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Comparing deliantra/server/common/map.C (file contents):
Revision 1.99 by root, Mon Apr 16 06:23:39 2007 UTC vs.
Revision 1.197 by root, Thu Apr 29 07:32:34 2010 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 (C) 2005, 2006, 2007 Marc Lehmann & Crossfire+ Development Team 4 * Copyright (©) 2005,2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5 * Copyright (C) 2001-2003 Mark Wedel & Crossfire Development Team 5 * Copyright (©) 2001-2003 Mark Wedel & Crossfire Development Team
6 * Copyright (C) 1992 Frank Tore Johansen 6 * Copyright (©) 1992 Frank Tore Johansen
7 * 7 *
8 * This program is free software; you can redistribute it and/or modify 8 * Deliantra is free software: you can redistribute it and/or modify it under
9 * it under the terms of the GNU General Public License as published by 9 * the terms of the Affero GNU General Public License as published by the
10 * the Free Software Foundation; either version 2 of the License, or 10 * Free Software Foundation, either version 3 of the License, or (at your
11 * (at your option) any later version. 11 * option) any later version.
12 * 12 *
13 * 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,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details. 16 * GNU General Public License for more details.
17 * 17 *
18 * You should have received a copy of the GNU General Public License 18 * You should have received a copy of the Affero GNU General Public License
19 * along with this program; if not, write to the Free Software 19 * and the GNU General Public License along with this program. If not, see
20 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 20 * <http://www.gnu.org/licenses/>.
21 * 21 *
22 * The authors can be reached via e-mail at <crossfire@schmorp.de> 22 * The authors can be reached via e-mail to <support@deliantra.net>
23 */ 23 */
24 24
25#include <unistd.h> 25#include <unistd.h>
26 26
27#include "global.h" 27#include "global.h"
28#include "funcpoint.h"
29
30#include "loader.h"
31
32#include "path.h" 28#include "path.h"
33 29
34/* 30//+GPL
35 * This makes a path absolute outside the world of Crossfire.
36 * In other words, it prepends LIBDIR/MAPDIR/ to the given path
37 * and returns the pointer to a static array containing the result.
38 * it really should be called create_mapname
39 */
40const char *
41create_pathname (const char *name)
42{
43 static char buf[8192];
44 snprintf (buf, sizeof (buf), "%s/%s/%s", settings.datadir, settings.mapdir, name);
45 return buf;
46}
47 31
48/* 32sint8 maptile::outdoor_darkness;
49 * This function checks if a file with the given path exists.
50 * -1 is returned if it fails, otherwise the mode of the file
51 * is returned.
52 * It tries out all the compression suffixes listed in the uncomp[] array.
53 *
54 * If prepend_dir is set, then we call create_pathname (which prepends
55 * libdir & mapdir). Otherwise, we assume the name given is fully
56 * complete.
57 * Only the editor actually cares about the writablity of this -
58 * the rest of the code only cares that the file is readable.
59 * when the editor goes away, the call to stat should probably be
60 * replaced by an access instead (similar to the windows one, but
61 * that seems to be missing the prepend_dir processing
62 */
63int
64check_path (const char *name, int prepend_dir)
65{
66 char buf[MAX_BUF];
67
68 char *endbuf;
69 struct stat statbuf;
70 int mode = 0;
71
72 if (prepend_dir)
73 assign (buf, create_pathname (name));
74 else
75 assign (buf, name);
76
77 /* old method (strchr(buf, '\0')) seemd very odd to me -
78 * this method should be equivalant and is clearer.
79 * Can not use strcat because we need to cycle through
80 * all the names.
81 */
82 endbuf = buf + strlen (buf);
83
84 if (stat (buf, &statbuf))
85 return -1;
86 if (!S_ISREG (statbuf.st_mode))
87 return (-1);
88
89 if (((statbuf.st_mode & S_IRGRP) && getegid () == statbuf.st_gid) ||
90 ((statbuf.st_mode & S_IRUSR) && geteuid () == statbuf.st_uid) || (statbuf.st_mode & S_IROTH))
91 mode |= 4;
92
93 if ((statbuf.st_mode & S_IWGRP && getegid () == statbuf.st_gid) ||
94 (statbuf.st_mode & S_IWUSR && geteuid () == statbuf.st_uid) || (statbuf.st_mode & S_IWOTH))
95 mode |= 2;
96
97 return (mode);
98}
99 33
100/* This rolls up wall, blocks_magic, blocks_view, etc, all into 34/* This rolls up wall, blocks_magic, blocks_view, etc, all into
101 * one function that just returns a P_.. value (see map.h) 35 * one function that just returns a P_.. value (see map.h)
102 * it will also do map translation for tiled maps, returning 36 * it will also do map translation for tiled maps, returning
103 * new values into newmap, nx, and ny. Any and all of those 37 * new values into newmap, nx, and ny. Any and all of those
… …
138 * by the caller. 72 * by the caller.
139 */ 73 */
140int 74int
141blocked_link (object *ob, maptile *m, int sx, int sy) 75blocked_link (object *ob, maptile *m, int sx, int sy)
142{ 76{
143 object *tmp;
144 int mflags, blocked;
145
146 /* Make sure the coordinates are valid - they should be, as caller should 77 /* Make sure the coordinates are valid - they should be, as caller should
147 * have already checked this. 78 * have already checked this.
148 */ 79 */
149 if (OUT_OF_REAL_MAP (m, sx, sy)) 80 if (OUT_OF_REAL_MAP (m, sx, sy))
150 { 81 {
151 LOG (llevError, "blocked_link: Passed map, x, y coordinates outside of map\n"); 82 LOG (llevError | logBacktrace, "blocked_link: Passed map, x, y coordinates outside of map\n");
152 return 1; 83 return 1;
153 } 84 }
154 85
155 /* Save some cycles - instead of calling get_map_flags(), just get the value 86 mapspace &ms = m->at (sx, sy);
156 * directly.
157 */
158 mflags = m->at (sx, sy).flags ();
159 87
160 blocked = GET_MAP_MOVE_BLOCK (m, sx, sy); 88 int mflags = ms.flags ();
89 int blocked = ms.move_block;
161 90
162 /* If space is currently not blocked by anything, no need to 91 /* If space is currently not blocked by anything, no need to
163 * go further. Not true for players - all sorts of special 92 * go further. Not true for players - all sorts of special
164 * things we need to do for players. 93 * things we need to do for players.
165 */ 94 */
166 if (ob->type != PLAYER && !(mflags & P_IS_ALIVE) && (blocked == 0)) 95 if (ob->type != PLAYER && !(mflags & P_IS_ALIVE) && blocked == 0)
167 return 0; 96 return 0;
168 97
169 /* if there isn't anytyhing alive on this space, and this space isn't 98 /* if there isn't anything alive on this space, and this space isn't
170 * otherwise blocked, we can return now. Only if there is a living 99 * otherwise blocked, we can return now. Only if there is a living
171 * creature do we need to investigate if it is part of this creature 100 * creature do we need to investigate if it is part of this creature
172 * or another. Likewise, only if something is blocking us do we 101 * or another. Likewise, only if something is blocking us do we
173 * need to investigate if there is a special circumstance that would 102 * need to investigate if there is a special circumstance that would
174 * let the player through (inventory checkers for example) 103 * let the player through (inventory checkers for example)
175 */ 104 */
176 if (!(mflags & P_IS_ALIVE) && !OB_TYPE_MOVE_BLOCK (ob, blocked)) 105 if (!(mflags & P_IS_ALIVE) && !OB_TYPE_MOVE_BLOCK (ob, blocked))
177 return 0; 106 return 0;
178 107
179 if (ob->head != NULL)
180 ob = ob->head; 108 ob = ob->head_ ();
181 109
182 /* We basically go through the stack of objects, and if there is 110 /* We basically go through the stack of objects, and if there is
183 * some other object that has NO_PASS or FLAG_ALIVE set, return 111 * some other object that has NO_PASS or FLAG_ALIVE set, return
184 * true. If we get through the entire stack, that must mean 112 * true. If we get through the entire stack, that must mean
185 * ob is blocking it, so return 0. 113 * ob is blocking it, so return 0.
186 */ 114 */
187 for (tmp = GET_MAP_OB (m, sx, sy); tmp; tmp = tmp->above) 115 for (object *tmp = ms.top; tmp; tmp = tmp->below)
188 { 116 {
189 117 if (OB_MOVE_BLOCK (ob, tmp))
190 /* This must be before the checks below. Code for inventory checkers. */
191 if (tmp->type == CHECK_INV && OB_MOVE_BLOCK (ob, tmp))
192 { 118 {
193 /* If last_sp is set, the player/monster needs an object, 119 if (INVOKE_OBJECT (BLOCKED_MOVE, tmp, ob))
194 * so we check for it. If they don't have it, they can't 120 if (RESULT_INT (0))
195 * pass through this space. 121 return 1;
196 */ 122 else
197 if (tmp->last_sp) 123 continue;
124
125 if (tmp->type == CHECK_INV)
198 { 126 {
199 if (check_inv_recursive (ob, tmp) == NULL) 127 bool have = check_inv_recursive (ob, tmp);
128
129 // last_sp set means we block if we don't have.
130 if (logical_xor (have, tmp->last_sp))
200 return 1; 131 return 1;
201 else 132 }
202 continue; 133 else if (tmp->type == T_MATCH)
134 {
135 // T_MATCH allows "entrance" iff the match is true
136 // == blocks if the match fails
137
138 // we could have used an INVOKE_OBJECT, but decided against it, as we
139 // assume that T_MATCH is relatively common.
