ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/deliantra/server/socket/request.C
(Generate patch)

Comparing deliantra/server/socket/request.C (file contents):
Revision 1.12 by root, Tue Aug 29 08:01:38 2006 UTC vs.
Revision 1.157 by root, Fri Nov 6 13:05:57 2009 UTC

1/* 1/*
2 * static char *rcsid_init_c = 2 * This file is part of Deliantra, the Roguelike Realtime MMORPG.
3 * "$Id: request.C,v 1.12 2006/08/29 08:01:38 root Exp $"; 3 *
4 */ 4 * Copyright (©) 2005,2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5
6/*
7 CrossFire, A Multiplayer game for X-windows
8
9 Copyright (C) 2001 Mark Wedel 5 * Copyright (©) 2001,2007 Mark Wedel
10 Copyright (C) 1992 Frank Tore Johansen 6 * Copyright (©) 1992,2007 Frank Tore Johansen
11 7 *
12 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
13 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
14 the Free Software Foundation; either version 2 of the License, or 10 * Free Software Foundation, either version 3 of the License, or (at your
15 (at your option) any later version. 11 * option) any later version.
16 12 *
17 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,
18 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 GNU General Public License for more details. 16 * GNU General Public License for more details.
21 17 *
22 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
23 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
24 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 20 * <http://www.gnu.org/licenses/>.
25 21 *
26 The author can be reached via e-mail to crossfire-devel@real-time.com 22 * The authors can be reached via e-mail to <support@deliantra.net>
27*/ 23 */
24
25//+GPL
28 26
29/** 27/**
30 * \file 28 * \file
31 * Client handling. 29 * Client handling.
32 * 30 *
… …
40 * have the prototype of (char *data, int datalen, int client_num). This 38 * have the prototype of (char *data, int datalen, int client_num). This
41 * way, we can use one dispatch table. 39 * way, we can use one dispatch table.
42 * 40 *
43 * esrv_map_new starts updating the map 41 * esrv_map_new starts updating the map
44 * 42 *
45 * esrv_map_setbelow allows filling in all of the faces for the map.
46 * if a face has not already been sent to the client, it is sent now.
47 *
48 * mapcellchanged, compactlayer, compactstack, perform the map compressing
49 * operations
50 *
51 * esrv_map_doneredraw finishes the map update, and ships across the
52 * map updates.
53 *
54 * esrv_map_scroll tells the client to scroll the map, and does similarily
55 * for the locally cached copy.
56 */ 43 */
57 44
58#include <global.h> 45#include <global.h>
59#include <sproto.h> 46#include <sproto.h>
60 47
61#include <newclient.h>
62#include <newserver.h>
63#include <living.h> 48#include <living.h>
64#include <commands.h> 49#include <commands.h>
65 50
66/* This block is basically taken from socket.c - I assume if it works there, 51/* This block is basically taken from socket.c - I assume if it works there,
67 * it should work here. 52 * it should work here.
68 */ 53 */
69#ifndef WIN32 /* ---win32 exclude unix headers */
70#include <sys/types.h> 54#include <sys/types.h>
71#include <sys/time.h> 55#include <sys/time.h>
72#include <sys/socket.h> 56#include <sys/socket.h>
73#include <netinet/in.h> 57#include <netinet/in.h>
74#include <netdb.h> 58#include <netdb.h>
75#endif /* win32 */
76 59
77#ifdef HAVE_UNISTD_H
78#include <unistd.h> 60#include <unistd.h>
79#endif
80
81#ifdef HAVE_SYS_TIME_H
82#include <sys/time.h> 61#include <sys/time.h>
83#endif
84 62
85#include "sounds.h" 63#include "sounds.h"
86 64
87/** 65/**
88 * This table translates the attack numbers as used within the 66 * This table translates the attack numbers as used within the
89 * program to the value we use when sending STATS command to the 67 * program to the value we use when sending STATS command to the
90 * client. If a value is -1, then we don't send that to the 68 * client. If a value is -1, then we don't send that to the
91 * client. 69 * client.
92 */ 70 */
93short atnr_cs_stat[NROFATTACKS] = {CS_STAT_RES_PHYS, 71static short atnr_cs_stat[NROFATTACKS] = { CS_STAT_RES_PHYS,
94 CS_STAT_RES_MAG,CS_STAT_RES_FIRE, CS_STAT_RES_ELEC, 72 CS_STAT_RES_MAG, CS_STAT_RES_FIRE, CS_STAT_RES_ELEC,
95 CS_STAT_RES_COLD, CS_STAT_RES_CONF, CS_STAT_RES_ACID, 73 CS_STAT_RES_COLD, CS_STAT_RES_CONF, CS_STAT_RES_ACID,
96 CS_STAT_RES_DRAIN, -1 /* weaponmagic */, 74 CS_STAT_RES_DRAIN, -1 /* weaponmagic */ ,
97 CS_STAT_RES_GHOSTHIT, CS_STAT_RES_POISON, 75 CS_STAT_RES_GHOSTHIT, CS_STAT_RES_POISON,
98 CS_STAT_RES_SLOW, CS_STAT_RES_PARA, CS_STAT_TURN_UNDEAD, 76 CS_STAT_RES_SLOW, CS_STAT_RES_PARA, CS_STAT_TURN_UNDEAD,
99 CS_STAT_RES_FEAR, -1 /* Cancellation */, 77 CS_STAT_RES_FEAR, -1 /* Cancellation */ ,
100 CS_STAT_RES_DEPLETE, CS_STAT_RES_DEATH, 78 CS_STAT_RES_DEPLETE, CS_STAT_RES_DEATH,
101 -1 /* Chaos */, -1 /* Counterspell */, 79 -1 /* Chaos */ , -1 /* Counterspell */ ,
102 -1 /* Godpower */, CS_STAT_RES_HOLYWORD, 80 -1 /* Godpower */ , CS_STAT_RES_HOLYWORD,
103 CS_STAT_RES_BLIND, 81 CS_STAT_RES_BLIND,
104 -1, /* Internal */ 82 -1, /* Internal */
105 -1, /* life stealing */ 83 -1, /* life stealing */
106 -1 /* Disease - not fully done yet */ 84 -1 /* Disease - not fully done yet */
107}; 85};
108 86
109static void 87static void
110socket_map_scroll (NewSocket *ns, int dx, int dy) 88socket_map_scroll (client *ns, int dx, int dy)
111{ 89{
112 struct Map newmap; 90 struct Map newmap;
113 int x,y, mx, my; 91 int x, y, mx, my;
114 92
115 {
116 char buf[MAXSOCKBUF];
117
118 sprintf(buf,"map_scroll %d %d", dx, dy); 93 ns->send_packet_printf ("map_scroll %d %d", dx, dy);
119 Write_String_To_Socket(ns, buf, strlen (buf));
120 }
121 94
122 /* If we are using the Map1aCmd, we may in fact send 95 /* If we are using the Map1aCmd, we may in fact send
123 * head information that is outside the viewable map. 96 * head information that is outside the viewable map.
124 * So set the mx,my to the max value we want to 97 * So set the mx,my to the max value we want to
125 * look for. Removed code to do so - it caused extra 98 * look for. Removed code to do so - it caused extra
126 * complexities for the client, and probably doesn't make 99 * complexities for the client, and probably doesn't make
127 * that much difference in bandwidth. 100 * that much difference in bandwidth.
128 */ 101 */
129 mx = ns->mapx; 102 mx = ns->mapx;
130 my = ns->mapy; 103 my = ns->mapy;
131 104
132 if (ns->mapmode == Map1aCmd) {
133 mx += MAX_HEAD_OFFSET;
134 my += MAX_HEAD_OFFSET;
135 }
136
137 /* the x and y here are coordinates for the new map, i.e. if we moved 105 /* the x and y here are coordinates for the new map, i.e. if we moved
138 * (dx,dy), newmap[x][y] = oldmap[x-dx][y-dy]. For this reason, 106 * (dx,dy), newmap[x][y] = oldmap[x-dx][y-dy]. For this reason,
139 * if the destination x or y coordinate is outside the viewable 107 * if the destination x or y coordinate is outside the viewable
140 * area, we clear the values - otherwise, the old values 108 * area, we clear the values - otherwise, the old values
141 * are preserved, and the check_head thinks it needs to clear them. 109 * are preserved, and the check_head thinks it needs to clear them.
142 */ 110 */
143 for(x=0; x<mx; x++) { 111 for (x = 0; x < mx; x++)
144 for(y=0; y<my; y++) { 112 for (y = 0; y < my; y++)
145 if(x >= ns->mapx || y >= ns->mapy) { 113 if (x >= ns->mapx || y >= ns->mapy)
146 /* clear cells outside the viewable area */ 114 /* clear cells outside the viewable area */
147 memset(&newmap.cells[x][y], 0, sizeof(struct MapCell)); 115 memset (&newmap.cells[x][y], 0, sizeof (struct MapCell));
148 }
149 else if ((x+dx) < 0 || (x+dx) >= ns->mapx || (y+dy) < 0 || (y + dy) >= ns->mapy) { 116 else if ((x + dx) < 0 || (x + dx) >= ns->mapx || (y + dy) < 0 || (y + dy) >= ns->mapy)
150 /* clear newly visible tiles within the viewable area */ 117 /* clear newly visible tiles within the viewable area */
151 memset(&(newmap.cells[x][y]), 0, sizeof(struct MapCell)); 118 memset (&(newmap.cells[x][y]), 0, sizeof (struct MapCell));
152 } 119 else
153 else { 120 memcpy (&(newmap.cells[x][y]), &(ns->lastmap.cells[x + dx][y + dy]), sizeof (struct MapCell));
154 memcpy(&(newmap.cells[x][y]),
155 &(ns->lastmap.cells[x+dx][y+dy]),sizeof(struct MapCell));
156 }
157 }
158 }
159 121
160 memcpy(&(ns->lastmap), &newmap,sizeof(struct Map)); 122 memcpy (&(ns->lastmap), &newmap, sizeof (struct Map));
161 123
162 /* Make sure that the next "map1" command will be sent (even if it is 124 /* Make sure that the next "map1" command will be sent (even if it is
163 * empty). 125 * empty).
164 */ 126 */
165 ns->sent_scroll = 1; 127 ns->sent_scroll = 1;
166} 128}
167 129
168static void 130static void
169clear_map (player *pl) 131clear_map (player *pl)
170{ 132{
171 NewSocket &socket = pl->socket; 133 pl->ns->mapinfo_queue_clear ();
172 134
173 memset (&socket.lastmap, 0, sizeof (socket.lastmap)); 135 memset (&pl->ns->lastmap, 0, sizeof (pl->ns->lastmap));
174 136
137 pl->ns->force_newmap = false;
138
175 if (socket.newmapcmd == 1) 139 if (pl->ns->newmapcmd == 1)
176 Write_String_To_Socket (&socket, "newmap", 6); 140 pl->ns->send_packet ("newmap");
177 141
178 socket.update_look = 1; 142 pl->ns->floorbox_reset ();
179 socket.look_position = 0;
180} 143}
181 144
145static void
146send_map_info (player *pl)
147{
148 client &socket = *pl->ns;
149 object *ob = pl->viewpoint;
150
151 if (socket.mapinfocmd)
152 {
153 if (ob->map && ob->map->path[0])
154 {
155 int flags = 0;
156
157 if (ob->map->tile_path[0]) flags |= 1;
158 if (ob->map->tile_path[1]) flags |= 2;
159 if (ob->map->tile_path[2]) flags |= 4;
160 if (ob->map->tile_path[3]) flags |= 8;
161
162 socket.send_packet_printf ("mapinfo - spatial %d %d %d %d %d %s",
163 flags, socket.mapx / 2 - ob->x, socket.mapy / 2 - ob->y,
164 ob->map->width, ob->map->height, &ob->map->path);
165 }
166 else
167 socket.send_packet ("mapinfo current");
168 }
169}
170
182/** check for map change and send new map data */ 171/** check for map/region change and send new map data */
183static void 172static void
184check_map_change (player *pl) 173check_map_change (player *pl)
185{ 174{
186 NewSocket &socket = pl->socket; 175 client &socket = *pl->ns;
187 object *ob = pl->ob; 176 object *ob = pl->viewpoint;
188 char buf[MAX_BUF]; /* eauugggh */
189 177
190 if (socket.current_map != ob->map) 178 region *reg = ob->region ();
179 if (socket.current_region != reg)
180 {
181 INVOKE_PLAYER (REGION_CHANGE, pl, ARG_REGION (reg), ARG_REGION (socket.current_region));
182 socket.current_region = reg;
191 { 183 }
184
185 // first try to aovid a full newmap on tiled map scrolls
186 if (socket.current_map != ob->map && !socket.force_newmap)
187 {
188 rv_vector rv;
189
190 get_rangevector_from_mapcoord (socket.current_map, socket.current_x, socket.current_y, ob, &rv, 0);
191
192 // manhattan distance is very handy here
193 if (rv.distance < 8) // 8 works nicely for speed << 70 and buggy gcfclient
194 {
195 socket.current_map = ob->map;
196 socket.current_x = ob->x;
197 socket.current_y = ob->y;
198
199 socket_map_scroll (&socket, rv.distance_x, rv.distance_y);
200 socket.floorbox_reset ();
201 send_map_info (pl);
202 }
203 }
204
205 if (socket.current_map != ob->map || socket.force_newmap)
206 {
207 clear_map (pl);
192 socket.current_map = ob->map; 208 socket.current_map = ob->map;
209 send_map_info (pl);
210 }
211 else if (socket.current_x != ob->x || socket.current_y != ob->y)
212 {
213 int dx = ob->x - socket.current_x;
214 int dy = ob->y - socket.current_y;
193 215
194 clear_map (pl); 216 socket_map_scroll (&socket, ob->x - socket.current_x, ob->y - socket.current_y);
217 socket.floorbox_reset ();
218 }
195 219
196 if (socket.mapinfocmd) 220 socket.current_x = ob->x;
221 socket.current_y = ob->y;
222}
223
224/**
225 * This sends the skill number to name mapping. We ignore
226 * the params - we always send the same info no matter what.
227 */
228void
229send_skill_info (client *ns, char *params)
230{
231 packet sl;
232 sl << "replyinfo skill_info\n";
233
234 for (int i = 1; i < NUM_SKILLS; i++)
235 sl.printf ("%d:%s\n", i + CS_STAT_SKILLINFO, &skill_names [i]);
236
237 if (sl.length () > MAXSOCKBUF)
238 {
239 LOG (llevError, "Buffer overflow in send_skill_info!\n");
240 fatal (0);
241 }
242
243 ns->send_packet (sl);
244}
245
246/**
247 * This sends the spell path to name mapping. We ignore
248 * the params - we always send the same info no matter what.
249 */
250void
251send_spell_paths (client * ns, char *params)
252{
253 packet sl;
254
255 sl << "replyinfo spell_paths\n";
256
257 for (int i = 0; i < NRSPELLPATHS; i++)
258 sl.printf ("%d:%s\n", 1 << i, spellpathnames[i]);
259
260 if (sl.length () > MAXSOCKBUF)
261 {
262 LOG (llevError, "Buffer overflow in send_spell_paths!\n");
263 fatal (0);
264 }
265
266 ns->send_packet (sl);
267}
268
269/**
270 * RequestInfo is sort of a meta command. There is some specific
271 * request of information, but we call other functions to provide
272 * that information.
273 */
274void
275RequestInfo (char *buf, int len, client *ns)
276{
277 char *params;
278
279 /* find the first space, make it null, and update the
280 * params pointer.
