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Comparing deliantra/server/common/map.C (file contents):
Revision 1.61 by root, Sun Dec 31 17:17:22 2006 UTC vs.
Revision 1.71 by pippijn, Sat Jan 6 14:42:29 2007 UTC

1/* 1/*
2 CrossFire, A Multiplayer game for X-windows 2 CrossFire, A Multiplayer game for X-windows
3 3
4 Copyright (C) 2005, 2006, 2007 Marc Lehmann & Crossfire+ Development Team
4 Copyright (C) 2001-2003 Mark Wedel & Crossfire Development Team 5 Copyright (C) 2001-2003 Mark Wedel & Crossfire Development Team
5 Copyright (C) 1992 Frank Tore Johansen 6 Copyright (C) 1992 Frank Tore Johansen
6 7
7 This program is free software; you can redistribute it and/or modify 8 This program 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
36 * it really should be called create_mapname 37 * it really should be called create_mapname
37 */ 38 */
38const char * 39const char *
39create_pathname (const char *name) 40create_pathname (const char *name)
40{ 41{
41 static char buf[MAX_BUF]; 42 static char buf[8192];
42
43 /* Why? having extra / doesn't confuse unix anyplace? Dependancies
44 * someplace else in the code? msw 2-17-97
45 */
46 if (*name == '/')
47 sprintf (buf, "%s/%s%s", settings.datadir, settings.mapdir, name);
48 else
49 sprintf (buf, "%s/%s/%s", settings.datadir, settings.mapdir, name); 43 snprintf (buf, sizeof (buf), "%s/%s/%s", settings.datadir, settings.mapdir, name);
50 return (buf); 44 return buf;
51}
52
53/*
54 * same as create_pathname, but for the overlay maps.
55 */
56const char *
57create_overlay_pathname (const char *name)
58{
59 static char buf[MAX_BUF];
60
61 /* Why? having extra / doesn't confuse unix anyplace? Dependancies
62 * someplace else in the code? msw 2-17-97
63 */
64 if (*name == '/')
65 sprintf (buf, "%s/%s%s", settings.localdir, settings.mapdir, name);
66 else
67 sprintf (buf, "%s/%s/%s", settings.localdir, settings.mapdir, name);
68 return (buf);
69}
70
71/*
72 * same as create_pathname, but for the template maps.
73 */
74const char *
75create_template_pathname (const char *name)
76{
77 static char buf[MAX_BUF];
78
79 /* Why? having extra / doesn't confuse unix anyplace? Dependancies
80 * someplace else in the code? msw 2-17-97
81 */
82 if (*name == '/')
83 sprintf (buf, "%s/%s%s", settings.localdir, settings.templatedir, name);
84 else
85 sprintf (buf, "%s/%s/%s", settings.localdir, settings.templatedir, name);
86 return (buf);
87}
88
89/*
90 * This makes absolute path to the itemfile where unique objects
91 * will be saved. Converts '/' to '@'. I think it's essier maintain
92 * files than full directory structure, but if this is problem it can
93 * be changed.
94 */
95static const char *
96create_items_path (const char *s)
97{
98 static char buf[MAX_BUF];
99 char *t;
100
101 if (*s == '/')
102 s++;
103
104 sprintf (buf, "%s/%s/", settings.localdir, settings.uniquedir);
105
106 for (t = buf + strlen (buf); *s; s++, t++)
107 if (*s == '/')
108 *t = '@';
109 else
110 *t = *s;
111 *t = 0;
112 return (buf);
113} 45}
114 46
115/* 47/*
116 * This function checks if a file with the given path exists. 48 * This function checks if a file with the given path exists.
117 * -1 is returned if it fails, otherwise the mode of the file 49 * -1 is returned if it fails, otherwise the mode of the file
398 * carrying. 330 * carrying.
399 */ 331 */
400 sum_weight (container); 332 sum_weight (container);
401} 333}
402 334
335void
336maptile::set_object_flag (int flag, int value)
337{
338 if (!spaces)
339 return;
340
341 for (mapspace *ms = spaces + size (); ms-- > spaces; )
342 for (object *tmp = ms->bot; tmp; tmp = tmp->above)
343 tmp->flag [flag] = value;
344}
345
403/* link_multipart_objects go through all the objects on the map looking 346/* link_multipart_objects go through all the objects on the map looking
404 * for objects whose arch says they are multipart yet according to the 347 * for objects whose arch says they are multipart yet according to the
405 * info we have, they only have the head (as would be expected when 348 * info we have, they only have the head (as would be expected when
406 * they are saved). We do have to look for the old maps that did save 349 * they are saved). We do have to look for the old maps that did save
407 * the more sections and not re-add sections for them. 350 * the more sections and not re-add sections for them.
