothing needs to be done */
630 if (!op->active_next && !op->active_prev && op != active_objects)
631 return;
632
633 if (op->active_prev == NULL)
634 {
635 active_objects = op->active_next;
636 if (op->active_next != NULL)
637 op->active_next->active_prev = NULL;
638 }
639 else
640 {
641 op->active_prev->active_next = op->active_next;
642 if (op->active_next)
643 op->active_next->active_prev = op->active_prev;
644 }
645 op->active_next = NULL;
646 op->active_prev = NULL;
647} 709}
648 710
649/* 711/*
650 * update_object() updates the the map. 712 * update_object() updates the the map.
651 * It takes into account invisible objects (and represent squares covered 713 * It takes into account invisible objects (and represent squares covered
664 * UP_OBJ_FACE: only the objects face has changed. 726 * UP_OBJ_FACE: only the objects face has changed.
665 */ 727 */
666void 728void
667update_object (object *op, int action) 729update_object (object *op, int action)
668{ 730{
669 MoveType move_on, move_off, move_block, move_slow; 731 if (!op)
670
671 if (op == NULL)
672 { 732 {
673 /* this should never happen */ 733 /* this should never happen */
674 LOG (llevDebug, "update_object() called for NULL object.\n"); 734 LOG (llevError | logBacktrace, "update_object() called for NULL object.\n");
675 return; 735 return;
676 } 736 }
677 737
678 if (op->env) 738 if (!op->is_on_map ())
679 { 739 {
680 /* Animation is currently handled by client, so nothing 740 /* Animation is currently handled by client, so nothing
681 * to do in this case. 741 * to do in this case.
682 */ 742 */
683 return; 743 return;
684 } 744 }
685
686 /* If the map is saving, don't do anything as everything is
687 * going to get freed anyways.
688 */
689 if (!op->map || op->map->in_memory == MAP_SAVING)
690 return;
691 745
692 /* make sure the object is within map boundaries */ 746 /* make sure the object is within map boundaries */
693 if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height) 747 if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)
694 { 748 {
695 LOG (llevError, "update_object() called for object out of map!\n"); 749 LOG (llevError, "update_object() called for object out of map!\n");
699 return; 753 return;
700 } 754 }
701 755
702 mapspace &m = op->ms (); 756 mapspace &m = op->ms ();
703 757
704 if (m.flags_ & P_NEED_UPDATE) 758 if (!(m.flags_ & P_UPTODATE))
705 /* nop */; 759 /* nop */;
706 else if (action == UP_OBJ_INSERT) 760 else if (action == UP_OBJ_INSERT)
707 { 761 {
708 // this is likely overkill, TODO: revisit (schmorp) 762 // this is likely overkill, TODO: revisit (schmorp)
709 if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW)) 763 if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))
718 /* This isn't perfect, but I don't expect a lot of objects to 772 /* This isn't perfect, but I don't expect a lot of objects to
719 * to have move_allow right now. 773 * to have move_allow right now.
720 */ 774 */
721 || ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block 775 || ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
722 || 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp) 776 || 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)
723 m.flags_ = P_NEED_UPDATE; 777 m.flags_ = 0;
724 } 778 }
725 /* if the object is being removed, we can't make intelligent 779 /* if the object is being removed, we can't make intelligent
726 * decisions, because remove_ob can't really pass the object 780 * decisions, because remove_ob can't really pass the object
727 * that is being removed. 781 * that is being removed.
728 */ 782 */
729 else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE) 783 else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
730 m.flags_ = P_NEED_UPDATE; 784 m.flags_ = 0;
731 else if (action == UP_OBJ_FACE) 785 else if (action == UP_OBJ_FACE)
732 /* Nothing to do for that case */ ; 786 /* Nothing to do for that case */ ;
733 else 787 else
734 LOG (llevError, "update_object called with invalid action: %d\n", action); 788 LOG (llevError, "update_object called with invalid action: %d\n", action);
735 789
736 if (op->more) 790 if (op->more)
737 update_object (op->more, action); 791 update_object (op->more, action);
738} 792}
739 793
740object::vector object::objects; // not yet used
741object *object::first;
742
743object::object () 794object::object ()
744{ 795{
745 SET_FLAG (this, FLAG_REMOVED); 796 SET_FLAG (this, FLAG_REMOVED);
746 797
747 expmul = 1.0; 798 expmul = 1.0;
748 face = blank_face; 799 face = blank_face;
749} 800}
750 801
751object::~object () 802object::~object ()
752{ 803{
804 unlink ();
805
753 free_key_values (this); 806 free_key_values (this);
754} 807}
755 808
809static int object_count;
810
756void object::link () 811void object::link ()
757{ 812{
813 assert (!index);//D
814 uuid = UUID::gen ();
758 count = ++ob_count; 815 count = ++object_count;
759 uuid = gen_uuid ();
760 816
761 prev = 0; 817 refcnt_inc ();
762 next = object::first; 818 objects.insert (this);
763
764 if (object::first)
765 object::first->prev = this;
766
767 object::first = this;
768} 819}
769 820
770void object::unlink () 821void object::unlink ()
771{ 822{
772 if (this == object::first) 823 if (!index)
773 object::first = next; 824 return;
774 825
775 /* Remove this object from the list of used objects */ 826 objects.erase (this);
776 if (prev) prev->next = next; 827 refcnt_dec ();
777 if (next) next->prev = prev; 828}
778 829
779 prev = 0; 830void
780 next = 0; 831object::activate ()
832{
833 /* If already on active list, don't do anything */
834 if (active)
835 return;
836
837 if (has_active_speed ())
838 actives.insert (this);
839}
840
841void
842object::activate_recursive ()
843{
844 activate ();
845
846 for (object *op = inv; op; op = op->below)
847 op->activate_recursive ();
848}
849
850/* This function removes object 'op' from the list of active
851 * objects.
852 * This should only be used for style maps or other such
853 * reference maps where you don't want an object that isn't
854 * in play chewing up cpu time getting processed.
855 * The reverse of this is to call update_ob_speed, which
856 * will do the right thing based on the speed of the object.
857 */
858void
859object::deactivate ()
860{
861 /* If not on the active list, nothing needs to be done */
862 if (!active)
863 return;
864
865 actives.erase (this);
866}
867
868void
869object::deactivate_recursive ()
870{
871 for (object *op = inv; op; op = op->below)
872 op->deactivate_recursive ();
873
874 deactivate ();
875}
876
877void
878object::set_flag_inv (int flag, int value)
879{
880 for (object *op = inv; op; op = op->below)
881 {
882 op->flag [flag] = value;
883 op->set_flag_inv (flag, value);
884 }
781} 885}
782 886
783/* 887/*
784 * Remove and free all objects in the inventory of the given object. 888 * Remove and free all objects in the inventory of the given object.
785 * object.c ? 889 * object.c ?
786 */ 890 */
787void 891void
788object::destroy_inv (bool drop_to_ground) 892object::destroy_inv (bool drop_to_ground)
789{ 893{
894 // need to check first, because the checks below might segfault
895 // as we might be on an invalid mapspace and crossfire code
896 // is too buggy to ensure that the inventory is empty.
897 // corollary: if you create arrows etc. with stuff in its inventory,
898 // cf will crash below with off-map x and y
899 if (!inv)
900 return;
901
790 /* Only if the space blocks everything do we not process - 902 /* Only if the space blocks everything do we not process -
791 * if some form of movement is allowed, let objects 903 * if some form of movement is allowed, let objects
792 * drop on that space. 904 * drop on that space.