281 */
282 for (params = buf; *params; params++)
283 if (*params == ' ')
284 {
285 *params++ = 0;
286 break;
287 }
288
289 if (!strcmp (buf, "skill_info"))
290 send_skill_info (ns, params);
291 else if (!strcmp (buf, "spell_paths"))
292 send_spell_paths (ns, params);
293 else
294 {
295 // undo tokenisation above and send replyinfo with the request unchanged
296 if (*params)
297 *--params = ' ';
298
299 ns->send_packet_printf ("replyinfo %s", buf);
300 }
301}
302
303void
304ExtCmd (char *buf, int len, player *pl)
305{
306 INVOKE_PLAYER (EXTCMD, pl, ARG_DATA (buf, len));
307}
308
309void
310ExtiCmd (char *buf, int len, client *ns)
311{
312 INVOKE_CLIENT (EXTICMD, ns, ARG_DATA (buf, len));
313}
314
315//-GPL
316
317void
318client::mapinfo_queue_clear ()
319{
320 for (auto (i, mapinfo_queue.begin ()); i != mapinfo_queue.end (); ++i)
321 free (*i);
322
323 mapinfo_queue.clear ();
324}
325
326bool
327client::mapinfo_try (char *buf)
328{
329 char *token = buf;
330 buf += strlen (buf) + 9;
331
332 // initial map and its origin
333 maptile *map = pl->viewpoint->map;
334 int mapx = pl->ns->mapx / 2 - pl->viewpoint->x;
335 int mapy = pl->ns->mapy / 2 - pl->viewpoint->y;
336 int max_distance = 8; // limit maximum path length to something generous
337
338 while (*buf && map && max_distance)
339 {
340 int dir = *buf++ - '1';
341
342 if (dir >= 0 && dir <= 3)
197 { 343 {
198 if (ob->map && ob->map->path [0]) 344 if (!map->tile_path [dir])
345 map = 0;
346 else if (map->tile_available (dir, false))
199 { 347 {
200 int flags = 0; 348 maptile *neigh = map->tile_map [dir];
201 349
202 if (ob->map->tile_path [0]) flags |= 1; 350 switch (dir)
203 if (ob->map->tile_path [1]) flags |= 2; 351 {
204 if (ob->map->tile_path [2]) flags |= 4; 352 case 0: mapy -= neigh->height; break;
205 if (ob->map->tile_path [3]) flags |= 8; 353 case 2: mapy += map ->height; break;
354 case 3: mapx -= neigh->width ; break;
355 case 1: mapx += map ->width ; break;
356 }
206 357
207 snprintf (buf, MAX_BUF, "mapinfo - spatial %d %d %d %d %d %s", 358 map = neigh;
208 flags, socket.mapx / 2 - ob->x, socket.mapy / 2 - ob->y, 359 --max_distance;
209 ob->map->width, ob->map->height, ob->map->path);
210 } 360 }
211 else 361 else
212 snprintf (buf, MAX_BUF, "mapinfo current"); 362 return 0;
213
214 Write_String_To_Socket (&socket, buf, strlen (buf));
215 } 363 }
216 }
217 else if (socket.current_x != ob->x || socket.current_y != ob->y)
218 {
219 int dx = ob->x - socket.current_x;
220 int dy = ob->y - socket.current_y;
221
222 if (socket.buggy_mapscroll && (abs (dx) > 8 || abs (dy) > 8))
223 clear_map (pl); // current (<= 1.9.1) clients have unchecked buffer overflows
224 else 364 else
365 max_distance = 0;
366 }
367
368 if (!max_distance)
369 send_packet_printf ("mapinfo %s error", token);
370 else if (!map || !map->path)
371 send_packet_printf ("mapinfo %s nomap", token);
372 else
373 {
374 int flags = 0;
375
376 if (map->tile_path[0]) flags |= 1;
377 if (map->tile_path[1]) flags |= 2;
378 if (map->tile_path[2]) flags |= 4;
379 if (map->tile_path[3]) flags |= 8;
380
381 send_packet_printf ("mapinfo %s spatial %d %d %d %d %d %s", token, flags, mapx, mapy, map->width, map->height, &map->path);
382 }
383
384 return 1;
385}
386
387void
388client::mapinfo_queue_run ()
389{
390 if (mapinfo_queue.empty () || !pl)
391 return;
392
393 for (int i = 0; i < mapinfo_queue.size (); ++i)
394 if (mapinfo_try (mapinfo_queue [i]))
225 { 395 {
226 socket_map_scroll (&socket, ob->x - socket.current_x, ob->y - socket.current_y); 396 free (mapinfo_queue [i]);
227 socket.update_look = 1; 397 mapinfo_queue.erase (i);
228 socket.look_position = 0;
229 } 398 }
230 } 399 else
231 400 ++i;
232 socket.current_x = ob->x;
233 socket.current_y = ob->y;
234} 401}
235 402
236void ExtCmd (char *buf, int len, player *pl) 403void
237{
238 INVOKE_PLAYER (EXTCMD, pl, ARG_DATA (buf, len));
239}
240
241void MapInfoCmd (char *buf, int len, player *pl) 404MapInfoCmd (char *buf, int len, player *pl)
242{ 405{
243 // <mapinfo tag spatial tile-path 406 // <mapinfo tag spatial tile-path
244 // >mapinfo tag spatial flags x y w h hash 407 // >mapinfo tag spatial flags x y w h hash
245
246 char bigbuf[MAX_BUF], *cp, *token;
247 408
248 token = buf; 409 char *token = buf;
249 // copy token 410
250 if (!(buf = strchr (buf, ' '))) 411 if (!(buf = strchr (buf, ' ')))
251 return; 412 return;
252 413
253 *buf++ = 0;
254
255 if (!strncmp (buf, "spatial ", 8)) 414 if (!strncmp (buf, " spatial ", 9))
256 { 415 {
257 buf += 8; 416 char *copy = strdup (token);
417 copy [buf - token] = 0;
258 418
259 // initial map and its origin 419#if 0
260 mapstruct *map = pl->ob->map; 420 // this makes only sense when we flush the buffer immediately
261 sint16 dx, dy; 421 if (pl->ns->mapinfo_try (copy))
262 int mapx = pl->socket.mapx / 2 - pl->ob->x; 422 free (copy);
263 int mapy = pl->socket.mapy / 2 - pl->ob->y;
264 int max_distance = 8; // limit maximum path length to something generous
265
266 while (*buf && map && max_distance)
267 {
268 int dir = *buf++;
269
270 switch (dir)
271 {
272 case '1':
273 dx = 0; dy = -1; map = get_map_from_coord (map, &dx, &dy);
274 map && (mapy -= map->height);
275 break;
276 case '2':
277 mapx += map->width;
278 dx = map->width; dy = 0; map = get_map_from_coord (map, &dx, &dy);
279 break;
280 case '3':
281 mapy += map->height;
282 dx = 0; dy = map->height; map = get_map_from_coord (map, &dx, &dy);
283 break;
284 case '4':
285 dx = -1; dy = 0; map = get_map_from_coord (map, &dx, &dy);
286 map && (mapx -= map->width);
287 break;
288 }
289
290 --max_distance;
291 }
292
293 if (!max_distance)
294 snprintf (bigbuf, MAX_BUF, "mapinfo %s error", token);
295 else if (map && map->path [0])
296 {
297 int flags = 0;
298
299 if (map->tile_path [0]) flags |= 1;
300 if (map->tile_path [1]) flags |= 2;
301 if (map->tile_path [2]) flags |= 4;
302 if (map->tile_path [3]) flags |= 8;
303
304 snprintf (bigbuf, MAX_BUF, "mapinfo %s spatial %d %d %d %d %d %s",
305 token, flags, mapx, mapy,
306 map->width, map->height, map->path);
307 }
308 else 423 else
309 snprintf (bigbuf, MAX_BUF, "mapinfo %s nomap", token); 424#endif
425 pl->ns->mapinfo_queue.push_back (copy);
310 } 426 }
311 else 427 else
312 snprintf (bigbuf, MAX_BUF, "mapinfo %s unsupported", token); 428 pl->ns->send_packet_printf ("mapinfo %s unsupported", token);
313
314 Write_String_To_Socket (&pl->socket, bigbuf, strlen (bigbuf));
315} 429}
316 430
317/** This is the Setup cmd - easy first implementation */ 431/** This is the Setup cmd */
432void
318void SetUp(char *buf, int len, NewSocket *ns) 433SetUp (char *buf, int len, client * ns)
319{ 434{
320 int s, slen; 435 INVOKE_CLIENT (SETUP, ns, ARG_DATA (buf, len));
321 char *cmd, *param, cmdback[HUGE_BUF];
322
323 /* run through the cmds of setup
324 * syntax is setup <cmdname1> <parameter> <cmdname2> <parameter> ...
325 *
326 * we send the status of the cmd back, or a FALSE is the cmd is the server unknown
327 * The client then must sort this out
328 */
329
330 LOG(llevInfo,"Get SetupCmd:: %s\n", buf);
331 strcpy(cmdback,"setup");
332 for(s=0;s<len; ) {
333
334 cmd = &buf[s];
335
336 /* find the next space, and put a null there */
337 for(;buf[s] && buf[s] != ' ';s++) ;
338 buf[s++]=0;
339 while (buf[s] == ' ') s++;
340
341 if(s>=len)
342 break;
343
344 param = &buf[s];
345
346 for(;buf[s] && buf[s] != ' ';s++) ;
347 buf[s++]=0;
348 while (buf[s] == ' ') s++;
349
350 slen = strlen(cmdback);
351 safe_strcat(cmdback, " ", &slen, HUGE_BUF);
352 safe_strcat(cmdback, cmd, &slen, HUGE_BUF);
353 safe_strcat(cmdback, " ", &slen, HUGE_BUF);
354
355 if (!strcmp(cmd,"sound")) {
356 ns->sound = atoi(param);
357 safe_strcat(cmdback, param, &slen, HUGE_BUF);
358 }
359 else if (!strcmp(cmd,"exp64")) {
360 ns->exp64 = atoi(param);
361 safe_strcat(cmdback, param, &slen, HUGE_BUF);
362 } else if (!strcmp(cmd, "spellmon")) {
363 ns->monitor_spells = atoi(param);
364 safe_strcat(cmdback, param, &slen, HUGE_BUF);
365 } else if (!strcmp(cmd,"darkness")) {
366 ns->darkness = atoi(param);
367 safe_strcat(cmdback, param, &slen, HUGE_BUF);
368 } else if (!strcmp(cmd,"map1cmd")) {
369 if (atoi(param)) ns->mapmode = Map1Cmd;
370 /* if beyond this size, need to use map1cmd no matter what */
371 if (ns->mapx>11 || ns->mapy>11) ns->mapmode = Map1Cmd;
372 safe_strcat(cmdback, ns->mapmode == Map1Cmd?"1":"0", &slen, HUGE_BUF);
373 } else if (!strcmp(cmd,"map1acmd")) {
374 if (atoi(param)) ns->mapmode = Map1aCmd;
375 /* if beyond this size, need to use map1acmd no matter what */
376 if (ns->mapx>11 || ns->mapy>11) ns->mapmode = Map1aCmd;
377 safe_strcat(cmdback, ns->mapmode == Map1aCmd?"1":"0", &slen, HUGE_BUF);
378 } else if (!strcmp(cmd,"newmapcmd")) {
379 ns->newmapcmd= atoi(param);
380 safe_strcat(cmdback, param, &slen, HUGE_BUF);
381// } else if (!strcmp(cmd,"plugincmd")) {
382// ns->plugincmd = atoi(param);
383// safe_strcat(cmdback, param, &slen, HUGE_BUF);
384 } else if (!strcmp(cmd,"mapinfocmd")) {
385 ns->mapinfocmd = atoi(param);
386 safe_strcat(cmdback, "1", &slen, HUGE_BUF);
387 } else if (!strcmp(cmd,"extcmd")) {
388 ns->extcmd = atoi(param);
389 safe_strcat(cmdback, "1", &slen, HUGE_BUF);
390 } else if (!strcmp(cmd,"extmap")) {
391 ns->extmap = atoi(param);
392 safe_strcat(cmdback, "1", &slen, HUGE_BUF);
393 } else if (!strcmp(cmd,"facecache")) {
394 ns->facecache = atoi(param);
395 safe_strcat(cmdback, param, &slen, HUGE_BUF);
396 } else if (!strcmp(cmd,"faceset")) {
397 char tmpbuf[20];
398 int q = atoi(param);
399
400 if (is_valid_faceset(q))
401 ns->faceset=q;
402 sprintf(tmpbuf,"%d", ns->faceset);
403 safe_strcat(cmdback, tmpbuf, &slen, HUGE_BUF);
404 /* if the client is using faceset, it knows about image2 command */
405 ns->image2=1;
406 } else if (!strcmp(cmd,"itemcmd")) {
407 /* Version of the item protocol command to use. Currently,
408 * only supported versions are 1 and 2. Using a numeric
409 * value will make it very easy to extend this in the future.
410 */
411 char tmpbuf[20];
412 int q = atoi(param);
413 if (q<1 || q>2) {
414 strcpy(tmpbuf,"FALSE");
415 } else {
416 ns->itemcmd = q;
417 sprintf(tmpbuf,"%d", ns->itemcmd);
418 }
419 safe_strcat(cmdback, tmpbuf, &slen, HUGE_BUF);
420 } else if (!strcmp(cmd,"mapsize")) {
421 int x, y=0;
422 char tmpbuf[MAX_BUF], *cp;
423
424 x = atoi(param);
425 for (cp = param; *cp!=0; cp++)
426 if (*cp == 'x' || *cp == 'X') {
427 y = atoi(cp+1);
428 break;
429 }
430 if (x < 9 || y < 9 || x>MAP_CLIENT_X || y > MAP_CLIENT_Y) {
431 sprintf(tmpbuf," %dx%d", MAP_CLIENT_X, MAP_CLIENT_Y);
432 safe_strcat(cmdback, tmpbuf, &slen, HUGE_BUF);
433 } else {
434 ns->mapx = x;
435 ns->mapy = y;
436 /* better to send back what we are really using and not the
437 * param as given to us in case it gets parsed differently.
438 */
439 sprintf(tmpbuf,"%dx%d", x,y);
440 safe_strcat(cmdback, tmpbuf, &slen, HUGE_BUF);
441 /* If beyond this size and still using orig map command, need to
442 * go to map1cmd.
443 */
444 if ((x>11 || y>11) && ns->mapmode == Map0Cmd) ns->mapmode = Map1Cmd;
445 }
446 } else if (!strcmp(cmd,"extendedMapInfos")) {
447 /* Added by tchize
448 * prepare to use the mapextended command
449 */
450 char tmpbuf[20];
451 ns->ext_mapinfos = (atoi(param));
452 sprintf(tmpbuf,"%d", ns->ext_mapinfos);
453 safe_strcat(cmdback, tmpbuf, &slen, HUGE_BUF);
454 } else if (!strcmp(cmd,"extendedTextInfos")) {
455 /* Added by tchize
456 * prepare to use the extended text commands
457 * Client toggle this to non zero to get exttext
458 */
459 char tmpbuf[20];
460
461 ns->has_readable_type = (atoi(param));
462 sprintf(tmpbuf,"%d", ns->has_readable_type);
463 safe_strcat(cmdback, tmpbuf, &slen, HUGE_BUF);
464 } else {
465 /* Didn't get a setup command we understood -
466 * report a failure to the client.
467 */
468 safe_strcat(cmdback, "FALSE", &slen, HUGE_BUF);
469 }
470 } /* for processing all the setup commands */
471 LOG(llevInfo,"SendBack SetupCmd:: %s\n", cmdback);
472 Write_String_To_Socket(ns, cmdback, strlen(cmdback));
473} 436}
474 437
475/** 438/**
476 * The client has requested to be added to the game. 439 * The client has requested to be added to the game.
477 * This is what takes care of it. We tell the client how things worked out. 440 * This is what takes care of it. We tell the client how things worked out.
478 * I am not sure if this file is the best place for this function. however, 441 * I am not sure if this file is the best place for this function. however,
479 * it either has to be here or init_sockets needs to be exported. 442 * it either has to be here or init_sockets needs to be exported.
480 */ 443 */
444void
481void AddMeCmd(char *buf, int len, NewSocket *ns) 445AddMeCmd (char *buf, int len, client *ns)
482{ 446{
483 Settings oldsettings; 447 INVOKE_CLIENT (ADDME, ns, ARG_DATA (buf, len));
484 oldsettings=settings;
485 if (ns->status != Ns_Add || add_player(ns)) {
486 Write_String_To_Socket(ns, "addme_failed",12);
487 } else {
488 /* Basically, the add_player copies the socket structure into
489 * the player structure, so this one (which is from init_sockets)
490 * is not needed anymore. The write below should still work, as the
491 * stuff in ns is still relevant.
492 */
493 Write_String_To_Socket(ns, "addme_success",13);
494 socket_info.nconns--;
495 ns->status = Ns_Avail;
496 }
497 settings=oldsettings;
498} 448}
499 449
500/** Reply to ExtendedInfos command */ 450//+GPL
501void ToggleExtendedInfos (char *buf, int len, NewSocket *ns){ 451
502 char cmdback[MAX_BUF];
503 char command[50];
504 int info,nextinfo;
505 cmdback[0]='\0';
506 nextinfo=0;
507 while (1){
508 /* 1. Extract an info*/
509 info=nextinfo;
510 while ( (info<len) && (buf[info]==' ') ) info++;
511 if (info>=len)
512 break;
513 nextinfo=info+1;
514 while ( (nextinfo<len) && (buf[nextinfo]!=' ') )
515 nextinfo++;
516 if (nextinfo-info>=49) /*Erroneous info asked*/
517 continue;
518 strncpy (command,&(buf[info]),nextinfo-info);
519 command[nextinfo-info]='\0';
520 /* 2. Interpret info*/
521 if (!strcmp("smooth",command)){
522 /* Toggle smoothing*/
523 ns->EMI_smooth=!ns->EMI_smooth;
524 }else{
525 /*bad value*/
526 }
527 /*3. Next info*/
528 }
529 strcpy (cmdback,"ExtendedInfoSet");
530 if (ns->EMI_smooth){
531 strcat (cmdback," ");
532 strcat (cmdback,"smoothing");
533 }
534 Write_String_To_Socket(ns, cmdback,strlen(cmdback));
535}
536/* 452/*
537#define MSG_TYPE_BOOK 1 453#define MSG_TYPE_BOOK 1
538#define MSG_TYPE_CARD 2 454#define MSG_TYPE_CARD 2
539#define MSG_TYPE_PAPER 3 455#define MSG_TYPE_PAPER 3
540#define MSG_TYPE_SIGN 4 456#define MSG_TYPE_SIGN 4
541#define MSG_TYPE_MONUMENT 5 457#define MSG_TYPE_MONUMENT 5
542#define MSG_TYPE_SCRIPTED_DIALOG 6*/ 458#define MSG_TYPE_SCRIPTED_DIALOG 6*/
459
543/** Reply to ExtendedInfos command */ 460/** Reply to ExtendedInfos command */
461void
544void ToggleExtendedText (char *buf, int len, NewSocket *ns){ 462ToggleExtendedText (char *buf, int len, client * ns)
463{
545 char cmdback[MAX_BUF]; 464 char cmdback[MAX_BUF];
546 char temp[10]; 465 char temp[10];
547 char command[50]; 466 char command[50];
548 int info,nextinfo,i,flag; 467 int info, nextinfo, i, flag;
468
549 cmdback[0]='\0'; 469 cmdback[0] = '\0';
470
550 nextinfo=0; 471 nextinfo = 0;
551 while (1){ 472 while (1)
473 {
552 /* 1. Extract an info*/ 474 /* 1. Extract an info */
553 info=nextinfo; 475 info = nextinfo;
476
554 while ( (info<len) && (buf[info]==' ') ) info++; 477 while ((info < len) && (buf [info] == ' '))
478 info++;
479
555 if (info>=len) 480 if (info >= len)
556 break; 481 break;
482
557 nextinfo=info+1; 483 nextinfo = info + 1;
484
558 while ( (nextinfo<len) && (buf[nextinfo]!=' ') ) 485 while ((nextinfo < len) && (buf [nextinfo] != ' '))
559 nextinfo++; 486 nextinfo++;
487
560 if (nextinfo-info>=49) /*Erroneous info asked*/ 488 if (nextinfo - info >= 49) /*Erroneous info asked */
561 continue; 489 continue;
490
562 strncpy (command,&(buf[info]),nextinfo-info); 491 memcpy (command, buf + info, nextinfo - info);
563 command[nextinfo-info]='\0'; 492 command [nextinfo - info] = 0;
493
564 /* 2. Interpret info*/ 494 /* 2. Interpret info */
565 i = sscanf(command,"%d",&flag); 495 i = sscanf (command, "%d", &flag);
496
566 if ( (i==1) && (flag>0) && (flag<=MSG_TYPE_LAST)) 497 if ((i == 1) && (flag > 0) && (flag <= MSG_TYPE_LAST))
567 ns->supported_readables|=(1<<flag); 498 ns->supported_readables |= (1 << flag);
568 /*3. Next info*/ 499 /*3. Next info */
569 } 500 }
501
570 /* Send resulting state */ 502 /* Send resulting state */
571 strcpy (cmdback,"ExtendedTextSet"); 503 strcpy (cmdback, "ExtendedTextSet");
504
572 for (i=0;i<=MSG_TYPE_LAST;i++) 505 for (i = 0; i <= MSG_TYPE_LAST; i++)
573 if (ns->supported_readables &(1<<i)){ 506 if (ns->supported_readables & (1 << i))
507 {
574 strcat (cmdback," "); 508 strcat (cmdback, " ");
575 snprintf(temp,sizeof(temp),"%d",i); 509 snprintf (temp, sizeof (temp), "%d", i);
576 strcat (cmdback,temp); 510 strcat (cmdback, temp);
577 } 511 }
578 Write_String_To_Socket(ns, cmdback,strlen(cmdback));
579}
580 512
581/** 513 ns->send_packet (cmdback);
582 * A lot like the old AskSmooth (in fact, now called by AskSmooth).