140 if (!match (tmp->slaying, ob, tmp, ob))
141 return 1;
203 } 142 }
204 else 143 else
205 { 144 return 1; // unconditional block
206 /* In this case, the player must not have the object - 145
207 * if they do, they can't pass through.
208 */
209 if (check_inv_recursive (ob, tmp) != NULL) /* player has object */
210 return 1;
211 else
212 continue;
213 }
214 } /* if check_inv */
215 else 146 } else {
216 { 147 // space does not block the ob, directly, but
217 /* Broke apart a big nasty if into several here to make 148 // anything alive that is not a door still
218 * this more readable. first check - if the space blocks 149 // blocks anything
219 * movement, can't move here. 150
220 * second - if a monster, can't move there, unles it is a 151 if (tmp->flag [FLAG_ALIVE]
221 * hidden dm 152 && tmp->type != DOOR
222 */ 153 && tmp->head_ () != ob) //TODO: maybe move these check up?
223 if (OB_MOVE_BLOCK (ob, tmp))
224 return 1;
225 if (QUERY_FLAG (tmp, FLAG_ALIVE) && tmp->head != ob && tmp != ob &&
226 tmp->type != DOOR && !(QUERY_FLAG (tmp, FLAG_WIZ) && tmp->contr->hidden))
227 return 1; 154 return 1;
228 } 155 }
229
230 } 156 }
157
231 return 0; 158 return 0;
232} 159}
233 160
234/* 161/*
235 * Returns true if the given object can't fit in the given spot. 162 * Returns the blocking object if the given object can't fit in the given
236 * This is meant for multi space objects - for single space objecs, 163 * spot. This is meant for multi space objects - for single space objecs,
237 * just calling get_map_blocked and checking that against movement type 164 * just calling get_map_blocked and checking that against movement type
238 * of object. This function goes through all the parts of the 165 * of object. This function goes through all the parts of the multipart
239 * multipart object and makes sure they can be inserted. 166 * object and makes sure they can be inserted.
240 * 167 *
241 * While this doesn't call out of map, the get_map_flags does. 168 * While this doesn't call out of map, the get_map_flags does.
242 * 169 *
243 * This function has been used to deprecate arch_out_of_map - 170 * This function has been used to deprecate arch_out_of_map -
244 * this function also does that check, and since in most cases, 171 * this function also does that check, and since in most cases,
… …
255 * 182 *
256 * Note this used to be arch_blocked, but with new movement 183 * Note this used to be arch_blocked, but with new movement
257 * code, we need to have actual object to check its move_type 184 * code, we need to have actual object to check its move_type
258 * against the move_block values. 185 * against the move_block values.
259 */ 186 */
260int 187bool
261ob_blocked (const object *ob, maptile *m, sint16 x, sint16 y) 188object::blocked (maptile *m, int x, int y) const
262{ 189{
263 archetype *tmp; 190 for (archetype *tmp = arch; tmp; tmp = (archetype *)tmp->more)
264 int flag;
265 maptile *m1;
266 sint16 sx, sy;
267
268 if (!ob)
269 {
270 flag = get_map_flags (m, &m1, x, y, &sx, &sy);
271 if (flag & P_OUT_OF_MAP)
272 return P_OUT_OF_MAP;
273
274 /* don't have object, so don't know what types would block */
275 return m1->at (sx, sy).move_block;
276 } 191 {
192 mapxy pos (m, x + tmp->x, y + tmp->y);
277 193
278 for (tmp = ob->arch; tmp; tmp = tmp->more) 194 if (!pos.normalise ())
279 { 195 return 1;
280 flag = get_map_flags (m, &m1, x + tmp->clone.x, y + tmp->clone.y, &sx, &sy);
281 196
282 if (flag & P_OUT_OF_MAP) 197 mapspace &ms = *pos;
283 return P_OUT_OF_MAP; 198
284 if (flag & P_IS_ALIVE) 199 if (ms.flags () & P_IS_ALIVE)
285 return P_IS_ALIVE; 200 return 1;
286 201
287 mapspace &ms = m1->at (sx, sy); 202 /* However, often ob doesn't have any move type
288 203 * (signifying non-moving objects)
289 /* find_first_free_spot() calls this function. However, often
290 * ob doesn't have any move type (when used to place exits)
291 * so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work. 204 * so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
292 */ 205 */
293
294 if (ob->move_type == 0 && ms.move_block != MOVE_ALL) 206 if (!move_type && ms.move_block != MOVE_ALL)
295 continue; 207 continue;
296 208
297 /* Note it is intentional that we check ob - the movement type of the 209 /* Note it is intentional that we check ob - the movement type of the
298 * head of the object should correspond for the entire object. 210 * head of the object should correspond for the entire object.
299 */ 211 */
300 if (OB_TYPE_MOVE_BLOCK (ob, ms.move_block)) 212 if (ms.blocks (move_type))
301 return P_NO_PASS; 213 return 1;
302 } 214 }
303 215
304 return 0; 216 return 0;
305} 217}
306 218
307/* When the map is loaded, load_object does not actually insert objects 219//-GPL
308 * into inventory, but just links them. What this does is go through
309 * and insert them properly.
310 * The object 'container' is the object that contains the inventory.
311 * This is needed so that we can update the containers weight.
312 */
313void
314fix_container (object *container)
315{
316 object *tmp = container->inv, *next;
317
318 container->inv = 0;
319 while (tmp)
320 {
321 next = tmp->below;
322 if (tmp->inv)
323 fix_container (tmp);
324
325 insert_ob_in_ob (tmp, container);
326 tmp = next;
327 }
328
329 /* sum_weight will go through and calculate what all the containers are
330 * carrying.
331 */
332 sum_weight (container);
333}
334 220
335void 221void
336maptile::set_object_flag (int flag, int value) 222maptile::set_object_flag (int flag, int value)
337{ 223{
338 if (!spaces) 224 if (!spaces)
… …
340 226
341 for (mapspace *ms = spaces + size (); ms-- > spaces; ) 227 for (mapspace *ms = spaces + size (); ms-- > spaces; )
342 for (object *tmp = ms->bot; tmp; tmp = tmp->above) 228 for (object *tmp = ms->bot; tmp; tmp = tmp->above)
343 tmp->flag [flag] = value; 229 tmp->flag [flag] = value;
344} 230}
231
232void
233maptile::post_load_original ()
234{
235 if (!spaces)
236 return;
237
238 set_object_flag (FLAG_OBJ_ORIGINAL);
239
240 for (mapspace *ms = spaces + size (); ms-- > spaces; )
241 for (object *tmp = ms->bot; tmp; tmp = tmp->above)
242 INVOKE_OBJECT (RESET, tmp);
243}
244
245void
246maptile::post_load ()
247{
248#if 0
249 if (!spaces)
250 return;
251
252 for (mapspace *ms = spaces + size (); ms-- > spaces; )
253 for (object *tmp = ms->bot; tmp; tmp = tmp->above)
254 ; // nop
255#endif
256}
257
258//+GPL
345 259
346/* link_multipart_objects go through all the objects on the map looking 260/* link_multipart_objects go through all the objects on the map looking
347 * for objects whose arch says they are multipart yet according to the 261 * for objects whose arch says they are multipart yet according to the
348 * info we have, they only have the head (as would be expected when 262 * info we have, they only have the head (as would be expected when
349 * they are saved). 263 * they are saved).
… …
353{ 267{
354 if (!spaces) 268 if (!spaces)
355 return; 269 return;
356 270
357 for (mapspace *ms = spaces + size (); ms-- > spaces; ) 271 for (mapspace *ms = spaces + size (); ms-- > spaces; )
358 for (object *tmp = ms->bot; tmp; tmp = tmp->above) 272 {
273 object *op = ms->bot;
274 while (op)
359 { 275 {
360 /* already multipart - don't do anything more */ 276 /* already multipart - don't do anything more */
361 if (!tmp->head && !tmp->more) 277 if (op->head_ () == op && !op->more && op->arch->more)
362 {
363 /* If there is nothing more to this object, this for loop
364 * won't do anything.
365 */
366 archetype *at;
367 object *last, *op;
368 for (at = tmp->arch->more, last = tmp;
369 at;
370 at = at->more, last = op)
371 { 278 {
372 op = arch_to_object (at); 279 op->remove ();
280 op->expand_tail ();
373 281
374 /* update x,y coordinates */ 282 // FIXME: INS_ON_TOP is just a workaround for the pentagram vs.
375 op->x += tmp->x; 283 // multi-tile monster bug, where INS_ABOVE_FLOOR_ONLY put the monsters
376 op->y += tmp->y; 284 // below the pentagrams... hopefully INS_ON_TOP doesn't break anything
377 op->head = tmp;
378 op->map = this;
379 last->more = op;
380 op->name = tmp->name;
381 op->title = tmp->title;
382
383 /* we could link all the parts onto tmp, and then just
384 * call insert_ob_in_map once, but the effect is the same,
385 * as insert_ob_in_map will call itself with each part, and
386 * the coding is simpler to just to it here with each part.
387 */
388 insert_ob_in_map (op, op->map, tmp, INS_NO_MERGE | INS_ABOVE_FLOOR_ONLY | INS_NO_WALK_ON); 285 insert (op, op->x, op->y, 0, INS_NO_MERGE | INS_ON_TOP | INS_NO_WALK_ON);
286
287 op = ms->bot; // we are mutating the mapspace too much with INS_ON_TOP
288 // so we have to reset the iteration through the mapspace
389 } 289 }
290 else
291 op = op->above;
390 } 292 }
391 } 293 }
392} 294}
295
296//-GPL
393 297
394/* 298/*
395 * Loads (ands parses) the objects into a given map from the specified 299 * Loads (ands parses) the objects into a given map from the specified
396 * file pointer. 300 * file pointer.