793 */ 905 */
794 if (!drop_to_ground 906 if (!drop_to_ground
795 || !map 907 || !map
796 || map->in_memory != MAP_IN_MEMORY 908 || map->in_memory != MAP_ACTIVE
909 || map->nodrop
797 || map->at (x, y).move_block == MOVE_ALL) 910 || ms ().move_block == MOVE_ALL)
798 { 911 {
799 while (inv) 912 while (inv)
800 { 913 {
801 inv->destroy_inv (drop_to_ground); 914 inv->destroy_inv (false);
802 inv->destroy (); 915 inv->destroy ();
803 } 916 }
804 } 917 }
805 else 918 else
806 { /* Put objects in inventory onto this space */ 919 { /* Put objects in inventory onto this space */
810 923
811 if (op->flag [FLAG_STARTEQUIP] 924 if (op->flag [FLAG_STARTEQUIP]
812 || op->flag [FLAG_NO_DROP] 925 || op->flag [FLAG_NO_DROP]
813 || op->type == RUNE 926 || op->type == RUNE
814 || op->type == TRAP 927 || op->type == TRAP
815 || op->flag [FLAG_IS_A_TEMPLATE]) 928 || op->flag [FLAG_IS_A_TEMPLATE]
929 || op->flag [FLAG_DESTROY_ON_DEATH])
816 op->destroy (); 930 op->destroy (true);
817 else 931 else
818 map->insert (op, x, y); 932 map->insert (op, x, y);
819 } 933 }
820 } 934 }
821} 935}
825 object *op = new object; 939 object *op = new object;
826 op->link (); 940 op->link ();
827 return op; 941 return op;
828} 942}
829 943
944static struct freed_map : maptile
945{
946 freed_map ()
947 {
948 path = "<freed objects map>";
949 name = "/internal/freed_objects_map";
950 width = 3;
951 height = 3;
952 nodrop = 1;
953
954 alloc ();
955 in_memory = MAP_ACTIVE;
956 }
957
958 ~freed_map ()
959 {
960 destroy ();
961 }
962} freed_map; // freed objects are moved here to avoid crashes
963
830void 964void
831object::do_destroy () 965object::do_destroy ()
832{ 966{
833 if (flag [FLAG_IS_LINKED]) 967 if (flag [FLAG_IS_LINKED])
834 remove_button_link (this); 968 remove_button_link (this);
835 969
836 if (flag [FLAG_FRIENDLY]) 970 if (flag [FLAG_FRIENDLY])
837 remove_friendly_object (this); 971 remove_friendly_object (this);
838 972
839 if (!flag [FLAG_REMOVED])
840 remove (); 973 remove ();
841 974
842 if (flag [FLAG_FREED]) 975 attachable::do_destroy ();
843 return;
844 976
845 set_speed (0); 977 deactivate ();
978 unlink ();
846 979
847 flag [FLAG_FREED] = 1; 980 flag [FLAG_FREED] = 1;
848 981
849 attachable::do_destroy ();
850
851 destroy_inv (true);
852 unlink ();
853
854 // hack to ensure that freed objects still have a valid map 982 // hack to ensure that freed objects still have a valid map
855 {
856 static maptile *freed_map; // freed objects are moved here to avoid crashes
857
858 if (!freed_map)
859 {
860 freed_map = new maptile;
861
862 freed_map->name = "/internal/freed_objects_map";
863 freed_map->width = 3;
864 freed_map->height = 3;
865
866 freed_map->allocate ();
867 }
868
869 map = freed_map; 983 map = &freed_map;
870 x = 1; 984 x = 1;
871 y = 1; 985 y = 1;
872 }
873
874 head = 0;
875 986
876 if (more) 987 if (more)
877 { 988 {
878 more->destroy (); 989 more->destroy ();
879 more = 0; 990 more = 0;
880 } 991 }
881 992
993 head = 0;
994
882 // clear those pointers that likely might have circular references to us 995 // clear those pointers that likely might cause circular references
883 owner = 0; 996 owner = 0;
884 enemy = 0; 997 enemy = 0;
885 attacked_by = 0; 998 attacked_by = 0;
886 999 current_weapon = 0;
887 // only relevant for players(?), but make sure of it anyways
888 contr = 0;
889} 1000}
890 1001
891void 1002void
892object::destroy (bool destroy_inventory) 1003object::destroy (bool destroy_inventory)
893{ 1004{
894 if (destroyed ()) 1005 if (destroyed ())
895 return; 1006 return;
896 1007
1008 if (!is_head () && !head->destroyed ())
1009 {
1010 LOG (llevError | logBacktrace, "tried to destroy the tail of an object");
1011 head->destroy (destroy_inventory);
1012 return;
1013 }
1014
897 if (destroy_inventory) 1015 destroy_inv (!destroy_inventory);
898 destroy_inv (false); 1016
1017 if (is_head ())
1018 if (sound_destroy)
1019 play_sound (sound_destroy);
1020 else if (flag [FLAG_MONSTER])
1021 play_sound (sound_find ("monster_destroy")); // quick hack, too lazy to create a generic mechanism
899 1022
900 attachable::destroy (); 1023 attachable::destroy ();
901}
902
903/*
904 * sub_weight() recursively (outwards) subtracts a number from the
905 * weight of an object (and what is carried by it's environment(s)).
906 */
907void
908sub_weight (object *op, signed long weight)
909{
910 while (op != NULL)
911 {
912 if (op->type == CONTAINER)
913 weight = (signed long) (weight * (100 - op->stats.Str) / 100);
914
915 op->carrying -= weight;
916 op = op->env;
917 }
918} 1024}
919 1025
920/* op->remove (): 1026/* op->remove ():
921 * This function removes the object op from the linked list of objects 1027 * This function removes the object op from the linked list of objects
922 * which it is currently tied to. When this function is done, the 1028 * which it is currently tied to. When this function is done, the
923 * object will have no environment. If the object previously had an 1029 * object will have no environment. If the object previously had an
924 * environment, the x and y coordinates will be updated to 1030 * environment, the x and y coordinates will be updated to
925 * the previous environment. 1031 * the previous environment.
926 * Beware: This function is called from the editor as well!
927 */ 1032 */
928void 1033void
929object::remove () 1034object::do_remove ()
930{ 1035{
931 object *tmp, *last = 0; 1036 object *tmp, *last = 0;
932 object *otmp; 1037 object *otmp;
933 1038
934 if (QUERY_FLAG (this, FLAG_REMOVED)) 1039 if (flag [FLAG_REMOVED])
935 return; 1040 return;
936 1041
937 SET_FLAG (this, FLAG_REMOVED);
938 INVOKE_OBJECT (REMOVE, this); 1042 INVOKE_OBJECT (REMOVE, this);
1043
1044 flag [FLAG_REMOVED] = true;
939 1045
940 if (more) 1046 if (more)
941 more->remove (); 1047 more->remove ();
942 1048
943 /* 1049 /*
944 * In this case, the object to be removed is in someones 1050 * In this case, the object to be removed is in someones
945 * inventory. 1051 * inventory.
946 */ 1052 */
947 if (env) 1053 if (env)
948 { 1054 {
1055 flag [FLAG_REMOVED] = false; // hack around the issue of visible_to checking flag_removed
1056 if (object *pl = visible_to ())
1057 esrv_del_item (pl->contr, count);
1058 flag [FLAG_REMOVED] = true; // hack around the issue of visible_to checking flag_removed
1059
1060 adjust_weight (env, -total_weight ());
1061
1062 *(above ? &above->below : &env->inv) = below;
1063
949 if (nrof) 1064 if (below)
950 sub_weight (env, weight * nrof); 1065 below->above = above;
951 else 1066
952 sub_weight (env, weight + carrying); 1067 /* we set up values so that it could be inserted into
1068 * the map, but we don't actually do that - it is up
1069 * to the caller to decide what we want to do.
1070 */
1071 map = env->map;
1072 x = env->x;
1073 y = env->y;
1074 above = 0;
1075 below = 0;
1076 env = 0;
953 1077
954 /* NO_FIX_PLAYER is set when a great many changes are being 1078 /* NO_FIX_PLAYER is set when a great many changes are being
955 * made to players inventory. If set, avoiding the call 1079 * made to players inventory. If set, avoiding the call
956 * to save cpu time. 1080 * to save cpu time.
957 */ 1081 */
958 if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER)) 1082 if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
959 otmp->update_stats (); 1083 otmp->update_stats ();
960
961 if (above != NULL)
962 above->below = below;
963 else
964 env->inv = below;
965
966 if (below != NULL)
967 below->above = above;
968
969 /* we set up values so that it could be inserted into
970 * the map, but we don't actually do that - it is up
971 * to the caller to decide what we want to do.
972 */
973 x = env->x, y = env->y;
974 map = env->map;
975 above = 0, below = 0;
976 env = 0;
977 } 1084 }
978 else if (map) 1085 else if (map)
979 { 1086 {
980 /* Re did the following section of code - it looks like it had 1087 map->dirty = true;
981 * lots of logic for things we no longer care about 1088 mapspace &ms = this->ms ();
1089
1090 if (object *pl = ms.player ())
982 */ 1091 {
1092 if (type == PLAYER) // this == pl(!)
1093 {
1094 // leaving a spot always closes any open container on the ground
1095 if (container && !container->env)
1096 // this causes spurious floorbox updates, but it ensures
1097 // that the CLOSE event is being sent.
1098 close_container ();
1099
1100 --map->players;
1101 map->touch ();
1102 }
1103 else if (pl->container == this)
1104 {
1105 // removing a container should close it
1106 close_container ();
1107 }
1108
1109 esrv_del_item (pl->contr, count);
1110 }
983 1111
984 /* link the object above us */ 1112 /* link the object above us */
985 if (above) 1113 if (above)
986 above->below = below; 1114 above->below = below;
987 else 1115 else
988 map->at (x, y).top = below; /* we were top, set new top */ 1116 ms.top = below; /* we were top, set new top */
989 1117
990 /* Relink the object below us, if there is one */ 1118 /* Relink the object below us, if there is one */
991 if (below) 1119 if (below)
992 below->above = above; 1120 below->above = above;
993 else 1121 else
995 /* Nothing below, which means we need to relink map object for this space 1123 /* Nothing below, which means we need to relink map object for this space
996 * use translated coordinates in case some oddness with map tiling is 1124 * use translated coordinates in case some oddness with map tiling is
997 * evident 1125 * evident
998 */ 1126 */
999 if (GET_MAP_OB (map, x, y) != this) 1127 if (GET_MAP_OB (map, x, y) != this)
1000 {
1001 char *dump = dump_object (this);
1002 LOG (llevError,
1003 "remove_ob: GET_MAP_OB does not return object to be removed even though it appears to be on the bottom?\n%s\n", dump); 1128 LOG (llevError, "remove_ob: GET_MAP_OB does not return object to be removed even though it appears to be on the bottom? %s\n", debug_desc ());
1004 free (dump);
1005 dump = dump_object (GET_MAP_OB (map, x, y));
1006 LOG (llevError, "%s\n", dump);
1007 free (dump);
1008 }
1009 1129
1010 map->at (x, y).bot = above; /* goes on above it. */ 1130 ms.bot = above; /* goes on above it. */
1011 } 1131 }
1012 1132
1013 above = 0; 1133 above = 0;
1014 below = 0; 1134 below = 0;
1015 1135
1016 if (map->in_memory == MAP_SAVING) 1136 if (map->in_memory == MAP_SAVING)
1017 return; 1137 return;
1018 1138
1019 int check_walk_off = !flag [FLAG_NO_APPLY]; 1139 int check_walk_off = !flag [FLAG_NO_APPLY];
1020 1140
1141 if (object *pl = ms.player ())
1142 {
1143 if (pl->container == this)
1144 /* If a container that the player is currently using somehow gets
1145 * removed (most likely destroyed), update the player view
1146 * appropriately.
1147 */
1148 pl->close_container ();
1149
1150 //TODO: the floorbox prev/next might need updating
1151 //esrv_del_item (pl->contr, count);
1152 //TODO: update floorbox to preserve ordering
1153 if (pl->contr->ns)
1154 pl->contr->ns->floorbox_update ();
1155 }
1156
1021 for (tmp = map->at (x, y).bot; tmp; tmp = tmp->above) 1157 for (tmp = ms.bot; tmp; tmp = tmp->above)
1022 { 1158 {
1023 /* No point updating the players look faces if he is the object 1159 /* No point updating the players look faces if he is the object
1024 * being removed. 1160 * being removed.