583 * Basically, it makes no sense to wait for the client to request a
584 * a piece of data from us that we know the client wants. So
585 * if we know the client wants it, might as well push it to the
586 * client.
587 */
588static void SendSmooth(NewSocket *ns, uint16 face) {
589 uint16 smoothface;
590 unsigned char reply[MAX_BUF];
591 SockList sl;
592
593 /* If we can't find a face, return and set it so we won't try to send this
594 * again.
595 */
596 if ((!FindSmooth (face, &smoothface)) &&
597 (!FindSmooth ( smooth_face->number, &smoothface))) {
598
599 LOG(llevError,"could not findsmooth for %d. Neither default (%s)\n",face,smooth_face->name);
600 ns->faces_sent[face] |= NS_FACESENT_SMOOTH;
601 return;
602 }
603
604 if (!(ns->faces_sent[smoothface] & NS_FACESENT_FACE))
605 esrv_send_face(ns, smoothface, 0);
606
607 ns->faces_sent[face] |= NS_FACESENT_SMOOTH;
608
609 sl.buf=reply;
610 strcpy((char*)sl.buf,"smooth ");
611 sl.len=strlen((char*)sl.buf);
612 SockList_AddShort(&sl, face);
613 SockList_AddShort(&sl, smoothface);
614 Send_With_Handling(ns, &sl);
615} 514}
616
617 /**
618 * Tells client the picture it has to use
619 * to smooth a picture number given as argument.
620 */
621void AskSmooth (char *buf, int len, NewSocket *ns){
622 uint16 facenbr;
623
624 facenbr=atoi (buf);
625 SendSmooth(ns, facenbr);
626}
627
628
629
630
631 515
632/** 516/**
633 * This handles the general commands from the client (ie, north, fire, cast, 517 * This handles the general commands from the client (ie, north, fire, cast,
634 * etc.) 518 * etc.)
635 */ 519 */
520void
636void PlayerCmd(char *buf, int len, player *pl) 521PlayerCmd (char *buf, int len, player *pl)
637{ 522{
638 523 /* Check if there is a count. In theory, a zero count could also be
639 /* The following should never happen with a proper or honest client. 524 * sent, so check for that also.
640 * Therefore, the error message doesn't have to be too clear - if
641 * someone is playing with a hacked/non working client, this gives them
642 * an idea of the problem, but they deserve what they get
643 */ 525 */
644 if (pl->state!=ST_PLAYING) { 526 if (atoi (buf) || buf[0] == '0')
645 new_draw_info_format(NDI_UNIQUE, 0,pl->ob, 527 {
646 "You can not issue commands - state is not ST_PLAYING (%s)", buf); 528 pl->count = atoi ((char *) buf);
529
530 buf = strchr (buf, ' '); /* advance beyond the numbers */
531 if (!buf)
647 return; 532 return;
648 } 533
649 /* Check if there is a count. In theory, a zero count could also be
650 * sent, so check for that also.
651 */
652 if (atoi(buf) || buf[0]=='0') {
653 pl->count=atoi((char*)buf);
654 buf=strchr(buf,' '); /* advance beyond the numbers */
655 if (!buf) {
656#ifdef ESRV_DEBUG
657 LOG(llevDebug,"PlayerCmd: Got count but no command.\n");
658#endif
659 return;
660 }
661 buf++; 534 buf++;
662 } 535 }
663 /* This should not happen anymore. */ 536
664 if (pl->ob->speed_left<-1.0) {
665 LOG(llevError,"Player has negative time - shouldn't do command.\n");
666 }
667 /* In c_new.c */
668 execute_newserver_command(pl->ob, (char*)buf); 537 execute_newserver_command (pl->ob, (char *)buf);
538
669 /* Perhaps something better should be done with a left over count. 539 /* Perhaps something better should be done with a left over count.
670 * Cleaning up the input should probably be done first - all actions 540 * Cleaning up the input should probably be done first - all actions
671 * for the command that issued the count should be done before any other 541 * for the command that issued the count should be done before any other
672 * commands. 542 * commands.
673 */ 543 */
674
675 pl->count=0; 544 pl->count = 0;
676
677} 545}
678
679 546
680/** 547/**
681 * This handles the general commands from the client (ie, north, fire, cast, 548 * This handles the general commands from the client (ie, north, fire, cast,
682 * etc.). It is a lot like PlayerCmd above, but is called with the 549 * etc.). It is a lot like PlayerCmd above, but is called with the
683 * 'ncom' method which gives more information back to the client so it 550 * 'ncom' method which gives more information back to the client so it
684 * can throttle. 551 * can throttle.
685 */ 552 */
553void
686void NewPlayerCmd(uint8 *buf, int len, player *pl) 554NewPlayerCmd (char *buf, int len, player *pl)
687{ 555{
688 int time,repeat; 556 if (len <= 6)
689 short packet; 557 {
690 unsigned char command[MAX_BUF];
691 SockList sl;
692
693 if (len < 7) {
694 LOG(llevDebug,"Corrupt ncom command <%s> not long enough - discarding\n", buf); 558 LOG (llevDebug, "%s: corrupt ncom command <%s>: not long enough (%d) - discarding\n", pl->ns->host, buf, len);
695 return; 559 return;
696 } 560 }
697 561
698 packet = GetShort_String(buf); 562 uint16 cmdid = net_uint16 ((uint8 *)buf);
699 repeat = GetInt_String(buf+2); 563 sint32 repeat = net_sint32 ((uint8 *)buf + 2);
564
700 /* -1 is special - no repeat, but don't update */ 565 /* -1 is special - no repeat, but don't update */
701 if (repeat!=-1) { 566 if (repeat != -1)
702 pl->count=repeat; 567 pl->count = repeat;
703 }
704 if ((len-4) >= MAX_BUF) len=MAX_BUF-5;
705 568
706 strncpy((char*)command, (char*)buf+6, len-4); 569 buf += 6; //len -= 6;
707 command[len-4]='\0';
708 570
709 /* The following should never happen with a proper or honest client.
710 * Therefore, the error message doesn't have to be too clear - if
711 * someone is playing with a hacked/non working client, this gives them
712 * an idea of the problem, but they deserve what they get
713 */
714 if (pl->state!=ST_PLAYING) {
715 new_draw_info_format(NDI_UNIQUE, 0,pl->ob,
716 "You can not issue commands - state is not ST_PLAYING (%s)", buf);
717 return;
718 }
719
720 /* This should not happen anymore. */
721 if (pl->ob->speed_left<-1.0) {
722 LOG(llevError,"Player has negative time - shouldn't do command.\n");
723 }
724 /* In c_new.c */
725 execute_newserver_command(pl->ob, (char*)command); 571 execute_newserver_command (pl->ob, buf);
572
726 /* Perhaps something better should be done with a left over count. 573 /* Perhaps something better should be done with a left over count.
727 * Cleaning up the input should probably be done first - all actions 574 * Cleaning up the input should probably be done first - all actions
728 * for the command that issued the count should be done before any other 575 * for the command that issued the count should be done before any other
729 * commands. 576 * commands.
730 */ 577 */
731 pl->count=0; 578 pl->count = 0;
732 579
580 //TODO: schmorp thinks whatever this calculates, it makes no sense at all
581 int time = fabs (pl->ob->speed) < 0.001
582 ? time = MAX_TIME * 100
583 : time = (int) (MAX_TIME / fabs (pl->ob->speed));
584
733 /* Send confirmation of command execution now */ 585 /* Send confirmation of command execution now */
734 sl.buf = command; 586 packet sl ("comc");
735 strcpy((char*)sl.buf,"comc "); 587 sl << uint16 (cmdid) << uint32 (time);
736 sl.len=5; 588 pl->ns->send_packet (sl);
737 SockList_AddShort(&sl,packet);
738 if (FABS(pl->ob->speed) < 0.001) time=MAX_TIME * 100;
739 else
740 time = ( int )( MAX_TIME/ FABS(pl->ob->speed) );
741 SockList_AddInt(&sl,time);
742 Send_With_Handling(&pl->socket, &sl);
743} 589}
744
745 590
746/** This is a reply to a previous query. */ 591/** This is a reply to a previous query. */
592void
747void ReplyCmd(char *buf, int len, player *pl) 593ReplyCmd (char *buf, int len, client *ns)
748{ 594{
595 if (ns->state == ST_CUSTOM)
596 {
597 INVOKE_CLIENT (REPLY, ns, ARG_DATA (buf, len));
598 return;
599 }
600
601 if (!ns->pl)
602 return; //TODO: depends on the exact reply we are after
603 //TODO: but right now, we always have a ns->pl
604
605 player *pl = ns->pl;
606
749 /* This is to synthesize how the data would be stored if it 607 /* This is to synthesize how the data would be stored if it
750 * was normally entered. A bit of a hack, and should be cleaned up 608 * was normally entered. A bit of a hack, and should be cleaned up
751 * once all the X11 code is removed from the server. 609 * once all the X11 code is removed from the server.
752 * 610 *
753 * We pass 13 to many of the functions because this way they 611 * We pass 13 to many of the functions because this way they
754 * think it was the carriage return that was entered, and the 612 * think it was the carriage return that was entered, and the
755 * function then does not try to do additional input. 613 * function then does not try to do additional input.
756 */ 614 */
757 snprintf(pl->write_buf, sizeof(pl->write_buf), ":%s", buf); 615 snprintf (pl->write_buf, sizeof (pl->write_buf), ":%s", buf);
758 616
759 /* this avoids any hacking here */ 617 /* this avoids any hacking here */
618
619 switch (ns->state)
760 620 {
761 switch (pl->state) {
762 case ST_PLAYING: 621 case ST_PLAYING:
763 LOG(llevError,"Got reply message with ST_PLAYING input state\n"); 622 LOG (llevError, "Got reply message with ST_PLAYING input state\n");
764 break;
765
766 case ST_PLAY_AGAIN:
767 /* We can check this for return value (2==quit). Maybe we
768 * should, and do something appropriate?
769 */
770 receive_play_again(pl->ob, buf[0]);
771 break;
772
773 case ST_ROLL_STAT:
774 key_roll_stat(pl->ob,buf[0]);
775 break;
776
777 case ST_CHANGE_CLASS:
778
779 key_change_class(pl->ob, buf[0]);
780 break; 623 break;
781 624
782 case ST_CONFIRM_QUIT:
783 key_confirm_quit(pl->ob, buf[0]);
784 break;
785
786 case ST_CONFIGURE:
787 LOG(llevError,"In client input handling, but into configure state\n");
788 pl->state = ST_PLAYING;
789 break;
790
791 case ST_GET_NAME:
792 receive_player_name(pl->ob,13);
793 break;
794
795 case ST_GET_PASSWORD:
796 case ST_CONFIRM_PASSWORD:
797 receive_player_password(pl->ob,13);
798 break;
799
800 case ST_GET_PARTY_PASSWORD: /* Get password for party */ 625 case ST_GET_PARTY_PASSWORD: /* Get password for party */
801 receive_party_password(pl->ob,13); 626 receive_party_password (pl->ob, 13);
802 break; 627 break;
803 628
804 default: 629 default:
805 LOG(llevError,"Unknown input state: %d\n", pl->state); 630 LOG (llevError, "Unknown input state: %d\n", ns->state);
806 } 631 }
807} 632}
808 633
809/** 634/**
810 * Client tells its version. If there is a mismatch, we close the 635 * Client tells its version. If there is a mismatch, we close the
811 * socket. In real life, all we should care about is the client having 636 * socket. In real life, all we should care about is the client having
812 * something older than the server. If we assume the client will be 637 * something older than the server. If we assume the client will be
813 * backwards compatible, having it be a later version should not be a 638 * backwards compatible, having it be a later version should not be a
814 * problem. 639 * problem.
815 */ 640 */
641void
816void VersionCmd(char *buf, int len,NewSocket *ns) 642VersionCmd (char *buf, int len, client * ns)
817{ 643{
818 char *cp;
819 char version_warning[256];
820
821 if (!buf) { 644 if (!buf)
645 {
822 LOG(llevError, "CS: received corrupted version command\n"); 646 LOG (llevError, "CS: received corrupted version command\n");
823 return; 647 return;
824 } 648 }
825 649
826 ns->cs_version = atoi(buf); 650 ns->cs_version = atoi (buf);
827 ns->sc_version = ns->cs_version; 651 ns->sc_version = ns->cs_version;
652
653 LOG (llevDebug, "connection from client <%s>\n", buf);
654
655 //TODO: should log here just for statistics
656
828 if (VERSION_CS != ns->cs_version) { 657 //if (VERSION_CS != ns->cs_version)
829#ifdef ESRV_DEBUG 658 // unchecked;
830 LOG(llevDebug, "CS: csversion mismatch (%d,%d)\n", VERSION_CS,ns->cs_version); 659
831#endif
832 }
833 cp = strchr(buf+1,' '); 660 char *cp = strchr (buf + 1, ' ');
834 if (!cp) return; 661 if (!cp)
662 return;
663
835 ns->sc_version = atoi(cp); 664 ns->sc_version = atoi (cp);
665
836 if (VERSION_SC != ns->sc_version) { 666 //if (VERSION_SC != ns->sc_version)
837#ifdef ESRV_DEBUG 667 // unchecked;
838 LOG(llevDebug, "CS: scversion mismatch (%d,%d)\n",VERSION_SC,ns->sc_version); 668
839#endif
840 }
841 cp = strchr(cp+1, ' '); 669 cp = strchr (cp + 1, ' ');
670
842 if (cp) { 671 if (cp)
843 LOG(llevDebug,"CS: connection from client of type <%s>, ip %s\n", cp, ns->host); 672 {
673 ns->version = cp + 1;
844 674
845 snprintf (ns->client, sizeof (ns->client), "%s", cp + 1); 675 if (ns->sc_version < 1026)
846 676 ns->send_packet_printf ("drawinfo %d %s", NDI_RED,
847 /* This is first implementation - i skip all beta DX clients with it
848 * Add later stuff here for other clients
849 */
850
851 /* these are old dxclients */
852 /* Version 1024 added support for singular + plural name values -
853 * requiing this minimal value reduces complexity of that code, and it
854 * has been around for a long time.
855 */
856 if(!strcmp(" CF DX CLIENT", cp) || ns->sc_version < 1024 )
857 {
858 sprintf(version_warning,"drawinfo %d %s", NDI_RED, "**** VERSION WARNING ****\n**** CLIENT IS TOO OLD!! UPDATE THE CLIENT!! ****"); 677 "**** VERSION WARNING ****\n**** CLIENT IS TOO OLD!! UPDATE THE CLIENT!! ****");
859 Write_String_To_Socket(ns, version_warning, strlen(version_warning));
860 }
861
862 } 678 }
863} 679}
864 680
865/** sound related functions. */ 681/** sound related functions. */
866 682void
867void SetSound(char *buf, int len, NewSocket *ns) 683SetSound (char *buf, int len, client * ns)
868{ 684{
869 ns->sound = atoi(buf); 685 ns->sound = atoi (buf);
870} 686}
871 687
872/** client wants the map resent */ 688/** client wants the map resent */
873 689void
874void MapRedrawCmd(char *buf, int len, player *pl) 690MapRedrawCmd (char *buf, int len, player *pl)
875{ 691{
876/* This function is currently disabled; just clearing the map state results in 692/* This function is currently disabled; just clearing the map state results in
877 * display errors. It should clear the cache and send a newmap command. 693 * display errors. It should clear the cache and send a newmap command.