397 */ 301 */
398bool 302bool
399maptile::_load_objects (object_thawer &f) 303maptile::_load_objects (object_thawer &f)
400{ 304{
401 for (;;) 305 for (;;)
402 { 306 {
403 coroapi::cede_every (1000); // cede once in a while 307 coroapi::cede_to_tick (); // cede once in a while
404 308
405 switch (f.kw) 309 switch (f.kw)
406 { 310 {
407 case KW_arch: 311 case KW_arch:
408 if (object *op = object::read (f, this)) 312 if (object *op = object::read (f, this))
409 { 313 {
314 // TODO: why?
410 if (op->inv) 315 if (op->inv)
411 sum_weight (op); 316 op->update_weight ();
412 317
413 insert_ob_in_map (op, this, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ON_TOP | INS_MAP_LOAD); 318 if (IN_RANGE_EXC (op->x, 0, width) && IN_RANGE_EXC (op->y, 0, height))
319 {
320 // we insert manually because
321 // a) its way faster
322 // b) we remove manually, too, and there are good reasons for that
323 // c) it's correct
324 mapspace &ms = at (op->x, op->y);
325
326 op->flag [FLAG_REMOVED] = false;
327
328 op->above = 0;
329 op->below = ms.top;
330
331 *(ms.top ? &ms.top->above : &ms.bot) = op;
332
333 ms.top = op;
334 ms.flags_ = 0;
335 }
336 else
337 {
338 f.parse_warn (format ("object %s out of range", op->debug_desc ()));
339 op->destroy ();
340 }
414 } 341 }
415 342
416 continue; 343 continue;
417 344
418 case KW_EOF: 345 case KW_EOF:
… …
431} 358}
432 359
433void 360void
434maptile::activate () 361maptile::activate ()
435{ 362{
436 if (!spaces) 363 if (spaces)
437 return;
438
439 for (mapspace *ms = spaces + size (); ms-- > spaces; ) 364 for (mapspace *ms = spaces + size (); ms-- > spaces; )
440 for (object *op = ms->bot; op; op = op->above) 365 for (object *op = ms->bot; op; op = op->above)
441 op->activate_recursive (); 366 op->activate_recursive ();
442} 367}
443 368
444void 369void
445maptile::deactivate () 370maptile::deactivate ()
446{ 371{
447 if (!spaces) 372 if (spaces)
448 return;
449
450 for (mapspace *ms = spaces + size (); ms-- > spaces; ) 373 for (mapspace *ms = spaces + size (); ms-- > spaces; )
451 for (object *op = ms->bot; op; op = op->above) 374 for (object *op = ms->bot; op; op = op->above)
452 op->deactivate_recursive (); 375 op->deactivate_recursive ();
453} 376}
454 377
455bool 378bool
456maptile::_save_objects (object_freezer &f, int flags) 379maptile::_save_objects (object_freezer &f, int flags)
457{ 380{
458 coroapi::cede (); 381 coroapi::cede_to_tick ();
459 382
460 if (flags & IO_HEADER) 383 if (flags & IO_HEADER)
461 _save_header (f); 384 _save_header (f);
462 385
463 if (!spaces) 386 if (!spaces)
464 return false; 387 return false;
465 388
466 for (int i = 0; i < size (); ++i) 389 for (int i = 0; i < size (); ++i)
467 { 390 {
468 int unique = 0; 391 bool unique = 0;
392
469 for (object *op = spaces [i].bot; op; op = op->above) 393 for (object *op = spaces [i].bot; op; op = op->above)
470 { 394 {
471 if (op->flag [FLAG_UNIQUE] && op->flag [FLAG_IS_FLOOR]) 395 unique |= op->flag [FLAG_UNIQUE] && op->flag [FLAG_IS_FLOOR];
472 unique = 1;
473 396
474 if (!op->can_map_save ()) 397 if (expect_false (!op->can_map_save ()))
475 continue; 398 continue;
476 399
477 if (unique || op->flag [FLAG_UNIQUE]) 400 if (expect_false (unique || op->flag [FLAG_UNIQUE]))
478 { 401 {
479 if (flags & IO_UNIQUES) 402 if (flags & IO_UNIQUES)
480 op->write (f); 403 op->write (f);
481 } 404 }
482 else if (flags & IO_OBJECTS) 405 else if (expect_true (flags & IO_OBJECTS))
483 op->write (f); 406 op->write (f);
484 } 407 }
485 } 408 }
486 409
487 coroapi::cede (); 410 coroapi::cede_to_tick ();
488 411
489 return true; 412 return true;
490}
491
492bool
493maptile::_load_objects (const char *path, bool skip_header)
494{
495 object_thawer f (path);
496
497 if (!f)
498 return false;
499
500 f.next ();
501
502 if (skip_header)
503 for (;;)
504 {
505 keyword kw = f.kw;
506 f.skip ();
507 if (kw == KW_end)
508 break;
509 }
510
511 return _load_objects (f);
512} 413}
513 414
514bool 415bool
515maptile::_save_objects (const char *path, int flags) 416maptile::_save_objects (const char *path, int flags)
516{ 417{
… …
520 return false; 421 return false;
521 422
522 return freezer.save (path); 423 return freezer.save (path);
523} 424}
524 425
525maptile::maptile () 426void
427maptile::init ()
526{ 428{
527 in_memory = MAP_SWAPPED; 429 in_memory = MAP_SWAPPED;
528 430
529 /* The maps used to pick up default x and y values from the 431 /* The maps used to pick up default x and y values from the
530 * map archetype. Mimic that behaviour. 432 * map archetype. Mimic that behaviour.
531 */ 433 */
532 width = 16; 434 width = 16;
533 height = 16; 435 height = 16;
534 timeout = 300; 436 timeout = 300;
535 max_nrof = 1000; // 1000 items of anything 437 max_items = MAX_ITEM_PER_ACTION;
536 max_volume = 2000000; // 2m³ 438 max_volume = 2000000; // 2m³
537}
538
539maptile::maptile (int w, int h)
540{
541 in_memory = MAP_SWAPPED;
542
543 width = w;
544 height = h;
545 reset_timeout = 0; 439 reset_timeout = 0;
546 timeout = 300;
547 enter_x = 0; 440 enter_x = 0;
548 enter_y = 0; 441 enter_y = 0;
442}
443
444maptile::maptile ()
445{
446 init ();
447}
448
449maptile::maptile (int w, int h)
450{
451 init ();
452
453 width = w;
454 height = h;
549 455
550 alloc (); 456 alloc ();
551} 457}
552 458
553/* 459/*
… …
561 if (spaces) 467 if (spaces)
562 return; 468 return;
563 469
564 spaces = salloc0<mapspace> (size ()); 470 spaces = salloc0<mapspace> (size ());
565} 471}
472
473//+GPL
566 474
567/* Takes a string from a map definition and outputs a pointer to the array of shopitems 475/* Takes a string from a map definition and outputs a pointer to the array of shopitems
568 * corresponding to that string. Memory is allocated for this, it must be freed 476 * corresponding to that string. Memory is allocated for this, it must be freed
569 * at a later date. 477 * at a later date.
570 * Called by parse_map_headers below. 478 * Called by parse_map_headers below.
… …
647 return items; 555 return items;
648} 556}
649 557
650/* opposite of parse string, this puts the string that was originally fed in to 558/* opposite of parse string, this puts the string that was originally fed in to
651 * the map (or something equivilent) into output_string. */ 559 * the map (or something equivilent) into output_string. */
652static void 560static const char *
653print_shop_string (maptile *m, char *output_string) 561print_shop_string (maptile *m)
654{ 562{
655 int i; 563 static dynbuf_text buf; buf.clear ();
656 char tmp[MAX_BUF]; 564 bool first = true;
657 565
658 strcpy (output_string, "");
659 for (i = 0; i < m->shopitems[0].index; i++) 566 for (int i = 0; i < m->shopitems[0].index; i++)
660 { 567 {
568 if (!first)
569 buf << ';';
570
571 first = false;
572
661 if (m->shopitems[i].typenum) 573 if (m->shopitems[i].typenum)
662 { 574 {
663 if (m->shopitems[i].strength) 575 if (m->shopitems[i].strength)
664 sprintf (tmp, "%s:%d;", m->shopitems[i].name, m->shopitems[i].strength); 576 buf.printf ("%s:%d", m->shopitems[i].name, m->shopitems[i].strength);
665 else 577 else
666 sprintf (tmp, "%s;", m->shopitems[i].name); 578 buf.printf ("%s", m->shopitems[i].name);
667 } 579 }
668 else 580 else
669 { 581 {
670 if (m->shopitems[i].strength) 582 if (m->shopitems[i].strength)
671 sprintf (tmp, "*:%d;", m->shopitems[i].strength); 583 buf.printf ("*:%d", m->shopitems[i].strength);
672 else 584 else
673 sprintf (tmp, "*"); 585 buf.printf ("*");
674 } 586 }
675
676 strcat (output_string, tmp);
677 } 587 }
588
589 return buf;
678} 590}
591
592//-GPL
679 593
680/* This loads the header information of the map. The header 594/* This loads the header information of the map. The header
681 * contains things like difficulty, size, timeout, etc. 595 * contains things like difficulty, size, timeout, etc.