1025 */ 1161 */
1026 1162
1027 if (tmp->type == PLAYER && tmp != this)
1028 {
1029 /* If a container that the player is currently using somehow gets
1030 * removed (most likely destroyed), update the player view
1031 * appropriately.
1032 */
1033 if (tmp->container == this)
1034 {
1035 flag [FLAG_APPLIED] = 0;
1036 tmp->container = 0;
1037 }
1038
1039 if (tmp->contr->ns)
1040 tmp->contr->ns->floorbox_update ();
1041 }
1042
1043 /* See if player moving off should effect something */ 1163 /* See if object moving off should effect something */
1044 if (check_walk_off 1164 if (check_walk_off
1045 && ((move_type & tmp->move_off) 1165 && ((move_type & tmp->move_off)
1046 && (move_type & ~tmp->move_off & ~tmp->move_block) == 0)) 1166 && (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
1047 { 1167 {
1048 move_apply (tmp, this, 0); 1168 move_apply (tmp, this, 0);
1049 1169
1050 if (destroyed ()) 1170 if (destroyed ())
1051 LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ()); 1171 LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1052 } 1172 }
1053 1173
1054 /* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1055
1056 if (tmp->above == tmp)
1057 tmp->above = 0;
1058
1059 last = tmp; 1174 last = tmp;
1060 } 1175 }
1061 1176
1062 /* last == NULL of there are no objects on this space */ 1177 /* last == NULL if there are no objects on this space */
1178 //TODO: this makes little sense, why only update the topmost object?
1063 if (!last) 1179 if (!last)
1064 map->at (x, y).flags_ = P_NEED_UPDATE; 1180 map->at (x, y).flags_ = 0;
1065 else 1181 else
1066 update_object (last, UP_OBJ_REMOVE); 1182 update_object (last, UP_OBJ_REMOVE);
1067 1183
1068 if (flag [FLAG_BLOCKSVIEW] || glow_radius) 1184 if (flag [FLAG_BLOCKSVIEW] || glow_radius)
1069 update_all_los (map, x, y); 1185 update_all_los (map, x, y);
1082merge_ob (object *op, object *top) 1198merge_ob (object *op, object *top)
1083{ 1199{
1084 if (!op->nrof) 1200 if (!op->nrof)
1085 return 0; 1201 return 0;
1086 1202
1087 if (top) 1203 if (!top)
1088 for (top = op; top && top->above; top = top->above) 1204 for (top = op; top && top->above; top = top->above)
1089 ; 1205 ;
1090 1206
1091 for (; top; top = top->below) 1207 for (; top; top = top->below)
1092 {
1093 if (top == op)
1094 continue;
1095
1096 if (object::can_merge (op, top)) 1208 if (object::can_merge (op, top))
1097 { 1209 {
1098 top->nrof += op->nrof; 1210 top->nrof += op->nrof;
1099 1211
1100/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/ 1212 if (object *pl = top->visible_to ())
1101 op->weight = 0; /* Don't want any adjustements now */ 1213 esrv_update_item (UPD_NROF, pl, top);
1214
1215 op->weight = 0; // cancel the addition above
1216 op->carrying = 0; // must be 0 already
1217
1102 op->destroy (); 1218 op->destroy (1);
1219
1103 return top; 1220 return top;
1104 } 1221 }
1105 }
1106 1222
1107 return 0; 1223 return 0;
1108} 1224}
1109 1225
1226void
1227object::expand_tail ()
1228{
1229 if (more)
1230 return;
1231
1232 object *prev = this;
1233
1234 for (archetype *at = (archetype *)arch->more; at; at = (archetype *)at->more)
1235 {
1236 object *op = arch_to_object (at);
1237
1238 op->name = name;
1239 op->name_pl = name_pl;
1240 op->title = title;
1241
1242 op->head = this;
1243 prev->more = op;
1244
1245 prev = op;
1246 }
1247}
1248
1110/* 1249/*
1111 * same as insert_ob_in_map except it handle separate coordinates and do a clean 1250 * same as insert_ob_in_map except it handles separate coordinates and does a clean
1112 * job preparing multi-part monsters 1251 * job preparing multi-part monsters.
1113 */ 1252 */
1114object * 1253object *
1115insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y) 1254insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
1116{ 1255{
1117 for (object *tmp = op->head_ (); tmp; tmp = tmp->more) 1256 for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
1118 { 1257 {
1119 tmp->x = x + tmp->arch->clone.x; 1258 tmp->x = x + tmp->arch->x;
1120 tmp->y = y + tmp->arch->clone.y; 1259 tmp->y = y + tmp->arch->y;
1121 } 1260 }
1122 1261
1123 return insert_ob_in_map (op, m, originator, flag); 1262 return insert_ob_in_map (op, m, originator, flag);
1124} 1263}
1125 1264
1144 * just 'op' otherwise 1283 * just 'op' otherwise
1145 */ 1284 */
1146object * 1285object *
1147insert_ob_in_map (object *op, maptile *m, object *originator, int flag) 1286insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1148{ 1287{
1149 object *tmp, *top, *floor = NULL; 1288 assert (!op->flag [FLAG_FREED]);
1150 sint16 x, y;
1151 1289
1152 if (QUERY_FLAG (op, FLAG_FREED)) 1290 op->remove ();
1153 {
1154 LOG (llevError, "Trying to insert freed object!\n");
1155 return NULL;
1156 }
1157
1158 if (m == NULL)
1159 {
1160 char *dump = dump_object (op);
1161 LOG (llevError, "Trying to insert in null-map!\n%s\n", dump);
1162 free (dump);
1163 return op;
1164 }
1165
1166 if (out_of_map (m, op->x, op->y))
1167 {
1168 char *dump = dump_object (op);
1169 LOG (llevError, "Trying to insert object outside the map.\n%s\n", dump);
1170#ifdef MANY_CORES
1171 /* Better to catch this here, as otherwise the next use of this object
1172 * is likely to cause a crash. Better to find out where it is getting
1173 * improperly inserted.
1174 */
1175 abort ();
1176#endif
1177 free (dump);
1178 return op;
1179 }
1180
1181 if (!QUERY_FLAG (op, FLAG_REMOVED))
1182 {
1183 char *dump = dump_object (op);
1184 LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", dump);
1185 free (dump);
1186 return op;
1187 }
1188
1189 if (op->more)
1190 {
1191 /* The part may be on a different map. */
1192
1193 object *more = op->more;
1194
1195 /* We really need the caller to normalize coordinates - if
1196 * we set the map, that doesn't work if the location is within
1197 * a map and this is straddling an edge. So only if coordinate
1198 * is clear wrong do we normalize it.
1199 */
1200 if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
1201 more->map = get_map_from_coord (m, &more->x, &more->y);
1202 else if (!more->map)
1203 {
1204 /* For backwards compatibility - when not dealing with tiled maps,
1205 * more->map should always point to the parent.
1206 */
1207 more->map = m;
1208 }
1209
1210 if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
1211 {
1212 if (!op->head)
1213 LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
1214
1215 return 0;
1216 }
1217 }
1218
1219 CLEAR_FLAG (op, FLAG_REMOVED);
1220 1291
1221 /* Ideally, the caller figures this out. However, it complicates a lot 1292 /* Ideally, the caller figures this out. However, it complicates a lot
1222 * of areas of callers (eg, anything that uses find_free_spot would now 1293 * of areas of callers (eg, anything that uses find_free_spot would now
1223 * need extra work 1294 * need extra work
1224 */ 1295 */
1225 op->map = get_map_from_coord (m, &op->x, &op->y); 1296 if (!xy_normalise (m, op->x, op->y))
1226 x = op->x; 1297 {
1227 y = op->y; 1298 op->head_ ()->destroy (1);// remove head_ once all tail object destroyers found
1299 return 0;
1300 }
1301
1302 if (object *more = op->more)
1303 if (!insert_ob_in_map (more, m, originator, flag))
1304 return 0;
1305
1306 CLEAR_FLAG (op, FLAG_REMOVED);
1307
1308 op->map = m;
1309 mapspace &ms = op->ms ();
1228 1310
1229 /* this has to be done after we translate the coordinates. 1311 /* this has to be done after we translate the coordinates.
1230 */ 1312 */
1231 if (op->nrof && !(flag & INS_NO_MERGE)) 1313 if (op->nrof && !(flag & INS_NO_MERGE))
1232 for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above) 1314 for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1233 if (object::can_merge (op, tmp)) 1315 if (object::can_merge (op, tmp))
1234 { 1316 {
1317 // TODO: we atcually want to update tmp, not op,
1318 // but some caller surely breaks when we return tmp
1319 // from here :/
1235 op->nrof += tmp->nrof; 1320 op->nrof += tmp->nrof;
1236 tmp->destroy (); 1321 tmp->destroy (1);
1237 } 1322 }
1238 1323
1239 CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */ 1324 CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1240 CLEAR_FLAG (op, FLAG_INV_LOCKED); 1325 CLEAR_FLAG (op, FLAG_INV_LOCKED);
1241 1326
1254 op->below = originator->below; 1339 op->below = originator->below;
1255 1340
1256 if (op->below) 1341 if (op->below)
1257 op->below->above = op; 1342 op->below->above = op;
1258 else 1343 else
1259 op->ms ().bot = op; 1344 ms.bot = op;
1260 1345
1261 /* since *below* originator, no need to update top */ 1346 /* since *below* originator, no need to update top */
1262 originator->below = op; 1347 originator->below = op;
1263 } 1348 }
1264 else 1349 else
1265 { 1350 {
1351 object *top, *floor = NULL;
1352
1353 top = ms.bot;
1354
1266 /* If there are other objects, then */ 1355 /* If there are other objects, then */
1267 if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL)) 1356 if (top)
1268 { 1357 {
1269 object *last = NULL; 1358 object *last = 0;
1270 1359
1271 /* 1360 /*
1272 * If there are multiple objects on this space, we do some trickier handling. 1361 * If there are multiple objects on this space, we do some trickier handling.