545} 488}
546 489
547bool 490bool
548maptile::save_objects (object_freezer &freezer, int flags) 491maptile::save_objects (object_freezer &freezer, int flags)
549{ 492{
493 static int cede_count = 0;
494
550 if (flags & IO_HEADER) 495 if (flags & IO_HEADER)
551 save_header (freezer); 496 save_header (freezer);
552 497
553 if (!spaces) 498 if (!spaces)
554 return false; 499 return false;
555 500
556 for (int i = 0; i < size (); ++i) 501 for (int i = 0; i < size (); ++i)
557 { 502 {
503 if (cede_count >= 500)
504 {
505 cede_count = 0;
506 coroapi::cede ();
507 }
508
558 int unique = 0; 509 int unique = 0;
559 for (object *op = spaces [i].bot; op; op = op->above) 510 for (object *op = spaces [i].bot; op; op = op->above)
560 { 511 {
512 // count per-object, but cede only when modification-safe
513 cede_count++;
514
561 if (op->flag [FLAG_UNIQUE] && op->flag [FLAG_IS_FLOOR]) 515 if (op->flag [FLAG_UNIQUE] && op->flag [FLAG_IS_FLOOR])
562 unique = 1; 516 unique = 1;
563 517
564 if (!op->can_map_save ()) 518 if (!op->can_map_save ())
565 continue; 519 continue;
778 * MSW 2001-07-01 732 * MSW 2001-07-01
779 */ 733 */
780bool 734bool
781maptile::load_header (object_thawer &thawer) 735maptile::load_header (object_thawer &thawer)
782{ 736{
783 char buf[HUGE_BUF], msgbuf[HUGE_BUF], maplorebuf[HUGE_BUF], *key = NULL, *value, *end;
784 int msgpos = 0;
785 int maplorepos = 0;
786
787 for (;;) 737 for (;;)
788 { 738 {
789 keyword kw = thawer.get_kv (); 739 keyword kw = thawer.get_kv ();
790 740
791 switch (kw) 741 switch (kw)
794 LOG (llevError, "%s: end of file while reading map header, aborting header load.\n", &path); 744 LOG (llevError, "%s: end of file while reading map header, aborting header load.\n", &path);
795 return false; 745 return false;
796 746
797 case KW_end: 747 case KW_end:
798 return true; 748 return true;
749
750 default:
751 case KW_ERROR:
752 LOG (llevError, "%s: skipping errornous line (%s) while reading map header.\n", &path, thawer.last_keyword);
753 break;
799 754
800 case KW_msg: 755 case KW_msg:
801 thawer.get_ml (KW_endmsg, msg); 756 thawer.get_ml (KW_endmsg, msg);
802 break; 757 break;
803 758
854 809
855 case KW_tile_path_1: thawer.get (tile_path [0]); break; 810 case KW_tile_path_1: thawer.get (tile_path [0]); break;
856 case KW_tile_path_2: thawer.get (tile_path [1]); break; 811 case KW_tile_path_2: thawer.get (tile_path [1]); break;
857 case KW_tile_path_3: thawer.get (tile_path [2]); break; 812 case KW_tile_path_3: thawer.get (tile_path [2]); break;
858 case KW_tile_path_4: thawer.get (tile_path [3]); break; 813 case KW_tile_path_4: thawer.get (tile_path [3]); break;
859
860 default:
861 LOG (llevError, "%s: skipping unknown key in map header: %s\n", &path, keyword_str [kw]);
862 break;
863 } 814 }
864 } 815 }
865 816
866 abort (); 817 abort ();
867} 818}
957 if (tile_path [0]) MAP_OUT2 (tile_path_1, tile_path [0]); 908 if (tile_path [0]) MAP_OUT2 (tile_path_1, tile_path [0]);
958 if (tile_path [1]) MAP_OUT2 (tile_path_2, tile_path [1]); 909 if (tile_path [1]) MAP_OUT2 (tile_path_2, tile_path [1]);
959 if (tile_path [2]) MAP_OUT2 (tile_path_3, tile_path [2]); 910 if (tile_path [2]) MAP_OUT2 (tile_path_3, tile_path [2]);
960 if (tile_path [3]) MAP_OUT2 (tile_path_4, tile_path [3]); 911 if (tile_path [3]) MAP_OUT2 (tile_path_4, tile_path [3]);
961 912
913 freezer.put (this);
962 freezer.put (KW_end); 914 freezer.put (KW_end);
963 915
964 return true; 916 return true;
965} 917}
966 918
1283 1235
1284 /* If two top faces are already set, quit processing */ 1236 /* If two top faces are already set, quit processing */
1285 if ((top != blank_face) && (middle != blank_face)) 1237 if ((top != blank_face) && (middle != blank_face))
1286 break; 1238 break;
1287 1239
1288 /* Only show visible faces, unless its the editor - show all */ 1240 /* Only show visible faces */
