2 * Empire - A multi-player, client/server Internet based war game.
3 * Copyright (C) 1986-2011, Dave Pare, Jeff Bailey, Thomas Ruschak,
4 * Ken Stevens, Steve McClure, Markus Armbruster
6 * Empire is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
21 * See files README, COPYING and CREDITS in the root of the source
22 * tree for related information and legal notices. It is expected
23 * that future projects/authors will amend these files as needed.
27 * player.c: Main command loop for a player
29 * Known contributors to this file:
31 * Markus Armbruster, 2004-2011
32 * Ron Koenderink, 2004-2009
39 #include "empthread.h"
47 #include "prototypes.h"
51 static int command(void);
52 static int status(void);
54 struct player *player;
57 player_main(struct player *p)
62 p->state = PS_PLAYING;
65 update_timeused_login(player->curup);
67 if (init_nats() < 0) {
68 pr("Server confused, try again later\n");
71 natp = getnatp(player->cnum);
72 if (!may_play_now(natp, player->curup))
74 if (natp->nat_stat != STAT_VIS
75 && natp->nat_last_login
76 && (strcmp(natp->nat_hostaddr, player->hostaddr)
77 || strcmp(natp->nat_userid, player->userid))) {
78 pr("Last connection from: %s", ctime(&natp->nat_last_login));
80 natp->nat_last_login <= natp->nat_last_logout
81 ? ctime(&natp->nat_last_logout) : "?");
84 *natp->nat_hostname ? natp->nat_hostname : natp->nat_hostaddr);
86 strcpy(natp->nat_userid, player->userid);
87 strcpy(natp->nat_hostname, player->hostname);
88 strcpy(natp->nat_hostaddr, player->hostaddr);
89 natp->nat_last_login = player->curup;
92 if (natp->nat_flags & NF_INFORM && natp->nat_tgms > 0) {
93 if (natp->nat_tgms == 1)
94 pr("You have a new telegram waiting ...\n");
96 pr("You have %s new telegrams waiting ...\n",
97 numstr(buf, natp->nat_tgms));
101 while (status() && command()) {
102 player->aborted = player->eof;
105 /* #*# I put the following line in to prevent server crash -KHS */
106 natp = getnatp(player->cnum);
107 time(&natp->nat_last_logout);
109 update_timeused(natp->nat_last_logout);
110 enforce_minimum_session_time();
118 char *redir; /* UTF-8 */
119 char scanspace[1024];
122 if (getcommand(player->combuf) < 0)
123 return player->aborted;
126 update_timeused(now);
127 if (!player->god && !may_play_now(getnatp(player->cnum), now))
130 if (parse(player->combuf, scanspace, player->argp, player->comtail,
131 &player->condarg, &redir) < 0) {
132 pr("See \"info Syntax\"?\n");
134 if (dispatch(player->combuf, redir) < 0)
135 pr("Try \"list of commands\" or \"info\"\n");
147 if (player->eof || player->state == PS_SHUTDOWN)
149 natp = getnatp(player->cnum);
150 if (player->dolcost > 100.0)
151 pr("That just cost you $%.2f\n", player->dolcost);
152 else if (player->dolcost < -100.0)
153 pr("You just made $%.2f\n", -player->dolcost);
154 if (player->dolcost != 0.0) {
156 * Hackish work around for a race condition in the nightly
157 * build's regression tests: sometimes the update starts right
158 * after the force command yields, sometimes a bit later. If
159 * it is late, we use one random number here, for the bye,
160 * and throwing off the random sequence.
162 natp->nat_money -= roundavg(player->dolcost);
163 player->dolcost = 0.0;
166 old_nstat = player->nstat;
167 player_set_nstat(player, natp);
168 if ((old_nstat & MONEY) && !(player->nstat & MONEY))
169 pr("You are now broke; industries are on strike.\n");
170 if (!(old_nstat & MONEY) && (player->nstat & MONEY))
171 pr("You are no longer broke!\n");
173 time(&player->curup);
174 update_timeused(player->curup);
175 if (!may_play_now(natp, player->curup))
177 if (player->btused) {
178 natp->nat_btu -= player->btused;
181 if (natp->nat_tgms > 0) {
182 if (!(natp->nat_flags & NF_INFORM)) {
183 if (natp->nat_tgms == 1)
184 pr("You have a new telegram waiting ...\n");
186 pr("You have %s new telegrams waiting ...\n",
187 numstr(buf, natp->nat_tgms));
191 if (natp->nat_ann > 0) {
192 if (natp->nat_ann == 1)
193 pr("You have a new announcement waiting ...\n");
195 pr("You have %s new announcements waiting ...\n",
196 numstr(buf, natp->nat_ann));
199 if (natp->nat_stat == STAT_ACTIVE && (player->nstat & CAP) == 0)
200 pr("You lost your capital... better designate one (see info capital)\n");
205 /* Is ARG one of the player's last command's arguments? */
207 is_command_arg(char *arg)
211 for (i = 1; i < 128 && player->argp[i]; i++) {
212 if (arg == player->argp[i])
219 * Make all objects stale if ARG is one of the player's command arguments.
220 * See ef_make_stale() for what "making stale" means.
221 * Useful for functions that prompt for missing arguments.
222 * These can yield the processor, so we'd like to call ef_make_stale()
223 * there. Except that leads to false positives when the caller passes
224 * an argument that is never null, and relies on the fact that the
225 * function doesn't yield then. We can't know that in general. But
226 * we do know in the common special case of command arguments.
229 make_stale_if_command_arg(char *arg)
231 if (is_command_arg(arg))
236 * XXX This whole mess should be redone; execute block should
237 * start with "exec start", and should end with "exec end".
238 * We'll wait until 1.2 I guess.
246 char *redir; /* UTF-8 */
247 char scanspace[1024];
251 p = getstarg(player->comtail[1], "File? ", buf);
252 if (p == NULL || *p == '\0')
256 while (!failed && status()) {
257 player->nstat &= ~EXEC;
258 if (recvclient(buf, sizeof(buf)) < 0)
260 if (parse(buf, scanspace, player->argp, player->comtail,
261 &player->condarg, &redir) < 0) {
269 pr("Execute : redirection not supported\n");
271 } else if (dispatch(buf, NULL) < 0)
275 while (recvclient(buf, sizeof(buf)) >= 0) ;
278 pr("Execute : %s\n", failed ? "aborted" : "terminated");
286 show_first_tel(motdfil);
293 player->state = PS_SHUTDOWN;
298 praddr(struct player *p)
300 return prbuf("%s@%s", p->userid,
301 *p->hostname ? p->hostname : p->hostaddr);