1273 * We've already dealt with merging if appropriate. 1362 * We've already dealt with merging if appropriate.
1274 * Generally, we want to put the new object on top. But if 1363 * Generally, we want to put the new object on top. But if
1278 * once we get to them. This reduces the need to traverse over all of 1367 * once we get to them. This reduces the need to traverse over all of
1279 * them when adding another one - this saves quite a bit of cpu time 1368 * them when adding another one - this saves quite a bit of cpu time
1280 * when lots of spells are cast in one area. Currently, it is presumed 1369 * when lots of spells are cast in one area. Currently, it is presumed
1281 * that flying non pickable objects are spell objects. 1370 * that flying non pickable objects are spell objects.
1282 */ 1371 */
1283 1372 for (top = ms.bot; top; top = top->above)
1284 while (top != NULL)
1285 { 1373 {
1286 if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR)) 1374 if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))
1287 floor = top; 1375 floor = top;
1288 1376
1289 if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR)) 1377 if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))
1292 top = top->below; 1380 top = top->below;
1293 break; 1381 break;
1294 } 1382 }
1295 1383
1296 last = top; 1384 last = top;
1297 top = top->above;
1298 } 1385 }
1299 1386
1300 /* Don't want top to be NULL, so set it to the last valid object */ 1387 /* Don't want top to be NULL, so set it to the last valid object */
1301 top = last; 1388 top = last;
1302 1389
1304 * looks like instead of lots of conditions here. 1391 * looks like instead of lots of conditions here.
1305 * makes things faster, and effectively the same result. 1392 * makes things faster, and effectively the same result.
1306 */ 1393 */
1307 1394
1308 /* Have object 'fall below' other objects that block view. 1395 /* Have object 'fall below' other objects that block view.
1309 * Unless those objects are exits, type 66 1396 * Unless those objects are exits.
1310 * If INS_ON_TOP is used, don't do this processing 1397 * If INS_ON_TOP is used, don't do this processing
1311 * Need to find the object that in fact blocks view, otherwise 1398 * Need to find the object that in fact blocks view, otherwise
1312 * stacking is a bit odd. 1399 * stacking is a bit odd.
1313 */ 1400 */
1314 if (!(flag & INS_ON_TOP) && 1401 if (!(flag & INS_ON_TOP)
1315 (get_map_flags (op->map, 0, op->x, op->y, 0, 0) & P_BLOCKSVIEW) && (op->face && !op->face->visibility)) 1402 && ms.flags () & P_BLOCKSVIEW
1403 && (op->face && !faces [op->face].visibility))
1316 { 1404 {
1317 for (last = top; last != floor; last = last->below) 1405 for (last = top; last != floor; last = last->below)
1318 if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT)) 1406 if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
1319 break; 1407 break;
1408
1320 /* Check to see if we found the object that blocks view, 1409 /* Check to see if we found the object that blocks view,
1321 * and make sure we have a below pointer for it so that 1410 * and make sure we have a below pointer for it so that
1322 * we can get inserted below this one, which requires we 1411 * we can get inserted below this one, which requires we
1323 * set top to the object below us. 1412 * set top to the object below us.
1324 */ 1413 */
1325 if (last && last->below && last != floor) 1414 if (last && last->below && last != floor)
1326 top = last->below; 1415 top = last->below;
1327 } 1416 }
1328 } /* If objects on this space */ 1417 } /* If objects on this space */
1329 1418
1330 if (flag & INS_MAP_LOAD)
1331 top = GET_MAP_TOP (op->map, op->x, op->y);
1332
1333 if (flag & INS_ABOVE_FLOOR_ONLY) 1419 if (flag & INS_ABOVE_FLOOR_ONLY)
1334 top = floor; 1420 top = floor;
1335 1421
1336 /* Top is the object that our object (op) is going to get inserted above. 1422 /* Top is the object that our object (op) is going to get inserted above.
1337 */ 1423 */
1338 1424
1339 /* First object on this space */ 1425 /* First object on this space */
1340 if (!top) 1426 if (!top)
1341 { 1427 {
1342 op->above = GET_MAP_OB (op->map, op->x, op->y); 1428 op->above = ms.bot;
1343 1429
1344 if (op->above) 1430 if (op->above)
1345 op->above->below = op; 1431 op->above->below = op;
1346 1432
1347 op->below = NULL; 1433 op->below = 0;
1348 op->ms ().bot = op; 1434 ms.bot = op;
1349 } 1435 }
1350 else 1436 else
1351 { /* get inserted into the stack above top */ 1437 { /* get inserted into the stack above top */
1352 op->above = top->above; 1438 op->above = top->above;
1353 1439
1356 1442
1357 op->below = top; 1443 op->below = top;
1358 top->above = op; 1444 top->above = op;
1359 } 1445 }
1360 1446
1361 if (op->above == NULL) 1447 if (!op->above)
1362 op->ms ().top = op; 1448 ms.top = op;
1363 } /* else not INS_BELOW_ORIGINATOR */ 1449 } /* else not INS_BELOW_ORIGINATOR */
1364 1450
1365 if (op->type == PLAYER) 1451 if (op->type == PLAYER)
1452 {
1366 op->contr->do_los = 1; 1453 op->contr->do_los = 1;
1454 ++op->map->players;
1455 op->map->touch ();
1456 }
1367 1457
1368 /* If we have a floor, we know the player, if any, will be above 1458 op->map->dirty = true;
1369 * it, so save a few ticks and start from there. 1459
1370 */
1371 if (!(flag & INS_MAP_LOAD))
1372 if (object *pl = op->ms ().player ()) 1460 if (object *pl = ms.player ())
1461 //TODO: the floorbox prev/next might need updating
1462 //esrv_send_item (pl, op);
1463 //TODO: update floorbox to preserve ordering
1373 if (pl->contr->ns) 1464 if (pl->contr->ns)
1374 pl->contr->ns->floorbox_update (); 1465 pl->contr->ns->floorbox_update ();
1375 1466
1376 /* If this object glows, it may affect lighting conditions that are 1467 /* If this object glows, it may affect lighting conditions that are
1377 * visible to others on this map. But update_all_los is really 1468 * visible to others on this map. But update_all_los is really
1378 * an inefficient way to do this, as it means los for all players 1469 * an inefficient way to do this, as it means los for all players
1379 * on the map will get recalculated. The players could very well 1470 * on the map will get recalculated. The players could very well
1380 * be far away from this change and not affected in any way - 1471 * be far away from this change and not affected in any way -
1381 * this should get redone to only look for players within range, 1472 * this should get redone to only look for players within range,
1382 * or just updating the P_NEED_UPDATE for spaces within this area 1473 * or just updating the P_UPTODATE for spaces within this area
1383 * of effect may be sufficient. 1474 * of effect may be sufficient.
1384 */ 1475 */
1385 if (op->map->darkness && (op->glow_radius != 0)) 1476 if (op->map->darkness && (op->glow_radius != 0))
1386 update_all_los (op->map, op->x, op->y); 1477 update_all_los (op->map, op->x, op->y);
1387 1478
1398 * blocked() and wall() work properly), and these flags are updated by 1489 * blocked() and wall() work properly), and these flags are updated by
1399 * update_object(). 1490 * update_object().
1400 */ 1491 */
1401 1492
1402 /* if this is not the head or flag has been passed, don't check walk on status */ 1493 /* if this is not the head or flag has been passed, don't check walk on status */
1403 if (!(flag & INS_NO_WALK_ON) && !op->head) 1494 if (!(flag & INS_NO_WALK_ON) && op->head_ () == op)
1404 { 1495 {
1405 if (check_move_on (op, originator)) 1496 if (check_move_on (op, originator))
1406 return 0; 1497 return 0;
1407 1498
1408 /* If we are a multi part object, lets work our way through the check 1499 /* If we are a multi part object, lets work our way through the check
1409 * walk on's. 1500 * walk on's.
1410 */ 1501 */
1411 for (tmp = op->more; tmp != NULL; tmp = tmp->more) 1502 for (object *tmp = op->more; tmp; tmp = tmp->more)
1412 if (check_move_on (tmp, originator)) 1503 if (check_move_on (tmp, originator))
1413 return 0; 1504 return 0;
1414 } 1505 }
1415 1506
1416 return op; 1507 return op;
1421 * op is the object to insert it under: supplies x and the map. 1512 * op is the object to insert it under: supplies x and the map.
1422 */ 1513 */
1423void 1514void
1424replace_insert_ob_in_map (const char *arch_string, object *op) 1515replace_insert_ob_in_map (const char *arch_string, object *op)
1425{ 1516{
1426 object *tmp, *tmp1;
1427
1428 /* first search for itself and remove any old instances */ 1517 /* first search for itself and remove any old instances */
1429 1518
1430 for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above) 1519 for (object *tmp = op->ms ().bot; tmp; tmp = tmp->above)
1431 if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */ 1520 if (!strcmp (tmp->arch->archname, arch_string)) /* same archetype */
1432 tmp->destroy (); 1521 tmp->destroy (1);
1433 1522
1434 tmp1 = arch_to_object (archetype::find (arch_string)); 1523 object *tmp = arch_to_object (archetype::find (arch_string));
1435 1524
1436 tmp1->x = op->x; 1525 tmp->x = op->x;
1437 tmp1->y = op->y; 1526 tmp->y = op->y;
1527
1438 insert_ob_in_map (tmp1, op->map, op, 0); 1528 insert_ob_in_map (tmp, op->map, op, 0);
1439} 1529}
1440 1530
1441object * 1531object *
1442object::insert_at (object *where, object *originator, int flags) 1532object::insert_at (object *where, object *originator, int flags)
1443{ 1533{
1534 if (where->env)
1535 return where->env->insert (this);
1536 else
1444 where->map->insert (this, where->x, where->y, originator, flags); 1537 return where->map->insert (this, where->x, where->y, originator, flags);
1445} 1538}
1446 1539
1447/* 1540/*
1448 * get_split_ob(ob,nr) splits up ob into two parts. The part which
1449 * is returned contains nr objects, and the remaining parts contains
1450 * the rest (or is removed and freed if that number is 0).
