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Comparing deliantra/server/socket/request.C (file contents):
Revision 1.87 by root, Thu Apr 19 11:12:46 2007 UTC vs.
Revision 1.118 by root, Sun Jul 29 19:11:47 2007 UTC

1/* 1/*
2 * CrossFire, A Multiplayer game for X-windows 2 * This file is part of Crossfire TRT, the Roguelike Realtime MORPG.
3 * 3 *
4 * Copyright (C) 2005, 2006, 2007 Marc Lehmann & Crossfire+ Development Team 4 * Copyright (©) 2005,2006,2007 Marc Alexander Lehmann / Robin Redeker / the Crossfire TRT team
5 * Copyright (C) 2001 Mark Wedel 5 * Copyright (©) 2001,2007 Mark Wedel
6 * Copyright (C) 1992 Frank Tore Johansen 6 * Copyright (©) 1992,2007 Frank Tore Johansen
7 * 7 *
8 * This program is free software; you can redistribute it and/or modify 8 * Crossfire TRT is free software: you can redistribute it and/or modify
9 * 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
10 * the Free Software Foundation; either version 2 of the License, or 10 * the Free Software Foundation, either version 3 of the License, or
11 * (at your option) any later version. 11 * (at your 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 GNU General Public License
19 * along with this program; if not, write to the Free Software 19 * along with this program. If not, see <http://www.gnu.org/licenses/>.
20 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 * 20 *
22 * The author can be reached via e-mail to <crossfire@schmorp.de> 21 * The authors can be reached via e-mail to <crossfire@schmorp.de>
23 */ 22 */
24 23
25/** 24/**
26 * \file 25 * \file
27 * Client handling. 26 * Client handling.
145/** check for map/region change and send new map data */ 144/** check for map/region change and send new map data */
146static void 145static void
147check_map_change (player *pl) 146check_map_change (player *pl)
148{ 147{
149 client &socket = *pl->ns; 148 client &socket = *pl->ns;
150 object *ob = pl->ob; 149 object *ob = pl->observe;
151 char buf[MAX_BUF]; /* eauugggh */
152 150
153 if (socket.current_map != ob->map || socket.force_newmap) 151 if (socket.current_map != ob->map || socket.force_newmap)
154 { 152 {
155 clear_map (pl); 153 clear_map (pl);
156 socket.current_map = ob->map; 154 socket.current_map = ob->map;
159 { 157 {
160 if (ob->map && ob->map->path[0]) 158 if (ob->map && ob->map->path[0])
161 { 159 {
162 int flags = 0; 160 int flags = 0;
163 161
164 if (ob->map->tile_path[0]) 162 if (ob->map->tile_path[0]) flags |= 1;
165 flags |= 1;
166 if (ob->map->tile_path[1]) 163 if (ob->map->tile_path[1]) flags |= 2;
167 flags |= 2;
168 if (ob->map->tile_path[2]) 164 if (ob->map->tile_path[2]) flags |= 4;
169 flags |= 4;
170 if (ob->map->tile_path[3]) 165 if (ob->map->tile_path[3]) flags |= 8;
171 flags |= 8;
172 166
173 snprintf (buf, MAX_BUF, "mapinfo - spatial %d %d %d %d %d %s", 167 socket.send_packet_printf ("mapinfo - spatial %d %d %d %d %d %s",
174 flags, socket.mapx / 2 - ob->x, socket.mapy / 2 - ob->y, ob->map->width, ob->map->height, &ob->map->path); 168 flags, socket.mapx / 2 - ob->x, socket.mapy / 2 - ob->y,
169 ob->map->width, ob->map->height, &ob->map->path);
175 } 170 }
176 else 171 else
177 snprintf (buf, MAX_BUF, "mapinfo current");
178
179 socket.send_packet (buf); 172 socket.send_packet ("mapinfo current");
180 } 173 }
181 } 174 }
182 else if (socket.current_x != ob->x || socket.current_y != ob->y) 175 else if (socket.current_x != ob->x || socket.current_y != ob->y)
183 { 176 {
184 int dx = ob->x - socket.current_x; 177 int dx = ob->x - socket.current_x;
197 socket.current_y = ob->y; 190 socket.current_y = ob->y;
198 191
199 region *reg = ob->region (); 192 region *reg = ob->region ();
200 if (socket.current_region != reg) 193 if (socket.current_region != reg)
201 { 194 {
195 INVOKE_PLAYER (REGION_CHANGE, pl, ARG_REGION (reg), ARG_REGION (socket.current_region));
202 socket.current_region = reg; 196 socket.current_region = reg;
203 socket.send_packet_printf ("drawinfo 0 You are now %s.\n(use whereami for more details)", &reg->longname);
204 } 197 }
205} 198}
206 199
207/** 200/**
208 * RequestInfo is sort of a meta command. There is some specific 201 * RequestInfo is sort of a meta command. There is some specific
209 * request of information, but we call other functions to provide 202 * request of information, but we call other functions to provide
210 * that information. 203 * that information.
211 */ 204 */
212void 205void
213RequestInfo (char *buf, int len, client * ns) 206RequestInfo (char *buf, int len, client *ns)
214{ 207{
215 char *params = NULL, *cp; 208 char *params;
216
217 /* No match */
218 char bigbuf[MAX_BUF];
219 int slen;
220
221 /* Set up replyinfo before we modify any of the buffers - this is used
222 * if we don't find a match.