878 * Unfortunately this solution does not work because some client versions send 694 * Unfortunately this solution does not work because some client versions send
879 * a mapredraw command after receiving a newmap command. 695 * a mapredraw command after receiving a newmap command.
880 */ 696 */
881#if 0
882 /* Okay, this is MAJOR UGLY. but the only way I know how to
883 * clear the "cache"
884 */
885 memset(&pl->socket.lastmap, 0, sizeof(struct Map));
886 draw_client_map(pl->ob);
887#endif
888} 697}
889 698
890/** 699/**
891 * Moves an object (typically, container to inventory). 700 * Moves an object (typically, container to inventory).
892 * syntax is: move (to) (tag) (nrof) 701 * syntax is: move (to) (tag) (nrof)
893 */ 702 */
703void
894void MoveCmd(char *buf, int len,player *pl) 704MoveCmd (char *buf, int len, player *pl)
895{ 705{
896 int vals[3], i; 706 int to, tag, nrof;
897 707
898 /* A little funky here. We only cycle for 2 records, because 708 if (3 != sscanf (buf, "%d %d %d", &to, &tag, &nrof))
899 * we obviously am not going to find a space after the third 709 {
900 * record. Perhaps we should just replace this with a
901 * sscanf?
902 */
903 for (i=0; i<2; i++) {
904 vals[i]=atoi(buf);
905 if (!(buf = strchr(buf, ' '))) {
906 LOG(llevError,"Incomplete move command: %s\n", buf); 710 LOG (llevError, "Incomplete move command: %s\n", buf);
907 return; 711 return;
908 }
909 buf++;
910 } 712 }
911 vals[2]=atoi(buf);
912 713
913/* LOG(llevDebug,"Move item %d (nrof=%d) to %d.\n", vals[1], vals[2], vals[0]);*/ 714 esrv_move_object (pl->ob, to, tag, nrof);
914 esrv_move_object(pl->ob,vals[0], vals[1], vals[2]);
915} 715}
916
917
918 716
919/****************************************************************************** 717/******************************************************************************
920 * 718 *
921 * Start of commands the server sends to the client. 719 * Start of commands the server sends to the client.
922 * 720 *
… …
924 722
925/** 723/**
926 * Asks the client to query the user. This way, the client knows 724 * Asks the client to query the user. This way, the client knows
927 * it needs to send something back (vs just printing out a message) 725 * it needs to send something back (vs just printing out a message)
928 */ 726 */
727void
929void send_query(NewSocket *ns, uint8 flags, char *text) 728send_query (client *ns, uint8 flags, const char *text)
930{ 729{
931 char buf[MAX_BUF];
932
933 sprintf(buf,"query %d %s", flags, text?text:""); 730 ns->send_packet_printf ("query %d %s", flags, text ? text : "");
934 Write_String_To_Socket(ns, buf, strlen(buf)); 731}
732
733/**
734 * Get player's current range attack in obuf.
735 */
736static void
737rangetostring (player *pl, char *obuf)
738{
739 dynbuf_text &buf = msg_dynbuf; buf.clear ();
740
741 if (pl->ranged_ob)
742 buf << " Range" << (pl->ob->current_weapon == pl->ranged_ob ? "*" : "") << ": " << pl->ranged_ob->name;
743
744 if (pl->combat_ob)
745 buf << " Combat" << (pl->ob->current_weapon == pl->combat_ob ? "*" : "") << ": " << pl->combat_ob->name;
746
747#if 0
748 //TODO: remove this when slot system is working, this is only for debugging
749 if (pl->ob->chosen_skill)
750 buf << " Skill*: " << pl->ob->chosen_skill->name;
751#endif
752
753 //TODO: maybe golem should become the current_weapon, quite simply?
754 if (pl->golem)
755 buf << " Golem*: " << pl->golem->name;
756
757 buf << '\0';
758 buf.linearise (obuf);
935} 759}
936 760
937#define AddIfInt64(Old,New,Type) if (Old != New) {\ 761#define AddIfInt64(Old,New,Type) if (Old != New) {\
938 Old = New; \ 762 Old = New; \
939 SockList_AddChar(&sl, Type); \ 763 sl << uint8 (Type) << uint64 (New); \
940 SockList_AddInt64(&sl, New); \
941 } 764 }
942 765
943#define AddIfInt(Old,New,Type) if (Old != New) {\ 766#define AddIfInt(Old,New,Type) if (Old != New) {\
944 Old = New; \ 767 Old = New; \
945 SockList_AddChar(&sl, Type); \ 768 sl << uint8 (Type) << uint32 (New); \
946 SockList_AddInt(&sl, New); \
947 } 769 }
948 770
949#define AddIfShort(Old,New,Type) if (Old != New) {\ 771#define AddIfShort(Old,New,Type) if (Old != New) {\
950 Old = New; \ 772 Old = New; \
951 SockList_AddChar(&sl, Type); \ 773 sl << uint8 (Type) << uint16 (New); \
952 SockList_AddShort(&sl, New); \
953 } 774 }
954 775
955#define AddIfFloat(Old,New,Type) if (Old != New) {\ 776#define AddIfFloat(Old,New,Type,mult) if (Old != New) {\
956 Old = New; \ 777 Old = New; \
957 SockList_AddChar(&sl, Type); \ 778 sl << uint8 (Type) << uint32 (New*FLOAT_MULTI*mult); \
958 SockList_AddInt(&sl,(long)(New*FLOAT_MULTI));\
959 } 779 }
960 780
961#define AddIfString(Old,New,Type) if (Old == NULL || strcmp(Old,New)) {\ 781#define AddIfString(Old,New,Type) if (Old == NULL || strcmp(Old,New)) {\
962 if (Old) free(Old);\
963 Old = strdup_local(New);\ 782 free(Old); Old = strdup (New);\
964 SockList_AddChar(&sl, Type); \ 783 sl << uint8 (Type) << data8 (New); \
965 SockList_AddChar(&sl, ( char )strlen(New)); \
966 strcpy((char*)sl.buf + sl.len, New); \
967 sl.len += strlen(New); \
968 } 784 }
969 785
970/** 786/**
971 * Sends a statistics update. We look at the old values, 787 * Sends a statistics update. We look at the old values,
972 * and only send what has changed. Stat mapping values are in newclient.h 788 * and only send what has changed. Stat mapping values are in newclient.h
973 * Since this gets sent a lot, this is actually one of the few binary 789 * Since this gets sent a lot, this is actually one of the few binary
974 * commands for now. 790 * commands for now.
975 */ 791 */
792void
976void esrv_update_stats(player *pl) 793esrv_update_stats (player *pl)
977{ 794{
978 SockList sl;
979 char buf[MAX_BUF]; 795 char buf[MAX_BUF];
980 uint16 flags; 796 uint16 flags;
981 797
982 sl.buf=(unsigned char*)malloc(MAXSOCKBUF); 798 client *ns = pl->ns;
983 strcpy((char*)sl.buf,"stats "); 799 if (!ns)
984 sl.len=strlen((char*)sl.buf); 800 return;
985 801
986 if(pl->ob != NULL) 802 object *ob = pl->observe;
987 { 803 if (!ob)
804 return;
805
806 player *opl = ob->contr ? static_cast<player *>(ob->contr) : pl;
807
808 packet sl ("stats");
809
988 AddIfShort(pl->last_stats.hp, pl->ob->stats.hp, CS_STAT_HP); 810 AddIfShort (ns->last_stats.hp, ob->stats.hp, CS_STAT_HP);
989 AddIfShort(pl->last_stats.maxhp, pl->ob->stats.maxhp, CS_STAT_MAXHP); 811 AddIfShort (ns->last_stats.maxhp, ob->stats.maxhp, CS_STAT_MAXHP);
990 AddIfShort(pl->last_stats.sp, pl->ob->stats.sp, CS_STAT_SP); 812 AddIfShort (ns->last_stats.sp, ob->stats.sp, CS_STAT_SP);
991 AddIfShort(pl->last_stats.maxsp, pl->ob->stats.maxsp, CS_STAT_MAXSP); 813 AddIfShort (ns->last_stats.maxsp, ob->stats.maxsp, CS_STAT_MAXSP);
992 AddIfShort(pl->last_stats.grace, pl->ob->stats.grace, CS_STAT_GRACE); 814 AddIfShort (ns->last_stats.grace, ob->stats.grace, CS_STAT_GRACE);
993 AddIfShort(pl->last_stats.maxgrace, pl->ob->stats.maxgrace, CS_STAT_MAXGRACE); 815 AddIfShort (ns->last_stats.maxgrace, ob->stats.maxgrace, CS_STAT_MAXGRACE);
994 AddIfShort(pl->last_stats.Str, pl->ob->stats.Str, CS_STAT_STR); 816 AddIfShort (ns->last_stats.Str, ob->stats.Str, CS_STAT_STR);
995 AddIfShort(pl->last_stats.Int, pl->ob->stats.Int, CS_STAT_INT);
996 AddIfShort(pl->last_stats.Pow, pl->ob->stats.Pow, CS_STAT_POW);
997 AddIfShort(pl->last_stats.Wis, pl->ob->stats.Wis, CS_STAT_WIS);
998 AddIfShort(pl->last_stats.Dex, pl->ob->stats.Dex, CS_STAT_DEX); 817 AddIfShort (ns->last_stats.Dex, ob->stats.Dex, CS_STAT_DEX);
999 AddIfShort(pl->last_stats.Con, pl->ob->stats.Con, CS_STAT_CON); 818 AddIfShort (ns->last_stats.Con, ob->stats.Con, CS_STAT_CON);
819 AddIfShort (ns->last_stats.Int, ob->stats.Int, CS_STAT_INT);
820 AddIfShort (ns->last_stats.Wis, ob->stats.Wis, CS_STAT_WIS);
821 AddIfShort (ns->last_stats.Pow, ob->stats.Pow, CS_STAT_POW);
1000 AddIfShort(pl->last_stats.Cha, pl->ob->stats.Cha, CS_STAT_CHA); 822 AddIfShort (ns->last_stats.Cha, ob->stats.Cha, CS_STAT_CHA);
1001 } 823
1002 if(pl->socket.exp64) { 824 for (int s = 0; s < NUM_SKILLS; s++)
1003 uint8 s; 825 if (object *skill = opl->last_skill_ob [s])
1004 for(s=0;s<NUM_SKILLS;s++) { 826 if (skill->stats.exp != ns->last_skill_exp [s])
1005 if (pl->last_skill_ob[s] && 827 {
1006 pl->last_skill_exp[s] != pl->last_skill_ob[s]->stats.exp) { 828 ns->last_skill_exp [s] = skill->stats.exp;
1007 829
1008 /* Always send along the level if exp changes. This is only 830 /* Always send along the level if exp changes. This is only
1009 * 1 extra byte, but keeps processing simpler. 831 * 1 extra byte, but keeps processing simpler.
1010 */
1011 SockList_AddChar(&sl, ( char )( s + CS_STAT_SKILLINFO ));
1012 SockList_AddChar(&sl, ( char )pl->last_skill_ob[s]->level);
1013 SockList_AddInt64(&sl, pl->last_skill_ob[s]->stats.exp);
1014 pl->last_skill_exp[s] = pl->last_skill_ob[s]->stats.exp;
1015 } 832 */
833 sl << uint8 (s + CS_STAT_SKILLINFO)
834 << uint8 (skill->level)
835 << uint64 (skill->stats.exp);
1016 } 836 }
1017 } 837
1018 if (pl->socket.exp64) {
1019 AddIfInt64(pl->last_stats.exp, pl->ob->stats.exp, CS_STAT_EXP64); 838 AddIfInt64 (ns->last_stats.exp, ob->stats.exp, CS_STAT_EXP64);
1020 } else {
1021 AddIfInt(pl->last_stats.exp, ( int )pl->ob->stats.exp, CS_STAT_EXP);
1022 }
1023 AddIfShort(pl->last_level, ( char )pl->ob->level, CS_STAT_LEVEL); 839 AddIfShort (ns->last_level, ob->level, CS_STAT_LEVEL);
1024 AddIfShort(pl->last_stats.wc, pl->ob->stats.wc, CS_STAT_WC); 840 AddIfShort (ns->last_stats.wc, ob->stats.wc, CS_STAT_WC);
1025 AddIfShort(pl->last_stats.ac, pl->ob->stats.ac, CS_STAT_AC); 841 AddIfShort (ns->last_stats.ac, ob->stats.ac, CS_STAT_AC);
1026 AddIfShort(pl->last_stats.dam, pl->ob->stats.dam, CS_STAT_DAM); 842 AddIfShort (ns->last_stats.dam, ob->stats.dam, CS_STAT_DAM);
1027 AddIfFloat(pl->last_speed, pl->ob->speed, CS_STAT_SPEED); 843 AddIfFloat (ns->last_speed, ob->speed, CS_STAT_SPEED, 1.f/TICK);
1028 AddIfShort(pl->last_stats.food, pl->ob->stats.food, CS_STAT_FOOD); 844 AddIfShort (ns->last_stats.food, ob->stats.food, CS_STAT_FOOD);
1029 AddIfFloat(pl->last_weapon_sp, pl->weapon_sp, CS_STAT_WEAP_SP); 845 AddIfFloat (ns->last_weapon_sp, pl->weapon_sp, CS_STAT_WEAP_SP, 1.f/TICK);
1030 AddIfInt(pl->last_weight_limit, (sint32)weight_limit[pl->ob->stats.Str], CS_STAT_WEIGHT_LIM); 846 AddIfInt (ns->last_weight_limit, weight_limit[ob->stats.Str], CS_STAT_WEIGHT_LIM);
847
1031 flags=0; 848 flags = 0;
1032 if (pl->fire_on) flags |=SF_FIREON;
1033 if (pl->run_on) flags |= SF_RUNON;
1034 849
850 if (opl->fire_on)
851 flags |= SF_FIREON;
852
853 if (opl->run_on)
854 flags |= SF_RUNON;
855
1035 AddIfShort(pl->last_flags, flags, CS_STAT_FLAGS); 856 AddIfShort (ns->last_flags, flags, CS_STAT_FLAGS);
1036 if (pl->socket.sc_version<1025) { 857
858 if (ns->sc_version < 1025)
1037 AddIfShort(pl->last_resist[ATNR_PHYSICAL], pl->ob->resist[ATNR_PHYSICAL], CS_STAT_ARMOUR); 859 { AddIfShort (ns->last_resist[ATNR_PHYSICAL], ob->resist[ATNR_PHYSICAL], CS_STAT_ARMOUR) }
1038 } else { 860 else
1039 int i;
1040
1041 for (i=0; i<NROFATTACKS; i++) { 861 for (int i = 0; i < NROFATTACKS; i++)
862 {
1042 /* Skip ones we won't send */ 863 /* Skip ones we won't send */
1043 if (atnr_cs_stat[i]==-1) continue; 864 if (atnr_cs_stat[i] == -1)
865 continue;
866
1044 AddIfShort(pl->last_resist[i], pl->ob->resist[i], ( char )atnr_cs_stat[i]); 867 AddIfShort (ns->last_resist[i], ob->resist[i], atnr_cs_stat[i]);
1045 } 868 }
1046 } 869
1047 if (pl->socket.monitor_spells) { 870 if (pl->ns->monitor_spells)
871 {
1048 AddIfInt(pl->last_path_attuned, pl->ob->path_attuned, CS_STAT_SPELL_ATTUNE); 872 AddIfInt (ns->last_path_attuned, ob->path_attuned, CS_STAT_SPELL_ATTUNE);
1049 AddIfInt(pl->last_path_repelled, pl->ob->path_repelled, CS_STAT_SPELL_REPEL); 873 AddIfInt (ns->last_path_repelled, ob->path_repelled, CS_STAT_SPELL_REPEL);
1050 AddIfInt(pl->last_path_denied, pl->ob->path_denied, CS_STAT_SPELL_DENY); 874 AddIfInt (ns->last_path_denied, ob->path_denied, CS_STAT_SPELL_DENY);
1051 } 875 }
876
1052 rangetostring(pl->ob, buf); /* we want use the new fire & run system in new client */ 877 rangetostring (opl, buf); /* we want use the new fire & run system in new client */
1053 AddIfString(pl->socket.stats.range, buf, CS_STAT_RANGE); 878 AddIfString (ns->stats.range, buf, CS_STAT_RANGE);
1054 set_title(pl->ob, buf); 879 set_title (ob, buf);
1055 AddIfString(pl->socket.stats.title, buf, CS_STAT_TITLE); 880 AddIfString (ns->stats.title, buf, CS_STAT_TITLE);
1056 881
1057 /* Only send it away if we have some actual data */ 882 /* Only send it away if we have some actual data */
1058 if (sl.len>6) { 883 if (sl.length () > 6)
1059#ifdef ESRV_DEBUG 884 ns->send_packet (sl);
1060 LOG(llevDebug,"Sending stats command, %d bytes long.\n", sl.len);
1061#endif
1062 Send_With_Handling(&pl->socket, &sl);
1063 }
1064 free(sl.buf);
1065} 885}
1066
1067 886
1068/** 887/**
1069 * Tells the client that here is a player it should start using. 888 * Tells the client that here is a player it should start using.