1451 * On failure, NULL is returned, and the reason put into the
1452 * global static errmsg array.
1453 */
1454object *
1455get_split_ob (object *orig_ob, uint32 nr)
1456{
1457 object *newob;
1458 int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);
1459
1460 if (orig_ob->nrof < nr)
1461 {
1462 sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
1463 return NULL;
1464 }
1465
1466 newob = object_create_clone (orig_ob);
1467
1468 if ((orig_ob->nrof -= nr) < 1)
1469 orig_ob->destroy (1);
1470 else if (!is_removed)
1471 {
1472 if (orig_ob->env != NULL)
1473 sub_weight (orig_ob->env, orig_ob->weight * nr);
1474 if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
1475 {
1476 strcpy (errmsg, "Tried to split object whose map is not in memory.");
1477 LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1478 return NULL;
1479 }
1480 }
1481
1482 newob->nrof = nr;
1483
1484 return newob;
1485}
1486
1487/*
1488 * decrease_ob_nr(object, number) decreases a specified number from 1541 * decrease(object, number) decreases a specified number from
1489 * the amount of an object. If the amount reaches 0, the object 1542 * the amount of an object. If the amount reaches 0, the object
1490 * is subsequently removed and freed. 1543 * is subsequently removed and freed.
1491 * 1544 *
1492 * Return value: 'op' if something is left, NULL if the amount reached 0 1545 * Return value: 'op' if something is left, NULL if the amount reached 0
1493 */ 1546 */
1547bool
1548object::decrease (sint32 nr)
1549{
1550 if (!nr)
1551 return true;
1494 1552
1553 nr = min (nr, nrof);
1554
1555 nrof -= nr;
1556
1557 if (nrof)
1558 {
1559 adjust_weight (env, -weight * nr); // carrying == 0
1560
1561 if (object *pl = visible_to ())
1562 esrv_update_item (UPD_NROF, pl, this);
1563
1564 return true;
1565 }
1566 else
1567 {
1568 destroy (1);
1569 return false;
1570 }
1571}
1572
1573/*
1574 * split(ob,nr) splits up ob into two parts. The part which
1575 * is returned contains nr objects, and the remaining parts contains
1576 * the rest (or is removed and returned if that number is 0).
1577 * On failure, NULL is returned.
1578 */
1495object * 1579object *
1496decrease_ob_nr (object *op, uint32 i) 1580object::split (sint32 nr)
1497{ 1581{
1498 object *tmp; 1582 int have = number_of ();
1499 1583
1500 if (i == 0) /* objects with op->nrof require this check */ 1584 if (have < nr)
1501 return op; 1585 return 0;
1502 1586 else if (have == nr)
1503 if (i > op->nrof)
1504 i = op->nrof;
1505
1506 if (QUERY_FLAG (op, FLAG_REMOVED))
1507 op->nrof -= i;
1508 else if (op->env)
1509 { 1587 {
1510 /* is this object in the players inventory, or sub container
1511 * therein?
1512 */
1513 tmp = op->in_player ();
1514 /* nope. Is this a container the player has opened?
1515 * If so, set tmp to that player.
1516 * IMO, searching through all the players will mostly
1517 * likely be quicker than following op->env to the map,
1518 * and then searching the map for a player.
1519 */
1520 if (!tmp)
1521 for_all_players (pl)
1522 if (pl->ob->container == op->env)
1523 {
1524 tmp = pl->ob;
1525 break;
1526 }
1527
1528 if (i < op->nrof)
1529 {
1530 sub_weight (op->env, op->weight * i);
1531 op->nrof -= i;
1532 if (tmp)
1533 esrv_send_item (tmp, op);
1534 }
1535 else
1536 {
1537 op->remove (); 1588 remove ();
1538 op->nrof = 0; 1589 return this;
1539 if (tmp)
1540 esrv_del_item (tmp->contr, op->count);
1541 }
1542 } 1590 }
1543 else 1591 else
1544 { 1592 {
1545 object *above = op->above; 1593 decrease (nr);
1546 1594
1547 if (i < op->nrof) 1595 object *op = deep_clone ();
1548 op->nrof -= i; 1596 op->nrof = nr;
1549 else
1550 {
1551 op->remove ();
1552 op->nrof = 0;
1553 }
1554
1555 /* Since we just removed op, op->above is null */
1556 for (tmp = above; tmp; tmp = tmp->above)
1557 if (tmp->type == PLAYER)
1558 {
1559 if (op->nrof)
1560 esrv_send_item (tmp, op);
1561 else
1562 esrv_del_item (tmp->contr, op->count);
1563 }
1564 }
1565
1566 if (op->nrof)
1567 return op; 1597 return op;
1568 else
1569 {
1570 op->destroy ();
1571 return 0;
1572 }
1573}
1574
1575/*
1576 * add_weight(object, weight) adds the specified weight to an object,
1577 * and also updates how much the environment(s) is/are carrying.
1578 */
1579
1580void
1581add_weight (object *op, signed long weight)
1582{
1583 while (op != NULL)
1584 {
1585 if (op->type == CONTAINER)
1586 weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1587
1588 op->carrying += weight;
1589 op = op->env;
1590 } 1598 }
1591} 1599}
1592 1600
1593object * 1601object *
1594insert_ob_in_ob (object *op, object *where) 1602insert_ob_in_ob (object *op, object *where)
1599 LOG (llevError, "Trying to put object in NULL.\n%s\n", dump); 1607 LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
1600 free (dump); 1608 free (dump);
1601 return op; 1609 return op;
1602 } 1610 }
1603 1611
1604 if (where->head) 1612 if (where->head_ () != where)
1605 { 1613 {
1606 LOG (llevDebug, "Warning: Tried to insert object into wrong part of multipart object.\n"); 1614 LOG (llevError | logBacktrace, "Warning: Tried to insert object into wrong part of multipart object.\n");
1607 where = where->head; 1615 where = where->head;
1608 } 1616 }
1609 1617
1610 return where->insert (op); 1618 return where->insert (op);
1611} 1619}
1616 * inside the object environment. 1624 * inside the object environment.
1617 * 1625 *
1618 * The function returns now pointer to inserted item, and return value can 1626 * The function returns now pointer to inserted item, and return value can
1619 * be != op, if items are merged. -Tero 1627 * be != op, if items are merged. -Tero
1620 */ 1628 */
1621
1622object * 1629object *
1623object::insert (object *op) 1630object::insert (object *op)
1624{ 1631{
1625 object *tmp, *otmp;
1626
1627 if (!QUERY_FLAG (op, FLAG_REMOVED))
1628 op->remove ();
1629
1630 if (op->more) 1632 if (op->more)
1631 { 1633 {
1632 LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count); 1634 LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1633 return op; 1635 return op;
1634 } 1636 }
1635 1637
1636 CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL); 1638 op->remove ();
1637 CLEAR_FLAG (op, FLAG_REMOVED); 1639
1640 op->flag [FLAG_OBJ_ORIGINAL] = 0;
1641
1638 if (op->nrof) 1642 if (op->nrof)
1639 {
1640 for (tmp = inv; tmp != NULL; tmp = tmp->below) 1643 for (object *tmp = inv; tmp; tmp = tmp->below)
1641 if (object::can_merge (tmp, op)) 1644 if (object::can_merge (tmp, op))
1642 { 1645 {
1643 /* return the original object and remove inserted object 1646 /* return the original object and remove inserted object
1644 (client needs the original object) */ 1647 (client needs the original object) */
1645 tmp->nrof += op->nrof; 1648 tmp->nrof += op->nrof;
1646 /* Weight handling gets pretty funky. Since we are adding to 1649
1647 * tmp->nrof, we need to increase the weight. 1650 if (object *pl = tmp->visible_to ())
1648 */ 1651 esrv_update_item (UPD_NROF, pl, tmp);
1652
1649 add_weight (this, op->weight * op->nrof); 1653 adjust_weight (this, op->total_weight ());
1650 SET_FLAG (op, FLAG_REMOVED); 1654
1651 op->destroy (); /* free the inserted object */ 1655 op->destroy (1);
1652 op = tmp; 1656 op = tmp;
1653 op->remove (); /* and fix old object's links */ 1657 goto inserted;
1654 CLEAR_FLAG (op, FLAG_REMOVED);
1655 break;
1656 } 1658 }
1657 1659
1658 /* I assume combined objects have no inventory 1660 op->owner = 0; // it's his/hers now. period.