223 */
224 strcpy (bigbuf, "replyinfo ");
225 slen = strlen (bigbuf);
226 safe_strcat (bigbuf, buf, &slen, MAX_BUF);
227 209
228 /* find the first space, make it null, and update the 210 /* find the first space, make it null, and update the
229 * params pointer. 211 * params pointer.
230 */ 212 */
231 for (cp = buf; *cp != '\0'; cp++) 213 for (params = buf; *params; params++)
232 if (*cp == ' ') 214 if (*params == ' ')
233 { 215 {
234 *cp = '\0';
235 params = cp + 1; 216 *params++ = 0;
236 break; 217 break;
237 } 218 }
238 219
239 if (!strcmp (buf, "image_info")) 220 if (!strcmp (buf, "image_info"))
240 send_image_info (ns, params); 221 send_image_info (ns, params);
243 else if (!strcmp (buf, "skill_info")) 224 else if (!strcmp (buf, "skill_info"))
244 send_skill_info (ns, params); 225 send_skill_info (ns, params);
245 else if (!strcmp (buf, "spell_paths")) 226 else if (!strcmp (buf, "spell_paths"))
246 send_spell_paths (ns, params); 227 send_spell_paths (ns, params);
247 else 228 else
248 ns->send_packet (bigbuf, len); 229 {
230 // undo tokenisation above and send replyinfo with the request unchanged
231 if (*params)
232 *--params = ' ';
233
234 ns->send_packet_printf ("replyinfo %s", buf);
235 }
249} 236}
250 237
251void 238void
252ExtCmd (char *buf, int len, player *pl) 239ExtCmd (char *buf, int len, player *pl)
253{ 240{
325 snprintf (bigbuf, MAX_BUF, "mapinfo %s error", token); 312 snprintf (bigbuf, MAX_BUF, "mapinfo %s error", token);
326 else if (map && map->path[0]) 313 else if (map && map->path[0])
327 { 314 {
328 int flags = 0; 315 int flags = 0;
329 316
330 if (map->tile_path[0]) 317 if (map->tile_path[0]) flags |= 1;
331 flags |= 1;
332 if (map->tile_path[1]) 318 if (map->tile_path[1]) flags |= 2;
333 flags |= 2;
334 if (map->tile_path[2]) 319 if (map->tile_path[2]) flags |= 4;
335 flags |= 4;
336 if (map->tile_path[3]) 320 if (map->tile_path[3]) flags |= 8;
337 flags |= 8;
338 321
339 snprintf (bigbuf, MAX_BUF, "mapinfo %s spatial %d %d %d %d %d %s", token, flags, mapx, mapy, map->width, map->height, &map->path); 322 snprintf (bigbuf, MAX_BUF, "mapinfo %s spatial %d %d %d %d %d %s", token, flags, mapx, mapy, map->width, map->height, &map->path);
340 } 323 }
341 else 324 else
342 snprintf (bigbuf, MAX_BUF, "mapinfo %s nomap", token); 325 snprintf (bigbuf, MAX_BUF, "mapinfo %s nomap", token);
481 464
482 ns->send_packet (cmdback); 465 ns->send_packet (cmdback);
483} 466}
484 467
485/** 468/**
486 * client requested an image. send it rate-limited
487 * before flushing.
488 */
489void
490AskFaceCmd (char *buf, int len, client *ns)
491{
492 ns->askface.push_back (atoi (buf));
493}
494
495/**
496 * Tells client the picture it has to use
497 * to smooth a picture number given as argument.
498 */
499void
500AskSmooth (char *buf, int len, client *ns)
501{
502 ns->send_face (atoi (buf));
503 ns->flush_fx ();
504}
505
506/**
507 * This handles the general commands from the client (ie, north, fire, cast, 469 * This handles the general commands from the client (ie, north, fire, cast,
508 * etc.) 470 * etc.)
509 */ 471 */
510void 472void
511PlayerCmd (char *buf, int len, player *pl) 473PlayerCmd (char *buf, int len, player *pl)
532 * commands. 494 * commands.
533 */ 495 */
534 pl->count = 0; 496 pl->count = 0;
535} 497}
536 498
537
538/** 499/**
539 * This handles the general commands from the client (ie, north, fire, cast, 500 * This handles the general commands from the client (ie, north, fire, cast,
540 * etc.). It is a lot like PlayerCmd above, but is called with the 501 * etc.). It is a lot like PlayerCmd above, but is called with the
541 * 'ncom' method which gives more information back to the client so it 502 * 'ncom' method which gives more information back to the client so it
542 * can throttle. 503 * can throttle.
