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 * empdis.c: Empire dispatcher stuff
29 * Known contributors to this file:
32 * Markus Armbruster, 2006-2010
33 * Ron Koenderink, 2004-2009
50 #include "prototypes.h"
53 #define KEEP_COMMANDS 50
55 /* ring buffer of most recent command prompts and commands, user text */
56 static char player_commands[KEEP_COMMANDS][1024 + 8];
58 /* the slot holding the most recent command in player_commands[] */
59 static int player_commands_index = 0;
61 static void disable_coms(void);
64 * Get a command from the current player into COMBUFP[1024], in UTF-8.
65 * This may block for input, yielding the processor. Flush buffered
66 * output when blocking, to make sure player sees the prompt.
67 * Return command's byte length on success, -1 on error.
70 getcommand(char *combufp)
72 struct natstr *natp = getnatp(player->cnum);
73 char buf[1024]; /* user text */
75 prprompt(natp->nat_timeused / 60, natp->nat_btu);
76 if (recvclient(buf, sizeof(buf)) < 0)
79 if (++player_commands_index >= KEEP_COMMANDS)
80 player_commands_index = 0;
81 sprintf(player_commands[player_commands_index], "%3d %3d %s",
82 player_commands_index, player->cnum, buf);
84 if (player->flags & PF_UTF8)
85 return copy_utf8_no_funny(combufp, buf);
86 return copy_ascii_no_funny(combufp, buf);
90 init_player_commands(void)
94 for (i = 0; i < KEEP_COMMANDS; ++i)
95 *player_commands[i] = 0;
101 log_last_commands(void)
105 logerror("Most recent player commands:");
106 for (i = player_commands_index; i >= 0; --i)
107 if (*player_commands[i])
108 logerror("%s", player_commands[i] + 4);
109 for (i = KEEP_COMMANDS - 1; i > player_commands_index; --i)
110 if (*player_commands[i])
111 logerror("%s", player_commands[i] + 4);
119 pr("\t\tCurrent EMPIRE Command List\n"
120 "\t\t------- ------ ------- ----\n"
121 "Initial number is cost in B.T.U. units.\n"
122 "Next 2 chars (if present) are:\n"
123 "$ - must be non-broke\tc -- must have capital\n"
124 "Args in [brackets] are optional.\n"
125 "All-caps args in <angle brackets>"
126 " have the following meanings:\n"
127 /* FIXME incomplete */
128 " <NUM> :: a number in unspecified units\n"
129 " <COMM> :: a commodity such as `food', `guns', etc\n"
130 " <TYPE> :: an item type such as `ship', `plane', etc\n");
131 for (com = player_coms; com->c_form; com++) {
132 if ((com->c_permit & player->nstat) == com->c_permit) {
133 pr("%2d ", com->c_cost);
134 if (com->c_permit & MONEY)
138 if (com->c_permit & CAP)
142 pr(" %s\n", com->c_form);
145 pr("For further info on command syntax see \"info Syntax\".\n");
152 char *tmp = strdup(disabled_commands);
156 for (name = strtok(tmp, " \t"); name; name = strtok(NULL, " \t")) {
157 cmd = comtch(name, player_coms, -1);
159 logerror("Warning: not disabling %s command %s\n",
160 cmd == M_NOTUNIQUE ? "ambiguous" : "unknown", name);
163 player_coms[cmd].c_permit |= GOD;
170 seconds_since_midnight(time_t time)
172 struct tm *tm = localtime(&time);
178 return time - mktime(tm);
182 update_timeused_login(time_t now)
184 struct natstr *natp = getnatp(player->cnum);
185 time_t midnight_secs = seconds_since_midnight(now);
187 if (now - natp->nat_last_logout > midnight_secs) {
188 natp->nat_timeused = 0;
191 player->lasttime = now;
195 update_timeused(time_t now)
197 struct natstr *natp = getnatp(player->cnum);
198 time_t midnight_secs = seconds_since_midnight(now);
199 time_t dt = now - player->lasttime;
201 if (dt > midnight_secs)
202 natp->nat_timeused = midnight_secs;
204 natp->nat_timeused += dt;
205 player->lasttime = now;
210 enforce_minimum_session_time(void)
212 struct natstr *natp = getnatp(player->cnum);
214 time_t dt = natp->nat_last_logout - natp->nat_last_login;
215 if (dt > seconds_since_midnight(natp->nat_last_logout))
216 dt = seconds_since_midnight(natp->nat_last_logout);
218 natp->nat_timeused += 15 - dt;
223 may_play_now(struct natstr *natp, time_t now)
225 if (CANT_HAPPEN(natp->nat_cnum != player->cnum))
228 if (gamehours(now)) {
229 if (player->flags & PF_HOURS) {
230 pr("\nEmpire hours restriction lifted\n");
231 player->flags &= ~PF_HOURS;
234 if (!(player->flags & PF_HOURS)) {
235 pr("\nEmpire hours restriction in force\n");
236 player->flags |= PF_HOURS;
238 if (natp->nat_stat != STAT_GOD)
242 if (game_play_disabled()) {
243 if (!(player->flags & PF_DOWN)) {
244 show_first_tel(downfil);
245 pr("\nThe game is down\n");
246 player->flags |= PF_DOWN;
248 if (natp->nat_stat != STAT_GOD)
251 player->flags &= ~PF_DOWN;
253 if ((natp->nat_stat != STAT_GOD && natp->nat_stat != STAT_VIS)
254 && natp->nat_timeused > m_m_p_d * 60) {
255 pr("Max minutes per day limit exceeded.\n");