682 * this used to be stored in the map object, but with the 596 * this used to be stored in the map object, but with the
683 * addition of tiling, fields beyond that easily named in an 597 * addition of tiling, fields beyond that easily named in an
… …
691bool 605bool
692maptile::_load_header (object_thawer &thawer) 606maptile::_load_header (object_thawer &thawer)
693{ 607{
694 for (;;) 608 for (;;)
695 { 609 {
696 keyword kw = thawer.get_kv ();
697
698 switch (kw) 610 switch (thawer.kw)
699 { 611 {
700 case KW_msg: 612 case KW_msg:
701 thawer.get_ml (KW_endmsg, msg); 613 thawer.get_ml (KW_endmsg, msg);
702 break; 614 break;
703 615
… …
726 case KW_shopgreed: thawer.get (shopgreed); break; 638 case KW_shopgreed: thawer.get (shopgreed); break;
727 case KW_shopmin: thawer.get (shopmin); break; 639 case KW_shopmin: thawer.get (shopmin); break;
728 case KW_shopmax: thawer.get (shopmax); break; 640 case KW_shopmax: thawer.get (shopmax); break;
729 case KW_shoprace: thawer.get (shoprace); break; 641 case KW_shoprace: thawer.get (shoprace); break;
730 case KW_outdoor: thawer.get (outdoor); break; 642 case KW_outdoor: thawer.get (outdoor); break;
731 case KW_temp: thawer.get (temp); break;
732 case KW_pressure: thawer.get (pressure); break;
733 case KW_humid: thawer.get (humid); break;
734 case KW_windspeed: thawer.get (windspeed); break;
735 case KW_winddir: thawer.get (winddir); break;
736 case KW_sky: thawer.get (sky); break;
737 643
738 case KW_per_player: thawer.get (per_player); break; 644 case KW_per_player: thawer.get (per_player); break;
739 case KW_per_party: thawer.get (per_party); break; 645 case KW_per_party: thawer.get (per_party); break;
646 case KW_no_reset: thawer.get (no_reset); break;
647 case KW_no_drop: thawer.get (no_drop); break;
740 648
741 case KW_region: default_region = region::find (thawer.get_str ()); break; 649 case KW_region: default_region = region::find (thawer); break;
742 case KW_shopitems: shopitems = parse_shop_string (thawer.get_str ()); break; 650 case KW_shopitems: shopitems = parse_shop_string (thawer.get_str ()); break;
743 651
744 // old names new names 652 // old names new names
745 case KW_hp: case KW_enter_x: thawer.get (enter_x); break; 653 case KW_hp: case KW_enter_x: thawer.get (enter_x); break;
746 case KW_sp: case KW_enter_y: thawer.get (enter_y); break; 654 case KW_sp: case KW_enter_y: thawer.get (enter_y); break;
… …
755 case KW_tile_path_1: thawer.get (tile_path [0]); break; 663 case KW_tile_path_1: thawer.get (tile_path [0]); break;
756 case KW_tile_path_2: thawer.get (tile_path [1]); break; 664 case KW_tile_path_2: thawer.get (tile_path [1]); break;
757 case KW_tile_path_3: thawer.get (tile_path [2]); break; 665 case KW_tile_path_3: thawer.get (tile_path [2]); break;
758 case KW_tile_path_4: thawer.get (tile_path [3]); break; 666 case KW_tile_path_4: thawer.get (tile_path [3]); break;
759 667
668 case KW_ERROR:
669 set_key_text (thawer.kw_str, thawer.value);
670 break;
671
760 case KW_end: 672 case KW_end:
673 thawer.next ();
761 return true; 674 return true;
762 675
763 default: 676 default:
764 if (!thawer.parse_error ("map", 0)) 677 if (!thawer.parse_error ("map"))
765 return false; 678 return false;
766 break; 679 break;
767 } 680 }
681
682 thawer.next ();
768 } 683 }
769 684
770 abort (); 685 abort ();
771} 686}
772 687
773bool 688//+GPL
774maptile::_load_header (const char *path)
775{
776 object_thawer thawer (path);
777
778 if (!thawer)
779 return false;
780
781 return _load_header (thawer);
782}
783 689
784/****************************************************************************** 690/******************************************************************************
785 * This is the start of unique map handling code 691 * This is the start of unique map handling code
786 *****************************************************************************/ 692 *****************************************************************************/
787 693
… …
794 int unique = 0; 700 int unique = 0;
795 for (object *op = spaces [i].bot; op; ) 701 for (object *op = spaces [i].bot; op; )
796 { 702 {
797 object *above = op->above; 703 object *above = op->above;
798 704
799 if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE)) 705 if (op->flag [FLAG_IS_FLOOR] && op->flag [FLAG_UNIQUE])
800 unique = 1; 706 unique = 1;
801 707
802 if (op->head == NULL && (QUERY_FLAG (op, FLAG_UNIQUE) || unique)) 708 if (op->head_ () == op && (op->flag [FLAG_UNIQUE] || unique))
803 {
804 op->destroy_inv (false);
805 op->destroy (); 709 op->destroy ();
806 }
807 710
808 op = above; 711 op = above;
809 } 712 }
810 } 713 }
811} 714}
812 715
716//-GPL
717
813bool 718bool
814maptile::_save_header (object_freezer &freezer) 719maptile::_save_header (object_freezer &freezer)
815{ 720{
816#define MAP_OUT(k) freezer.put (KW_ ## k, k) 721#define MAP_OUT(k) freezer.put (KW(k), k)
817#define MAP_OUT2(k,v) freezer.put (KW_ ## k, v) 722#define MAP_OUT2(k,v) freezer.put (KW(k), v)
818 723
819 MAP_OUT2 (arch, "map"); 724 MAP_OUT2 (arch, CS(map));
820 725
821 if (name) MAP_OUT (name); 726 if (name) MAP_OUT (name);
822 MAP_OUT (swap_time); 727 MAP_OUT (swap_time);
823 MAP_OUT (reset_time); 728 MAP_OUT (reset_time);
824 MAP_OUT (reset_timeout); 729 MAP_OUT (reset_timeout);
825 MAP_OUT (fixed_resettime); 730 MAP_OUT (fixed_resettime);
731 MAP_OUT (no_reset);
732 MAP_OUT (no_drop);
826 MAP_OUT (difficulty); 733 MAP_OUT (difficulty);
827
828 if (default_region) MAP_OUT2 (region, default_region->name); 734 if (default_region) MAP_OUT2 (region, default_region->name);
829 735
830 if (shopitems) 736 if (shopitems) MAP_OUT2 (shopitems, print_shop_string (this));
831 {
832 char shop[MAX_BUF];
833 print_shop_string (this, shop);
834 MAP_OUT2 (shopitems, shop);
835 }
836
837 MAP_OUT (shopgreed); 737 MAP_OUT (shopgreed);
838 MAP_OUT (shopmin); 738 MAP_OUT (shopmin);
839 MAP_OUT (shopmax); 739 MAP_OUT (shopmax);
840 if (shoprace) MAP_OUT (shoprace); 740 if (shoprace) MAP_OUT (shoprace);
841 MAP_OUT (darkness); 741
842 MAP_OUT (width); 742 MAP_OUT (width);
843 MAP_OUT (height); 743 MAP_OUT (height);
844 MAP_OUT (enter_x); 744 MAP_OUT (enter_x);
845 MAP_OUT (enter_y); 745 MAP_OUT (enter_y);
846 746 MAP_OUT (darkness);
847 if (msg) freezer.put (KW_msg , KW_endmsg , msg);
848 if (maplore) freezer.put (KW_maplore, KW_endmaplore, maplore);
849
850 MAP_OUT (outdoor); 747 MAP_OUT (outdoor);
851 MAP_OUT (temp); 748
852 MAP_OUT (pressure); 749 if (msg) freezer.put (KW(msg) , KW(endmsg) , msg);
853 MAP_OUT (humid); 750 if (maplore) freezer.put (KW(maplore), KW(endmaplore), maplore);
854 MAP_OUT (windspeed);
855 MAP_OUT (winddir);
856 MAP_OUT (sky);
857 751
858 MAP_OUT (per_player); 752 MAP_OUT (per_player);
859 MAP_OUT (per_party); 753 MAP_OUT (per_party);
860 754
861 if (tile_path [0]) MAP_OUT2 (tile_path_1, tile_path [0]); 755 if (tile_path [0]) MAP_OUT2 (tile_path_1, tile_path [0]);
862 if (tile_path [1]) MAP_OUT2 (tile_path_2, tile_path [1]); 756 if (tile_path [1]) MAP_OUT2 (tile_path_2, tile_path [1]);
863 if (tile_path [2]) MAP_OUT2 (tile_path_3, tile_path [2]); 757 if (tile_path [2]) MAP_OUT2 (tile_path_3, tile_path [2]);
864 if (tile_path [3]) MAP_OUT2 (tile_path_4, tile_path [3]); 758 if (tile_path [3]) MAP_OUT2 (tile_path_4, tile_path [3]);
865 759
866 freezer.put (this); 760 freezer.put (this);
867 freezer.put (KW_end); 761 freezer.put (KW(end));
868 762
869 return true; 763 return true;
870} 764}
871 765
872bool 766bool
… …
878 return false; 772 return false;
879 773
880 return freezer.save (path); 774 return freezer.save (path);
881} 775}
882 776
777//+GPL
778
883/* 779/*
884 * Remove and free all objects in the given map. 780 * Remove and free all objects in the given map.