544void 505void
545NewPlayerCmd (char *buf, int len, player *pl) 506NewPlayerCmd (char *buf, int len, player *pl)
546{ 507{
547 if (len <= 6) 508 if (len <= 6)
548 { 509 {
549 LOG (llevDebug, "Corrupt ncom command <%s> not long enough - discarding\n", buf); 510 LOG (llevDebug, "%s: corrupt ncom command <%s>: not long enough (%d) - discarding\n", pl->ns->host, buf, len);
550 return; 511 return;
551 } 512 }
552 513
553 uint16 cmdid = net_uint16 ((uint8 *)buf); 514 uint16 cmdid = net_uint16 ((uint8 *)buf);
554 sint32 repeat = net_sint32 ((uint8 *)buf + 2); 515 sint32 repeat = net_sint32 ((uint8 *)buf + 2);
611 { 572 {
612 case ST_PLAYING: 573 case ST_PLAYING:
613 LOG (llevError, "Got reply message with ST_PLAYING input state\n"); 574 LOG (llevError, "Got reply message with ST_PLAYING input state\n");
614 break; 575 break;
615 576
616 case ST_CHANGE_CLASS:
617 key_change_class (pl->ob, buf[0]);
618 break;
619
620 case ST_GET_PARTY_PASSWORD: /* Get password for party */ 577 case ST_GET_PARTY_PASSWORD: /* Get password for party */
621 receive_party_password (pl->ob, 13); 578 receive_party_password (pl->ob, 13);
622 break; 579 break;
623 580
624 default: 581 default:
663 620
664 cp = strchr (cp + 1, ' '); 621 cp = strchr (cp + 1, ' ');
665 622
666 if (cp) 623 if (cp)
667 { 624 {
668 assign (ns->version, cp + 1); 625 ns->version = cp + 1;
669 626
670 if (ns->sc_version < 1026) 627 if (ns->sc_version < 1026)
671 ns->send_packet_printf ("drawinfo %d %s", NDI_RED, 628 ns->send_packet_printf ("drawinfo %d %s", NDI_RED,
672 "**** VERSION WARNING ****\n**** CLIENT IS TOO OLD!! UPDATE THE CLIENT!! ****"); 629 "**** VERSION WARNING ****\n**** CLIENT IS TOO OLD!! UPDATE THE CLIENT!! ****");
673 } 630 }
738send_query (client *ns, uint8 flags, const char *text) 695send_query (client *ns, uint8 flags, const char *text)
739{ 696{
740 ns->send_packet_printf ("query %d %s", flags, text ? text : ""); 697 ns->send_packet_printf ("query %d %s", flags, text ? text : "");
741} 698}
742 699
700/**
701 * Get player's current range attack in obuf.
702 */
703static void
704rangetostring (player *pl, char *obuf)
705{
706 dynbuf_text buf;
707
708 if (pl->ranged_ob)
709 buf << " Range" << (pl->ob->current_weapon == pl->ranged_ob ? "*" : "") << ": " << pl->ranged_ob->name;
710
711 if (pl->combat_ob)
712 buf << " Combat" << (pl->ob->current_weapon == pl->combat_ob ? "*" : "") << ": " << pl->combat_ob->name;
713
714#if 0
715 //TODO: remove this when slot system is working, this is only for debugging
716 if (pl->ob->chosen_skill)
717 buf << " Skill*: " << pl->ob->chosen_skill->name;
718#endif
719
720 //TODO: maybe golem should become the current_weapon, quite simply?
721 if (pl->golem)
722 buf << " Golem*: " << pl->golem->name;
723
724 buf << '\0';
725 buf.linearise (obuf);
726}
727
743#define AddIfInt64(Old,New,Type) if (Old != New) {\ 728#define AddIfInt64(Old,New,Type) if (Old != New) {\
744 Old = New; \ 729 Old = New; \
745 sl << uint8 (Type) << uint64 (New); \ 730 sl << uint8 (Type) << uint64 (New); \
746 } 731 }
747 732
753#define AddIfShort(Old,New,Type) if (Old != New) {\ 738#define AddIfShort(Old,New,Type) if (Old != New) {\
754 Old = New; \ 739 Old = New; \
755 sl << uint8 (Type) << uint16 (New); \ 740 sl << uint8 (Type) << uint16 (New); \
756 } 741 }
757 742
758#define AddIfFloat(Old,New,Type) if (Old != New) {\ 743#define AddIfFloat(Old,New,Type,mult) if (Old != New) {\
759 Old = New; \ 744 Old = New; \
760 sl << uint8 (Type) << uint32 (New*FLOAT_MULTI); \ 745 sl << uint8 (Type) << uint32 (New*FLOAT_MULTI*mult); \
761 } 746 }
762 747
763#define AddIfString(Old,New,Type) if (Old == NULL || strcmp(Old,New)) {\ 748#define AddIfString(Old,New,Type) if (Old == NULL || strcmp(Old,New)) {\
764 free(Old); Old = strdup (New);\ 749 free(Old); Old = strdup (New);\
765 sl << uint8 (Type) << data8 (New); \ 750 sl << uint8 (Type) << data8 (New); \
779 764
780 client *ns = pl->ns; 765 client *ns = pl->ns;
781 if (!ns) 766 if (!ns)
782 return; 767 return;
783 768
784 object *ob = pl->ob; 769 object *ob = pl->observe;
785 if (!ob) 770 if (!ob)
786 return; 771 return;
772
773 player *opl = ob->contr ? static_cast<player *>(ob->contr) : pl;
787 774
788 packet sl ("stats"); 775 packet sl ("stats");
789 776
790 AddIfShort (ns->last_stats.hp, ob->stats.hp, CS_STAT_HP); 777 AddIfShort (ns->last_stats.hp, ob->stats.hp, CS_STAT_HP);