1659 * We add the weight - this object could have just been removed
1660 * (if it was possible to merge). calling remove_ob will subtract
1661 * the weight, so we need to add it in again, since we actually do
1662 * the linking below
1663 */
1664 add_weight (this, op->weight * op->nrof);
1665 }
1666 else
1667 add_weight (this, (op->weight + op->carrying));
1668
1669 otmp = this->in_player ();
1670 if (otmp && otmp->contr)
1671 if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1672 otmp->update_stats ();
1673
1674 op->map = 0; 1661 op->map = 0;
1675 op->env = this; 1662 op->x = 0;
1663 op->y = 0;
1664
1676 op->above = 0; 1665 op->above = 0;
1677 op->below = 0; 1666 op->below = inv;
1678 op->x = 0, op->y = 0; 1667 op->env = this;
1679 1668
1669 if (inv)
1670 inv->above = op;
1671
1672 inv = op;
1673
1674 op->flag [FLAG_REMOVED] = 0;
1675
1676 if (object *pl = op->visible_to ())
1677 esrv_send_item (pl, op);
1678
1679 adjust_weight (this, op->total_weight ());
1680
1681inserted:
1680 /* reset the light list and los of the players on the map */ 1682 /* reset the light list and los of the players on the map */
1681 if ((op->glow_radius != 0) && map) 1683 if (op->glow_radius && map && map->darkness)
1682 {
1683#ifdef DEBUG_LIGHTS
1684 LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1685#endif /* DEBUG_LIGHTS */
1686 if (map->darkness)
1687 update_all_los (map, x, y); 1684 update_all_los (map, x, y);
1688 }
1689 1685
1690 /* Client has no idea of ordering so lets not bother ordering it here. 1686 // if this is a player's inventory, update stats
1691 * It sure simplifies this function... 1687 if (type == PLAYER && !flag [FLAG_NO_FIX_PLAYER])
1692 */ 1688 update_stats ();
1693 if (!inv)
1694 inv = op;
1695 else
1696 {
1697 op->below = inv;
1698 op->below->above = op;
1699 inv = op;
1700 }
1701 1689
1702 INVOKE_OBJECT (INSERT, this); 1690 INVOKE_OBJECT (INSERT, this);
1703 1691
1704 return op; 1692 return op;
1705} 1693}
1758 1746
1759 /* The objects have to be checked from top to bottom. 1747 /* The objects have to be checked from top to bottom.
1760 * Hence, we first go to the top: 1748 * Hence, we first go to the top:
1761 */ 1749 */
1762 1750
1763 for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp && tmp->above; tmp = tmp->above) 1751 for (tmp = op->ms ().bot; tmp && tmp->above; tmp = tmp->above)
1764 { 1752 {
1765 /* Trim the search when we find the first other spell effect 1753 /* Trim the search when we find the first other spell effect
1766 * this helps performance so that if a space has 50 spell objects, 1754 * this helps performance so that if a space has 50 spell objects,
1767 * we don't need to check all of them. 1755 * we don't need to check all of them.
1768 */ 1756 */
1786 if ((!op->move_type && tmp->move_slow & MOVE_WALK) || 1774 if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
1787 ((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0)) 1775 ((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
1788 { 1776 {
1789 1777
1790 float 1778 float
1791 diff = tmp->move_slow_penalty * FABS (op->speed); 1779 diff = tmp->move_slow_penalty * fabs (op->speed);
1792 1780
1793 if (op->type == PLAYER) 1781 if (op->type == PLAYER)
1794 if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) || 1782 if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
1795 (QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN))) 1783 (QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
1796 diff /= 4.0; 1784 diff /= 4.0;
1826 * The first matching object is returned, or NULL if none. 1814 * The first matching object is returned, or NULL if none.
1827 */ 1815 */
1828object * 1816object *
1829present_arch (const archetype *at, maptile *m, int x, int y) 1817present_arch (const archetype *at, maptile *m, int x, int y)
1830{ 1818{
1831 if (m == NULL || out_of_map (m, x, y)) 1819 if (!m || out_of_map (m, x, y))
1832 { 1820 {
1833 LOG (llevError, "Present_arch called outside map.\n"); 1821 LOG (llevError, "Present_arch called outside map.\n");
1834 return NULL; 1822 return NULL;
1835 } 1823 }
1836 1824
1837 for (object *tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above) 1825 for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
1838 if (tmp->arch == at) 1826 if (tmp->arch->archname == at->archname)
1839 return tmp; 1827 return tmp;
1840 1828
1841 return NULL; 1829 return NULL;
1842} 1830}
1843 1831
1853 { 1841 {
1854 LOG (llevError, "Present called outside map.\n"); 1842 LOG (llevError, "Present called outside map.\n");
1855 return NULL; 1843 return NULL;
1856 } 1844 }
1857 1845
1858 for (object *tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above) 1846 for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
1859 if (tmp->type == type) 1847 if (tmp->type == type)
1860 return tmp; 1848 return tmp;
1861 1849
1862 return NULL; 1850 return NULL;
1863} 1851}
1907 * The first matching object is returned, or NULL if none. 1895 * The first matching object is returned, or NULL if none.
1908 */ 1896 */
1909object * 1897object *
1910present_arch_in_ob (const archetype *at, const object *op) 1898present_arch_in_ob (const archetype *at, const object *op)
1911{ 1899{
1912 for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below) 1900 for (object *tmp = op->inv; tmp; tmp = tmp->below)
1913 if (tmp->arch == at) 1901 if (tmp->arch->archname == at->archname)
1914 return tmp; 1902 return tmp;
1915 1903
1916 return NULL; 1904 return NULL;
1917} 1905}
1918 1906
1920 * activate recursively a flag on an object inventory 1908 * activate recursively a flag on an object inventory
1921 */ 1909 */
1922void 1910void
1923flag_inv (object *op, int flag) 1911flag_inv (object *op, int flag)
1924{ 1912{
1925 if (op->inv)
1926 for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below) 1913 for (object *tmp = op->inv; tmp; tmp = tmp->below)
1927 { 1914 {
1928 SET_FLAG (tmp, flag); 1915 SET_FLAG (tmp, flag);
1929 flag_inv (tmp, flag); 1916 flag_inv (tmp, flag);
1930 } 1917 }
1931} 1918}
1932 1919
1933/* 1920/*
1934 * deactivate recursively a flag on an object inventory 1921 * deactivate recursively a flag on an object inventory
1935 */ 1922 */
1936void 1923void
1937unflag_inv (object *op, int flag) 1924unflag_inv (object *op, int flag)
1938{ 1925{
1939 if (op->inv)
1940 for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below) 1926 for (object *tmp = op->inv; tmp; tmp = tmp->below)
1941 { 1927 {
1942 CLEAR_FLAG (tmp, flag); 1928 CLEAR_FLAG (tmp, flag);
1943 unflag_inv (tmp, flag); 1929 unflag_inv (tmp, flag);
1944 } 1930 }
1945}
1946
1947/*
1948 * set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
1949 * all it's inventory (recursively).
1950 * If checksums are used, a player will get set_cheat called for
1951 * him/her-self and all object carried by a call to this function.
1952 */
1953void
1954set_cheat (object *op)
1955{
1956 SET_FLAG (op, FLAG_WAS_WIZ);
1957 flag_inv (op, FLAG_WAS_WIZ);
1958} 1931}
1959 1932
1960/* 1933/*
1961 * find_free_spot(object, map, x, y, start, stop) will search for 1934 * find_free_spot(object, map, x, y, start, stop) will search for
1962 * a spot at the given map and coordinates which will be able to contain 1935 * a spot at the given map and coordinates which will be able to contain
1964 * to search (see the freearr_x/y[] definition). 1937 * to search (see the freearr_x/y[] definition).
1965 * It returns a random choice among the alternatives found. 1938 * It returns a random choice among the alternatives found.
1966 * start and stop are where to start relative to the free_arr array (1,9 1939 * start and stop are where to start relative to the free_arr array (1,9
1967 * does all 4 immediate directions). This returns the index into the 1940 * does all 4 immediate directions). This returns the index into the
1968 * array of the free spot, -1 if no spot available (dir 0 = x,y) 1941 * array of the free spot, -1 if no spot available (dir 0 = x,y)
1969 * Note - this only checks to see if there is space for the head of the
1970 * object - if it is a multispace object, this should be called for all
1971 * pieces.
1972 * Note2: This function does correctly handle tiled maps, but does not 1942 * Note: This function does correctly handle tiled maps, but does not
1973 * inform the caller. However, insert_ob_in_map will update as 1943 * inform the caller. However, insert_ob_in_map will update as
1974 * necessary, so the caller shouldn't need to do any special work. 1944 * necessary, so the caller shouldn't need to do any special work.
1975 * Note - updated to take an object instead of archetype - this is necessary 1945 * Note - updated to take an object instead of archetype - this is necessary
1976 * because arch_blocked (now ob_blocked) needs to know the movement type 1946 * because arch_blocked (now ob_blocked) needs to know the movement type
1977 * to know if the space in question will block the object. We can't use 1947 * to know if the space in question will block the object. We can't use
1979 * customized, changed states, etc. 1949 * customized, changed states, etc.
1980 */ 1950 */
1981int 1951int
1982find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop) 1952find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
1983{ 1953{
1954 int altern[SIZEOFFREE];
1984 int index = 0, flag; 1955 int index = 0, flag;
1985 int altern[SIZEOFFREE];
1986 1956
1987 for (int i = start; i < stop; i++) 1957 for (int i = start; i < stop; i++)
1988 { 1958 {
1989 flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]); 1959 mapxy pos (m, x, y); pos.move (i);
1990 if (!flag) 1960
1961 if (!pos.normalise ())
1962 continue;
1963
1964 mapspace &ms = *pos;
1965
1966 if (ms.flags () & P_IS_ALIVE)
1967 continue;
1968
1969 /* However, often
1970 * ob doesn't have any move type (when used to place exits)
1971 * so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
1972 */
1973 if (ob && ob->move_type == 0 && ms.move_block != MOVE_ALL)
1974 {
1991 altern [index++] = i; 1975 altern [index++] = i;
1976 continue;
1977 }
1992 1978
1993 /* Basically, if we find a wall on a space, we cut down the search size. 1979 /* Basically, if we find a wall on a space, we cut down the search size.
1994 * In this way, we won't return spaces that are on another side of a wall. 1980 * In this way, we won't return spaces that are on another side of a wall.
1995 * This mostly work, but it cuts down the search size in all directions - 1981 * This mostly work, but it cuts down the search size in all directions -
1996 * if the space being examined only has a wall to the north and empty 1982 * if the space being examined only has a wall to the north and empty
1997 * spaces in all the other directions, this will reduce the search space 1983 * spaces in all the other directions, this will reduce the search space
1998 * to only the spaces immediately surrounding the target area, and 1984 * to only the spaces immediately surrounding the target area, and
1999 * won't look 2 spaces south of the target space. 1985 * won't look 2 spaces south of the target space.
