1 |
/* |
2 |
CrossFire, A Multiplayer game for X-windows |
3 |
|
4 |
Copyright (C) 2001 Mark Wedel |
5 |
Copyright (C) 1992 Frank Tore Johansen |
6 |
|
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This program is free software; you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation; either version 2 of the License, or |
10 |
(at your option) any later version. |
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|
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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|
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You should have received a copy of the GNU General Public License |
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along with this program; if not, write to the Free Software |
19 |
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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|
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The author can be reached via e-mail to <crossfire@schmorp.de> |
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*/ |
23 |
|
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/** |
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* \file |
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* Client handling. |
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* |
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* \date 2003-12-02 |
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* |
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* This file implements all of the goo on the server side for handling |
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* clients. It's got a bunch of global variables for keeping track of |
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* each of the clients. |
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* |
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* Note: All functions that are used to process data from the client |
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* have the prototype of (char *data, int datalen, int client_num). This |
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* way, we can use one dispatch table. |
37 |
* |
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* esrv_map_new starts updating the map |
39 |
* |
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* esrv_map_setbelow allows filling in all of the faces for the map. |
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* if a face has not already been sent to the client, it is sent now. |
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* |
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*/ |
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|
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#include <global.h> |
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#include <sproto.h> |
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|
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#include <living.h> |
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#include <commands.h> |
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|
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/* This block is basically taken from socket.c - I assume if it works there, |
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* it should work here. |
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*/ |
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#include <sys/types.h> |
55 |
#include <sys/time.h> |
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#include <sys/socket.h> |
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#include <netinet/in.h> |
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#include <netdb.h> |
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|
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#include <unistd.h> |
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#include <sys/time.h> |
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|
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#include "sounds.h" |
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|
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/** |
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* This table translates the attack numbers as used within the |
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* program to the value we use when sending STATS command to the |
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* client. If a value is -1, then we don't send that to the |
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* client. |
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*/ |
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short atnr_cs_stat[NROFATTACKS] = { CS_STAT_RES_PHYS, |
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CS_STAT_RES_MAG, CS_STAT_RES_FIRE, CS_STAT_RES_ELEC, |
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CS_STAT_RES_COLD, CS_STAT_RES_CONF, CS_STAT_RES_ACID, |
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CS_STAT_RES_DRAIN, -1 /* weaponmagic */ , |
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CS_STAT_RES_GHOSTHIT, CS_STAT_RES_POISON, |
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CS_STAT_RES_SLOW, CS_STAT_RES_PARA, CS_STAT_TURN_UNDEAD, |
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CS_STAT_RES_FEAR, -1 /* Cancellation */ , |
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CS_STAT_RES_DEPLETE, CS_STAT_RES_DEATH, |
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-1 /* Chaos */ , -1 /* Counterspell */ , |
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-1 /* Godpower */ , CS_STAT_RES_HOLYWORD, |
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CS_STAT_RES_BLIND, |
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-1, /* Internal */ |
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-1, /* life stealing */ |
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-1 /* Disease - not fully done yet */ |
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}; |
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|
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static void |
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socket_map_scroll (client *ns, int dx, int dy) |
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{ |
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struct Map newmap; |
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int x, y, mx, my; |
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|
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ns->send_packet_printf ("map_scroll %d %d", dx, dy); |
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|
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/* If we are using the Map1aCmd, we may in fact send |
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* head information that is outside the viewable map. |
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* So set the mx,my to the max value we want to |
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* look for. Removed code to do so - it caused extra |
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* complexities for the client, and probably doesn't make |
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* that much difference in bandwidth. |
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*/ |
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mx = ns->mapx; |
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my = ns->mapy; |
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|
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if (ns->mapmode == Map1aCmd) |
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{ |
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mx += MAX_HEAD_OFFSET; |
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my += MAX_HEAD_OFFSET; |
109 |
} |
110 |
|
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/* the x and y here are coordinates for the new map, i.e. if we moved |
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* (dx,dy), newmap[x][y] = oldmap[x-dx][y-dy]. For this reason, |
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* if the destination x or y coordinate is outside the viewable |
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* area, we clear the values - otherwise, the old values |
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* are preserved, and the check_head thinks it needs to clear them. |
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*/ |
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for (x = 0; x < mx; x++) |
118 |
{ |
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for (y = 0; y < my; y++) |
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{ |
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if (x >= ns->mapx || y >= ns->mapy) |
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/* clear cells outside the viewable area */ |
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memset (&newmap.cells[x][y], 0, sizeof (struct MapCell)); |
124 |
else if ((x + dx) < 0 || (x + dx) >= ns->mapx || (y + dy) < 0 || (y + dy) >= ns->mapy) |
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/* clear newly visible tiles within the viewable area */ |
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memset (&(newmap.cells[x][y]), 0, sizeof (struct MapCell)); |
127 |
else |
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memcpy (&(newmap.cells[x][y]), &(ns->lastmap.cells[x + dx][y + dy]), sizeof (struct MapCell)); |
129 |
} |
130 |
} |
131 |
|
132 |
memcpy (&(ns->lastmap), &newmap, sizeof (struct Map)); |
133 |
|
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/* Make sure that the next "map1" command will be sent (even if it is |
135 |
* empty). |
136 |
*/ |
137 |
ns->sent_scroll = 1; |
138 |
} |
139 |
|
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static void |
141 |
clear_map (player *pl) |
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{ |
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client &socket = *pl->socket; |
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|
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memset (&socket.lastmap, 0, sizeof (socket.lastmap)); |
146 |
|
147 |
if (socket.newmapcmd == 1) |
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socket.send_packet ("newmap"); |
149 |
|
150 |
socket.update_look = 1; |
151 |
socket.look_position = 0; |
152 |
} |
153 |
|
154 |
/** check for map change and send new map data */ |
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static void |
156 |
check_map_change (player *pl) |
157 |
{ |
158 |
client &socket = *pl->socket; |
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object *ob = pl->ob; |
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char buf[MAX_BUF]; /* eauugggh */ |
161 |
|
162 |
if (socket.current_map != ob->map) |
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{ |
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socket.current_map = ob->map; |
165 |
|
166 |
clear_map (pl); |
167 |
|
168 |
if (socket.mapinfocmd) |
169 |
{ |
170 |
if (ob->map && ob->map->path[0]) |
171 |
{ |
172 |
int flags = 0; |
173 |
|
174 |
if (ob->map->tile_path[0]) |
175 |
flags |= 1; |
176 |
if (ob->map->tile_path[1]) |
177 |
flags |= 2; |
178 |
if (ob->map->tile_path[2]) |
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flags |= 4; |
180 |
if (ob->map->tile_path[3]) |
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flags |= 8; |
182 |
|
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snprintf (buf, MAX_BUF, "mapinfo - spatial %d %d %d %d %d %s", |
184 |
flags, socket.mapx / 2 - ob->x, socket.mapy / 2 - ob->y, ob->map->width, ob->map->height, ob->map->path); |
185 |
} |
186 |
else |
187 |
snprintf (buf, MAX_BUF, "mapinfo current"); |
188 |
|
189 |
socket.send_packet (buf); |
190 |
} |
191 |
} |
192 |
else if (socket.current_x != ob->x || socket.current_y != ob->y) |
193 |
{ |
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int dx = ob->x - socket.current_x; |
195 |
int dy = ob->y - socket.current_y; |
196 |
|
197 |
if (socket.buggy_mapscroll && (abs (dx) > 8 || abs (dy) > 8)) |
198 |
clear_map (pl); // current (<= 1.9.1) clients have unchecked buffer overflows |
199 |
else |
200 |
{ |
201 |
socket_map_scroll (&socket, ob->x - socket.current_x, ob->y - socket.current_y); |
202 |
socket.update_look = 1; |
203 |
socket.look_position = 0; |
204 |
} |
205 |
} |
206 |
|
207 |
socket.current_x = ob->x; |
208 |
socket.current_y = ob->y; |
209 |
} |
210 |
|
211 |
/** |
212 |
* RequestInfo is sort of a meta command. There is some specific |
213 |
* request of information, but we call other functions to provide |
214 |
* that information. |
215 |
*/ |
216 |
void |
217 |
RequestInfo (char *buf, int len, client * ns) |
218 |
{ |
219 |
char *params = NULL, *cp; |
220 |
|
221 |
/* No match */ |
222 |
char bigbuf[MAX_BUF]; |
223 |
int slen; |
224 |
|
225 |
/* Set up replyinfo before we modify any of the buffers - this is used |
226 |
* if we don't find a match. |
227 |
*/ |
228 |
strcpy (bigbuf, "replyinfo "); |
229 |
slen = strlen (bigbuf); |
230 |
safe_strcat (bigbuf, buf, &slen, MAX_BUF); |
231 |
|
232 |
/* find the first space, make it null, and update the |
233 |
* params pointer. |
234 |
*/ |
235 |
for (cp = buf; *cp != '\0'; cp++) |
236 |
if (*cp == ' ') |
237 |
{ |
238 |
*cp = '\0'; |
239 |
params = cp + 1; |
240 |
break; |
241 |
} |
242 |
|
243 |
if (!strcmp (buf, "image_info")) |
244 |
send_image_info (ns, params); |
245 |
else if (!strcmp (buf, "image_sums")) |
246 |
send_image_sums (ns, params); |
247 |
else if (!strcmp (buf, "skill_info")) |
248 |
send_skill_info (ns, params); |
249 |
else if (!strcmp (buf, "spell_paths")) |
250 |
send_spell_paths (ns, params); |
251 |
else |
252 |
ns->send_packet (bigbuf, len); |
253 |
} |
254 |
|
255 |
void |
256 |
ExtCmd (char *buf, int len, player *pl) |
257 |
{ |
258 |
INVOKE_PLAYER (EXTCMD, pl, ARG_DATA (buf, len)); |
259 |
} |
260 |
|
261 |
void |
262 |
MapInfoCmd (char *buf, int len, player *pl) |
263 |
{ |
264 |
// <mapinfo tag spatial tile-path |
265 |
// >mapinfo tag spatial flags x y w h hash |
266 |
|
267 |
char bigbuf[MAX_BUF], *token; |
268 |
|
269 |
token = buf; |
270 |
// copy token |
271 |
if (!(buf = strchr (buf, ' '))) |
272 |
return; |
273 |
|
274 |
*buf++ = 0; |
275 |
|
276 |
if (!strncmp (buf, "spatial ", 8)) |
277 |
{ |
278 |
buf += 8; |
279 |
|
280 |
// initial map and its origin |
281 |
maptile *map = pl->ob->map; |
282 |
sint16 dx, dy; |
283 |
int mapx = pl->socket->mapx / 2 - pl->ob->x; |
284 |
int mapy = pl->socket->mapy / 2 - pl->ob->y; |
285 |
int max_distance = 8; // limit maximum path length to something generous |
286 |
|
287 |
while (*buf && map && max_distance) |
288 |
{ |
289 |
int dir = *buf++; |
290 |
|
291 |
switch (dir) |
292 |
{ |
293 |
case '1': |
294 |
dx = 0; |
295 |
dy = -1; |
296 |
map = get_map_from_coord (map, &dx, &dy); |
297 |
map && (mapy -= map->height); |
298 |
break; |
299 |
case '2': |
300 |
mapx += map->width; |
301 |
dx = map->width; |
302 |
dy = 0; |
303 |
map = get_map_from_coord (map, &dx, &dy); |
304 |
break; |
305 |
case '3': |
306 |
mapy += map->height; |
307 |
dx = 0; |
308 |
dy = map->height; |
309 |
map = get_map_from_coord (map, &dx, &dy); |
310 |
break; |
311 |
case '4': |
312 |
dx = -1; |
313 |
dy = 0; |
314 |
map = get_map_from_coord (map, &dx, &dy); |
315 |
map && (mapx -= map->width); |
316 |
break; |
317 |
} |
318 |
|
319 |
--max_distance; |
320 |
} |
321 |
|
322 |
if (!max_distance) |
323 |
snprintf (bigbuf, MAX_BUF, "mapinfo %s error", token); |
324 |
else if (map && map->path[0]) |
325 |
{ |
326 |
int flags = 0; |
327 |
|
328 |
if (map->tile_path[0]) |
329 |
flags |= 1; |
330 |
if (map->tile_path[1]) |
331 |
flags |= 2; |
332 |
if (map->tile_path[2]) |
333 |
flags |= 4; |
334 |
if (map->tile_path[3]) |
335 |
flags |= 8; |
336 |
|
337 |
snprintf (bigbuf, MAX_BUF, "mapinfo %s spatial %d %d %d %d %d %s", token, flags, mapx, mapy, map->width, map->height, map->path); |
338 |
} |
339 |
else |
340 |
snprintf (bigbuf, MAX_BUF, "mapinfo %s nomap", token); |
341 |
} |
342 |
else |
343 |
snprintf (bigbuf, MAX_BUF, "mapinfo %s unsupported", token); |
344 |
|
345 |
pl->socket->send_packet (bigbuf); |
346 |
} |
347 |
|
348 |
/** This is the Setup cmd - easy first implementation */ |
349 |
void |
350 |
SetUp (char *buf, int len, client * ns) |
351 |
{ |
352 |
int s, slen; |
353 |
char *cmd, *param, cmdback[HUGE_BUF]; |
354 |
|
355 |
/* run through the cmds of setup |
356 |
* syntax is setup <cmdname1> <parameter> <cmdname2> <parameter> ... |
357 |
* |
358 |
* we send the status of the cmd back, or a FALSE is the cmd is the server unknown |
359 |
* The client then must sort this out |
360 |
*/ |
361 |
|
362 |
//LOG (llevInfo, "Get SetupCmd:: %s\n", buf); |
363 |
|
364 |
strcpy (cmdback, "setup"); |
365 |
for (s = 0; s < len; ) |
366 |
{ |
367 |
cmd = &buf[s]; |
368 |
|
369 |
/* find the next space, and put a null there */ |
370 |
for (; buf[s] && buf[s] != ' '; s++) |
371 |
; |
372 |
|
373 |
buf[s++] = 0; |
374 |
|
375 |
while (buf[s] == ' ') |
376 |
s++; |
377 |
|
378 |
if (s >= len) |
379 |
break; |
380 |
|
381 |
param = &buf[s]; |
382 |
|
383 |
for (; buf[s] && buf[s] != ' '; s++) |
384 |
; |
385 |
|
386 |
buf[s++] = 0; |
387 |
|
388 |
while (buf[s] == ' ') |
389 |
s++; |
390 |
|
391 |
slen = strlen (cmdback); |
392 |
safe_strcat (cmdback, " ", &slen, HUGE_BUF); |
393 |
safe_strcat (cmdback, cmd, &slen, HUGE_BUF); |
394 |
safe_strcat (cmdback, " ", &slen, HUGE_BUF); |
395 |
|
396 |
if (!strcmp (cmd, "sound")) |
397 |
{ |
398 |
ns->sound = atoi (param); |
399 |
safe_strcat (cmdback, param, &slen, HUGE_BUF); |
400 |
} |
401 |
else if (!strcmp (cmd, "exp64")) |
402 |
{ |
403 |
ns->exp64 = atoi (param); |
404 |
safe_strcat (cmdback, param, &slen, HUGE_BUF); |
405 |
} |
406 |
else if (!strcmp (cmd, "spellmon")) |
407 |
{ |
408 |
ns->monitor_spells = atoi (param); |
409 |
safe_strcat (cmdback, param, &slen, HUGE_BUF); |
410 |
} |
411 |
else if (!strcmp (cmd, "darkness")) |
412 |
{ |
413 |
ns->darkness = atoi (param); |
414 |
safe_strcat (cmdback, param, &slen, HUGE_BUF); |
415 |
} |
416 |
else if (!strcmp (cmd, "map1cmd")) |
417 |
{ |
418 |
if (atoi (param)) |
419 |
ns->mapmode = Map1Cmd; |
420 |
/* if beyond this size, need to use map1cmd no matter what */ |
421 |
if (ns->mapx > 11 || ns->mapy > 11) |
422 |
ns->mapmode = Map1Cmd; |
423 |
safe_strcat (cmdback, ns->mapmode == Map1Cmd ? "1" : "0", &slen, HUGE_BUF); |
424 |
} |
425 |
else if (!strcmp (cmd, "map1acmd")) |
426 |
{ |
427 |
if (atoi (param)) |
428 |
ns->mapmode = Map1aCmd; |
429 |
/* if beyond this size, need to use map1acmd no matter what */ |
430 |
if (ns->mapx > 11 || ns->mapy > 11) |
431 |
ns->mapmode = Map1aCmd; |
432 |
safe_strcat (cmdback, ns->mapmode == Map1aCmd ? "1" : "0", &slen, HUGE_BUF); |
433 |
} |
434 |
else if (!strcmp (cmd, "newmapcmd")) |
435 |
{ |
436 |
ns->newmapcmd = atoi (param); |
437 |
safe_strcat (cmdback, param, &slen, HUGE_BUF); |
438 |
// } else if (!strcmp(cmd,"plugincmd")) { |
439 |
// ns->plugincmd = atoi(param); |
440 |
// safe_strcat(cmdback, param, &slen, HUGE_BUF); |
441 |
} |
442 |
else if (!strcmp (cmd, "mapinfocmd")) |
443 |
{ |
444 |
ns->mapinfocmd = atoi (param); |
445 |
safe_strcat (cmdback, "1", &slen, HUGE_BUF); |
446 |
} |
447 |
else if (!strcmp (cmd, "extcmd")) |
448 |
{ |
449 |
ns->extcmd = atoi (param); |
450 |
safe_strcat (cmdback, "1", &slen, HUGE_BUF); |
451 |
} |
452 |
else if (!strcmp (cmd, "extmap")) |
453 |
{ |
454 |
ns->extmap = atoi (param); |
455 |
safe_strcat (cmdback, "1", &slen, HUGE_BUF); |
456 |
} |
457 |
else if (!strcmp (cmd, "facecache")) |
458 |
{ |
459 |
ns->facecache = atoi (param); |
460 |
safe_strcat (cmdback, param, &slen, HUGE_BUF); |
461 |
} |
462 |
else if (!strcmp (cmd, "faceset")) |
463 |
{ |
464 |
char tmpbuf[20]; |
465 |
int q = atoi (param); |
466 |
|
467 |
if (is_valid_faceset (q)) |
468 |
ns->faceset = q; |
469 |
sprintf (tmpbuf, "%d", ns->faceset); |
470 |
safe_strcat (cmdback, tmpbuf, &slen, HUGE_BUF); |
471 |
/* if the client is using faceset, it knows about image2 command */ |
472 |
ns->image2 = 1; |
473 |
} |
474 |
else if (!strcmp (cmd, "itemcmd")) |
475 |
{ |
476 |
/* Version of the item protocol command to use. Currently, |
477 |
* only supported versions are 1 and 2. Using a numeric |
478 |
* value will make it very easy to extend this in the future. |
479 |
*/ |
480 |
char tmpbuf[20]; |
481 |
int q = atoi (param); |
482 |
|
483 |
if (q < 1 || q > 2) |
484 |
{ |
485 |
strcpy (tmpbuf, "FALSE"); |
486 |
} |
487 |
else |
488 |
{ |
489 |
ns->itemcmd = q; |
490 |
sprintf (tmpbuf, "%d", ns->itemcmd); |
491 |
} |
492 |
safe_strcat (cmdback, tmpbuf, &slen, HUGE_BUF); |
493 |
} |
494 |
else if (!strcmp (cmd, "mapsize")) |
495 |
{ |
496 |
int x, y = 0; |
497 |
char tmpbuf[MAX_BUF], *cp; |
498 |
|
499 |
x = atoi (param); |
500 |
for (cp = param; *cp != 0; cp++) |
501 |
if (*cp == 'x' || *cp == 'X') |
502 |
{ |
503 |
y = atoi (cp + 1); |
504 |
break; |
505 |
} |
506 |
if (x < 9 || y < 9 || x > MAP_CLIENT_X || y > MAP_CLIENT_Y) |
507 |
{ |
508 |
sprintf (tmpbuf, " %dx%d", MAP_CLIENT_X, MAP_CLIENT_Y); |
509 |
safe_strcat (cmdback, tmpbuf, &slen, HUGE_BUF); |
510 |
} |
511 |
else |
512 |
{ |
513 |
ns->mapx = x; |
514 |
ns->mapy = y; |
515 |
/* better to send back what we are really using and not the |
516 |
* param as given to us in case it gets parsed differently. |
517 |
*/ |
518 |
sprintf (tmpbuf, "%dx%d", x, y); |
519 |
safe_strcat (cmdback, tmpbuf, &slen, HUGE_BUF); |
520 |
/* If beyond this size and still using orig map command, need to |
521 |
* go to map1cmd. |
522 |
*/ |
523 |
if ((x > 11 || y > 11) && ns->mapmode == Map0Cmd) |
524 |
ns->mapmode = Map1Cmd; |
525 |
} |
526 |
} |
527 |
else if (!strcmp (cmd, "extendedMapInfos")) |
528 |
{ |
529 |
/* Added by tchize |
530 |
* prepare to use the mapextended command |
531 |
*/ |
532 |
char tmpbuf[20]; |
533 |
|
534 |
ns->ext_mapinfos = (atoi (param)); |
535 |
sprintf (tmpbuf, "%d", ns->ext_mapinfos); |
536 |
safe_strcat (cmdback, tmpbuf, &slen, HUGE_BUF); |
537 |
} |
538 |
else if (!strcmp (cmd, "extendedTextInfos")) |
539 |
{ |
540 |
/* Added by tchize |
541 |
* prepare to use the extended text commands |
542 |
* Client toggle this to non zero to get exttext |
543 |
*/ |
544 |
char tmpbuf[20]; |
545 |
|
546 |
ns->has_readable_type = (atoi (param)); |
547 |
sprintf (tmpbuf, "%d", ns->has_readable_type); |
548 |
safe_strcat (cmdback, tmpbuf, &slen, HUGE_BUF); |
549 |
} |
550 |
else |
551 |
{ |
552 |
/* Didn't get a setup command we understood - |
553 |
* report a failure to the client. |
554 |
*/ |
555 |
safe_strcat (cmdback, "FALSE", &slen, HUGE_BUF); |
556 |
} |
557 |
} /* for processing all the setup commands */ |
558 |
|
559 |
LOG (llevInfo, "SendBack SetupCmd:: %s\n", cmdback); |
560 |
ns->send_packet (cmdback); |
561 |
} |
562 |
|
563 |
/** |
564 |
* The client has requested to be added to the game. |
565 |
* This is what takes care of it. We tell the client how things worked out. |
566 |
* I am not sure if this file is the best place for this function. however, |
567 |
* it either has to be here or init_sockets needs to be exported. |
568 |
*/ |
569 |
void |
570 |
AddMeCmd (char *buf, int len, client * ns) |
571 |
{ |
572 |
if (ns->status != Ns_Add || add_player (ns)) |
573 |
ns->send_packet ("addme_failed"); |
574 |
else |
575 |
ns->send_packet ("addme_success"); |
576 |
} |
577 |
|
578 |
/** Reply to ExtendedInfos command */ |
579 |
void |
580 |
ToggleExtendedInfos (char *buf, int len, client * ns) |
581 |
{ |
582 |
char cmdback[MAX_BUF]; |
583 |
char command[50]; |
584 |
int info, nextinfo; |
585 |
|
586 |
cmdback[0] = '\0'; |
587 |
nextinfo = 0; |
588 |
|
589 |
while (1) |
590 |
{ |
591 |
/* 1. Extract an info */ |
592 |
info = nextinfo; |
593 |
|
594 |
while ((info < len) && (buf[info] == ' ')) |
595 |
info++; |
596 |
|
597 |
if (info >= len) |
598 |
break; |
599 |
|
600 |
nextinfo = info + 1; |
601 |
|
602 |
while ((nextinfo < len) && (buf[nextinfo] != ' ')) |
603 |
nextinfo++; |
604 |
|
605 |
if (nextinfo - info >= 49) /*Erroneous info asked */ |
606 |
continue; |
607 |
|
608 |
strncpy (command, &(buf[info]), nextinfo - info); |
609 |
|
610 |
/* 2. Interpret info */ |
611 |
if (!strcmp ("smooth", command)) |
612 |
/* Toggle smoothing */ |
613 |
ns->EMI_smooth = !ns->EMI_smooth; |
614 |
else |
615 |
/*bad value */; |
616 |
|
617 |
/*3. Next info */ |
618 |
} |
619 |
|
620 |
strcpy (cmdback, "ExtendedInfoSet"); |
621 |
|
622 |
if (ns->EMI_smooth) |
623 |
{ |
624 |
strcat (cmdback, " "); |
625 |
strcat (cmdback, "smoothing"); |
626 |
} |
627 |
|
628 |
ns->send_packet (cmdback); |
629 |
} |
630 |
|
631 |
/* |
632 |
#define MSG_TYPE_BOOK 1 |
633 |
#define MSG_TYPE_CARD 2 |
634 |
#define MSG_TYPE_PAPER 3 |
635 |
#define MSG_TYPE_SIGN 4 |
636 |
#define MSG_TYPE_MONUMENT 5 |
637 |
#define MSG_TYPE_SCRIPTED_DIALOG 6*/ |
638 |
|
639 |
/** Reply to ExtendedInfos command */ |
640 |
void |
641 |
ToggleExtendedText (char *buf, int len, client * ns) |
642 |
{ |
643 |
char cmdback[MAX_BUF]; |
644 |
char temp[10]; |
645 |
char command[50]; |
646 |
int info, nextinfo, i, flag; |
647 |
|
648 |
cmdback[0] = '\0'; |
649 |
|
650 |
nextinfo = 0; |
651 |
while (1) |
652 |
{ |
653 |
/* 1. Extract an info */ |
654 |
info = nextinfo; |
655 |
|
656 |
while ((info < len) && (buf[info] == ' ')) |
657 |
info++; |
658 |
|
659 |
if (info >= len) |
660 |
break; |
661 |
|
662 |
nextinfo = info + 1; |
663 |
|
664 |
while ((nextinfo < len) && (buf[nextinfo] != ' ')) |
665 |
nextinfo++; |
666 |
|
667 |
if (nextinfo - info >= 49) /*Erroneous info asked */ |
668 |
continue; |
669 |
|
670 |
strncpy (command, &(buf[info]), nextinfo - info); |
671 |
command[nextinfo - info] = '\0'; |
672 |
/* 2. Interpret info */ |
673 |
i = sscanf (command, "%d", &flag); |
674 |
|
675 |
if ((i == 1) && (flag > 0) && (flag <= MSG_TYPE_LAST)) |
676 |
ns->supported_readables |= (1 << flag); |
677 |
/*3. Next info */ |
678 |
} |
679 |
|
680 |
/* Send resulting state */ |
681 |
strcpy (cmdback, "ExtendedTextSet"); |
682 |
|
683 |
for (i = 0; i <= MSG_TYPE_LAST; i++) |
684 |
if (ns->supported_readables & (1 << i)) |
685 |
{ |
686 |
strcat (cmdback, " "); |
687 |
snprintf (temp, sizeof (temp), "%d", i); |
688 |
strcat (cmdback, temp); |
689 |
} |
690 |
|
691 |
ns->send_packet (cmdback); |
692 |
} |
693 |
|
694 |
/** |
695 |
* A lot like the old AskSmooth (in fact, now called by AskSmooth). |
696 |
* Basically, it makes no sense to wait for the client to request a |
697 |
* a piece of data from us that we know the client wants. So |
698 |
* if we know the client wants it, might as well push it to the |
699 |
* client. |
700 |
*/ |
701 |
static void |
702 |
SendSmooth (client *ns, uint16 face) |
703 |
{ |
704 |
uint16 smoothface; |
705 |
|
706 |
/* If we can't find a face, return and set it so we won't try to send this |
707 |
* again. |
708 |
*/ |
709 |
if ((!FindSmooth (face, &smoothface)) && (!FindSmooth (smooth_face->number, &smoothface))) |
710 |
{ |
711 |
|
712 |
LOG (llevError, "could not findsmooth for %d. Neither default (%s)\n", face, &smooth_face->name); |
713 |
ns->faces_sent[face] |= NS_FACESENT_SMOOTH; |
714 |
return; |
715 |
} |
716 |
|
717 |
if (!(ns->faces_sent[smoothface] & NS_FACESENT_FACE)) |
718 |
esrv_send_face (ns, smoothface, 0); |
719 |
|
720 |
ns->faces_sent[face] |= NS_FACESENT_SMOOTH; |
721 |
|
722 |
packet sl; |
723 |
|
724 |
sl << "smooth " |
725 |
<< uint16 (face) |
726 |
<< uint16 (smoothface); |
727 |
|
728 |
ns->send_packet (sl); |
729 |
} |
730 |
|
731 |
/** |
732 |
* Tells client the picture it has to use |
733 |
* to smooth a picture number given as argument. |
734 |
*/ |
735 |
void |
736 |
AskSmooth (char *buf, int len, client *ns) |
737 |
{ |
738 |
SendSmooth (ns, atoi (buf)); |
739 |
} |
740 |
|
741 |
/** |
742 |
* This handles the general commands from the client (ie, north, fire, cast, |
743 |
* etc.) |
744 |
*/ |
745 |
void |
746 |
PlayerCmd (char *buf, int len, player *pl) |
747 |
{ |
748 |
/* Check if there is a count. In theory, a zero count could also be |
749 |
* sent, so check for that also. |
750 |
*/ |
751 |
if (atoi (buf) || buf[0] == '0') |
752 |
{ |
753 |
pl->count = atoi ((char *) buf); |
754 |
|
755 |
buf = strchr (buf, ' '); /* advance beyond the numbers */ |
756 |
if (!buf) |
757 |
return; |
758 |
|
759 |
buf++; |
760 |
} |
761 |
|
762 |
execute_newserver_command (pl->ob, (char *) buf); |
763 |
|
764 |
/* Perhaps something better should be done with a left over count. |
765 |
* Cleaning up the input should probably be done first - all actions |
766 |
* for the command that issued the count should be done before any other |
767 |
* commands. |
768 |
*/ |
769 |
pl->count = 0; |
770 |
} |
771 |
|
772 |
|
773 |
/** |
774 |
* This handles the general commands from the client (ie, north, fire, cast, |
775 |
* etc.). It is a lot like PlayerCmd above, but is called with the |
776 |
* 'ncom' method which gives more information back to the client so it |
777 |
* can throttle. |
778 |
*/ |
779 |
void |
780 |
NewPlayerCmd (char *buf, int len, player *pl) |
781 |
{ |
782 |
if (len <= 6) |
783 |
{ |
784 |
LOG (llevDebug, "Corrupt ncom command <%s> not long enough - discarding\n", buf); |
785 |
return; |
786 |
} |
787 |
|
788 |
uint16 cmdid = net_uint16 ((uint8 *)buf); |
789 |
sint32 repeat = net_sint32 ((uint8 *)buf + 2); |
790 |
|
791 |
/* -1 is special - no repeat, but don't update */ |
792 |
if (repeat != -1) |
793 |
pl->count = repeat; |
794 |
|
795 |
buf += 6; //len -= 6; |
796 |
|
797 |
execute_newserver_command (pl->ob, buf); |
798 |
|
799 |
/* Perhaps something better should be done with a left over count. |
800 |
* Cleaning up the input should probably be done first - all actions |
801 |
* for the command that issued the count should be done before any other |
802 |
* commands. |
803 |
*/ |
804 |
pl->count = 0; |
805 |
|
806 |
//TODO: schmorp thinks whatever this calculates, it makes no sense at all |
807 |
int time = FABS (pl->ob->speed) < 0.001 |
808 |
? time = MAX_TIME * 100 |
809 |
: time = (int) (MAX_TIME / FABS (pl->ob->speed)); |
810 |
|
811 |
/* Send confirmation of command execution now */ |
812 |
packet sl; |
813 |
sl << "comc " << uint16 (cmdid) << uint32 (time); |
814 |
pl->socket->send_packet (sl); |
815 |
} |
816 |
|
817 |
|
818 |
/** This is a reply to a previous query. */ |
819 |
void |
820 |
ReplyCmd (char *buf, int len, player *pl) |
821 |
{ |
822 |
/* This is to synthesize how the data would be stored if it |
823 |
* was normally entered. A bit of a hack, and should be cleaned up |
824 |
* once all the X11 code is removed from the server. |
825 |
* |
826 |
* We pass 13 to many of the functions because this way they |
827 |
* think it was the carriage return that was entered, and the |
828 |
* function then does not try to do additional input. |
829 |
*/ |
830 |
snprintf (pl->write_buf, sizeof (pl->write_buf), ":%s", buf); |
831 |
|
832 |
/* this avoids any hacking here */ |
833 |
|
834 |
switch (pl->state) |
835 |
{ |
836 |
case ST_PLAYING: |
837 |
LOG (llevError, "Got reply message with ST_PLAYING input state\n"); |
838 |
break; |
839 |
|
840 |
case ST_PLAY_AGAIN: |
841 |
/* We can check this for return value (2==quit). Maybe we |
842 |
* should, and do something appropriate? |
843 |
*/ |
844 |
receive_play_again (pl->ob, buf[0]); |
845 |
break; |
846 |
|
847 |
case ST_ROLL_STAT: |
848 |
key_roll_stat (pl->ob, buf[0]); |
849 |
break; |
850 |
|
851 |
case ST_CHANGE_CLASS: |
852 |
|
853 |
key_change_class (pl->ob, buf[0]); |
854 |
break; |
855 |
|
856 |
case ST_CONFIRM_QUIT: |
857 |
key_confirm_quit (pl->ob, buf[0]); |
858 |
break; |
859 |
|
860 |
case ST_CONFIGURE: |
861 |
LOG (llevError, "In client input handling, but into configure state\n"); |
862 |
pl->state = ST_PLAYING; |
863 |
break; |
864 |
|
865 |
case ST_GET_NAME: |
866 |
receive_player_name (pl->ob, 13); |
867 |
break; |
868 |
|
869 |
case ST_GET_PASSWORD: |
870 |
case ST_CONFIRM_PASSWORD: |
871 |
receive_player_password (pl->ob, 13); |
872 |
break; |
873 |
|
874 |
case ST_GET_PARTY_PASSWORD: /* Get password for party */ |
875 |
receive_party_password (pl->ob, 13); |
876 |
break; |
877 |
|
878 |
default: |
879 |
LOG (llevError, "Unknown input state: %d\n", pl->state); |
880 |
} |
881 |
} |
882 |
|
883 |
/** |
884 |
* Client tells its version. If there is a mismatch, we close the |
885 |
* socket. In real life, all we should care about is the client having |
886 |
* something older than the server. If we assume the client will be |
887 |
* backwards compatible, having it be a later version should not be a |
888 |
* problem. |
889 |
*/ |
890 |
void |
891 |
VersionCmd (char *buf, int len, client * ns) |
892 |
{ |
893 |
if (!buf) |
894 |
{ |
895 |
LOG (llevError, "CS: received corrupted version command\n"); |
896 |
return; |
897 |
} |
898 |
|
899 |
ns->cs_version = atoi (buf); |
900 |
ns->sc_version = ns->cs_version; |
901 |
|
902 |
LOG (llevDebug, "connection from client <%s>\n", buf); |
903 |
|
904 |
|
905 |
//TODO: should log here just for statistics |
906 |
|
907 |
//if (VERSION_CS != ns->cs_version) |
908 |
// unchecked; |
909 |
|
910 |
char *cp = strchr (buf + 1, ' '); |
911 |
if (!cp) |
912 |
return; |
913 |
|
914 |
ns->sc_version = atoi (cp); |
915 |
|
916 |
//if (VERSION_SC != ns->sc_version) |
917 |
// unchecked; |
918 |
|
919 |
cp = strchr (cp + 1, ' '); |
920 |
|
921 |
if (cp) |
922 |
{ |
923 |
assign (ns->version, cp + 1); |
924 |
|
925 |
if (ns->sc_version < 1026) |
926 |
ns->send_packet_printf ("drawinfo %d %s", NDI_RED, |
927 |
"**** VERSION WARNING ****\n**** CLIENT IS TOO OLD!! UPDATE THE CLIENT!! ****"); |
928 |
} |
929 |
} |
930 |
|
931 |
/** sound related functions. */ |
932 |
void |
933 |
SetSound (char *buf, int len, client * ns) |
934 |
{ |
935 |
ns->sound = atoi (buf); |
936 |
} |
937 |
|
938 |
/** client wants the map resent */ |
939 |
|
940 |
void |
941 |
MapRedrawCmd (char *buf, int len, player *pl) |
942 |
{ |
943 |
/* This function is currently disabled; just clearing the map state results in |
944 |
* display errors. It should clear the cache and send a newmap command. |
945 |
* Unfortunately this solution does not work because some client versions send |
946 |
* a mapredraw command after receiving a newmap command. |
947 |
*/ |
948 |
} |
949 |
|
950 |
/** |
951 |
* Moves an object (typically, container to inventory). |
952 |
* syntax is: move (to) (tag) (nrof) |
953 |
*/ |
954 |
void |
955 |
MoveCmd (char *buf, int len, player *pl) |
956 |
{ |
957 |
int vals[3], i; |
958 |
|
959 |
/* A little funky here. We only cycle for 2 records, because |
960 |
* we obviously are not going to find a space after the third |
961 |
* record. Perhaps we should just replace this with a |
962 |
* sscanf? |
963 |
*/ |
964 |
for (i = 0; i < 2; i++) |
965 |
{ |
966 |
vals[i] = atoi (buf); |
967 |
|
968 |
if (!(buf = strchr (buf, ' '))) |
969 |
{ |
970 |
LOG (llevError, "Incomplete move command: %s\n", buf); |
971 |
return; |
972 |
} |
973 |
|
974 |
buf++; |
975 |
} |
976 |
|
977 |
vals[2] = atoi (buf); |
978 |
|
979 |
/* LOG(llevDebug,"Move item %d (nrof=%d) to %d.\n", vals[1], vals[2], vals[0]);*/ |
980 |
esrv_move_object (pl->ob, vals[0], vals[1], vals[2]); |
981 |
} |
982 |
|
983 |
/****************************************************************************** |
984 |
* |
985 |
* Start of commands the server sends to the client. |
986 |
* |
987 |
******************************************************************************/ |
988 |
|
989 |
/** |
990 |
* Asks the client to query the user. This way, the client knows |
991 |
* it needs to send something back (vs just printing out a message) |
992 |
*/ |
993 |
void |
994 |
send_query (client *ns, uint8 flags, char *text) |
995 |
{ |
996 |
ns->send_packet_printf ("query %d %s", flags, text ? text : ""); |
997 |
} |
998 |
|
999 |
#define AddIfInt64(Old,New,Type) if (Old != New) {\ |
1000 |
Old = New; \ |
1001 |
sl << uint8 (Type) << uint64 (New); \ |
1002 |
} |
1003 |
|
1004 |
#define AddIfInt(Old,New,Type) if (Old != New) {\ |
1005 |
Old = New; \ |
1006 |
sl << uint8 (Type) << uint32 (New); \ |
1007 |
} |
1008 |
|
1009 |
#define AddIfShort(Old,New,Type) if (Old != New) {\ |
1010 |
Old = New; \ |
1011 |
sl << uint8 (Type) << uint16 (New); \ |
1012 |
} |
1013 |
|
1014 |
#define AddIfFloat(Old,New,Type) if (Old != New) {\ |
1015 |
Old = New; \ |
1016 |
sl << uint8 (Type) << uint32 (New*FLOAT_MULTI); \ |
1017 |
} |
1018 |
|
1019 |
#define AddIfString(Old,New,Type) if (Old == NULL || strcmp(Old,New)) {\ |
1020 |
free(Old); Old = strdup (New);\ |
1021 |
sl << uint8 (Type) << data8 (New); \ |
1022 |
} |
1023 |
|
1024 |
/** |
1025 |
* Sends a statistics update. We look at the old values, |
1026 |
* and only send what has changed. Stat mapping values are in newclient.h |
1027 |
* Since this gets sent a lot, this is actually one of the few binary |
1028 |
* commands for now. |
1029 |
*/ |
1030 |
void |
1031 |
esrv_update_stats (player *pl) |
1032 |
{ |
1033 |
char buf[MAX_BUF]; |
1034 |
uint16 flags; |
1035 |
|
1036 |
packet sl; |
1037 |
sl << "stats "; |
1038 |
|
1039 |
if (pl->ob) |
1040 |
{ |
1041 |
AddIfShort (pl->last_stats.hp, pl->ob->stats.hp, CS_STAT_HP); |
1042 |
AddIfShort (pl->last_stats.maxhp, pl->ob->stats.maxhp, CS_STAT_MAXHP); |
1043 |
AddIfShort (pl->last_stats.sp, pl->ob->stats.sp, CS_STAT_SP); |
1044 |
AddIfShort (pl->last_stats.maxsp, pl->ob->stats.maxsp, CS_STAT_MAXSP); |
1045 |
AddIfShort (pl->last_stats.grace, pl->ob->stats.grace, CS_STAT_GRACE); |
1046 |
AddIfShort (pl->last_stats.maxgrace, pl->ob->stats.maxgrace, CS_STAT_MAXGRACE); |
1047 |
AddIfShort (pl->last_stats.Str, pl->ob->stats.Str, CS_STAT_STR); |
1048 |
AddIfShort (pl->last_stats.Int, pl->ob->stats.Int, CS_STAT_INT); |
1049 |
AddIfShort (pl->last_stats.Pow, pl->ob->stats.Pow, CS_STAT_POW); |
1050 |
AddIfShort (pl->last_stats.Wis, pl->ob->stats.Wis, CS_STAT_WIS); |
1051 |
AddIfShort (pl->last_stats.Dex, pl->ob->stats.Dex, CS_STAT_DEX); |
1052 |
AddIfShort (pl->last_stats.Con, pl->ob->stats.Con, CS_STAT_CON); |
1053 |
AddIfShort (pl->last_stats.Cha, pl->ob->stats.Cha, CS_STAT_CHA); |
1054 |
} |
1055 |
|
1056 |
if (pl->socket->exp64) |
1057 |
for (int s = 0; s < NUM_SKILLS; s++) |
1058 |
if (pl->last_skill_ob[s] && pl->last_skill_exp[s] != pl->last_skill_ob[s]->stats.exp) |
1059 |
{ |
1060 |
/* Always send along the level if exp changes. This is only |
1061 |
* 1 extra byte, but keeps processing simpler. |
1062 |
*/ |
1063 |
sl << uint8 (s + CS_STAT_SKILLINFO) |
1064 |
<< uint8 (pl->last_skill_ob[s]->level) |
1065 |
<< uint64 (pl->last_skill_ob[s]->stats.exp); |
1066 |
|
1067 |
pl->last_skill_exp[s] = pl->last_skill_ob[s]->stats.exp; |
1068 |
} |
1069 |
|
1070 |
if (pl->socket->exp64) |
1071 |
{ AddIfInt64 (pl->last_stats.exp, pl->ob->stats.exp, CS_STAT_EXP64) } |
1072 |
else |
1073 |
{ AddIfInt (pl->last_stats.exp, (int) pl->ob->stats.exp, CS_STAT_EXP) } |
1074 |
|
1075 |
AddIfShort (pl->last_level, (char) pl->ob->level, CS_STAT_LEVEL); |
1076 |
AddIfShort (pl->last_stats.wc, pl->ob->stats.wc, CS_STAT_WC); |
1077 |
AddIfShort (pl->last_stats.ac, pl->ob->stats.ac, CS_STAT_AC); |
1078 |
AddIfShort (pl->last_stats.dam, pl->ob->stats.dam, CS_STAT_DAM); |
1079 |
AddIfFloat (pl->last_speed, pl->ob->speed, CS_STAT_SPEED); |
1080 |
AddIfShort (pl->last_stats.food, pl->ob->stats.food, CS_STAT_FOOD); |
1081 |
AddIfFloat (pl->last_weapon_sp, pl->weapon_sp, CS_STAT_WEAP_SP); |
1082 |
AddIfInt (pl->last_weight_limit, (sint32) weight_limit[pl->ob->stats.Str], CS_STAT_WEIGHT_LIM); |
1083 |
flags = 0; |
1084 |
|
1085 |
if (pl->fire_on) |
1086 |
flags |= SF_FIREON; |
1087 |
|
1088 |
if (pl->run_on) |
1089 |
flags |= SF_RUNON; |
1090 |
|
1091 |
AddIfShort (pl->last_flags, flags, CS_STAT_FLAGS); |
1092 |
|
1093 |
if (pl->socket->sc_version < 1025) |
1094 |
{ AddIfShort (pl->last_resist[ATNR_PHYSICAL], pl->ob->resist[ATNR_PHYSICAL], CS_STAT_ARMOUR) } |
1095 |
else |
1096 |
for (int i = 0; i < NROFATTACKS; i++) |
1097 |
{ |
1098 |
/* Skip ones we won't send */ |
1099 |
if (atnr_cs_stat[i] == -1) |
1100 |
continue; |
1101 |
|
1102 |
AddIfShort (pl->last_resist[i], pl->ob->resist[i], (char) atnr_cs_stat[i]); |
1103 |
} |
1104 |
|
1105 |
if (pl->socket->monitor_spells) |
1106 |
{ |
1107 |
AddIfInt (pl->last_path_attuned, pl->ob->path_attuned, CS_STAT_SPELL_ATTUNE); |
1108 |
AddIfInt (pl->last_path_repelled, pl->ob->path_repelled, CS_STAT_SPELL_REPEL); |
1109 |
AddIfInt (pl->last_path_denied, pl->ob->path_denied, CS_STAT_SPELL_DENY); |
1110 |
} |
1111 |
|
1112 |
rangetostring (pl->ob, buf); /* we want use the new fire & run system in new client */ |
1113 |
AddIfString (pl->socket->stats.range, buf, CS_STAT_RANGE); |
1114 |
set_title (pl->ob, buf); |
1115 |
AddIfString (pl->socket->stats.title, buf, CS_STAT_TITLE); |
1116 |
|
1117 |
/* Only send it away if we have some actual data */ |
1118 |
if (sl.length () > 6) |
1119 |
pl->socket->send_packet (sl); |
1120 |
} |
1121 |
|
1122 |
/** |
1123 |
* Tells the client that here is a player it should start using. |
1124 |
*/ |
1125 |
void |
1126 |
esrv_new_player (player *pl, uint32 weight) |
1127 |
{ |
1128 |
pl->last_weight = weight; |
1129 |
|
1130 |
packet sl; |
1131 |
sl << "player "; |
1132 |
|
1133 |
sl << uint32 (pl->ob->count) |
1134 |
<< uint32 (weight) |
1135 |
<< uint32 (pl->ob->face->number) |
1136 |
<< data8 (pl->ob->name); |
1137 |
|
1138 |
pl->socket->send_packet (sl); |
1139 |
SET_FLAG (pl->ob, FLAG_CLIENT_SENT); |
1140 |
} |
1141 |
|
1142 |
/** |
1143 |
* Need to send an animation sequence to the client. |
1144 |
* We will send appropriate face commands to the client if we haven't |
1145 |
* sent them the face yet (this can become quite costly in terms of |
1146 |
* how much we are sending - on the other hand, this should only happen |
1147 |
* when the player logs in and picks stuff up. |
1148 |
*/ |
1149 |
void |
1150 |
esrv_send_animation (client * ns, short anim_num) |
1151 |
{ |
1152 |
/* Do some checking on the anim_num we got. Note that the animations |
1153 |
* are added in contigous order, so if the number is in the valid |
1154 |
* range, it must be a valid animation. |
1155 |
*/ |
1156 |
if (anim_num < 0 || anim_num > num_animations) |
1157 |
{ |
1158 |
LOG (llevError, "esrv_send_anim (%d) out of bounds??\n", anim_num); |
1159 |
return; |
1160 |
} |
1161 |
|
1162 |
packet sl; |
1163 |
|
1164 |
sl << "anim " |
1165 |
<< uint16 (anim_num) |
1166 |
<< uint16 (0); /* flags - not used right now */ |
1167 |
|
1168 |
/* Build up the list of faces. Also, send any information (ie, the |
1169 |
* the face itself) down to the client. |
1170 |
*/ |
1171 |
for (int i = 0; i < animations[anim_num].num_animations; i++) |
1172 |
{ |
1173 |
if (!(ns->faces_sent[animations[anim_num].faces[i]] & NS_FACESENT_FACE)) |
1174 |
esrv_send_face (ns, animations[anim_num].faces[i], 0); |
1175 |
|
1176 |
sl << uint16 (animations[anim_num].faces[i]); /* flags - not used right now */ |
1177 |
} |
1178 |
|
1179 |
ns->send_packet (sl); |
1180 |
|
1181 |
ns->anims_sent[anim_num] = 1; |
1182 |
} |
1183 |
|
1184 |
|
1185 |
/****************************************************************************** |
1186 |
* |
1187 |
* Start of map related commands. |
1188 |
* |
1189 |
******************************************************************************/ |
1190 |
|
1191 |
/** |
1192 |
* This adds face_num to a map cell at x,y. If the client doesn't have |
1193 |
* the face yet, we will also send it. |
1194 |
*/ |
1195 |
static void |
1196 |
esrv_map_setbelow (client * ns, int x, int y, short face_num, struct Map *newmap) |
1197 |
{ |
1198 |
if (newmap->cells[x][y].count >= MAP_LAYERS) |
1199 |
{ |
1200 |
//TODO: one or the other, can't both have abort and return, verify and act |
1201 |
LOG (llevError, "Too many faces in map cell %d %d\n", x, y); |
1202 |
return; |
1203 |
abort (); |
1204 |
} |
1205 |
|
1206 |
newmap->cells[x][y].faces[newmap->cells[x][y].count] = face_num; |
1207 |
newmap->cells[x][y].count++; |
1208 |
|
1209 |
if (!(ns->faces_sent[face_num] & NS_FACESENT_FACE)) |
1210 |
esrv_send_face (ns, face_num, 0); |
1211 |
} |
1212 |
|
1213 |
/** Clears a map cell */ |
1214 |
static void |
1215 |
map_clearcell (struct MapCell *cell, int face0, int face1, int face2, int count) |
1216 |
{ |
1217 |
cell->faces[0] = face0; |
1218 |
cell->faces[1] = face1; |
1219 |
cell->faces[2] = face2; |
1220 |
cell->count = count; |
1221 |
cell->stat_hp = 0; |
1222 |
cell->flags = 0; |
1223 |
cell->player = 0; |
1224 |
} |
1225 |
|
1226 |
#define MAX_HEAD_POS MAX(MAX_CLIENT_X, MAX_CLIENT_Y) |
1227 |
#define MAX_LAYERS 3 |
1228 |
|
1229 |
/* Using a global really isn't a good approach, but saves the over head of |
1230 |
* allocating and deallocating such a block of data each time run through, |
1231 |
* and saves the space of allocating this in the socket object when we only |
1232 |
* need it for this cycle. If the server is ever threaded, this needs to be |
1233 |
* re-examined. |
1234 |
*/ |
1235 |
static object *heads[MAX_HEAD_POS * MAX_HEAD_POS * MAX_LAYERS]; |
1236 |
|
1237 |
/** |
1238 |
* Returns true if any of the heads for this |
1239 |
* space is set. Returns false if all are blank - this is used |
1240 |
* for empty space checking. |
1241 |
*/ |
1242 |
static inline int |
1243 |
have_head (int ax, int ay) |
1244 |
{ |
1245 |
if (heads[(ay * MAX_HEAD_POS + ax) * MAX_LAYERS] || |
1246 |
heads[(ay * MAX_HEAD_POS + ax) * MAX_LAYERS + 1] || heads[(ay * MAX_HEAD_POS + ax) * MAX_LAYERS + 2]) |
1247 |
return 1; |
1248 |
|
1249 |
return 0; |
1250 |
} |
1251 |
|
1252 |
/** |
1253 |
* check_head is a bit simplistic version of update_space below. |
1254 |
* basically, it only checks the that the head on space ax,ay at layer |
1255 |
* needs to get sent - if so, it adds the data, sending the head |
1256 |
* if needed, and returning 1. If this no data needs to get |
1257 |
* sent, it returns zero. |
1258 |
*/ |
1259 |
static int |
1260 |
check_head (packet &sl, client &ns, int ax, int ay, int layer) |
1261 |
{ |
1262 |
short face_num; |
1263 |
|
1264 |
if (heads[(ay * MAX_HEAD_POS + ax) * MAX_LAYERS + layer]) |
1265 |
face_num = heads[(ay * MAX_HEAD_POS + ax) * MAX_LAYERS + layer]->face->number; |
1266 |
else |
1267 |
face_num = 0; |
1268 |
|
1269 |
if (face_num != ns.lastmap.cells[ax][ay].faces[layer]) |
1270 |
{ |
1271 |
sl << uint16 (face_num); |
1272 |
if (face_num && !(ns.faces_sent[face_num] & NS_FACESENT_FACE)) |
1273 |
esrv_send_face (&ns, face_num, 0); |
1274 |
|
1275 |
heads[(ay * MAX_HEAD_POS + ax) * MAX_LAYERS + layer] = NULL; |
1276 |
ns.lastmap.cells[ax][ay].faces[layer] = face_num; |
1277 |
return 1; |
1278 |
} |
1279 |
|
1280 |
return 0; /* No change */ |
1281 |
} |
1282 |
|
1283 |
/** |
1284 |
* Removes the need to replicate the same code for each layer. |
1285 |
* this returns true if this space is now in fact different than |
1286 |
* it was. |
1287 |
* sl is the socklist this data is going into. |
1288 |
* ns is the socket we are working on - all the info we care |
1289 |
* about is in this socket structure, so now need not pass the |
1290 |
* entire player object. |
1291 |
* mx and my are map coordinate offsets for map mp |
1292 |
* sx and sy are the offsets into the socket structure that |
1293 |
* holds the old values. |
1294 |
* layer is the layer to update, with 2 being the floor and 0 the |
1295 |
* top layer (this matches what the GET_MAP_FACE and GET_MAP_FACE_OBJ) |
1296 |
* take. Interesting to note that before this function, the map1 function |
1297 |
* numbers the spaces differently - I think this was a leftover from |
1298 |
* the map command, where the faces stack up. Sinces that is no longer |
1299 |
* the case, it seems to make more sense to have these layer values |
1300 |
* actually match. |
1301 |
*/ |
1302 |
static int |
1303 |
update_space (packet &sl, client &ns, maptile *mp, int mx, int my, int sx, int sy, int layer) |
1304 |
{ |
1305 |
object *ob, *head; |
1306 |
uint16 face_num; |
1307 |
int bx, by, i; |
1308 |
|
1309 |
/* If there is a multipart object stored away, treat that as more important. |
1310 |
* If not, then do the normal processing. |
1311 |
*/ |
1312 |
head = heads[(sy * MAX_HEAD_POS + sx) * MAX_LAYERS + layer]; |
1313 |
|
1314 |
/* Check to see if this head is part of the set of objects |
1315 |
* we would normally send for this space. If so, then |
1316 |
* don't use the head value. We need to do the check |
1317 |
* here and not when setting up the heads[] value for two reasons - |
1318 |
* 1) the heads[] values will get used even if the space is not visible. |
1319 |
* 2) its possible the head is not on the same map as a part, and I'd |
1320 |
* rather not need to do the map translation overhead. |
1321 |
* 3) We need to do some extra checking to make sure that we will |
1322 |
* otherwise send the image as this layer, eg, either it matches |
1323 |
* the head value, or is not multipart. |
1324 |
*/ |
1325 |
if (head && !head->more) |
1326 |
{ |
1327 |
for (i = 0; i < MAP_LAYERS; i++) |
1328 |
{ |
1329 |
ob = GET_MAP_FACE_OBJ (mp, mx, my, i); |
1330 |
if (!ob) |
1331 |
continue; |
1332 |
|
1333 |
if (ob->head) |
1334 |
ob = ob->head; |
1335 |
|
1336 |
if (ob == head) |
1337 |
{ |
1338 |
heads[(sy * MAX_HEAD_POS + sx) * MAX_LAYERS + layer] = NULL; |
1339 |
head = NULL; |
1340 |
break; |
1341 |
} |
1342 |
} |
1343 |
} |
1344 |
|
1345 |
ob = head; |
1346 |
if (!ob) |
1347 |
ob = GET_MAP_FACE_OBJ (mp, mx, my, layer); |
1348 |
|
1349 |
/* If there is no object for this space, or if the face for the object |
1350 |
* is the blank face, set the face number to zero. |
1351 |
* else if we have the stored head object for this space, that takes |
1352 |
* precedence over the other object for this space. |
1353 |
* otherwise, we do special head processing |
1354 |
*/ |
1355 |
if (!ob || ob->face == blank_face) |
1356 |
face_num = 0; |
1357 |
else if (head) |
1358 |
{ |
1359 |
/* if this is a head that had previously been stored */ |
1360 |
face_num = ob->face->number; |
1361 |
} |
1362 |
else |
1363 |
{ |
1364 |
/* if the faces for the different parts of a multipart object |
1365 |
* are the same, we only want to send the bottom right most |
1366 |
* portion of the object. That info is in the tail_.. values |
1367 |
* of the head. Note that for the head itself, ob->head will |
1368 |
* be null, so we only do this block if we are working on |
1369 |
* a tail piece. |
1370 |
*/ |
1371 |
|
1372 |
/* tail_x and tail_y will only be set in the head object. If |
1373 |
* this is the head object and these are set, we proceed |
1374 |
* with logic to only send bottom right. Similarly, if |
1375 |
* this is one of the more parts but the head has those values |
1376 |
* set, we want to do the processing. There can be cases where |
1377 |
* the head is not visible but one of its parts is, so we just |
1378 |
* can always expect that ob->arch->tail_x will be true for all |
1379 |
* object we may want to display. |
1380 |
*/ |
1381 |
if ((ob->arch->tail_x || ob->arch->tail_y) || (ob->head && (ob->head->arch->tail_x || ob->head->arch->tail_y))) |
1382 |
{ |
1383 |
|
1384 |
if (ob->head) |
1385 |
head = ob->head; |
1386 |
else |
1387 |
head = ob; |
1388 |
|
1389 |
/* Basically figure out where the offset is from where we are right |
1390 |
* now. the ob->arch->clone.{x,y} values hold the offset that this current |
1391 |
* piece is from the head, and the tail is where the tail is from the |
1392 |
* head. Note that bx and by will equal sx and sy if we are already working |
1393 |
* on the bottom right corner. If ob is the head, the clone values |
1394 |
* will be zero, so the right thing will still happen. |
1395 |
*/ |
1396 |
bx = sx + head->arch->tail_x - ob->arch->clone.x; |
1397 |
by = sy + head->arch->tail_y - ob->arch->clone.y; |
1398 |
|
1399 |
/* I don't think this can ever happen, but better to check for it just |
1400 |
* in case. |
1401 |
*/ |
1402 |
if (bx < sx || by < sy) |
1403 |
{ |
1404 |
LOG (llevError, "update_space: bx (%d) or by (%d) is less than sx (%d) or sy (%d)\n", bx, by, sx, sy); |
1405 |
face_num = 0; |
1406 |
} |
1407 |
/* single part object, multipart object with non merged faces, |
1408 |
* of multipart object already at lower right. |
1409 |
*/ |
1410 |
else if (bx == sx && by == sy) |
1411 |
{ |
1412 |
face_num = ob->face->number; |
1413 |
|
1414 |
/* if this face matches one stored away, clear that one away. |
1415 |
* this code relies on the fact that the map1 commands |
1416 |
* goes from 2 down to 0. |
1417 |
*/ |
1418 |
for (i = 0; i < MAP_LAYERS; i++) |
1419 |
if (heads[(sy * MAX_HEAD_POS + sx) * MAX_LAYERS + i] && |
1420 |
heads[(sy * MAX_HEAD_POS + sx) * MAX_LAYERS + i]->face->number == face_num) |
1421 |
heads[(sy * MAX_HEAD_POS + sx) * MAX_LAYERS + i] = NULL; |
1422 |
} |
1423 |
else |
1424 |
{ |
1425 |
/* If this head is stored away, clear it - otherwise, |
1426 |
* there can be cases where a object is on multiple layers - |
1427 |
* we only want to send it once. |
1428 |
*/ |
1429 |
face_num = head->face->number; |
1430 |
for (i = 0; i < MAP_LAYERS; i++) |
1431 |
if (heads[(by * MAX_HEAD_POS + bx) * MAX_LAYERS + i] && |
1432 |
heads[(by * MAX_HEAD_POS + bx) * MAX_LAYERS + i]->face->number == face_num) |
1433 |
heads[(by * MAX_HEAD_POS + bx) * MAX_LAYERS + i] = NULL; |
1434 |
|
1435 |
/* First, try to put the new head on the same layer. If that is used up, |
1436 |
* then find another layer. |
1437 |
*/ |
1438 |
if (heads[(by * MAX_HEAD_POS + bx) * MAX_LAYERS + layer] == NULL) |
1439 |
{ |
1440 |
heads[(by * MAX_HEAD_POS + bx) * MAX_LAYERS + layer] = head; |
1441 |
} |
1442 |
else |
1443 |
for (i = 0; i < MAX_LAYERS; i++) |
1444 |
{ |
1445 |
if (heads[(by * MAX_HEAD_POS + bx) * MAX_LAYERS + i] == NULL || |
1446 |
heads[(by * MAX_HEAD_POS + bx) * MAX_LAYERS + i] == head) |
1447 |
{ |
1448 |
heads[(by * MAX_HEAD_POS + bx) * MAX_LAYERS + i] = head; |
1449 |
} |
1450 |
} |
1451 |
face_num = 0; /* Don't send this object - we'll send the head later */ |
1452 |
} |
1453 |
} |
1454 |
else |
1455 |
{ |
1456 |
/* In this case, we are already at the lower right or single part object, |
1457 |
* so nothing special |
1458 |
*/ |
1459 |
face_num = ob->face->number; |
1460 |
|
1461 |
/* clear out any head entries that have the same face as this one */ |
1462 |
for (bx = 0; bx < layer; bx++) |
1463 |
if (heads[(sy * MAX_HEAD_POS + sx) * MAX_LAYERS + bx] && |
1464 |
heads[(sy * MAX_HEAD_POS + sx) * MAX_LAYERS + bx]->face->number == face_num) |
1465 |
heads[(sy * MAX_HEAD_POS + sx) * MAX_LAYERS + bx] = NULL; |
1466 |
} |
1467 |
} /* else not already head object or blank face */ |
1468 |
|
1469 |
/* This is a real hack. Basically, if we have nothing to send for this layer, |
1470 |
* but there is a head on the next layer, send that instead. |
1471 |
* Without this, what happens is you can get the case where the player stands |
1472 |
* on the same space as the head. However, if you have overlapping big objects |
1473 |
* of the same type, what happens then is it doesn't think it needs to send |
1474 |
* This tends to make stacking also work/look better. |
1475 |
*/ |
1476 |
if (!face_num && layer > 0 && heads[(sy * MAX_HEAD_POS + sx) * MAX_LAYERS + layer - 1]) |
1477 |
{ |
1478 |
face_num = heads[(sy * MAX_HEAD_POS + sx) * MAX_LAYERS + layer - 1]->face->number; |
1479 |
heads[(sy * MAX_HEAD_POS + sx) * MAX_LAYERS + layer - 1] = NULL; |
1480 |
} |
1481 |
|
1482 |
/* Another hack - because of heads and whatnot, this face may match one |
1483 |
* we already sent for a lower layer. In that case, don't send |
1484 |
* this one. |
1485 |
*/ |
1486 |
if (face_num && layer + 1 < MAP_LAYERS && ns.lastmap.cells[sx][sy].faces[layer + 1] == face_num) |
1487 |
face_num = 0; |
1488 |
|
1489 |
/* We've gotten what face we want to use for the object. Now see if |
1490 |
* if it has changed since we last sent it to the client. |
1491 |
*/ |
1492 |
if (ns.lastmap.cells[sx][sy].faces[layer] != face_num) |
1493 |
{ |
1494 |
ns.lastmap.cells[sx][sy].faces[layer] = face_num; |
1495 |
if (!(ns.faces_sent[face_num] & NS_FACESENT_FACE)) |
1496 |
esrv_send_face (&ns, face_num, 0); |
1497 |
|
1498 |
sl << uint16 (face_num); |
1499 |
return 1; |
1500 |
} |
1501 |
|
1502 |
/* Nothing changed */ |
1503 |
return 0; |
1504 |
} |
1505 |
|
1506 |
/** |
1507 |
* This function is mainly a copy of update_space, |
1508 |
* except it handles update of the smoothing updates, |
1509 |
* not the face updates. |
1510 |
* Removes the need to replicate the same code for each layer. |
1511 |
* this returns true if this smooth is now in fact different |
1512 |
* than it was. |
1513 |
* sl is the socklist this data is going into. |
1514 |
* ns is the socket we are working on - all the info we care |
1515 |
* about is in this socket structure, so know need to pass the |
1516 |
* entire player object. |
1517 |
* mx and my are map coordinate offsets for map mp |
1518 |
* sx and sy are the offsets into the socket structure that |
1519 |
* holds the old values. |
1520 |
* layer is the layer to update, with 2 being the floor and 0 the |
1521 |
* top layer (this matches what the GET_MAP_FACE and GET_MAP_FACE_OBJ |
1522 |
* take. |
1523 |
*/ |
1524 |
|
1525 |
static inline int |
1526 |
update_smooth (packet &sl, client &ns, maptile *mp, int mx, int my, int sx, int sy, int layer) |
1527 |
{ |
1528 |
object *ob; |
1529 |
int smoothlevel; /* old face_num; */ |
1530 |
|
1531 |
ob = GET_MAP_FACE_OBJ (mp, mx, my, layer); |
1532 |
|
1533 |
/* If there is no object for this space, or if the face for the object |
1534 |
* is the blank face, set the smoothlevel to zero. |
1535 |
*/ |
1536 |
if (!ob || ob->face == blank_face || MAP_NOSMOOTH (mp)) |
1537 |
smoothlevel = 0; |
1538 |
else |
1539 |
{ |
1540 |
smoothlevel = ob->smoothlevel; |
1541 |
if (smoothlevel && !(ns.faces_sent[ob->face->number] & NS_FACESENT_SMOOTH)) |
1542 |
SendSmooth (&ns, ob->face->number); |
1543 |
} /* else not already head object or blank face */ |
1544 |
|
1545 |
/* We've gotten what face we want to use for the object. Now see if |
1546 |
* if it has changed since we last sent it to the client. |
1547 |
*/ |
1548 |
if (smoothlevel > 255) |
1549 |
smoothlevel = 255; |
1550 |
else if (smoothlevel < 0) |
1551 |
smoothlevel = 0; |
1552 |
|
1553 |
if (ns.lastmap.cells[sx][sy].smooth[layer] != smoothlevel) |
1554 |
{ |
1555 |
ns.lastmap.cells[sx][sy].smooth[layer] = smoothlevel; |
1556 |
sl << uint8 (smoothlevel); |
1557 |
return 1; |
1558 |
} |
1559 |
|
1560 |
/* Nothing changed */ |
1561 |
return 0; |
1562 |
} |
1563 |
|
1564 |
/** |
1565 |
* Returns the size of a data for a map square as returned by |
1566 |
* mapextended. There are CLIENTMAPX*CLIENTMAPY*LAYERS entries |
1567 |
* available. |
1568 |
*/ |
1569 |
int |
1570 |
getExtendedMapInfoSize (client * ns) |
1571 |
{ |
1572 |
int result = 0; |
1573 |
|
1574 |
if (ns->ext_mapinfos) |
1575 |
{ |
1576 |
if (ns->EMI_smooth) |
1577 |
result += 1; /*One byte for smoothlevel */ |
1578 |
} |
1579 |
|
1580 |
return result; |
1581 |
} |
1582 |
|
1583 |
/** |
1584 |
* This function uses the new map1 protocol command to send the map |
1585 |
* to the client. It is necessary because the old map command supports |
1586 |
* a maximum map size of 15x15. |
1587 |
* This function is much simpler than the old one. This is because |
1588 |
* the old function optimized to send as few face identifiers as possible, |
1589 |
* at the expense of sending more coordinate location (coordinates were |
1590 |
* only 1 byte, faces 2 bytes, so this was a worthwhile savings). Since |
1591 |
* we need 2 bytes for coordinates and 2 bytes for faces, such a trade off |
1592 |
* maps no sense. Instead, we actually really only use 12 bits for coordinates, |
1593 |
* and use the other 4 bits for other informatiion. For full documentation |
1594 |
* of what we send, see the doc/Protocol file. |
1595 |
* I will describe internally what we do: |
1596 |
* the socket->lastmap shows how the map last looked when sent to the client. |
1597 |
* in the lastmap structure, there is a cells array, which is set to the |
1598 |
* maximum viewable size (As set in config.h). |
1599 |
* in the cells, there are faces and a count value. |
1600 |
* we use the count value to hold the darkness value. If -1, then this space |
1601 |
* is not viewable. |
1602 |
* we use faces[0] faces[1] faces[2] to hold what the three layers |
1603 |
* look like. |
1604 |
*/ |
1605 |
void |
1606 |
draw_client_map1 (object *pl) |
1607 |
{ |
1608 |
int x, y, ax, ay, d, startlen, max_x, max_y, oldlen; |
1609 |
sint16 nx, ny; |
1610 |
int estartlen, eoldlen; |
1611 |
uint16 mask, emask; |
1612 |
uint8 eentrysize; |
1613 |
uint16 ewhatstart, ewhatflag; |
1614 |
uint8 extendedinfos; |
1615 |
maptile *m; |
1616 |
|
1617 |
client &socket = *pl->contr->socket; |
1618 |
|
1619 |
check_map_change (pl->contr); |
1620 |
|
1621 |
packet sl; |
1622 |
packet esl; |
1623 |
|
1624 |
sl << (socket.mapmode == Map1Cmd ? "map1 " : "map1a "); |
1625 |
startlen = sl.length (); |
1626 |
|
1627 |
/*Extendedmapinfo structure initialisation */ |
1628 |
if (socket.ext_mapinfos) |
1629 |
{ |
1630 |
extendedinfos = EMI_NOREDRAW; |
1631 |
|
1632 |
if (socket.EMI_smooth) |
1633 |
extendedinfos |= EMI_SMOOTH; |
1634 |
|
1635 |
ewhatstart = esl.length (); |
1636 |
ewhatflag = extendedinfos; /*The EMI_NOREDRAW bit |
1637 |
could need to be taken away */ |
1638 |
eentrysize = getExtendedMapInfoSize (&socket); |
1639 |
esl << "mapextended " |
1640 |
<< uint8 (extendedinfos) |
1641 |
<< uint8 (eentrysize); |
1642 |
|
1643 |
estartlen = esl.length (); |
1644 |
} |
1645 |
else |
1646 |
{ |
1647 |
/* suppress compiler warnings */ |
1648 |
ewhatstart = 0; |
1649 |
ewhatflag = 0; |
1650 |
estartlen = 0; |
1651 |
} |
1652 |
|
1653 |
/* Init data to zero */ |
1654 |
memset (heads, 0, sizeof (object *) * MAX_HEAD_POS * MAX_HEAD_POS * MAX_LAYERS); |
1655 |
|
1656 |
/* x,y are the real map locations. ax, ay are viewport relative |
1657 |
* locations. |
1658 |
*/ |
1659 |
ay = 0; |
1660 |
|
1661 |
/* We could do this logic as conditionals in the if statement, |
1662 |
* but that started to get a bit messy to look at. |
1663 |
*/ |
1664 |
max_x = pl->x + (socket.mapx + 1) / 2; |
1665 |
max_y = pl->y + (socket.mapy + 1) / 2; |
1666 |
|
1667 |
if (socket.mapmode == Map1aCmd) |
1668 |
{ |
1669 |
max_x += MAX_HEAD_OFFSET; |
1670 |
max_y += MAX_HEAD_OFFSET; |
1671 |
} |
1672 |
|
1673 |
for (y = pl->y - socket.mapy / 2; y < max_y; y++, ay++) |
1674 |
{ |
1675 |
ax = 0; |
1676 |
for (x = pl->x - socket.mapx / 2; x < max_x; x++, ax++) |
1677 |
{ |
1678 |
|
1679 |
emask = mask = (ax & 0x3f) << 10 | (ay & 0x3f) << 4; |
1680 |
|
1681 |
/* If this space is out of the normal viewable area, we only check |
1682 |
* the heads value ax or ay will only be greater than what |
1683 |
* the client wants if using the map1a command - this is because |
1684 |
* if the map1a command is not used, max_x and max_y will be |
1685 |
* set to lower values. |
1686 |
*/ |
1687 |
if (ax >= socket.mapx || ay >= socket.mapy) |
1688 |
{ |
1689 |
int i, got_one; |
1690 |
|
1691 |
oldlen = sl.length (); |
1692 |
|
1693 |
sl << uint16 (mask); |
1694 |
|
1695 |
if (check_head (sl, socket, ax, ay, 2)) mask |= 0x4; |
1696 |
if (check_head (sl, socket, ax, ay, 1)) mask |= 0x2; |
1697 |
if (check_head (sl, socket, ax, ay, 0)) mask |= 0x1; |
1698 |
|
1699 |
/* If all we are doing is sending 0 (blank) faces, we don't |
1700 |
* actually need to send that - just the coordinates |
1701 |
* with no faces tells the client to blank out the |
1702 |
* space. |
1703 |
*/ |
1704 |
got_one = 0; |
1705 |
for (i = oldlen + 2; i < sl.length (); i++) |
1706 |
if (sl[i]) |
1707 |
got_one = 1; |
1708 |
|
1709 |
if (got_one && (mask & 0xf)) |
1710 |
sl[oldlen + 1] = mask & 0xff; |
1711 |
else |
1712 |
{ /*either all faces blank, either no face at all */ |
1713 |
if (mask & 0xf) /*at least 1 face, we know it's blank, only send coordinates */ |
1714 |
sl.reset (oldlen + 2); |
1715 |
else |
1716 |
sl.reset (oldlen); |
1717 |
} |
1718 |
|
1719 |
/*What concerns extendinfos, nothing to be done for now |
1720 |
* (perhaps effects layer later) |
1721 |
*/ |
1722 |
continue; /* don't do processing below */ |
1723 |
} |
1724 |
|
1725 |
MapCell &lastcell = socket.lastmap.cells[ax][ay]; |
1726 |
|
1727 |
d = pl->contr->blocked_los[ax][ay]; |
1728 |
|
1729 |
/* If the coordinates are not valid, or it is too dark to see, |
1730 |
* we tell the client as such |
1731 |
*/ |
1732 |
nx = x; |
1733 |
ny = y; |
1734 |
m = get_map_from_coord (pl->map, &nx, &ny); |
1735 |
|
1736 |
if (!m) |
1737 |
{ |
1738 |
/* space is out of map. Update space and clear values |
1739 |
* if this hasn't already been done. If the space is out |
1740 |
* of the map, it shouldn't have a head |
1741 |
*/ |
1742 |
if (lastcell.count != -1) |
1743 |
{ |
1744 |
sl << uint16 (mask); |
1745 |
map_clearcell (&lastcell, 0, 0, 0, -1); |
1746 |
} |
1747 |
} |
1748 |
else if (d > 3) |
1749 |
{ |
1750 |
int need_send = 0, count; |
1751 |
|
1752 |
/* This block deals with spaces that are not visible for whatever |
1753 |
* reason. Still may need to send the head for this space. |
1754 |
*/ |
1755 |
|
1756 |
oldlen = sl.length (); |
1757 |
|
1758 |
sl << uint16 (mask); |
1759 |
|
1760 |
if (lastcell.count != -1) |
1761 |
need_send = 1; |
1762 |
|
1763 |
count = -1; |
1764 |
|
1765 |
if (socket.mapmode == Map1aCmd && have_head (ax, ay)) |
1766 |
{ |
1767 |
/* Now check to see if any heads need to be sent */ |
1768 |
|
1769 |
if (check_head (sl, socket, ax, ay, 2)) mask |= 0x4; |
1770 |
if (check_head (sl, socket, ax, ay, 1)) mask |= 0x2; |
1771 |
if (check_head (sl, socket, ax, ay, 0)) mask |= 0x1; |
1772 |
|
1773 |
lastcell.count = count; |
1774 |
} |
1775 |
else |
1776 |
{ |
1777 |
/* properly clear a previously sent big face */ |
1778 |
if (lastcell.faces[0] != 0 || lastcell.faces[1] != 0 || lastcell.faces[2] != 0 |
1779 |
|| lastcell.stat_hp || lastcell.flags || lastcell.player) |
1780 |
need_send = 1; |
1781 |
|
1782 |
map_clearcell (&lastcell, 0, 0, 0, count); |
1783 |
} |
1784 |
|
1785 |
if ((mask & 0xf) || need_send) |
1786 |
sl[oldlen + 1] = mask & 0xff; |
1787 |
else |
1788 |
sl.reset (oldlen); |
1789 |
} |
1790 |
else |
1791 |
{ |
1792 |
/* In this block, the space is visible or there are head objects |
1793 |
* we need to send. |
1794 |
*/ |
1795 |
|
1796 |
/* Rather than try to figure out what everything that we might |
1797 |
* need to send is, then form the packet after that, |
1798 |
* we presume that we will in fact form a packet, and update |
1799 |
* the bits by what we do actually send. If we send nothing, |
1800 |
* we just back out sl.length () to the old value, and no harm |
1801 |
* is done. |
1802 |
* I think this is simpler than doing a bunch of checks to see |
1803 |
* what if anything we need to send, setting the bits, then |
1804 |
* doing those checks again to add the real data. |
1805 |
*/ |
1806 |
oldlen = sl.length (); |
1807 |
mask = (ax & 0x3f) << 10 | (ay & 0x3f) << 4; |
1808 |
eoldlen = esl.length (); |
1809 |
emask = (ax & 0x3f) << 10 | (ay & 0x3f) << 4; |
1810 |
sl << uint16 (mask); |
1811 |
|
1812 |
if (socket.ext_mapinfos) |
1813 |
esl << uint16 (emask); |
1814 |
|
1815 |
unsigned char dummy; |
1816 |
unsigned char *last_ext = &dummy; |
1817 |
|
1818 |
/* Darkness changed */ |
1819 |
if (lastcell.count != d && socket.darkness) |
1820 |
{ |
1821 |
mask |= 0x8; |
1822 |
|
1823 |
if (socket.extmap) |
1824 |
{ |
1825 |
*last_ext |= 0x80; |
1826 |
last_ext = &sl[sl.length ()]; |
1827 |
sl << uint8 (d); |
1828 |
} |
1829 |
else |
1830 |
sl << uint8 (255 - 64 * d); |
1831 |
} |
1832 |
|
1833 |
lastcell.count = d; |
1834 |
|
1835 |
if (socket.extmap) |
1836 |
{ |
1837 |
uint8 stat_hp = 0; |
1838 |
uint8 stat_width = 0; |
1839 |
uint8 flags = 0; |
1840 |
UUID player = 0; |
1841 |
|
1842 |
// send hp information, if applicable |
1843 |
if (object *op = GET_MAP_FACE_OBJ (m, nx, ny, 0)) |
1844 |
{ |
1845 |
if (op->head || op->invisible) |
1846 |
; // do not show |
1847 |
else if (op->type == PLAYER |
1848 |
|| QUERY_FLAG (op, FLAG_MONSTER) || QUERY_FLAG (op, FLAG_ALIVE) || QUERY_FLAG (op, FLAG_GENERATOR)) |
1849 |
{ |
1850 |
if (op->stats.maxhp > 0 && (unsigned) op->stats.maxhp > (unsigned) op->stats.hp) |
1851 |
{ |
1852 |
stat_hp = 255 - (op->stats.hp * 255 + 254) / op->stats.maxhp; |
1853 |
stat_width = op->arch->tail_x; |
1854 |
} |
1855 |
} |
1856 |
|
1857 |
if (op->msg && op->msg[0] == '@') |
1858 |
flags |= 1; |
1859 |
|
1860 |
if (op->type == PLAYER && op != pl) |
1861 |
player = op->count; |
1862 |
} |
1863 |
|
1864 |
if (lastcell.stat_hp != stat_hp) |
1865 |
{ |
1866 |
lastcell.stat_hp = stat_hp; |
1867 |
|
1868 |
mask |= 0x8; |
1869 |
*last_ext |= 0x80; |
1870 |
last_ext = &sl[sl.length ()]; |
1871 |
|
1872 |
sl << uint8 (5) << uint8 (stat_hp); |
1873 |
|
1874 |
if (stat_width > 1) |
1875 |
{ |
1876 |
*last_ext |= 0x80; |
1877 |
last_ext = &sl[sl.length ()]; |
1878 |
|
1879 |
sl << uint8 (6) << uint8 (stat_width); |
1880 |
} |
1881 |
} |
1882 |
|
1883 |
if (lastcell.player != player) |
1884 |
{ |
1885 |
lastcell.player = player; |
1886 |
|
1887 |
mask |= 0x8; |
1888 |
*last_ext |= 0x80; |
1889 |
last_ext = &sl[sl.length ()]; |
1890 |
|
1891 |
sl << uint8 (0x47) << uint8 (8) << (uint64)player; |
1892 |
} |
1893 |
|
1894 |
if (lastcell.flags != flags) |
1895 |
{ |
1896 |
lastcell.flags = flags; |
1897 |
|
1898 |
mask |= 0x8; |
1899 |
*last_ext |= 0x80; |
1900 |
last_ext = &sl[sl.length ()]; |
1901 |
|
1902 |
sl << uint8 (8) << uint8 (flags); |
1903 |
} |
1904 |
} |
1905 |
|
1906 |
/* Floor face */ |
1907 |
if (update_space (sl, socket, m, nx, ny, ax, ay, 2)) |
1908 |
mask |= 0x4; |
1909 |
|
1910 |
if (socket.EMI_smooth) |
1911 |
if (update_smooth (esl, socket, m, nx, ny, ax, ay, 2)) |
1912 |
emask |= 0x4; |
1913 |
|
1914 |
/* Middle face */ |
1915 |
if (update_space (sl, socket, m, nx, ny, ax, ay, 1)) |
1916 |
mask |= 0x2; |
1917 |
|
1918 |
if (socket.EMI_smooth) |
1919 |
if (update_smooth (esl, socket, m, nx, ny, ax, ay, 1)) |
1920 |
emask |= 0x2; |
1921 |
|
1922 |
if (nx == pl->x && ny == pl->y && pl->invisible & (pl->invisible < 50 ? 4 : 1)) |
1923 |
{ |
1924 |
if (lastcell.faces[0] != pl->face->number) |
1925 |
{ |
1926 |
lastcell.faces[0] = pl->face->number; |
1927 |
mask |= 0x1; |
1928 |
|
1929 |
if (!(socket.faces_sent[pl->face->number] & NS_FACESENT_FACE)) |
1930 |
esrv_send_face (&socket, pl->face->number, 0); |
1931 |
|
1932 |
sl << uint16 (pl->face->number); |
1933 |
} |
1934 |
} |
1935 |
else |
1936 |
{ |
1937 |
/* Top face */ |
1938 |
if (update_space (sl, socket, m, nx, ny, ax, ay, 0)) |
1939 |
mask |= 0x1; |
1940 |
|
1941 |
if (socket.EMI_smooth) |
1942 |
if (update_smooth (esl, socket, m, nx, ny, ax, ay, 0)) |
1943 |
emask |= 0x1; |
1944 |
} |
1945 |
|
1946 |
/* Check to see if we are in fact sending anything for this |
1947 |
* space by checking the mask. If so, update the mask. |
1948 |
* if not, reset the len to that from before adding the mask |
1949 |
* value, so we don't send those bits. |
1950 |
*/ |
1951 |
if (mask & 0xf) |
1952 |
sl[oldlen + 1] = mask & 0xff; |
1953 |
else |
1954 |
sl.reset (oldlen); |
1955 |
|
1956 |
if (emask & 0xf) |
1957 |
esl[eoldlen + 1] = emask & 0xff; |
1958 |
else |
1959 |
esl.reset (eoldlen); |
1960 |
} /* else this is a viewable space */ |
1961 |
} /* for x loop */ |
1962 |
} /* for y loop */ |
1963 |
|
1964 |
/* Verify that we in fact do need to send this */ |
1965 |
if (socket.ext_mapinfos) |
1966 |
{ |
1967 |
if (!(sl.length () > startlen || socket.sent_scroll)) |
1968 |
{ |
1969 |
/* No map data will follow, so don't say the client |
1970 |
* it doesn't need draw! |
1971 |
*/ |
1972 |
ewhatflag &= (~EMI_NOREDRAW); |
1973 |
esl[ewhatstart + 1] = ewhatflag & 0xff; |
1974 |
} |
1975 |
|
1976 |
if (esl.length () > estartlen) |
1977 |
socket.send_packet (esl); |
1978 |
} |
1979 |
|
1980 |
if (sl.length () > startlen || socket.sent_scroll) |
1981 |
{ |
1982 |
socket.send_packet (sl); |
1983 |
socket.sent_scroll = 0; |
1984 |
} |
1985 |
} |
1986 |
|
1987 |
/** |
1988 |
* Draws client map. |
1989 |
*/ |
1990 |
void |
1991 |
draw_client_map (object *pl) |
1992 |
{ |
1993 |
int i, j; |
1994 |
sint16 ax, ay, nx, ny; /* ax and ay goes from 0 to max-size of arrays */ |
1995 |
New_Face *face, *floor; |
1996 |
New_Face *floor2; |
1997 |
int d, mflags; |
1998 |
struct Map newmap; |
1999 |
maptile *m, *pm; |
2000 |
|
2001 |
if (pl->type != PLAYER) |
2002 |
{ |
2003 |
LOG (llevError, "draw_client_map called with non player/non eric-server\n"); |
2004 |
return; |
2005 |
} |
2006 |
|
2007 |
pm = pl->map; |
2008 |
|
2009 |
/* If player is just joining the game, he isn't here yet, so the map |
2010 |
* can get swapped out. If so, don't try to send them a map. All will |
2011 |
* be OK once they really log in. |
2012 |
*/ |
2013 |
if (pm == NULL || pm->in_memory != MAP_IN_MEMORY) |
2014 |
return; |
2015 |
|
2016 |
memset (&newmap, 0, sizeof (struct Map)); |
2017 |
|
2018 |
for (j = (pl->y - pl->contr->socket->mapy / 2); j < (pl->y + (pl->contr->socket->mapy + 1) / 2); j++) |
2019 |
{ |
2020 |
for (i = (pl->x - pl->contr->socket->mapx / 2); i < (pl->x + (pl->contr->socket->mapx + 1) / 2); i++) |
2021 |
{ |
2022 |
ax = i; |
2023 |
ay = j; |
2024 |
m = pm; |
2025 |
mflags = get_map_flags (m, &m, ax, ay, &ax, &ay); |
2026 |
|
2027 |
if (mflags & P_OUT_OF_MAP) |
2028 |
continue; |
2029 |
|
2030 |
if (mflags & P_NEED_UPDATE) |
2031 |
update_position (m, ax, ay); |
2032 |
|
2033 |
/* If a map is visible to the player, we don't want to swap it out |
2034 |
* just to reload it. This should really call something like |
2035 |
* swap_map, but this is much more efficient and 'good enough' |
2036 |
*/ |
2037 |
if (mflags & P_NEW_MAP) |
2038 |
m->timeout = 50; |
2039 |
} |
2040 |
} |
2041 |
/* do LOS after calls to update_position */ |
2042 |
if (pl->contr->do_los) |
2043 |
{ |
2044 |
update_los (pl); |
2045 |
pl->contr->do_los = 0; |
2046 |
} |
2047 |
|
2048 |
/* Big maps need a different drawing mechanism to work */ |
2049 |
draw_client_map1 (pl); |
2050 |
} |
2051 |
|
2052 |
|
2053 |
/*****************************************************************************/ |
2054 |
|
2055 |
/* GROS: The following one is used to allow a plugin to send a generic cmd to*/ |
2056 |
|
2057 |
/* a player. Of course, the client need to know the command to be able to */ |
2058 |
|
2059 |
/* manage it ! */ |
2060 |
|
2061 |
/*****************************************************************************/ |
2062 |
void |
2063 |
send_plugin_custom_message (object *pl, char *buf) |
2064 |
{ |
2065 |
pl->contr->socket->send_packet (buf); |
2066 |
} |
2067 |
|
2068 |
/** |
2069 |
* This sends the skill number to name mapping. We ignore |
2070 |
* the params - we always send the same info no matter what. |
2071 |
*/ |
2072 |
void |
2073 |
send_skill_info (client *ns, char *params) |
2074 |
{ |
2075 |
packet sl; |
2076 |
sl << "replyinfo skill_info\n"; |
2077 |
|
2078 |
for (int i = 1; i < NUM_SKILLS; i++) |
2079 |
sl.printf ("%d:%s\n", i + CS_STAT_SKILLINFO, &skill_names[i]); |
2080 |
|
2081 |
if (sl.length () >= MAXSOCKBUF) |
2082 |
{ |
2083 |
LOG (llevError, "Buffer overflow in send_skill_info!\n"); |
2084 |
fatal (0); |
2085 |
} |
2086 |
|
2087 |
ns->send_packet (sl); |
2088 |
} |
2089 |
|
2090 |
/** |
2091 |
* This sends the spell path to name mapping. We ignore |
2092 |
* the params - we always send the same info no matter what. |
2093 |
*/ |
2094 |
void |
2095 |
send_spell_paths (client * ns, char *params) |
2096 |
{ |
2097 |
packet sl; |
2098 |
|
2099 |
sl << "replyinfo spell_paths\n"; |
2100 |
|
2101 |
for (int i = 0; i < NRSPELLPATHS; i++) |
2102 |
sl.printf ("%d:%s\n", 1 << i, spellpathnames[i]); |
2103 |
|
2104 |
if (sl.length () >= MAXSOCKBUF) |
2105 |
{ |
2106 |
LOG (llevError, "Buffer overflow in send_spell_paths!\n"); |
2107 |
fatal (0); |
2108 |
} |
2109 |
|
2110 |
ns->send_packet (sl); |
2111 |
} |
2112 |
|
2113 |
/** |
2114 |
* This looks for any spells the player may have that have changed their stats. |
2115 |
* it then sends an updspell packet for each spell that has changed in this way |
2116 |
*/ |
2117 |
void |
2118 |
esrv_update_spells (player *pl) |
2119 |
{ |
2120 |
if (!pl->socket->monitor_spells) |
2121 |
return; |
2122 |
|
2123 |
for (object *spell = pl->ob->inv; spell; spell = spell->below) |
2124 |
{ |
2125 |
if (spell->type == SPELL) |
2126 |
{ |
2127 |
int flags = 0; |
2128 |
|
2129 |
/* check if we need to update it */ |
2130 |
if (spell->last_sp != SP_level_spellpoint_cost (pl->ob, spell, SPELL_MANA)) |
2131 |
{ |
2132 |
spell->last_sp = SP_level_spellpoint_cost (pl->ob, spell, SPELL_MANA); |
2133 |
flags |= UPD_SP_MANA; |
2134 |
} |
2135 |
|
2136 |
if (spell->last_grace != SP_level_spellpoint_cost (pl->ob, spell, SPELL_GRACE)) |
2137 |
{ |
2138 |
spell->last_grace = SP_level_spellpoint_cost (pl->ob, spell, SPELL_GRACE); |
2139 |
flags |= UPD_SP_GRACE; |
2140 |
} |
2141 |
|
2142 |
if (spell->last_eat != spell->stats.dam + SP_level_dam_adjust (pl->ob, spell)) |
2143 |
{ |
2144 |
spell->last_eat = spell->stats.dam + SP_level_dam_adjust (pl->ob, spell); |
2145 |
flags |= UPD_SP_DAMAGE; |
2146 |
} |
2147 |
|
2148 |
if (flags) |
2149 |
{ |
2150 |
packet sl; |
2151 |
|
2152 |
sl << "updspell " |
2153 |
<< uint8 (flags) |
2154 |
<< uint32 (spell->count); |
2155 |
|
2156 |
if (flags & UPD_SP_MANA ) sl << uint16 (spell->last_sp); |
2157 |
if (flags & UPD_SP_GRACE ) sl << uint16 (spell->last_grace); |
2158 |
if (flags & UPD_SP_DAMAGE) sl << uint16 (spell->last_eat); |
2159 |
|
2160 |
pl->socket->send_packet (sl); |
2161 |
} |
2162 |
} |
2163 |
} |
2164 |
} |
2165 |
|
2166 |
void |
2167 |
esrv_remove_spell (player *pl, object *spell) |
2168 |
{ |
2169 |
if (!pl->socket->monitor_spells) |
2170 |
return; |
2171 |
|
2172 |
if (!pl || !spell || spell->env != pl->ob) |
2173 |
{ |
2174 |
LOG (llevError, "Invalid call to esrv_remove_spell"); |
2175 |
return; |
2176 |
} |
2177 |
|
2178 |
packet sl; |
2179 |
|
2180 |
sl << "delspell " |
2181 |
<< uint32 (spell->count); |
2182 |
|
2183 |
pl->socket->send_packet (sl); |
2184 |
} |
2185 |
|
2186 |
/* appends the spell *spell to the Socklist we will send the data to. */ |
2187 |
static void |
2188 |
append_spell (player *pl, packet &sl, object *spell) |
2189 |
{ |
2190 |
int len, i, skill = 0; |
2191 |
|
2192 |
if (!(spell->name)) |
2193 |
{ |
2194 |
LOG (llevError, "item number %d is a spell with no name.\n", spell->count); |
2195 |
return; |
2196 |
} |
2197 |
|
2198 |
/* store costs and damage in the object struct, to compare to later */ |
2199 |
spell->last_sp = SP_level_spellpoint_cost (pl->ob, spell, SPELL_MANA); |
2200 |
spell->last_grace = SP_level_spellpoint_cost (pl->ob, spell, SPELL_GRACE); |
2201 |
spell->last_eat = spell->stats.dam + SP_level_dam_adjust (pl->ob, spell); |
2202 |
|
2203 |
/* figure out which skill it uses, if it uses one */ |
2204 |
if (spell->skill) |
2205 |
{ |
2206 |
for (i = 1; i < NUM_SKILLS; i++) |
2207 |
if (!strcmp (spell->skill, skill_names[i])) |
2208 |
{ |
2209 |
skill = i + CS_STAT_SKILLINFO; |
2210 |
break; |
2211 |
} |
2212 |
} |
2213 |
|
2214 |
/* send the current values */ |
2215 |
sl << uint32 (spell->count) |
2216 |
<< uint16 (spell->level) |
2217 |
<< uint16 (spell->casting_time) |
2218 |
<< uint16 (spell->last_sp) |
2219 |
<< uint16 (spell->last_grace) |
2220 |
<< uint16 (spell->last_eat) |
2221 |
<< uint8 (skill) |
2222 |
<< uint32 (spell->path_attuned) |
2223 |
<< uint32 (spell->face ? spell->face->number : 0) |
2224 |
<< data8 (spell->name) |
2225 |
<< data16 (spell->msg); |
2226 |
} |
2227 |
|
2228 |
/** |
2229 |
* This tells the client to add the spell *ob, if *ob is NULL, then add |
2230 |
* all spells in the player's inventory. |
2231 |
*/ |
2232 |
void |
2233 |
esrv_add_spells (player *pl, object *spell) |
2234 |
{ |
2235 |
if (!pl) |
2236 |
{ |
2237 |
LOG (llevError, "esrv_add_spells, tried to add a spell to a NULL player"); |
2238 |
return; |
2239 |
} |
2240 |
|
2241 |
if (!pl->socket->monitor_spells) |
2242 |
return; |
2243 |
|
2244 |
packet sl; |
2245 |
sl << "addspell "; |
2246 |
|
2247 |
if (!spell) |
2248 |
{ |
2249 |
for (spell = pl->ob->inv; spell != NULL; spell = spell->below) |
2250 |
{ |
2251 |
/* were we to simply keep appending data here, we could exceed |
2252 |
* MAXSOCKBUF if the player has enough spells to add, we know that |
2253 |
* append_spells will always append 19 data bytes, plus 4 length |
2254 |
* bytes and 3 strings (because that is the spec) so we need to |
2255 |
* check that the length of those 3 strings, plus the 23 bytes, |
2256 |
* won't take us over the length limit for the socket, if it does, |
2257 |
* we need to send what we already have, and restart packet formation |
2258 |
*/ |
2259 |
/* Seeing crashes by overflowed buffers. Quick arithemetic seems |
2260 |
* to show add_spell is 26 bytes + 2 strings. However, the overun |
2261 |
* is hundreds of bytes off, so correcting 22 vs 26 doesn't seem |
2262 |
* like it will fix this |
2263 |
*/ |
2264 |
if (spell->type != SPELL) |
2265 |
continue; |
2266 |
|
2267 |
if (sl.length () >= (MAXSOCKBUF - (26 + strlen (spell->name) + (spell->msg ? strlen (spell->msg) : 0)))) |
2268 |
{ |
2269 |
pl->socket->send_packet (sl); |
2270 |
|
2271 |
sl.reset (); |
2272 |
sl << "addspell "; |
2273 |
} |
2274 |
|
2275 |
append_spell (pl, sl, spell); |
2276 |
} |
2277 |
} |
2278 |
else if (spell->type != SPELL) |
2279 |
{ |
2280 |
LOG (llevError, "Asked to send a non-spell object as a spell"); |
2281 |
return; |
2282 |
} |
2283 |
else |
2284 |
append_spell (pl, sl, spell); |
2285 |
|
2286 |
if (sl.length () >= MAXSOCKBUF) |
2287 |
{ |
2288 |
LOG (llevError, "Buffer overflow in esrv_add_spells!\n"); |
2289 |
fatal (0); |
2290 |
} |
2291 |
|
2292 |
/* finally, we can send the packet */ |
2293 |
pl->socket->send_packet (sl); |
2294 |
} |
2295 |
|