1289 if (!tmp->invisible || editor) 1241 if (!tmp->invisible)
1290 { 1242 {
1291 /* Fill in top if needed */ 1243 /* Fill in top if needed */
1292 if (top == blank_face) 1244 if (top == blank_face)
1293 { 1245 {
1294 top = tmp->face; 1246 top = tmp->face;
1324 faces [0] = top; faces_obj [0] = top != blank_face ? top_obj : 0; 1276 faces [0] = top; faces_obj [0] = top != blank_face ? top_obj : 0;
1325 faces [1] = middle; faces_obj [1] = middle != blank_face ? middle_obj : 0; 1277 faces [1] = middle; faces_obj [1] = middle != blank_face ? middle_obj : 0;
1326 faces [2] = floor; faces_obj [2] = floor != blank_face ? floor_obj : 0; 1278 faces [2] = floor; faces_obj [2] = floor != blank_face ? floor_obj : 0;
1327} 1279}
1328 1280
1329/* this updates the orig_map->tile_map[tile_num] value after loading 1281/* this updates the orig_map->tile_map[tile_num] value after finding
1330 * the map. It also takes care of linking back the freshly loaded 1282 * the map. It also takes care of linking back the freshly found
1331 * maps tile_map values if it tiles back to this one. It returns 1283 * maps tile_map values if it tiles back to this one. It returns
1332 * the value of orig_map->tile_map[tile_num]. It really only does this 1284 * the value of orig_map->tile_map[tile_num].
1333 * so that it is easier for calling functions to verify success.
1334 */ 1285 */
1335static maptile * 1286static inline maptile *
1336load_and_link_tiled_map (maptile *orig_map, int tile_num) 1287find_and_link (maptile *orig_map, int tile_num)
1337{ 1288{
1289 maptile *mp = orig_map->tile_map [tile_num];
1290
1291 if (!mp)
1292 {
1338 maptile *mp = orig_map->load_map_sync (orig_map->tile_path [tile_num], orig_map); 1293 mp = orig_map->find_sync (orig_map->tile_path [tile_num], orig_map);
1339 1294
1340 if (!mp || mp->in_memory != MAP_IN_MEMORY) 1295 if (!mp)
1341 { 1296 {
1342 // emergency mode, manufacture a dummy map, this creates a memleak, but thats fine 1297 // emergency mode, manufacture a dummy map, this creates a memleak, but thats fine
1343 LOG (llevError, "FATAL: cannot load tiled map %s from %s, leaking memory and worse!\n", 1298 LOG (llevError, "FATAL: cannot load tiled map %s from %s, leaking memory and worse!\n",
1344 &orig_map->tile_path[tile_num], &orig_map->path); 1299 &orig_map->tile_path[tile_num], &orig_map->path);
1345 mp = new maptile (1, 1); 1300 mp = new maptile (1, 1);
1346 mp->alloc (); 1301 mp->alloc ();
1347 mp->in_memory = MAP_IN_MEMORY; 1302 mp->in_memory = MAP_IN_MEMORY;
1303 }
1348 } 1304 }
1349 1305
1350 int dest_tile = (tile_num + 2) % 4; 1306 int dest_tile = (tile_num + 2) % 4;
1351 1307
1352 orig_map->tile_map[tile_num] = mp; 1308 orig_map->tile_map [tile_num] = mp;
1353 1309
1354 // optimisation: back-link map to origin map if euclidean 1310 // optimisation: back-link map to origin map if euclidean
1355 //TODO: non-euclidean maps MUST GO 1311 //TODO: non-euclidean maps MUST GO
1356 if (orig_map->tile_map[tile_num]->tile_path[dest_tile] == orig_map->path) 1312 if (orig_map->tile_map[tile_num]->tile_path[dest_tile] == orig_map->path)
1357 orig_map->tile_map[tile_num]->tile_map[dest_tile] = orig_map; 1313 orig_map->tile_map[tile_num]->tile_map[dest_tile] = orig_map;
1358 1314
1359 return mp; 1315 return mp;
1316}
1317
1318static inline void
1319load_and_link (maptile *orig_map, int tile_num)
1320{
1321 find_and_link (orig_map, tile_num)->load_sync ();
1360} 1322}
1361 1323
1362/* this returns TRUE if the coordinates (x,y) are out of 1324/* this returns TRUE if the coordinates (x,y) are out of
1363 * map m. This function also takes into account any 1325 * map m. This function also takes into account any
1364 * tiling considerations, loading adjacant maps as needed. 1326 * tiling considerations, loading adjacant maps as needed.
1381 { 1343 {
1382 if (!m->tile_path[3]) 1344 if (!m->tile_path[3])
1383 return 1; 1345 return 1;
1384 1346
1385 if (!m->tile_map[3] || m->tile_map[3]->in_memory != MAP_IN_MEMORY) 1347 if (!m->tile_map[3] || m->tile_map[3]->in_memory != MAP_IN_MEMORY)
1386 load_and_link_tiled_map (m, 3); 1348 find_and_link (m, 3);
1387 1349
1388 return out_of_map (m->tile_map[3], x + m->tile_map[3]->width, y); 1350 return out_of_map (m->tile_map[3], x + m->tile_map[3]->width, y);
1389 } 1351 }
1390 1352
1391 if (x >= m->width) 1353 if (x >= m->width)
1392 { 1354 {
1393 if (!m->tile_path[1]) 1355 if (!m->tile_path[1])
1394 return 1; 1356 return 1;
1395 1357
1396 if (!m->tile_map[1] || m->tile_map[1]->in_memory != MAP_IN_MEMORY) 1358 if (!m->tile_map[1] || m->tile_map[1]->in_memory != MAP_IN_MEMORY)
1397 load_and_link_tiled_map (m, 1); 1359 find_and_link (m, 1);
1398 1360
1399 return out_of_map (m->tile_map[1], x - m->width, y); 1361 return out_of_map (m->tile_map[1], x - m->width, y);
1400 } 1362 }
1401 1363
1402 if (y < 0) 1364 if (y < 0)
1403 { 1365 {
1404 if (!m->tile_path[0]) 1366 if (!m->tile_path[0])
1405 return 1; 1367 return 1;
1406 1368
1407 if (!m->tile_map[0] || m->tile_map[0]->in_memory != MAP_IN_MEMORY) 1369 if (!m->tile_map[0] || m->tile_map[0]->in_memory != MAP_IN_MEMORY)
1408 load_and_link_tiled_map (m, 0); 1370 find_and_link (m, 0);
1409 1371
1410 return out_of_map (m->tile_map[0], x, y + m->tile_map[0]->height); 1372 return out_of_map (m->tile_map[0], x, y + m->tile_map[0]->height);
1411 } 1373 }
1412 1374
1413 if (y >= m->height) 1375 if (y >= m->height)
1414 { 1376 {
1415 if (!m->tile_path[2]) 1377 if (!m->tile_path[2])
1416 return 1; 1378 return 1;
1417 1379
1418 if (!m->tile_map[2] || m->tile_map[2]->in_memory != MAP_IN_MEMORY) 1380 if (!m->tile_map[2] || m->tile_map[2]->in_memory != MAP_IN_MEMORY)
1419 load_and_link_tiled_map (m, 2); 1381 find_and_link (m, 2);
1420 1382
1421 return out_of_map (m->tile_map[2], x, y - m->height); 1383 return out_of_map (m->tile_map[2], x, y - m->height);
1422 } 1384 }
1423 1385
1424 /* Simple case - coordinates are within this local 1386 /* Simple case - coordinates are within this local
1429 1391
1430/* This is basically the same as out_of_map above, but 1392/* This is basically the same as out_of_map above, but
1431 * instead we return NULL if no map is valid (coordinates 1393 * instead we return NULL if no map is valid (coordinates
1432 * out of bounds and no tiled map), otherwise it returns 1394 * out of bounds and no tiled map), otherwise it returns
1433 * the map as that the coordinates are really on, and 1395 * the map as that the coordinates are really on, and
1434 * updates x and y to be the localized coordinates. 1396 * updates x and y to be the localised coordinates.
1435 * Using this is more efficient of calling out_of_map 1397 * Using this is more efficient of calling out_of_map
1436 * and then figuring out what the real map is 1398 * and then figuring out what the real map is
1437 */ 1399 */
1438maptile * 1400maptile *
1439get_map_from_coord (maptile *m, sint16 *x, sint16 *y) 1401maptile::xy_find (sint16 &x, sint16 &y)
1440{ 1402{
1441 if (*x < 0) 1403 if (x < 0)
1442 { 1404 {
1443 if (!m->tile_path[3]) 1405 if (!tile_path[3])
1444 return 0; 1406 return 0;
1445 1407
1446 if (!m->tile_map[3] || m->tile_map[3]->in_memory != MAP_IN_MEMORY) 1408 find_and_link (this, 3);
1447 load_and_link_tiled_map (m, 3);
1448
1449 *x += m->tile_map[3]->width; 1409 x += tile_map[3]->width;
1450 return (get_map_from_coord (m->tile_map[3], x, y)); 1410 return tile_map[3]->xy_find (x, y);
1451 } 1411 }
1452 1412
1453 if (*x >= m->width) 1413 if (x >= width)
1454 { 1414 {
1455 if (!m->tile_path[1]) 1415 if (!tile_path[1])
1456 return 0; 1416 return 0;
1457 1417
1458 if (!m->tile_map[1] || m->tile_map[1]->in_memory != MAP_IN_MEMORY) 1418 find_and_link (this, 1);
1459 load_and_link_tiled_map (m, 1);
1460
1461 *x -= m->width; 1419 x -= width;
1462 return (get_map_from_coord (m->tile_map[1], x, y)); 1420 return tile_map[1]->xy_find (x, y);
1463 } 1421 }
1464 1422
1465 if (*y < 0) 1423 if (y < 0)
1466 { 1424 {
1467 if (!m->tile_path[0]) 1425 if (!tile_path[0])
1468 return 0; 1426 return 0;
1469 1427
1470 if (!m->tile_map[0] || m->tile_map[0]->in_memory != MAP_IN_MEMORY) 1428 find_and_link (this, 0);
1471 load_and_link_tiled_map (m, 0);
1472
1473 *y += m->tile_map[0]->height; 1429 y += tile_map[0]->height;
1474 return (get_map_from_coord (m->tile_map[0], x, y)); 1430 return tile_map[0]->xy_find (x, y);
1475 } 1431 }
1476 1432
1477 if (*y >= m->height) 1433 if (y >= height)
1478 { 1434 {
1479 if (!m->tile_path[2]) 1435 if (!tile_path[2])
1480 return 0; 1436 return 0;
1481 1437
1482 if (!m->tile_map[2] || m->tile_map[2]->in_memory != MAP_IN_MEMORY) 1438 find_and_link (this, 2);
1483 load_and_link_tiled_map (m, 2);
1484
1485 *y -= m->height; 1439 y -= height;
1486 return (get_map_from_coord (m->tile_map[2], x, y)); 1440 return tile_map[2]->xy_find (x, y);
1487 } 1441 }
1488 1442
1489 /* Simple case - coordinates are within this local 1443 /* Simple case - coordinates are within this local
1490 * map. 1444 * map.
1491 */ 1445 */
1492 return m; 1446 return this;
1493} 1447}
1494 1448
1495/** 1449/**
1496 * Return whether map2 is adjacent to map1. If so, store the distance from 1450 * Return whether map2 is adjacent to map1. If so, store the distance from
1497 * map1 to map2 in dx/dy. 1451 * map1 to map2 in dx/dy.
1500adjacent_map (const maptile *map1, const maptile *map2, int *dx, int *dy) 1454adjacent_map (const maptile *map1, const maptile *map2, int *dx, int *dy)
1501{ 1455{
1502 if (!map1 || !map2) 1456 if (!map1 || !map2)
1503 return 0; 1457 return 0;
1504 1458
1459 //TODO: this doesn't actually check corretcly when intermediate maps are not loaded
1460 //fix: compare paths instead (this is likely faster, too!)
1505 if (map1 == map2) 1461 if (map1 == map2)
1506 { 1462 {
1507 *dx = 0; 1463 *dx = 0;
1508 *dy = 0; 1464 *dy = 0;
1509 } 1465 }
1569 } 1525 }
1570 else 1526 else
1571 return 0; 1527 return 0;
1572 1528
1573 return 1; 1529 return 1;
1530}
1531
1532maptile *
1533maptile::xy_load (sint16 &x, sint16 &y)
1534{
1535 maptile *map = xy_find (x, y);
1536
1537 if (map)
1538 map->load_sync ();
1539
1540 return map;
1541}
1542
1543maptile *
1544get_map_from_coord (maptile *m, sint16 *x, sint16 *y)
1545{
1546 return m->xy_load (*x, *y);
1574} 1547}
1575 1548
1576/* From map.c 1549/* From map.c
1577 * This is used by get_player to determine where the other 1550 * This is used by get_player to determine where the other
1578 * creature is. get_rangevector takes into account map tiling, 1551 * creature is. get_rangevector takes into account map tiling,

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