1070 */ 889 */
1071void esrv_new_player(player *pl, uint32 weight) 890void
891esrv_new_player (player *pl)
1072{ 892{
1073 SockList sl; 893 sint32 weight = pl->ob->client_weight ();
1074 894
895 packet sl ("player");
896
897 sl << uint32 (pl->ob->count)
898 << uint32 (weight)
899 << uint32 (pl->ob->face)
900 << data8 (pl->ob->name);
901
1075 pl->last_weight = weight; 902 pl->ns->last_weight = weight;
1076 903 pl->ns->send_packet (sl);
1077 sl.buf=(unsigned char*)malloc(MAXSOCKBUF);
1078
1079 strcpy((char*)sl.buf,"player ");
1080 sl.len=strlen((char*)sl.buf);
1081 SockList_AddInt(&sl, pl->ob->count);
1082 SockList_AddInt(&sl, weight);
1083 SockList_AddInt(&sl, pl->ob->face->number);
1084
1085 SockList_AddChar(&sl, ( char )strlen(pl->ob->name));
1086 strcpy((char*)sl.buf+sl.len, pl->ob->name);
1087 sl.len += strlen(pl->ob->name);
1088
1089 Send_With_Handling(&pl->socket, &sl);
1090 free(sl.buf);
1091 SET_FLAG(pl->ob, FLAG_CLIENT_SENT);
1092} 904}
1093
1094
1095/**
1096 * Need to send an animation sequence to the client.
1097 * We will send appropriate face commands to the client if we haven't
1098 * sent them the face yet (this can become quite costly in terms of
1099 * how much we are sending - on the other hand, this should only happen
1100 * when the player logs in and picks stuff up.
1101 */
1102void esrv_send_animation(NewSocket *ns, short anim_num)
1103{
1104 SockList sl;
1105 int i;
1106
1107 /* Do some checking on the anim_num we got. Note that the animations
1108 * are added in contigous order, so if the number is in the valid
1109 * range, it must be a valid animation.
1110 */
1111 if (anim_num < 0 || anim_num > num_animations) {
1112 LOG(llevError,"esrv_send_anim (%d) out of bounds??\n",anim_num);
1113 return;
1114 }
1115
1116 sl.buf = (unsigned char*) malloc(MAXSOCKBUF);
1117 strcpy((char*)sl.buf, "anim ");
1118 sl.len=5;
1119 SockList_AddShort(&sl, anim_num);
1120 SockList_AddShort(&sl, 0); /* flags - not used right now */
1121 /* Build up the list of faces. Also, send any information (ie, the
1122 * the face itself) down to the client.
1123 */
1124 for (i=0; i<animations[anim_num].num_animations; i++) {
1125 if (!(ns->faces_sent[animations[anim_num].faces[i]] & NS_FACESENT_FACE))
1126 esrv_send_face(ns,animations[anim_num].faces[i],0);
1127 SockList_AddShort(&sl, animations[anim_num].faces[i]); /* flags - not used right now */
1128 }
1129 Send_With_Handling(ns, &sl);
1130 free(sl.buf);
1131 ns->anims_sent[anim_num] = 1;
1132}
1133
1134 905
1135/****************************************************************************** 906/******************************************************************************
1136 * 907 *
1137 * Start of map related commands. 908 * Start of map related commands.
1138 * 909 *
1139 ******************************************************************************/ 910 ******************************************************************************/
1140 911
1141/**
1142 * This adds face_num to a map cell at x,y. If the client doesn't have
1143 * the face yet, we will also send it.
1144 */
1145static void esrv_map_setbelow(NewSocket *ns, int x,int y,
1146 short face_num, struct Map *newmap)
1147{
1148 if(newmap->cells[x][y].count >= MAP_LAYERS) {
1149 LOG(llevError,"Too many faces in map cell %d %d\n",x,y);
1150 return;
1151 abort();
1152 }
1153 newmap->cells[x][y].faces[newmap->cells[x][y].count] = face_num;
1154 newmap->cells[x][y].count ++;
1155 if (!(ns->faces_sent[face_num] & NS_FACESENT_FACE))
1156 esrv_send_face(ns,face_num,0);
1157}
1158
1159struct LayerCell {
1160 uint16 xy;
1161 short face;
1162};
1163
1164struct MapLayer {
1165 int count;
1166 struct LayerCell lcells[MAP_CLIENT_X * MAP_CLIENT_Y];
1167};
1168
1169/** Checkes if map cells have changed */
1170static int mapcellchanged(NewSocket *ns,int i,int j, struct Map *newmap)
1171{
1172 int k;
1173
1174 if (ns->lastmap.cells[i][j].count != newmap->cells[i][j].count)
1175 return 1;
1176 for(k=0;k<newmap->cells[i][j].count;k++) {
1177 if (ns->lastmap.cells[i][j].faces[k] !=
1178 newmap->cells[i][j].faces[k]) {
1179 return 1;
1180 }
1181 }
1182 return 0;
1183}
1184
1185/**
1186 * Basically, what this does is pack the data into layers.
1187 * cnum is the client number, cur is the the buffer we put all of
1188 * this data into. we return the end of the data. layers is
1189 * how many layers of data we should back.
1190 */
1191static uint8 *compactlayer(NewSocket *ns, unsigned char *cur, int numlayers,
1192 struct Map *newmap)
1193{
1194 int x,y,k;
1195 int face;
1196 unsigned char *fcur;
1197 struct MapLayer layers[MAP_LAYERS];
1198
1199 for(k = 0;k<MAP_LAYERS;k++)
1200 layers[k].count = 0;
1201 fcur = cur;
1202 for(x=0;x<ns->mapx;x++) {
1203 for(y=0;y<ns->mapy;y++) {
1204 if (!mapcellchanged(ns,x,y,newmap))
1205 continue;
1206 if (newmap->cells[x][y].count == 0) {
1207 *cur = x*ns->mapy+y; /* mark empty space */
1208 cur++;
1209 continue;
1210 }
1211 for(k=0;k<newmap->cells[x][y].count;k++) {
1212 layers[k].lcells[layers[k].count].xy = x*ns->mapy+y;
1213 layers[k].lcells[layers[k].count].face =
1214 newmap->cells[x][y].faces[k];
1215 layers[k].count++;
1216 }
1217 }
1218 }
1219 /* If no data, return now. */
1220 if (fcur == cur && layers[0].count == 0)
1221 return cur;
1222 *cur = 255; /* mark end of explicitly cleared cells */
1223 cur++;
1224 /* First pack by layers. */
1225 for(k=0;k<numlayers;k++) {
1226 if (layers[k].count == 0)
1227 break; /* once a layer is entirely empty, no layer below it can
1228 have anything in it either */
1229 /* Pack by entries in thie layer */
1230 for(x=0;x<layers[k].count;) {
1231 fcur = cur;
1232 *cur = layers[k].lcells[x].face >> 8;
1233 cur++;
1234 *cur = layers[k].lcells[x].face & 0xFF;
1235 cur++;
1236 face = layers[k].lcells[x].face;
1237 /* Now, we back the redundant data into 1 byte xy pairings */
1238 for(y=x;y<layers[k].count;y++) {
1239 if (layers[k].lcells[y].face == face) {
1240 *cur = ( uint8 )layers[k].lcells[y].xy;
1241 cur++;
1242 layers[k].lcells[y].face = -1;
1243 }
1244 }
1245 *(cur-1) = *(cur-1) | 128; /* mark for end of xy's; 11*11 < 128 */
1246 /* forward over the now redundant data */
1247 while(x < layers[k].count &&
1248 layers[k].lcells[x].face == -1)
1249 x++;
1250 }
1251 *fcur = *fcur | 128; /* mark for end of faces at this layer */
1252 }
1253 return cur;
1254}
1255
1256static void esrv_map_doneredraw(NewSocket *ns, struct Map *newmap)
1257{
1258 static long frames,bytes,tbytes,tframes;
1259 char *cur;
1260 SockList sl;
1261
1262
1263 sl.buf=(unsigned char*)malloc(MAXSOCKBUF);
1264 strcpy((char*)sl.buf,"map ");
1265 sl.len=strlen((char*)sl.buf);
1266
1267 cur = (char *) compactlayer(ns,(unsigned char*) sl.buf+sl.len,MAP_LAYERS,newmap);
1268 sl.len=cur-(char*)sl.buf;
1269
1270/* LOG(llevDebug, "Sending map command.\n");*/
1271
1272 if (sl.len>( int )strlen("map ") || ns->sent_scroll) {
1273 /* All of this is just accounting stuff */
1274 if (tframes>100) {
1275 tframes = tbytes = 0;
1276 }
1277 tframes++;
1278 frames++;
1279 tbytes += sl.len;
1280 bytes += sl.len;
1281 memcpy(&ns->lastmap,newmap,sizeof(struct Map));
1282 Send_With_Handling(ns, &sl);
1283 ns->sent_scroll = 0;
1284 }
1285 free(sl.buf);
1286}
1287
1288
1289/** Clears a map cell */ 912/** Clears a map cell */
1290static void map_clearcell(struct MapCell *cell, int face0, int face1, int face2, int count) 913static void
914map_clearcell (struct MapCell *cell, int count)
1291{ 915{
1292 cell->faces[0] = face0; 916 cell->faces[0] = 0;
1293 cell->faces[1] = face1; 917 cell->faces[1] = 0;
1294 cell->faces[2] = face2; 918 cell->faces[2] = 0;
919 cell->smooth[0] = 0;
920 cell->smooth[1] = 0;
921 cell->smooth[2] = 0;
1295 cell->count = count; 922 cell->count = count;
1296 cell->stat_hp = 0; 923 cell->stat_hp = 0;
924 cell->flags = 0;
1297 cell->player = 0; 925 cell->player = 0;
1298} 926}
1299 927
1300#define MAX_HEAD_POS MAX(MAX_CLIENT_X, MAX_CLIENT_Y)
1301#define MAX_LAYERS 3 928#define MAX_LAYERS 3
1302
1303/* Using a global really isn't a good approach, but saves the over head of
1304 * allocating and deallocating such a block of data each time run through,
1305 * and saves the space of allocating this in the socket object when we only
1306 * need it for this cycle. If the serve is ever threaded, this needs to be
1307 * re-examined.
1308 */
1309
1310static object *heads[MAX_HEAD_POS * MAX_HEAD_POS * MAX_LAYERS];
1311
1312/**
1313 * Returns true if any of the heads for this
1314 * space is set. Returns false if all are blank - this is used
1315 * for empty space checking.
1316 */
1317static inline int have_head(int ax, int ay) {
1318
1319 if (heads[(ay * MAX_HEAD_POS + ax) * MAX_LAYERS] ||
1320 heads[(ay * MAX_HEAD_POS + ax) * MAX_LAYERS + 1] ||
1321 heads[(ay * MAX_HEAD_POS + ax) * MAX_LAYERS + 2]) return 1;
1322 return 0;
1323}
1324
1325/**
1326 * check_head is a bit simplistic version of update_space below.
1327 * basically, it only checks the that the head on space ax,ay at layer
1328 * needs to get sent - if so, it adds the data, sending the head
1329 * if needed, and returning 1. If this no data needs to get
1330 * sent, it returns zero.
1331 */
1332static int check_head (SockList &sl, NewSocket &ns, int ax, int ay, int layer)
1333{
1334 short face_num;
1335
1336 if (heads[(ay * MAX_HEAD_POS + ax) * MAX_LAYERS + layer])
1337 face_num = heads[(ay * MAX_HEAD_POS + ax) * MAX_LAYERS + layer]->face->number;
1338 else
1339 face_num = 0;
1340
1341 if (face_num != ns.lastmap.cells[ax][ay].faces[layer]) {
1342 SockList_AddShort (&sl, face_num);
1343 if (face_num && !(ns.faces_sent[face_num] & NS_FACESENT_FACE))
1344 esrv_send_face (&ns, face_num, 0);
1345 heads[(ay * MAX_HEAD_POS + ax) * MAX_LAYERS + layer] = NULL;
1346 ns.lastmap.cells[ax][ay].faces[layer] = face_num;
1347 return 1;
1348 }
1349
1350 return 0; /* No change */
1351}
1352 929
1353/** 930/**
1354 * Removes the need to replicate the same code for each layer. 931 * Removes the need to replicate the same code for each layer.
1355 * this returns true if this space is now in fact different than 932 * this returns true if this space is now in fact different than
1356 * it was. 933 * it was.
1357 * sl is the socklist this data is going into. 934 * sl is the socklist this data is going into.
1358 * ns is the socket we are working on - all the info we care 935 * ns is the socket we are working on - all the info we care
1359 * about is in this socket structure, so now need not pass the 936 * about is in this socket structure, so now need not pass the
1360 * entire player object. 937 * entire player object.
1361 * mx and my are map coordinate offsets for map mp
1362 * sx and sy are the offsets into the socket structure that
1363 * holds the old values.
1364 * layer is the layer to update, with 2 being the floor and 0 the 938 * layer is the layer to update, with 2 being the floor and 0 the
1365 * top layer (this matches what the GET_MAP_FACE and GET_MAP_FACE_OBJ) 939 * top layer (this matches what the GET_MAP_FACE and GET_MAP_FACE_OBJ)
1366 * take. Interesting to note that before this function, the map1 function 940 * take. Interesting to note that before this function, the map1 function
1367 * numbers the spaces differently - I think this was a leftover from 941 * numbers the spaces differently - I think this was a leftover from
1368 * the map command, where the faces stack up. Sinces that is no longer 942 * the map command, where the faces stack up. Sinces that is no longer
1369 * the case, it seems to make more sense to have these layer values 943 * the case, it seems to make more sense to have these layer values
1370 * actually match. 944 * actually match.
1371 */ 945 */
1372 946static int
1373static int update_space(SockList *sl, NewSocket *ns, mapstruct *mp, int mx, int my, int sx, int sy, int layer) 947update_space (packet &sl, client &ns, mapspace &ms, MapCell &lastcell, int layer)
1374{ 948{
1375 object *ob, *head; 949 object *ob = ms.faces_obj [layer];
950
951 /* If there is no object for this space, or if the face for the object
952 * is the blank face, set the face number to zero.
953 * else if we have the stored head object for this space, that takes
954 * precedence over the other object for this space.
955 * otherwise, we do special head processing
956 */
957 uint16 face_num = ob && ob->face != blank_face ? ob->face : 0;
958
959 /* We've gotten what face we want to use for the object. Now see if
960 * if it has changed since we last sent it to the client.
961 */
962 if (lastcell.faces[layer] != face_num)
963 {
964 lastcell.faces[layer] = face_num;
965
966 if (!ns.faces_sent[face_num])
967 if (ob)
968 ns.send_faces (ob);
969 else
970 ns.send_face (face_num, 10);
971
1376 uint16 face_num; 972 sl << uint16 (face_num);
1377 int bx, by,i; 973 return 1;
974 }
1378 975
1379 /* If there is a multipart object stored away, treat that as more important. 976 /* Nothing changed */
1380 * If not, then do the normal processing. 977 return 0;
978}
979
980//-GPL
981
982// prefetch (and touch) all maps within a specific distancd
983static void
984prefetch_surrounding_maps (maptile *map, int distance)
985{
986 map->touch ();
987
988 if (--distance)
989 for (int dir = 4; --dir; )
990 if (const shstr &path = map->tile_path [dir])
991 if (maptile *&neigh = map->tile_map [dir])
992 prefetch_surrounding_maps (neigh, distance);
993 else
994 neigh = maptile::find_async (path, map);
995}
996
997// prefetch a generous area around the player
998static void
999prefetch_surrounding_maps (object *op)
1000{
1001 prefetch_surrounding_maps (op->map, 3);
1002}
1003
1004//+GPL
1005
1006/**
1007 * Draws client map.
1008 */
1009void
1010draw_client_map (player *pl)
1011{
1012 object *ob = pl->viewpoint;
1013 if (!pl->observe->active)
1014 return;
1015
1016 /* If player is just joining the game, he isn't here yet, so the map
1017 * can get swapped out. If so, don't try to send them a map. All will
1018 * be OK once they really log in.
1019 */
1020 if (!ob->map || ob->map->in_memory != MAP_ACTIVE)
1021 return;
1022
1023 int startlen, oldlen;
1024
1025 check_map_change (pl);
1026 prefetch_surrounding_maps (pl->ob);
1027
1028 /* do LOS after calls to update_position */
1029 /* unfortunately, we need to udpate los when observing, currently */
1030 if (pl->do_los || pl->viewpoint != pl->ob)
1031 {
1032 pl->do_los = 0;
1033 pl->update_los ();
1034 }
1035
1036 /**
1037 * This function uses the new map1 protocol command to send the map
1038 * to the client. It is necessary because the old map command supports
1039 * a maximum map size of 15x15.
1040 * This function is much simpler than the old one. This is because
1041 * the old function optimized to send as few face identifiers as possible,
1042 * at the expense of sending more coordinate location (coordinates were
1043 * only 1 byte, faces 2 bytes, so this was a worthwhile savings). Since
1044 * we need 2 bytes for coordinates and 2 bytes for faces, such a trade off
1045 * maps no sense. Instead, we actually really only use 12 bits for coordinates,
1046 * and use the other 4 bits for other informatiion. For full documentation
1047 * of what we send, see the doc/Protocol file.
1048 * I will describe internally what we do:
1049 * the ns->lastmap shows how the map last looked when sent to the client.
1050 * in the lastmap structure, there is a cells array, which is set to the
1051 * maximum viewable size (As set in config.h).
1052 * in the cells, there are faces and a count value.
1053 * we use the count value to hold the darkness value. If -1, then this space
1054 * is not viewable.
1055 * we use faces[0] faces[1] faces[2] to hold what the three layers
1056 * look like.