2000 */ 1986 */
2001 else if ((flag & P_NO_PASS) && maxfree[i] < stop) 1987 if (ms.move_block == MOVE_ALL && maxfree[i] < stop)
1988 {
2002 stop = maxfree[i]; 1989 stop = maxfree[i];
1990 continue;
1991 }
1992
1993 /* Note it is intentional that we check ob - the movement type of the
1994 * head of the object should correspond for the entire object.
1995 */
1996 if (OB_TYPE_MOVE_BLOCK (ob, ms.move_block))
1997 continue;
1998
1999 if (ob->blocked (m, pos.x, pos.y))
2000 continue;
2001
2002 altern [index++] = i;
2003 } 2003 }
2004 2004
2005 if (!index) 2005 if (!index)
2006 return -1; 2006 return -1;
2007 2007
2008 return altern[RANDOM () % index]; 2008 return altern [rndm (index)];
2009} 2009}
2010 2010
2011/* 2011/*
2012 * find_first_free_spot(archetype, maptile, x, y) works like 2012 * find_first_free_spot(archetype, maptile, x, y) works like
2013 * find_free_spot(), but it will search max number of squares. 2013 * find_free_spot(), but it will search max number of squares.
2016 */ 2016 */
2017int 2017int
2018find_first_free_spot (const object *ob, maptile *m, int x, int y) 2018find_first_free_spot (const object *ob, maptile *m, int x, int y)
2019{ 2019{
2020 for (int i = 0; i < SIZEOFFREE; i++) 2020 for (int i = 0; i < SIZEOFFREE; i++)
2021 if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i])) 2021 if (!ob->blocked (m, x + freearr_x[i], y + freearr_y[i]))
2022 return i; 2022 return i;
2023 2023
2024 return -1; 2024 return -1;
2025} 2025}
2026 2026
2034{ 2034{
2035 arr += begin; 2035 arr += begin;
2036 end -= begin; 2036 end -= begin;
2037 2037
2038 while (--end) 2038 while (--end)
2039 swap (arr [end], arr [RANDOM () % (end + 1)]); 2039 swap (arr [end], arr [rndm (end + 1)]);
2040} 2040}
2041 2041
2042/* new function to make monster searching more efficient, and effective! 2042/* new function to make monster searching more efficient, and effective!
2043 * This basically returns a randomized array (in the passed pointer) of 2043 * This basically returns a randomized array (in the passed pointer) of
2044 * the spaces to find monsters. In this way, it won't always look for 2044 * the spaces to find monsters. In this way, it won't always look for
2080 object *tmp; 2080 object *tmp;
2081 maptile *mp; 2081 maptile *mp;
2082 2082
2083 MoveType blocked, move_type; 2083 MoveType blocked, move_type;
2084 2084
2085 if (exclude && exclude->head) 2085 if (exclude && exclude->head_ () != exclude)
2086 { 2086 {
2087 exclude = exclude->head; 2087 exclude = exclude->head;
2088 move_type = exclude->move_type; 2088 move_type = exclude->move_type;
2089 } 2089 }
2090 else 2090 else
2113 max = maxfree[i]; 2113 max = maxfree[i];
2114 else if (mflags & P_IS_ALIVE) 2114 else if (mflags & P_IS_ALIVE)
2115 { 2115 {
2116 for (tmp = ms.bot; tmp; tmp = tmp->above) 2116 for (tmp = ms.bot; tmp; tmp = tmp->above)
2117 if ((tmp->flag [FLAG_MONSTER] || tmp->type == PLAYER) 2117 if ((tmp->flag [FLAG_MONSTER] || tmp->type == PLAYER)
2118 && (tmp != exclude || (tmp->head && tmp->head != exclude))) 2118 && (tmp != exclude || (tmp->head_ () != tmp && tmp->head_ () != exclude)))
2119 break; 2119 break;
2120 2120
2121 if (tmp) 2121 if (tmp)
2122 return freedir[i]; 2122 return freedir[i];
2123 } 2123 }
2178 2178
2179 return 3; 2179 return 3;
2180} 2180}
2181 2181
2182/* 2182/*
2183 * absdir(int): Returns a number between 1 and 8, which represent
2184 * the "absolute" direction of a number (it actually takes care of
2185 * "overflow" in previous calculations of a direction).
2186 */
2187
2188int
2189absdir (int d)
2190{
2191 while (d < 1)
2192 d += 8;
2193
2194 while (d > 8)
2195 d -= 8;
2196
2197 return d;
2198}
2199
2200/*
2201 * dirdiff(dir1, dir2) returns how many 45-degrees differences there is 2183 * dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2202 * between two directions (which are expected to be absolute (see absdir()) 2184 * between two directions (which are expected to be absolute (see absdir())
2203 */ 2185 */
2204
2205int 2186int
2206dirdiff (int dir1, int dir2) 2187dirdiff (int dir1, int dir2)
2207{ 2188{
2208 int d; 2189 int d;
2209 2190
2322 * Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause 2303 * Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause
2323 * core dumps if they do. 2304 * core dumps if they do.
2324 * 2305 *
2325 * Add a check so we can't pick up invisible objects (0.93.8) 2306 * Add a check so we can't pick up invisible objects (0.93.8)
2326 */ 2307 */
2327
2328int 2308int
2329can_pick (const object *who, const object *item) 2309can_pick (const object *who, const object *item)
2330{ 2310{
2331 return /*QUERY_FLAG(who,FLAG_WIZ)|| */ 2311 return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2332 (item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) && 2312 (item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2335 2315
2336/* 2316/*
2337 * create clone from object to another 2317 * create clone from object to another
2338 */ 2318 */
2339object * 2319object *
2340object_create_clone (object *asrc) 2320object::deep_clone ()
2341{ 2321{
2342 object *dst = 0, *tmp, *src, *part, *prev, *item; 2322 assert (("deep_clone called on non-head object", is_head ()));
2343 2323
2344 if (!asrc) 2324 object *dst = clone ();
2345 return 0;
2346 2325
2347 src = asrc; 2326 object *prev = dst;
2348 if (src->head)
2349 src = src->head;
2350
2351 prev = 0;
2352 for (part = src; part; part = part->more) 2327 for (object *part = this->more; part; part = part->more)
2353 { 2328 {
2354 tmp = part->clone (); 2329 object *tmp = part->clone ();
2355 tmp->x -= src->x;
2356 tmp->y -= src->y;
2357
2358 if (!part->head)
2359 {
2360 dst = tmp;
2361 tmp->head = 0;
2362 }
2363 else
2364 tmp->head = dst; 2330 tmp->head = dst;
2365
2366 tmp->more = 0;
2367
2368 if (prev)
2369 prev->more = tmp; 2331 prev->more = tmp;
2370
2371 prev = tmp; 2332 prev = tmp;
2372 } 2333 }
2373 2334
2374 for (item = src->inv; item; item = item->below) 2335 for (object *item = inv; item; item = item->below)
2375 insert_ob_in_ob (object_create_clone (item), dst); 2336 insert_ob_in_ob (item->deep_clone (), dst);
2376 2337
2377 return dst; 2338 return dst;
2378}
2379
2380/* GROS - Creates an object using a string representing its content. */
2381/* Basically, we save the content of the string to a temp file, then call */
2382/* load_object on it. I admit it is a highly inefficient way to make things, */
2383/* but it was simple to make and allows reusing the load_object function. */
2384/* Remember not to use load_object_str in a time-critical situation. */
2385/* Also remember that multiparts objects are not supported for now. */
2386object *
2387load_object_str (const char *obstr)
2388{
2389 object *op;
2390 char filename[MAX_BUF];
2391
2392 sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
2393
2394 FILE *tempfile = fopen (filename, "w");
2395
2396 if (tempfile == NULL)
2397 {
2398 LOG (llevError, "Error - Unable to access load object temp file\n");
2399 return NULL;
2400 }
2401
2402 fprintf (tempfile, obstr);
2403 fclose (tempfile);
2404
2405 op = object::create ();
2406
2407 object_thawer thawer (filename);
2408
2409 if (thawer)
2410 load_object (thawer, op, 0);
2411
2412 LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2413 CLEAR_FLAG (op, FLAG_REMOVED);
2414
2415 return op;
2416} 2339}
2417 2340
2418/* This returns the first object in who's inventory that 2341/* This returns the first object in who's inventory that
2419 * has the same type and subtype match. 2342 * has the same type and subtype match.
2420 * returns NULL if no match. 2343 * returns NULL if no match.
2427 return tmp; 2350 return tmp;
2428 2351
2429 return 0; 2352 return 0;
2430} 2353}
2431 2354
2432/* If ob has a field named key, return the link from the list, 2355const shstr &
2433 * otherwise return NULL. 2356object::kv_get (const shstr &key) const
2434 *
2435 * key must be a passed in shared string - otherwise, this won't
2436 * do the desired thing.
2437 */
2438key_value *
2439get_ob_key_link (const object *ob, const char *key)
2440{ 2357{
2441 for (key_value *link = ob->key_values; link; link = link->next) 2358 for (key_value *kv = key_values; kv; kv = kv->next)
2442 if (link->key == key) 2359 if (kv->key == key)
2443 return link;
2444
2445 return 0;
2446}
2447
2448/*
2449 * Returns the value of op has an extra_field for key, or NULL.
2450 *
2451 * The argument doesn't need to be a shared string.
2452 *
2453 * The returned string is shared.
2454 */
2455const char *
2456get_ob_key_value (const object *op, const char *const key)
2457{
2458 key_value *link;
2459 shstr_cmp canonical_key (key);
2460
2461 if (!canonical_key)
2462 {
2463 /* 1. There being a field named key on any object
2464 * implies there'd be a shared string to find.
2465 * 2. Since there isn't, no object has this field.
2466 * 3. Therefore, *this* object doesn't have this field.
2467 */
2468 return 0;
2469 }
2470
2471 /* This is copied from get_ob_key_link() above -
2472 * only 4 lines, and saves the function call overhead.