791 AddIfShort (ns->last_stats.maxhp, ob->stats.maxhp, CS_STAT_MAXHP); 778 AddIfShort (ns->last_stats.maxhp, ob->stats.maxhp, CS_STAT_MAXHP);
800 AddIfShort (ns->last_stats.Wis, ob->stats.Wis, CS_STAT_WIS); 787 AddIfShort (ns->last_stats.Wis, ob->stats.Wis, CS_STAT_WIS);
801 AddIfShort (ns->last_stats.Pow, ob->stats.Pow, CS_STAT_POW); 788 AddIfShort (ns->last_stats.Pow, ob->stats.Pow, CS_STAT_POW);
802 AddIfShort (ns->last_stats.Cha, ob->stats.Cha, CS_STAT_CHA); 789 AddIfShort (ns->last_stats.Cha, ob->stats.Cha, CS_STAT_CHA);
803 790
804 for (int s = 0; s < NUM_SKILLS; s++) 791 for (int s = 0; s < NUM_SKILLS; s++)
805 if (object *skill = pl->last_skill_ob[s]) 792 if (object *skill = opl->last_skill_ob[s])
806 if (skill->stats.exp != ns->last_skill_exp [s]) 793 if (skill->stats.exp != ns->last_skill_exp [s])
807 { 794 {
808 ns->last_skill_exp [s] = skill->stats.exp; 795 ns->last_skill_exp [s] = skill->stats.exp;
809 796
810 /* Always send along the level if exp changes. This is only 797 /* Always send along the level if exp changes. This is only
818 AddIfInt64 (ns->last_stats.exp, ob->stats.exp, CS_STAT_EXP64); 805 AddIfInt64 (ns->last_stats.exp, ob->stats.exp, CS_STAT_EXP64);
819 AddIfShort (ns->last_level, ob->level, CS_STAT_LEVEL); 806 AddIfShort (ns->last_level, ob->level, CS_STAT_LEVEL);
820 AddIfShort (ns->last_stats.wc, ob->stats.wc, CS_STAT_WC); 807 AddIfShort (ns->last_stats.wc, ob->stats.wc, CS_STAT_WC);
821 AddIfShort (ns->last_stats.ac, ob->stats.ac, CS_STAT_AC); 808 AddIfShort (ns->last_stats.ac, ob->stats.ac, CS_STAT_AC);
822 AddIfShort (ns->last_stats.dam, ob->stats.dam, CS_STAT_DAM); 809 AddIfShort (ns->last_stats.dam, ob->stats.dam, CS_STAT_DAM);
823 AddIfFloat (ns->last_speed, ob->speed, CS_STAT_SPEED); 810 AddIfFloat (ns->last_speed, ob->speed, CS_STAT_SPEED, 1.f/TICK);
824 AddIfShort (ns->last_stats.food, ob->stats.food, CS_STAT_FOOD); 811 AddIfShort (ns->last_stats.food, ob->stats.food, CS_STAT_FOOD);
825 AddIfFloat (ns->last_weapon_sp, pl->weapon_sp, CS_STAT_WEAP_SP); 812 AddIfFloat (ns->last_weapon_sp, pl->weapon_sp, CS_STAT_WEAP_SP, 1.f/TICK);
826 AddIfInt (ns->last_weight_limit, weight_limit[ob->stats.Str], CS_STAT_WEIGHT_LIM); 813 AddIfInt (ns->last_weight_limit, weight_limit[ob->stats.Str], CS_STAT_WEIGHT_LIM);
827 814
828 flags = 0; 815 flags = 0;
829 816
830 if (pl->fire_on) 817 if (opl->fire_on)
831 flags |= SF_FIREON; 818 flags |= SF_FIREON;
832 819
833 if (pl->run_on) 820 if (opl->run_on)
834 flags |= SF_RUNON; 821 flags |= SF_RUNON;
835 822
836 AddIfShort (ns->last_flags, flags, CS_STAT_FLAGS); 823 AddIfShort (ns->last_flags, flags, CS_STAT_FLAGS);
837 824
838 if (ns->sc_version < 1025) 825 if (ns->sc_version < 1025)
852 AddIfInt (ns->last_path_attuned, ob->path_attuned, CS_STAT_SPELL_ATTUNE); 839 AddIfInt (ns->last_path_attuned, ob->path_attuned, CS_STAT_SPELL_ATTUNE);
853 AddIfInt (ns->last_path_repelled, ob->path_repelled, CS_STAT_SPELL_REPEL); 840 AddIfInt (ns->last_path_repelled, ob->path_repelled, CS_STAT_SPELL_REPEL);
854 AddIfInt (ns->last_path_denied, ob->path_denied, CS_STAT_SPELL_DENY); 841 AddIfInt (ns->last_path_denied, ob->path_denied, CS_STAT_SPELL_DENY);
855 } 842 }
856 843
857 rangetostring (ob, buf); /* we want use the new fire & run system in new client */ 844 rangetostring (opl, buf); /* we want use the new fire & run system in new client */
858 AddIfString (ns->stats.range, buf, CS_STAT_RANGE); 845 AddIfString (ns->stats.range, buf, CS_STAT_RANGE);
859 set_title (ob, buf); 846 set_title (ob, buf);
860 AddIfString (ns->stats.title, buf, CS_STAT_TITLE); 847 AddIfString (ns->stats.title, buf, CS_STAT_TITLE);
861 848
862 /* Only send it away if we have some actual data */ 849 /* Only send it away if we have some actual data */
944 931
945 if (!ns.faces_sent[face_num]) 932 if (!ns.faces_sent[face_num])
946 if (ob) 933 if (ob)
947 ns.send_faces (ob); 934 ns.send_faces (ob);
948 else 935 else
949 ns.send_face (face_num); 936 ns.send_face (face_num, 10);
950 937
951 sl << uint16 (face_num); 938 sl << uint16 (face_num);
952 return 1; 939 return 1;
953 } 940 }
954 941
996{ 983{
997 prefetch_surrounding_maps (op->map, 3); 984 prefetch_surrounding_maps (op->map, 3);
998} 985}
999 986
1000/** 987/**
1001 * This function uses the new map1 protocol command to send the map 988 * Draws client map.