885 */ 781 */
886void 782void
887maptile::clear () 783maptile::clear ()
888{ 784{
889 sfree (regions, size ()), regions = 0;
890 free (regionmap), regionmap = 0;
891
892 if (spaces) 785 if (spaces)
893 { 786 {
894 for (mapspace *ms = spaces + size (); ms-- > spaces; ) 787 for (mapspace *ms = spaces + size (); ms-- > spaces; )
895 while (object *op = ms->bot) 788 while (object *op = ms->bot)
896 { 789 {
790 // manually remove, as to not trigger anything
791 if (ms->bot = op->above)
792 ms->bot->below = 0;
793
794 op->flag [FLAG_REMOVED] = true;
795
796 object *head = op->head_ ();
897 if (op->head) 797 if (op == head)
898 op = op->head;
899
900 op->destroy_inv (false);
901 op->destroy (); 798 op->destroy ();
799 else if (head->map != op->map)
800 {
801 LOG (llevDebug, "bad luck for object crossing map borders: %s", head->debug_desc ());
802 head->destroy ();
803 }
902 } 804 }
903 805
904 sfree (spaces, size ()), spaces = 0; 806 sfree0 (spaces, size ());
905 } 807 }
906 808
907 if (buttons) 809 if (buttons)
908 free_objectlinkpt (buttons), buttons = 0; 810 free_objectlinkpt (buttons), buttons = 0;
811
812 sfree0 (regions, size ());
813 delete [] regionmap; regionmap = 0;
909} 814}
910 815
911void 816void
912maptile::clear_header () 817maptile::clear_header ()
913{ 818{
… …
945 attachable::do_destroy (); 850 attachable::do_destroy ();
946 851
947 clear (); 852 clear ();
948} 853}
949 854
950/* 855/* decay and destroy perishable items in a map */
951 * Updates every button on the map (by calling update_button() for them). 856// TODO: should be done regularly, not on map load?
952 */
953void 857void
954maptile::update_buttons () 858maptile::do_decay_objects ()
955{ 859{
956 for (oblinkpt *obp = buttons; obp; obp = obp->next) 860 if (!spaces)
957 for (objectlink *ol = obp->link; ol; ol = ol->next) 861 return;
862
863 for (mapspace *ms = spaces + size (); ms-- > spaces; )
864 for (object *above, *op = ms->bot; op; op = above)
958 { 865 {
959 if (!ol->ob) 866 above = op->above;
867
868 // do not decay anything above unique floor tiles (yet :)
869 if (op->flag [FLAG_IS_FLOOR] && op->flag [FLAG_UNIQUE])
870 break;
871
872 bool destroy = 0;
873
874 if (op->flag [FLAG_IS_FLOOR]
875 || op->flag [FLAG_OBJ_ORIGINAL]
876 || op->flag [FLAG_UNIQUE]
877 || op->flag [FLAG_OVERLAY_FLOOR]
878 || op->flag [FLAG_UNPAID]
879 || op->is_alive ())
880 ; // do not decay
881 else if (op->is_weapon ())
960 { 882 {
961 LOG (llevError, "Internal error in update_button (%s (%dx%d), connected %ld).\n", 883 op->stats.dam--;
962 ol->ob ? (const char *) ol->ob->name : "null", ol->ob ? ol->ob->x : -1, ol->ob ? ol->ob->y : -1, obp->value); 884 if (op->stats.dam < 0)
963 continue; 885 destroy = 1;
964 } 886 }
965 887 else if (op->is_armor ())
966 if (ol->ob->type == BUTTON || ol->ob->type == PEDESTAL)
967 { 888 {
968 update_button (ol->ob); 889 op->stats.ac--;
969 break; 890 if (op->stats.ac < 0)
891 destroy = 1;
970 } 892 }
893 else if (op->type == FOOD)
894 {
895 op->stats.food -= rndm (5, 20);
896 if (op->stats.food < 0)
897 destroy = 1;
898 }
899 else
900 {
901 int mat = op->materials;
902
903 if (mat & M_PAPER
904 || mat & M_LEATHER
905 || mat & M_WOOD
906 || mat & M_ORGANIC
907 || mat & M_CLOTH
908 || mat & M_LIQUID
909 || (mat & M_IRON && rndm (1, 5) == 1)
910 || (mat & M_GLASS && rndm (1, 2) == 1)
911 || ((mat & M_STONE || mat & M_ADAMANT) && rndm (1, 10) == 1)
912 || ((mat & M_SOFT_METAL || mat & M_BONE) && rndm (1, 3) == 1)
913 //|| (mat & M_ICE && temp > 32)
914 )
915 destroy = 1;
916 }
917
918 /* adjust overall chance below */
919 if (destroy && rndm (0, 1))
920 op->destroy ();
971 } 921 }
972} 922}
973 923
974/* 924/*
975 * This routine is supposed to find out the difficulty of the map. 925 * This routine is supposed to find out the difficulty of the map.
976 * difficulty does not have a lot to do with character level, 926 * difficulty does not have a lot to do with character level,
977 * but does have a lot to do with treasure on the map. 927 * but does have a lot to do with treasure on the map.
978 * 928 *
979 * Difficulty can now be set by the map creature. If the value stored 929 * Difficulty can now be set by the map creator. If the value stored
980 * in the map is zero, then use this routine. Maps should really 930 * in the map is zero, then use this routine. Maps should really
981 * have a difficulty set than using this function - human calculation 931 * have a difficulty set rather than using this function - human calculation
982 * is much better than this functions guesswork. 932 * is much better than this function's guesswork.
983 */ 933 */
984int 934int
985maptile::estimate_difficulty () const 935maptile::estimate_difficulty () const
986{ 936{
987 long monster_cnt = 0; 937 long monster_cnt = 0;
… …
989 sint64 total_exp = 0; 939 sint64 total_exp = 0;
990 940
991 for (mapspace *ms = spaces + size (); ms-- > spaces; ) 941 for (mapspace *ms = spaces + size (); ms-- > spaces; )
992 for (object *op = ms->bot; op; op = op->above) 942 for (object *op = ms->bot; op; op = op->above)
993 { 943 {
994 if (QUERY_FLAG (op, FLAG_MONSTER)) 944 if (op->flag [FLAG_MONSTER])
995 { 945 {
996 total_exp += op->stats.exp; 946 total_exp += op->stats.exp;
997 monster_cnt++; 947 monster_cnt++;
998 } 948 }
999 949
1000 if (QUERY_FLAG (op, FLAG_GENERATOR)) 950 if (op->flag [FLAG_GENERATOR])
1001 { 951 {
1002 total_exp += op->stats.exp; 952 total_exp += op->stats.exp;
1003 953
1004 if (archetype *at = type_to_archetype (GENERATE_TYPE (op))) 954 if (archetype *at = op->other_arch)
955 {
1005 total_exp += at->clone.stats.exp * 8; 956 total_exp += at->stats.exp * 8;
1006
1007 monster_cnt++; 957 monster_cnt++;
958 }
959
960 for (object *inv = op->inv; inv; inv = inv->below)
961 {
962 total_exp += op->stats.exp * 8;
963 monster_cnt++;
964 }
1008 } 965 }
1009 } 966 }
1010 967
1011 avgexp = (double) total_exp / monster_cnt; 968 avgexp = (double) total_exp / monster_cnt;
1012 969
… …
1025 * postive values make it darker, negative make it brighter 982 * postive values make it darker, negative make it brighter
1026 */ 983 */
1027int 984int
1028maptile::change_map_light (int change) 985maptile::change_map_light (int change)
1029{ 986{
1030 int new_level = darkness + change;
1031
1032 /* Nothing to do */ 987 /* Nothing to do */
1033 if (!change || (new_level <= 0 && darkness == 0) || (new_level >= MAX_DARKNESS && darkness >= MAX_DARKNESS)) 988 if (!change)
1034 return 0; 989 return 0;
1035 990
1036 /* inform all players on the map */ 991 /* inform all players on the map */
1037 if (change > 0) 992 if (change > 0)
1038 new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes darker."); 993 new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes darker.");
1039 else 994 else
1040 new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes brighter."); 995 new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes brighter.");
1041 996
1042 /* Do extra checking. since darkness is a unsigned value, 997 darkness = clamp (darkness + change, -MAX_DARKNESS, MAX_DARKNESS);
1043 * we need to be extra careful about negative values.
1044 * In general, the checks below are only needed if change
1045 * is not +/-1
1046 */
1047 if (new_level < 0)
1048 darkness = 0;
1049 else if (new_level >= MAX_DARKNESS)
1050 darkness = MAX_DARKNESS;
1051 else
1052 darkness = new_level;
1053 998
1054 /* All clients need to get re-updated for the change */ 999 /* All clients need to get re-updated for the change */
1055 update_all_map_los (this); 1000 update_all_map_los (this);
1001
1056 return 1; 1002 return 1;
1057} 1003}
1058 1004
1059/* 1005/*
1060 * This function updates various attributes about a specific space 1006 * This function updates various attributes about a specific space
… …
1063 * through, etc) 1009 * through, etc)
1064 */ 1010 */
1065void 1011void
1066mapspace::update_ () 1012mapspace::update_ ()
1067{ 1013{
1068 object *tmp, *last = 0; 1014 object *last = 0;
1069 uint8 flags = P_UPTODATE, light = 0, anywhere = 0; 1015 uint8 flags = P_UPTODATE;
1016 sint8 light = 0;
1070 MoveType move_block = 0, move_slow = 0, move_on = 0, move_off = 0, move_allow = 0; 1017 MoveType move_block = 0, move_slow = 0, move_on = 0, move_off = 0, move_allow = 0;
1018 uint64_t volume = 0;
1019 uint32_t items = 0;
1020 object *anywhere = 0;
1021 uint8_t middle_visibility = 0;
1071 1022
1072 //object *middle = 0; 1023 //object *middle = 0;
1073 //object *top = 0; 1024 //object *top = 0;
1074 //object *floor = 0; 1025 //object *floor = 0;
1075 // this seems to generate better code than using locals, above 1026 // this seems to generate better code than using locals, above
1076 object *&top = faces_obj[0] = 0; 1027 object *&top = faces_obj[0] = 0;
1077 object *&middle = faces_obj[1] = 0; 1028 object *&middle = faces_obj[1] = 0;
1078 object *&floor = faces_obj[2] = 0; 1029 object *&floor = faces_obj[2] = 0;
1079 1030
1031 object::flags_t allflags; // all flags of all objects or'ed together
1032
1080 for (tmp = bot; tmp; last = tmp, tmp = tmp->above) 1033 for (object *tmp = bot; tmp; last = tmp, tmp = tmp->above)
1081 { 1034 {
1082 /* This could be made additive I guess (two lights better than 1035 // Lights are additive, up to MAX_LIGHT_RADIUS, see los.C)
1083 * one). But if so, it shouldn't be a simple additive - 2
1084 * light bulbs do not illuminate twice as far as once since
1085 * it is a dissapation factor that is cubed.