1057 */
1058
1059 client &socket = *pl->ns;
1060
1061 packet sl (socket.mapmode == Map1Cmd ? "map1" : "map1a");
1062
1063 startlen = sl.length ();
1064
1065 int hx = socket.mapx / 2;
1066 int hy = socket.mapy / 2;
1067
1068 ordered_mapwalk_begin (ob, -hx, -hy, hx, hy)
1069 int ax = dx + hx;
1070 int ay = dy + hy;
1071
1072 int mask = (ax << 10) | (ay << 4);
1073 MapCell &lastcell = socket.lastmap.cells[ax][ay];
1074
1075 /* If the coordinates are not valid, or it is too dark to see,
1076 * we tell the client as such
1381 */ 1077 */
1382 1078 if (!m)
1383 head = heads[(sy * MAX_HEAD_POS + sx) * MAX_LAYERS + layer]; 1079 {
1384 1080 /* space is out of map. Update space and clear values
1385 /* Check to see if this head is part of the set of objects 1081 * if this hasn't already been done. If the space is out
1386 * we would normally send for this space. If so, then 1082 * of the map, it shouldn't have a head.
1387 * don't use the head value. We need to do the check
1388 * here and not when setting up the heads[] value for two reasons -
1389 * 1) the heads[] values will get used even if the space is not visible.
1390 * 2) its possible the head is not on the same map as a part, and I'd
1391 * rather not need to do the map translation overhead.
1392 * 3) We need to do some extra checking to make sure that we will
1393 * otherwise send the image as this layer, eg, either it matches
1394 * the head value, or is not multipart.
1395 */ 1083 */
1396 if (head && !head->more) { 1084 if (lastcell.count != -1)
1397 for (i=0; i<MAP_LAYERS; i++) { 1085 {
1398 ob = GET_MAP_FACE_OBJ(mp, mx, my, i); 1086 sl << uint16 (mask);
1399 if (!ob) continue; 1087 map_clearcell (&lastcell, -1);
1088 }
1400 1089
1401 if (ob->head) ob=ob->head; 1090 continue;
1091 }
1092
1093 int d = pl->blocked_los_uc (dx, dy);
1402 1094
1403 if (ob == head) { 1095 if (d > 3)
1404 heads[(sy * MAX_HEAD_POS + sx) * MAX_LAYERS + layer] = NULL; 1096 {
1405 head = NULL; 1097 /* This block deals with spaces that are not visible for whatever
1406 break; 1098 * reason. Still may need to send the head for this space.
1099 */
1100 if (lastcell.count != -1
1101 || lastcell.faces[0]
1102 || lastcell.faces[1]
1103 || lastcell.faces[2]
1104 || lastcell.stat_hp
1105 || lastcell.flags
1106 || lastcell.player)
1107 sl << uint16 (mask);
1108
1109 /* properly clear a previously sent big face */
1110 map_clearcell (&lastcell, -1);
1111 }
1112 else
1113 {
1114 /* In this block, the space is visible.
1115 */
1116
1117 /* Rather than try to figure out what everything that we might
1118 * need to send is, then form the packet after that,
1119 * we presume that we will in fact form a packet, and update
1120 * the bits by what we do actually send. If we send nothing,
1121 * we just back out sl.length () to the old value, and no harm
1122 * is done.
1123 * I think this is simpler than doing a bunch of checks to see
1124 * what if anything we need to send, setting the bits, then
1125 * doing those checks again to add the real data.
1126 */
1127 oldlen = sl.length ();
1128
1129 sl << uint16 (mask);
1130
1131 unsigned char dummy;
1132 unsigned char *last_ext = &dummy;
1133
1134 /* Darkness changed */
1135 if (lastcell.count != d)
1136 {
1137 mask |= 0x8;
1138
1139 *last_ext |= 0x80;
1140 last_ext = &sl[sl.length ()];
1141 sl << uint8 (d);
1142 }
1143
1144 lastcell.count = d;
1145
1146 mapspace &ms = m->at (nx, ny);
1147 ms.update ();
1148
1149 // extmap handling
1150 uint8 stat_hp = 0;
1151 uint8 stat_width = 0;
1152 uint8 flags = 0;
1153 tag_t player = 0;
1154
1155 // send hp information, if applicable
1156 if (object *op = ms.faces_obj [0])
1157 if (op->is_head () && !op->invisible)
1158 {
1159 if (op->stats.maxhp > op->stats.hp
1160 && op->stats.maxhp > 0
1161 && (op->type == PLAYER
1162 || op->type == DOOR // does not work, have maxhp 0
1163 || QUERY_FLAG (op, FLAG_MONSTER)
1164 || QUERY_FLAG (op, FLAG_ALIVE)
1165 || QUERY_FLAG (op, FLAG_GENERATOR)))
1166 {
1167 stat_hp = 255 - (op->stats.hp * 255 + 254) / op->stats.maxhp;
1168 stat_width = op->arch->max_x - op->arch->x; //TODO: should be upper-left edge
1169 }
1170
1171 if (expect_false (op->has_dialogue ()))
1172 flags |= 1;
1173
1174 if (expect_false (op->type == PLAYER))
1175 player = op == ob ? pl->ob->count
1176 : op == pl->ob ? ob->count
1177 : op->count;
1407 } 1178 }
1179
1180 if (expect_false (lastcell.stat_hp != stat_hp))
1181 {
1182 lastcell.stat_hp = stat_hp;
1183
1184 mask |= 0x8;
1185 *last_ext |= 0x80;
1186 last_ext = &sl[sl.length ()];
1187
1188 sl << uint8 (5) << uint8 (stat_hp);
1189
1190 if (stat_width > 1)
1191 {
1192 *last_ext |= 0x80;
1193 last_ext = &sl[sl.length ()];
1194
1195 sl << uint8 (6) << uint8 (stat_width);
1196 }
1408 } 1197 }
1409 }
1410 1198
1411 ob = head; 1199 if (expect_false (lastcell.player != player))
1412 if (!ob) ob = GET_MAP_FACE_OBJ(mp, mx, my, layer); 1200 {
1201 lastcell.player = player;
1413 1202
1414 /* If there is no object for this space, or if the face for the object 1203 mask |= 0x8;
1415 * is the blank face, set the face number to zero. 1204 *last_ext |= 0x80;
1416 * else if we have the stored head object for this space, that takes 1205 last_ext = &sl[sl.length ()];
1417 * precedence over the other object for this space. 1206
1418 * otherwise, we do special head processing 1207 sl << uint8 (0x47) << uint8 (4) << (uint32)player;
1419 */ 1208 }
1420 if (!ob || ob->face == blank_face) face_num=0; 1209
1421 else if (head){ 1210 if (expect_false (lastcell.flags != flags))
1422 /* if this is a head that had previously been stored */ 1211 {
1423 face_num = ob->face->number; 1212 lastcell.flags = flags;
1424 } else { 1213
1425 /* if the faces for the different parts of a multipart object 1214 mask |= 0x8;
1426 * are the same, we only want to send the bottom right most 1215 *last_ext |= 0x80;
1427 * portion of the object. That info is in the tail_.. values 1216 last_ext = &sl[sl.length ()];
1428 * of the head. Note that for the head itself, ob->head will 1217
1429 * be null, so we only do this block if we are working on 1218 sl << uint8 (8) << uint8 (flags);
1430 * a tail piece. 1219 }
1220
1221 // faces
1222
1223 /* Floor face */
1224 if (update_space (sl, socket, ms, lastcell, 2))
1225 mask |= 0x4;
1226
1227 /* Middle face */
1228 if (update_space (sl, socket, ms, lastcell, 1))
1229 mask |= 0x2;
1230
1231 if (expect_false (ob->invisible)
1232 && ob->invisible & (ob->invisible < 50 ? 1 : 7)
1233 && ms.player () == ob)
1234 {
1235 // force player to be visible to himself if invisible
1236 if (lastcell.faces[0] != ob->face)
1237 {
1238 lastcell.faces[0] = ob->face;
1239
1240 mask |= 0x1;
1241 sl << uint16 (ob->face);
1242
1243 socket.send_faces (ob);
1244 }
1245 }
1246 /* Top face */
1247 else if (update_space (sl, socket, ms, lastcell, 0))
1248 mask |= 0x1;
1249
1250 /* Check to see if we are in fact sending anything for this
1251 * space by checking the mask. If so, update the mask.
1252 * if not, reset the len to that from before adding the mask
1253 * value, so we don't send those bits.
1431 */ 1254 */
1432 1255 if (mask & 0xf)
1433 /* tail_x and tail_y will only be set in the head object. If 1256 sl[oldlen + 1] = mask & 0xff;
1434 * this is the head object and these are set, we proceed
1435 * with logic to only send bottom right. Similarly, if
1436 * this is one of the more parts but the head has those values
1437 * set, we want to do the processing. There can be cases where
1438 * the head is not visible but one of its parts is, so we just
1439 * can always expect that ob->arch->tail_x will be true for all
1440 * object we may want to display.
1441 */
1442 if ((ob->arch->tail_x || ob->arch->tail_y) ||
1443 (ob->head && (ob->head->arch->tail_x || ob->head->arch->tail_y))) {
1444
1445 if (ob->head) head = ob->head;
1446 else head = ob;
1447
1448 /* Basically figure out where the offset is from where we are right
1449 * now. the ob->arch->clone.{x,y} values hold the offset that this current
1450 * piece is from the head, and the tail is where the tail is from the
1451 * head. Note that bx and by will equal sx and sy if we are already working
1452 * on the bottom right corner. If ob is the head, the clone values
1453 * will be zero, so the right thing will still happen.
1454 */
1455 bx = sx + head->arch->tail_x - ob->arch->clone.x;
1456 by = sy + head->arch->tail_y - ob->arch->clone.y;
1457
1458 /* I don't think this can ever happen, but better to check for it just
1459 * in case.
1460 */
1461 if (bx < sx || by < sy) {
1462 LOG(llevError,"update_space: bx (%d) or by (%d) is less than sx (%d) or sy (%d)\n",
1463 bx, by, sx, sy);
1464 face_num = 0;
1465 }
1466 /* single part object, multipart object with non merged faces,
1467 * of multipart object already at lower right.
1468 */
1469 else if (bx == sx && by == sy) {
1470 face_num = ob->face->number;
1471
1472 /* if this face matches one stored away, clear that one away.
1473 * this code relies on the fact that the map1 commands
1474 * goes from 2 down to 0.
1475 */
1476 for (i=0; i<MAP_LAYERS; i++)
1477 if (heads[(sy * MAX_HEAD_POS + sx) * MAX_LAYERS + i] &&
1478 heads[(sy * MAX_HEAD_POS + sx) * MAX_LAYERS + i]->face->number == face_num)
1479 heads[(sy * MAX_HEAD_POS + sx) * MAX_LAYERS + i] = NULL;
1480 }
1481 else {
1482 /* If this head is stored away, clear it - otherwise,
1483 * there can be cases where a object is on multiple layers -
1484 * we only want to send it once.
1485 */
1486 face_num = head->face->number;
1487 for (i=0; i<MAP_LAYERS; i++)
1488 if (heads[(by * MAX_HEAD_POS + bx) * MAX_LAYERS + i] &&
1489 heads[(by * MAX_HEAD_POS + bx) * MAX_LAYERS + i]->face->number == face_num)
1490 heads[(by * MAX_HEAD_POS + bx) * MAX_LAYERS + i] = NULL;
1491
1492 /* First, try to put the new head on the same layer. If that is used up,
1493 * then find another layer.
1494 */
1495 if (heads[(by * MAX_HEAD_POS + bx) * MAX_LAYERS + layer] == NULL) {
1496 heads[(by * MAX_HEAD_POS + bx) * MAX_LAYERS + layer] = head;
1497 } else for (i=0; i<MAX_LAYERS; i++) {
1498 if (heads[(by * MAX_HEAD_POS + bx) * MAX_LAYERS + i] == NULL ||
1499 heads[(by * MAX_HEAD_POS + bx) * MAX_LAYERS + i] == head) {
1500 heads[(by * MAX_HEAD_POS + bx) * MAX_LAYERS + i] = head;
1501 }
1502 }
1503 face_num = 0; /* Don't send this object - we'll send the head later */
1504 }
1505 } else { 1257 else
1506 /* In this case, we are already at the lower right or single part object, 1258 sl.reset (oldlen);
1507 * so nothing special
1508 */
1509 face_num = ob->face->number;
1510
1511 /* clear out any head entries that have the same face as this one */
1512 for (bx=0; bx<layer; bx++)
1513 if (heads[(sy * MAX_HEAD_POS + sx) * MAX_LAYERS + bx] &&
1514 heads[(sy * MAX_HEAD_POS + sx) * MAX_LAYERS + bx]->face->number == face_num)
1515 heads[(sy * MAX_HEAD_POS + sx) * MAX_LAYERS + bx] = NULL;
1516 }
1517 } /* else not already head object or blank face */
1518
1519 /* This is a real hack. Basically, if we have nothing to send for this layer,
1520 * but there is a head on the next layer, send that instead.
1521 * Without this, what happens is you can get the case where the player stands
1522 * on the same space as the head. However, if you have overlapping big objects
1523 * of the same type, what happens then is it doesn't think it needs to send
1524 * This tends to make stacking also work/look better.
1525 */
1526 if (!face_num && layer > 0 && heads[(sy * MAX_HEAD_POS + sx) * MAX_LAYERS + layer -1]) {
1527 face_num = heads[(sy * MAX_HEAD_POS + sx) * MAX_LAYERS + layer -1]->face->number;
1528 heads[(sy * MAX_HEAD_POS + sx) * MAX_LAYERS + layer -1] = NULL;
1529 }
1530
1531 /* Another hack - because of heads and whatnot, this face may match one
1532 * we already sent for a lower layer. In that case, don't send
1533 * this one.
1534 */
1535 if (face_num && layer+1<MAP_LAYERS && ns->lastmap.cells[sx][sy].faces[layer+1] == face_num) {
1536 face_num = 0;
1537 }
1538
1539 /* We've gotten what face we want to use for the object. Now see if
1540 * if it has changed since we last sent it to the client.
1541 */
1542 if (ns->lastmap.cells[sx][sy].faces[layer] != face_num) {
1543 ns->lastmap.cells[sx][sy].faces[layer] = face_num;
1544 if (!(ns->faces_sent[face_num] & NS_FACESENT_FACE))
1545 esrv_send_face(ns, face_num, 0);
1546 SockList_AddShort(sl, face_num);
1547 return 1;
1548 }
1549 /* Nothing changed */
1550 return 0;
1551}
1552
1553/**
1554 * This function is mainly a copy of update_space,
1555 * except it handles update of the smoothing updates,
1556 * not the face updates.
1557 * Removes the need to replicate the same code for each layer.
1558 * this returns true if this smooth is now in fact different
1559 * than it was.
1560 * sl is the socklist this data is going into.
1561 * ns is the socket we are working on - all the info we care
1562 * about is in this socket structure, so know need to pass the
1563 * entire player object.
1564 * mx and my are map coordinate offsets for map mp
1565 * sx and sy are the offsets into the socket structure that
1566 * holds the old values.
1567 * layer is the layer to update, with 2 being the floor and 0 the
1568 * top layer (this matches what the GET_MAP_FACE and GET_MAP_FACE_OBJ
1569 * take.
1570 */
1571
1572static inline int update_smooth(SockList *sl, NewSocket *ns, mapstruct *mp, int mx, int my, int sx, int sy, int layer)
1573{
1574 object *ob;
1575 int smoothlevel; /* old face_num;*/
1576
1577 ob = GET_MAP_FACE_OBJ(mp, mx, my, layer);
1578
1579 /* If there is no object for this space, or if the face for the object
1580 * is the blank face, set the smoothlevel to zero.
1581 */
1582 if (!ob || ob->face == blank_face || MAP_NOSMOOTH(mp)) smoothlevel=0;
1583 else {
1584 smoothlevel = ob->smoothlevel;
1585 if (smoothlevel && !(ns->faces_sent[ob->face->number] & NS_FACESENT_SMOOTH))
1586 SendSmooth(ns, ob->face->number);
1587 } /* else not already head object or blank face */
1588
1589 /* We've gotten what face we want to use for the object. Now see if
1590 * if it has changed since we last sent it to the client.
1591 */
1592 if (smoothlevel>255)
1593 smoothlevel=255;
1594 else if (smoothlevel<0)
1595 smoothlevel=0;
1596 if (ns->lastmap.cells[sx][sy].smooth[layer] != smoothlevel) {
1597 ns->lastmap.cells[sx][sy].smooth[layer] = smoothlevel;
1598 SockList_AddChar(sl, (uint8) (smoothlevel&0xFF));
1599 return 1;
1600 }
1601 /* Nothing changed */
1602 return 0;
1603}
1604
1605/**
1606 * Returns the size of a data for a map square as returned by
1607 * mapextended. There are CLIENTMAPX*CLIENTMAPY*LAYERS entries
1608 * available.
1609 */
1610int getExtendedMapInfoSize(NewSocket* ns){
1611 int result=0;
1612 if (ns->ext_mapinfos){
1613 if (ns->EMI_smooth)
1614 result+=1; /*One byte for smoothlevel*/
1615 }
1616 return result;
1617}
1618/**
1619 * This function uses the new map1 protocol command to send the map
1620 * to the client. It is necessary because the old map command supports
1621 * a maximum map size of 15x15.
1622 * This function is much simpler than the old one. This is because
1623 * the old function optimized to send as few face identifiers as possible,
1624 * at the expense of sending more coordinate location (coordinates were
1625 * only 1 byte, faces 2 bytes, so this was a worthwhile savings). Since
1626 * we need 2 bytes for coordinates and 2 bytes for faces, such a trade off
1627 * maps no sense. Instead, we actually really only use 12 bits for coordinates,
1628 * and use the other 4 bits for other informatiion. For full documentation
1629 * of what we send, see the doc/Protocol file.
1630 * I will describe internally what we do:
1631 * the socket->lastmap shows how the map last looked when sent to the client.
1632 * in the lastmap structure, there is a cells array, which is set to the
1633 * maximum viewable size (As set in config.h).
1634 * in the cells, there are faces and a count value.