2473 */
2474 for (link = op->key_values; link; link = link->next)
2475 if (link->key == canonical_key)
2476 return link->value; 2360 return kv->value;
2477 2361
2478 return 0; 2362 return shstr_null;
2479} 2363}
2480 2364
2481 2365void
2482/* 2366object::kv_set (const shstr &key, const shstr &value)
2483 * Updates the canonical_key in op to value.
2484 *
2485 * canonical_key is a shared string (value doesn't have to be).
2486 *
2487 * Unless add_key is TRUE, it won't add fields, only change the value of existing
2488 * keys.
2489 *
2490 * Returns TRUE on success.
2491 */
2492int
2493set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
2494{ 2367{
2495 key_value *field = NULL, *last = NULL; 2368 for (key_value *kv = key_values; kv; kv = kv->next)
2496 2369 if (kv->key == key)
2497 for (field = op->key_values; field != NULL; field = field->next)
2498 {
2499 if (field->key != canonical_key)
2500 { 2370 {
2501 last = field; 2371 kv->value = value;
2502 continue; 2372 return;
2503 } 2373 }
2504 2374
2505 if (value) 2375 key_value *kv = new key_value;
2506 field->value = value; 2376
2507 else 2377 kv->next = key_values;
2378 kv->key = key;
2379 kv->value = value;
2380
2381 key_values = kv;
2382}
2383
2384void
2385object::kv_del (const shstr &key)
2386{
2387 for (key_value **kvp = &key_values; *kvp; kvp = &(*kvp)->next)
2388 if ((*kvp)->key == key)
2508 { 2389 {
2509 /* Basically, if the archetype has this key set, 2390 key_value *kv = *kvp;
2510 * we need to store the null value so when we save 2391 *kvp = (*kvp)->next;
2511 * it, we save the empty value so that when we load, 2392 delete kv;
2512 * we get this value back again. 2393 return;
2513 */
2514 if (get_ob_key_link (&op->arch->clone, canonical_key))
2515 field->value = 0;
2516 else
2517 {
2518 if (last)
2519 last->next = field->next;
2520 else
2521 op->key_values = field->next;
2522
2523 delete field;
2524 }
2525 } 2394 }
2526 return TRUE;
2527 }
2528 /* IF we get here, key doesn't exist */
2529
2530 /* No field, we'll have to add it. */
2531
2532 if (!add_key)
2533 return FALSE;
2534
2535 /* There isn't any good reason to store a null
2536 * value in the key/value list. If the archetype has
2537 * this key, then we should also have it, so shouldn't
2538 * be here. If user wants to store empty strings,
2539 * should pass in ""
2540 */
2541 if (value == NULL)
2542 return TRUE;
2543
2544 field = new key_value;
2545
2546 field->key = canonical_key;
2547 field->value = value;
2548 /* Usual prepend-addition. */
2549 field->next = op->key_values;
2550 op->key_values = field;
2551
2552 return TRUE;
2553}
2554
2555/*
2556 * Updates the key in op to value.
2557 *
2558 * If add_key is FALSE, this will only update existing keys,
2559 * and not add new ones.
2560 * In general, should be little reason FALSE is ever passed in for add_key
2561 *
2562 * Returns TRUE on success.
2563 */
2564int
2565set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2566{
2567 shstr key_ (key);
2568
2569 return set_ob_key_value_s (op, key_, value, add_key);
2570} 2395}
2571 2396
2572object::depth_iterator::depth_iterator (object *container) 2397object::depth_iterator::depth_iterator (object *container)
2573: iterator_base (container) 2398: iterator_base (container)
2574{ 2399{
2588 } 2413 }
2589 else 2414 else
2590 item = item->env; 2415 item = item->env;
2591} 2416}
2592 2417
2418const char *
2419object::flag_desc (char *desc, int len) const
2420{
2421 char *p = desc;
2422 bool first = true;
2423
2424 *p = 0;
2425
2426 for (int i = 0; i < NUM_FLAGS; i++)
2427 {
2428 if (len <= 10) // magic constant!
2429 {
2430 snprintf (p, len, ",...");
2431 break;
2432 }
2433
2434 if (flag [i])
2435 {
2436 int cnt = snprintf (p, len, "%s%d", first ? "" : ",", i);
2437 len -= cnt;
2438 p += cnt;
2439 first = false;
2440 }
2441 }
2442
2443 return desc;
2444}
2445
2593// return a suitable string describing an objetc in enough detail to find it 2446// return a suitable string describing an object in enough detail to find it
2594const char * 2447const char *
2595object::debug_desc (char *info) const 2448object::debug_desc (char *info) const
2596{ 2449{
2450 char flagdesc[512];
2597 char info2[256 * 3]; 2451 char info2[256 * 4];
2598 char *p = info; 2452 char *p = info;
2599 2453
2600 p += snprintf (p, 256, "%d=\"%s%s%s\"", 2454 p += snprintf (p, 512, "{cnt:%d,uuid:%s,name:\"%s\"%s%s,flags:[%s],type:%d}",
2601 count, 2455 count,
2456 uuid.c_str (),
2602 &name, 2457 &name,
2603 title ? " " : "", 2458 title ? "\",title:\"" : "",
2604 title ? (const char *)title : ""); 2459 title ? (const char *)title : "",
2460 flag_desc (flagdesc, 512), type);
2605 2461
2606 if (env) 2462 if (!flag[FLAG_REMOVED] && env)
2607 p += snprintf (p, 256, "(in %s)", env->debug_desc (info2)); 2463 p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
2608 2464
2609 if (map) 2465 if (map)
2610 p += snprintf (p, 256, "(on %s@%d+%d)", map->path, x, y); 2466 p += snprintf (p, 256, "(on %s@%d+%d)", &map->path, x, y);
2611 2467
2612 return info; 2468 return info;
2613} 2469}
2614 2470
2615const char * 2471const char *
2616object::debug_desc () const 2472object::debug_desc () const
2617{ 2473{
2618 static char info[256 * 3]; 2474 static char info[3][256 * 4];
2475 static int info_idx;
2476
2619 return debug_desc (info); 2477 return debug_desc (info [++info_idx % 3]);
2620} 2478}
2621 2479
2480struct region *
2481object::region () const
2482{
2483 return map ? map->region (x, y)
2484 : region::default_region ();
2485}
2486
2487const materialtype_t *
2488object::dominant_material () const
2489{
2490 if (materialtype_t *mt = name_to_material (materialname))
2491 return mt;
2492
2493 return name_to_material (shstr_unknown);
2494}
2495
2496void
2497object::open_container (object *new_container)
2498{
2499 if (container == new_container)
2500 return;
2501
2502 object *old_container = container;
2503
2504 if (old_container)
2505 {
2506 if (INVOKE_OBJECT (CLOSE, old_container, ARG_OBJECT (this)))
2507 return;
2508
2509#if 0
2510 // remove the "Close old_container" object.
2511 if (object *closer = old_container->inv)
2512 if (closer->type == CLOSE_CON)
2513 closer->destroy ();
2514#endif
2515
2516 // make sure the container is available
2517 esrv_send_item (this, old_container);
2518
2519 old_container->flag [FLAG_APPLIED] = false;
2520 container = 0;
2521
2522 // client needs item update to make it work, client bug requires this to be separate
2523 esrv_update_item (UPD_FLAGS, this, old_container);
2524
2525 new_draw_info_format (NDI_UNIQUE, 0, this, "You close %s.", query_name (old_container));
2526 play_sound (sound_find ("chest_close"));
2527 }
2528
2529 if (new_container)
2530 {
2531 if (INVOKE_OBJECT (OPEN, new_container, ARG_OBJECT (this)))
2532 return;
2533
2534 // TODO: this does not seem to serve any purpose anymore?
2535#if 0
2536 // insert the "Close Container" object.
2537 if (archetype *closer = new_container->other_arch)
2538 {
2539 object *closer = arch_to_object (new_container->other_arch);
2540 closer->flag [FLAG_NO_MAP_SAVE] = 1;
2541 new_container->insert (closer);
2542 }
2543#endif
2544
2545 new_draw_info_format (NDI_UNIQUE, 0, this, "You open %s.", query_name (new_container));
2546
2547 // make sure the container is available, client bug requires this to be separate
2548 esrv_send_item (this, new_container);
2549
2550 new_container->flag [FLAG_APPLIED] = true;
2551 container = new_container;
2552
2553 // client needs flag change
2554 esrv_update_item (UPD_FLAGS, this, new_container);
2555 esrv_send_inventory (this, new_container);
2556 play_sound (sound_find ("chest_open"));
2557 }
2558// else if (!old_container->env && contr && contr->ns)
2559// contr->ns->floorbox_reset ();
2560}
2561
2562object *
2563object::force_find (const shstr name)
2564{
2565 /* cycle through his inventory to look for the MARK we want to
2566 * place
2567 */
2568 for (object *tmp = inv; tmp; tmp = tmp->below)
2569 if (tmp->type == FORCE && tmp->slaying == name)
2570 return splay (tmp);
2571
2572 return 0;
2573}
2574
2575void
2576object::force_add (const shstr name, int duration)
2577{
2578 if (object *force = force_find (name))
2579 force->destroy ();
2580
2581 object *force = get_archetype (FORCE_NAME);
2582
2583 force->slaying = name;
2584 force->stats.food = 1;
2585 force->speed_left = -1.f;
2586
2587 force->set_speed (duration ? 1.f / duration : 0.f);
2588 force->flag [FLAG_IS_USED_UP] = true;
2589 force->flag [FLAG_APPLIED] = true;
2590
2591 insert (force);
2592}
2593
2594void
2595object::play_sound (faceidx sound)
2596{
2597 if (!sound)
2598 return;
2599
2600 if (flag [FLAG_REMOVED])
2601 return;
2602
2603 if (env)
2604 {
2605 if (object *pl = in_player ())
2606 pl->contr->play_sound (sound);
2607 }
2608 else
2609 map->play_sound (sound, x, y);
2610}
2611

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