1086 */
1087 if (tmp->glow_radius > light)
1088 light = tmp->glow_radius; 1036 light += tmp->glow_radius;
1089 1037
1090 /* This call is needed in order to update objects the player 1038 /* This call is needed in order to update objects the player
1091 * is standing in that have animations (ie, grass, fire, etc). 1039 * is standing in that have animations (ie, grass, fire, etc).
1092 * However, it also causes the look window to be re-drawn 1040 * However, it also causes the look window to be re-drawn
1093 * 3 times each time the player moves, because many of the 1041 * 3 times each time the player moves, because many of the
1094 * functions the move_player calls eventualy call this. 1042 * functions the move_player calls eventualy call this.
1095 * 1043 *
1096 * Always put the player down for drawing. 1044 * Always put the player down for drawing.
1097 */ 1045 */
1098 if (!tmp->invisible) 1046 if (expect_true (!tmp->invisible))
1099 { 1047 {
1100 if ((tmp->type == PLAYER || QUERY_FLAG (tmp, FLAG_MONSTER))) 1048 if (expect_false (tmp->type == PLAYER || tmp->flag [FLAG_MONSTER]))
1101 top = tmp; 1049 top = tmp;
1102 else if (QUERY_FLAG (tmp, FLAG_IS_FLOOR)) 1050 else if (expect_false (tmp->flag [FLAG_IS_FLOOR]))
1103 { 1051 {
1104 /* If we got a floor, that means middle and top were below it, 1052 /* If we got a floor, that means middle and top were below it,
1105 * so should not be visible, so we clear them. 1053 * so should not be visible, so we clear them.
1106 */ 1054 */
1107 middle = 0; 1055 middle = 0;
1108 top = 0; 1056 top = 0;
1109 floor = tmp; 1057 floor = tmp;
1058 volume = 0;
1059 items = 0;
1110 } 1060 }
1111 /* Flag anywhere have high priority */ 1061 else
1112 else if (QUERY_FLAG (tmp, FLAG_SEE_ANYWHERE))
1113 { 1062 {
1063 if (expect_true (!tmp->flag [FLAG_NO_PICK]))
1064 {
1065 ++items;
1066 volume += tmp->volume ();
1067 }
1068
1069 /* Flag anywhere have high priority */
1070 if (expect_false (tmp->flag [FLAG_SEE_ANYWHERE]))
1071 anywhere = tmp;
1072
1073 /* Find the highest visible face around. If equal
1074 * visibilities, we still want the one nearer to the
1075 * top
1076 */
1077 if (expect_false (::faces [tmp->face].visibility >= middle_visibility))
1078 {
1079 middle_visibility = ::faces [tmp->face].visibility;
1114 middle = tmp; 1080 middle = tmp;
1115 anywhere = 1; 1081 }
1116 } 1082 }
1117 /* Find the highest visible face around. If equal
1118 * visibilities, we still want the one nearer to the
1119 * top
1120 */
1121 else if (!middle || (::faces [tmp->face].visibility > ::faces [middle->face].visibility && !anywhere))
1122 middle = tmp;
1123 }
1124
1125 if (tmp == tmp->above)
1126 {
1127 LOG (llevError, "Error in structure of map\n");
1128 exit (-1);
1129 } 1083 }
1130 1084
1131 move_slow |= tmp->move_slow; 1085 move_slow |= tmp->move_slow;
1132 move_block |= tmp->move_block; 1086 move_block |= tmp->move_block;
1133 move_on |= tmp->move_on; 1087 move_on |= tmp->move_on;
1134 move_off |= tmp->move_off; 1088 move_off |= tmp->move_off;
1135 move_allow |= tmp->move_allow; 1089 move_allow |= tmp->move_allow;
1136 1090
1137 if (QUERY_FLAG (tmp, FLAG_BLOCKSVIEW)) flags |= P_BLOCKSVIEW; 1091 allflags |= tmp->flag;
1138 if (QUERY_FLAG (tmp, FLAG_NO_MAGIC)) flags |= P_NO_MAGIC; 1092
1139 if (tmp->type == PLAYER) flags |= P_PLAYER; 1093 if (tmp->type == PLAYER) flags |= P_PLAYER;
1140 if (tmp->type == SAFE_GROUND) flags |= P_SAFE; 1094 if (tmp->type == SAFE_GROUND) flags |= P_SAFE;
1141 if (QUERY_FLAG (tmp, FLAG_ALIVE)) flags |= P_IS_ALIVE;
1142 if (QUERY_FLAG (tmp, FLAG_DAMNED)) flags |= P_NO_CLERIC;
1143 } 1095 }
1144 1096
1145 this->light = light; 1097 // FLAG_SEE_ANYWHERE takes precedence
1098 if (anywhere)
1099 middle = anywhere;
1100
1101 // ORing all flags together and checking them here is much faster
1102 if (allflags [FLAG_BLOCKSVIEW]) flags |= P_BLOCKSVIEW;
1103 if (allflags [FLAG_NO_MAGIC] ) flags |= P_NO_MAGIC;
1104 if (allflags [FLAG_ALIVE] ) flags |= P_IS_ALIVE;
1105 if (allflags [FLAG_DAMNED] ) flags |= P_NO_CLERIC;
1106
1107 this->light = min (light, MAX_LIGHT_RADIUS);
1146 this->flags_ = flags; 1108 this->flags_ = flags;
1147 this->move_block = move_block & ~move_allow; 1109 this->move_block = move_block & ~move_allow;
1148 this->move_on = move_on; 1110 this->move_on = move_on;
1149 this->move_off = move_off; 1111 this->move_off = move_off;
1150 this->move_slow = move_slow; 1112 this->move_slow = move_slow;
1113 this->volume_ = (volume + 1023) / 1024;
1114 this->items_ = upos_min (items, 65535); // assume nrof <= 2**31
1151 1115
1152 /* At this point, we have a floor face (if there is a floor), 1116 /* At this point, we have a floor face (if there is a floor),
1153 * and the floor is set - we are not going to touch it at 1117 * and the floor is set - we are not going to touch it at
1154 * this point. 1118 * this point.
1155 * middle contains the highest visibility face. 1119 * middle contains the highest visibility face.
… …
1170 * 1) top face is set, need middle to be set. 1134 * 1) top face is set, need middle to be set.
1171 * 2) middle is set, need to set top. 1135 * 2) middle is set, need to set top.
1172 * 3) neither middle or top is set - need to set both. 1136 * 3) neither middle or top is set - need to set both.
1173 */ 1137 */
1174 1138
1175 for (tmp = last; tmp; tmp = tmp->below) 1139 for (object *tmp = last; tmp; tmp = tmp->below)
1176 { 1140 {
1177 /* Once we get to a floor, stop, since we already have a floor object */ 1141 /* Once we get to a floor, stop, since we already have a floor object */
1178 if (QUERY_FLAG (tmp, FLAG_IS_FLOOR)) 1142 if (tmp->flag [FLAG_IS_FLOOR])
1179 break; 1143 break;
1180 1144
1181 /* If two top faces are already set, quit processing */ 1145 /* If two top faces are already set, quit processing */
1182 if (top && middle) 1146 if (top && middle)
1183 break; 1147 break;
… …
1221 faces_obj [1] = middle; 1185 faces_obj [1] = middle;
1222 faces_obj [2] = floor; 1186 faces_obj [2] = floor;
1223#endif 1187#endif
1224} 1188}
1225 1189
1226uint64 1190maptile *
1227mapspace::volume () const 1191maptile::tile_available (int dir, bool load)
1228{ 1192{
1229 uint64 vol = 0; 1193 if (tile_path[dir])
1230
1231 for (object *op = top; op && !op->flag [FLAG_NO_PICK]; op = op->below)
1232 vol += op->volume ();
1233
1234 return vol;
1235}
1236
1237/* this updates the orig_map->tile_map[tile_num] value after finding
1238 * the map. It also takes care of linking back the freshly found
1239 * maps tile_map values if it tiles back to this one. It returns
1240 * the value of orig_map->tile_map[tile_num].