1002 * to the client. It is necessary because the old map command supports
1003 * a maximum map size of 15x15.
1004 * This function is much simpler than the old one. This is because
1005 * the old function optimized to send as few face identifiers as possible,
1006 * at the expense of sending more coordinate location (coordinates were
1007 * only 1 byte, faces 2 bytes, so this was a worthwhile savings). Since
1008 * we need 2 bytes for coordinates and 2 bytes for faces, such a trade off
1009 * maps no sense. Instead, we actually really only use 12 bits for coordinates,
1010 * and use the other 4 bits for other informatiion. For full documentation
1011 * of what we send, see the doc/Protocol file.
1012 * I will describe internally what we do:
1013 * the ns->lastmap shows how the map last looked when sent to the client.
1014 * in the lastmap structure, there is a cells array, which is set to the
1015 * maximum viewable size (As set in config.h).
1016 * in the cells, there are faces and a count value.
1017 * we use the count value to hold the darkness value. If -1, then this space
1018 * is not viewable.
1019 * we use faces[0] faces[1] faces[2] to hold what the three layers
1020 * look like.
1021 */ 989 */
1022void 990void
1023draw_client_map1 (object *pl) 991draw_client_map (player *pl)
1024{ 992{
993 object *ob = pl->observe;
994 if (!ob->active)
995 return;
996
997 maptile *plmap = ob->map;
998
999 /* If player is just joining the game, he isn't here yet, so the map
1000 * can get swapped out. If so, don't try to send them a map. All will
1001 * be OK once they really log in.
1002 */
1003 if (!plmap || plmap->in_memory != MAP_IN_MEMORY)
1004 return;
1005
1025 int x, y, ax, ay, startlen, max_x, max_y, oldlen; 1006 int x, y, ax, ay, startlen, max_x, max_y, oldlen;
1026 sint16 nx, ny;
1027 int estartlen, eoldlen; 1007 int estartlen, eoldlen;
1028 uint8 eentrysize; 1008 uint8 eentrysize;
1029 uint16 ewhatstart, ewhatflag; 1009 uint16 ewhatstart, ewhatflag;
1030 uint8 extendedinfos; 1010 uint8 extendedinfos;
1031 maptile *m;
1032 1011
1033 client &socket = *pl->contr->ns;
1034
1035 if (!pl->active)
1036 return;
1037
1038 check_map_change (pl->contr); 1012 check_map_change (pl);
1039 prefetch_surrounding_maps (pl); 1013 prefetch_surrounding_maps (pl->ob);
1014
1015 /* do LOS after calls to update_position */
1016 if (ob != pl->ob)
1017 clear_los (pl);
1018 else if (pl->do_los)
1019 {
1020 update_los (ob);
1021 pl->do_los = 0;
1022 }
1023
1024 /**
1025 * This function uses the new map1 protocol command to send the map
1026 * to the client. It is necessary because the old map command supports
1027 * a maximum map size of 15x15.
1028 * This function is much simpler than the old one. This is because
1029 * the old function optimized to send as few face identifiers as possible,
1030 * at the expense of sending more coordinate location (coordinates were
1031 * only 1 byte, faces 2 bytes, so this was a worthwhile savings). Since
1032 * we need 2 bytes for coordinates and 2 bytes for faces, such a trade off
1033 * maps no sense. Instead, we actually really only use 12 bits for coordinates,
1034 * and use the other 4 bits for other informatiion. For full documentation
1035 * of what we send, see the doc/Protocol file.
1036 * I will describe internally what we do:
1037 * the ns->lastmap shows how the map last looked when sent to the client.
1038 * in the lastmap structure, there is a cells array, which is set to the
1039 * maximum viewable size (As set in config.h).
1040 * in the cells, there are faces and a count value.
1041 * we use the count value to hold the darkness value. If -1, then this space
1042 * is not viewable.
1043 * we use faces[0] faces[1] faces[2] to hold what the three layers
1044 * look like.