1635 * we use the count value to hold the darkness value. If -1, then this space
1636 * is not viewable.
1637 * we use faces[0] faces[1] faces[2] to hold what the three layers
1638 * look like.
1639 */
1640void draw_client_map1(object *pl)
1641{
1642 int x,y,ax, ay, d, startlen, max_x, max_y, oldlen;
1643 sint16 nx, ny;
1644 int estartlen, eoldlen;
1645 SockList sl;
1646 SockList esl; /*For extended Map info*/
1647 uint16 mask,emask;
1648 uint8 eentrysize;
1649 uint16 ewhatstart,ewhatflag;
1650 uint8 extendedinfos;
1651 mapstruct *m;
1652 NewSocket &socket = pl->contr->socket;
1653
1654 check_map_change (pl->contr);
1655
1656 sl.buf=(unsigned char*)malloc(MAXSOCKBUF);
1657 if (socket.mapmode == Map1Cmd)
1658 strcpy((char*)sl.buf,"map1 ");
1659 else
1660 strcpy((char*)sl.buf,"map1a ");
1661 sl.len=strlen((char*)sl.buf);
1662 startlen = sl.len;
1663 /*Extendedmapinfo structure initialisation*/
1664 if (socket.ext_mapinfos){
1665 esl.buf=(unsigned char*)malloc(MAXSOCKBUF);
1666 strcpy((char*)esl.buf,"mapextended ");
1667 esl.len=strlen((char*)esl.buf);
1668 extendedinfos=EMI_NOREDRAW;
1669 if (socket.EMI_smooth)
1670 extendedinfos|=EMI_SMOOTH;
1671 ewhatstart=esl.len;
1672 ewhatflag=extendedinfos; /*The EMI_NOREDRAW bit
1673 could need to be taken away*/
1674 SockList_AddChar(&esl, extendedinfos);
1675 eentrysize=getExtendedMapInfoSize(&socket);
1676 SockList_AddChar(&esl, eentrysize);
1677 estartlen = esl.len;
1678 } else {
1679 /* suppress compiler warnings */
1680 ewhatstart = 0;
1681 ewhatflag = 0;
1682 estartlen = 0;
1683 }
1684 /* Init data to zero */
1685 memset(heads, 0, sizeof(object *) * MAX_HEAD_POS * MAX_HEAD_POS * MAX_LAYERS);
1686
1687 /* x,y are the real map locations. ax, ay are viewport relative
1688 * locations.
1689 */
1690 ay=0;
1691
1692 /* We could do this logic as conditionals in the if statement,
1693 * but that started to get a bit messy to look at.
1694 */
1695 max_x = pl->x+(socket.mapx+1)/2;
1696 max_y = pl->y+(socket.mapy+1)/2;
1697 if (socket.mapmode == Map1aCmd) {
1698 max_x += MAX_HEAD_OFFSET;
1699 max_y += MAX_HEAD_OFFSET;
1700 }
1701
1702 for(y=pl->y-socket.mapy/2; y<max_y; y++,ay++) {
1703 ax=0;
1704 for(x=pl->x-socket.mapx/2;x<max_x;x++,ax++) {
1705
1706 emask = mask = (ax & 0x3f) << 10 | (ay & 0x3f) << 4;
1707
1708 /* If this space is out of the normal viewable area, we only check
1709 * the heads value ax or ay will only be greater than what
1710 * the client wants if using the map1a command - this is because
1711 * if the map1a command is not used, max_x and max_y will be
1712 * set to lower values.
1713 */
1714 if (ax >= socket.mapx || ay >= socket.mapy) {
1715 int i, got_one;
1716
1717 oldlen = sl.len;
1718
1719 SockList_AddShort(&sl, mask);
1720
1721 if (check_head (sl, socket, ax, ay, 2))
1722 mask |= 0x4;
1723 if (check_head (sl, socket, ax, ay, 1))
1724 mask |= 0x2;
1725 if (check_head (sl, socket, ax, ay, 0))
1726 mask |= 0x1;
1727
1728 /* If all we are doing is sending 0 (blank) faces, we don't
1729 * actually need to send that - just the coordinates
1730 * with no faces tells the client to blank out the
1731 * space.
1732 */
1733 got_one=0;
1734 for (i=oldlen+2; i<sl.len; i++) {
1735 if (sl.buf[i]) got_one=1;
1736 }
1737
1738 if (got_one && (mask & 0xf)) {
1739 sl.buf[oldlen+1] = mask & 0xff;
1740 } else { /*either all faces blank, either no face at all*/
1741 if (mask & 0xf) /*at least 1 face, we know it's blank, only send coordinates*/
1742 sl.len = oldlen + 2;
1743 else
1744 sl.len = oldlen;
1745 }
1746 /*What concerns extendinfos, nothing to be done for now
1747 * (perhaps effects layer later)
1748 */
1749 continue; /* don't do processing below */
1750 }
1751
1752 MapCell &lastcell = socket.lastmap.cells[ax][ay];
1753
1754 d = pl->contr->blocked_los[ax][ay];
1755
1756 /* If the coordinates are not valid, or it is too dark to see,
1757 * we tell the client as such
1758 */
1759 nx=x;
1760 ny=y;
1761 m = get_map_from_coord(pl->map, &nx, &ny);
1762 if (!m) {
1763 /* space is out of map. Update space and clear values
1764 * if this hasn't already been done. If the space is out
1765 * of the map, it shouldn't have a head
1766 */
1767 if (lastcell.count != -1) {
1768 SockList_AddShort(&sl, mask);
1769 map_clearcell(&lastcell,0,0,0,-1);
1770 }
1771 } else if (d>3) {
1772 int need_send=0, count;
1773 /* This block deals with spaces that are not visible for whatever
1774 * reason. Still may need to send the head for this space.
1775 */
1776
1777 oldlen = sl.len;
1778
1779 SockList_AddShort(&sl, mask);
1780 if (lastcell.count != -1) need_send=1;
1781 count = -1;
1782
1783 if (socket.mapmode == Map1aCmd && have_head(ax, ay)) {
1784 /* Now check to see if any heads need to be sent */
1785
1786 if (check_head (sl, socket, ax, ay, 2))
1787 mask |= 0x4;
1788 if (check_head (sl, socket, ax, ay, 1))
1789 mask |= 0x2;
1790 if (check_head (sl, socket, ax, ay, 0))
1791 mask |= 0x1;
1792
1793 lastcell.count = count;
1794
1795 } else {
1796 struct MapCell *cell = &lastcell;
1797 /* properly clear a previously sent big face */
1798 if(cell->faces[0] != 0
1799 || cell->faces[1] != 0
1800 || cell->faces[2] != 0)
1801 need_send = 1;
1802 map_clearcell(&lastcell, 0, 0, 0, count);
1803 }
1804
1805 if ((mask & 0xf) || need_send) {
1806 sl.buf[oldlen+1] = mask & 0xff;
1807 } else {
1808 sl.len = oldlen;
1809 }
1810 } else {
1811 /* In this block, the space is visible or there are head objects
1812 * we need to send.
1813 */
1814
1815 /* Rather than try to figure out what everything that we might
1816 * need to send is, then form the packet after that,
1817 * we presume that we will in fact form a packet, and update
1818 * the bits by what we do actually send. If we send nothing,
1819 * we just back out sl.len to the old value, and no harm
1820 * is done.
1821 * I think this is simpler than doing a bunch of checks to see
1822 * what if anything we need to send, setting the bits, then
1823 * doing those checks again to add the real data.
1824 */
1825 oldlen = sl.len;
1826 mask = (ax & 0x3f) << 10 | (ay & 0x3f) << 4;
1827 eoldlen = esl.len;
1828 emask = (ax & 0x3f) << 10 | (ay & 0x3f) << 4;
1829 SockList_AddShort(&sl, mask);
1830
1831 if (socket.ext_mapinfos)
1832 SockList_AddShort(&esl, emask);
1833
1834 unsigned char dummy;
1835 unsigned char *last_ext = &dummy;
1836
1837 /* Darkness changed */
1838 if (lastcell.count != d && socket.darkness) {
1839 mask |= 0x8;
1840
1841 if (socket.extmap)
1842 {
1843 *last_ext |= 0x80; last_ext = sl.buf + sl.len; SockList_AddChar (&sl, d);
1844 }
1845 else
1846 SockList_AddChar (&sl, 255 - 64 * d);
1847 }
1848
1849 lastcell.count = d;
1850
1851 if (socket.extmap)
1852 {
1853 uint8 stat_hp = 0;
1854 uint8 stat_width = 0;
1855 tag_t player = 0;
1856
1857 // send hp information, if applicable
1858 if (object *op = GET_MAP_FACE_OBJ (m, nx, ny, 0))
1859 {
1860 if (op->head || op->invisible)
1861 ; // do not show
1862 else if (op->type == PLAYER
1863 || QUERY_FLAG (op, FLAG_MONSTER)
1864 || QUERY_FLAG (op, FLAG_ALIVE)
1865 || QUERY_FLAG (op, FLAG_GENERATOR))
1866 {
1867 if (op->stats.maxhp > 0
1868 && (unsigned)op->stats.maxhp > (unsigned)op->stats.hp)
1869 {
1870 stat_hp = 255 - (op->stats.hp * 255 + 254) / op->stats.maxhp;
1871 stat_width = op->arch->tail_x;
1872 }
1873 }
1874
1875 if (op->type == PLAYER && op != pl)
1876 player = op->count;
1877 }
1878
1879 if (lastcell.stat_hp != stat_hp && 0)
1880 {
1881 lastcell.stat_hp = stat_hp;
1882
1883 mask |= 0x8;
1884 *last_ext |= 0x80; last_ext = sl.buf + sl.len; SockList_AddChar (&sl, 5);
1885 SockList_AddChar (&sl, stat_hp);
1886
1887 if (stat_width > 1)
1888 {
1889 *last_ext |= 0x80; last_ext = sl.buf + sl.len; SockList_AddChar (&sl, 6);
1890 SockList_AddChar (&sl, stat_width);
1891 }
1892 }
1893
1894 if (lastcell.player != player && 0)
1895 {
1896 lastcell.player = player;
1897 mask |= 0x8;
1898 *last_ext |= 0x80; last_ext = sl.buf + sl.len; SockList_AddChar (&sl, 0x47);
1899 SockList_AddChar (&sl, 4);
1900 SockList_AddInt (&sl, player);
1901 }
1902 }
1903
1904 /* Floor face */
1905 if (update_space(&sl, &socket, m, nx, ny, ax, ay, 2))
1906 mask |= 0x4;
1907
1908 if (socket.EMI_smooth)
1909 if (update_smooth(&esl, &socket, m, nx, ny, ax, ay, 2))
1910 emask |= 0x4;
1911
1912 /* Middle face */
1913 if (update_space(&sl, &socket, m, nx, ny, ax, ay, 1))
1914 mask |= 0x2;
1915
1916 if (socket.EMI_smooth)
1917 if (update_smooth(&esl, &socket, m, nx, ny, ax, ay, 1))
1918 emask |= 0x2;
1919
1920 if(nx == pl->x && ny == pl->y && pl->invisible & (pl->invisible < 50 ? 4 : 1)) {
1921 if (lastcell.faces[0] != pl->face->number) {
1922 lastcell.faces[0] = pl->face->number;
1923 mask |= 0x1;
1924 if (!(socket.faces_sent[pl->face->number] &NS_FACESENT_FACE))
1925 esrv_send_face(&socket, pl->face->number, 0);
1926 SockList_AddShort(&sl, pl->face->number);
1927 }
1928 }
1929 /* Top face */
1930 else {
1931 if (update_space(&sl, &socket, m, nx, ny, ax, ay, 0))
1932 mask |= 0x1;
1933 if (socket.EMI_smooth)
1934 if (update_smooth(&esl, &socket, m, nx, ny, ax, ay, 0)){
1935 emask |= 0x1;
1936 }
1937 }
1938 /* Check to see if we are in fact sending anything for this
1939 * space by checking the mask. If so, update the mask.
1940 * if not, reset the len to that from before adding the mask
1941 * value, so we don't send those bits.
1942 */
1943 if (mask & 0xf) {
1944 sl.buf[oldlen+1] = mask & 0xff;
1945 } else {
1946 sl.len = oldlen;
1947 }
1948 if (emask & 0xf) {
1949 esl.buf[eoldlen+1] = emask & 0xff;
1950 } else {
1951 esl.len = eoldlen;
1952 }
1953 } /* else this is a viewable space */ 1259 } /* else this is a viewable space */
1954 } /* for x loop */ 1260 ordered_mapwalk_end
1955 } /* for y loop */
1956 1261
1957 /* Verify that we in fact do need to send this */ 1262 socket.flush_fx ();
1958 if (socket.ext_mapinfos){ 1263
1959 if (!(sl.len>startlen || socket.sent_scroll)){
1960 /* No map data will follow, so don't say the client
1961 * it doesn't need draw!
1962 */
1963 ewhatflag&=(~EMI_NOREDRAW);
1964 esl.buf[ewhatstart+1] = ewhatflag & 0xff;
1965 }
1966 if (esl.len>estartlen) {
1967 Send_With_Handling(&socket, &esl);
1968 }
1969 free(esl.buf);
1970 }
1971 if (sl.len>startlen || socket.sent_scroll) { 1264 if (sl.length () > startlen || socket.sent_scroll)
1972 Send_With_Handling(&socket, &sl); 1265 {
1266 socket.send_packet (sl);
1973 socket.sent_scroll = 0; 1267 socket.sent_scroll = 0;
1974 }
1975 free(sl.buf);
1976}
1977
1978/**
1979 * Draws client map.
1980 */
1981void draw_client_map(object *pl)
1982{
1983 int i,j;
1984 sint16 ax, ay, nx, ny;/* ax and ay goes from 0 to max-size of arrays */
1985 New_Face *face,*floor;
1986 New_Face *floor2;
1987 int d, mflags;
1988 struct Map newmap;
1989 mapstruct *m, *pm;
1990
1991 if (pl->type != PLAYER) {
1992 LOG(llevError,"draw_client_map called with non player/non eric-server\n");
1993 return;
1994 }
1995
1996 pm = pl->map;
1997
1998 /* If player is just joining the game, he isn't here yet, so the map
1999 * can get swapped out. If so, don't try to send them a map. All will
2000 * be OK once they really log in.
2001 */
2002 if (pm==NULL || pm->in_memory!=MAP_IN_MEMORY) return;
2003
2004 memset(&newmap, 0, sizeof(struct Map));
2005
2006 for(j = (pl->y - pl->contr->socket.mapy/2) ; j < (pl->y + (pl->contr->socket.mapy+1)/2); j++) {
2007 for(i = (pl->x - pl->contr->socket.mapx/2) ; i < (pl->x + (pl->contr->socket.mapx+1)/2); i++) {
2008 ax=i;
2009 ay=j;
2010 m = pm;
2011 mflags = get_map_flags(m, &m, ax, ay, &ax, &ay);
2012 if (mflags & P_OUT_OF_MAP)
2013 continue;
2014 if (mflags & P_NEED_UPDATE)
2015 update_position(m, ax, ay);
2016 /* If a map is visible to the player, we don't want to swap it out
2017 * just to reload it. This should really call something like
2018 * swap_map, but this is much more efficient and 'good enough'
2019 */
2020 if (mflags & P_NEW_MAP)
2021 m->timeout = 50;
2022 }
2023 }
2024 /* do LOS after calls to update_position */
2025 if(pl->contr->do_los) {
2026 update_los(pl);
2027 pl->contr->do_los = 0;
2028 }
2029
2030 if (pl->contr->socket.mapmode == Map1Cmd || pl->contr->socket.mapmode == Map1aCmd) {
2031 /* Big maps need a different drawing mechanism to work */
2032 draw_client_map1(pl);
2033 return;
2034 }
2035 1268 }
2036 if(pl->invisible & (pl->invisible < 50 ? 4 : 1)) {
2037 esrv_map_setbelow(&pl->contr->socket,pl->contr->socket.mapx/2,
2038 pl->contr->socket.mapy/2,pl->face->number,&newmap);
2039 }
2040
2041 /* j and i are the y and x coordinates of the real map (which is
2042 * basically some number of spaces around the player)
2043 * ax and ay are values from within the viewport (ie, 0, 0 is upper
2044 * left corner) and are thus disconnected from the map values.
2045 * Subtract 1 from the max values so that we properly handle cases where
2046 * player has specified an even map. Otherwise, we try to send them too
2047 * much, ie, if mapx is 10, we would try to send from -5 to 5, which is actually
2048 * 11 spaces. Now, we would send from -5 to 4, which is properly. If mapx is
2049 * odd, this still works fine.
2050 */
2051 ay=0;
2052 for(j=pl->y-pl->contr->socket.mapy/2; j<=pl->y+(pl->contr->socket.mapy-1)/2;j++, ay++) {
2053 ax=0;
2054 for(i=pl->x-pl->contr->socket.mapx/2;i<=pl->x+(pl->contr->socket.mapx-1)/2;i++, ax++) {
2055
2056 d = pl->contr->blocked_los[ax][ay];
2057 /* note the out_of_map and d>3 checks are both within the same
2058 * negation check.