1241 */
1242static inline maptile *
1243find_and_link (maptile *orig_map, int tile_num)
1244{
1245 maptile *mp = orig_map->tile_map [tile_num];
1246
1247 if (!mp)
1248 {
1249 mp = orig_map->find_sync (orig_map->tile_path [tile_num], orig_map);
1250
1251 if (!mp)
1252 {
1253 // emergency mode, manufacture a dummy map, this creates a memleak, but thats fine
1254 LOG (llevError, "FATAL: cannot load tiled map %s from %s, leaking memory and worse!\n",
1255 &orig_map->tile_path[tile_num], &orig_map->path);
1256 mp = new maptile (1, 1);
1257 mp->alloc ();
1258 mp->in_memory = MAP_IN_MEMORY;
1259 }
1260 } 1194 {
1195 if (tile_map[dir] && (!load || tile_map[dir]->in_memory == MAP_ACTIVE))
1196 return tile_map[dir];
1261 1197
1262 int dest_tile = (tile_num + 2) % 4; 1198 if ((tile_map[dir] = find_async (tile_path[dir], this, load)))
1199 return tile_map[dir];
1200 }
1263 1201
1264 orig_map->tile_map [tile_num] = mp;
1265
1266 // optimisation: back-link map to origin map if euclidean
1267 //TODO: non-euclidean maps MUST GO
1268 if (orig_map->tile_map[tile_num]->tile_path[dest_tile] == orig_map->path)
1269 orig_map->tile_map[tile_num]->tile_map[dest_tile] = orig_map;
1270
1271 return mp; 1202 return 0;
1272}
1273
1274static inline void
1275load_and_link (maptile *orig_map, int tile_num)
1276{
1277 find_and_link (orig_map, tile_num)->load_sync ();
1278} 1203}
1279 1204
1280/* this returns TRUE if the coordinates (x,y) are out of 1205/* this returns TRUE if the coordinates (x,y) are out of
1281 * map m. This function also takes into account any 1206 * map m. This function also takes into account any
1282 * tiling considerations, loading adjacant maps as needed. 1207 * tiling considerations, loading adjacant maps as needed.
… …
1295 if (!m) 1220 if (!m)
1296 return 0; 1221 return 0;
1297 1222
1298 if (x < 0) 1223 if (x < 0)
1299 { 1224 {
1300 if (!m->tile_path[3]) 1225 if (!m->tile_available (3))
1301 return 1; 1226 return 1;
1302 1227
1303 if (!m->tile_map[3] || m->tile_map[3]->in_memory != MAP_IN_MEMORY)
1304 find_and_link (m, 3);
1305
1306 return out_of_map (m->tile_map[3], x + m->tile_map[3]->width, y); 1228 return out_of_map (m->tile_map[3], x + m->tile_map[3]->width, y);
1307 } 1229 }
1308 1230
1309 if (x >= m->width) 1231 if (x >= m->width)
1310 { 1232 {
1311 if (!m->tile_path[1]) 1233 if (!m->tile_available (1))
1312 return 1; 1234 return 1;
1313 1235
1314 if (!m->tile_map[1] || m->tile_map[1]->in_memory != MAP_IN_MEMORY)
1315 find_and_link (m, 1);
1316
1317 return out_of_map (m->tile_map[1], x - m->width, y); 1236 return out_of_map (m->tile_map[1], x - m->width, y);
1318 } 1237 }
1319 1238
1320 if (y < 0) 1239 if (y < 0)
1321 { 1240 {
1322 if (!m->tile_path[0]) 1241 if (!m->tile_available (0))
1323 return 1; 1242 return 1;
1324 1243
1325 if (!m->tile_map[0] || m->tile_map[0]->in_memory != MAP_IN_MEMORY)
1326 find_and_link (m, 0);
1327
1328 return out_of_map (m->tile_map[0], x, y + m->tile_map[0]->height); 1244 return out_of_map (m->tile_map[0], x, y + m->tile_map[0]->height);
1329 } 1245 }
1330 1246
1331 if (y >= m->height) 1247 if (y >= m->height)
1332 { 1248 {
1333 if (!m->tile_path[2]) 1249 if (!m->tile_available (2))
1334 return 1; 1250 return 1;
1335
1336 if (!m->tile_map[2] || m->tile_map[2]->in_memory != MAP_IN_MEMORY)
1337 find_and_link (m, 2);
1338 1251
1339 return out_of_map (m->tile_map[2], x, y - m->height); 1252 return out_of_map (m->tile_map[2], x, y - m->height);
1340 } 1253 }
1341 1254
1342 /* Simple case - coordinates are within this local 1255 /* Simple case - coordinates are within this local
… …
1356maptile * 1269maptile *
1357maptile::xy_find (sint16 &x, sint16 &y) 1270maptile::xy_find (sint16 &x, sint16 &y)
1358{ 1271{
1359 if (x < 0) 1272 if (x < 0)
1360 { 1273 {
1361 if (!tile_path[3]) 1274 if (!tile_available (3))
1362 return 0; 1275 return 0;
1363 1276
1364 find_and_link (this, 3);
1365 x += tile_map[3]->width; 1277 x += tile_map[3]->width;
1366 return tile_map[3]->xy_find (x, y); 1278 return tile_map[3]->xy_find (x, y);
1367 } 1279 }
1368 1280
1369 if (x >= width) 1281 if (x >= width)
1370 { 1282 {
1371 if (!tile_path[1]) 1283 if (!tile_available (1))
1372 return 0; 1284 return 0;
1373 1285
1374 find_and_link (this, 1);
1375 x -= width; 1286 x -= width;
1376 return tile_map[1]->xy_find (x, y); 1287 return tile_map[1]->xy_find (x, y);
1377 } 1288 }
1378 1289
1379 if (y < 0) 1290 if (y < 0)
1380 { 1291 {
1381 if (!tile_path[0]) 1292 if (!tile_available (0))
1382 return 0; 1293 return 0;
1383 1294
1384 find_and_link (this, 0);
1385 y += tile_map[0]->height; 1295 y += tile_map[0]->height;
1386 return tile_map[0]->xy_find (x, y); 1296 return tile_map[0]->xy_find (x, y);
1387 } 1297 }
1388 1298
1389 if (y >= height) 1299 if (y >= height)
1390 { 1300 {
1391 if (!tile_path[2]) 1301 if (!tile_available (2))
1392 return 0; 1302 return 0;
1393 1303
1394 find_and_link (this, 2);
1395 y -= height; 1304 y -= height;
1396 return tile_map[2]->xy_find (x, y); 1305 return tile_map[2]->xy_find (x, y);
1397 } 1306 }
1398 1307
1399 /* Simple case - coordinates are within this local 1308 /* Simple case - coordinates are within this local
… …
1410adjacent_map (const maptile *map1, const maptile *map2, int *dx, int *dy) 1319adjacent_map (const maptile *map1, const maptile *map2, int *dx, int *dy)
1411{ 1320{
1412 if (!map1 || !map2) 1321 if (!map1 || !map2)
1413 return 0; 1322 return 0;
1414 1323
1415 //TODO: this doesn't actually check corretcly when intermediate maps are not loaded 1324 //TODO: this doesn't actually check correctly when intermediate maps are not loaded
1416 //fix: compare paths instead (this is likely faster, too!) 1325 //fix: compare paths instead (this is likely faster, too!)
1417 if (map1 == map2) 1326 if (map1 == map2)
1418 { 1327 {
1419 *dx = 0; 1328 *dx = 0;
1420 *dy = 0; 1329 *dy = 0;
… …
1521 * 1430 *
1522 * currently, the only flag supported (0x1) is don't translate for 1431 * currently, the only flag supported (0x1) is don't translate for
1523 * closest body part of 'op1' 1432 * closest body part of 'op1'
1524 */ 1433 */
1525void 1434void
1526get_rangevector (object *op1, object *op2, rv_vector * retval, int flags) 1435get_rangevector (object *op1, object *op2, rv_vector *retval, int flags)
1527{ 1436{
1528 if (!adjacent_map (op1->map, op2->map, &retval->distance_x, &retval->distance_y)) 1437 if (!adjacent_map (op1->map, op2->map, &retval->distance_x, &retval->distance_y))
1529 { 1438 {
1530 /* be conservative and fill in _some_ data */ 1439 /* be conservative and fill in _some_ data */
1531 retval->distance = 10000; 1440 retval->distance = 10000;
1532 retval->distance_x = 10000; 1441 retval->distance_x = 10000;
1533 retval->distance_y = 10000; 1442 retval->distance_y = 10000;
1534 retval->direction = 0; 1443 retval->direction = 0;
1535 retval->part = 0; 1444 retval->part = 0;
1536 } 1445 }
1537 else 1446 else
1538 { 1447 {
1539 object *best;
1540
1541 retval->distance_x += op2->x - op1->x; 1448 retval->distance_x += op2->x - op1->x;
1542 retval->distance_y += op2->y - op1->y; 1449 retval->distance_y += op2->y - op1->y;
1543 1450
1544 best = op1; 1451 object *best = op1;
1452
1545 /* If this is multipart, find the closest part now */ 1453 /* If this is multipart, find the closest part now */
1546 if (!(flags & 0x1) && op1->more) 1454 if (!(flags & 1) && op1->more)
1547 { 1455 {
1548 int best_distance = retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y, tmpi; 1456 int best_distance = idistance (retval->distance_x, retval->distance_y);
1549 1457
1550 /* we just take the offset of the piece to head to figure 1458 /* we just take the offset of the piece to head to figure
1551 * distance instead of doing all that work above again 1459 * distance instead of doing all that work above again
1552 * since the distance fields we set above are positive in the 1460 * since the distance fields we set above are positive in the
1553 * same axis as is used for multipart objects, the simply arithmetic 1461 * same axis as is used for multipart objects, the simply arithmetic
1554 * below works. 1462 * below works.
1555 */ 1463 */
1556 for (object *tmp = op1->more; tmp; tmp = tmp->more) 1464 for (object *tmp = op1->more; tmp; tmp = tmp->more)
1557 { 1465 {
1558 tmpi = (op1->x - tmp->x + retval->distance_x) * (op1->x - tmp->x + retval->distance_x) + 1466 int tmpi = idistance (op1->x - tmp->x + retval->distance_x, op1->y - tmp->y + retval->distance_y);
1559 (op1->y - tmp->y + retval->distance_y) * (op1->y - tmp->y + retval->distance_y); 1467
1560 if (tmpi < best_distance) 1468 if (tmpi < best_distance)
1561 { 1469 {
1562 best_distance = tmpi; 1470 best_distance = tmpi;
1563 best = tmp; 1471 best = tmp;
1564 } 1472 }
1565 } 1473 }
1566 1474
1567 if (best != op1) 1475 if (best != op1)
1568 { 1476 {
1569 retval->distance_x += op1->x - best->x; 1477 retval->distance_x += op1->x - best->x;
1570 retval->distance_y += op1->y - best->y; 1478 retval->distance_y += op1->y - best->y;
1571 } 1479 }
1572 } 1480 }
1573 1481
1574 retval->part = best; 1482 retval->part = best;
1575 retval->distance = upos_max (abs (retval->distance_x), abs (retval->distance_y)); 1483 retval->distance = upos_max (abs (retval->distance_x), abs (retval->distance_y));
1576 retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y); 1484 retval->direction = find_dir_2 (retval->distance_x, retval->distance_y);
1577 } 1485 }
1578} 1486}
1579 1487
1580/* this is basically the same as get_rangevector above, but instead of 1488/* this is basically the same as get_rangevector above, but instead of
1581 * the first parameter being an object, it instead is the map 1489 * the first parameter being an object, it instead is the map
… …
1591get_rangevector_from_mapcoord (const maptile *m, int x, int y, const object *op2, rv_vector *retval, int flags) 1499get_rangevector_from_mapcoord (const maptile *m, int x, int y, const object *op2, rv_vector *retval, int flags)
1592{ 1500{
1593 if (!adjacent_map (m, op2->map, &retval->distance_x, &retval->distance_y)) 1501 if (!adjacent_map (m, op2->map, &retval->distance_x, &retval->distance_y))
1594 { 1502 {
1595 /* be conservative and fill in _some_ data */ 1503 /* be conservative and fill in _some_ data */
1596 retval->distance = 100000; 1504 retval->distance = 100000;
1597 retval->distance_x = 32767; 1505 retval->distance_x = 32767;
1598 retval->distance_y = 32767; 1506 retval->distance_y = 32767;
1599 retval->direction = 0; 1507 retval->direction = 0;
1600 retval->part = 0; 1508 retval->part = 0;
1601 } 1509 }
1602 else 1510 else
1603 { 1511 {
1604 retval->distance_x += op2->x - x; 1512 retval->distance_x += op2->x - x;
1605 retval->distance_y += op2->y - y; 1513 retval->distance_y += op2->y - y;
1606 1514
1607 retval->part = NULL; 1515 retval->part = 0;
1608 retval->distance = idistance (retval->distance_x, retval->distance_y); 1516 retval->distance = upos_max (abs (retval->distance_x), abs (retval->distance_y));
1609 retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y); 1517 retval->direction = find_dir_2 (retval->distance_x, retval->distance_y);
1610 } 1518 }
1611} 1519}
1612 1520
1613/* Returns true of op1 and op2 are effectively on the same map 1521/* Returns true of op1 and op2 are effectively on the same map
1614 * (as related to map tiling). Note that this looks for a path from 1522 * (as related to map tiling). Note that this looks for a path from
… …
1624 int dx, dy; 1532 int dx, dy;
1625 1533
1626 return adjacent_map (op1->map, op2->map, &dx, &dy); 1534 return adjacent_map (op1->map, op2->map, &dx, &dy);
1627} 1535}
1628 1536
1537//-GPL
1538
1629object * 1539object *
1630maptile::insert (object *op, int x, int y, object *originator, int flags) 1540maptile::insert (object *op, int x, int y, object *originator, int flags)
1631{ 1541{
1632 if (!op->flag [FLAG_REMOVED])
1633 op->remove ();
1634
1635 return insert_ob_in_map_at (op, this, originator, flags, x, y); 1542 return insert_ob_in_map_at (op, this, originator, flags, x, y);
1636} 1543}
1637 1544
1638region * 1545region *
1639maptile::region (int x, int y) const 1546maptile::region (int x, int y) const
… …
1648 return default_region; 1555 return default_region;
1649 1556
1650 return ::region::default_region (); 1557 return ::region::default_region ();
1651} 1558}
1652 1559
1560//+GPL
1561
1653/* picks a random object from a style map. 1562/* picks a random object from a style map.
1654 * Redone by MSW so it should be faster and not use static
1655 * variables to generate tables.
1656 */ 1563 */
1657object * 1564object *
1658maptile::pick_random_object () const 1565maptile::pick_random_object (rand_gen &gen) const
1659{ 1566{
1660 /* while returning a null object will result in a crash, that 1567 /* while returning a null object will result in a crash, that
1661 * is actually preferable to an infinite loop. That is because 1568 * is actually preferable to an infinite loop. That is because
1662 * most servers will automatically restart in case of crash. 1569 * most servers will automatically restart in case of crash.
1663 * Change the logic on getting the random space - shouldn't make 1570 * Change the logic on getting the random space - shouldn't make
1664 * any difference, but this seems clearer to me. 1571 * any difference, but this seems clearer to me.
1665 */ 1572 */
1666 for (int i = 1000; --i;) 1573 for (int i = 1000; --i;)
1667 { 1574 {
1668 object *pick = at (rndm (width), rndm (height)).bot; 1575 object *pick = at (gen (width), gen (height)).bot;
1669 1576
1670 // do not prefer big monsters just because they are big. 1577 // must be head: do not prefer big monsters just because they are big.
1671 if (pick && pick->head_ () == pick) 1578 if (pick && pick->is_head ())
1672 return pick->head_ (); 1579 return pick;
1673 } 1580 }
1674 1581
1675 // instead of crashing in the unlikely(?) case, try to return *something* 1582 // instead of crashing in the unlikely(?) case, try to return *something*
1676 return get_archetype ("blocked"); 1583 return archetype::find (shstr_bug);
1677} 1584}
1678 1585
1586//-GPL
1587
1588void
1589maptile::play_sound (faceidx sound, int x, int y) const
1590{
1591 if (!sound)
1592 return;
1593
1594 for_all_players_on_map (pl, this)
1595 if (client *ns = pl->ns)
1596 {
1597 int dx = x - pl->ob->x;
1598 int dy = y - pl->ob->y;
1599
1600 int distance = idistance (dx, dy);
1601
1602 if (distance <= MAX_SOUND_DISTANCE)
1603 ns->play_sound (sound, dx, dy);
1604 }
1605}
1606
1607void
1608maptile::say_msg (const char *msg, int x, int y) const
1609{
1610 for_all_players (pl)
1611 if (client *ns = pl->ns)
1612 {
1613 int dx = x - pl->ob->x;
1614 int dy = y - pl->ob->y;
1615
1616 int distance = idistance (dx, dy);
1617
1618 if (distance <= MAX_SOUND_DISTANCE)
1619 ns->send_msg (NDI_GREY | NDI_DEF, SAY_CHANNEL, msg);
1620 }
1621}
1622
1623dynbuf mapwalk_buf (sizeof (maprect) * 25, sizeof (maprect) * 25);
1624
1625static void
1626split_to_tiles (dynbuf &buf, maptile *m, int x0, int y0, int x1, int y1, int dx, int dy)
1627{
1628 // clip to map to the left
1629 if (x0 < 0)
1630 {
1631 if (maptile *tile = m->tile_available (TILE_LEFT, 1))
1632 split_to_tiles (buf, tile, x0 + tile->width, y0, min (x1 + tile->width, tile->width), y1, dx - tile->width, dy);
1633
1634 if (x1 < 0) // entirely to the left
1635 return;
1636
1637 x0 = 0;
1638 }
1639
1640 // clip to map to the right
1641 if (x1 > m->width)
1642 {
1643 if (maptile *tile = m->tile_available (TILE_RIGHT, 1))
1644 split_to_tiles (buf, tile, max (x0 - m->width, 0), y0, x1 - m->width, y1, dx + m->width, dy);
1645
1646 if (x0 > m->width) // entirely to the right
1647 return;
1648
1649 x1 = m->width;
1650 }
1651
1652 // clip to map above
1653 if (y0 < 0)
1654 {
1655 if (maptile *tile = m->tile_available (TILE_UP, 1))
1656 split_to_tiles (buf, tile, x0, y0 + tile->height, x1, min (y1 + tile->height, tile->height), dx, dy - tile->height);
1657
1658 if (y1 < 0) // entirely above
1659 return;
1660
1661 y0 = 0;
1662 }
1663
1664 // clip to map below
1665 if (y1 > m->height)
1666 {
1667 if (maptile *tile = m->tile_available (TILE_DOWN, 1))
1668 split_to_tiles (buf, tile, x0, max (y0 - m->height, 0), x1, y1 - m->height, dx, dy + m->height);
1669
1670 if (y0 > m->height) // entirely below
1671 return;
1672
1673 y1 = m->height;
1674 }
1675
1676 // if we get here, the rect is within the current map
1677 maprect *r = (maprect *)buf.alloc (sizeof (maprect));
1678
1679 r->m = m;
1680 r->x0 = x0;
1681 r->y0 = y0;
1682 r->x1 = x1;
1683 r->y1 = y1;
1684 r->dx = dx;
1685 r->dy = dy;
1686}
1687
1688maprect *
1689maptile::split_to_tiles (dynbuf &buf, int x0, int y0, int x1, int y1)
1690{
1691 buf.clear ();
1692
1693 ::split_to_tiles (buf, this, x0, y0, x1, y1, 0, 0);
1694
1695 // add end marker
1696 maprect *r = (maprect *)buf.alloc (sizeof (maprect));
1697 r->m = 0;
1698
1699 return (maprect *)buf.linearise ();
1700}
1701

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