1045 */
1046
1047 client &socket = *pl->ns;
1040 1048
1041 packet sl (socket.mapmode == Map1Cmd ? "map1" : "map1a"); 1049 packet sl (socket.mapmode == Map1Cmd ? "map1" : "map1a");
1042 packet esl; 1050 packet esl;
1043 1051
1044 startlen = sl.length (); 1052 startlen = sl.length ();
1068 ay = 0; 1076 ay = 0;
1069 1077
1070 /* We could do this logic as conditionals in the if statement, 1078 /* We could do this logic as conditionals in the if statement,
1071 * but that started to get a bit messy to look at. 1079 * but that started to get a bit messy to look at.
1072 */ 1080 */
1073 max_x = pl->x + (socket.mapx + 1) / 2; 1081 max_x = ob->x + (socket.mapx + 1) / 2;
1074 max_y = pl->y + (socket.mapy + 1) / 2; 1082 max_y = ob->y + (socket.mapy + 1) / 2;
1075 1083
1076 maptile *plmap = pl->map;
1077
1078 for (y = pl->y - socket.mapy / 2; y < max_y; y++, ay++) 1084 for (y = ob->y - socket.mapy / 2; y < max_y; y++, ay++)
1079 { 1085 {
1086 sint16 nx, ny;
1087 maptile *m = 0;
1088
1080 ax = 0; 1089 ax = 0;
1081 for (x = pl->x - socket.mapx / 2; x < max_x; x++, ax++) 1090 for (x = ob->x - socket.mapx / 2; x < max_x; x++, ax++)
1082 { 1091 {
1092 // check to see if we can simply go one right quickly
1093 ++nx;
1094 if (m && nx >= m->width)
1095 m = 0;
1096
1097 if (!m)
1098 {
1099 nx = x; ny = y; m = plmap;
1100
1101 if (!xy_normalise (m, nx, ny))
1102 m = 0;
1103 }
1104
1083 int emask, mask; 1105 int emask, mask;
1084 emask = mask = (ax & 0x3f) << 10 | (ay & 0x3f) << 4; 1106 emask = mask = (ax & 0x3f) << 10 | (ay & 0x3f) << 4;
1085 1107
1086 MapCell &lastcell = socket.lastmap.cells[ax][ay]; 1108 MapCell &lastcell = socket.lastmap.cells[ax][ay];
1087 1109
1088 /* If the coordinates are not valid, or it is too dark to see, 1110 /* If the coordinates are not valid, or it is too dark to see,
1089 * we tell the client as such 1111 * we tell the client as such
1090 */ 1112 */
1091 nx = x;
1092 ny = y;
1093 m = get_map_from_coord (plmap, &nx, &ny);
1094
1095 if (!m) 1113 if (!m)
1096 { 1114 {
1097 /* space is out of map. Update space and clear values 1115 /* space is out of map. Update space and clear values
1098 * if this hasn't already been done. If the space is out 1116 * if this hasn't already been done. If the space is out
1099 * of the map, it shouldn't have a head 1117 * of the map, it shouldn't have a head
1107 continue; 1125 continue;
1108 } 1126 }
1109 1127
1110 m->touch (); 1128 m->touch ();
1111 1129
1112 int d = pl->contr->blocked_los[ax][ay]; 1130 int d = pl->blocked_los[ax][ay];
1113 1131
1114 if (d > 3) 1132 if (d > 3)
1115 { 1133 {
1116 1134
1117 int need_send = 0, count; 1135 int need_send = 0, count;
1180 } 1198 }
1181 1199
1182 lastcell.count = d; 1200 lastcell.count = d;
1183 1201
1184 mapspace &ms = m->at (nx, ny); 1202 mapspace &ms = m->at (nx, ny);
1203 ms.update ();
1185 1204
1186 if (socket.extmap) 1205 if (socket.extmap)
1187 { 1206 {
1188 uint8 stat_hp = 0; 1207 uint8 stat_hp = 0;
1189 uint8 stat_width = 0; 1208 uint8 stat_width = 0;
1199 || QUERY_FLAG (op, FLAG_MONSTER) || QUERY_FLAG (op, FLAG_ALIVE) || QUERY_FLAG (op, FLAG_GENERATOR)) 1218 || QUERY_FLAG (op, FLAG_MONSTER) || QUERY_FLAG (op, FLAG_ALIVE) || QUERY_FLAG (op, FLAG_GENERATOR))
1200 { 1219 {
1201 if (op->stats.maxhp > 0 && (unsigned) op->stats.maxhp > (unsigned) op->stats.hp) 1220 if (op->stats.maxhp > 0 && (unsigned) op->stats.maxhp > (unsigned) op->stats.hp)
1202 { 1221 {
1203 stat_hp = 255 - (op->stats.hp * 255 + 254) / op->stats.maxhp; 1222 stat_hp = 255 - (op->stats.hp * 255 + 254) / op->stats.maxhp;
1204 stat_width = op->arch->tail_x; 1223 stat_width = op->arch->max_x - op->arch->x; //TODO: should be upper-left edge
1205 } 1224 }
1206 } 1225 }
1207 1226
1208 if (op->msg && op->msg[0] == '@') 1227 if (op->msg && op->msg[0] == '@')
1209 flags |= 1; 1228 flags |= 1;
1210 1229
1211 if (op->type == PLAYER && op != pl) 1230 if (op->type == PLAYER && op != ob)
1212 player = op->count; 1231 player = op->count;
1213 } 1232 }
1214 1233
1215 if (lastcell.stat_hp != stat_hp) 1234 if (lastcell.stat_hp != stat_hp)
1216 { 1235 {
1260 1279
1261 /* Middle face */ 1280 /* Middle face */
1262 if (update_space (sl, socket, ms, lastcell, 1)) 1281 if (update_space (sl, socket, ms, lastcell, 1))
1263 mask |= 0x2; 1282 mask |= 0x2;
1264 1283
1265 if (ms.player () == pl 1284 if (ms.player () == ob
1266 && (pl->invisible & (pl->invisible < 50 ? 1 : 7))) 1285 && (ob->invisible & (ob->invisible < 50 ? 1 : 7)))
1267 { 1286 {
1268 // force player to be visible to himself if invisible 1287 // force player to be visible to himself if invisible
1269 if (lastcell.faces[0] != pl->face) 1288 if (lastcell.faces[0] != ob->face)
1270 { 1289 {
1271 lastcell.faces[0] = pl->face; 1290 lastcell.faces[0] = ob->face;
1272 1291
1273 mask |= 0x1; 1292 mask |= 0x1;
1274 sl << uint16 (pl->face); 1293 sl << uint16 (ob->face);
1275 1294
1276 socket.send_faces (pl); 1295 socket.send_faces (ob);
1277 } 1296 }
1278 } 1297 }
1279 /* Top face */ 1298 /* Top face */
1280 else if (update_space (sl, socket, ms, lastcell, 0)) 1299 else if (update_space (sl, socket, ms, lastcell, 0))
1281 mask |= 0x1; 1300 mask |= 0x1;
1282
1283 1301
1284 /* Check to see if we are in fact sending anything for this 1302 /* Check to see if we are in fact sending anything for this
1285 * space by checking the mask. If so, update the mask. 1303 * space by checking the mask. If so, update the mask.
1286 * if not, reset the len to that from before adding the mask 1304 * if not, reset the len to that from before adding the mask
1287 * value, so we don't send those bits. 1305 * value, so we don't send those bits.
1346 socket.send_packet (sl); 1364 socket.send_packet (sl);
1347 socket.sent_scroll = 0; 1365 socket.sent_scroll = 0;
1348 } 1366 }
1349} 1367}
1350 1368
1351/**
1352 * Draws client map.
1353 */
1354void
1355draw_client_map (object *pl)
1356{
1357 int i, j;
1358 sint16 ax, ay; /* ax and ay goes from 0 to max-size of arrays */
1359 int mflags;
1360 struct Map newmap;
1361 maptile *m, *pm;
1362
1363 if (pl->type != PLAYER)
1364 {
1365 LOG (llevError, "draw_client_map called with non player/non eric-server\n");
1366 return;
1367 }
1368
1369 pm = pl->map;
1370
1371 /* If player is just joining the game, he isn't here yet, so the map
1372 * can get swapped out. If so, don't try to send them a map. All will
1373 * be OK once they really log in.
1374 */
1375 if (pm == NULL || pm->in_memory != MAP_IN_MEMORY)
1376 return;
1377
1378 memset (&newmap, 0, sizeof (struct Map));
1379
1380 for (j = (pl->y - pl->contr->ns->mapy / 2); j < (pl->y + (pl->contr->ns->mapy + 1) / 2); j++)
1381 for (i = (pl->x - pl->contr->ns->mapx / 2); i < (pl->x + (pl->contr->ns->mapx + 1) / 2); i++)
1382 {
1383 ax = i;
1384 ay = j;
1385 m = pm;
1386 mflags = get_map_flags (m, &m, ax, ay, &ax, &ay);
1387
1388 if (mflags & P_OUT_OF_MAP)
1389 continue;
1390
1391 /* If a map is visible to the player, we don't want to swap it out
1392 * just to reload it. This should really call something like
1393 * swap_map, but this is much more efficient and 'good enough'
1394 */
1395 if (mflags & P_NEW_MAP)
1396 m->timeout = 50;
1397 }
1398
1399 /* do LOS after calls to update_position */
1400 if (pl->contr->do_los)
1401 {
1402 update_los (pl);
1403 pl->contr->do_los = 0;
1404 }
1405
1406 /* Big maps need a different drawing mechanism to work */
1407 draw_client_map1 (pl);
1408}
1409
1410
1411/*****************************************************************************/ 1369/*****************************************************************************/
1412
1413/* GROS: The following one is used to allow a plugin to send a generic cmd to*/ 1370/* GROS: The following one is used to allow a plugin to send a generic cmd to*/
1414
1415/* a player. Of course, the client need to know the command to be able to */ 1371/* a player. Of course, the client need to know the command to be able to */
1416
1417/* manage it ! */ 1372/* manage it ! */
1418
1419/*****************************************************************************/ 1373/*****************************************************************************/
1420void 1374void
1421send_plugin_custom_message (object *pl, char *buf) 1375send_plugin_custom_message (object *pl, char *buf)
1422{ 1376{
1423 pl->contr->ns->send_packet (buf); 1377 pl->contr->ns->send_packet (buf);
1434 sl << "replyinfo skill_info\n"; 1388 sl << "replyinfo skill_info\n";
1435 1389
1436 for (int i = 1; i < NUM_SKILLS; i++) 1390 for (int i = 1; i < NUM_SKILLS; i++)
1437 sl.printf ("%d:%s\n", i + CS_STAT_SKILLINFO, &skill_names[i]); 1391 sl.printf ("%d:%s\n", i + CS_STAT_SKILLINFO, &skill_names[i]);
1438 1392
1439 if (sl.length () >= MAXSOCKBUF) 1393 if (sl.length () > MAXSOCKBUF)
1440 { 1394 {
1441 LOG (llevError, "Buffer overflow in send_skill_info!\n"); 1395 LOG (llevError, "Buffer overflow in send_skill_info!\n");
1442 fatal (0); 1396 fatal (0);
1443 } 1397 }
1444 1398
1457 sl << "replyinfo spell_paths\n"; 1411 sl << "replyinfo spell_paths\n";
1458 1412
1459 for (int i = 0; i < NRSPELLPATHS; i++) 1413 for (int i = 0; i < NRSPELLPATHS; i++)
1460 sl.printf ("%d:%s\n", 1 << i, spellpathnames[i]); 1414 sl.printf ("%d:%s\n", 1 << i, spellpathnames[i]);
1461 1415
1462 if (sl.length () >= MAXSOCKBUF) 1416 if (sl.length () > MAXSOCKBUF)
1463 { 1417 {
1464 LOG (llevError, "Buffer overflow in send_spell_paths!\n"); 1418 LOG (llevError, "Buffer overflow in send_spell_paths!\n");
1465 fatal (0); 1419 fatal (0);
1466 } 1420 }
1467 1421
1575 if (!spell->face) 1529 if (!spell->face)
1576 { 1530 {
1577 LOG (llevError, "%s: spell has no face, but face is mandatory.\n", &spell->name); 1531 LOG (llevError, "%s: spell has no face, but face is mandatory.\n", &spell->name);
1578 spell->face = face_find ("burnout.x11", blank_face); 1532 spell->face = face_find ("burnout.x11", blank_face);
1579 } 1533 }
1534
1535 pl->ns->send_face (spell->face);
1580 1536
1581 /* send the current values */ 1537 /* send the current values */
1582 sl << uint32 (spell->count) 1538 sl << uint32 (spell->count)
1583 << uint16 (spell->level) 1539 << uint16 (spell->level)
1584 << uint16 (spell->casting_time) 1540 << uint16 (spell->casting_time)
1620 * bytes and 3 strings (because that is the spec) so we need to 1576 * bytes and 3 strings (because that is the spec) so we need to
1621 * check that the length of those 3 strings, plus the 23 bytes, 1577 * check that the length of those 3 strings, plus the 23 bytes,
1622 * won't take us over the length limit for the socket, if it does, 1578 * won't take us over the length limit for the socket, if it does,
1623 * we need to send what we already have, and restart packet formation 1579 * we need to send what we already have, and restart packet formation
1624 */ 1580 */
1581 if (spell->type != SPELL)
1582 continue;
1583
1625 /* Seeing crashes by overflowed buffers. Quick arithemetic seems 1584 /* Seeing crashes by overflowed buffers. Quick arithemetic seems
1626 * to show add_spell is 26 bytes + 2 strings. However, the overun 1585 * to show add_spell is 26 bytes + 2 strings. However, the overun
1627 * is hundreds of bytes off, so correcting 22 vs 26 doesn't seem 1586 * is hundreds of bytes off, so correcting 22 vs 26 doesn't seem
1628 * like it will fix this 1587 * like it will fix this
1629 */ 1588 */
1630 if (spell->type != SPELL)
1631 continue;
1632
1633 if (sl.length () >= (MAXSOCKBUF - (26 + strlen (spell->name) + (spell->msg ? strlen (spell->msg) : 0)))) 1589 if (sl.length () > (MAXSOCKBUF - (26 + strlen (spell->name) + (spell->msg ? strlen (spell->msg) : 0))))
1634 { 1590 {
1591 pl->ns->flush_fx ();
1635 pl->ns->send_packet (sl); 1592 pl->ns->send_packet (sl);
1636 1593
1637 sl.reset (); 1594 sl.reset ();
1638 sl << "addspell "; 1595 sl << "addspell ";
1639 } 1596 }
1647 return; 1604 return;
1648 } 1605 }
1649 else 1606 else
1650 append_spell (pl, sl, spell); 1607 append_spell (pl, sl, spell);
1651 1608
1652 if (sl.length () >= MAXSOCKBUF) 1609 if (sl.length () > MAXSOCKBUF)
1653 { 1610 {
1654 LOG (llevError, "Buffer overflow in esrv_add_spells!\n"); 1611 LOG (llevError, "Buffer overflow in esrv_add_spells!\n");
1655 fatal (0); 1612 fatal (0);
1656 } 1613 }
1657 1614
1658 /* finally, we can send the packet */ 1615 /* finally, we can send the packet */
1616 pl->ns->flush_fx ();
1659 pl->ns->send_packet (sl); 1617 pl->ns->send_packet (sl);
1660} 1618}
1661 1619

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