2059 */
2060 nx = i;
2061 ny = j;
2062 m = get_map_from_coord(pm, &nx, &ny);
2063 if (m && d<4) {
2064 face = GET_MAP_FACE(m, nx, ny,0);
2065 floor2 = GET_MAP_FACE(m, nx, ny,1);
2066 floor = GET_MAP_FACE(m, nx, ny,2);
2067
2068 /* If all is blank, send a blank face. */
2069 if ((!face || face == blank_face) &&
2070 (!floor2 || floor2 == blank_face) &&
2071 (!floor || floor == blank_face)) {
2072 esrv_map_setbelow(&pl->contr->socket,ax,ay,
2073 blank_face->number,&newmap);
2074 } else { /* actually have something interesting */
2075 /* send the darkness mask, if any. */
2076 if (d && pl->contr->socket.darkness)
2077 esrv_map_setbelow(&pl->contr->socket,ax,ay,
2078 dark_faces[d-1]->number,&newmap);
2079
2080 if (face && face != blank_face)
2081 esrv_map_setbelow(&pl->contr->socket,ax,ay,
2082 face->number,&newmap);
2083 if (floor2 && floor2 != blank_face)
2084 esrv_map_setbelow(&pl->contr->socket,ax,ay,
2085 floor2->number,&newmap);
2086 if (floor && floor != blank_face)
2087 esrv_map_setbelow(&pl->contr->socket,ax,ay,
2088 floor->number,&newmap);
2089 }
2090 } /* Is a valid space */
2091 }
2092 }
2093 esrv_map_doneredraw(&pl->contr->socket, &newmap);
2094
2095 check_map_change (pl->contr);
2096} 1269}
2097
2098 1270
2099/*****************************************************************************/ 1271/*****************************************************************************/
2100/* GROS: The following one is used to allow a plugin to send a generic cmd to*/ 1272/* GROS: The following one is used to allow a plugin to send a generic cmd to*/
2101/* a player. Of course, the client need to know the command to be able to */ 1273/* a player. Of course, the client need to know the command to be able to */
2102/* manage it ! */ 1274/* manage it ! */
2103/*****************************************************************************/ 1275/*****************************************************************************/
1276void
2104void send_plugin_custom_message(object *pl, char *buf) 1277send_plugin_custom_message (object *pl, char *buf)
2105{ 1278{
2106 cs_write_string(&pl->contr->socket,buf,strlen(buf)); 1279 pl->contr->ns->send_packet (buf);
2107}
2108
2109/**
2110 * This sends the skill number to name mapping. We ignore
2111 * the params - we always send the same info no matter what.
2112 */
2113void send_skill_info(NewSocket *ns, char *params)
2114{
2115 SockList sl;
2116 int i;
2117
2118 sl.buf = (unsigned char*) malloc(MAXSOCKBUF);
2119 strcpy((char*)sl.buf,"replyinfo skill_info\n");
2120 for (i=1; i< NUM_SKILLS; i++) {
2121 sprintf((char*)sl.buf + strlen((char*)sl.buf), "%d:%s\n", i + CS_STAT_SKILLINFO,
2122 skill_names[i]);
2123 }
2124 sl.len = strlen((char*)sl.buf);
2125 if (sl.len >= MAXSOCKBUF) {
2126 LOG(llevError,"Buffer overflow in send_skill_info!\n");
2127 fatal(0);
2128 }
2129 Send_With_Handling(ns, &sl);
2130 free(sl.buf);
2131}
2132
2133/**
2134 * This sends the spell path to name mapping. We ignore
2135 * the params - we always send the same info no matter what.
2136 */
2137void send_spell_paths (NewSocket *ns, char *params) {
2138 SockList sl;
2139 int i;
2140
2141 sl.buf = (unsigned char*) malloc(MAXSOCKBUF);
2142 strcpy((char*)sl.buf,"replyinfo spell_paths\n");
2143 for(i=0; i<NRSPELLPATHS; i++)
2144 sprintf((char*)sl.buf + strlen((char*)sl.buf), "%d:%s\n", 1<<i, spellpathnames[i]);
2145 sl.len = strlen((char*)sl.buf);
2146 if (sl.len >= MAXSOCKBUF) {
2147 LOG(llevError,"Buffer overflow in send_spell_paths!\n");
2148 fatal(0);
2149 }
2150 Send_With_Handling(ns, &sl);
2151 free(sl.buf);
2152} 1280}
2153 1281
2154/** 1282/**
2155 * This looks for any spells the player may have that have changed their stats. 1283 * This looks for any spells the player may have that have changed their stats.
2156 * it then sends an updspell packet for each spell that has changed in this way 1284 * it then sends an updspell packet for each spell that has changed in this way
2157 */ 1285 */
1286void
2158void esrv_update_spells(player *pl) { 1287esrv_update_spells (player *pl)
2159 SockList sl; 1288{
2160 int flags=0; 1289 if (!pl->ns)
2161 object *spell; 1290 return;
2162 if (!pl->socket.monitor_spells) return; 1291
1292 if (!pl->ns->monitor_spells)
1293 return;
1294
2163 for (spell=pl->ob->inv; spell!=NULL; spell=spell->below) { 1295 for (object *spell = pl->ob->inv; spell; spell = spell->below)
1296 {
2164 if (spell->type == SPELL) { 1297 if (spell->type == SPELL)
1298 {
1299 int flags = 0;
1300
2165 /* check if we need to update it*/ 1301 /* check if we need to update it */
2166 if (spell->last_sp != SP_level_spellpoint_cost(pl->ob, spell, SPELL_MANA)) { 1302 if (spell->cached_sp != SP_level_spellpoint_cost (pl->ob, spell, SPELL_MANA))
1303 {
2167 spell->last_sp = SP_level_spellpoint_cost(pl->ob, spell, SPELL_MANA); 1304 spell->cached_sp = SP_level_spellpoint_cost (pl->ob, spell, SPELL_MANA);
2168 flags |= UPD_SP_MANA; 1305 flags |= UPD_SP_MANA;
2169 } 1306 }
1307
2170 if (spell->last_grace != SP_level_spellpoint_cost(pl->ob, spell, SPELL_GRACE)) { 1308 if (spell->cached_grace != SP_level_spellpoint_cost (pl->ob, spell, SPELL_GRACE))
1309 {
2171 spell->last_grace = SP_level_spellpoint_cost(pl->ob, spell, SPELL_GRACE); 1310 spell->cached_grace = SP_level_spellpoint_cost (pl->ob, spell, SPELL_GRACE);
2172 flags |= UPD_SP_GRACE; 1311 flags |= UPD_SP_GRACE;
2173 } 1312 }
1313
2174 if (spell->last_eat != spell->stats.dam+SP_level_dam_adjust(pl->ob, spell)) { 1314 if (spell->cached_eat != spell->stats.dam + SP_level_dam_adjust (pl->ob, spell))
1315 {
2175 spell->last_eat = spell->stats.dam+SP_level_dam_adjust(pl->ob, spell); 1316 spell->cached_eat = spell->stats.dam + SP_level_dam_adjust (pl->ob, spell);
2176 flags |= UPD_SP_DAMAGE; 1317 flags |= UPD_SP_DAMAGE;
2177 } 1318 }
1319
2178 if (flags !=0) { 1320 if (flags)
2179 sl.buf =(unsigned char*) malloc(MAXSOCKBUF); 1321 {
2180 strcpy((char*)sl.buf,"updspell "); 1322 packet sl;
2181 sl.len=strlen((char*)sl.buf); 1323
2182 SockList_AddChar(&sl, flags); 1324 sl << "updspell "
2183 SockList_AddInt(&sl, spell->count); 1325 << uint8 (flags)
2184 if (flags & UPD_SP_MANA) SockList_AddShort(&sl, spell->last_sp); 1326 << uint32 (spell->count);
2185 if (flags & UPD_SP_GRACE) SockList_AddShort(&sl, spell->last_grace); 1327
2186 if (flags & UPD_SP_DAMAGE) SockList_AddShort(&sl, spell->last_eat); 1328 if (flags & UPD_SP_MANA ) sl << uint16 (spell->cached_sp);
2187 flags = 0; 1329 if (flags & UPD_SP_GRACE ) sl << uint16 (spell->cached_grace);
2188 Send_With_Handling(&pl->socket, &sl); 1330 if (flags & UPD_SP_DAMAGE) sl << uint16 (spell->cached_eat);
2189 free(sl.buf); 1331
1332 pl->ns->send_packet (sl);
2190 } 1333 }
2191 } 1334 }
2192 } 1335 }
2193} 1336}
2194 1337
1338void
2195void esrv_remove_spell(player *pl, object *spell) { 1339esrv_remove_spell (player *pl, object *spell)
2196 SockList sl; 1340{
1341 if (!pl->ns->monitor_spells)
1342 return;
2197 1343
2198 if (!pl->socket.monitor_spells) return;
2199 if (!pl || !spell || spell->env != pl->ob) { 1344 if (!pl || !spell || spell->env != pl->ob)
1345 {
2200 LOG(llevError, "Invalid call to esrv_remove_spell"); 1346 LOG (llevError, "Invalid call to esrv_remove_spell");
2201 return; 1347 return;
2202 } 1348 }
2203 sl.buf = (unsigned char*) malloc(MAXSOCKBUF); 1349
2204 strcpy((char*)sl.buf,"delspell "); 1350 packet sl ("delspell");
2205 sl.len=strlen((char*)sl.buf); 1351
2206 SockList_AddInt(&sl, spell->count); 1352 sl << uint32 (spell->count);
2207 Send_With_Handling(&pl->socket, &sl); 1353
2208 free(sl.buf); 1354 pl->ns->send_packet (sl);
2209} 1355}
2210 1356
2211/* appends the spell *spell to the Socklist we will send the data to. */ 1357/* appends the spell *spell to the Socklist we will send the data to. */
1358static void
2212static void append_spell (player *pl, SockList *sl, object *spell) { 1359append_spell (player *pl, packet &sl, object *spell)
1360{
2213 int len, i, skill=0; 1361 int i, skill = 0;
2214 1362
2215 if (!(spell->name)) { 1363 if (!(spell->name))
1364 {
2216 LOG(llevError, "item number %d is a spell with no name.\n", spell->count); 1365 LOG (llevError, "item number %d is a spell with no name.\n", spell->count);
2217 return; 1366 return;
2218 } 1367 }
2219 SockList_AddInt(sl, spell->count); 1368
2220 SockList_AddShort(sl, spell->level);
2221 SockList_AddShort(sl, spell->casting_time);
2222 /* store costs and damage in the object struct, to compare to later */ 1369 /* store costs and damage in the object struct, to compare to later */
2223 spell->last_sp = SP_level_spellpoint_cost(pl->ob, spell, SPELL_MANA); 1370 spell->cached_sp = SP_level_spellpoint_cost (pl->ob, spell, SPELL_MANA);
2224 spell->last_grace = SP_level_spellpoint_cost(pl->ob, spell, SPELL_GRACE); 1371 spell->cached_grace = SP_level_spellpoint_cost (pl->ob, spell, SPELL_GRACE);
2225 spell->last_eat = spell->stats.dam+SP_level_dam_adjust(pl->ob, spell); 1372 spell->cached_eat = spell->stats.dam + SP_level_dam_adjust (pl->ob, spell);
2226 /* send the current values */
2227 SockList_AddShort(sl, spell->last_sp);
2228 SockList_AddShort(sl, spell->last_grace);
2229 SockList_AddShort(sl, spell->last_eat);
2230 1373
2231 /* figure out which skill it uses, if it uses one */ 1374 /* figure out which skill it uses, if it uses one */
2232 if (spell->skill) { 1375 if (spell->skill)
2233 for (i=1; i< NUM_SKILLS; i++) 1376 if (object *tmp = pl->find_skill (spell->skill))
2234 if (!strcmp(spell->skill, skill_names[i])) { 1377 skill = tmp->subtype + CS_STAT_SKILLINFO;
2235 skill = i+CS_STAT_SKILLINFO; 1378
2236 break; 1379 // spells better have a face
2237 } 1380 if (!spell->face)
2238 } 1381 {
2239 SockList_AddChar(sl, skill); 1382 LOG (llevError, "%s: spell has no face, but face is mandatory.\n", &spell->name);
2240 1383 spell->face = face_find ("burnout.x11", blank_face);
2241 SockList_AddInt(sl, spell->path_attuned);
2242 SockList_AddInt(sl, (spell->face)?spell->face->number:0);
2243
2244 len = strlen(spell->name);
2245 SockList_AddChar(sl, (char)len);
2246 memcpy(sl->buf+sl->len, spell->name, len);
2247 sl->len+=len;
2248
2249 if (!spell->msg) {
2250 SockList_AddShort(sl, 0);
2251 } 1384 }
2252 else { 1385
2253 len = strlen(spell->msg); 1386 pl->ns->send_face (spell->face);
2254 SockList_AddShort(sl, len); 1387
2255 memcpy(sl->buf+sl->len, spell->msg, len); 1388 /* send the current values */
2256 sl->len+=len; 1389 sl << uint32 (spell->count)
2257 } 1390 << uint16 (spell->level)
1391 << uint16 (spell->casting_time)
1392 << uint16 (spell->cached_sp)
1393 << uint16 (spell->cached_grace)
1394 << uint16 (spell->cached_eat)
1395 << uint8 (skill)
1396 << uint32 (spell->path_attuned)
1397 << uint32 (spell->face)
1398 << data8 (spell->name)
1399 << data16 (spell->msg);
2258} 1400}
2259 1401
2260/** 1402/**
2261 * This tells the client to add the spell *ob, if *ob is NULL, then add 1403 * This tells the client to add the spell *ob, if *ob is NULL, then add
2262 * all spells in the player's inventory. 1404 * all spells in the player's inventory.
2263 */ 1405 */
1406void
2264void esrv_add_spells(player *pl, object *spell) { 1407esrv_add_spells (player *pl, object *spell)
2265 SockList sl; 1408{
2266 if (!pl) { 1409 if (!pl)
1410 {
2267 LOG(llevError, "esrv_add_spells, tried to add a spell to a NULL player"); 1411 LOG (llevError, "esrv_add_spells, tried to add a spell to a NULL player");
2268 return; 1412 return;
2269 } 1413 }
2270 if (!pl->socket.monitor_spells) return; 1414
2271 sl.buf = (unsigned char*) malloc(MAXSOCKBUF); 1415 if (!pl->ns->monitor_spells)
2272 strcpy((char*)sl.buf,"addspell "); 1416 return;
2273 sl.len=strlen((char*)sl.buf); 1417
1418 packet sl ("addspell");
1419
2274 if (!spell) { 1420 if (!spell)
1421 {
2275 for (spell=pl->ob->inv; spell!=NULL; spell=spell->below) { 1422 for (spell = pl->ob->inv; spell; spell = spell->below)
1423 {
2276 /* were we to simply keep appending data here, we could exceed 1424 /* were we to simply keep appending data here, we could exceed
2277 * MAXSOCKBUF if the player has enough spells to add, we know that 1425 * MAXSOCKBUF if the player has enough spells to add, we know that
2278 * append_spells will always append 19 data bytes, plus 4 length 1426 * append_spells will always append 19 data bytes, plus 4 length
2279 * bytes and 3 strings (because that is the spec) so we need to 1427 * bytes and 3 strings (because that is the spec) so we need to
2280 * check that the length of those 3 strings, plus the 23 bytes, 1428 * check that the length of those 3 strings, plus the 23 bytes,
2281 * won't take us over the length limit for the socket, if it does, 1429 * won't take us over the length limit for the socket, if it does,
2282 * we need to send what we already have, and restart packet formation 1430 * we need to send what we already have, and restart packet formation
2283 */ 1431 */
1432 if (spell->type != SPELL)
1433 continue;
1434
2284 /* Seeing crashes by overflowed buffers. Quick arithemetic seems 1435 /* Seeing crashes by overflowed buffers. Quick arithemetic seems
2285 * to show add_spell is 26 bytes + 2 strings. However, the overun 1436 * to show add_spell is 26 bytes + 2 strings. However, the overun
2286 * is hundreds of bytes off, so correcting 22 vs 26 doesn't seem 1437 * is hundreds of bytes off, so correcting 22 vs 26 doesn't seem
2287 * like it will fix this 1438 * like it will fix this
2288 */ 1439 */
2289 if (spell->type != SPELL) continue; 1440 if (sl.length () > (MAXSOCKBUF - (26 + strlen (spell->name) + (spell->msg ? strlen (spell->msg) : 0))))
2290 if (sl.len >= (MAXSOCKBUF - (26 + strlen(spell->name) + 1441 {
2291 (spell->msg?strlen(spell->msg):0)))) { 1442 pl->ns->flush_fx ();
2292 Send_With_Handling(&pl->socket, &sl); 1443 pl->ns->send_packet (sl);
2293 strcpy((char*)sl.buf,"addspell "); 1444
2294 sl.len=strlen((char*)sl.buf); 1445 sl.reset ();
1446 sl << "addspell ";
2295 } 1447 }
1448
2296 append_spell(pl, &sl, spell); 1449 append_spell (pl, sl, spell);
2297 } 1450 }
2298 } 1451 }
2299 else if (spell->type != SPELL) { 1452 else if (spell->type != SPELL)
1453 {
2300 LOG(llevError, "Asked to send a non-spell object as a spell"); 1454 LOG (llevError, "Asked to send a non-spell object as a spell");
2301 return; 1455 return;
2302 } 1456 }
1457 else
2303 else append_spell(pl, &sl, spell); 1458 append_spell (pl, sl, spell);
1459
2304 if (sl.len >= MAXSOCKBUF) { 1460 if (sl.length () > MAXSOCKBUF)
1461 {
2305 LOG(llevError,"Buffer overflow in esrv_add_spells!\n"); 1462 LOG (llevError, "Buffer overflow in esrv_add_spells!\n");
2306 fatal(0); 1463 fatal (0);
2307 } 1464 }
1465
2308 /* finally, we can send the packet */ 1466 /* finally, we can send the packet */
2309 Send_With_Handling(&pl->socket, &sl); 1467 pl->ns->flush_fx ();
2310 free(sl.buf); 1468 pl->ns->send_packet (sl);
2311} 1469}
2312 1470
1471//-GPL
1472

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines